masqmail-0.2
view src/child.c @ 91:3e7136221104
correct masqmail path in rmail script; remove docs on uninstall
on install the correct path to the masqmail executable gets
inserted into the rmail script now.
now documentation, examples, and the templates are removed on
uninstall. Empty directories are the only thing that may remain
if one installs masqmail into an unusual path.
| author | meillo@marmaro.de |
|---|---|
| date | Mon, 21 Jun 2010 09:40:16 +0200 |
| parents | 26e34ae9a3e3 |
| children |
line source
1 /* child.c, Copyright (C) 2000 by Oliver Kurth,
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
16 */
18 #include <errno.h>
19 #include <stdio.h>
20 #include <stdlib.h>
21 #include <unistd.h>
22 #include <signal.h>
23 #include <sys/types.h>
24 #include <sys/socket.h>
25 #include <syslog.h>
26 #include <string.h>
28 #include "masqmail.h"
31 int
32 child(const char *command)
33 {
34 int pipe[2];
36 if (socketpair(AF_UNIX, SOCK_STREAM, 0, pipe) == 0) {
37 pid_t pid;
39 pid = fork();
40 if (pid == 0) {
41 int i, max_fd = sysconf(_SC_OPEN_MAX);
42 /* child */
43 dup2(pipe[0], 0);
44 dup2(pipe[0], 1);
45 dup2(pipe[0], 2);
47 if (max_fd <= 0)
48 max_fd = 64;
49 for (i = 3; i < max_fd; i++)
50 close(i);
52 {
53 char *argv[] = { "/bin/sh", "-c", (char *) command, NULL };
54 execve(*argv, argv, NULL);
55 }
56 logwrite(LOG_ALERT, "execve failed: %s\n", strerror(errno));
57 _exit(EXIT_FAILURE);
58 } else if (pid == -1) {
59 return -1;
60 } else {
61 close(pipe[0]);
62 return pipe[1];
63 }
64 }
65 return -2;
66 }