blob: d4bbe73dbf9c5f42d472ede77b9154ac64d58a7e (
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
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/* ISC license. */
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <skalibs/posixplz.h>
#include <skalibs/allreadwrite.h>
#include <skalibs/djbunix.h>
#include <s6/s6-supervise.h>
#ifdef PATH_MAX
# define S6_PATH_MAX PATH_MAX
#else
# define S6_PATH_MAX 4096
#endif
void s6_supervise_unlink (char const *scandir, char const *name, uint32_t options)
{
int e = errno ;
int fd = -1 ;
size_t scandirlen = strlen(scandir) ;
size_t namelen = strlen(name) ;
char fn[scandirlen + namelen + sizeof(S6_SUPERVISE_CTLDIR) + 10] ;
memcpy(fn, scandir, scandirlen) ;
fn[scandirlen] = '/' ;
memcpy(fn + scandirlen + 1, name, namelen) ;
if (options & 1)
{
fn[scandirlen + 1 + namelen] = '/' ;
memcpy(fn + scandirlen + 1 + namelen + 1, S6_SUPERVISE_CTLDIR, sizeof(S6_SUPERVISE_CTLDIR) - 1) ;
memcpy(fn + scandirlen + 1 + namelen + sizeof(S6_SUPERVISE_CTLDIR), "/control", 9) ;
fd = open_write(fn) ;
}
fn[scandirlen + 1 + namelen] = 0 ;
unlink_void(fn) ;
if (fd >= 0)
{
fd_write(fd, "xd", 1 + !!(options & 2)) ;
fd_close(fd) ;
}
errno = e ;
}
|
