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Diffstat (limited to 'sysdeps/unix/sysv/linux/test-errno-linux.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/test-errno-linux.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/sysdeps/unix/sysv/linux/test-errno-linux.c b/sysdeps/unix/sysv/linux/test-errno-linux.c deleted file mode 100644 index 87ed103c99..0000000000 --- a/sysdeps/unix/sysv/linux/test-errno-linux.c +++ /dev/null @@ -1,181 +0,0 @@ -/* Test that failing system calls do set errno to the correct value. - Linux sycalls version. - - Copyright (C) 2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <fcntl.h> -#include <mqueue.h> -#include <sched.h> -#include <signal.h> -#include <stdio.h> -#include <string.h> -#include <time.h> -#include <unistd.h> -#include <sys/epoll.h> -#include <sys/eventfd.h> -#include <sys/file.h> -#include <sys/fsuid.h> -#include <sys/inotify.h> -#include <sys/mman.h> -#include <sys/poll.h> -#include <sys/quota.h> -#include <sys/resource.h> -#include <sys/select.h> -#include <sys/sendfile.h> -#include <sys/swap.h> -#include <sys/time.h> -#include <sys/types.h> -#include <sys/wait.h> - -/* This is not an exhaustive test: only system calls that can be - persuaded to fail with a consistent error code and no side effects - are included. Usually these are failures due to invalid arguments, - with errno code EBADF or EINVAL. The order of argument checks is - unspecified, so we must take care to provide arguments that only - allow _one_ failure mode. - - Note that all system calls that can fail with EFAULT are permitted - to deliver a SIGSEGV signal instead, so we avoid supplying invalid - pointers in general, and we do not attempt to test system calls - that can only fail with EFAULT (e.g. gettimeofday, gethostname). - - Also note that root-only system calls (e.g. acct, reboot) may, when - the test is run as an unprivileged user, fail due to insufficient - privileges before bothering to do argument checks, so those are not - tested either. - - Also, system calls that take enum or a set of flags as argument is - not tested if POSIX doesn't specify exact binary values for all - flags, and so any value passed to flags may become valid. - - Some tests assume "/bin/sh" names a file that exists and is not a - directory. */ - -#define test_wrp_rv(rtype, prtype, experr, syscall, ...) \ - (__extension__ ({ \ - errno = 0xdead; \ - rtype ret = syscall (__VA_ARGS__); \ - int err = errno; \ - int fail; \ - if ((ret == (rtype) -1) && (err == experr)) \ - fail = 0; \ - else \ - { \ - fail = 1; \ - if (ret != (rtype) -1) \ - printf ("FAIL: " #syscall ": didn't fail as expected" \ - " (return "prtype")\n", ret); \ - else if (err == 0xdead) \ - puts ("FAIL: " #syscall ": didn't update errno"); \ - else if (err != experr) \ - printf ("FAIL: " #syscall \ - ": errno is: %d (%s) expected: %d (%s)\n", \ - err, strerror (err), experr, strerror (experr));\ - } \ - fail; \ - })) - -#define test_wrp_rv2(rtype, prtype, experr1, experr2, syscall, ...) \ - (__extension__ ({ \ - errno = 0xdead; \ - rtype ret = syscall (__VA_ARGS__); \ - int err = errno; \ - int fail; \ - if ((ret == (rtype) -1) && ((err == experr1) || (err == experr2))) \ - fail = 0; \ - else \ - { \ - fail = 1; \ - if (ret != (rtype) -1) \ - printf ("FAIL: " #syscall ": didn't fail as expected" \ - " (return "prtype")\n", ret); \ - else if (err == 0xdead) \ - puts ("FAIL: " #syscall ": didn't update errno"); \ - else if (err != experr1 && err != experr2) \ - printf ("FAIL: " #syscall \ - ": errno is: %d (%s) expected: %d (%s) or %d (%s)\n", \ - err, strerror (err), experr1, strerror (experr1), \ - experr2, strerror (experr2)); \ - } \ - fail; \ - })) - -#define test_wrp(experr, syscall, ...) \ - test_wrp_rv(int, "%d", experr, syscall, __VA_ARGS__) - -#define test_wrp2(experr1, experr2, syscall, ...) \ - test_wrp_rv2(int, "%d", experr1, experr2, syscall, __VA_ARGS__) - -static int -do_test (void) -{ - fd_set rs, ws, es; - int status; - off_t off; - stack_t ss; - struct dqblk dqblk; - struct epoll_event epoll_event; - struct pollfd pollfd; - struct sched_param sch_param; - struct timespec ts; - struct timeval tv; - unsigned char vec[16]; - ss.ss_flags = ~SS_DISABLE; - ts.tv_sec = -1; - - int fails = 0; - fails |= test_wrp (EINVAL, epoll_create, -1); - fails |= test_wrp (EINVAL, epoll_create1, EPOLL_CLOEXEC + 1); - fails |= test_wrp (EBADF, epoll_ctl, -1, EPOLL_CTL_ADD, 0, &epoll_event); - fails |= test_wrp (EBADF, epoll_wait, -1, &epoll_event, 1, 1); - fails |= test_wrp (EBADF, fdatasync, -1); - fails |= test_wrp (EBADF, flock, -1, LOCK_SH); - fails |= test_wrp (ESRCH, getpgid, -1); - /* Linux v3.8 (676a0675c) removed the test to check at least one valid - bit in flags (to return EINVAL). It was later added back in v3.9 - (04df32fa1). */ - fails |= test_wrp2 (EINVAL, EBADF, inotify_add_watch, -1, "/", 0); - fails |= test_wrp (EINVAL, mincore, (void *) -1, 0, vec); - /* mlock fails if the result of the addition addr+len was less than addr - (which indicates final address overflow), however on 32 bits binaries - running on 64 bits kernels, internal syscall address check won't result - in an invalid address and thus syscalls fails later in vma - allocation. */ - fails |= test_wrp2 (EINVAL, ENOMEM, mlock, (void *) -1, 1); - fails |= test_wrp (EINVAL, nanosleep, &ts, &ts); - fails |= test_wrp (EINVAL, poll, &pollfd, -1, 0); - /* quotactl returns ENOSYS for kernels not configured with CONFIG_QUOTA. */ - fails |= test_wrp2 (ENODEV, ENOSYS, quotactl, Q_GETINFO, NULL, -1, - (caddr_t) &dqblk); - fails |= test_wrp (EINVAL, sched_getparam, -1, &sch_param); - fails |= test_wrp (EINVAL, sched_getscheduler, -1); - fails |= test_wrp (EINVAL, sched_get_priority_max, -1); - fails |= test_wrp (EINVAL, sched_get_priority_min, -1); - fails |= test_wrp (EINVAL, sched_rr_get_interval, -1, &ts); - fails |= test_wrp (EINVAL, sched_setparam, -1, &sch_param); - fails |= test_wrp (EINVAL, sched_setscheduler, -1, 0, &sch_param); - fails |= test_wrp (EINVAL, select, -1, &rs, &ws, &es, &tv); - fails |= test_wrp (EBADF, sendfile, -1, -1, &off, 0); - fails |= test_wrp (EINVAL, sigaltstack, &ss, NULL); - fails |= test_wrp (ECHILD, wait4, -1, &status, 0, NULL); - - return fails; -} - -#include "support/test-driver.c" |