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5c112f1b62
Various glibc testcases use tmpnam in ways subject to race conditions (generate a temporary file name, then later open that file without O_EXCL). This patch fixes those tests to use mkstemp - generally a minimal local fix to use mkstemp instead of tmpnam, rather than a larger fix to use other testsuite infrastructure for temporary files. The unchanged use of tmpnam in posix/wordexp-test.c would fail safe in the event of a race (it's generating a name for use with mkdir rather than for a file to be opened for writing). Tested for x86_64. * grp/tst_fgetgrent.c: Include <unistd.h>. (main): Use mkstemp instead of tmpnam. * io/test-utime.c (main): Likewise. * posix/annexc.c (macrofile): Change to modifiable array. (get_null_defines): Use mkstemp instead of tmpnam. Do not remove macrofile here. * posix/bug-getopt1.c: Include <stdlib.h>. (do_test): Use mkstemp instead of tmpnam. * posix/bug-getopt2.c: Include <stdlib.h>. (do_test): Use mkstemp instead of tmpnam. * posix/bug-getopt3.c: Include <stdlib.h>. (do_test): Use mkstemp instead of tmpnam. * posix/bug-getopt4.c: Include <stdlib.h>. (do_test): Use mkstemp instead of tmpnam. * posix/bug-getopt5.c: Include <stdlib.h>. (do_test): Use mkstemp instead of tmpnam. * stdio-common/bug7.c: Include <stdlib.h> and <unistd.h>. (main): Use mkstemp instead of tmpnam. * stdio-common/tst-fdopen.c: Include <stdlib.h>. (main): Use mkstemp instead of tmpnam. * stdio-common/tst-ungetc.c: Include <stdlib.h>. (main): use mkstemp instead of tmpnam. * stdlib/isomac.c (macrofile): Change to modifiable array. (get_null_defines): Use mkstemp instead of tmpnam. Do not remove macrofile here.
90 lines
1.7 KiB
C
90 lines
1.7 KiB
C
/* BZ 11041 */
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#include <getopt.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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static const struct option opts[] =
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{
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{ "alpha", optional_argument, NULL, 'a' },
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{ NULL, 0, NULL, 0 }
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};
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static int
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one_test (const char *fmt, int argc, char *argv[], int n, int expected[n])
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{
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optind = 1;
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int res = 0;
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for (int i = 0; i < n; ++i)
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{
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rewind (stderr);
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if (ftruncate (fileno (stderr), 0) != 0)
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{
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puts ("cannot truncate file");
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return 1;
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}
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int c = getopt_long (argc, argv, fmt, opts, NULL);
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if (c != expected[i])
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{
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printf ("%s: format '%s' test %d failed: expected '%c', got '%c'\n",
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argv[0], fmt, i, expected[i], c);
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res = 1;
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}
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else if (optarg != NULL)
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{
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printf ("%s: format '%s' test %d failed: optarg is \"%s\", not NULL\n",
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argv[0], fmt, i, optarg);
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res = 1;
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}
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if (ftell (stderr) != 0)
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{
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printf ("%s: format '%s' test %d failed: printed to stderr\n",
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argv[0], fmt, i);
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res = 1;
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}
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}
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return res;
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}
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static int
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do_test (void)
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{
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char fname[] = "/tmp/bug-getopt4.XXXXXX";
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int fd = mkstemp (fname);
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if (fd == -1)
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{
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printf ("mkstemp failed: %m\n");
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return 1;
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}
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close (fd);
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if (freopen (fname, "w+", stderr) == NULL)
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{
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puts ("cannot redirect stderr");
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return 1;
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}
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remove (fname);
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int ret = one_test ("W;", 2,
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(char *[2]) { (char *) "bug-getopt4a", (char *) "--a" },
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1, (int [1]) { 'a' });
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ret |= one_test ("W;", 3,
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(char *[3]) { (char *) "bug-getopt4b", (char *) "-W",
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(char *) "a" },
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1, (int [1]) { 'a' });
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if (ret == 0)
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puts ("all OK");
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return ret;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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