masqmail: src/child.c annotate

annotate src/child.c @ 421:f37384470855

Changed lockdir to /var/lock/masqmail; Create lockdir and piddir on startup. Moved the lockdir out of the spool dir. (When /var/lock is a ramdisk we do well to have the lock files there.) Added the new configure option --with-lockdir to change that location. Nontheless, if we run_as_user, then lock files are always stored in the spool dir directly. Instead of installing the lockdir and piddir at installation time, we create them on startup time now if they are missing. This is necessary if lockdir or piddir are a tmpfs.

author	markus schnalke <meillo@marmaro.de>
date	Wed, 30 May 2012 09:38:38 +0200
parents	885e3d886199
children

rev	line source
367 b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	1 /*
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	2 ** child.c
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	3 ** Copyright (C) 2000 by Oliver Kurth,
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	4 **
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	5 ** This program is free software; you can redistribute it and/or modify
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	6 ** it under the terms of the GNU General Public License as published by
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	7 ** the Free Software Foundation; either version 2 of the License, or
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	8 ** (at your option) any later version.
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	9 **
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	10 ** This program is distributed in the hope that it will be useful,
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	13 ** GNU General Public License for more details.
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	14 **
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	15 ** You should have received a copy of the GNU General Public License
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	16 ** along with this program; if not, write to the Free Software
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	17 ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line markus schnalke <meillo@marmaro.de> parents: 262 diff changeset	18 */
0 08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	19
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	20 #include <errno.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	21 #include <stdio.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	22 #include <stdlib.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	23 #include <unistd.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	24 #include <signal.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	25 #include <sys/types.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	26 #include <sys/socket.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	27 #include <syslog.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	28 #include <string.h>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	29
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	30 #include "masqmail.h"
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	31
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	32
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	33 int
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	34 child(const char *command)
0 08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	35 {
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	36 int pipe[2];
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	37
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	38 if (socketpair(AF_UNIX, SOCK_STREAM, 0, pipe) == 0) {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	39 pid_t pid;
0 08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	40
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	41 pid = fork();
391 0ca270ca11fa Refactoring and code layouting. markus schnalke <meillo@marmaro.de> parents: 367 diff changeset	42 if (pid == -1) {
0ca270ca11fa Refactoring and code layouting. markus schnalke <meillo@marmaro.de> parents: 367 diff changeset	43 return -1;
401 885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	44
391 0ca270ca11fa Refactoring and code layouting. markus schnalke <meillo@marmaro.de> parents: 367 diff changeset	45 } else if (pid == 0) {
0ca270ca11fa Refactoring and code layouting. markus schnalke <meillo@marmaro.de> parents: 367 diff changeset	46 /* child */
401 885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	47 char argv[] = { "/bin/sh", "-c", (char )command,
885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	48 NULL };
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	49 int i, max_fd = sysconf(_SC_OPEN_MAX);
401 885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	50
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	51 dup2(pipe[0], 0);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	52 dup2(pipe[0], 1);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	53 dup2(pipe[0], 2);
0 08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	54
401 885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	55 if (max_fd <= 0) {
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	56 max_fd = 64;
401 885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	57 }
885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	58 for (i = 3; i < max_fd; i++) {
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	59 close(i);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	60 }
401 885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	61 execve(*argv, argv, NULL);
391 0ca270ca11fa Refactoring and code layouting. markus schnalke <meillo@marmaro.de> parents: 367 diff changeset	62 logwrite(LOG_ALERT, "execve failed: %s\n",
0ca270ca11fa Refactoring and code layouting. markus schnalke <meillo@marmaro.de> parents: 367 diff changeset	63 strerror(errno));
262 fc1c6425c024 s/EXIT_SUCCESS/0/ && s/EXIT_FAILURE/1/ markus schnalke <meillo@marmaro.de> parents: 71 diff changeset	64 _exit(1);
401 885e3d886199 Various minor refactoring. markus schnalke <meillo@marmaro.de> parents: 391 diff changeset	65
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	66 } else {
391 0ca270ca11fa Refactoring and code layouting. markus schnalke <meillo@marmaro.de> parents: 367 diff changeset	67 /* parent */
10 26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	68 close(pipe[0]);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	69 return pipe[1];
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	70 }
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	71 }
26e34ae9a3e3 changed indention and line wrapping to a more consistent style meillo@marmaro.de parents: 0 diff changeset	72 return -2;
0 08114f7dcc23 this is masqmail-0.2.21 from oliver kurth meillo@marmaro.de parents: diff changeset	73 }

Mercurial > masqmail

annotate src/child.c @ 421:f37384470855