Mercurial > gnulib
view tests/test-openat.c @ 17292:3a09cc104f4c
tests: don't assume fd 99 is closed
* tests/test-accept.c, tests/test-accept4.c, tests/test-bind.c:
* tests/test-close.c, tests/test-connect.c, tests/test-dprintf.c:
* tests/test-dup.c, tests/test-dup2.c, tests/test-faccessat.c:
* tests/test-fchdir.c, tests/test-fchmod.c, tests/test-fchmodat.c:
* tests/test-fchown.c, tests/test-fchownat.c, tests/test-fclose.c:
* tests/test-fdatasync.c, tests/test-fdopen.c, tests/test-fdopendir.c:
* tests/test-fflush.c, tests/test-fgetc.c, tests/test-fputc.c:
* tests/test-fread.c, tests/test-freopen.c, tests/test-fseeko4.c:
* tests/test-fstat.c, tests/test-fstatat.c, tests/test-fsync.c:
* tests/test-ftello4.c, tests/test-ftruncate.c, tests/test-futimens.h:
* tests/test-fwrite.c, tests/test-getpeername.c:
* tests/test-getsockname.c, tests/test-getsockopt.c:
* tests/test-grantpt.c, tests/test-ioctl.c, tests/test-isatty.c:
* tests/test-linkat.c, tests/test-listen.c, tests/test-lseek.c:
* tests/test-mkdirat.c, tests/test-mkfifoat.c, tests/test-openat.c:
* tests/test-pread.c, tests/test-pwrite.c, tests/test-read.c:
* tests/test-readlinkat.c, tests/test-recv.c, tests/test-recvfrom.c:
* tests/test-renameat.c, tests/test-select.h, tests/test-send.c:
* tests/test-sendto.c, tests/test-setsockopt.c, tests/test-shutdown.c:
* tests/test-symlinkat.c, tests/test-ttyname_r.c:
* tests/test-unlinkat.c, tests/test-unlockpt.c:
* tests/test-utimensat.c, tests/test-vdprintf.c, tests/test-write.c:
Close file descriptor 99, instead of assuming it's already closed.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 22 Jan 2013 09:43:22 -0800 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* Test that openat works. Copyright (C) 2009-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Written by Eric Blake <ebb9@byu.net>, 2009. */ #include <config.h> #include <fcntl.h> #include "signature.h" SIGNATURE_CHECK (openat, int, (int, char const *, int, ...)); #include <errno.h> #include <stdarg.h> #include <stdbool.h> #include <stdio.h> #include <unistd.h> #include "progname.h" #include "macros.h" #define BASE "test-openat.t" #include "test-open.h" static int dfd = AT_FDCWD; /* Wrapper around openat to test open behavior. */ static int do_open (char const *name, int flags, ...) { if (flags & O_CREAT) { mode_t mode = 0; va_list arg; va_start (arg, flags); /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4 creates crashing code when 'mode_t' is smaller than 'int'. */ mode = va_arg (arg, PROMOTED_MODE_T); va_end (arg); return openat (dfd, name, flags, mode); } return openat (dfd, name, flags); } int main (int argc _GL_UNUSED, char *argv[]) { int result; set_program_name (argv[0]); /* Test behaviour for invalid file descriptors. */ { errno = 0; ASSERT (openat (-1, "foo", O_RDONLY) == -1); ASSERT (errno == EBADF); } { close (99); errno = 0; ASSERT (openat (99, "foo", O_RDONLY) == -1); ASSERT (errno == EBADF); } /* Basic checks. */ result = test_open (do_open, false); dfd = open (".", O_RDONLY); ASSERT (0 <= dfd); ASSERT (test_open (do_open, false) == result); ASSERT (close (dfd) == 0); /* Check that even when *-safer modules are in use, plain openat can land in fd 0. Do this test last, since it is destructive to stdin. */ ASSERT (close (STDIN_FILENO) == 0); ASSERT (openat (AT_FDCWD, ".", O_RDONLY) == STDIN_FILENO); { dfd = open (".", O_RDONLY); ASSERT (STDIN_FILENO < dfd); ASSERT (chdir ("..") == 0); ASSERT (close (STDIN_FILENO) == 0); ASSERT (openat (dfd, ".", O_RDONLY) == STDIN_FILENO); ASSERT (close (dfd) == 0); } return result; }