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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.
76 lines
1.4 KiB
C
76 lines
1.4 KiB
C
/* BZ 11039 */
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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 int
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one_test (const char *fmt, int argc, char *argv[], int expected[argc - 1])
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{
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int res = 0;
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for (int i = 0; i < argc - 1; ++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 (argc, argv, fmt);
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if (c != expected[i])
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{
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printf ("format '%s' test %d failed: expected '%c', got '%c'\n",
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fmt, i, expected[i], c);
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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 ("format '%s' test %d failed: not printed to stderr\n",
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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-getopt2.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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optind = 0;
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int ret = one_test ("+a", 2,
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(char *[2]) { (char *) "bug-getopt2", (char *) "-+" },
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(int [1]) { '?' });
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optind = 1;
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ret |= one_test ("+a", 2,
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(char *[2]) { (char *) "bug-getopt2", (char *) "-+" },
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(int [1]) { '?' });
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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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