1/* BZ 11039 */
2#include <unistd.h>
3#include <stdio.h>
4#include <stdlib.h>
5
6static int
7one_test (const char *fmt, int argc, char *argv[], int expected[argc - 1])
8{
9 int res = 0;
10 for (int i = 0; i < argc - 1; ++i)
11 {
12 rewind (stderr);
13 if (ftruncate (fd: fileno (stderr), length: 0) != 0)
14 {
15 puts (s: "cannot truncate file");
16 return 1;
17 }
18
19 int c = getopt (argc: argc, argv: argv, shortopts: fmt);
20 if (c != expected[i])
21 {
22 printf (format: "format '%s' test %d failed: expected '%c', got '%c'\n",
23 fmt, i, expected[i], c);
24 res = 1;
25 }
26 if (ftell (stderr) == 0)
27 {
28 printf (format: "format '%s' test %d failed: not printed to stderr\n",
29 fmt, i);
30 res = 1;
31 }
32 }
33
34 return res;
35}
36
37
38static int
39do_test (void)
40{
41 char fname[] = "/tmp/bug-getopt2.XXXXXX";
42 int fd = mkstemp (template: fname);
43 if (fd == -1)
44 {
45 printf (format: "mkstemp failed: %m\n");
46 return 1;
47 }
48 close (fd: fd);
49
50 if (freopen (filename: fname, modes: "w+", stderr) == NULL)
51 {
52 puts (s: "cannot redirect stderr");
53 return 1;
54 }
55
56 remove (fname);
57
58 optind = 0;
59 int ret = one_test (fmt: "+a", argc: 2,
60 argv: (char *[2]) { (char *) "bug-getopt2", (char *) "-+" },
61 expected: (int [1]) { '?' });
62
63 optind = 1;
64 ret |= one_test (fmt: "+a", argc: 2,
65 argv: (char *[2]) { (char *) "bug-getopt2", (char *) "-+" },
66 expected: (int [1]) { '?' });
67
68 if (ret == 0)
69 puts (s: "all OK");
70
71 return ret;
72}
73
74#define TEST_FUNCTION do_test ()
75#include "../test-skeleton.c"
76

source code of glibc/posix/bug-getopt2.c