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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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4299
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43 // We can't use csignal as kill is not in the std namespace, and picky |
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44 // compiler runtimes will also exclude it from global scope as well. |
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45 |
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46 #include <signal.h> |
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47 |
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48 #include "oct-syscalls.h" |
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49 #include "str-vec.h" |
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50 #include "syswait.h" |
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51 |
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52 #define NOT_SUPPORTED(nm) \ |
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53 nm ": not supported on this system" |
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54 |
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55 int |
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56 octave_syscalls::dup2 (int old_fd, int new_fd) |
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57 { |
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58 std::string msg; |
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59 return dup2 (old_fd, new_fd, msg); |
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60 } |
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61 |
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62 int |
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63 octave_syscalls::dup2 (int old_fd, int new_fd, std::string& msg) |
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64 { |
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65 msg = std::string (); |
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66 |
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67 int status = -1; |
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68 |
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69 #if defined (HAVE_DUP2) |
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70 status = ::dup2 (old_fd, new_fd); |
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71 |
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72 if (status < 0) |
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73 { |
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74 using namespace std; |
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75 msg = ::strerror (errno); |
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76 } |
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77 #else |
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78 msg = NOT_SUPPORTED ("dup2"); |
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79 #endif |
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80 |
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81 return status; |
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82 } |
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83 |
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84 int |
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85 octave_syscalls::execvp (const std::string& file, const string_vector& argv) |
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86 { |
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87 std::string msg; |
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88 return execvp (file, argv, msg); |
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89 } |
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90 |
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91 int |
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92 octave_syscalls::execvp (const std::string& file, const string_vector& args, |
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93 std::string& msg) |
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94 { |
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95 msg = std::string (); |
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96 |
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97 int status = -1; |
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98 |
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99 #if defined (HAVE_EXECVP) |
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100 char **argv = args.c_str_vec (); |
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101 |
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102 status = ::execvp (file.c_str (), argv); |
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103 |
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104 string_vector::delete_c_str_vec (argv); |
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105 |
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106 if (status < 0) |
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107 { |
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108 using namespace std; |
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109 msg = ::strerror (errno); |
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110 } |
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111 #else |
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112 msg = NOT_SUPPORTED ("execvp"); |
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113 #endif |
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114 |
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115 return status; |
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116 } |
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117 |
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118 int |
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119 octave_syscalls::fcntl (int fd, int cmd, long arg) |
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120 { |
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121 std::string msg; |
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122 return fcntl (fd, cmd, arg, msg); |
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123 } |
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124 |
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125 int |
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126 octave_syscalls::fcntl (int fd, int cmd, long arg, std::string& msg) |
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127 { |
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128 msg = std::string (); |
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129 |
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130 int status = -1; |
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131 |
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132 #if defined (HAVE_FCNTL) |
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133 status = ::fcntl (fd, cmd, arg); |
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134 |
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135 if (status < 0) |
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136 { |
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137 using namespace std; |
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138 msg = ::strerror (errno); |
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139 } |
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140 #else |
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141 msg = NOT_SUPPORTED ("fcntl"); |
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142 #endif |
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143 |
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144 return status; |
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145 } |
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146 |
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147 pid_t |
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148 octave_syscalls::fork (std::string& msg) |
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149 { |
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150 pid_t status = -1; |
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151 |
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152 #if defined (HAVE_FORK) |
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153 status = ::fork (); |
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154 |
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155 if (status < 0) |
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156 { |
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157 using namespace std; |
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158 msg = ::strerror (errno); |
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159 } |
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160 #else |
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161 msg = NOT_SUPPORTED ("fork"); |
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162 #endif |
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163 |
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164 return status; |
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165 } |
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166 |
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167 pid_t |
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168 octave_syscalls::vfork (std::string& msg) |
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169 { |
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170 pid_t status = -1; |
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171 |
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172 #if defined (HAVE_VFORK) || defined (HAVE_FORK) |
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173 #if defined (HAVE_VFORK) |
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174 status = ::vfork (); |
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175 #else |
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176 status = ::fork (); |
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177 #endif |
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178 |
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179 if (status < 0) |
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180 { |
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181 using namespace std; |
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182 msg = ::strerror (errno); |
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183 } |
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184 #else |
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185 msg = NOT_SUPPORTED ("vfork"); |
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186 #endif |
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187 |
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188 return status; |
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189 } |
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190 |
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191 pid_t |
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192 octave_syscalls::getpgrp (std::string& msg) |
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193 { |
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194 pid_t status = -1; |
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195 |
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196 #if defined (HAVE_GETPGRP) |
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197 status = ::getpgrp (); |
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198 |
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199 if (status < 0) |
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200 { |
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201 using namespace std; |
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202 msg = ::strerror (errno); |
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203 } |
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204 #else |
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205 msg = NOT_SUPPORTED ("getpgrp"); |
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206 #endif |
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207 |
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208 return status; |
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209 } |
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210 |
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211 pid_t |
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212 octave_syscalls::getpid (void) |
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213 { |
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214 #if defined (HAVE_GETPID) |
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215 return ::getpid (); |
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216 #else |
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217 return 0; |
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218 #endif |
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219 } |
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220 |
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221 pid_t |
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222 octave_syscalls::getppid (void) |
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223 { |
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224 #if defined (HAVE_GETPPID) |
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225 return ::getppid (); |
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226 #else |
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227 return 0; |
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228 #endif |
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229 } |
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230 |
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231 gid_t |
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232 octave_syscalls::getgid (void) |
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233 { |
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234 #if defined (HAVE_GETGID) |
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235 return ::getgid (); |
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236 #else |
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237 return 0; |
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238 #endif |
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239 } |
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240 |
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241 gid_t |
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242 octave_syscalls::getegid (void) |
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243 { |
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244 #if defined (HAVE_GETEGID) |
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245 return ::getegid (); |
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246 #else |
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247 return 0; |
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248 #endif |
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249 } |
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250 |
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251 uid_t |
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252 octave_syscalls::getuid (void) |
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253 { |
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254 #if defined (HAVE_GETUID) |
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255 return ::getuid (); |
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256 #else |
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257 return 0; |
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258 #endif |
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259 } |
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260 |
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261 uid_t |
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262 octave_syscalls::geteuid (void) |
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263 { |
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264 #if defined (HAVE_GETEUID) |
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265 return ::geteuid (); |
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266 #else |
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267 return 0; |
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268 #endif |
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269 } |
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270 |
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271 int |
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272 octave_syscalls::pipe (int *fildes) |
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273 { |
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274 std::string msg; |
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275 return pipe (fildes); |
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276 } |
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277 |
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278 int |
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279 octave_syscalls::pipe (int *fildes, std::string& msg) |
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280 { |
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281 msg = std::string (); |
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282 |
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283 int status = -1; |
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284 |
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285 #if defined (HAVE_PIPE) |
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286 status = ::pipe (fildes); |
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287 |
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288 if (status < 0) |
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289 { |
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290 using namespace std; |
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291 msg = ::strerror (errno); |
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292 } |
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293 #else |
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294 msg = NOT_SUPPORTED ("pipe"); |
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295 #endif |
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296 |
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297 return status; |
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298 } |
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299 |
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300 pid_t |
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301 octave_syscalls::waitpid (pid_t pid, int options) |
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302 { |
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303 std::string msg; |
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304 return waitpid (pid, options, msg); |
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305 } |
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306 |
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307 pid_t |
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308 octave_syscalls::waitpid (pid_t pid, int options, std::string& msg) |
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309 { |
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310 msg = std::string (); |
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311 |
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312 int status = -1; |
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313 |
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314 #if defined (HAVE_WAITPID) |
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315 status = ::waitpid (pid, 0, options); |
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316 |
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317 if (status < 0) |
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318 { |
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319 using namespace std; |
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320 msg = ::strerror (errno); |
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321 } |
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322 #else |
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323 msg = NOT_SUPPORTED ("waitpid"); |
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324 #endif |
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325 |
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326 return status; |
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327 } |
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328 |
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329 int |
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330 octave_syscalls::kill (pid_t pid, int sig) |
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331 { |
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332 std::string msg; |
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333 return kill (pid, sig, msg); |
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334 } |
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335 |
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336 int |
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337 octave_syscalls::kill (pid_t pid, int sig, std::string& msg) |
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338 { |
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339 msg = std::string (); |
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340 |
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341 int status = -1; |
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342 |
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343 #if defined (HAVE_KILL) |
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344 status = ::kill (pid, sig); |
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345 |
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346 if (status < 0) |
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347 { |
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348 using namespace std; |
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349 msg = ::strerror (errno); |
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350 } |
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351 #else |
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352 msg = NOT_SUPPORTED ("kill"); |
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353 #endif |
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354 |
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355 return status; |
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356 } |
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357 |
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358 /* |
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359 ;;; Local Variables: *** |
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360 ;;; mode: C++ *** |
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361 ;;; End: *** |
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362 */ |
