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util-src/pposix.c @ 7634:b1132d74f54c
net.http.parser: Fix missing buffer length adjustment when parsing chunked streams
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 26 Aug 2016 16:39:04 +0200 |
parent | 7440:5424e24cdcb1 |
child | 7789:93dd90309779 |
rev | line source |
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1 /* Prosody IM |
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- Copyright (C) 2009 Tobias Markmann |
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5 -- |
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6 -- This project is MIT/X11 licensed. Please see the |
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7 -- COPYING file in the source package for more information. |
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8 -- |
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9 */ |
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10 |
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11 /* |
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12 * pposix.c |
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13 * POSIX support functions for Lua |
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14 */ |
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15 |
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16 #define MODULE_VERSION "0.3.6" |
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17 |
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18 #include <stdlib.h> |
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19 #include <math.h> |
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20 #include <unistd.h> |
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21 #include <libgen.h> |
859 | 22 #include <sys/resource.h> |
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23 #include <sys/types.h> |
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24 #include <sys/stat.h> |
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25 #include <sys/utsname.h> |
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26 #include <fcntl.h> |
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27 |
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28 #include <syslog.h> |
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29 #include <pwd.h> |
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30 #include <grp.h> |
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31 |
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32 #include <string.h> |
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33 #include <errno.h> |
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34 #include "lua.h" |
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35 #include "lualib.h" |
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36 #include "lauxlib.h" |
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37 |
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38 #if (LUA_VERSION_NUM == 501) |
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39 #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R) |
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40 #endif |
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41 |
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42 #include <fcntl.h> |
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43 #if defined(__linux__) && defined(_GNU_SOURCE) |
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44 #include <linux/falloc.h> |
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45 #endif |
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46 |
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47 #if (defined(_SVID_SOURCE) && !defined(WITHOUT_MALLINFO)) |
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48 #include <malloc.h> |
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49 #define WITH_MALLINFO |
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50 #endif |
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51 |
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52 #if defined(RFPROC) && defined(EV_SET) |
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53 /* |
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54 * On *BSD, calling fork() is equivalent to rfork(RFPROC | RFFDG). |
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55 * |
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56 * RFFDG being set means that the file descriptor table is copied, |
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57 * otherwise it's shared. We want the later, otherwise libevent gets |
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58 * messed up. |
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59 * |
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60 * See issue #412 |
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61 */ |
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62 #define fork() rfork(RFPROC) |
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63 #endif |
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64 |
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65 /* Daemonization support */ |
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66 |
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67 static int lc_daemonize(lua_State* L) { |
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68 |
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69 pid_t pid; |
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70 |
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71 if(getppid() == 1) { |
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72 lua_pushboolean(L, 0); |
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73 lua_pushstring(L, "already-daemonized"); |
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74 return 2; |
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75 } |
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76 |
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77 /* Attempt initial fork */ |
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78 if((pid = fork()) < 0) { |
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79 /* Forking failed */ |
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80 lua_pushboolean(L, 0); |
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81 lua_pushstring(L, "fork-failed"); |
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82 return 2; |
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83 } else if(pid != 0) { |
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84 /* We are the parent process */ |
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85 lua_pushboolean(L, 1); |
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86 lua_pushnumber(L, pid); |
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87 return 2; |
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88 } |
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89 |
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90 /* and we are the child process */ |
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91 if(setsid() == -1) { |
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92 /* We failed to become session leader */ |
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93 /* (we probably already were) */ |
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94 lua_pushboolean(L, 0); |
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95 lua_pushstring(L, "setsid-failed"); |
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96 return 2; |
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97 } |
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98 |
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99 /* Close stdin, stdout, stderr */ |
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100 close(0); |
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101 close(1); |
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102 close(2); |
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103 /* Make sure accidental use of FDs 0, 1, 2 don't cause weirdness */ |
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104 open("/dev/null", O_RDONLY); |
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105 open("/dev/null", O_WRONLY); |
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106 open("/dev/null", O_WRONLY); |
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107 |
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108 /* Final fork, use it wisely */ |
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109 if(fork()) { |
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110 exit(0); |
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111 } |
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112 |
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113 /* Show's over, let's continue */ |
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114 lua_pushboolean(L, 1); |
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115 lua_pushnil(L); |
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116 return 2; |
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117 } |
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118 |
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119 /* Syslog support */ |
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120 |
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121 const char* const facility_strings[] = { |
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122 "auth", |
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123 #if !(defined(sun) || defined(__sun)) |
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124 "authpriv", |
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125 #endif |
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126 "cron", |
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127 "daemon", |
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128 #if !(defined(sun) || defined(__sun)) |
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129 "ftp", |
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130 #endif |
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131 "kern", |
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132 "local0", |
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133 "local1", |
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134 "local2", |
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135 "local3", |
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136 "local4", |
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137 "local5", |
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138 "local6", |
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139 "local7", |
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140 "lpr", |
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141 "mail", |
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142 "syslog", |
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143 "user", |
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144 "uucp", |
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145 NULL |
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146 }; |
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147 int facility_constants[] = { |
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148 LOG_AUTH, |
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149 #if !(defined(sun) || defined(__sun)) |
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150 LOG_AUTHPRIV, |
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151 #endif |
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152 LOG_CRON, |
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153 LOG_DAEMON, |
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154 #if !(defined(sun) || defined(__sun)) |
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155 LOG_FTP, |
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156 #endif |
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157 LOG_KERN, |
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158 LOG_LOCAL0, |
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159 LOG_LOCAL1, |
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160 LOG_LOCAL2, |
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161 LOG_LOCAL3, |
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162 LOG_LOCAL4, |
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163 LOG_LOCAL5, |
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164 LOG_LOCAL6, |
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165 LOG_LOCAL7, |
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166 LOG_LPR, |
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167 LOG_MAIL, |
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168 LOG_NEWS, |
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169 LOG_SYSLOG, |
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170 LOG_USER, |
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171 LOG_UUCP, |
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172 -1 |
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173 }; |
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174 |
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175 /* " |
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176 The parameter ident in the call of openlog() is probably stored as-is. |
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177 Thus, if the string it points to is changed, syslog() may start |
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178 prepending the changed string, and if the string it points to ceases to |
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179 exist, the results are undefined. Most portable is to use a string |
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180 constant. |
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181 " -- syslog manpage |
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182 */ |
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183 char* syslog_ident = NULL; |
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184 |
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185 int lc_syslog_open(lua_State* L) { |
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186 int facility = luaL_checkoption(L, 2, "daemon", facility_strings); |
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187 facility = facility_constants[facility]; |
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188 |
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189 luaL_checkstring(L, 1); |
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190 |
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191 if(syslog_ident) { |
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192 free(syslog_ident); |
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193 } |
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194 |
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195 syslog_ident = strdup(lua_tostring(L, 1)); |
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196 |
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197 openlog(syslog_ident, LOG_PID, facility); |
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198 return 0; |
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199 } |
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200 |
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201 const char* const level_strings[] = { |
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202 "debug", |
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203 "info", |
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204 "notice", |
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205 "warn", |
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206 "error", |
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207 NULL |
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208 }; |
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209 int level_constants[] = { |
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210 LOG_DEBUG, |
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211 LOG_INFO, |
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212 LOG_NOTICE, |
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213 LOG_WARNING, |
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214 LOG_CRIT, |
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215 -1 |
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216 }; |
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217 int lc_syslog_log(lua_State* L) { |
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218 int level = level_constants[luaL_checkoption(L, 1, "notice", level_strings)]; |
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219 |
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220 if(lua_gettop(L) == 3) { |
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221 syslog(level, "%s: %s", luaL_checkstring(L, 2), luaL_checkstring(L, 3)); |
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222 } else { |
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223 syslog(level, "%s", lua_tostring(L, 2)); |
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224 } |
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225 |
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226 return 0; |
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227 } |
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228 |
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229 int lc_syslog_close(lua_State* L) { |
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230 closelog(); |
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231 |
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232 if(syslog_ident) { |
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233 free(syslog_ident); |
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234 syslog_ident = NULL; |
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235 } |
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236 |
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237 return 0; |
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238 } |
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239 |
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240 int lc_syslog_setmask(lua_State* L) { |
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241 int level_idx = luaL_checkoption(L, 1, "notice", level_strings); |
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242 int mask = 0; |
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243 |
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244 do { |
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245 mask |= LOG_MASK(level_constants[level_idx]); |
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246 } while(++level_idx <= 4); |
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247 |
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248 setlogmask(mask); |
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249 return 0; |
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250 } |
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251 |
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252 /* getpid */ |
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253 |
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254 int lc_getpid(lua_State* L) { |
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255 lua_pushinteger(L, getpid()); |
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256 return 1; |
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257 } |
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258 |
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259 /* UID/GID functions */ |
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260 |
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261 int lc_getuid(lua_State* L) { |
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262 lua_pushinteger(L, getuid()); |
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263 return 1; |
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264 } |
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265 |
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266 int lc_getgid(lua_State* L) { |
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267 lua_pushinteger(L, getgid()); |
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268 return 1; |
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269 } |
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270 |
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271 int lc_setuid(lua_State* L) { |
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272 int uid = -1; |
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273 |
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274 if(lua_gettop(L) < 1) { |
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275 return 0; |
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276 } |
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277 |
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278 if(!lua_isnumber(L, 1) && lua_tostring(L, 1)) { |
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279 /* Passed UID is actually a string, so look up the UID */ |
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280 struct passwd* p; |
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281 p = getpwnam(lua_tostring(L, 1)); |
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282 |
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283 if(!p) { |
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284 lua_pushboolean(L, 0); |
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285 lua_pushstring(L, "no-such-user"); |
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286 return 2; |
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287 } |
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288 |
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289 uid = p->pw_uid; |
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290 } else { |
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291 uid = lua_tonumber(L, 1); |
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292 } |
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293 |
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294 if(uid > -1) { |
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295 /* Ok, attempt setuid */ |
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296 errno = 0; |
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297 |
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298 if(setuid(uid)) { |
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299 /* Fail */ |
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300 lua_pushboolean(L, 0); |
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301 |
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302 switch(errno) { |
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303 case EINVAL: |
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304 lua_pushstring(L, "invalid-uid"); |
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305 break; |
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306 case EPERM: |
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307 lua_pushstring(L, "permission-denied"); |
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308 break; |
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309 default: |
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310 lua_pushstring(L, "unknown-error"); |
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311 } |
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312 |
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313 return 2; |
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314 } else { |
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315 /* Success! */ |
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316 lua_pushboolean(L, 1); |
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317 return 1; |
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318 } |
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319 } |
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320 |
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321 /* Seems we couldn't find a valid UID to switch to */ |
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322 lua_pushboolean(L, 0); |
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323 lua_pushstring(L, "invalid-uid"); |
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324 return 2; |
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325 } |
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326 |
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327 int lc_setgid(lua_State* L) { |
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328 int gid = -1; |
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329 |
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330 if(lua_gettop(L) < 1) { |
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331 return 0; |
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332 } |
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333 |
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334 if(!lua_isnumber(L, 1) && lua_tostring(L, 1)) { |
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335 /* Passed GID is actually a string, so look up the GID */ |
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336 struct group* g; |
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337 g = getgrnam(lua_tostring(L, 1)); |
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338 |
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339 if(!g) { |
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340 lua_pushboolean(L, 0); |
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341 lua_pushstring(L, "no-such-group"); |
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342 return 2; |
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343 } |
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344 |
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345 gid = g->gr_gid; |
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346 } else { |
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347 gid = lua_tonumber(L, 1); |
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348 } |
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349 |
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350 if(gid > -1) { |
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351 /* Ok, attempt setgid */ |
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352 errno = 0; |
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353 |
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354 if(setgid(gid)) { |
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355 /* Fail */ |
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356 lua_pushboolean(L, 0); |
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357 |
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358 switch(errno) { |
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359 case EINVAL: |
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360 lua_pushstring(L, "invalid-gid"); |
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361 break; |
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362 case EPERM: |
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363 lua_pushstring(L, "permission-denied"); |
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364 break; |
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365 default: |
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366 lua_pushstring(L, "unknown-error"); |
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367 } |
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368 |
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369 return 2; |
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370 } else { |
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371 /* Success! */ |
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372 lua_pushboolean(L, 1); |
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373 return 1; |
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374 } |
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375 } |
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376 |
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377 /* Seems we couldn't find a valid GID to switch to */ |
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378 lua_pushboolean(L, 0); |
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379 lua_pushstring(L, "invalid-gid"); |
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380 return 2; |
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381 } |
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382 |
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383 int lc_initgroups(lua_State* L) { |
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384 int ret; |
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385 gid_t gid; |
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386 struct passwd* p; |
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387 |
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388 if(!lua_isstring(L, 1)) { |
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389 lua_pushnil(L); |
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390 lua_pushstring(L, "invalid-username"); |
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391 return 2; |
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392 } |
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393 |
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394 p = getpwnam(lua_tostring(L, 1)); |
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395 |
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396 if(!p) { |
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397 lua_pushnil(L); |
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398 lua_pushstring(L, "no-such-user"); |
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399 return 2; |
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400 } |
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401 |
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402 if(lua_gettop(L) < 2) { |
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403 lua_pushnil(L); |
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404 } |
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405 |
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406 switch(lua_type(L, 2)) { |
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407 case LUA_TNIL: |
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408 gid = p->pw_gid; |
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409 break; |
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410 case LUA_TNUMBER: |
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411 gid = lua_tointeger(L, 2); |
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412 break; |
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413 default: |
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414 lua_pushnil(L); |
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415 lua_pushstring(L, "invalid-gid"); |
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416 return 2; |
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417 } |
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418 |
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419 ret = initgroups(lua_tostring(L, 1), gid); |
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420 |
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421 if(ret) { |
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422 switch(errno) { |
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423 case ENOMEM: |
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424 lua_pushnil(L); |
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425 lua_pushstring(L, "no-memory"); |
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426 break; |
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427 case EPERM: |
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428 lua_pushnil(L); |
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429 lua_pushstring(L, "permission-denied"); |
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430 break; |
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431 default: |
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432 lua_pushnil(L); |
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433 lua_pushstring(L, "unknown-error"); |
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434 } |
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435 } else { |
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436 lua_pushboolean(L, 1); |
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437 lua_pushnil(L); |
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438 } |
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439 |
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440 return 2; |
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441 } |
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442 |
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443 int lc_umask(lua_State* L) { |
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444 char old_mode_string[7]; |
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445 mode_t old_mode = umask(strtoul(luaL_checkstring(L, 1), NULL, 8)); |
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446 |
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447 snprintf(old_mode_string, sizeof(old_mode_string), "%03o", old_mode); |
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448 old_mode_string[sizeof(old_mode_string) - 1] = 0; |
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449 lua_pushstring(L, old_mode_string); |
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450 |
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451 return 1; |
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452 } |
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453 |
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454 int lc_mkdir(lua_State* L) { |
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455 int ret = mkdir(luaL_checkstring(L, 1), S_IRUSR | S_IWUSR | S_IXUSR |
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456 | S_IRGRP | S_IWGRP | S_IXGRP |
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457 | S_IROTH | S_IXOTH); /* mode 775 */ |
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458 |
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459 lua_pushboolean(L, ret == 0); |
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460 |
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461 if(ret) { |
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462 lua_pushstring(L, strerror(errno)); |
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463 return 2; |
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464 } |
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465 |
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466 return 1; |
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467 } |
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468 |
859 | 469 /* Like POSIX's setrlimit()/getrlimit() API functions. |
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470 * |
859 | 471 * Syntax: |
472 * pposix.setrlimit( resource, soft limit, hard limit) | |
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473 * |
859 | 474 * Any negative limit will be replace with the current limit by an additional call of getrlimit(). |
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475 * |
859 | 476 * Example usage: |
477 * pposix.setrlimit("NOFILE", 1000, 2000) | |
478 */ | |
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479 int string2resource(const char* s) { |
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480 if(!strcmp(s, "CORE")) { |
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481 return RLIMIT_CORE; |
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482 } |
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483 |
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484 if(!strcmp(s, "CPU")) { |
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485 return RLIMIT_CPU; |
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486 } |
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487 |
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488 if(!strcmp(s, "DATA")) { |
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489 return RLIMIT_DATA; |
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490 } |
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491 |
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492 if(!strcmp(s, "FSIZE")) { |
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493 return RLIMIT_FSIZE; |
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494 } |
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495 |
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496 if(!strcmp(s, "NOFILE")) { |
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497 return RLIMIT_NOFILE; |
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498 } |
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499 |
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500 if(!strcmp(s, "STACK")) { |
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501 return RLIMIT_STACK; |
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502 } |
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503 |
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504 #if !(defined(sun) || defined(__sun)) |
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505 |
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506 if(!strcmp(s, "MEMLOCK")) { |
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507 return RLIMIT_MEMLOCK; |
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508 } |
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509 |
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510 if(!strcmp(s, "NPROC")) { |
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511 return RLIMIT_NPROC; |
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512 } |
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513 |
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514 if(!strcmp(s, "RSS")) { |
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515 return RLIMIT_RSS; |
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516 } |
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517 |
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518 #endif |
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519 #ifdef RLIMIT_NICE |
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520 |
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521 if(!strcmp(s, "NICE")) { |
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522 return RLIMIT_NICE; |
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523 } |
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524 |
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525 #endif |
859 | 526 return -1; |
527 } | |
528 | |
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529 unsigned long int arg_to_rlimit(lua_State* L, int idx, rlim_t current) { |
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530 switch(lua_type(L, idx)) { |
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531 case LUA_TSTRING: |
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532 |
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533 if(strcmp(lua_tostring(L, idx), "unlimited") == 0) { |
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534 return RLIM_INFINITY; |
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535 } |
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536 |
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537 case LUA_TNUMBER: |
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538 return lua_tointeger(L, idx); |
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539 case LUA_TNONE: |
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540 case LUA_TNIL: |
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541 return current; |
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542 default: |
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543 return luaL_argerror(L, idx, "unexpected type"); |
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544 } |
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545 } |
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546 |
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547 int lc_setrlimit(lua_State* L) { |
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548 struct rlimit lim; |
859 | 549 int arguments = lua_gettop(L); |
550 int rid = -1; | |
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551 |
859 | 552 if(arguments < 1 || arguments > 3) { |
553 lua_pushboolean(L, 0); | |
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554 lua_pushstring(L, "incorrect-arguments"); |
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555 return 2; |
859 | 556 } |
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557 |
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558 rid = string2resource(luaL_checkstring(L, 1)); |
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559 |
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560 if(rid == -1) { |
859 | 561 lua_pushboolean(L, 0); |
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562 lua_pushstring(L, "invalid-resource"); |
859 | 563 return 2; |
564 } | |
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565 |
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566 /* Fetch current values to use as defaults */ |
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567 if(getrlimit(rid, &lim)) { |
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568 lua_pushboolean(L, 0); |
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569 lua_pushstring(L, "getrlimit-failed"); |
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570 return 2; |
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571 } |
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572 |
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573 lim.rlim_cur = arg_to_rlimit(L, 2, lim.rlim_cur); |
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574 lim.rlim_max = arg_to_rlimit(L, 3, lim.rlim_max); |
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575 |
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576 if(setrlimit(rid, &lim)) { |
859 | 577 lua_pushboolean(L, 0); |
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578 lua_pushstring(L, "setrlimit-failed"); |
859 | 579 return 2; |
580 } | |
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581 |
859 | 582 lua_pushboolean(L, 1); |
583 return 1; | |
584 } | |
585 | |
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586 int lc_getrlimit(lua_State* L) { |
860 | 587 int arguments = lua_gettop(L); |
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588 const char* resource = NULL; |
860 | 589 int rid = -1; |
861
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590 struct rlimit lim; |
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591 |
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592 if(arguments != 1) { |
860 | 593 lua_pushboolean(L, 0); |
865
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594 lua_pushstring(L, "invalid-arguments"); |
860 | 595 return 2; |
596 } | |
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597 |
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598 |
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599 |
860 | 600 resource = luaL_checkstring(L, 1); |
601 rid = string2resource(resource); | |
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602 |
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603 if(rid != -1) { |
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604 if(getrlimit(rid, &lim)) { |
860 | 605 lua_pushboolean(L, 0); |
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606 lua_pushstring(L, "getrlimit-failed."); |
860 | 607 return 2; |
608 } | |
609 } else { | |
865
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610 /* Unsupported resoucrce. Sorry I'm pretty limited by POSIX standard. */ |
860 | 611 lua_pushboolean(L, 0); |
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612 lua_pushstring(L, "invalid-resource"); |
860 | 613 return 2; |
614 } | |
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615 |
860 | 616 lua_pushboolean(L, 1); |
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617 |
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618 if(lim.rlim_cur == RLIM_INFINITY) { |
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619 lua_pushstring(L, "unlimited"); |
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620 } else { |
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621 lua_pushnumber(L, lim.rlim_cur); |
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622 } |
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623 |
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624 if(lim.rlim_max == RLIM_INFINITY) { |
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625 lua_pushstring(L, "unlimited"); |
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626 } else { |
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627 lua_pushnumber(L, lim.rlim_max); |
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628 } |
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629 |
860 | 630 return 3; |
859 | 631 } |
632 | |
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633 int lc_abort(lua_State* L) { |
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634 abort(); |
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635 return 0; |
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636 } |
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637 |
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638 int lc_uname(lua_State* L) { |
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639 struct utsname uname_info; |
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640 |
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641 if(uname(&uname_info) != 0) { |
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642 lua_pushnil(L); |
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643 lua_pushstring(L, strerror(errno)); |
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644 return 2; |
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645 } |
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646 |
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647 lua_newtable(L); |
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648 lua_pushstring(L, uname_info.sysname); |
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649 lua_setfield(L, -2, "sysname"); |
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650 lua_pushstring(L, uname_info.nodename); |
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651 lua_setfield(L, -2, "nodename"); |
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652 lua_pushstring(L, uname_info.release); |
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653 lua_setfield(L, -2, "release"); |
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654 lua_pushstring(L, uname_info.version); |
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655 lua_setfield(L, -2, "version"); |
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656 lua_pushstring(L, uname_info.machine); |
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657 lua_setfield(L, -2, "machine"); |
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658 #ifdef _GNU_SOURCE |
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659 lua_pushstring(L, uname_info.domainname); |
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660 lua_setfield(L, -2, "domainname"); |
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661 #endif |
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662 return 1; |
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663 } |
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664 |
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665 int lc_setenv(lua_State* L) { |
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666 const char* var = luaL_checkstring(L, 1); |
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667 const char* value; |
4934 | 668 |
669 /* If the second argument is nil or nothing, unset the var */ | |
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670 if(lua_isnoneornil(L, 2)) { |
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671 if(unsetenv(var) != 0) { |
4934 | 672 lua_pushnil(L); |
673 lua_pushstring(L, strerror(errno)); | |
674 return 2; | |
675 } | |
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676 |
4934 | 677 lua_pushboolean(L, 1); |
678 return 1; | |
679 } | |
680 | |
681 value = luaL_checkstring(L, 2); | |
682 | |
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683 if(setenv(var, value, 1) != 0) { |
4934 | 684 lua_pushnil(L); |
685 lua_pushstring(L, strerror(errno)); | |
686 return 2; | |
687 } | |
688 | |
689 lua_pushboolean(L, 1); | |
690 return 1; | |
691 } | |
692 | |
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693 #ifdef WITH_MALLINFO |
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694 int lc_meminfo(lua_State* L) { |
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695 struct mallinfo info = mallinfo(); |
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696 lua_newtable(L); |
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697 /* This is the total size of memory allocated with sbrk by malloc, in bytes. */ |
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698 lua_pushinteger(L, info.arena); |
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699 lua_setfield(L, -2, "allocated"); |
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700 /* This is the total size of memory allocated with mmap, in bytes. */ |
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701 lua_pushinteger(L, info.hblkhd); |
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702 lua_setfield(L, -2, "allocated_mmap"); |
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703 /* This is the total size of memory occupied by chunks handed out by malloc. */ |
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704 lua_pushinteger(L, info.uordblks); |
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705 lua_setfield(L, -2, "used"); |
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706 /* This is the total size of memory occupied by free (not in use) chunks. */ |
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707 lua_pushinteger(L, info.fordblks); |
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708 lua_setfield(L, -2, "unused"); |
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709 /* This is the size of the top-most releasable chunk that normally borders the |
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710 end of the heap (i.e., the high end of the virtual address space's data segment). */ |
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711 lua_pushinteger(L, info.keepcost); |
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712 lua_setfield(L, -2, "returnable"); |
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713 return 1; |
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714 } |
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715 #endif |
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716 |
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717 /* File handle extraction blatantly stolen from |
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718 * https://github.com/rrthomas/luaposix/blob/master/lposix.c#L631 |
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719 * */ |
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720 |
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721 #if _XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L || defined(_GNU_SOURCE) |
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722 int lc_fallocate(lua_State* L) { |
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723 int ret; |
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724 off_t offset, len; |
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725 FILE* f = *(FILE**) luaL_checkudata(L, 1, LUA_FILEHANDLE); |
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726 |
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727 if(f == NULL) { |
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728 return luaL_error(L, "attempt to use a closed file"); |
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729 } |
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730 |
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731 offset = luaL_checkinteger(L, 2); |
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732 len = luaL_checkinteger(L, 3); |
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733 |
5812
57ebf93ec720
util.pposix: Fix building on non-Linux with glibc
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734 #if defined(__linux__) && defined(_GNU_SOURCE) |
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735 errno = 0; |
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736 ret = fallocate(fileno(f), FALLOC_FL_KEEP_SIZE, offset, len); |
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737 |
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738 if(ret == 0) { |
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739 lua_pushboolean(L, 1); |
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740 return 1; |
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741 } |
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742 |
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743 /* Some old versions of Linux apparently use the return value instead of errno */ |
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744 if(errno == 0) { |
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745 errno = ret; |
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746 } |
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747 |
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748 if(errno != ENOSYS && errno != EOPNOTSUPP) { |
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749 lua_pushnil(L); |
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750 lua_pushstring(L, strerror(errno)); |
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751 return 2; |
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752 } |
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753 |
5068
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754 #else |
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755 #warning Only using posix_fallocate() fallback. |
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756 #warning Linux fallocate() is strongly recommended if available: recompile with -D_GNU_SOURCE |
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757 #warning Note that posix_fallocate() will still be used on filesystems that dont support fallocate() |
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758 #endif |
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759 |
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|
760 ret = posix_fallocate(fileno(f), offset, len); |
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761 |
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762 if(ret == 0) { |
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|
763 lua_pushboolean(L, 1); |
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764 return 1; |
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765 } else { |
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766 lua_pushnil(L); |
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|
767 lua_pushstring(L, strerror(ret)); |
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|
768 /* posix_fallocate() can leave a bunch of NULs at the end, so we cut that |
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|
769 * this assumes that offset == length of the file */ |
6642
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|
770 if(ftruncate(fileno(f), offset) != 0) { |
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|
771 lua_pushstring(L, strerror(errno)); |
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|
772 return 3; |
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|
773 } |
5067
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|
774 return 2; |
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775 } |
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776 } |
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777 #endif |
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|
778 |
723
c1e7d280c174
mod_posix/pposix: Fix reporting of incorrect PID on daemonization. Log correct PID, and support writing a pidfile (pidfile = '/path/to/prosody.pid' in config). Added getpid() to pposix and improved function names.
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diff
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|
779 /* Register functions */ |
c1e7d280c174
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diff
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|
780 |
6615
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|
781 int luaopen_util_pposix(lua_State* L) { |
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|
782 luaL_Reg exports[] = { |
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|
783 { "abort", lc_abort }, |
722
63456c9d0522
mod_posix: Support for logging to syslog (log = 'syslog' in config)
Matthew Wild <mwild1@gmail.com>
parents:
588
diff
changeset
|
784 |
2441
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|
785 { "daemonize", lc_daemonize }, |
722
63456c9d0522
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Matthew Wild <mwild1@gmail.com>
parents:
588
diff
changeset
|
786 |
2441
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|
787 { "syslog_open", lc_syslog_open }, |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
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|
788 { "syslog_close", lc_syslog_close }, |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
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diff
changeset
|
789 { "syslog_log", lc_syslog_log }, |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
790 { "syslog_setminlevel", lc_syslog_setmask }, |
722
63456c9d0522
mod_posix: Support for logging to syslog (log = 'syslog' in config)
Matthew Wild <mwild1@gmail.com>
parents:
588
diff
changeset
|
791 |
2441
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
792 { "getpid", lc_getpid }, |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
793 { "getuid", lc_getuid }, |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
794 { "getgid", lc_getgid }, |
722
63456c9d0522
mod_posix: Support for logging to syslog (log = 'syslog' in config)
Matthew Wild <mwild1@gmail.com>
parents:
588
diff
changeset
|
795 |
2441
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
796 { "setuid", lc_setuid }, |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
797 { "setgid", lc_setgid }, |
3471
482275e38224
util.pposix, prosodyctl, mod_posix: Add initgroups() function, and bump module version. prosodyctl inits groups with the groups of prosody_user. (thanks dbb)
Matthew Wild <mwild1@gmail.com>
parents:
2925
diff
changeset
|
798 { "initgroups", lc_initgroups }, |
729
f62ef65d5c01
pposix: Add syslog_setmask (use config: minimum_log_level = 'warn' etc.)
Matthew Wild <mwild1@gmail.com>
parents:
727
diff
changeset
|
799 |
2441
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
800 { "umask", lc_umask }, |
723
c1e7d280c174
mod_posix/pposix: Fix reporting of incorrect PID on daemonization. Log correct PID, and support writing a pidfile (pidfile = '/path/to/prosody.pid' in config). Added getpid() to pposix and improved function names.
Matthew Wild <mwild1@gmail.com>
parents:
722
diff
changeset
|
801 |
2443
b335ae55af77
util.pposix: Add mkdir(path)
Matthew Wild <mwild1@gmail.com>
parents:
2441
diff
changeset
|
802 { "mkdir", lc_mkdir }, |
804
9bc1544c99b7
util.pposix: Add getuid/setuid (we don't use them yet)
Matthew Wild <mwild1@gmail.com>
parents:
796
diff
changeset
|
803 |
2441
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
804 { "setrlimit", lc_setrlimit }, |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
805 { "getrlimit", lc_getrlimit }, |
2436
ccc71b5d2e01
util.posix: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents:
2060
diff
changeset
|
806 |
3481
72d3c8029178
util.pposix: Add pposix.uname(), bump version
Matthew Wild <mwild1@gmail.com>
parents:
3471
diff
changeset
|
807 { "uname", lc_uname }, |
72d3c8029178
util.pposix: Add pposix.uname(), bump version
Matthew Wild <mwild1@gmail.com>
parents:
3471
diff
changeset
|
808 |
4934 | 809 { "setenv", lc_setenv }, |
810 | |
4946
2975c7008ccd
util.pposix: Add meminfo() binding to memory allocation stats provided by mallinfo() [compilation tested on Ubuntu...]
Matthew Wild <mwild1@gmail.com>
parents:
4934
diff
changeset
|
811 #ifdef WITH_MALLINFO |
2975c7008ccd
util.pposix: Add meminfo() binding to memory allocation stats provided by mallinfo() [compilation tested on Ubuntu...]
Matthew Wild <mwild1@gmail.com>
parents:
4934
diff
changeset
|
812 { "meminfo", lc_meminfo }, |
2975c7008ccd
util.pposix: Add meminfo() binding to memory allocation stats provided by mallinfo() [compilation tested on Ubuntu...]
Matthew Wild <mwild1@gmail.com>
parents:
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diff
changeset
|
813 #endif |
2975c7008ccd
util.pposix: Add meminfo() binding to memory allocation stats provided by mallinfo() [compilation tested on Ubuntu...]
Matthew Wild <mwild1@gmail.com>
parents:
4934
diff
changeset
|
814 |
5044
4ef0dbfead53
util.pposix: Add fallocate method, backed by either posix_fallocate() or Linux fallocate()
Kim Alvefur <zash@zash.se>
parents:
4950
diff
changeset
|
815 #if _XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L || defined(_GNU_SOURCE) |
4ef0dbfead53
util.pposix: Add fallocate method, backed by either posix_fallocate() or Linux fallocate()
Kim Alvefur <zash@zash.se>
parents:
4950
diff
changeset
|
816 { "fallocate", lc_fallocate }, |
4ef0dbfead53
util.pposix: Add fallocate method, backed by either posix_fallocate() or Linux fallocate()
Kim Alvefur <zash@zash.se>
parents:
4950
diff
changeset
|
817 #endif |
4ef0dbfead53
util.pposix: Add fallocate method, backed by either posix_fallocate() or Linux fallocate()
Kim Alvefur <zash@zash.se>
parents:
4950
diff
changeset
|
818 |
2441
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
819 { NULL, NULL } |
d72078946a16
util.pposix: Replace the unwieldy module table generation with luaL_register() call - side effect - it now sets the pposix global to the module table
Matthew Wild <mwild1@gmail.com>
parents:
2438
diff
changeset
|
820 }; |
2438
819ba949c7bc
util.pposix: Add pposix.umask(), bump version to 0.3.2 (and do the same in mod_posix)
Matthew Wild <mwild1@gmail.com>
parents:
2437
diff
changeset
|
821 |
6411
6c8f6364bc48
util-src/*.c: Don't create globals when loaded
Kim Alvefur <zash@zash.se>
parents:
6156
diff
changeset
|
822 lua_newtable(L); |
6789
6b180e77c97a
util-src/*.c: Invert Lua 5.2 compat to be 5.2+ by default and a macro to support 5.1
Kim Alvefur <zash@zash.se>
parents:
6642
diff
changeset
|
823 luaL_setfuncs(L, exports, 0); |
804
9bc1544c99b7
util.pposix: Add getuid/setuid (we don't use them yet)
Matthew Wild <mwild1@gmail.com>
parents:
796
diff
changeset
|
824 |
727
78c9542de94e
pposix: Add _NAME and _VERSION
Matthew Wild <mwild1@gmail.com>
parents:
723
diff
changeset
|
825 lua_pushliteral(L, "pposix"); |
78c9542de94e
pposix: Add _NAME and _VERSION
Matthew Wild <mwild1@gmail.com>
parents:
723
diff
changeset
|
826 lua_setfield(L, -2, "_NAME"); |
78c9542de94e
pposix: Add _NAME and _VERSION
Matthew Wild <mwild1@gmail.com>
parents:
723
diff
changeset
|
827 |
78c9542de94e
pposix: Add _NAME and _VERSION
Matthew Wild <mwild1@gmail.com>
parents:
723
diff
changeset
|
828 lua_pushliteral(L, MODULE_VERSION); |
78c9542de94e
pposix: Add _NAME and _VERSION
Matthew Wild <mwild1@gmail.com>
parents:
723
diff
changeset
|
829 lua_setfield(L, -2, "_VERSION"); |
2436
ccc71b5d2e01
util.posix: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents:
2060
diff
changeset
|
830 |
586
b828d7d47973
Add posix support library, and adjust makefiles for it
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
831 return 1; |
3966
e71c19dac1c7
util.pposix: Remove extraneous semicolon
Matthew Wild <mwild1@gmail.com>
parents:
3482
diff
changeset
|
832 } |