| 1 | /* |
1 | /* |
| 2 | util.C -- process management and other utility functions |
2 | util.C -- process management and other utility functions |
| 3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
| 4 | |
4 | |
| 5 | Some of these are taken from tinc, see the AUTHORS file. |
5 | Some of these are taken from tinc, see the AUTHORS file. |
| 6 | |
6 | |
| 7 | This file is part of GVPE. |
7 | This file is part of GVPE. |
| 8 | |
8 | |
| 9 | GVPE is free software; you can redistribute it and/or modify |
9 | GVPE is free software; you can redistribute it and/or modify it |
| 10 | it under the terms of the GNU General Public License as published by |
10 | under the terms of the GNU General Public License as published by the |
| 11 | the Free Software Foundation; either version 2 of the License, or |
11 | Free Software Foundation; either version 3 of the License, or (at your |
| 12 | (at your option) any later version. |
12 | option) any later version. |
| 13 | |
13 | |
| 14 | This program is distributed in the hope that it will be useful, |
14 | This program is distributed in the hope that it will be useful, but |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| 17 | GNU General Public License for more details. |
17 | Public License for more details. |
| 18 | |
18 | |
| 19 | You should have received a copy of the GNU General Public License |
19 | You should have received a copy of the GNU General Public License along |
| 20 | along with gvpe; if not, write to the Free Software |
20 | with this program; if not, see <http://www.gnu.org/licenses/>. |
| 21 | Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
21 | |
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22 | Additional permission under GNU GPL version 3 section 7 |
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23 | |
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24 | If you modify this Program, or any covered work, by linking or |
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25 | combining it with the OpenSSL project's OpenSSL library (or a modified |
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26 | version of that library), containing parts covered by the terms of the |
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27 | OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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28 | additional permission to convey the resulting work. Corresponding |
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29 | Source for a non-source form of such a combination shall include the |
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30 | source code for the parts of OpenSSL used as well as that of the |
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31 | covered work. |
| 22 | */ |
32 | */ |
| 23 | |
33 | |
| 24 | #include "config.h" |
34 | #include "config.h" |
| 25 | |
35 | |
| 26 | #include <cstdio> |
36 | #include <cstdio> |
| … | |
… | |
| 127 | slog (L_INFO, _("gvpe daemon %s (%s %s) starting"), VERSION, __DATE__, __TIME__); |
137 | slog (L_INFO, _("gvpe daemon %s (%s %s) starting"), VERSION, __DATE__, __TIME__); |
| 128 | |
138 | |
| 129 | return 0; |
139 | return 0; |
| 130 | } |
140 | } |
| 131 | |
141 | |
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142 | pid_t |
| 132 | bool run_script (const run_script_cb &cb, bool wait) |
143 | run_script (const run_script_cb &cb, bool wait) |
| 133 | { |
144 | { |
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145 | sigset_t oldset; |
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146 | |
| 134 | if (wait) |
147 | if (wait) |
| 135 | signal (SIGCHLD, SIG_DFL); // this is extremely ugly, but I did not feel like implementing a complete wait() event logic. It's easier to write this long comment to make your editor happy. |
148 | { |
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149 | sigset_t sigchld; |
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150 | sigemptyset (&sigchld); |
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151 | sigaddset (&sigchld, SIGCHLD); |
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152 | sigprocmask (SIG_BLOCK, &sigchld, &oldset); |
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153 | } |
| 136 | |
154 | |
| 137 | int pid = fork (); |
155 | pid_t pid = fork (); |
| 138 | |
156 | |
| 139 | if (pid == 0) |
157 | if (pid == 0) |
| 140 | { |
158 | { |
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159 | sigprocmask (SIG_SETMASK, &oldset, 0); |
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160 | |
| 141 | execl ("/bin/sh", "/bin/sh", "-c", cb (), (char *) 0); |
161 | execl ("/bin/sh", "/bin/sh", "-c", cb (), (char *) 0); |
| 142 | exit (EXIT_FAILURE); |
162 | exit (EXIT_FAILURE); |
| 143 | } |
163 | } |
| 144 | else if (pid > 0) |
164 | else if (pid > 0) |
| 145 | { |
165 | { |
| 146 | if (wait) |
166 | if (wait) |
| 147 | { |
167 | { |
| 148 | int status; |
168 | int status; |
| 149 | int res = waitpid (pid, &status, 0); |
169 | int res = waitpid (pid, &status, 0); |
| 150 | |
170 | |
| 151 | signal (SIGCHLD, SIG_IGN); |
171 | sigprocmask (SIG_SETMASK, &oldset, 0); |
| 152 | |
172 | |
| 153 | if (res < 0) |
173 | if (res < 0) |
| 154 | { |
174 | { |
| 155 | slog (L_WARN, _("waiting for an external command failed: %s."), |
175 | slog (L_WARN, _("waiting for an external command failed: %s."), |
| 156 | strerror (errno)); |
176 | strerror (errno)); |
| 157 | return false; |
177 | return 0; |
| 158 | } |
178 | } |
| 159 | else if (!WIFEXITED (status) || WEXITSTATUS (status) != EXIT_SUCCESS) |
179 | else if (!WIFEXITED (status) || WEXITSTATUS (status) != EXIT_SUCCESS) |
| 160 | { |
180 | { |
| 161 | slog (L_WARN, _("external command returned with exit status %d (%04x)."), |
181 | slog (L_WARN, _("external command returned with exit status %d (%04x)."), |
| 162 | WEXITSTATUS (status), status); |
182 | WEXITSTATUS (status), status); |
| 163 | return false; |
183 | return 0; |
| 164 | } |
184 | } |
| 165 | } |
185 | } |
| 166 | } |
186 | } |
| 167 | else |
187 | else |
| 168 | { |
188 | { |
| 169 | slog (L_ERR, _("unable to fork, exiting: %s"), strerror (errno)); |
189 | slog (L_ERR, _("unable to fork, exiting: %s"), strerror (errno)); |
| 170 | exit (EXIT_FAILURE); |
190 | exit (EXIT_FAILURE); |
| 171 | } |
191 | } |
| 172 | |
192 | |
| 173 | return true; |
193 | return pid; |
| 174 | } |
194 | } |
| 175 | |
195 | |
| 176 | #if ENABLE_HTTP_PROXY |
196 | #if ENABLE_HTTP_PROXY |
| 177 | // works like strdup |
197 | // works like strdup |
| 178 | u8 * |
198 | u8 * |
