glibc/posix/bug-getopt4.c
2010-04-07 22:59:40 -07:00

87 lines
1.6 KiB
C

/* BZ 11041 */
#include <getopt.h>
#include <unistd.h>
#include <stdio.h>
static const struct option opts[] =
{
{ "alpha", optional_argument, NULL, 'a' },
{ NULL, 0, NULL, 0 }
};
static int
one_test (const char *fmt, int argc, char *argv[], int n, int expected[n])
{
optind = 1;
int res = 0;
for (int i = 0; i < n; ++i)
{
rewind (stderr);
if (ftruncate (fileno (stderr), 0) != 0)
{
puts ("cannot truncate file");
return 1;
}
int c = getopt_long (argc, argv, fmt, opts, NULL);
if (c != expected[i])
{
printf ("format '%s' test %d failed: expected '%c', got '%c'\n",
fmt, i, expected[i], c);
res = 1;
}
else if (optarg != NULL)
{
printf ("format '%s' test %d failed: optarg is \"%s\", not NULL\n",
fmt, i, optarg);
res = 1;
}
if (ftell (stderr) != 0)
{
printf ("format '%s' test %d failed: printed to stderr\n",
fmt, i);
res = 1;
}
}
return res;
}
static int
do_test (void)
{
char *fname = tmpnam (NULL);
if (fname == NULL)
{
puts ("cannot generate name for temporary file");
return 1;
}
if (freopen (fname, "w+", stderr) == NULL)
{
puts ("cannot redirect stderr");
return 1;
}
remove (fname);
int ret = one_test ("W;", 2,
(char *[2]) { (char *) "bug-getopt4", (char *) "--a" },
1, (int [1]) { 'a' });
ret |= one_test ("W;", 3,
(char *[3]) { (char *) "bug-getopt4", (char *) "-W",
(char *) "a" },
1, (int [1]) { 'a' });
if (ret == 0)
puts ("all OK");
return ret;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"