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1 /* gspawn-spawn.c - Process launching on Symbian |
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2 * |
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3 * Copyright 2000 Red Hat, Inc. |
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4 * Copyright 2003 Tor Lillqvist |
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5 * Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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6 * |
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7 * GLib is free software; you can redistribute it and/or |
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8 * modify it under the terms of the GNU Lesser General Public License as |
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9 * published by the Free Software Foundation; either version 2 of the |
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10 * License, or (at your option) any later version. |
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11 * |
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12 * GLib is distributed in the hope that it will be useful, |
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with GLib; see the file COPYING.LIB. If not, write |
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19 * to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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20 * Boston, MA 02111-1307, USA. |
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21 */ |
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22 |
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23 |
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24 /* Define this to get some logging all the time */ |
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25 /* #define G_SPAWN_WIN32_DEBUG */ |
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26 |
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27 |
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28 |
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29 /*This program is adapted to be used in the Symbian OS scenario*/ |
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30 |
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31 #include <config.h> |
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32 |
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33 #include "glib.h" |
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34 #include "gprintfint.h" |
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35 #include "galias.h" |
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36 |
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37 #include <string.h> |
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38 #include <stdlib.h> |
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39 #include <stdio.h> |
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40 |
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41 #include <errno.h> |
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42 #include <fcntl.h> |
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43 |
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44 #include "glibintl.h" |
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45 |
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46 #ifdef __SYMBIAN32__ |
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47 #include <sys/select.h> |
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48 #include "glibbackend.h" |
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49 #endif |
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50 |
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51 #ifdef __SYMBIAN32__ |
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52 #include <glib_wsd.h> |
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53 #endif |
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54 |
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55 #if EMULATOR |
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56 |
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57 PLS(debug,gspawn_symbian,int) |
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58 #define debug (*FUNCTION_NAME(debug,gspawn_symbian)()) |
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59 |
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60 #endif /* EMULATOR */ |
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61 |
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62 #ifdef G_SPAWN_SYMBIAN_DEBUG |
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63 #if !(EMULATOR) |
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64 static int debug = 1; |
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65 #endif /* EMULATOR */ |
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66 #define SETUP_DEBUG() /* empty */ |
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67 #else |
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68 #if !(EMULATOR) |
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69 static int debug = -1; |
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70 #endif /* EMULATOR */ |
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71 #define SETUP_DEBUG() \ |
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72 G_STMT_START \ |
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73 { \ |
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74 if (debug == -1) \ |
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75 { \ |
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76 if (getenv ("G_SPAWN_WIN32_DEBUG") != NULL) \ |
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77 debug = 1; \ |
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78 else \ |
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79 debug = 0; \ |
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80 } \ |
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81 } \ |
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82 G_STMT_END |
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83 #endif |
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84 |
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85 enum |
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86 { |
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87 CHILD_NO_ERROR, |
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88 CHILD_CHDIR_FAILED, |
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89 CHILD_SPAWN_FAILED, |
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90 }; |
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91 |
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92 enum { |
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93 ARG_CHILD_ERR_REPORT = 1, |
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94 ARG_STDIN, |
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95 ARG_STDOUT, |
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96 ARG_STDERR, |
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97 ARG_WORKING_DIRECTORY, |
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98 ARG_CLOSE_DESCRIPTORS, |
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99 ARG_USE_PATH, |
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100 ARG_WAIT, |
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101 ARG_PROGRAM, |
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102 ARG_COUNT = ARG_PROGRAM |
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103 }; |
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104 |
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105 |
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106 static gchar * |
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107 protect_argv_string (const gchar *string) |
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108 { |
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109 const gchar *p = string; |
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110 gchar *retval, *q; |
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111 gint len = 0; |
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112 gboolean need_dblquotes = FALSE; |
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113 while (*p) |
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114 { |
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115 if (*p == ' ' || *p == '\t') |
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116 need_dblquotes = TRUE; |
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117 else if (*p == '"') |
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118 len++; |
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119 else if (*p == '\\') |
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120 { |
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121 const gchar *pp = p; |
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122 while (*pp && *pp == '\\') |
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123 pp++; |
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124 if (*pp == '"') |
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125 len++; |
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126 } |
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127 len++; |
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128 p++; |
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129 } |
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130 q = retval = g_malloc (len + need_dblquotes*2 + 1); |
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131 p = string; |
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132 |
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133 if (need_dblquotes) |
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134 *q++ = '"'; |
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135 |
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136 while (*p) |
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137 { |
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138 if (*p == '"') |
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139 *q++ = '\\'; |
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140 else if (*p == '\\') |
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141 { |
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142 const gchar *pp = p; |
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143 while (*pp && *pp == '\\') |
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144 pp++; |
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145 if (*pp == '"') |
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146 *q++ = '\\'; |
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147 } |
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148 *q++ = *p; |
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149 p++; |
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150 } |
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151 |
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152 if (need_dblquotes) |
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153 *q++ = '"'; |
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154 *q++ = '\0'; |
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155 |
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156 return retval; |
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157 } |
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158 |
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159 static gint |
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160 protect_argv (gchar **argv, |
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161 gchar ***new_argv) |
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162 { |
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163 gint i; |
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164 gint argc = 0; |
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165 |
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166 while (argv[argc]) |
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167 ++argc; |
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168 *new_argv = g_new (gchar *, argc+1); |
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169 |
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170 /* Quote each argv element if necessary, so that it will get |
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171 * reconstructed correctly in the C runtime startup code. Note that |
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172 * the unquoting algorithm in the C runtime is really weird, and |
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173 * rather different than what Unix shells do. See stdargv.c in the C |
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174 * runtime sources (in the Platform SDK, in src/crt). |
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175 * |
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176 * Note that an new_argv[0] constructed by this function should |
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177 * *not* be passed as the filename argument to a spawn* or exec* |
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178 * family function. That argument should be the real file name |
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179 * without any quoting. |
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180 */ |
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181 for (i = 0; i < argc; i++) |
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182 (*new_argv)[i] = protect_argv_string (argv[i]); |
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183 |
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184 (*new_argv)[argc] = NULL; |
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185 |
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186 return argc; |
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187 } |
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188 |
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189 #if EMULATOR |
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190 |
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191 PLS(quark,g_spawn_error_quark ,GQuark) |
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192 #define quark (*FUNCTION_NAME(quark,g_spawn_error_quark )()) |
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193 |
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194 #endif /* EMULATOR */ |
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195 |
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196 EXPORT_C GQuark |
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197 g_spawn_error_quark (void) |
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198 { |
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199 #if !(EMULATOR) |
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200 static GQuark quark = 0; |
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201 #endif /* EMULATOR */ |
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202 if (quark == 0) |
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203 quark = g_quark_from_static_string ("g-exec-error-quark"); |
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204 return quark; |
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205 } |
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206 |
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207 #if EMULATOR |
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208 #undef quark |
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209 #endif /* EMULATOR */ |
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210 |
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211 EXPORT_C gboolean |
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212 g_spawn_async (const gchar *working_directory, |
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213 gchar **argv, |
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214 gchar **envp, |
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215 GSpawnFlags flags, |
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216 GSpawnChildSetupFunc child_setup, |
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217 gpointer user_data, |
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218 GPid *child_handle, |
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219 GError **error) |
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220 { |
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221 g_return_val_if_fail (argv != NULL, FALSE); |
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222 |
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223 return g_spawn_async_with_pipes (working_directory, |
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224 argv, envp, |
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225 flags, |
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226 child_setup, |
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227 user_data, |
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228 child_handle, |
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229 NULL, NULL, NULL, |
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230 error); |
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231 } |
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232 |
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233 static gboolean |
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234 utf8_charv_to_wcharv (char **utf8_charv, |
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235 wchar_t ***wcharv, |
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236 int *error_index, |
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237 GError **error) |
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238 { |
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239 wchar_t **retval = NULL; |
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240 |
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241 *wcharv = NULL; |
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242 if (utf8_charv != NULL) |
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243 { |
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244 int n = 0, i; |
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245 |
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246 while (utf8_charv[n]) |
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247 n++; |
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248 retval = g_new (wchar_t *, n + 1); |
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249 |
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250 |
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251 for (i = 0; i < n; i++) |
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252 { |
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253 retval[i] = g_utf8_to_utf16 (utf8_charv[i], -1, NULL, NULL, error); |
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254 if (retval[i] == NULL) |
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255 { |
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256 if (error_index) |
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257 *error_index = i; |
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258 while (i) |
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259 g_free (retval[--i]); |
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260 g_free (retval); |
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261 return FALSE; |
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262 } |
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263 } |
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264 |
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265 retval[n] = NULL; |
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266 } |
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267 *wcharv = retval; |
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268 return TRUE; |
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269 } |
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270 |
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271 static gboolean |
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272 utf8_charv_to_cp_charv (char **utf8_charv, |
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273 gchar ***cp_charv, |
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274 int *error_index, |
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275 GError **error) |
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276 { |
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277 char **retval = NULL; |
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278 |
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279 *cp_charv = NULL; |
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280 if (utf8_charv != NULL) |
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281 { |
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282 int n = 0, i; |
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283 |
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284 while (utf8_charv[n]) |
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285 n++; |
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286 retval = g_new (char *, n + 1); |
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287 |
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288 for (i = 0; i < n; i++) |
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289 { |
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290 retval[i] = g_locale_from_utf8 (utf8_charv[i], -1, NULL, NULL, error); |
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291 if (retval[i] == NULL) |
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292 { |
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293 if (error_index) |
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294 *error_index = i; |
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295 while (i) |
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296 g_free (retval[--i]); |
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297 g_free (retval); |
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298 return FALSE; |
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299 } |
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300 } |
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301 retval[n] = NULL; |
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302 } |
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303 |
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304 *cp_charv = retval; |
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305 return TRUE; |
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306 } |
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307 |
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308 static gboolean |
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309 do_spawn_directly (gint *exit_status, |
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310 gboolean do_return_handle, |
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311 GSpawnFlags flags, |
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312 gchar **argv, |
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313 char **envp, |
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314 char **protected_argv, |
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315 GSpawnChildSetupFunc child_setup, |
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316 gpointer user_data, |
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317 GPid *child_handle, |
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318 GError **error) |
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319 { |
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320 const int mode = (exit_status == NULL) ? P_NOWAIT : P_WAIT; |
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321 char **new_argv; |
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322 int rc = -1; |
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323 int saved_errno; |
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324 GError *conv_error = NULL; |
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325 gint conv_error_index; |
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326 |
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327 char *cpargv0, **cpargv, **cpenvp; |
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328 |
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329 /* |
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330 if G_SPAWN_FILE_AND_ARGV_ZERO is specified all the argv except the first |
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331 ie argv[0] is passed to the child. if the flag is not specified all the |
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332 arguements are passed to the child including the the argv[0] |
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333 */ |
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334 new_argv = (flags & G_SPAWN_FILE_AND_ARGV_ZERO) ? protected_argv + 1 : protected_argv; |
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335 |
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336 cpargv0 = g_locale_from_utf8 (argv[0], -1, NULL, NULL, &conv_error); |
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337 if (cpargv0 == NULL) |
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338 { |
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339 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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340 "Invalid program name: %s", |
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341 conv_error->message); |
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342 g_error_free (conv_error); |
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343 |
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344 return FALSE; |
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345 } |
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346 |
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347 if (!utf8_charv_to_cp_charv (new_argv, &cpargv, &conv_error_index, &conv_error)) |
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348 { |
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349 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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350 "Invalid string in argument vector at %d: %s", |
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351 conv_error_index, conv_error->message); |
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352 g_error_free (conv_error); |
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353 g_free (cpargv0); |
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354 |
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355 return FALSE; |
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356 } |
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357 |
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358 if (!utf8_charv_to_cp_charv (envp, &cpenvp, NULL, &conv_error)) |
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359 { |
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360 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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361 "Invalid string in environment: %s", |
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362 conv_error->message); |
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363 g_error_free (conv_error); |
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364 g_free (cpargv0); |
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365 g_strfreev (cpargv); |
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366 |
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367 return FALSE; |
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368 } |
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369 |
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370 if (child_setup) |
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371 (* child_setup) (user_data); |
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372 |
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373 if (flags & G_SPAWN_SEARCH_PATH) |
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374 if (cpenvp != NULL) |
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375 rc = spawnvpe (mode, cpargv0, (const char **) cpargv, (const char **) cpenvp); |
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376 else |
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377 rc = spawnvp (mode, cpargv0, (const char **) cpargv); |
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378 else |
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379 if (envp != NULL) |
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380 rc = spawnve (mode, cpargv0, (const char **) cpargv, (const char **) cpenvp); |
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381 else |
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382 rc = spawnv (mode, cpargv0, (const char **) cpargv); |
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383 |
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384 g_free (cpargv0); |
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385 g_strfreev (cpargv); |
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386 g_strfreev (cpenvp); |
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387 |
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388 |
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389 saved_errno = errno; |
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390 |
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391 if (rc == -1 && saved_errno != 0) |
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392 { |
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393 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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394 _("Failed to execute child process (%s)"), |
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395 g_strerror (saved_errno)); |
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396 return FALSE; |
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397 } |
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398 |
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399 if (exit_status == NULL) |
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400 { |
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401 if (child_handle && do_return_handle) |
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402 *child_handle = (GPid) rc; |
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403 else |
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404 { |
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405 CloseHandle ((HANDLE) rc); |
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406 if (child_handle) |
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407 *child_handle = 0; |
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408 } |
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409 } |
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410 else |
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411 *exit_status = rc; |
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412 |
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413 return TRUE; |
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414 } |
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415 |
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416 #if EMULATOR |
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417 |
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418 PLS(warned_about_child_setup ,do_spawn_with_pipes,gboolean) |
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419 #define warned_about_child_setup (*FUNCTION_NAME(warned_about_child_setup,do_spawn_with_pipes)()) |
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420 |
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421 #endif /* EMULATOR */ |
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422 |
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423 |
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424 static gboolean |
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425 do_spawn_with_pipes (gint *exit_status, |
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426 gboolean do_return_handle, |
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427 const gchar *working_directory, |
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428 gchar **argv, |
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429 char **envp, |
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430 GSpawnFlags flags, |
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431 GSpawnChildSetupFunc child_setup, |
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432 gpointer user_data, |
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433 GPid *child_handle, |
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434 gint *standard_input, |
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435 gint *standard_output, |
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436 gint *standard_error, |
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437 gint *err_report, |
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438 GError **error) |
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439 { |
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440 char **protected_argv; |
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441 int rc = -1; |
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442 int argc; |
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443 gboolean retval; |
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444 |
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445 #if !(EMULATOR) |
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446 static gboolean warned_about_child_setup = FALSE; |
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447 #endif /* EMULATOR */ |
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448 |
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449 GError *conv_error = NULL; |
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450 |
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451 SETUP_DEBUG(); |
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452 |
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453 if (child_setup && !warned_about_child_setup) |
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454 { |
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455 warned_about_child_setup = TRUE; |
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456 g_warning ("passing a child setup function to the g_spawn functions is pointless and dangerous on Win32"); |
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457 } |
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458 |
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459 argc = protect_argv (argv, &protected_argv); |
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460 |
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461 retval = |
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462 do_spawn_directly (exit_status, do_return_handle, flags, |
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463 argv, envp, protected_argv, |
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464 child_setup, user_data, child_handle, |
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465 error); |
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466 g_strfreev (protected_argv); |
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467 |
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468 if(standard_input) |
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469 *standard_input = -1; |
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470 if(standard_output) |
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471 *standard_output = -1; |
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472 if(standard_error) |
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473 *standard_error = -1; |
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474 |
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475 return retval; |
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476 } |
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477 |
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478 #if EMULATOR |
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479 #undef warned_about_child_setup |
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480 #endif /* EMULATOR */ |
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481 |
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482 EXPORT_C gboolean |
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483 g_spawn_sync (const gchar *working_directory, |
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484 gchar **argv, |
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485 gchar **envp, |
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486 GSpawnFlags flags, |
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487 GSpawnChildSetupFunc child_setup, |
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488 gpointer user_data, |
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489 gchar **standard_output, |
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490 gchar **standard_error, |
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491 gint *exit_status, |
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492 GError **error) |
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493 { |
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494 gint outpipe = -1; |
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495 gint errpipe = -1; |
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496 gint reportpipe = -1; |
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497 gint outindex = -1; |
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498 gint errindex = -1; |
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499 GString *outstr = NULL; |
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500 GString *errstr = NULL; |
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501 gint status; |
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502 |
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503 g_return_val_if_fail (argv != NULL, FALSE); |
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504 g_return_val_if_fail (!(flags & G_SPAWN_DO_NOT_REAP_CHILD), FALSE); |
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505 g_return_val_if_fail (standard_output == NULL || |
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506 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE); |
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507 g_return_val_if_fail (standard_error == NULL || |
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508 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE); |
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509 |
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510 /* Just to ensure segfaults if callers try to use |
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511 * these when an error is reported. |
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512 */ |
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513 if (standard_output) |
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514 *standard_output = NULL; |
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515 |
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516 if (standard_error) |
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517 *standard_error = NULL; |
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518 |
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519 if (!do_spawn_with_pipes (&status, |
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520 FALSE, |
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521 working_directory, |
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522 argv, |
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523 envp, |
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524 flags, |
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525 child_setup, |
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526 user_data, |
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527 NULL, |
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528 NULL, |
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529 standard_output ? &outpipe : NULL, |
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530 standard_error ? &errpipe : NULL, |
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531 &reportpipe, |
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532 error)) |
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533 return FALSE; |
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534 |
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535 if (exit_status) |
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536 *exit_status = status; |
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537 return TRUE; |
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538 } |
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539 |
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540 EXPORT_C gboolean |
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541 g_spawn_async_with_pipes (const gchar *working_directory, |
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542 gchar **argv, |
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543 gchar **envp, |
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544 GSpawnFlags flags, |
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545 GSpawnChildSetupFunc child_setup, |
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546 gpointer user_data, |
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547 GPid *child_handle, |
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548 gint *standard_input, |
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549 gint *standard_output, |
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550 gint *standard_error, |
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551 GError **error) |
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552 { |
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553 g_return_val_if_fail (argv != NULL, FALSE); |
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554 g_return_val_if_fail (standard_output == NULL || |
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555 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE); |
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556 g_return_val_if_fail (standard_error == NULL || |
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557 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE); |
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558 /* can't inherit stdin if we have an input pipe. */ |
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559 g_return_val_if_fail (standard_input == NULL || |
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560 !(flags & G_SPAWN_CHILD_INHERITS_STDIN), FALSE); |
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561 |
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562 return do_spawn_with_pipes (NULL, |
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563 (flags & G_SPAWN_DO_NOT_REAP_CHILD), |
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564 working_directory, |
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565 argv, |
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566 envp, |
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567 flags, |
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568 child_setup, |
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569 user_data, |
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570 child_handle, |
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571 standard_input, |
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572 standard_output, |
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573 standard_error, |
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574 NULL, |
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575 error); |
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576 } |
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577 |
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578 EXPORT_C gboolean |
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579 g_spawn_command_line_sync (const gchar *command_line, |
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580 gchar **standard_output, |
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581 gchar **standard_error, |
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582 gint *exit_status, |
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583 GError **error) |
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584 { |
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585 gboolean retval; |
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586 gchar **argv = 0; |
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587 |
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588 g_return_val_if_fail (command_line != NULL, FALSE); |
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589 |
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590 if (!g_shell_parse_argv (command_line, |
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591 NULL, &argv, |
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592 error)) |
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593 return FALSE; |
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594 |
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595 retval = g_spawn_sync (NULL, |
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596 argv, |
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597 NULL, |
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598 G_SPAWN_SEARCH_PATH, |
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599 NULL, |
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600 NULL, |
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601 standard_output, |
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602 standard_error, |
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603 exit_status, |
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604 error); |
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605 g_strfreev (argv); |
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606 |
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607 return retval; |
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608 } |
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609 |
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610 EXPORT_C gboolean |
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611 g_spawn_command_line_async (const gchar *command_line, |
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612 GError **error) |
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613 { |
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614 gboolean retval; |
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615 gchar **argv = 0; |
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616 |
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617 g_return_val_if_fail (command_line != NULL, FALSE); |
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618 |
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619 if (!g_shell_parse_argv (command_line, |
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620 NULL, &argv, |
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621 error)) |
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622 return FALSE; |
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623 |
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624 retval = g_spawn_async (NULL, |
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625 argv, |
|
626 NULL, |
|
627 G_SPAWN_SEARCH_PATH, |
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628 NULL, |
|
629 NULL, |
|
630 NULL, |
|
631 error); |
|
632 g_strfreev (argv); |
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633 |
|
634 return retval; |
|
635 } |
|
636 |
|
637 EXPORT_C void |
|
638 g_spawn_close_pid (GPid pid) |
|
639 { |
|
640 CloseHandle (pid); |
|
641 } |
|
642 |
|
643 #define __G_SPAWN_C__ |
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644 #include "galiasdef.c" |