1#include <stdio.h>
2#include <fcntl.h>
3#include <errno.h>
4#include <sys/stat.h>
5#include <string.h>
6#include <stdlib.h>
7#include "syscall.h"
8
9#define MAXTRIES 100
10
11char *tmpnam(char *buf)
12{
13 static char internal[L_tmpnam];
14 char s[] = "/tmp/tmpnam_XXXXXX";
15 int try;
16 int r;
17 for (try=0; try<MAXTRIES; try++) {
18 __randname(s+12);
19#ifdef SYS_readlink
20 r = __syscall(SYS_readlink, s, (char[1]){0}, 1);
21#else
22 r = __syscall(SYS_readlinkat, AT_FDCWD, s, (char[1]){0}, 1);
23#endif
24 if (r == -ENOENT) return strcpy(buf ? buf : internal, s);
25 }
26 return 0;
27}