mirror of
https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
|
|
* minit version 0.9.1 by Felix von Leitner
|
|
* ported to busybox by Glenn McGrath <bug1@optushome.com.au>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <sys/fcntl.h>
|
|
|
|
#include "busybox.h"
|
|
/* purpose: argv[1] is the full path to a PID file,
|
|
* argv+2 is the daemon to run.
|
|
* the daemon is expected to fork in the background and write its PID in
|
|
* the pid file.
|
|
*/
|
|
|
|
extern int pidfilehack_main(int argc, char **argv)
|
|
{
|
|
int count = 0;
|
|
|
|
if (argc < 3) {
|
|
bb_show_usage();
|
|
|
|
}
|
|
if (unlink(argv[2]) && (errno != ENOENT)) {
|
|
bb_perror_msg("could not remove pid file");
|
|
}
|
|
switch (fork()) {
|
|
case -1:
|
|
bb_perror_msg("could not fork");
|
|
return 2;
|
|
case 0: /* child */
|
|
execv(argv[3], argv + 3);
|
|
bb_perror_msg("execvp failed");
|
|
return 3;
|
|
}
|
|
do {
|
|
int fd = open(argv[2], O_RDONLY);
|
|
|
|
if (fd >= 0) {
|
|
static char buf[100] = "-P";
|
|
int len = read(fd, buf + 2, 100);
|
|
|
|
close(fd);
|
|
if (len > 0) {
|
|
char *_argv[] = { "msvc", 0, 0, 0 };
|
|
if (buf[len + 1] == '\n') {
|
|
buf[len + 1] = 0;
|
|
} else {
|
|
buf[len + 2] = 0;
|
|
}
|
|
_argv[1] = buf;
|
|
_argv[2] = argv[1];
|
|
execvp(_argv[0], _argv);
|
|
bb_perror_msg("execvp failed");
|
|
return 0;
|
|
}
|
|
}
|
|
sleep(1);
|
|
} while (++count < 30);
|
|
|
|
return(0);
|
|
}
|