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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) 2006-2009 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 * Implementation of g_spawn family of functions on Symbian. |
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24 |
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25 */ |
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26 /* Define this to get some logging all the time */ |
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27 /* #define G_SPAWN_SYMBIAN_DEBUG */ |
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28 |
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29 |
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30 |
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31 /*This program is adapted to be used in the Symbian OS scenario*/ |
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32 |
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33 #include "config.h" |
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34 |
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35 #include "glib.h" |
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36 #include "gprintfint.h" |
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37 #include "galias.h" |
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38 |
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39 #include <string.h> |
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40 #include <stdlib.h> |
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41 #include <stdio.h> |
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42 |
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43 #include <errno.h> |
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44 #include <fcntl.h> |
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45 |
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46 #include "glibintl.h" |
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47 |
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48 #ifdef __SYMBIAN32__ |
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49 #include <sys/select.h> |
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50 #include "glibbackend.h" |
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51 #include "glib_wsd.h" |
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52 #endif//__SYMBIAN32__ |
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53 |
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54 #if EMULATOR |
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55 |
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56 PLS(debug,gspawn_symbian,int) |
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57 #define debug (*FUNCTION_NAME(debug,gspawn_symbian)()) |
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58 |
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59 #endif /* EMULATOR */ |
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60 |
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61 #if (defined G_SPAWN_WIN32_DEBUG || defined G_SPAWN_SYMBIAN_DEBUG) |
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62 #if !(EMULATOR) |
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63 static int debug = 1; |
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64 #endif /* EMULATOR */ |
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65 #define SETUP_DEBUG() /* empty */ |
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66 #else |
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67 #if !(EMULATOR) |
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68 static int debug = -1; |
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69 #endif /* EMULATOR */ |
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70 #define SETUP_DEBUG() \ |
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71 G_STMT_START \ |
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72 { \ |
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73 if (debug == -1) \ |
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74 { \ |
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75 if (getenv ("G_SPAWN_WIN32_DEBUG") != NULL) \ |
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76 debug = 1; \ |
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77 else \ |
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78 debug = 0; \ |
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79 } \ |
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80 } \ |
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81 G_STMT_END |
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82 #endif |
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83 |
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84 enum |
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85 { |
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86 CHILD_NO_ERROR, |
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87 CHILD_CHDIR_FAILED, |
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88 CHILD_SPAWN_FAILED, |
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89 }; |
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90 |
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91 enum { |
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92 ARG_CHILD_ERR_REPORT = 1, |
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93 ARG_STDIN, |
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94 ARG_STDOUT, |
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95 ARG_STDERR, |
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96 ARG_WORKING_DIRECTORY, |
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97 ARG_CLOSE_DESCRIPTORS, |
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98 ARG_USE_PATH, |
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99 ARG_WAIT, |
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100 ARG_PROGRAM, |
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101 ARG_COUNT = ARG_PROGRAM |
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102 }; |
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103 |
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104 |
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105 static gchar * |
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106 protect_argv_string (const gchar *string) |
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107 { |
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108 const gchar *p = string; |
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109 gchar *retval, *q; |
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110 gint len = 0; |
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111 gboolean need_dblquotes = FALSE; |
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112 while (*p) |
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113 { |
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114 if (*p == ' ' || *p == '\t') |
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115 need_dblquotes = TRUE; |
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116 else if (*p == '"') |
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117 len++; |
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118 else if (*p == '\\') |
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119 { |
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120 const gchar *pp = p; |
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121 while (*pp && *pp == '\\') |
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122 pp++; |
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123 if (*pp == '"') |
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124 len++; |
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125 } |
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126 len++; |
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127 p++; |
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128 } |
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129 q = retval = g_malloc (len + need_dblquotes*2 + 1); |
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130 p = string; |
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131 |
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132 if (need_dblquotes) |
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133 *q++ = '"'; |
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134 |
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135 while (*p) |
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136 { |
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137 if (*p == '"') |
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138 *q++ = '\\'; |
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139 else if (*p == '\\') |
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140 { |
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141 const gchar *pp = p; |
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142 while (*pp && *pp == '\\') |
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143 pp++; |
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144 if (*pp == '"') |
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145 *q++ = '\\'; |
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146 } |
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147 *q++ = *p; |
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148 p++; |
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149 } |
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150 |
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151 if (need_dblquotes) |
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152 *q++ = '"'; |
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153 *q++ = '\0'; |
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154 |
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155 return retval; |
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156 } |
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157 |
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158 static gint |
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159 protect_argv (gchar **argv, |
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160 gchar ***new_argv) |
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161 { |
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162 gint i; |
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163 gint argc = 0; |
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164 |
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165 while (argv[argc]) |
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166 ++argc; |
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167 *new_argv = g_new (gchar *, argc+1); |
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168 |
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169 /* Quote each argv element if necessary, so that it will get |
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170 * reconstructed correctly in the C runtime startup code. Note that |
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171 * the unquoting algorithm in the C runtime is really weird, and |
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172 * rather different than what Unix shells do. See stdargv.c in the C |
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173 * runtime sources (in the Platform SDK, in src/crt). |
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174 * |
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175 * Note that an new_argv[0] constructed by this function should |
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176 * *not* be passed as the filename argument to a spawn* or exec* |
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177 * family function. That argument should be the real file name |
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178 * without any quoting. |
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179 */ |
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180 for (i = 0; i < argc; i++) |
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181 (*new_argv)[i] = protect_argv_string (argv[i]); |
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182 |
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183 (*new_argv)[argc] = NULL; |
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184 |
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185 return argc; |
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186 } |
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187 |
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188 EXPORT_C GQuark |
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189 g_spawn_error_quark (void) |
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190 { |
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191 return g_quark_from_static_string ("g-exec-error-quark"); |
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192 } |
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193 |
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194 EXPORT_C gboolean |
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195 g_spawn_async (const gchar *working_directory, |
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196 gchar **argv, |
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197 gchar **envp, |
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198 GSpawnFlags flags, |
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199 GSpawnChildSetupFunc child_setup, |
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200 gpointer user_data, |
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201 GPid *child_handle, |
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202 GError **error) |
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203 { |
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204 g_return_val_if_fail (argv != NULL, FALSE); |
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205 |
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206 return g_spawn_async_with_pipes (working_directory, |
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207 argv, envp, |
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208 flags, |
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209 child_setup, |
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210 user_data, |
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211 child_handle, |
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212 NULL, NULL, NULL, |
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213 error); |
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214 } |
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215 |
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216 static gboolean |
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217 utf8_charv_to_wcharv (char **utf8_charv, |
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218 wchar_t ***wcharv, |
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219 int *error_index, |
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220 GError **error) |
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221 { |
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222 wchar_t **retval = NULL; |
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223 |
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224 *wcharv = NULL; |
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225 if (utf8_charv != NULL) |
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226 { |
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227 int n = 0, i; |
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228 |
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229 while (utf8_charv[n]) |
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230 n++; |
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231 retval = g_new (wchar_t *, n + 1); |
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232 |
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233 |
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234 for (i = 0; i < n; i++) |
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235 { |
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236 retval[i] = g_utf8_to_utf16 (utf8_charv[i], -1, NULL, NULL, error); |
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237 if (retval[i] == NULL) |
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238 { |
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239 if (error_index) |
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240 *error_index = i; |
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241 while (i) |
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242 g_free (retval[--i]); |
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243 g_free (retval); |
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244 return FALSE; |
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245 } |
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246 } |
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247 |
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248 retval[n] = NULL; |
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249 } |
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250 *wcharv = retval; |
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251 return TRUE; |
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252 } |
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253 |
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254 static gboolean |
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255 utf8_charv_to_cp_charv (char **utf8_charv, |
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256 gchar ***cp_charv, |
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257 int *error_index, |
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258 GError **error) |
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259 { |
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260 char **retval = NULL; |
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261 |
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262 *cp_charv = NULL; |
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263 if (utf8_charv != NULL) |
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264 { |
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265 int n = 0, i; |
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266 |
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267 while (utf8_charv[n]) |
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268 n++; |
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269 retval = g_new (char *, n + 1); |
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270 |
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271 for (i = 0; i < n; i++) |
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272 { |
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273 retval[i] = g_locale_from_utf8 (utf8_charv[i], -1, NULL, NULL, error); |
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274 if (retval[i] == NULL) |
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275 { |
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276 if (error_index) |
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277 *error_index = i; |
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278 while (i) |
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279 g_free (retval[--i]); |
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280 g_free (retval); |
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281 return FALSE; |
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282 } |
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283 } |
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284 retval[n] = NULL; |
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285 } |
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286 |
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287 *cp_charv = retval; |
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288 return TRUE; |
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289 } |
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290 |
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291 static gboolean |
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292 do_spawn_directly (gint *exit_status, |
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293 gboolean do_return_handle, |
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294 GSpawnFlags flags, |
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295 gchar **argv, |
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296 char **envp, |
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297 char **protected_argv, |
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298 GSpawnChildSetupFunc child_setup, |
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299 gpointer user_data, |
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300 GPid *child_handle, |
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301 GError **error) |
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302 { |
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303 const int mode = (exit_status == NULL) ? P_NOWAIT : P_WAIT; |
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304 char **new_argv; |
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305 int rc = -1; |
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306 int saved_errno; |
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307 GError *conv_error = NULL; |
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308 gint conv_error_index; |
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309 |
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310 char *cpargv0, **cpargv, **cpenvp; |
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311 |
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312 /* |
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313 if G_SPAWN_FILE_AND_ARGV_ZERO is specified all the argv except the first |
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314 ie argv[0] is passed to the child. if the flag is not specified all the |
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315 arguements are passed to the child including the the argv[0] |
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316 */ |
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317 new_argv = (flags & G_SPAWN_FILE_AND_ARGV_ZERO) ? protected_argv + 1 : protected_argv; |
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318 |
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319 cpargv0 = g_locale_from_utf8 (argv[0], -1, NULL, NULL, &conv_error); |
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320 if (cpargv0 == NULL) |
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321 { |
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322 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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323 "Invalid program name: %s", |
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324 conv_error->message); |
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325 g_error_free (conv_error); |
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326 |
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327 return FALSE; |
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328 } |
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329 |
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330 if (!utf8_charv_to_cp_charv (new_argv, &cpargv, &conv_error_index, &conv_error)) |
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331 { |
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332 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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333 "Invalid string in argument vector at %d: %s", |
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334 conv_error_index, conv_error->message); |
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335 g_error_free (conv_error); |
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336 g_free (cpargv0); |
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337 |
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338 return FALSE; |
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339 } |
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340 |
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341 if (!utf8_charv_to_cp_charv (envp, &cpenvp, NULL, &conv_error)) |
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342 { |
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343 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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344 "Invalid string in environment: %s", |
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345 conv_error->message); |
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346 g_error_free (conv_error); |
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347 g_free (cpargv0); |
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348 g_strfreev (cpargv); |
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349 |
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350 return FALSE; |
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351 } |
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352 |
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353 if (child_setup) |
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354 (* child_setup) (user_data); |
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355 |
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356 if (flags & G_SPAWN_SEARCH_PATH) |
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357 if (cpenvp != NULL) |
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358 rc = spawnvpe (mode, cpargv0, (const char **) cpargv, (const char **) cpenvp); |
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359 else |
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360 rc = spawnvp (mode, cpargv0, (const char **) cpargv); |
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361 else |
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362 if (envp != NULL) |
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363 rc = spawnve (mode, cpargv0, (const char **) cpargv, (const char **) cpenvp); |
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364 else |
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365 rc = spawnv (mode, cpargv0, (const char **) cpargv); |
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366 |
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367 g_free (cpargv0); |
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368 g_strfreev (cpargv); |
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369 g_strfreev (cpenvp); |
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370 |
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371 |
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372 saved_errno = errno; |
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373 |
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374 if (rc == -1 && saved_errno != 0) |
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375 { |
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376 g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, |
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377 _("Failed to execute child process (%s)"), |
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378 g_strerror (saved_errno)); |
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379 return FALSE; |
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380 } |
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381 |
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382 if (exit_status == NULL) |
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383 { |
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384 if (child_handle && do_return_handle) |
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385 *child_handle = (GPid) rc; |
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386 else |
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387 { |
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388 CloseHandle ((HANDLE) rc); |
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389 if (child_handle) |
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390 *child_handle = 0; |
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391 } |
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392 } |
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393 else |
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394 *exit_status = rc; |
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395 |
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396 return TRUE; |
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397 } |
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398 |
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399 #if EMULATOR |
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400 |
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401 PLS(warned_about_child_setup ,do_spawn_with_pipes,gboolean) |
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402 #define warned_about_child_setup (*FUNCTION_NAME(warned_about_child_setup,do_spawn_with_pipes)()) |
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403 |
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404 #endif /* EMULATOR */ |
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405 |
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406 static gboolean |
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407 do_spawn_with_pipes (gint *exit_status, |
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408 gboolean do_return_handle, |
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409 const gchar *working_directory, |
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410 gchar **argv, |
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411 char **envp, |
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412 GSpawnFlags flags, |
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413 GSpawnChildSetupFunc child_setup, |
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414 gpointer user_data, |
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415 GPid *child_handle, |
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416 gint *standard_input, |
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417 gint *standard_output, |
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418 gint *standard_error, |
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419 gint *err_report, |
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420 GError **error) |
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421 { |
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422 char **protected_argv; |
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423 int rc = -1; |
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424 int argc; |
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425 gboolean retval; |
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426 |
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427 #if !(EMULATOR) |
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428 static gboolean warned_about_child_setup = FALSE; |
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429 #endif /* EMULATOR */ |
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430 |
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431 GError *conv_error = NULL; |
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432 |
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433 SETUP_DEBUG(); |
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434 |
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435 if (child_setup && !warned_about_child_setup) |
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436 { |
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437 warned_about_child_setup = TRUE; |
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438 g_warning ("passing a child setup function to the g_spawn functions is pointless and dangerous on Win32"); |
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439 } |
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440 |
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441 argc = protect_argv (argv, &protected_argv); |
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442 |
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443 retval = |
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444 do_spawn_directly (exit_status, do_return_handle, flags, |
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445 argv, envp, protected_argv, |
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446 child_setup, user_data, child_handle, |
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447 error); |
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448 g_strfreev (protected_argv); |
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449 |
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450 if(standard_input) |
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451 *standard_input = -1; |
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452 if(standard_output) |
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453 *standard_output = -1; |
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454 if(standard_error) |
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455 *standard_error = -1; |
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456 |
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457 return retval; |
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458 } |
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459 |
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460 #if EMULATOR |
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461 #undef warned_about_child_setup |
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462 #endif /* EMULATOR */ |
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463 |
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464 EXPORT_C gboolean |
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465 g_spawn_sync (const gchar *working_directory, |
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466 gchar **argv, |
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467 gchar **envp, |
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468 GSpawnFlags flags, |
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469 GSpawnChildSetupFunc child_setup, |
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470 gpointer user_data, |
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471 gchar **standard_output, |
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472 gchar **standard_error, |
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473 gint *exit_status, |
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474 GError **error) |
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475 { |
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476 gint outpipe = -1; |
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477 gint errpipe = -1; |
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478 gint reportpipe = -1; |
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479 gint outindex = -1; |
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480 gint errindex = -1; |
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481 GString *outstr = NULL; |
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482 GString *errstr = NULL; |
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483 gint status; |
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484 |
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485 g_return_val_if_fail (argv != NULL, FALSE); |
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486 g_return_val_if_fail (!(flags & G_SPAWN_DO_NOT_REAP_CHILD), FALSE); |
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487 g_return_val_if_fail (standard_output == NULL || |
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488 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE); |
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489 g_return_val_if_fail (standard_error == NULL || |
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490 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE); |
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491 |
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492 /* Just to ensure segfaults if callers try to use |
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493 * these when an error is reported. |
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494 */ |
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495 if (standard_output) |
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496 *standard_output = NULL; |
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497 |
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498 if (standard_error) |
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499 *standard_error = NULL; |
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500 |
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501 if (!do_spawn_with_pipes (&status, |
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502 FALSE, |
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503 working_directory, |
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504 argv, |
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505 envp, |
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506 flags, |
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507 child_setup, |
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508 user_data, |
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509 NULL, |
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510 NULL, |
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511 standard_output ? &outpipe : NULL, |
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512 standard_error ? &errpipe : NULL, |
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513 &reportpipe, |
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514 error)) |
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515 return FALSE; |
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516 |
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517 if (exit_status) |
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518 *exit_status = status; |
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519 return TRUE; |
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520 } |
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521 |
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522 EXPORT_C gboolean |
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523 g_spawn_async_with_pipes (const gchar *working_directory, |
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524 gchar **argv, |
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525 gchar **envp, |
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526 GSpawnFlags flags, |
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527 GSpawnChildSetupFunc child_setup, |
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528 gpointer user_data, |
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529 GPid *child_handle, |
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530 gint *standard_input, |
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531 gint *standard_output, |
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532 gint *standard_error, |
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533 GError **error) |
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534 { |
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535 g_return_val_if_fail (argv != NULL, FALSE); |
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536 g_return_val_if_fail (standard_output == NULL || |
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537 !(flags & G_SPAWN_STDOUT_TO_DEV_NULL), FALSE); |
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538 g_return_val_if_fail (standard_error == NULL || |
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539 !(flags & G_SPAWN_STDERR_TO_DEV_NULL), FALSE); |
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540 /* can't inherit stdin if we have an input pipe. */ |
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541 g_return_val_if_fail (standard_input == NULL || |
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542 !(flags & G_SPAWN_CHILD_INHERITS_STDIN), FALSE); |
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543 |
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544 return do_spawn_with_pipes (NULL, |
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545 (flags & G_SPAWN_DO_NOT_REAP_CHILD), |
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546 working_directory, |
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547 argv, |
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548 envp, |
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549 flags, |
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550 child_setup, |
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551 user_data, |
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552 child_handle, |
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553 standard_input, |
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554 standard_output, |
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555 standard_error, |
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556 NULL, |
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557 error); |
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558 } |
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559 |
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560 EXPORT_C gboolean |
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561 g_spawn_command_line_sync (const gchar *command_line, |
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562 gchar **standard_output, |
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563 gchar **standard_error, |
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564 gint *exit_status, |
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565 GError **error) |
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566 { |
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567 gboolean retval; |
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568 gchar **argv = 0; |
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569 |
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570 g_return_val_if_fail (command_line != NULL, FALSE); |
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571 |
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572 if (!g_shell_parse_argv (command_line, |
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573 NULL, &argv, |
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574 error)) |
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575 return FALSE; |
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576 |
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577 retval = g_spawn_sync (NULL, |
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578 argv, |
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579 NULL, |
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580 G_SPAWN_SEARCH_PATH, |
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581 NULL, |
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582 NULL, |
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583 standard_output, |
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584 standard_error, |
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585 exit_status, |
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586 error); |
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587 g_strfreev (argv); |
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588 |
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589 return retval; |
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590 } |
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591 |
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592 EXPORT_C gboolean |
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593 g_spawn_command_line_async (const gchar *command_line, |
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594 GError **error) |
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595 { |
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596 gboolean retval; |
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597 gchar **argv = 0; |
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598 |
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599 g_return_val_if_fail (command_line != NULL, FALSE); |
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600 |
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601 if (!g_shell_parse_argv (command_line, |
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602 NULL, &argv, |
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603 error)) |
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604 return FALSE; |
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605 |
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606 retval = g_spawn_async (NULL, |
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607 argv, |
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608 NULL, |
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609 G_SPAWN_SEARCH_PATH, |
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610 NULL, |
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611 NULL, |
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612 NULL, |
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613 error); |
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614 g_strfreev (argv); |
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615 |
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616 return retval; |
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617 } |
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618 |
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619 EXPORT_C void |
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620 g_spawn_close_pid (GPid pid) |
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621 { |
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622 CloseHandle (pid); |
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623 } |
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624 |
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625 #define __G_SPAWN_SYMBIAN_C__ |
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626 #include "galiasdef.c" |