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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <cerrno> |
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28 |
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29 #include <string.h> |
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30 |
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31 #ifdef HAVE_SYS_TYPES_H |
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32 #include <sys/types.h> |
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33 #endif |
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34 |
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35 #ifdef HAVE_UNISTD_H |
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36 #include <unistd.h> |
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37 #endif |
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38 |
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39 #ifdef HAVE_FCNTL_H |
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40 #include <fcntl.h> |
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41 #endif |
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42 |
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43 #include "oct-syscalls.h" |
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44 #include "str-vec.h" |
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45 #include "syswait.h" |
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46 |
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47 #define NOT_SUPPORTED(nm) \ |
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48 nm ": not supported on this system" |
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49 |
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50 int |
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51 octave_syscalls::dup2 (int old_fd, int new_fd) |
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52 { |
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53 std::string msg; |
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54 return dup2 (old_fd, new_fd, msg); |
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55 } |
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56 |
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57 int |
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58 octave_syscalls::dup2 (int old_fd, int new_fd, std::string& msg) |
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59 { |
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60 msg = std::string (); |
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61 |
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62 int status = -1; |
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63 |
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64 #if defined (HAVE_DUP2) |
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65 status = ::dup2 (old_fd, new_fd); |
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66 |
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67 if (status < 0) |
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68 { |
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69 using namespace std; |
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70 msg = ::strerror (errno); |
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71 } |
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72 #else |
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73 msg = NOT_SUPPORTED ("dup2"); |
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74 #endif |
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75 |
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76 return status; |
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77 } |
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78 |
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79 int |
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80 octave_syscalls::execvp (const std::string& file, const string_vector& argv) |
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81 { |
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82 std::string msg; |
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83 return execvp (file, argv, msg); |
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84 } |
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85 |
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86 int |
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87 octave_syscalls::execvp (const std::string& file, const string_vector& args, |
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88 std::string& msg) |
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89 { |
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90 msg = std::string (); |
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91 |
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92 int status = -1; |
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93 |
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94 #if defined (HAVE_EXECVP) |
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95 char **argv = args.c_str_vec (); |
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96 |
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97 status = ::execvp (file.c_str (), argv); |
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98 |
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99 string_vector::delete_c_str_vec (argv); |
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100 |
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101 if (status < 0) |
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102 { |
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103 using namespace std; |
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104 msg = ::strerror (errno); |
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105 } |
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106 #else |
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107 msg = NOT_SUPPORTED ("execvp"); |
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108 #endif |
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109 |
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110 return status; |
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111 } |
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112 |
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113 int |
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114 octave_syscalls::fcntl (int fd, int cmd, long arg) |
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115 { |
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116 std::string msg; |
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117 return fcntl (fd, cmd, arg, msg); |
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118 } |
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119 |
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120 int |
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121 octave_syscalls::fcntl (int fd, int cmd, long arg, std::string& msg) |
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122 { |
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123 msg = std::string (); |
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124 |
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125 int status = -1; |
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126 |
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127 #if defined (HAVE_FCNTL) |
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128 status = ::fcntl (fd, cmd, arg); |
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129 |
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130 if (status < 0) |
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131 { |
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132 using namespace std; |
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133 msg = ::strerror (errno); |
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134 } |
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135 #else |
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136 msg = NOT_SUPPORTED ("fcntl"); |
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137 #endif |
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138 |
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139 return status; |
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140 } |
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141 |
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142 pid_t |
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143 octave_syscalls::fork (std::string& msg) |
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144 { |
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145 pid_t status = -1; |
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146 |
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147 #if defined (HAVE_FORK) |
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148 status = ::fork (); |
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149 |
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150 if (status < 0) |
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151 { |
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152 using namespace std; |
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153 msg = ::strerror (errno); |
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154 } |
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155 #else |
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156 msg = NOT_SUPPORTED ("fork"); |
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157 #endif |
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158 |
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159 return status; |
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160 } |
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161 |
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162 pid_t |
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163 octave_syscalls::vfork (std::string& msg) |
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164 { |
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165 pid_t status = -1; |
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166 |
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167 #if defined (HAVE_VFORK) || defined (HAVE_FORK) |
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168 #if defined (HAVE_VFORK) |
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169 status = ::vfork (); |
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170 #else |
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171 status = ::fork (); |
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172 #endif |
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173 |
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174 if (status < 0) |
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175 { |
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176 using namespace std; |
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177 msg = ::strerror (errno); |
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178 } |
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179 #else |
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180 msg = NOT_SUPPORTED ("vfork"); |
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181 #endif |
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182 |
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183 return status; |
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184 } |
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185 |
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186 pid_t |
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187 octave_syscalls::getpgrp (std::string& msg) |
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188 { |
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189 pid_t status = -1; |
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190 |
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191 #if defined (HAVE_GETPGRP) |
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192 status = ::getpgrp (); |
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193 |
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194 if (status < 0) |
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195 { |
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196 using namespace std; |
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197 msg = ::strerror (errno); |
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198 } |
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199 #else |
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200 msg = NOT_SUPPORTED ("getpgrp"); |
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201 #endif |
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202 |
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203 return status; |
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204 } |
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205 |
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206 pid_t |
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207 octave_syscalls::getpid (void) |
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208 { |
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209 #if defined (HAVE_GETPID) |
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210 return ::getpid (); |
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211 #else |
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212 return 0; |
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213 #endif |
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214 } |
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215 |
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216 pid_t |
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217 octave_syscalls::getppid (void) |
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218 { |
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219 #if defined (HAVE_GETPPID) |
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220 return ::getppid (); |
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221 #else |
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222 return 0; |
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223 #endif |
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224 } |
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225 |
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226 gid_t |
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227 octave_syscalls::getgid (void) |
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228 { |
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229 #if defined (HAVE_GETGID) |
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230 return ::getgid (); |
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231 #else |
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232 return 0; |
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233 #endif |
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234 } |
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235 |
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236 gid_t |
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237 octave_syscalls::getegid (void) |
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238 { |
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239 #if defined (HAVE_GETEGID) |
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240 return ::getegid (); |
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241 #else |
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242 return 0; |
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243 #endif |
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244 } |
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245 |
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246 uid_t |
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247 octave_syscalls::getuid (void) |
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248 { |
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249 #if defined (HAVE_GETUID) |
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250 return ::getuid (); |
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251 #else |
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252 return 0; |
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253 #endif |
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254 } |
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255 |
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256 uid_t |
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257 octave_syscalls::geteuid (void) |
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258 { |
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259 #if defined (HAVE_GETEUID) |
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260 return ::geteuid (); |
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261 #else |
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262 return 0; |
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263 #endif |
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264 } |
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265 |
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266 int |
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267 octave_syscalls::pipe (int *fildes) |
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268 { |
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269 std::string msg; |
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270 return pipe (fildes); |
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271 } |
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272 |
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273 int |
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274 octave_syscalls::pipe (int *fildes, std::string& msg) |
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275 { |
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276 msg = std::string (); |
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277 |
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278 int status = -1; |
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279 |
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280 #if defined (HAVE_PIPE) |
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281 status = ::pipe (fildes); |
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282 |
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283 if (status < 0) |
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284 { |
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285 using namespace std; |
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286 msg = ::strerror (errno); |
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287 } |
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288 #else |
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289 msg = NOT_SUPPORTED ("pipe"); |
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290 #endif |
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291 |
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292 return status; |
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293 } |
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294 |
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295 pid_t |
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296 octave_syscalls::waitpid (pid_t pid, int options) |
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297 { |
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298 std::string msg; |
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299 return waitpid (pid, options, msg); |
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300 } |
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301 |
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302 pid_t |
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303 octave_syscalls::waitpid (pid_t pid, int options, std::string& msg) |
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304 { |
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305 msg = std::string (); |
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306 |
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307 int status = -1; |
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308 |
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309 #if defined (HAVE_WAITPID) |
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310 status = ::waitpid (pid, 0, options); |
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311 |
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312 if (status < 0) |
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313 { |
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314 using namespace std; |
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315 msg = ::strerror (errno); |
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316 } |
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317 #else |
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318 msg = NOT_SUPPORTED ("waitpid"); |
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319 #endif |
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320 |
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321 return status; |
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322 } |
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323 |
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324 /* |
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325 ;;; Local Variables: *** |
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326 ;;; mode: C++ *** |
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327 ;;; End: *** |
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328 */ |
