rev |
line source |
jbe@209
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1
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jbe@209
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2 #ifndef __has_include
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jbe@209
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3 #define __has_include(x) 0
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jbe@209
|
4 #endif
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jbe@79
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5
|
jbe@79
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6 #include <stdlib.h>
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jbe@135
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7 #include <stdint.h>
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jbe@135
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8 #include <string.h>
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jbe@135
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9 #include <errno.h>
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jbe@79
|
10 #include <unistd.h>
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jbe@135
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11 #include <signal.h>
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jbe@135
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12 #include <fcntl.h>
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jbe@135
|
13 #include <sys/stat.h>
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jbe@79
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14 #include <sys/socket.h>
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jbe@111
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15 #include <sys/un.h>
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jbe@95
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16 #include <netinet/in.h>
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jbe@95
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17 #include <netinet/tcp.h>
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jbe@135
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18 #include <sys/select.h>
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jbe@136
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19 #include <time.h>
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jbe@135
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20 #include <netdb.h>
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jbe@107
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21 #include <arpa/inet.h>
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jbe@205
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22 #include <sys/types.h>
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jbe@205
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23 #include <sys/wait.h>
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jbe@209
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24 #if defined(__linux__) || __has_include(<bsd/unistd.h>)
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jbe@209
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25 #include <bsd/unistd.h>
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jbe@209
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26 #endif
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jbe@211
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27
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jbe@243
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28 #ifdef MOONBR_IO_USE_TLS
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jbe@243
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29 #include <tls.h>
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jbe@243
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30 #endif
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jbe@243
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31
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jbe@79
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32 #include <lua.h>
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jbe@79
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33 #include <lauxlib.h>
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jbe@79
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34 #include <lualib.h>
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jbe@79
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35
|
jbe@149
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36 #include <assert.h>
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jbe@149
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37
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jbe@80
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38 #define MOONBR_IO_MAXSTRERRORLEN 80
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jbe@85
|
39 #define MOONBR_IO_READBUFLEN 4096
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jbe@80
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40 #define MOONBR_IO_WRITEBUFLEN 4096
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jbe@80
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41
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jbe@108
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42 #define MOONBR_IO_LISTEN_BACKLOG 1024
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jbe@108
|
43
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jbe@213
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44 #define MOONBR_IO_STRERROR_R_MSG "Error detail unavailable due to noncompliant strerror_r() implementation"
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jbe@257
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45 #define moonbr_io_prepare_errmsg() \
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jbe@213
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46 char errmsg[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG; \
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jbe@80
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47 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
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jbe@257
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48 #define moonbr_io_return_prepared_errmsg() \
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jbe@257
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49 lua_pushnil(L); \
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jbe@257
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50 lua_pushstring(L, errmsg); \
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jbe@257
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51 return 2
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jbe@257
|
52 #define moonbr_io_return_errmsg() \
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jbe@257
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53 do { \
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jbe@257
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54 moonbr_io_prepare_errmsg(); \
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jbe@257
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55 moonbr_io_return_prepared_errmsg(); \
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jbe@257
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56 } while (0)
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jbe@80
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57
|
jbe@266
|
58 static int moonbr_io_signalfds[2];
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jbe@266
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59 #define moonbr_io_signalfd_read moonbr_io_signalfds[0]
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jbe@266
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60 #define moonbr_io_signalfd_write moonbr_io_signalfds[1]
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jbe@266
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61
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jbe@79
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62 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
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jbe@79
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63 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
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jbe@108
|
64 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
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jbe@205
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65 #define MOONBR_IO_CHILD_MT_REGKEY "moonbridge_io_child"
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jbe@205
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66 #define MOONBR_IO_CHILD_PT_REGKEY "moonbridge_io_child_pt"
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jbe@266
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67 #define MOONBR_IO_SIGNALSOCKET_REGKEY "moonbridge_io_signalsocket"
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jbe@79
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68
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jbe@243
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69 #ifdef MOONBR_IO_USE_TLS
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jbe@258
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70
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jbe@243
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71 #define MOONBR_IO_TLSCONF_MT_REGKEY "moonbridge_io_tlsconf"
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jbe@252
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72
|
jbe@252
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73 typedef struct {
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jbe@252
|
74 struct tls_config *config;
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jbe@252
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75 int server;
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jbe@252
|
76 } moonbr_io_tlsconf_t;
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jbe@258
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77
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jbe@258
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78 #endif /* MOONBR_IO_USE_TLS */
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jbe@243
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79
|
jbe@79
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80 typedef struct {
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jbe@79
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81 int fd;
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jbe@107
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82 int issock;
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jbe@107
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83 sa_family_t addrfam;
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jbe@94
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84 int finished;
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jbe@94
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85 int closed;
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jbe@81
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86 int nonblocking;
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jbe@95
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87 int nopush;
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jbe@85
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88 int readerr;
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jbe@105
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89 int readbufin;
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jbe@105
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90 int readbufout;
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jbe@81
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91 int writeerr;
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jbe@83
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92 size_t writeleft;
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jbe@132
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93 size_t flushedleft;
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jbe@83
|
94 #if LUA_VERSION_NUM >= 503
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jbe@83
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95 lua_Integer writeqin;
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jbe@83
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96 lua_Integer writeqout;
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jbe@83
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97 #else
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jbe@83
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98 int writeqin;
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jbe@83
|
99 int writeqout;
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jbe@83
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100 #endif
|
jbe@83
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101 size_t writeqoff;
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jbe@103
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102 int writebufin;
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jbe@103
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103 int writebufout;
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jbe@85
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104 char readbuf[MOONBR_IO_READBUFLEN];
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jbe@80
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105 char writebuf[MOONBR_IO_WRITEBUFLEN];
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jbe@246
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106 #ifdef MOONBR_IO_USE_TLS
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jbe@250
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107 struct tls *tls;
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jbe@250
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108 struct tls *servertls;
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jbe@250
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109 int tlshandshake;
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jbe@261
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110 int tlsclosing;
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jbe@246
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111 #endif
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jbe@79
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112 } moonbr_io_handle_t;
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jbe@79
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113
|
jbe@108
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114 typedef struct {
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jbe@108
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115 int fd;
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jbe@118
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116 sa_family_t addrfam;
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jbe@108
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117 int nonblocking;
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jbe@108
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118 } moonbr_io_listener_t;
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jbe@108
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119
|
jbe@205
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120 typedef struct {
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jbe@205
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121 pid_t pid;
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jbe@205
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122 } moonbr_io_child_t;
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jbe@205
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123
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jbe@148
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124 static int moonbr_io_yield(lua_State *L) {
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jbe@149
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125 return lua_yield(L, lua_gettop(L));
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jbe@140
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126 }
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jbe@140
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127
|
jbe@140
|
128 #if LUA_VERSION_NUM >= 503
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jbe@140
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129 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
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jbe@140
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130 #else
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jbe@140
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131 static int moonbr_io_cont_returnall(lua_State *L) {
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jbe@140
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132 #endif
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jbe@140
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133 return lua_gettop(L);
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jbe@140
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134 }
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jbe@140
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135
|
jbe@145
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136 #define moonbr_io_yield_wrapper(yieldfunc, callfunc) \
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jbe@145
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137 static int yieldfunc(lua_State *L) { \
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jbe@145
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138 int args; \
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jbe@145
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139 lua_pushcfunction(L, callfunc); \
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jbe@145
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140 lua_insert(L, 1); \
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jbe@145
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141 args = lua_gettop(L); \
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jbe@148
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142 lua_pushcfunction(L, moonbr_io_yield); \
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jbe@145
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143 lua_insert(L, 3); \
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jbe@145
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144 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall); \
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jbe@145
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145 return lua_gettop(L); \
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jbe@145
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146 }
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jbe@145
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147
|
jbe@256
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148 static int moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
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jbe@95
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149 int flags;
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jbe@256
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150 if (handle->nonblocking == nonblocking) return 0;
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jbe@95
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151 flags = fcntl(handle->fd, F_GETFL, 0);
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jbe@256
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152 if (flags == -1) return -1;
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jbe@95
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153 if (nonblocking) flags |= O_NONBLOCK;
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jbe@95
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154 else flags &= ~O_NONBLOCK;
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jbe@256
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155 if (fcntl(handle->fd, F_SETFL, flags) == -1) return -1;
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jbe@95
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156 handle->nonblocking = nonblocking;
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jbe@256
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157 return 0;
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jbe@81
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158 }
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jbe@81
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159
|
jbe@256
|
160 static int moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
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jbe@87
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161 struct linger lingerval = { 0, };
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jbe@256
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162 if (!handle->issock) return 0;
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jbe@87
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163 if (timeout >= 0) {
|
jbe@87
|
164 lingerval.l_onoff = 1;
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jbe@87
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165 lingerval.l_linger = timeout;
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jbe@87
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166 }
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jbe@256
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167 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) return -1;
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jbe@256
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168 return 0;
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jbe@87
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169 }
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jbe@87
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170
|
jbe@256
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171 static inline int moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
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172 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
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jbe@107
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173 if (
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jbe@107
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174 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
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jbe@107
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175 handle->nopush == nopush
|
jbe@256
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176 ) return 0;
|
jbe@96
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177 #if defined(TCP_NOPUSH)
|
jbe@256
|
178 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) return -1;
|
jbe@104
|
179 #elif defined(TCP_CORK)
|
jbe@256
|
180 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) return -1;
|
jbe@251
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181 #endif
|
jbe@95
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182 handle->nopush = nopush;
|
jbe@96
|
183 #else
|
jbe@96
|
184 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
|
185 #endif
|
jbe@256
|
186 return 0;
|
jbe@95
|
187 }
|
jbe@95
|
188
|
jbe@86
|
189 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
190 moonbr_io_handle_t *handle;
|
jbe@85
|
191 lua_Integer maxread;
|
jbe@85
|
192 const char *terminatorstr;
|
jbe@210
|
193 size_t terminatorlen;
|
jbe@210
|
194 char terminator = 0; /* initialize to avoid compiler warning */
|
jbe@85
|
195 luaL_Buffer luabuf;
|
jbe@85
|
196 size_t luabufcnt = 0;
|
jbe@105
|
197 int remaining;
|
jbe@85
|
198 char *terminatorpos;
|
jbe@103
|
199 ssize_t bytesread;
|
jbe@85
|
200 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@153
|
201 maxread = luaL_optinteger(L, 2, -1);
|
jbe@85
|
202 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
203 if (terminatorlen) {
|
jbe@85
|
204 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
205 terminator = terminatorstr[0];
|
jbe@85
|
206 }
|
jbe@86
|
207 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
|
208 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
209 if (handle->readerr) {
|
jbe@85
|
210 lua_pushnil(L);
|
jbe@85
|
211 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
212 return 2;
|
jbe@85
|
213 }
|
jbe@143
|
214 if (handle->fd < 0) {
|
jbe@143
|
215 /* fake EOF to simulate shutdown */
|
jbe@143
|
216 if (!drain) lua_pushliteral(L, "");
|
jbe@143
|
217 else lua_pushinteger(L, 0);
|
jbe@143
|
218 lua_pushliteral(L, "eof");
|
jbe@143
|
219 return 2;
|
jbe@143
|
220 }
|
jbe@105
|
221 handle->readerr = 1;
|
jbe@257
|
222 if (moonbr_io_handle_set_nonblocking(L, handle, nonblocking)) moonbr_io_return_errmsg();
|
jbe@86
|
223 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
224 while (1) {
|
jbe@105
|
225 remaining = -1;
|
jbe@142
|
226 terminatorpos = NULL;
|
jbe@105
|
227 if (
|
jbe@153
|
228 maxread >= 0 &&
|
jbe@143
|
229 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
230 ) {
|
jbe@142
|
231 remaining = (size_t)maxread - luabufcnt;
|
jbe@193
|
232 if (terminatorlen) {
|
jbe@193
|
233 terminatorpos = memchr(
|
jbe@193
|
234 handle->readbuf + handle->readbufout,
|
jbe@193
|
235 terminator,
|
jbe@193
|
236 remaining
|
jbe@193
|
237 );
|
jbe@193
|
238 }
|
jbe@85
|
239 } else if (terminatorlen) {
|
jbe@105
|
240 terminatorpos = memchr(
|
jbe@105
|
241 handle->readbuf + handle->readbufout,
|
jbe@105
|
242 terminator,
|
jbe@105
|
243 handle->readbufin - handle->readbufout
|
jbe@105
|
244 );
|
jbe@85
|
245 }
|
jbe@142
|
246 if (terminatorpos) remaining = 1 + (
|
jbe@142
|
247 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@142
|
248 );
|
jbe@105
|
249 if (remaining >= 0) {
|
jbe@86
|
250 if (!drain) {
|
jbe@105
|
251 luaL_addlstring(
|
jbe@105
|
252 &luabuf,
|
jbe@105
|
253 handle->readbuf + handle->readbufout,
|
jbe@105
|
254 remaining
|
jbe@105
|
255 );
|
jbe@86
|
256 luaL_pushresult(&luabuf);
|
jbe@90
|
257 } else {
|
jbe@105
|
258 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
259 }
|
jbe@143
|
260 if (terminatorpos) lua_pushliteral(L, "term");
|
jbe@143
|
261 else lua_pushliteral(L, "maxlen");
|
jbe@105
|
262 handle->readbufout += remaining;
|
jbe@105
|
263 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
264 handle->readbufin = 0;
|
jbe@143
|
265 handle->readbufout = 0;
|
jbe@105
|
266 }
|
jbe@104
|
267 handle->readerr = 0;
|
jbe@143
|
268 return 2;
|
jbe@85
|
269 }
|
jbe@105
|
270 if (!drain) luaL_addlstring(
|
jbe@105
|
271 &luabuf,
|
jbe@105
|
272 handle->readbuf + handle->readbufout,
|
jbe@105
|
273 handle->readbufin - handle->readbufout
|
jbe@105
|
274 );
|
jbe@105
|
275 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@143
|
276 handle->readbufout = 0;
|
jbe@249
|
277 #ifdef MOONBR_IO_USE_TLS
|
jbe@249
|
278 if (handle->tls) {
|
jbe@250
|
279 do {
|
jbe@250
|
280 if (!handle->tlshandshake) {
|
jbe@250
|
281 do bytesread = tls_handshake(handle->tls);
|
jbe@250
|
282 while (!nonblocking && (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT));
|
jbe@250
|
283 if (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT) {
|
jbe@250
|
284 handle->tlshandshake = bytesread;
|
jbe@250
|
285 errno = EAGAIN;
|
jbe@250
|
286 break;
|
jbe@250
|
287 }
|
jbe@250
|
288 if (bytesread < 0) {
|
jbe@250
|
289 lua_pushnil(L);
|
jbe@250
|
290 lua_pushstring(L, tls_error(handle->tls));
|
jbe@250
|
291 return 2;
|
jbe@250
|
292 }
|
jbe@250
|
293 handle->tlshandshake = 1;
|
jbe@250
|
294 }
|
jbe@250
|
295 do bytesread = tls_read(handle->tls, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@250
|
296 while (!nonblocking && (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT));
|
jbe@250
|
297 if (bytesread == TLS_WANT_POLLIN || bytesread == TLS_WANT_POLLOUT) {
|
jbe@250
|
298 errno = EAGAIN;
|
jbe@250
|
299 break;
|
jbe@250
|
300 }
|
jbe@250
|
301 if (bytesread < 0) {
|
jbe@250
|
302 lua_pushnil(L);
|
jbe@250
|
303 lua_pushstring(L, tls_error(handle->tls));
|
jbe@250
|
304 return 2;
|
jbe@250
|
305 }
|
jbe@250
|
306 } while (0);
|
jbe@249
|
307 }
|
jbe@249
|
308 else
|
jbe@249
|
309 #endif
|
jbe@249
|
310 do bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@249
|
311 while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
312 if (
|
jbe@105
|
313 bytesread == 0 || (
|
jbe@105
|
314 nonblocking &&
|
jbe@105
|
315 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
316 )
|
jbe@105
|
317 ) {
|
jbe@105
|
318 handle->readbufin = 0;
|
jbe@143
|
319 if (!drain) luaL_pushresult(&luabuf);
|
jbe@143
|
320 else lua_pushinteger(L, luabufcnt);
|
jbe@143
|
321 if (bytesread == 0) lua_pushliteral(L, "eof");
|
jbe@143
|
322 else lua_pushliteral(L, "block");
|
jbe@105
|
323 handle->readerr = 0;
|
jbe@143
|
324 return 2;
|
jbe@105
|
325 }
|
jbe@257
|
326 if (bytesread < 0) moonbr_io_return_errmsg();
|
jbe@105
|
327 handle->readbufin = bytesread;
|
jbe@86
|
328 }
|
jbe@85
|
329 }
|
jbe@85
|
330
|
jbe@85
|
331 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
332 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
333 }
|
jbe@85
|
334
|
jbe@85
|
335 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
336 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
337 }
|
jbe@86
|
338
|
jbe@86
|
339 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
340 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
341 }
|
jbe@86
|
342
|
jbe@86
|
343 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
344 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
345 }
|
jbe@85
|
346
|
jbe@140
|
347 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
348 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
349 #else
|
jbe@140
|
350 static int moonbr_io_read_cont(lua_State *L) {
|
jbe@140
|
351 #endif
|
jbe@143
|
352 lua_Integer remaining;
|
jbe@143
|
353 size_t len;
|
jbe@140
|
354 #if !(LUA_VERSION_NUM >= 503)
|
jbe@140
|
355 int ctx = 0;
|
jbe@140
|
356 lua_getctx(L, &ctx);
|
jbe@140
|
357 #endif
|
jbe@140
|
358 remaining = lua_tointeger(L, 3);
|
jbe@140
|
359 while (1) {
|
jbe@140
|
360 lua_pushcfunction(L, moonbr_io_read_nb);
|
jbe@140
|
361 lua_pushvalue(L, 1);
|
jbe@140
|
362 lua_pushvalue(L, 3);
|
jbe@140
|
363 lua_pushvalue(L, 4);
|
jbe@140
|
364 lua_call(L, 3, 2);
|
jbe@143
|
365 if (lua_isnil(L, -2)) return 2;
|
jbe@143
|
366 lua_insert(L, -2);
|
jbe@143
|
367 len = lua_rawlen(L, -1);
|
jbe@143
|
368 if (ctx == 0) {
|
jbe@143
|
369 lua_replace(L, 5);
|
jbe@143
|
370 ctx = 1;
|
jbe@143
|
371 } else if (ctx == 1) {
|
jbe@143
|
372 lua_pushvalue(L, 5);
|
jbe@143
|
373 lua_newtable(L);
|
jbe@143
|
374 lua_replace(L, 5);
|
jbe@143
|
375 lua_rawseti(L, 5, 2);
|
jbe@143
|
376 lua_rawseti(L, 5, 1);
|
jbe@143
|
377 ctx = 2;
|
jbe@140
|
378 } else {
|
jbe@143
|
379 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
|
jbe@140
|
380 }
|
jbe@144
|
381 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
382 lua_pop(L, 1);
|
jbe@144
|
383 if (remaining >= 0 && len) {
|
jbe@143
|
384 remaining -= len;
|
jbe@143
|
385 lua_pushinteger(L, remaining);
|
jbe@143
|
386 lua_replace(L, 3);
|
jbe@143
|
387 }
|
jbe@140
|
388 lua_pushvalue(L, 2);
|
jbe@152
|
389 lua_callk(L, 0, 0, ctx, moonbr_io_read_cont);
|
jbe@140
|
390 }
|
jbe@140
|
391 if (ctx == 1) {
|
jbe@140
|
392 lua_pushvalue(L, 5);
|
jbe@140
|
393 } else {
|
jbe@140
|
394 luaL_Buffer buf;
|
jbe@140
|
395 lua_Integer i, chunkcount;
|
jbe@140
|
396 chunkcount = lua_rawlen(L, 5);
|
jbe@140
|
397 luaL_buffinit(L, &buf);
|
jbe@140
|
398 for (i=1; i<=chunkcount && i>0; i++) {
|
jbe@140
|
399 lua_rawgeti(L, 5, i);
|
jbe@140
|
400 luaL_addvalue(&buf);
|
jbe@140
|
401 }
|
jbe@140
|
402 luaL_pushresult(&buf);
|
jbe@140
|
403 }
|
jbe@143
|
404 lua_pushvalue(L, -2);
|
jbe@143
|
405 return 2;
|
jbe@140
|
406 }
|
jbe@140
|
407
|
jbe@140
|
408 static int moonbr_io_read_call(lua_State *L) {
|
jbe@140
|
409 lua_settop(L, 4);
|
jbe@140
|
410 lua_pushnil(L);
|
jbe@140
|
411 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
412 return moonbr_io_read_cont(L, 0, 0);
|
jbe@140
|
413 #else
|
jbe@140
|
414 return moonbr_io_read_cont(L);
|
jbe@140
|
415 #endif
|
jbe@140
|
416 }
|
jbe@140
|
417
|
jbe@145
|
418 moonbr_io_yield_wrapper(moonbr_io_read_yield, moonbr_io_read_call);
|
jbe@140
|
419
|
jbe@144
|
420 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
421 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@144
|
422 #else
|
jbe@144
|
423 static int moonbr_io_drain_cont(lua_State *L) {
|
jbe@144
|
424 #endif
|
jbe@144
|
425 lua_Integer remaining, len;
|
jbe@144
|
426 size_t totallen = 0;
|
jbe@144
|
427 #if !(LUA_VERSION_NUM >= 503)
|
jbe@144
|
428 int ctx = 0;
|
jbe@144
|
429 lua_getctx(L, &ctx);
|
jbe@144
|
430 #endif
|
jbe@144
|
431 remaining = lua_tointeger(L, 3);
|
jbe@144
|
432 while (1) {
|
jbe@144
|
433 lua_pushcfunction(L, moonbr_io_drain_nb);
|
jbe@144
|
434 lua_pushvalue(L, 1);
|
jbe@144
|
435 lua_pushvalue(L, 3);
|
jbe@144
|
436 lua_pushvalue(L, 4);
|
jbe@144
|
437 lua_call(L, 3, 2);
|
jbe@144
|
438 if (lua_isnil(L, -2)) return 2;
|
jbe@144
|
439 lua_insert(L, -2);
|
jbe@144
|
440 len = lua_tointeger(L, -1);
|
jbe@144
|
441 lua_pop(L, 1);
|
jbe@144
|
442 totallen += len;
|
jbe@144
|
443 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
444 lua_pop(L, 1);
|
jbe@144
|
445 if (remaining >= 0 && len) {
|
jbe@144
|
446 remaining -= len;
|
jbe@144
|
447 lua_pushinteger(L, remaining);
|
jbe@144
|
448 lua_replace(L, 3);
|
jbe@144
|
449 }
|
jbe@144
|
450 lua_pushvalue(L, 2);
|
jbe@152
|
451 lua_callk(L, 0, 0, ctx, moonbr_io_drain_cont);
|
jbe@144
|
452 }
|
jbe@144
|
453 lua_pushinteger(L, totallen);
|
jbe@144
|
454 lua_pushvalue(L, -2);
|
jbe@144
|
455 return 2;
|
jbe@144
|
456 }
|
jbe@144
|
457
|
jbe@144
|
458 static int moonbr_io_drain_call(lua_State *L) {
|
jbe@144
|
459 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
460 return moonbr_io_drain_cont(L, 0, 0);
|
jbe@144
|
461 #else
|
jbe@144
|
462 return moonbr_io_drain_cont(L);
|
jbe@144
|
463 #endif
|
jbe@144
|
464 }
|
jbe@144
|
465
|
jbe@145
|
466 moonbr_io_yield_wrapper(moonbr_io_drain_yield, moonbr_io_drain_call);
|
jbe@144
|
467
|
jbe@250
|
468 #ifdef MOONBR_IO_USE_TLS
|
jbe@258
|
469
|
jbe@250
|
470 #define moonbr_io_write_tls(buf, buflen) \
|
jbe@250
|
471 if (handle->tls) { \
|
jbe@250
|
472 do { \
|
jbe@250
|
473 if (!handle->tlshandshake) { \
|
jbe@250
|
474 do written = tls_handshake(handle->tls); \
|
jbe@250
|
475 while (!nonblocking && (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT)); \
|
jbe@250
|
476 if (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT) { \
|
jbe@250
|
477 handle->tlshandshake = written; \
|
jbe@250
|
478 errno = EAGAIN; \
|
jbe@250
|
479 break; \
|
jbe@250
|
480 } \
|
jbe@250
|
481 if (written < 0) { \
|
jbe@250
|
482 lua_pushnil(L); \
|
jbe@250
|
483 lua_pushstring(L, tls_error(handle->tls)); \
|
jbe@250
|
484 return 2; \
|
jbe@250
|
485 } \
|
jbe@250
|
486 handle->tlshandshake = 1; \
|
jbe@250
|
487 } \
|
jbe@250
|
488 do written = tls_write(handle->tls, (buf), (buflen)); \
|
jbe@250
|
489 while (!nonblocking && (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT)); \
|
jbe@250
|
490 if (written == TLS_WANT_POLLIN || written == TLS_WANT_POLLOUT) { \
|
jbe@250
|
491 errno = EAGAIN; \
|
jbe@250
|
492 break; \
|
jbe@250
|
493 } \
|
jbe@250
|
494 if (written < 0) { \
|
jbe@250
|
495 lua_pushnil(L); \
|
jbe@250
|
496 lua_pushstring(L, tls_error(handle->tls)); \
|
jbe@250
|
497 return 2; \
|
jbe@250
|
498 } \
|
jbe@250
|
499 } while (0); \
|
jbe@250
|
500 } \
|
jbe@250
|
501 else
|
jbe@258
|
502
|
jbe@258
|
503 #endif /* MOONBR_IO_USE_TLS */
|
jbe@250
|
504
|
jbe@81
|
505 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
506 moonbr_io_handle_t *handle;
|
jbe@80
|
507 int i, top;
|
jbe@80
|
508 const char *str;
|
jbe@92
|
509 size_t strlen;
|
jbe@103
|
510 ssize_t written;
|
jbe@80
|
511 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
512 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
513 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
514 if (handle->writeerr) {
|
jbe@80
|
515 lua_pushnil(L);
|
jbe@80
|
516 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
517 return 2;
|
jbe@80
|
518 }
|
jbe@103
|
519 handle->writeerr = 1;
|
jbe@257
|
520 if (moonbr_io_handle_set_nonblocking(L, handle, nonblocking)) moonbr_io_return_errmsg();
|
jbe@84
|
521 top = lua_gettop(L);
|
jbe@81
|
522 lua_getuservalue(L, 1);
|
jbe@103
|
523 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
524 for (i=2; i<=top; i++) {
|
jbe@84
|
525 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
526 lua_pushvalue(L, i);
|
jbe@84
|
527 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
528 handle->writeleft += strlen;
|
jbe@81
|
529 }
|
jbe@132
|
530 if (flush) handle->flushedleft = handle->writeleft;
|
jbe@83
|
531 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
532 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
533 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
534 while (handle->writeqoff < strlen) {
|
jbe@103
|
535 if (
|
jbe@132
|
536 strlen - handle->writeqoff <
|
jbe@103
|
537 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
538 ) {
|
jbe@103
|
539 memcpy(
|
jbe@103
|
540 handle->writebuf + handle->writebufin,
|
jbe@103
|
541 str + handle->writeqoff,
|
jbe@103
|
542 strlen - handle->writeqoff
|
jbe@103
|
543 );
|
jbe@103
|
544 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
545 break;
|
jbe@80
|
546 } else {
|
jbe@103
|
547 memcpy(
|
jbe@103
|
548 handle->writebuf + handle->writebufin,
|
jbe@103
|
549 str + handle->writeqoff,
|
jbe@103
|
550 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
551 );
|
jbe@103
|
552 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@228
|
553 handle->writebufin = MOONBR_IO_WRITEBUFLEN;
|
jbe@103
|
554 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@257
|
555 if (moonbr_io_handle_set_nopush(L, handle, 1)) moonbr_io_return_errmsg();
|
jbe@249
|
556 #ifdef MOONBR_IO_USE_TLS
|
jbe@250
|
557 moonbr_io_write_tls(
|
jbe@250
|
558 handle->writebuf + handle->writebufout,
|
jbe@250
|
559 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@250
|
560 )
|
jbe@249
|
561 #endif
|
jbe@103
|
562 written = write(
|
jbe@103
|
563 handle->fd,
|
jbe@103
|
564 handle->writebuf + handle->writebufout,
|
jbe@103
|
565 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
566 );
|
jbe@103
|
567 if (written < 0) {
|
jbe@81
|
568 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
569 goto moonbr_io_write_impl_block;
|
jbe@257
|
570 } else if (errno != EINTR) moonbr_io_return_errmsg();
|
jbe@103
|
571 } else {
|
jbe@103
|
572 handle->writebufout += written;
|
jbe@103
|
573 handle->writeleft -= written;
|
jbe@133
|
574 if (handle->flushedleft) {
|
jbe@133
|
575 if (written >= handle->flushedleft) {
|
jbe@133
|
576 handle->flushedleft = 0;
|
jbe@257
|
577 if (moonbr_io_handle_set_nopush(L, handle, 0)) moonbr_io_return_errmsg();
|
jbe@133
|
578 } else {
|
jbe@133
|
579 handle->flushedleft -= written;
|
jbe@133
|
580 }
|
jbe@133
|
581 }
|
jbe@80
|
582 }
|
jbe@80
|
583 }
|
jbe@103
|
584 handle->writebufin = 0;
|
jbe@103
|
585 handle->writebufout = 0;
|
jbe@80
|
586 }
|
jbe@80
|
587 }
|
jbe@81
|
588 handle->writeqoff = 0;
|
jbe@81
|
589 lua_pop(L, 1);
|
jbe@81
|
590 lua_pushnil(L);
|
jbe@83
|
591 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
592 }
|
jbe@132
|
593 while (handle->flushedleft) {
|
jbe@257
|
594 if (moonbr_io_handle_set_nopush(L, handle, 1)) moonbr_io_return_errmsg();
|
jbe@249
|
595 #ifdef MOONBR_IO_USE_TLS
|
jbe@250
|
596 moonbr_io_write_tls(
|
jbe@250
|
597 handle->writebuf + handle->writebufout,
|
jbe@250
|
598 handle->writebufin - handle->writebufout
|
jbe@250
|
599 )
|
jbe@249
|
600 #endif
|
jbe@132
|
601 written = write(
|
jbe@132
|
602 handle->fd,
|
jbe@132
|
603 handle->writebuf + handle->writebufout,
|
jbe@132
|
604 handle->writebufin - handle->writebufout
|
jbe@132
|
605 );
|
jbe@132
|
606 if (written < 0) {
|
jbe@132
|
607 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@132
|
608 goto moonbr_io_write_impl_block;
|
jbe@257
|
609 } else if (errno != EINTR) moonbr_io_return_errmsg();
|
jbe@132
|
610 } else {
|
jbe@132
|
611 handle->writebufout += written;
|
jbe@132
|
612 handle->writeleft -= written;
|
jbe@133
|
613 if (handle->flushedleft) {
|
jbe@133
|
614 if (written >= handle->flushedleft) {
|
jbe@133
|
615 handle->flushedleft = 0;
|
jbe@257
|
616 if (moonbr_io_handle_set_nopush(L, handle, 0)) moonbr_io_return_errmsg();
|
jbe@133
|
617 } else {
|
jbe@133
|
618 handle->flushedleft -= written;
|
jbe@133
|
619 }
|
jbe@133
|
620 }
|
jbe@81
|
621 }
|
jbe@132
|
622 }
|
jbe@132
|
623 if (handle->writebufout == handle->writebufin) {
|
jbe@103
|
624 handle->writebufin = 0;
|
jbe@103
|
625 handle->writebufout = 0;
|
jbe@81
|
626 }
|
jbe@103
|
627 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
628 else lua_pushvalue(L, 1);
|
jbe@103
|
629 handle->writeerr = 0;
|
jbe@80
|
630 return 1;
|
jbe@81
|
631 moonbr_io_write_impl_block:
|
jbe@91
|
632 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
633 handle->writeerr = 0;
|
jbe@81
|
634 return 1;
|
jbe@81
|
635 }
|
jbe@81
|
636
|
jbe@81
|
637 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
638 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
639 }
|
jbe@81
|
640
|
jbe@81
|
641 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
642 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
643 }
|
jbe@80
|
644
|
jbe@80
|
645 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
646 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
647 }
|
jbe@81
|
648
|
jbe@81
|
649 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
650 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
651 }
|
jbe@80
|
652
|
jbe@145
|
653 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
654 static int moonbr_io_write_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@145
|
655 #else
|
jbe@145
|
656 static int moonbr_io_write_cont(lua_State *L) {
|
jbe@145
|
657 #endif
|
jbe@145
|
658 while (1) {
|
jbe@145
|
659 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
660 lua_pushvalue(L, 1);
|
jbe@145
|
661 lua_call(L, 1, 2);
|
jbe@145
|
662 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
663 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
664 lua_pushvalue(L, 1);
|
jbe@145
|
665 return 1;
|
jbe@145
|
666 }
|
jbe@145
|
667 lua_pop(L, 2);
|
jbe@145
|
668 lua_pushvalue(L, 2);
|
jbe@152
|
669 lua_callk(L, 0, 0, 0, moonbr_io_write_cont);
|
jbe@145
|
670 }
|
jbe@145
|
671 }
|
jbe@145
|
672
|
jbe@145
|
673 static int moonbr_io_write_call(lua_State *L) {
|
jbe@145
|
674 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
675 lua_insert(L, 3);
|
jbe@145
|
676 lua_pushvalue(L, 1);
|
jbe@145
|
677 lua_insert(L, 4);
|
jbe@145
|
678 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
679 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
680 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
681 lua_pushvalue(L, 1);
|
jbe@145
|
682 return 1;
|
jbe@145
|
683 }
|
jbe@145
|
684 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
685 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
686 #else
|
jbe@145
|
687 return moonbr_io_write_cont(L);
|
jbe@145
|
688 #endif
|
jbe@145
|
689 }
|
jbe@145
|
690
|
jbe@145
|
691 moonbr_io_yield_wrapper(moonbr_io_write_yield, moonbr_io_write_call);
|
jbe@145
|
692
|
jbe@145
|
693 static int moonbr_io_flush_call(lua_State *L) {
|
jbe@145
|
694 lua_pushcfunction(L, moonbr_io_flush_nb);
|
jbe@145
|
695 lua_insert(L, 3);
|
jbe@145
|
696 lua_pushvalue(L, 1);
|
jbe@145
|
697 lua_insert(L, 4);
|
jbe@145
|
698 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
699 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
700 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
701 lua_pushvalue(L, 1);
|
jbe@145
|
702 return 1;
|
jbe@145
|
703 }
|
jbe@145
|
704 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
705 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
706 #else
|
jbe@145
|
707 return moonbr_io_write_cont(L);
|
jbe@145
|
708 #endif
|
jbe@145
|
709 }
|
jbe@145
|
710
|
jbe@145
|
711 moonbr_io_yield_wrapper(moonbr_io_flush_yield, moonbr_io_flush_call);
|
jbe@145
|
712
|
jbe@88
|
713 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
714 moonbr_io_handle_t *handle;
|
jbe@88
|
715 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
716 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
717 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
718 if (handle->writeleft) {
|
jbe@94
|
719 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
720 lua_pushvalue(L, 1);
|
jbe@116
|
721 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@116
|
722 handle->finished = 1;
|
jbe@116
|
723 lua_error(L);
|
jbe@116
|
724 }
|
jbe@94
|
725 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
726 handle->finished = 1;
|
jbe@94
|
727 return 2;
|
jbe@88
|
728 }
|
jbe@94
|
729 }
|
jbe@94
|
730 handle->finished = 1;
|
jbe@260
|
731 #ifdef MOONBR_IO_USE_TLS
|
jbe@260
|
732 if ((handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) && !handle->tls) {
|
jbe@260
|
733 #else
|
jbe@107
|
734 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@260
|
735 #endif
|
jbe@257
|
736 if (shutdown(handle->fd, SHUT_WR)) moonbr_io_return_errmsg();
|
jbe@94
|
737 } else {
|
jbe@251
|
738 #ifdef MOONBR_IO_USE_TLS
|
jbe@260
|
739 if (handle->tls) {
|
jbe@260
|
740 int status;
|
jbe@260
|
741 if (moonbr_io_handle_set_nonblocking(L, handle, 1)) moonbr_io_return_errmsg();
|
jbe@260
|
742 do status = tls_close(handle->tls);
|
jbe@260
|
743 while (status == TLS_WANT_POLLIN || status == TLS_WANT_POLLOUT);
|
jbe@260
|
744 if (status) {
|
jbe@260
|
745 close(handle->fd);
|
jbe@260
|
746 handle->fd = -1;
|
jbe@260
|
747 lua_pushnil(L);
|
jbe@260
|
748 lua_pushstring(L, tls_error(handle->tls));
|
jbe@260
|
749 return 2;
|
jbe@260
|
750 }
|
jbe@260
|
751 }
|
jbe@251
|
752 #endif
|
jbe@94
|
753 if (close(handle->fd)) {
|
jbe@94
|
754 handle->fd = -1;
|
jbe@257
|
755 moonbr_io_return_errmsg();
|
jbe@94
|
756 }
|
jbe@94
|
757 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
758 }
|
jbe@88
|
759 lua_pushboolean(L, 1);
|
jbe@88
|
760 return 1;
|
jbe@88
|
761 }
|
jbe@88
|
762
|
jbe@261
|
763 static int moonbr_io_close_impl(lua_State *L, int nonblocking, int reset) {
|
jbe@83
|
764 moonbr_io_handle_t *handle;
|
jbe@83
|
765 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
766 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@259
|
767 if (!reset && handle->fd >= 0) {
|
jbe@87
|
768 if (handle->writeleft) {
|
jbe@261
|
769 lua_pushcfunction(L, nonblocking ? moonbr_io_flush_nb : moonbr_io_flush);
|
jbe@87
|
770 lua_pushvalue(L, 1);
|
jbe@116
|
771 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@129
|
772 handle->closed = 1;
|
jbe@116
|
773 close(handle->fd);
|
jbe@116
|
774 handle->fd = -1;
|
jbe@116
|
775 lua_error(L);
|
jbe@116
|
776 }
|
jbe@261
|
777 if (!nonblocking) handle->closed = 1; /* TODO: handle nonblocking case */
|
jbe@87
|
778 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
779 close(handle->fd);
|
jbe@87
|
780 handle->fd = -1;
|
jbe@87
|
781 return 2;
|
jbe@87
|
782 }
|
jbe@261
|
783 #if LUA_VERSION_NUM >= 503
|
jbe@261
|
784 if (nonblocking && lua_tointeger(L, -2)) {
|
jbe@261
|
785 #else
|
jbe@261
|
786 if (nonblocking && lua_tonumber(L, -2)) {
|
jbe@261
|
787 #endif
|
jbe@261
|
788 lua_pushliteral(L, "flush");
|
jbe@261
|
789 lua_pushvalue(L, -3);
|
jbe@261
|
790 return 2;
|
jbe@261
|
791 }
|
jbe@129
|
792 } else {
|
jbe@129
|
793 handle->closed = 1;
|
jbe@83
|
794 }
|
jbe@260
|
795 #ifdef MOONBR_IO_USE_TLS
|
jbe@260
|
796 if (handle->tls) {
|
jbe@260
|
797 int status;
|
jbe@261
|
798 if (moonbr_io_handle_set_nonblocking(L, handle, nonblocking)) moonbr_io_return_errmsg();
|
jbe@260
|
799 do status = tls_close(handle->tls);
|
jbe@261
|
800 while (!nonblocking && (status == TLS_WANT_POLLIN || status == TLS_WANT_POLLOUT));
|
jbe@261
|
801 if (status == TLS_WANT_POLLIN || status == TLS_WANT_POLLOUT) {
|
jbe@261
|
802 handle->tlsclosing = status; /* TODO: handle polling */
|
jbe@261
|
803 lua_pushliteral(L, "close");
|
jbe@261
|
804 return 1;
|
jbe@261
|
805 }
|
jbe@260
|
806 if (status) {
|
jbe@260
|
807 close(handle->fd);
|
jbe@260
|
808 handle->fd = -1;
|
jbe@260
|
809 lua_pushnil(L);
|
jbe@260
|
810 lua_pushstring(L, tls_error(handle->tls));
|
jbe@260
|
811 return 2;
|
jbe@260
|
812 }
|
jbe@260
|
813 }
|
jbe@260
|
814 #endif
|
jbe@256
|
815 if (moonbr_io_handle_set_linger(L, handle, -1)) {
|
jbe@257
|
816 moonbr_io_prepare_errmsg();
|
jbe@256
|
817 close(handle->fd);
|
jbe@256
|
818 handle->fd = -1;
|
jbe@257
|
819 moonbr_io_return_prepared_errmsg();
|
jbe@256
|
820 }
|
jbe@129
|
821 } else {
|
jbe@129
|
822 handle->closed = 1;
|
jbe@83
|
823 }
|
jbe@94
|
824 if (handle->fd >= 0) {
|
jbe@94
|
825 if (close(handle->fd)) {
|
jbe@94
|
826 handle->fd = -1;
|
jbe@257
|
827 moonbr_io_return_errmsg();
|
jbe@94
|
828 }
|
jbe@104
|
829 handle->fd = -1;
|
jbe@83
|
830 }
|
jbe@83
|
831 lua_pushboolean(L, 1);
|
jbe@83
|
832 return 1;
|
jbe@84
|
833
|
jbe@83
|
834 }
|
jbe@83
|
835
|
jbe@94
|
836 static int moonbr_io_close(lua_State *L) {
|
jbe@261
|
837 return moonbr_io_close_impl(L, 0, 0);
|
jbe@94
|
838 }
|
jbe@94
|
839
|
jbe@84
|
840 static int moonbr_io_reset(lua_State *L) {
|
jbe@261
|
841 return moonbr_io_close_impl(L, 0, 1);
|
jbe@84
|
842 }
|
jbe@84
|
843
|
jbe@108
|
844 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
845 moonbr_io_handle_t *handle;
|
jbe@88
|
846 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
847 if (handle->fd >= 0) {
|
jbe@218
|
848 lua_pushcfunction(L, moonbr_io_reset);
|
jbe@88
|
849 lua_pushvalue(L, 1);
|
jbe@88
|
850 lua_pushinteger(L, 0);
|
jbe@88
|
851 lua_call(L, 2, 0);
|
jbe@88
|
852 }
|
jbe@246
|
853 #ifdef MOONBR_IO_USE_TLS
|
jbe@246
|
854 if (handle->tls) {
|
jbe@246
|
855 tls_free(handle->tls);
|
jbe@246
|
856 handle->tls = NULL;
|
jbe@246
|
857 }
|
jbe@246
|
858 if (handle->servertls) {
|
jbe@246
|
859 tls_free(handle->servertls);
|
jbe@246
|
860 handle->servertls = NULL;
|
jbe@246
|
861 }
|
jbe@246
|
862 #endif
|
jbe@88
|
863 return 0;
|
jbe@88
|
864 }
|
jbe@88
|
865
|
jbe@100
|
866 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
867 moonbr_io_handle_t *handle;
|
jbe@88
|
868 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
869 if (!handle->closed) {
|
jbe@100
|
870 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
871 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
872 lua_call(L, 1, 0);
|
jbe@88
|
873 }
|
jbe@88
|
874 }
|
jbe@88
|
875
|
jbe@208
|
876 static int moonbr_io_pushhandle_impl(lua_State *L) {
|
jbe@208
|
877 int *fd;
|
jbe@79
|
878 moonbr_io_handle_t *handle;
|
jbe@107
|
879 struct sockaddr addr;
|
jbe@107
|
880 socklen_t addrlen;
|
jbe@208
|
881 fd = lua_touserdata(L, 1);
|
jbe@79
|
882 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@208
|
883 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@107
|
884 addrlen = sizeof(addr);
|
jbe@208
|
885 if (getsockname(*fd, &addr, &addrlen)) {
|
jbe@107
|
886 if (errno != ENOTSOCK) {
|
jbe@257
|
887 moonbr_io_prepare_errmsg();
|
jbe@107
|
888 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
889 }
|
jbe@107
|
890 handle->issock = 0;
|
jbe@107
|
891 } else {
|
jbe@107
|
892 handle->issock = 1;
|
jbe@107
|
893 handle->addrfam = addr.sa_family;
|
jbe@107
|
894 }
|
jbe@94
|
895 handle->finished = 0;
|
jbe@94
|
896 handle->closed = 0;
|
jbe@81
|
897 handle->nonblocking = -1;
|
jbe@95
|
898 handle->nopush = -1;
|
jbe@85
|
899 handle->readerr = 0;
|
jbe@105
|
900 handle->readbufin = 0;
|
jbe@105
|
901 handle->readbufout = 0;
|
jbe@81
|
902 handle->writeerr = 0;
|
jbe@81
|
903 handle->writeleft = 0;
|
jbe@132
|
904 handle->flushedleft = 0;
|
jbe@83
|
905 handle->writeqin = 0;
|
jbe@83
|
906 handle->writeqout = 0;
|
jbe@81
|
907 handle->writeqoff = 0;
|
jbe@103
|
908 handle->writebufin = 0;
|
jbe@103
|
909 handle->writebufout = 0;
|
jbe@246
|
910 #ifdef MOONBR_IO_USE_TLS
|
jbe@246
|
911 handle->tls = NULL;
|
jbe@246
|
912 handle->servertls = NULL;
|
jbe@250
|
913 handle->tlshandshake = 0;
|
jbe@261
|
914 handle->tlsclosing = 0;
|
jbe@246
|
915 #endif
|
jbe@208
|
916 handle->fd = *fd; /* required for set_linger call */
|
jbe@256
|
917 if (moonbr_io_handle_set_linger(L, handle, 0)) {
|
jbe@257
|
918 moonbr_io_prepare_errmsg();
|
jbe@256
|
919 handle->fd = -1;
|
jbe@256
|
920 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@256
|
921 }
|
jbe@208
|
922 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@238
|
923 luaL_setmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
924 lua_newtable(L); // uservalue
|
jbe@81
|
925 lua_newtable(L);
|
jbe@103
|
926 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
927 lua_newtable(L); // public
|
jbe@107
|
928 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
929 struct sockaddr_in6 addr_in6;
|
jbe@107
|
930 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
931 const char *addrstr;
|
jbe@107
|
932 addrlen = sizeof(addr_in6);
|
jbe@208
|
933 if (getsockname(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@257
|
934 moonbr_io_prepare_errmsg();
|
jbe@107
|
935 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
936 }
|
jbe@107
|
937 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
938 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
939 }
|
jbe@107
|
940 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
941 if (!addrstr) {
|
jbe@257
|
942 moonbr_io_prepare_errmsg();
|
jbe@107
|
943 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
944 } else {
|
jbe@107
|
945 lua_pushstring(L, addrstr);
|
jbe@107
|
946 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
947 }
|
jbe@107
|
948 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
949 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
950 if (getpeername(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@257
|
951 moonbr_io_prepare_errmsg();
|
jbe@107
|
952 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
953 }
|
jbe@107
|
954 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
955 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
956 }
|
jbe@107
|
957 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
958 if (!addrstr) {
|
jbe@257
|
959 moonbr_io_prepare_errmsg();
|
jbe@107
|
960 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
961 } else {
|
jbe@107
|
962 lua_pushstring(L, addrstr);
|
jbe@107
|
963 lua_setfield(L, -2, "remote_ip6");
|
jbe@107
|
964 }
|
jbe@107
|
965 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
966 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
967 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
968 struct sockaddr_in addr_in;
|
jbe@107
|
969 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
970 const char *addrstr;
|
jbe@107
|
971 addrlen = sizeof(addr_in);
|
jbe@208
|
972 if (getsockname(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@257
|
973 moonbr_io_prepare_errmsg();
|
jbe@107
|
974 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
975 }
|
jbe@107
|
976 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
977 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
978 }
|
jbe@107
|
979 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
980 if (!addrstr) {
|
jbe@257
|
981 moonbr_io_prepare_errmsg();
|
jbe@107
|
982 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
983 } else {
|
jbe@107
|
984 lua_pushstring(L, addrstr);
|
jbe@107
|
985 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
986 }
|
jbe@107
|
987 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
988 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
989 if (getpeername(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@257
|
990 moonbr_io_prepare_errmsg();
|
jbe@107
|
991 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
992 }
|
jbe@107
|
993 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
994 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
995 }
|
jbe@107
|
996 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
997 if (!addrstr) {
|
jbe@257
|
998 moonbr_io_prepare_errmsg();
|
jbe@107
|
999 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
1000 } else {
|
jbe@107
|
1001 lua_pushstring(L, addrstr);
|
jbe@107
|
1002 lua_setfield(L, -2, "remote_ip4");
|
jbe@107
|
1003 }
|
jbe@107
|
1004 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
1005 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
1006 }
|
jbe@238
|
1007 luaL_setmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1008 lua_setfield(L, -2, "public");
|
jbe@79
|
1009 lua_setuservalue(L, -2);
|
jbe@208
|
1010 handle->fd = *fd;
|
jbe@208
|
1011 *fd = -1; /* closing is now handled by garbage collection */
|
jbe@208
|
1012 return 1;
|
jbe@208
|
1013 }
|
jbe@208
|
1014
|
jbe@208
|
1015 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@208
|
1016 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1017 lua_pushlightuserdata(L, &fd);
|
jbe@208
|
1018 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@251
|
1019 if (fd != -1) close(fd); // TODO: correct to close file descriptor here?
|
jbe@208
|
1020 lua_error(L);
|
jbe@208
|
1021 }
|
jbe@79
|
1022 }
|
jbe@79
|
1023
|
jbe@79
|
1024 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
1025 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
1026 luaL_checkany(L, 2);
|
jbe@79
|
1027 lua_getuservalue(L, 1);
|
jbe@79
|
1028 lua_getfield(L, -1, "public");
|
jbe@79
|
1029 lua_pushvalue(L, 2);
|
jbe@79
|
1030 lua_gettable(L, -2);
|
jbe@79
|
1031 return 1;
|
jbe@79
|
1032 }
|
jbe@79
|
1033
|
jbe@79
|
1034 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
1035 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
1036 luaL_checkany(L, 2);
|
jbe@205
|
1037 luaL_checkany(L, 3);
|
jbe@79
|
1038 lua_getuservalue(L, 1);
|
jbe@79
|
1039 lua_getfield(L, -1, "public");
|
jbe@79
|
1040 lua_pushvalue(L, 2);
|
jbe@79
|
1041 lua_pushvalue(L, 3);
|
jbe@79
|
1042 lua_settable(L, -3);
|
jbe@79
|
1043 return 0;
|
jbe@79
|
1044 }
|
jbe@79
|
1045
|
jbe@111
|
1046 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
1047 const char *path;
|
jbe@111
|
1048 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
1049 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
1050 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
1051 ) - 1; /* one byte for termination */
|
jbe@111
|
1052 int sock;
|
jbe@111
|
1053 path = luaL_checkstring(L, 1);
|
jbe@111
|
1054 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
1055 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
1056 sock = socket(
|
jbe@111
|
1057 PF_LOCAL,
|
jbe@111
|
1058 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
1059 0
|
jbe@111
|
1060 );
|
jbe@257
|
1061 if (sock < 0) moonbr_io_return_errmsg();
|
jbe@111
|
1062 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
1063 if (!nonblocking && errno == EINTR) {
|
jbe@257
|
1064 moonbr_io_prepare_errmsg();
|
jbe@111
|
1065 close(sock);
|
jbe@257
|
1066 moonbr_io_return_prepared_errmsg();
|
jbe@257
|
1067 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) moonbr_io_return_errmsg();
|
jbe@111
|
1068 }
|
jbe@111
|
1069 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
1070 return 1;
|
jbe@111
|
1071 }
|
jbe@111
|
1072
|
jbe@111
|
1073 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
1074 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
1075 }
|
jbe@111
|
1076
|
jbe@111
|
1077 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
1078 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
1079 }
|
jbe@111
|
1080
|
jbe@99
|
1081 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
1082 const char *host, *port;
|
jbe@98
|
1083 struct addrinfo hints = { 0, };
|
jbe@98
|
1084 struct addrinfo *res, *addrinfo;
|
jbe@98
|
1085 int errcode;
|
jbe@98
|
1086 int sock;
|
jbe@98
|
1087 host = luaL_checkstring(L, 1);
|
jbe@98
|
1088 port = luaL_checkstring(L, 2);
|
jbe@98
|
1089 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
1090 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
1091 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
1092 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
1093 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
1094 if (errcode) {
|
jbe@102
|
1095 freeaddrinfo(res);
|
jbe@98
|
1096 if (errcode == EAI_SYSTEM) {
|
jbe@257
|
1097 moonbr_io_prepare_errmsg();
|
jbe@98
|
1098 lua_pushnil(L);
|
jbe@98
|
1099 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
1100 } else {
|
jbe@98
|
1101 lua_pushnil(L);
|
jbe@98
|
1102 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
1103 }
|
jbe@98
|
1104 return 2;
|
jbe@98
|
1105 }
|
jbe@98
|
1106 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1107 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
1108 }
|
jbe@98
|
1109 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1110 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
1111 }
|
jbe@98
|
1112 addrinfo = res;
|
jbe@98
|
1113 moonbr_io_tcpconnect_found:
|
jbe@99
|
1114 sock = socket(
|
jbe@134
|
1115 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@99
|
1116 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
1117 addrinfo->ai_protocol
|
jbe@99
|
1118 );
|
jbe@98
|
1119 if (sock < 0) {
|
jbe@257
|
1120 moonbr_io_prepare_errmsg();
|
jbe@108
|
1121 freeaddrinfo(res);
|
jbe@257
|
1122 moonbr_io_return_prepared_errmsg();
|
jbe@98
|
1123 }
|
jbe@98
|
1124 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1125 freeaddrinfo(res);
|
jbe@99
|
1126 if (!nonblocking && errno == EINTR) {
|
jbe@257
|
1127 moonbr_io_prepare_errmsg();
|
jbe@99
|
1128 close(sock);
|
jbe@257
|
1129 moonbr_io_return_prepared_errmsg();
|
jbe@257
|
1130 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) moonbr_io_return_errmsg();
|
jbe@108
|
1131 } else {
|
jbe@108
|
1132 freeaddrinfo(res);
|
jbe@98
|
1133 }
|
jbe@107
|
1134 moonbr_io_pushhandle(L, sock);
|
jbe@98
|
1135 return 1;
|
jbe@98
|
1136 }
|
jbe@98
|
1137
|
jbe@99
|
1138 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
1139 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
1140 }
|
jbe@99
|
1141
|
jbe@99
|
1142 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
1143 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
1144 }
|
jbe@99
|
1145
|
jbe@112
|
1146 static int moonbr_io_locallisten(lua_State *L) {
|
jbe@112
|
1147 moonbr_io_listener_t *listener;
|
jbe@112
|
1148 const char *path;
|
jbe@118
|
1149 struct stat sb;
|
jbe@112
|
1150 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@112
|
1151 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@112
|
1152 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@112
|
1153 ) - 1; /* one byte for termination */
|
jbe@112
|
1154 int sock;
|
jbe@112
|
1155 path = luaL_checkstring(L, 1);
|
jbe@112
|
1156 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@112
|
1157 strcpy(sockaddr.sun_path, path);
|
jbe@118
|
1158 if (stat(path, &sb) == 0) {
|
jbe@118
|
1159 if (S_ISSOCK(sb.st_mode)) unlink(path);
|
jbe@118
|
1160 }
|
jbe@112
|
1161 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1162 listener->fd = -1;
|
jbe@112
|
1163 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@112
|
1164 sock = socket(
|
jbe@112
|
1165 PF_LOCAL,
|
jbe@112
|
1166 SOCK_STREAM | SOCK_CLOEXEC,
|
jbe@112
|
1167 0
|
jbe@112
|
1168 );
|
jbe@257
|
1169 if (sock < 0) moonbr_io_return_errmsg();
|
jbe@112
|
1170 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@257
|
1171 moonbr_io_prepare_errmsg();
|
jbe@112
|
1172 close(sock);
|
jbe@257
|
1173 moonbr_io_return_prepared_errmsg();
|
jbe@112
|
1174 }
|
jbe@112
|
1175 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@257
|
1176 moonbr_io_prepare_errmsg();
|
jbe@112
|
1177 close(sock);
|
jbe@257
|
1178 moonbr_io_return_prepared_errmsg();
|
jbe@112
|
1179 }
|
jbe@112
|
1180 listener->fd = sock;
|
jbe@118
|
1181 listener->addrfam = AF_LOCAL;
|
jbe@112
|
1182 listener->nonblocking = -1;
|
jbe@112
|
1183 return 1;
|
jbe@112
|
1184 }
|
jbe@112
|
1185
|
jbe@108
|
1186 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
1187 moonbr_io_listener_t *listener;
|
jbe@108
|
1188 const char *host, *port;
|
jbe@108
|
1189 struct addrinfo hints = { 0, };
|
jbe@108
|
1190 struct addrinfo *res, *addrinfo;
|
jbe@108
|
1191 int errcode;
|
jbe@108
|
1192 int sock;
|
jbe@108
|
1193 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
1194 port = luaL_checkstring(L, 2);
|
jbe@108
|
1195 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1196 listener->fd = -1;
|
jbe@108
|
1197 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1198 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
1199 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
1200 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
1201 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
1202 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
1203 if (errcode) {
|
jbe@108
|
1204 freeaddrinfo(res);
|
jbe@108
|
1205 if (errcode == EAI_SYSTEM) {
|
jbe@257
|
1206 moonbr_io_prepare_errmsg();
|
jbe@108
|
1207 lua_pushnil(L);
|
jbe@108
|
1208 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
1209 } else {
|
jbe@108
|
1210 lua_pushnil(L);
|
jbe@108
|
1211 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
1212 }
|
jbe@108
|
1213 return 2;
|
jbe@108
|
1214 }
|
jbe@108
|
1215 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1216 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1217 }
|
jbe@108
|
1218 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1219 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1220 }
|
jbe@108
|
1221 addrinfo = res;
|
jbe@108
|
1222 moonbr_io_tcpconnect_found:
|
jbe@118
|
1223 listener->addrfam = addrinfo->ai_family;
|
jbe@108
|
1224 sock = socket(
|
jbe@134
|
1225 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@108
|
1226 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
1227 addrinfo->ai_protocol
|
jbe@108
|
1228 );
|
jbe@108
|
1229 if (sock < 0) {
|
jbe@257
|
1230 moonbr_io_prepare_errmsg();
|
jbe@108
|
1231 freeaddrinfo(res);
|
jbe@257
|
1232 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1233 }
|
jbe@120
|
1234 {
|
jbe@120
|
1235 static const int reuseval = 1;
|
jbe@120
|
1236 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
|
jbe@257
|
1237 moonbr_io_prepare_errmsg();
|
jbe@120
|
1238 freeaddrinfo(res);
|
jbe@120
|
1239 close(sock);
|
jbe@120
|
1240 lua_pushnil(L);
|
jbe@120
|
1241 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
|
jbe@120
|
1242 return 2;
|
jbe@120
|
1243 }
|
jbe@120
|
1244 }
|
jbe@108
|
1245 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@257
|
1246 moonbr_io_prepare_errmsg();
|
jbe@108
|
1247 freeaddrinfo(res);
|
jbe@108
|
1248 close(sock);
|
jbe@257
|
1249 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1250 }
|
jbe@108
|
1251 freeaddrinfo(res);
|
jbe@108
|
1252 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@257
|
1253 moonbr_io_prepare_errmsg();
|
jbe@108
|
1254 close(sock);
|
jbe@257
|
1255 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1256 }
|
jbe@108
|
1257 listener->fd = sock;
|
jbe@108
|
1258 listener->nonblocking = -1;
|
jbe@108
|
1259 return 1;
|
jbe@108
|
1260 }
|
jbe@108
|
1261
|
jbe@108
|
1262 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
1263 moonbr_io_listener_t *listener;
|
jbe@108
|
1264 int fd;
|
jbe@108
|
1265 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1266 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
1267 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
1268 int flags;
|
jbe@108
|
1269 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
1270 if (flags == -1) {
|
jbe@257
|
1271 moonbr_io_prepare_errmsg();
|
jbe@108
|
1272 close(listener->fd);
|
jbe@108
|
1273 listener->fd = -1;
|
jbe@108
|
1274 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1275 }
|
jbe@108
|
1276 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
1277 else flags &= ~O_NONBLOCK;
|
jbe@108
|
1278 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@257
|
1279 moonbr_io_prepare_errmsg();
|
jbe@108
|
1280 close(listener->fd);
|
jbe@108
|
1281 listener->fd = -1;
|
jbe@108
|
1282 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1283 }
|
jbe@108
|
1284 listener->nonblocking = nonblocking;
|
jbe@108
|
1285 }
|
jbe@108
|
1286 while (1) {
|
jbe@214
|
1287 #if defined(__linux__) && !defined(_GNU_SOURCE)
|
jbe@215
|
1288 fd = accept(listener->fd, NULL, NULL);
|
jbe@214
|
1289 if (fd != -1) {
|
jbe@214
|
1290 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
jbe@257
|
1291 moonbr_io_prepare_errmsg();
|
jbe@214
|
1292 close(listener->fd);
|
jbe@214
|
1293 listener->fd = -1;
|
jbe@214
|
1294 close(fd);
|
jbe@214
|
1295 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@214
|
1296 }
|
jbe@214
|
1297 }
|
jbe@214
|
1298 #else
|
jbe@108
|
1299 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@214
|
1300 #endif
|
jbe@108
|
1301 if (fd < 0) {
|
jbe@108
|
1302 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
1303 lua_pushboolean(L, 0);
|
jbe@108
|
1304 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
1305 return 2;
|
jbe@257
|
1306 } else if (errno != EINTR) moonbr_io_return_errmsg();
|
jbe@108
|
1307 } else {
|
jbe@108
|
1308 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
1309 return 1;
|
jbe@108
|
1310 }
|
jbe@108
|
1311 }
|
jbe@108
|
1312 }
|
jbe@108
|
1313
|
jbe@108
|
1314 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
1315 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
1316 }
|
jbe@108
|
1317
|
jbe@108
|
1318 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
1319 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
1320 }
|
jbe@108
|
1321
|
jbe@108
|
1322 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
1323 moonbr_io_listener_t *listener;
|
jbe@118
|
1324 struct sockaddr_un addr;
|
jbe@118
|
1325 socklen_t addrlen;
|
jbe@118
|
1326 struct stat sb;
|
jbe@108
|
1327 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1328 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@118
|
1329 addrlen = sizeof(addr);
|
jbe@118
|
1330 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
|
jbe@108
|
1331 if (close(listener->fd)) {
|
jbe@257
|
1332 moonbr_io_prepare_errmsg();
|
jbe@108
|
1333 listener->fd = -1;
|
jbe@118
|
1334 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1335 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1336 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1337 }
|
jbe@118
|
1338 }
|
jbe@257
|
1339 moonbr_io_return_prepared_errmsg();
|
jbe@108
|
1340 }
|
jbe@108
|
1341 listener->fd = -1;
|
jbe@118
|
1342 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1343 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1344 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1345 }
|
jbe@118
|
1346 }
|
jbe@108
|
1347 lua_pushboolean(L, 1);
|
jbe@108
|
1348 return 1;
|
jbe@108
|
1349 }
|
jbe@108
|
1350
|
jbe@108
|
1351 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
1352 moonbr_io_listener_t *listener;
|
jbe@108
|
1353 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@117
|
1354 if (listener->fd >= 0) close(listener->fd);
|
jbe@108
|
1355 listener->fd = -1;
|
jbe@108
|
1356 return 0;
|
jbe@108
|
1357 }
|
jbe@108
|
1358
|
jbe@205
|
1359 static int moonbr_io_exec(lua_State *L) {
|
jbe@205
|
1360 char **argv;
|
jbe@205
|
1361 int i, argc;
|
jbe@205
|
1362 int sockin[2], sockout[2], sockerr[2];
|
jbe@205
|
1363 volatile int errorcond = 0;
|
jbe@213
|
1364 volatile char errmsgbuf[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG;
|
jbe@205
|
1365 moonbr_io_child_t *child;
|
jbe@205
|
1366 argc = lua_gettop(L);
|
jbe@205
|
1367 argv = lua_newuserdata(L, (argc + 1) * sizeof(char *));
|
jbe@205
|
1368 for (i=0; i<argc; i++) argv[i] = (char *)luaL_checkstring(L, i+1);
|
jbe@205
|
1369 argv[argc] = NULL;
|
jbe@208
|
1370 child = lua_newuserdata(L, sizeof(moonbr_io_child_t));
|
jbe@208
|
1371 child->pid = 0;
|
jbe@208
|
1372 lua_newtable(L);
|
jbe@208
|
1373 lua_setuservalue(L, -2);
|
jbe@238
|
1374 luaL_setmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@206
|
1375 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockin)) {
|
jbe@257
|
1376 moonbr_io_prepare_errmsg();
|
jbe@205
|
1377 lua_pushnil(L);
|
jbe@205
|
1378 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1379 return 2;
|
jbe@205
|
1380 }
|
jbe@206
|
1381 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockout)) {
|
jbe@257
|
1382 moonbr_io_prepare_errmsg();
|
jbe@205
|
1383 close(sockin[0]);
|
jbe@205
|
1384 close(sockin[1]);
|
jbe@205
|
1385 lua_pushnil(L);
|
jbe@205
|
1386 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1387 return 2;
|
jbe@205
|
1388 }
|
jbe@206
|
1389 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockerr)) {
|
jbe@257
|
1390 moonbr_io_prepare_errmsg();
|
jbe@205
|
1391 close(sockin[0]);
|
jbe@205
|
1392 close(sockin[1]);
|
jbe@205
|
1393 close(sockout[0]);
|
jbe@205
|
1394 close(sockout[1]);
|
jbe@205
|
1395 lua_pushnil(L);
|
jbe@205
|
1396 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1397 return 2;
|
jbe@205
|
1398 }
|
jbe@205
|
1399 child->pid = vfork();
|
jbe@205
|
1400 if (child->pid == -1) {
|
jbe@257
|
1401 moonbr_io_prepare_errmsg();
|
jbe@205
|
1402 close(sockin[0]);
|
jbe@205
|
1403 close(sockin[1]);
|
jbe@205
|
1404 close(sockout[0]);
|
jbe@205
|
1405 close(sockout[1]);
|
jbe@205
|
1406 close(sockerr[0]);
|
jbe@205
|
1407 close(sockerr[1]);
|
jbe@205
|
1408 lua_pushnil(L);
|
jbe@205
|
1409 lua_pushfstring(L, "Could not fork: %s", errmsg);
|
jbe@205
|
1410 return 2;
|
jbe@205
|
1411 }
|
jbe@205
|
1412 if (!child->pid) {
|
jbe@208
|
1413 if (dup2(sockin[1], 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1414 if (dup2(sockout[1], 1) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1415 if (dup2(sockerr[1], 2) == -1) goto moonbr_io_exec_error1;
|
jbe@232
|
1416 closefrom(3);
|
jbe@208
|
1417 if (fcntl(0, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1418 if (fcntl(1, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1419 if (fcntl(2, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@205
|
1420 if (execvp(argv[0], argv)) {
|
jbe@205
|
1421 errorcond = 2;
|
jbe@205
|
1422 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@205
|
1423 _exit(0);
|
jbe@205
|
1424 }
|
jbe@208
|
1425 moonbr_io_exec_error1:
|
jbe@206
|
1426 errorcond = 1;
|
jbe@206
|
1427 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@206
|
1428 _exit(0);
|
jbe@205
|
1429 }
|
jbe@205
|
1430 close(sockin[1]);
|
jbe@205
|
1431 close(sockout[1]);
|
jbe@205
|
1432 close(sockerr[1]);
|
jbe@205
|
1433 if (errorcond) {
|
jbe@205
|
1434 int status;
|
jbe@205
|
1435 close(sockin[0]);
|
jbe@205
|
1436 close(sockout[0]);
|
jbe@205
|
1437 close(sockerr[0]);
|
jbe@205
|
1438 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1439 if (errno != EINTR) {
|
jbe@257
|
1440 moonbr_io_prepare_errmsg();
|
jbe@205
|
1441 luaL_error(L, "Error in waitpid call after unsuccessful exec: %s", errmsg);
|
jbe@205
|
1442 }
|
jbe@205
|
1443 }
|
jbe@208
|
1444 child->pid = 0;
|
jbe@205
|
1445 lua_pushnil(L);
|
jbe@205
|
1446 if (errorcond == 2) lua_pushfstring(L, "Could not execute: %s", errmsgbuf);
|
jbe@205
|
1447 else lua_pushfstring(L, "Error in fork: %s", errmsgbuf);
|
jbe@205
|
1448 return 2;
|
jbe@205
|
1449 }
|
jbe@208
|
1450 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1451 lua_pushlightuserdata(L, &sockin[0]);
|
jbe@208
|
1452 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1453 if (sockin[0] != -1) close(sockin[0]);
|
jbe@208
|
1454 close(sockout[0]);
|
jbe@208
|
1455 close(sockerr[0]);
|
jbe@208
|
1456 goto moonbr_io_exec_error2;
|
jbe@208
|
1457 }
|
jbe@205
|
1458 lua_setfield(L, -2, "stdin");
|
jbe@208
|
1459 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1460 lua_pushlightuserdata(L, &sockout[0]);
|
jbe@208
|
1461 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1462 if (sockout[0] != -1) close(sockout[0]);
|
jbe@208
|
1463 close(sockerr[0]);
|
jbe@208
|
1464 goto moonbr_io_exec_error2;
|
jbe@208
|
1465 }
|
jbe@205
|
1466 lua_setfield(L, -2, "stdout");
|
jbe@208
|
1467 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1468 lua_pushlightuserdata(L, &sockerr[0]);
|
jbe@208
|
1469 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1470 if (sockerr[0] != -1) close(sockerr[0]);
|
jbe@208
|
1471 goto moonbr_io_exec_error2;
|
jbe@208
|
1472 }
|
jbe@205
|
1473 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1474 return 1;
|
jbe@208
|
1475 moonbr_io_exec_error2:
|
jbe@208
|
1476 {
|
jbe@208
|
1477 int status;
|
jbe@208
|
1478 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@208
|
1479 if (errno != EINTR) {
|
jbe@257
|
1480 moonbr_io_prepare_errmsg();
|
jbe@208
|
1481 luaL_error(L, "Error in waitpid call after error creating socket handles: %s", errmsg);
|
jbe@208
|
1482 }
|
jbe@208
|
1483 }
|
jbe@208
|
1484 }
|
jbe@208
|
1485 child->pid = 0;
|
jbe@208
|
1486 return lua_error(L);
|
jbe@205
|
1487 }
|
jbe@205
|
1488
|
jbe@205
|
1489 static int moonbr_io_childindex(lua_State *L) {
|
jbe@205
|
1490 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1491 luaL_checkany(L, 2);
|
jbe@205
|
1492 lua_getuservalue(L, 1);
|
jbe@205
|
1493 lua_pushvalue(L, 2);
|
jbe@205
|
1494 lua_gettable(L, -2);
|
jbe@205
|
1495 if (lua_isnil(L, -1)) {
|
jbe@205
|
1496 luaL_getmetatable(L, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1497 lua_pushvalue(L, 2);
|
jbe@205
|
1498 lua_gettable(L, -2);
|
jbe@205
|
1499 }
|
jbe@205
|
1500 return 1;
|
jbe@205
|
1501 }
|
jbe@205
|
1502
|
jbe@205
|
1503 static int moonbr_io_childnewindex(lua_State *L) {
|
jbe@205
|
1504 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1505 luaL_checkany(L, 2);
|
jbe@205
|
1506 luaL_checkany(L, 3);
|
jbe@205
|
1507 lua_getuservalue(L, 1);
|
jbe@205
|
1508 lua_pushvalue(L, 2);
|
jbe@205
|
1509 lua_pushvalue(L, 3);
|
jbe@205
|
1510 lua_settable(L, -3);
|
jbe@205
|
1511 return 0;
|
jbe@205
|
1512 }
|
jbe@205
|
1513
|
jbe@205
|
1514 static int moonbr_io_childgc(lua_State *L) {
|
jbe@205
|
1515 moonbr_io_child_t *child;
|
jbe@205
|
1516 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1517 if (child->pid) {
|
jbe@205
|
1518 int status;
|
jbe@205
|
1519 if (kill(child->pid, SIGKILL)) {
|
jbe@257
|
1520 moonbr_io_prepare_errmsg();
|
jbe@205
|
1521 luaL_error(L, "Error in kill call during garbage collection: %s", errmsg);
|
jbe@205
|
1522 }
|
jbe@205
|
1523 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1524 if (errno != EINTR) {
|
jbe@257
|
1525 moonbr_io_prepare_errmsg();
|
jbe@205
|
1526 luaL_error(L, "Error in waitpid call during garbage collection: %s", errmsg);
|
jbe@205
|
1527 }
|
jbe@205
|
1528 }
|
jbe@205
|
1529 }
|
jbe@205
|
1530 return 0;
|
jbe@205
|
1531 }
|
jbe@205
|
1532
|
jbe@205
|
1533 static int moonbr_io_kill(lua_State *L) {
|
jbe@205
|
1534 moonbr_io_child_t *child;
|
jbe@205
|
1535 int sig;
|
jbe@205
|
1536 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1537 sig = luaL_optinteger(L, 2, SIGTERM);
|
jbe@205
|
1538 if (!child->pid) luaL_error(L, "Attempt to kill an already collected child process");
|
jbe@205
|
1539 if (kill(child->pid, sig)) {
|
jbe@257
|
1540 moonbr_io_prepare_errmsg();
|
jbe@205
|
1541 luaL_error(L, "Error in kill call: %s", errmsg);
|
jbe@205
|
1542 }
|
jbe@205
|
1543 lua_settop(L, 1);
|
jbe@205
|
1544 return 1;
|
jbe@205
|
1545 }
|
jbe@205
|
1546
|
jbe@205
|
1547 static int moonbr_io_wait_impl(lua_State *L, int nonblocking) {
|
jbe@205
|
1548 moonbr_io_child_t *child;
|
jbe@205
|
1549 pid_t waitedpid;
|
jbe@205
|
1550 int status;
|
jbe@205
|
1551 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1552 if (!child->pid) luaL_error(L, "Attempt to wait for an already collected child process");
|
jbe@205
|
1553 while ((waitedpid = waitpid(child->pid, &status, nonblocking ? WNOHANG : 0)) == -1) {
|
jbe@205
|
1554 if (errno != EINTR) {
|
jbe@257
|
1555 moonbr_io_prepare_errmsg();
|
jbe@205
|
1556 luaL_error(L, "Error in waitpid call: %s", errmsg);
|
jbe@205
|
1557 }
|
jbe@205
|
1558 }
|
jbe@205
|
1559 if (!waitedpid) {
|
jbe@219
|
1560 lua_pushboolean(L, 0);
|
jbe@219
|
1561 lua_pushliteral(L, "Process is still running");
|
jbe@219
|
1562 return 2;
|
jbe@205
|
1563 } else {
|
jbe@205
|
1564 child->pid = 0;
|
jbe@205
|
1565 if (WIFEXITED(status)) {
|
jbe@205
|
1566 lua_pushinteger(L, WEXITSTATUS(status));
|
jbe@205
|
1567 } else if (WIFSIGNALED(status)) {
|
jbe@205
|
1568 lua_pushinteger(L, -WTERMSIG(status));
|
jbe@205
|
1569 } else {
|
jbe@205
|
1570 luaL_error(L, "Unexpected status value returned by waitpid call");
|
jbe@205
|
1571 }
|
jbe@219
|
1572 return 1;
|
jbe@205
|
1573 }
|
jbe@205
|
1574 }
|
jbe@205
|
1575
|
jbe@205
|
1576 static int moonbr_io_wait(lua_State *L) {
|
jbe@205
|
1577 return moonbr_io_wait_impl(L, 0);
|
jbe@205
|
1578 }
|
jbe@205
|
1579
|
jbe@205
|
1580 static int moonbr_io_wait_nb(lua_State *L) {
|
jbe@205
|
1581 return moonbr_io_wait_impl(L, 1);
|
jbe@205
|
1582 }
|
jbe@205
|
1583
|
jbe@205
|
1584 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1585 static int moonbr_io_wait_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@205
|
1586 #else
|
jbe@205
|
1587 static int moonbr_io_wait_cont(lua_State *L) {
|
jbe@205
|
1588 #endif
|
jbe@205
|
1589 #if !(LUA_VERSION_NUM >= 503)
|
jbe@205
|
1590 int ctx = 0;
|
jbe@205
|
1591 lua_getctx(L, &ctx);
|
jbe@205
|
1592 #endif
|
jbe@205
|
1593 while (1) {
|
jbe@205
|
1594 lua_pushcfunction(L, moonbr_io_wait_nb);
|
jbe@205
|
1595 lua_pushvalue(L, 1);
|
jbe@205
|
1596 lua_call(L, 1, 1);
|
jbe@205
|
1597 if (!lua_isnil(L, -1)) break;
|
jbe@205
|
1598 lua_pushvalue(L, 2);
|
jbe@205
|
1599 lua_callk(L, 0, 0, ctx, moonbr_io_wait_cont);
|
jbe@205
|
1600 }
|
jbe@205
|
1601 return 1;
|
jbe@205
|
1602 }
|
jbe@205
|
1603
|
jbe@205
|
1604 static int moonbr_io_wait_call(lua_State *L) {
|
jbe@205
|
1605 lua_settop(L, 2);
|
jbe@205
|
1606 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1607 return moonbr_io_wait_cont(L, 0, 0);
|
jbe@205
|
1608 #else
|
jbe@205
|
1609 return moonbr_io_wait_cont(L);
|
jbe@205
|
1610 #endif
|
jbe@205
|
1611 }
|
jbe@205
|
1612
|
jbe@205
|
1613 moonbr_io_yield_wrapper(moonbr_io_wait_yield, moonbr_io_wait_call);
|
jbe@205
|
1614
|
jbe@266
|
1615 static void moonbr_io_signalhandler(int sig) {
|
jbe@266
|
1616 int errno2 = errno;
|
jbe@266
|
1617 char buf[1] = {sig};
|
jbe@266
|
1618 write(moonbr_io_signalfd_write, buf, 1);
|
jbe@266
|
1619 errno = errno2;
|
jbe@266
|
1620 }
|
jbe@266
|
1621
|
jbe@266
|
1622 static int moonbr_io_signalsocket(lua_State *L) {
|
jbe@266
|
1623 int i, argc, sig;
|
jbe@266
|
1624 if (moonbr_io_signalfd_read < 0) {
|
jbe@266
|
1625 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, moonbr_io_signalfds)) {
|
jbe@266
|
1626 luaL_error(L, "Could not create socket pair for signal queueing");
|
jbe@266
|
1627 }
|
jbe@266
|
1628 }
|
jbe@266
|
1629 argc = lua_gettop(L);
|
jbe@266
|
1630 for (i=1; i<=argc; i++) {
|
jbe@266
|
1631 sig = luaL_checkinteger(L, i);
|
jbe@266
|
1632 errno = 0;
|
jbe@266
|
1633 signal(sig, moonbr_io_signalhandler);
|
jbe@266
|
1634 if (errno) luaL_error(L, "Could not install signal handler (invalid signal number?)");
|
jbe@266
|
1635 }
|
jbe@266
|
1636 lua_settop(L, 0);
|
jbe@266
|
1637 lua_getfield(L, LUA_REGISTRYINDEX, MOONBR_IO_SIGNALSOCKET_REGKEY);
|
jbe@266
|
1638 if (lua_isnil(L, -1)) {
|
jbe@266
|
1639 int fd = dup(moonbr_io_signalfd_read); /* TODO: determine how mooonbr_io_pushhandle acts in case of error */
|
jbe@266
|
1640 if (fd < 0) luaL_error(L, "Error in dup() system call");
|
jbe@266
|
1641 moonbr_io_pushhandle(L, fd);
|
jbe@266
|
1642 lua_pushvalue(L, -1);
|
jbe@266
|
1643 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_SIGNALSOCKET_REGKEY);
|
jbe@266
|
1644 }
|
jbe@266
|
1645 return 1;
|
jbe@266
|
1646 }
|
jbe@266
|
1647
|
jbe@266
|
1648 static int moonbr_io_getpid(lua_State *L) {
|
jbe@266
|
1649 lua_pushinteger(L, getpid());
|
jbe@266
|
1650 return 1;
|
jbe@266
|
1651 }
|
jbe@266
|
1652
|
jbe@250
|
1653 #ifdef MOONBR_IO_USE_TLS
|
jbe@258
|
1654
|
jbe@250
|
1655 #define moonbr_io_poll_tls() \
|
jbe@250
|
1656 if (!handle->tlshandshake) { \
|
jbe@250
|
1657 lua_pushboolean(L, 1); \
|
jbe@250
|
1658 return 1; \
|
jbe@250
|
1659 } \
|
jbe@250
|
1660 if (handle->tlshandshake == TLS_WANT_POLLIN) { \
|
jbe@250
|
1661 if (fd < 0) { \
|
jbe@250
|
1662 lua_pushboolean(L, 1); \
|
jbe@250
|
1663 return 1; \
|
jbe@250
|
1664 } \
|
jbe@250
|
1665 FD_SET(fd, &readfds); \
|
jbe@250
|
1666 if (fd+1 > nfds) nfds = fd+1; \
|
jbe@250
|
1667 continue; \
|
jbe@250
|
1668 } \
|
jbe@250
|
1669 if (handle->tlshandshake == TLS_WANT_POLLOUT) { \
|
jbe@250
|
1670 if (fd < 0) { \
|
jbe@250
|
1671 lua_pushboolean(L, 1); \
|
jbe@250
|
1672 return 1; \
|
jbe@250
|
1673 } \
|
jbe@250
|
1674 FD_SET(fd, &writefds); \
|
jbe@250
|
1675 if (fd+1 > nfds) nfds = fd+1; \
|
jbe@250
|
1676 continue; \
|
jbe@250
|
1677 } \
|
jbe@250
|
1678 while (0)
|
jbe@258
|
1679
|
jbe@258
|
1680 #endif /* MOONBR_IO_USE_TLS */
|
jbe@250
|
1681
|
jbe@106
|
1682 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
1683 moonbr_io_handle_t *handle;
|
jbe@108
|
1684 moonbr_io_listener_t *listener;
|
jbe@106
|
1685 int fd, isnum;
|
jbe@106
|
1686 int nfds = 0;
|
jbe@106
|
1687 fd_set readfds, writefds, exceptfds;
|
jbe@106
|
1688 struct timeval timeout = {0, };
|
jbe@106
|
1689 int status;
|
jbe@106
|
1690 FD_ZERO(&readfds);
|
jbe@106
|
1691 FD_ZERO(&writefds);
|
jbe@106
|
1692 FD_ZERO(&exceptfds);
|
jbe@106
|
1693 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
1694 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
1695 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
1696 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1697 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1698 if (handle) {
|
jbe@109
|
1699 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
1700 fd = handle->fd;
|
jbe@247
|
1701 #if MOONBR_IO_USE_TLS
|
jbe@250
|
1702 moonbr_io_poll_tls();
|
jbe@247
|
1703 #endif
|
jbe@122
|
1704 if (
|
jbe@122
|
1705 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
|
jbe@122
|
1706 handle->readbufin != handle->readbufout /* data pending in buffer */
|
jbe@122
|
1707 ) {
|
jbe@109
|
1708 lua_pushboolean(L, 1);
|
jbe@109
|
1709 return 1;
|
jbe@109
|
1710 }
|
jbe@106
|
1711 } else {
|
jbe@108
|
1712 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1713 if (listener) {
|
jbe@108
|
1714 fd = listener->fd;
|
jbe@108
|
1715 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
1716 } else {
|
jbe@108
|
1717 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@108
|
1718 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@108
|
1719 }
|
jbe@106
|
1720 }
|
jbe@138
|
1721 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1722 FD_SET(fd, &readfds);
|
jbe@106
|
1723 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1724 }
|
jbe@106
|
1725 }
|
jbe@106
|
1726 }
|
jbe@106
|
1727 if (!lua_isnoneornil(L, 2)) {
|
jbe@106
|
1728 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
1729 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
1730 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1731 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1732 if (handle) {
|
jbe@109
|
1733 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
1734 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
1735 fd = handle->fd;
|
jbe@247
|
1736 #if MOONBR_IO_USE_TLS
|
jbe@250
|
1737 moonbr_io_poll_tls();
|
jbe@247
|
1738 #endif
|
jbe@106
|
1739 } else {
|
jbe@108
|
1740 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
1741 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
1742 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
1743 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
1744 }
|
jbe@138
|
1745 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1746 FD_SET(fd, &writefds);
|
jbe@106
|
1747 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1748 }
|
jbe@106
|
1749 }
|
jbe@106
|
1750 }
|
jbe@106
|
1751 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
1752 lua_Number n;
|
jbe@106
|
1753 n = lua_tonumberx(L, 3, &isnum);
|
jbe@146
|
1754 if (isnum && n<0) {
|
jbe@146
|
1755 lua_pushboolean(L, 0);
|
jbe@146
|
1756 lua_pushliteral(L, "Negative timeout");
|
jbe@146
|
1757 return 2;
|
jbe@146
|
1758 } else if (isnum && n>=0 && n<100000000) {
|
jbe@106
|
1759 timeout.tv_sec = n;
|
jbe@106
|
1760 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
|
jbe@106
|
1761 } else {
|
jbe@106
|
1762 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
1763 }
|
jbe@106
|
1764 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
|
jbe@106
|
1765 } else {
|
jbe@106
|
1766 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
|
jbe@106
|
1767 }
|
jbe@106
|
1768 if (status == -1) {
|
jbe@106
|
1769 if (errno == EINTR) {
|
jbe@266
|
1770 lua_pushboolean(L, 1);
|
jbe@266
|
1771 return 1;
|
jbe@106
|
1772 } else {
|
jbe@257
|
1773 moonbr_io_prepare_errmsg();
|
jbe@106
|
1774 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@106
|
1775 }
|
jbe@106
|
1776 } else if (status == 0) {
|
jbe@106
|
1777 lua_pushboolean(L, 0);
|
jbe@106
|
1778 lua_pushliteral(L, "Timeout while polling file descriptors");
|
jbe@106
|
1779 return 2;
|
jbe@106
|
1780 } else {
|
jbe@106
|
1781 lua_pushboolean(L, 1);
|
jbe@106
|
1782 return 1;
|
jbe@106
|
1783 }
|
jbe@106
|
1784 }
|
jbe@106
|
1785
|
jbe@115
|
1786 static int moonbr_io_timeref(lua_State *L) {
|
jbe@115
|
1787 lua_Number sub;
|
jbe@115
|
1788 struct timespec tp;
|
jbe@115
|
1789 sub = luaL_optnumber(L, 1, 0);
|
jbe@115
|
1790 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
|
jbe@115
|
1791 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
|
jbe@115
|
1792 }
|
jbe@115
|
1793 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
|
jbe@115
|
1794 return 1;
|
jbe@115
|
1795 }
|
jbe@115
|
1796
|
jbe@243
|
1797 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
1798
|
jbe@243
|
1799 #define moonbr_io_tlsconf_string(name, field, func) \
|
jbe@243
|
1800 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
|
jbe@243
|
1801 lua_getfield(L, 1, (field)); \
|
jbe@243
|
1802 valuetype = lua_type(L, -1); \
|
jbe@243
|
1803 if (valuetype != LUA_TNIL) { \
|
jbe@243
|
1804 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
|
jbe@243
|
1805 value = lua_tostring(L, -1); \
|
jbe@252
|
1806 if (func(tlsconf->config, value)) { \
|
jbe@243
|
1807 lua_pushnil(L); \
|
jbe@243
|
1808 lua_pushfstring(L, "Could not set " name " \"%s\"", value); \
|
jbe@243
|
1809 return 2; \
|
jbe@243
|
1810 } \
|
jbe@243
|
1811 } \
|
jbe@243
|
1812 lua_pop(L, 1);
|
jbe@243
|
1813
|
jbe@243
|
1814 #define moonbr_io_tlsconf_binary(name, field, func) \
|
jbe@243
|
1815 /* NOTE: use valuetype = lua_getfield(...) for LUA_VERSION_NUM >= 503 */ \
|
jbe@243
|
1816 lua_getfield(L, 1, (field)); \
|
jbe@243
|
1817 valuetype = lua_type(L, -1); \
|
jbe@243
|
1818 if (valuetype != LUA_TNIL) { \
|
jbe@243
|
1819 luaL_argcheck(L, valuetype == LUA_TSTRING, 1, "field \"" field "\" is not a string"); \
|
jbe@243
|
1820 value = lua_tolstring(L, -1, &valuelen); \
|
jbe@252
|
1821 if (func(tlsconf->config, (void *)value, valuelen)) { \
|
jbe@243
|
1822 lua_pushnil(L); \
|
jbe@243
|
1823 lua_pushliteral(L, "Could not set " name); \
|
jbe@243
|
1824 return 2; \
|
jbe@243
|
1825 } \
|
jbe@243
|
1826 } \
|
jbe@243
|
1827 lua_pop(L, 1);
|
jbe@243
|
1828
|
jbe@243
|
1829 static int moonbr_io_tlsconf(lua_State *L) {
|
jbe@252
|
1830 moonbr_io_tlsconf_t *tlsconf;
|
jbe@243
|
1831 int valuetype;
|
jbe@243
|
1832 const char *value;
|
jbe@243
|
1833 size_t valuelen;
|
jbe@243
|
1834 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@252
|
1835 tlsconf = lua_newuserdata(L, sizeof(moonbr_io_tlsconf_t));
|
jbe@252
|
1836 tlsconf->config = tls_config_new();
|
jbe@252
|
1837 if (!tlsconf->config) {
|
jbe@243
|
1838 return luaL_error(L, "Could not allocate memory for TLS configuration");
|
jbe@243
|
1839 }
|
jbe@243
|
1840 luaL_setmetatable(L, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@245
|
1841 lua_getfield(L, 1, "mode");
|
jbe@252
|
1842 value = lua_tostring(L, -1);
|
jbe@252
|
1843 if (value && !strcmp(value, "server")) tlsconf->server = 1;
|
jbe@252
|
1844 else if (value && !strcmp(value, "client")) tlsconf->server = 0;
|
jbe@252
|
1845 else luaL_argcheck(L, 0, 1, "field \"mode\" must be set to \"server\" or \"client\"");
|
jbe@245
|
1846 lua_pop(L, 1);
|
jbe@243
|
1847 moonbr_io_tlsconf_string("CA file", "ca_file", tls_config_set_ca_file);
|
jbe@243
|
1848 moonbr_io_tlsconf_string("CA path", "ca_path", tls_config_set_ca_path);
|
jbe@243
|
1849 moonbr_io_tlsconf_binary("CA", "ca_mem", tls_config_set_ca_mem);
|
jbe@243
|
1850 moonbr_io_tlsconf_string("certificate file", "cert_file", tls_config_set_cert_file);
|
jbe@243
|
1851 moonbr_io_tlsconf_binary("certificate", "cert_mem", tls_config_set_cert_mem);
|
jbe@243
|
1852 moonbr_io_tlsconf_string("key file", "key_file", tls_config_set_key_file);
|
jbe@243
|
1853 moonbr_io_tlsconf_binary("key", "key_mem", tls_config_set_key_mem);
|
jbe@245
|
1854 #if LUA_VERSION_NUM >= 503
|
jbe@245
|
1855 valuetype = lua_getfield(L, 1, "verify_client");
|
jbe@245
|
1856 #else
|
jbe@244
|
1857 lua_getfield(L, 1, "verify_client");
|
jbe@245
|
1858 #endif
|
jbe@244
|
1859 if (lua_toboolean(L, -1)) {
|
jbe@252
|
1860 value = lua_tostring(L, -1);
|
jbe@252
|
1861 if (value && !strcmp(value, "required")) {
|
jbe@252
|
1862 tls_config_verify_client(tlsconf->config);
|
jbe@252
|
1863 } else if (value && !strcmp(value, "optional")) {
|
jbe@252
|
1864 tls_config_verify_client_optional(tlsconf->config);
|
jbe@244
|
1865 } else {
|
jbe@244
|
1866 luaL_argcheck(L, 0, 1, "field \"verify_client\" must be set to \"required\", \"optional\", or be false or nil");
|
jbe@244
|
1867 }
|
jbe@244
|
1868 }
|
jbe@244
|
1869 lua_pop(L, 1);
|
jbe@254
|
1870 // TODO: configurable legacy support
|
jbe@254
|
1871 // tls_config_set_protocols(tlsconf->config, TLS_PROTOCOLS_ALL);
|
jbe@254
|
1872 // tls_config_set_ciphers(tlsconf->config, "legacy");
|
jbe@243
|
1873 return 1;
|
jbe@243
|
1874 }
|
jbe@243
|
1875
|
jbe@252
|
1876 static int moonbr_io_tlsconfgc(lua_State *L) {
|
jbe@252
|
1877 moonbr_io_tlsconf_t *tlsconf;
|
jbe@243
|
1878 tlsconf = luaL_checkudata(L, 1, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@252
|
1879 if (tlsconf->config) tls_config_free(tlsconf->config);
|
jbe@252
|
1880 tlsconf->config = NULL;
|
jbe@243
|
1881 return 0;
|
jbe@243
|
1882 }
|
jbe@243
|
1883
|
jbe@246
|
1884 static int moonbr_io_starttls(lua_State *L) {
|
jbe@246
|
1885 moonbr_io_handle_t *handle;
|
jbe@252
|
1886 moonbr_io_tlsconf_t *tlsconf;
|
jbe@246
|
1887 const char *servername;
|
jbe@246
|
1888 struct tls *tls, *tls2;
|
jbe@246
|
1889 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@246
|
1890 if (lua_type(L, 2) == LUA_TTABLE) {
|
jbe@246
|
1891 lua_pushcfunction(L, moonbr_io_tlsconf);
|
jbe@246
|
1892 lua_pushvalue(L, 2);
|
jbe@246
|
1893 lua_call(L, 1, 2);
|
jbe@246
|
1894 if (lua_isnil(L, -2)) return 2;
|
jbe@246
|
1895 lua_pop(L, 1);
|
jbe@246
|
1896 lua_replace(L, 2);
|
jbe@246
|
1897 }
|
jbe@246
|
1898 tlsconf = luaL_checkudata(L, 2, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@246
|
1899 if (handle->closed) return luaL_error(L, "Attempt to start TLS on a closed I/O handle");
|
jbe@246
|
1900 if (handle->finished) return luaL_error(L, "Attempt to start TLS on a finished I/O handle");
|
jbe@247
|
1901 if (handle->tls) return luaL_error(L, "Attempt to start TLS twice");
|
jbe@246
|
1902 if (handle->readbufin || handle->writebufin) {
|
jbe@246
|
1903 return luaL_error(L, "Attempt to start TLS on an I/O handle with non-empty buffers");
|
jbe@246
|
1904 }
|
jbe@252
|
1905 if (tlsconf->server) tls = tls_server();
|
jbe@252
|
1906 else {
|
jbe@246
|
1907 servername = luaL_checkstring(L, 3);
|
jbe@246
|
1908 tls = tls_client();
|
jbe@246
|
1909 }
|
jbe@246
|
1910 if (!tls) {
|
jbe@246
|
1911 return luaL_error(L, "Could not allocate memory for TLS context");
|
jbe@246
|
1912 }
|
jbe@252
|
1913 if (tls_configure(tls, tlsconf->config)) goto moonbr_io_starttls_error;
|
jbe@252
|
1914 if (tlsconf->server) {
|
jbe@246
|
1915 if (tls_accept_socket(tls, &tls2, handle->fd)) goto moonbr_io_starttls_error;
|
jbe@246
|
1916 handle->servertls = tls;
|
jbe@246
|
1917 handle->tls = tls2;
|
jbe@246
|
1918 } else {
|
jbe@246
|
1919 if (tls_connect_socket(tls, handle->fd, servername)) goto moonbr_io_starttls_error;
|
jbe@246
|
1920 handle->tls = tls;
|
jbe@246
|
1921 }
|
jbe@246
|
1922 lua_settop(L, 1);
|
jbe@246
|
1923 return 1;
|
jbe@246
|
1924 moonbr_io_starttls_error:
|
jbe@246
|
1925 lua_pushnil(L);
|
jbe@246
|
1926 lua_pushstring(L, tls_error(tls));
|
jbe@246
|
1927 tls_free(tls);
|
jbe@246
|
1928 return 2;
|
jbe@246
|
1929 }
|
jbe@246
|
1930
|
jbe@258
|
1931 #endif /* MOONBR_IO_USE_TLS */
|
jbe@243
|
1932
|
jbe@79
|
1933 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
1934 {"read", moonbr_io_read},
|
jbe@85
|
1935 {"read_nb", moonbr_io_read_nb},
|
jbe@140
|
1936 {"read_call", moonbr_io_read_call},
|
jbe@140
|
1937 {"read_yield", moonbr_io_read_yield},
|
jbe@86
|
1938 {"drain", moonbr_io_drain},
|
jbe@86
|
1939 {"drain_nb", moonbr_io_drain_nb},
|
jbe@144
|
1940 {"drain_call", moonbr_io_drain_call},
|
jbe@144
|
1941 {"drain_yield", moonbr_io_drain_yield},
|
jbe@80
|
1942 {"write", moonbr_io_write},
|
jbe@81
|
1943 {"write_nb", moonbr_io_write_nb},
|
jbe@145
|
1944 {"write_call", moonbr_io_write_call},
|
jbe@145
|
1945 {"write_yield", moonbr_io_write_yield},
|
jbe@80
|
1946 {"flush", moonbr_io_flush},
|
jbe@81
|
1947 {"flush_nb", moonbr_io_flush_nb},
|
jbe@145
|
1948 {"flush_call", moonbr_io_flush_call},
|
jbe@145
|
1949 {"flush_yield", moonbr_io_flush_yield},
|
jbe@88
|
1950 {"finish", moonbr_io_finish},
|
jbe@87
|
1951 {"close", moonbr_io_close},
|
jbe@85
|
1952 {"reset", moonbr_io_reset},
|
jbe@246
|
1953 #ifdef MOONBR_IO_USE_TLS
|
jbe@246
|
1954 {"starttls", moonbr_io_starttls},
|
jbe@246
|
1955 #endif
|
jbe@79
|
1956 {NULL, NULL}
|
jbe@79
|
1957 };
|
jbe@79
|
1958
|
jbe@79
|
1959 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
1960 {"__index", moonbr_io_handleindex},
|
jbe@79
|
1961 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
1962 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
1963 {NULL, NULL}
|
jbe@108
|
1964 };
|
jbe@108
|
1965
|
jbe@108
|
1966 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
1967 {"accept", moonbr_io_accept},
|
jbe@108
|
1968 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
1969 {"close", moonbr_io_unlisten},
|
jbe@108
|
1970 {NULL, NULL}
|
jbe@108
|
1971 };
|
jbe@108
|
1972
|
jbe@108
|
1973 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
1974 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
1975 {NULL, NULL}
|
jbe@79
|
1976 };
|
jbe@79
|
1977
|
jbe@205
|
1978 static const struct luaL_Reg moonbr_io_child_methods[] = {
|
jbe@205
|
1979 {"kill", moonbr_io_kill},
|
jbe@205
|
1980 {"wait", moonbr_io_wait},
|
jbe@205
|
1981 {"wait_nb", moonbr_io_wait_nb},
|
jbe@205
|
1982 {"wait_call", moonbr_io_wait_call},
|
jbe@205
|
1983 {"wait_yield", moonbr_io_wait_yield},
|
jbe@205
|
1984 {NULL, NULL}
|
jbe@205
|
1985 };
|
jbe@205
|
1986
|
jbe@205
|
1987 static const struct luaL_Reg moonbr_io_child_metamethods[] = {
|
jbe@205
|
1988 {"__index", moonbr_io_childindex},
|
jbe@205
|
1989 {"__newindex", moonbr_io_childnewindex},
|
jbe@205
|
1990 {"__gc", moonbr_io_childgc},
|
jbe@205
|
1991 {NULL, NULL}
|
jbe@205
|
1992 };
|
jbe@205
|
1993
|
jbe@79
|
1994 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
1995 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
1996 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
1997 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
1998 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@112
|
1999 {"locallisten", moonbr_io_locallisten},
|
jbe@108
|
2000 {"tcplisten", moonbr_io_tcplisten},
|
jbe@205
|
2001 {"exec", moonbr_io_exec},
|
jbe@266
|
2002 {"signalsocket", moonbr_io_signalsocket},
|
jbe@266
|
2003 {"getpid", moonbr_io_getpid},
|
jbe@106
|
2004 {"poll", moonbr_io_poll},
|
jbe@115
|
2005 {"timeref", moonbr_io_timeref},
|
jbe@243
|
2006 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
2007 {"tlsconf", moonbr_io_tlsconf},
|
jbe@243
|
2008 #endif
|
jbe@79
|
2009 {NULL, NULL}
|
jbe@79
|
2010 };
|
jbe@79
|
2011
|
jbe@243
|
2012 #ifdef MOONBR_IO_USE_TLS
|
jbe@258
|
2013
|
jbe@243
|
2014 static const struct luaL_Reg moonbr_io_tlsconf_metamethods[] = {
|
jbe@243
|
2015 {"__gc", moonbr_io_tlsconfgc},
|
jbe@243
|
2016 {NULL, NULL}
|
jbe@243
|
2017 };
|
jbe@258
|
2018
|
jbe@258
|
2019 #endif /* MOONBR_IO_USE_TLS */
|
jbe@243
|
2020
|
jbe@79
|
2021 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
2022
|
jbe@113
|
2023 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
|
jbe@266
|
2024 moonbr_io_signalfd_read = -1;
|
jbe@266
|
2025 moonbr_io_signalfd_write = -1;
|
jbe@113
|
2026
|
jbe@80
|
2027 lua_newtable(L); // module
|
jbe@80
|
2028
|
jbe@79
|
2029 lua_newtable(L); // public metatable
|
jbe@79
|
2030 lua_newtable(L); // handle methods
|
jbe@79
|
2031 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
2032 lua_pushvalue(L, -1);
|
jbe@146
|
2033 lua_setfield(L, -4, "handle_pt");
|
jbe@79
|
2034 lua_setfield(L, -2, "__index");
|
jbe@79
|
2035 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
2036
|
jbe@79
|
2037 lua_newtable(L); // handle metatable
|
jbe@79
|
2038 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@146
|
2039 lua_pushvalue(L, -1);
|
jbe@146
|
2040 lua_setfield(L, -3, "handle_mt");
|
jbe@79
|
2041 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
2042
|
jbe@108
|
2043 lua_newtable(L); // listener metatable
|
jbe@108
|
2044 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
2045 lua_newtable(L); // listener methods
|
jbe@108
|
2046 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
2047 lua_pushvalue(L, -1);
|
jbe@146
|
2048 lua_setfield(L, -4, "listener_pt");
|
jbe@108
|
2049 lua_setfield(L, -2, "__index");
|
jbe@146
|
2050 lua_pushvalue(L, -1);
|
jbe@146
|
2051 lua_setfield(L, -3, "listener_mt");
|
jbe@108
|
2052 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
2053
|
jbe@205
|
2054 lua_newtable(L); // child methods
|
jbe@205
|
2055 luaL_setfuncs(L, moonbr_io_child_methods, 0);
|
jbe@205
|
2056 lua_pushvalue(L, -1);
|
jbe@205
|
2057 lua_setfield(L, -3, "child_pt");
|
jbe@205
|
2058 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
2059 lua_newtable(L); // child metatable
|
jbe@205
|
2060 luaL_setfuncs(L, moonbr_io_child_metamethods, 0);
|
jbe@205
|
2061 lua_pushvalue(L, -1);
|
jbe@205
|
2062 lua_setfield(L, -3, "child_mt");
|
jbe@205
|
2063 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
2064
|
jbe@243
|
2065 #ifdef MOONBR_IO_USE_TLS
|
jbe@243
|
2066 if(tls_init()) {
|
jbe@243
|
2067 return luaL_error(L, "Could not initialize TLS library");
|
jbe@243
|
2068 }
|
jbe@243
|
2069 lua_newtable(L); // tlsconf metatable
|
jbe@243
|
2070 luaL_setfuncs(L, moonbr_io_tlsconf_metamethods, 0);
|
jbe@243
|
2071 lua_pushvalue(L, -1);
|
jbe@243
|
2072 lua_setfield(L, -3, "tlsconf_mt");
|
jbe@243
|
2073 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_TLSCONF_MT_REGKEY);
|
jbe@243
|
2074 #endif
|
jbe@243
|
2075
|
jbe@205
|
2076 moonbr_io_pushhandle(L, 0);
|
jbe@205
|
2077 lua_setfield(L, -2, "stdin");
|
jbe@205
|
2078 moonbr_io_pushhandle(L, 1);
|
jbe@205
|
2079 lua_setfield(L, -2, "stdout");
|
jbe@205
|
2080 moonbr_io_pushhandle(L, 2);
|
jbe@205
|
2081 lua_setfield(L, -2, "stderr");
|
jbe@270
|
2082
|
jbe@270
|
2083 lua_newtable(L); // signal numbers
|
jbe@270
|
2084 lua_pushinteger(L, SIGHUP); lua_setfield(L, -2, "HUP");
|
jbe@270
|
2085 lua_pushinteger(L, SIGINT); lua_setfield(L, -2, "INT");
|
jbe@270
|
2086 lua_pushinteger(L, SIGQUIT); lua_setfield(L, -2, "QUIT");
|
jbe@270
|
2087 lua_pushinteger(L, SIGABRT); lua_setfield(L, -2, "ABRT");
|
jbe@270
|
2088 lua_pushinteger(L, SIGPIPE); lua_setfield(L, -2, "PIPE");
|
jbe@270
|
2089 lua_pushinteger(L, SIGALRM); lua_setfield(L, -2, "ALRM");
|
jbe@270
|
2090 lua_pushinteger(L, SIGTERM); lua_setfield(L, -2, "TERM");
|
jbe@270
|
2091 lua_pushinteger(L, SIGTSTP); lua_setfield(L, -2, "TSTP");
|
jbe@270
|
2092 lua_pushinteger(L, SIGCONT); lua_setfield(L, -2, "CONT");
|
jbe@270
|
2093 lua_pushinteger(L, SIGVTALRM); lua_setfield(L, -2, "VTALRM");
|
jbe@270
|
2094 lua_pushinteger(L, SIGINFO); lua_setfield(L, -2, "INFO");
|
jbe@270
|
2095 lua_pushinteger(L, SIGUSR1); lua_setfield(L, -2, "USR1");
|
jbe@270
|
2096 lua_pushinteger(L, SIGUSR2); lua_setfield(L, -2, "USR2");
|
jbe@270
|
2097 lua_setfield(L, -2, "signals");
|
jbe@205
|
2098
|
jbe@79
|
2099 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
2100 return 1;
|
jbe@79
|
2101
|
jbe@79
|
2102 }
|
jbe@79
|
2103
|