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 <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <skalibs/posixplz.h>
#include <skalibs/tai.h>
#include <skalibs/stralloc.h>
#include <skalibs/djbunix.h>
#include "ftrig1.h"
int ftrig1_make (ftrig1_t *f, char const *path)
{
ftrig1_t ff = FTRIG1_ZERO ;
size_t pathlen = strlen(path) ;
char tmp[pathlen + FTRIG1_PREFIXLEN + 36] ;
memcpy(tmp, path, pathlen) ;
tmp[pathlen] = '/' ; tmp[pathlen+1] = '.' ;
memcpy(tmp + pathlen + 2, FTRIG1_PREFIX, FTRIG1_PREFIXLEN) ;
tmp[pathlen + 2 + FTRIG1_PREFIXLEN] = ':' ;
if (!timestamp(tmp + pathlen + 3 + FTRIG1_PREFIXLEN)) return 0 ;
memcpy(tmp + pathlen + FTRIG1_PREFIXLEN + 28, ":XXXXXX", 8) ;
ff.fd = mkptemp2(tmp, O_NONBLOCK|O_CLOEXEC) ;
if (ff.fd == -1) return 0 ;
ff.fdw = open_write(tmp) ;
if (ff.fdw == -1) goto err1 ;
if (!stralloc_ready(&ff.name, pathlen + FTRIG1_PREFIXLEN + 36)) goto err2 ;
stralloc_copyb(&ff.name, tmp, pathlen + 1) ;
stralloc_catb(&ff.name, tmp + pathlen + 2, FTRIG1_PREFIXLEN + 34) ;
if (rename(tmp, ff.name.s) == -1) goto err3 ;
*f = ff ;
return 1 ;
err3:
stralloc_free(&ff.name) ;
err2:
fd_close(ff.fdw) ;
err1:
fd_close(ff.fd) ;
unlink_void(tmp) ;
return 0 ;
}
|
