blob: 3aebd974a5e506a61ae94198c360d30ec08d79d9 (
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
|
/* ISC license. */
#include <sys/stat.h>
#include <errno.h>
#include <unistd.h>
#include <skalibs/allreadwrite.h>
#include <skalibs/djbunix.h>
int openwritenclose_unsafe_internal (char const *fn, char const *s, size_t len, dev_t *dev, ino_t *ino, int dosync)
{
struct stat st ;
int fd = open_trunc(fn) ;
if (fd < 0) return 0 ;
if (allwrite(fd, s, len) < len) goto fail ;
if ((dev || ino) && (fstat(fd, &st) < 0)) goto fail ;
if (dosync && (fd_sync(fd) < 0) && (errno != EINVAL)) goto fail ;
fd_close(fd) ;
if (dev) *dev = st.st_dev ;
if (ino) *ino = st.st_ino ;
return 1 ;
fail:
{
int e = errno ;
fd_close(fd) ;
unlink(fn) ;
errno = e ;
}
return 0 ;
}
|
