blob: 64e67c322013d81d0304bb411b6829796f3dacea (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
/* vi: set sw=4 ts=4: */
/*
* pid file routines
*
* Copyright (C) 2007 by Stephane Billiart <stephane.billiart@gmail.com>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* Override ENABLE_FEATURE_PIDFILE */
#define WANT_PIDFILE 1
#include "libbb.h"
int write_pidfile(const char *path)
{
int pid_fd;
char *end;
char buf[sizeof(int)*3 + 2];
if (!path)
return 1;
/* we will overwrite stale pidfile */
pid_fd = open(path, O_WRONLY|O_CREAT|O_TRUNC, 0666);
if (pid_fd < 0)
return 0;
/* few bytes larger, but doesn't use stdio */
end = utoa_to_buf(getpid(), buf, sizeof(buf));
*end = '\n';
full_write(pid_fd, buf, end - buf + 1);
close(pid_fd);
return 1;
}
|
