2000-10-26 17:14:02 +08:00
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/* Tests for fcntl.
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2022-01-02 02:54:23 +08:00
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Copyright (C) 2000-2022 Free Software Foundation, Inc.
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2001-07-06 12:58:11 +08:00
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This file is part of the GNU C Library.
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2000-10-26 17:14:02 +08:00
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 12:58:11 +08:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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2000-10-26 17:14:02 +08:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2001-07-06 12:58:11 +08:00
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Lesser General Public License for more details.
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2000-10-26 17:14:02 +08:00
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2001-07-06 12:58:11 +08:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-10 07:18:22 +08:00
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License along with the GNU C Library; if not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 13:40:42 +08:00
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<https://www.gnu.org/licenses/>. */
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2000-10-26 17:14:02 +08:00
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#include <errno.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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/* Prototype for our test function. */
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extern void do_prepare (int argc, char *argv[]);
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extern int do_test (int argc, char *argv[]);
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/* We have a preparation function. */
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#define PREPARE do_prepare
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#include "../test-skeleton.c"
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/* Name of the temporary files. */
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static char *name;
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2015-10-22 07:37:02 +08:00
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/* File descriptor to temporary file. */
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static int fd;
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2000-10-26 17:14:02 +08:00
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void
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do_prepare (int argc, char *argv[])
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{
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2006-09-12 19:44:01 +08:00
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size_t name_len;
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2000-10-26 17:14:02 +08:00
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name_len = strlen (test_dir);
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2016-06-12 05:50:16 +08:00
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name = xmalloc (name_len + sizeof ("/fcntlXXXXXX"));
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2000-10-26 17:14:02 +08:00
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mempcpy (mempcpy (name, test_dir, name_len),
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"/fcntlXXXXXX", sizeof ("/fcntlXXXXXX"));
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2015-10-22 07:37:02 +08:00
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/* Create the temporary file. */
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fd = mkstemp (name);
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if (fd == -1)
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{
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printf ("cannot open temporary file: %m\n");
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exit (1);
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}
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2000-10-26 17:14:02 +08:00
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add_temp_file (name);
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}
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int
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do_test (int argc, char *argv[])
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{
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int fd2;
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int fd3;
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struct stat64 st;
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int val;
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int result = 0;
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if (fstat64 (fd, &st) != 0)
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{
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printf ("cannot stat test file: %m\n");
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return 1;
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}
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if (! S_ISREG (st.st_mode) || st.st_size != 0)
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{
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puts ("file not created correctly");
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return 1;
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}
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/* Get the flags with fcntl(). */
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val = fcntl (fd, F_GETFL);
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if (val == -1)
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{
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printf ("fcntl(fd, F_GETFL) failed: %m\n");
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result = 1;
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}
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else if ((val & O_ACCMODE) != O_RDWR)
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{
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puts ("temporary file not opened for read and write");
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result = 1;
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}
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/* Set the flags to something else. */
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if (fcntl (fd, F_SETFL, O_RDONLY) == -1)
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{
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printf ("fcntl(fd, F_SETFL, O_RDONLY) failed: %m\n");
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result = 1;
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}
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val = fcntl (fd, F_GETFL);
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if (val == -1)
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{
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printf ("fcntl(fd, F_GETFL) after F_SETFL failed: %m\n");
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result = 1;
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}
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else if ((val & O_ACCMODE) != O_RDWR)
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{
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puts ("temporary file access mode changed");
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result = 1;
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}
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/* Set the flags to something else. */
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if (fcntl (fd, F_SETFL, O_APPEND) == -1)
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{
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printf ("fcntl(fd, F_SETFL, O_APPEND) failed: %m\n");
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result = 1;
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}
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val = fcntl (fd, F_GETFL);
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if (val == -1)
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{
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printf ("fcntl(fd, F_GETFL) after second F_SETFL failed: %m\n");
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result = 1;
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}
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else if ((val & O_APPEND) == 0)
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{
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puts ("O_APPEND not set");
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result = 1;
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}
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val = fcntl (fd, F_GETFD);
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if (val == -1)
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{
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printf ("fcntl(fd, F_GETFD) failed: %m\n");
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result = 1;
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}
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else if (fcntl (fd, F_SETFD, val | FD_CLOEXEC) == -1)
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{
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printf ("fcntl(fd, F_SETFD, FD_CLOEXEC) failed: %m\n");
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result = 1;
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}
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else
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{
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val = fcntl (fd, F_GETFD);
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if (val == -1)
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{
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printf ("fcntl(fd, F_GETFD) after F_SETFD failed: %m\n");
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result = 1;
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}
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else if ((val & FD_CLOEXEC) == 0)
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{
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puts ("FD_CLOEXEC not set");
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result = 1;
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}
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}
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/* Get a number of a free descriptor. If /dev/null is not available
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don't continue testing. */
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fd2 = open (_PATH_DEVNULL, O_RDWR);
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if (fd2 == -1)
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return result;
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close (fd2);
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fd3 = fcntl (fd, F_DUPFD, fd2 + 1);
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if (fd3 == -1)
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{
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printf ("fcntl(fd, F_DUPFD, %d) failed: %m\n", fd2 + 1);
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result = 1;
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}
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else if (fd3 <= fd2)
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{
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printf ("F_DUPFD returned %d which is not larger than %d\n", fd3, fd2);
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result = 1;
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}
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if (fd3 != -1)
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{
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val = fcntl (fd3, F_GETFD);
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if (val == -1)
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{
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printf ("fcntl(fd3, F_GETFD) after F_DUPFD failed: %m\n");
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result = 1;
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}
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else if ((val & FD_CLOEXEC) != 0)
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{
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puts ("FD_CLOEXEC still set");
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result = 1;
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}
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close (fd3);
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}
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return result;
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}
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