tests: check decoding of clock_adjtime syscall

* tests/clock_adjtime.c: New file.
* tests/clock_adjtime.test: New test.
* tests/.gitignore: Add clock_adjtime.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add clock_adjtime.test.

tests: do not include <assert.h> unnecessarily

Automatically change tests/*.c files using the following script:

for f in tests/*.c; do
grep -q '\<assert(' "$f" ||
sed -i '/# *include *<assert\.h>/d' "$f"
done

tests: do not include <errno.h> unnecessarily

Automatically change tests/*.c files using the following script:

for f in tests/*.c; do
grep -Fv errno.h "$f" |
grep -Ewq '(si_)?errno|SOCK_FILTER_DENY_SYSCALL' ||
sed -i '/# *include *<errno\.h>/d' "$f"
done

tests/xetpriority.c: print syscall() result using %ld format

tests/xetpgid.c: print syscall() result using %ld format

tests/xchownx.c: use errno2name

tests/userfaultfd.c: stop using assert

tests/unlinkat.c: print syscall() result using %ld format

tests/umount.c: use errno2name

tests/truncate64.c: cleanup

* tests/truncate64.c (main): Use errno2name, stop using assert.

tests/truncate.c: cleanup

* tests/truncate.c (main): Use errno2name, stop using assert.

tests/tee.c: stop using assert

tests/syslog.c: use errno2name

tests/sync_file_range2.c: stop using assert

tests/sync_file_range.c: stop using assert

tests/symlinkat.c: cleanup

tests/swap.c: cleanup

* tests/swap.c (error_msg): Remove.
(main): Use errno2name.

tests/splice.c: stop using assert

tests/setugid.c: cleanup

tests/sethostname.c: use errno2name

tests/setgroups.c: use errno2name

* tests/setgroups.c (errno2str): Remove.
(main): Use errno2name.

tests/seccomp-strict.c: cleanup

* tests/seccomp-strict.c (main): Use errno2name, stop using assert.

tests/seccomp-filter.c: cleanup

* tests/seccomp-filter.c (main): Use errno2name, stop using assert.

tests/sched_xetscheduler.c: print syscall() result using %ld format

tests/sched_xetparam.c: print syscall() result using %ld format

tests/renameat.c: print syscall() result using %ld format

tests/rename.c: print syscall() result using %ld format

tests/readv.c: cleanup

tests/pwritev.c: use errno2name

tests/preadv-pwritev.c: cleanup

tests/prctl-seccomp-strict.c: cleanup

* tests/prctl-seccomp-strict.c (main): Use errno2name,
stop using assert.

tests/openat.c: use errno2name

tests/open.c: use errno2name

tests/mlockall.c: cleanup

tests/mlock2.c: stop using assert

tests/mknod.c: print syscall() result using %ld format

tests/mkdirat.c: print syscall() result using %ld format

tests/lseek.c: cleanup

* tests/lseek.c (main): Use errno2name, stop using assert.

tests/llseek.c: cleanup

* tests/llseek.c (main): Use errno2name, stop using assert.

tests/linkat.c: print syscall() result using %ld format

tests/iopl.c: use errno2name

tests/ioperm.c: use errno2name

tests/getgroups.c: use errno2name

* tests/getgroups.c (errno2str): Remove.
(main): Use errno2name.

tests/ftruncate64.c: cleanup

* tests/ftruncate64.c (main): Use errno2name, stop using assert.

tests/ftruncate.c: cleanup

* tests/ftruncate.c (main): Use errno2name, stop using assert.

tests/fsync.c: print syscall() result using %ld format

tests/flock.c: print syscall() result using %ld format

tests/file_handle.c: use errno2name

tests/fdatasync.c: print syscall() result using %ld format

tests/fchownat.c: use errno2name

tests/fchmodat.c: use errno2name

tests/fchmod.c: use errno2name

tests/faccessat.c: print syscall() result using %ld format

tests/epoll_wait.c: print syscall() result using %ld format

tests/epoll_ctl.c: print syscall() result using %ld format

tests/epoll_create1.c: cleanup

* tests/epoll_create1.c (main): Use errno2name, stop using assert.

tests/epoll_create.c: print syscall() result using %ld format

tests/dup3.c: print syscall() result using %ld format

tests/dup2.c: print syscall() result using %ld format

tests/dup.c: cleanup

tests/creat.c: stop using sys/stat.h

tests/copy_file_range.c: stop using assert

tests/chroot.c: use errno2name

tests/aio.c: use errno2name

tests: cleanup acct.test

* tests/acct.c (main): Use errno2name, stop using assert,
change sample file name.
* tests/acct.test: Update.

tests: use errno2name()

Automatically change tests/*.c files using the following sed regexp:
sed -i 's/errno == E[[:alnum:]]\+ ? "E[[:alnum:]]\+" : "E[[:alnum:]]\+"/errno2name()/g'

tests/dup.c: include "tests.h"

This is going to be necessary for the following commit.

tests: add getpgrp.test

* tests/getpgrp.c: New file.
* tests/getpgrp.test: New test.
* tests/.gitignore: Add getpgrp.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getpgrp.test.

tests: add access.test

* tests/access.c: New file.
* tests/access.test: New test.
* tests/.gitignore: Add access.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add access.test.

tests: add fchdir.test

* tests/fchdir.c: New file.
* tests/fchdir.test: New test.
* tests/.gitignore: Add fchdir.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add fchdir.test.

tests: add mkdir.test

* tests/mkdir.c: New file.
* tests/mkdir.test: New test.
* tests/.gitignore: Add mkdir.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add mkdir.test.

tests: add getsid.test

* tests/getsid.c: New file.
* tests/getsid.test: New test.
* tests/.gitignore: Add getsid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getsid.test.

tests: add errno2name function to libtests

Add a simple translator of errno to its name, so one could
simply use errno2name() instead of complex expressions like
errno == EINVAL ? "EINVAL" : "EFAULT".

* tests.h (errno2name): New prototype.
* errno2name.c: New file.
* Makefile.am (libtests_a_SOURCES): Add it.

hppa: rename ECANCELLED to ECANCELED

hppa seems to be the only architecture that defines ECANCELLED synonym
for ECANCELED constant, other architectures just define ECANCELED.
Change the way how this constant is printed on hppa to be in line
with other architectures.

* linux/hppa/errnoent.h [253]: Rename ECANCELLED to ECANCELED.

Remove parser of unimplemented timerfd syscall

timerfd syscall was introduced in v2.6.22-rc1, but in v2.6.25-rc1
it was replaced by timerfd_* syscall family.

* linux/avr32/syscallent.h (timerfd): Fix nargs.
* linux/dummy.h (sys_timerfd): Add stub alias.
* time.c (SYS_FUNC(timerfd)): Remove.

tests: workaround kernel bugs in seccomp-strict.test and prctl-seccomp-strict.test

If kernel implementation of strict seccomp mode is buggy, test programs
will be killed by SIGKILL.  This is a known problem at least on
x32 and mips.  Skip affected tests if this is the case.

This change partially revert commit 9c1a72cd3f3d52d573876ce474b620a5f141fb1b.

* tests/seccomp-strict.c (main): Remove workaround for x32.
* tests/prctl-seccomp-strict.c: Likewise.
* tests/seccomp-strict.test: Skip the test if the test program
has been killed by SIGKILL.
* tests/prctl-seccomp-strict.test: Likewise.

tests/shmxt.c: do not use SHM_RND, it is unreliable

* tests/shmxt.c (main): Do not set SHM_RND flag.

tests/rt_sigpending.c: fix for systems where _NSIG > 16 * sizeof(long)

* tests/rt_sigsuspend.c (iterate): Do not assume that size will be less
than sizeof(long) on the second iteration.

prctl-seccomp-strict.test: robustify against unrelated prctl invocations

* tests/prctl-seccomp-strict.test: Filter out PR_GET_* prctl calls.

tests: adjust rt_sigpending to older kernels

With linux kernels older than v3.9-rc1, compat rt_sigpending syscall
could fail with EFAULT in cases where on later kernels it succeeds.
Adjust the test to handle both cases properly.

* tests/rt_sigpending.c (iterate): Stop iterations if rt_sigpending
failed with EFAULT.

tests: adjust readv/writev and preadv/pwritev tests to older kernels

With linux kernels older than v3.16-rc1, iovec based compat syscalls may
return EINVAL in some cases where on later kernels they return EFAULT.
Adjust tests to handle both cases properly.

* tests/preadv-pwritev.c: Include <errno.h>.
(main): Print either "EINVAL" or "EFAULT" depending on errno.
* tests/pwritev.c: Likewise.
* tests/readv.c: Likewise.

tests: remove obsolete non-strict uid tests

Recently added strict tests for uid/gid related syscalls
made old uid tests obsolete.

* tests/uid.awk: Remove.
* tests/uid.c: Remove.
* tests/uid.test: Remove.
* tests/uid16.c: Remove.
* tests/uid16.test: Remove.
* tests/uid32.c: Remove.
* tests/uid32.test: Remove.
* tests/.gitignore: Remove uid, uid16, and uid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Remove uid.test, uid16.test, and uid32.test.
(EXTRA_DIST): Remove uid.awk.

tests: extend test coverage of getuid/getgid family syscalls

Add strict tests for getuid, getuid32, getgid, getgid32, geteuid,
geteuid32, getegid, and getegid32 syscalls.

* tests/getegid.c: New file.
* tests/getegid.test: New test.
* tests/getegid32.c: New file.
* tests/getegid32.test: New test.
* tests/geteuid.c: New file.
* tests/geteuid.test: New test.
* tests/geteuid32.c: New file.
* tests/geteuid32.test: New test.
* tests/getgid.c: New file.
* tests/getgid.test: New test.
* tests/getgid32.c: New file.
* tests/getgid32.test: New test.
* tests/getuid.c: New file.
* tests/getuid.test: New test.
* tests/getuid32.c: New file.
* tests/getuid32.test: New test.
* tests/.gitignore: Add getuid, getuid32, getgid, getgid32, geteuid,
* geteuid32, getegid, and getegid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getegid.test, getegid32.test, geteuid.test,
geteuid32.test, getgid.test, getgid32.test, getuid.test,
and getuid32.test.

tests: extend test coverage of getresgid32 syscall

* tests/getresgid32.c: New file.
* tests/getresgid32.test: New test.
* tests/.gitignore: Add getresgid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getresgid32.test.

tests: extend test coverage of getresgid syscall

* tests/getresgid.c: New file.
* tests/getresgid.test: New test.
* tests/.gitignore: Add getresgid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getresgid.test.

tests: extend test coverage of getresuid32 syscall

* tests/getresuid32.c: New file.
* tests/getresuid32.test: New test.
* tests/.gitignore: Add getresuid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getresuid32.test.

tests: extend test coverage of getresuid syscall

* tests/getresugid.c: New file.
* tests/getresuid.c: New file.
* tests/getresuid.test: New test.
* tests/.gitignore: Add getresuid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getresuid.test.
(EXTRA_DIST): Add getresugid.c.

tests: add symlinkat.test

* tests/symlinkat.c: New file.
* tests/symlinkat.test: New test.
* tests/.gitignore: Add symlinkat.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add symlinkat.test.

tests: add iopl.test

* tests/iopl.c: New file.
* tests/iopl.test: New test.
* tests/.gitignore: Add iopl.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add iopl.test.

mips o32, powerpc, powerpc64: fix decoding of iopl syscall

* linux/mips/syscallent-o32.h (iopl): Fix nargs.
* linux/powerpc/syscallent.h (iopl): Fix nargs and sys_func.
* linux/powerpc64/syscallent.h (iopl): Likewise.

tests: add ioperm.test

* tests/ioperm.c: New file.
* tests/ioperm.test: New test.
* tests/.gitignore: Add ioperm.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add ioperm.test.

Fix corner cases of getgroups and setgroups syscall decoders

* uid.c (print_groups): New function.
(SYS_FUNC(setgroups), SYS_FUNC(getgroups)): Use it.
Print first syscall argument using %u format.
* tests/getgroups.c: New file.
* tests/getgroups.test: New test.
* tests/getgroups32.c: New file.
* tests/getgroups32.test: New test.
* tests/setgroups.c: New file.
* tests/setgroups.test: New test.
* tests/setgroups32.c: New file.
* tests/setgroups32.test: New test.
* tests/.gitignore: Add getgroups, getgroups32, setgroups,
and setgroups32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add getgroups.test, getgroups32.test,
setgroups.test, and setgroups32.test.

Cleanup setfsuid syscall decoder

* uid.c (SYS_FUNC(setfsuid)): Remove redundant check.

tests: check decoding of setfsgid32 syscall

* tests/setfsgid32.c: New file.
* tests/setfsgid32.test: New test.
* tests/.gitignore: Add setfsgid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setfsgid32.test.

tests: check decoding of setfsgid syscall

* tests/setfsugid.c: New file.
* tests/setfsgid.c: New file.
* tests/setfsgid.test: New test.
* tests/.gitignore: Add setfsgid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setfsgid.test.
(EXTRA_DIST): Add setfsugid.c.

tests: check decoding of setfsuid32 syscall

* tests/setfsuid32.c: New file.
* tests/setfsuid32.test: New test.
* tests/.gitignore: Add setfsuid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setfsuid32.test.

tests: check decoding of setfsuid syscall

* tests/setfsugid.c: New file.
* tests/setfsuid.c: New file.
* tests/setfsuid.test: New test.
* tests/.gitignore: Add setfsuid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setfsuid.test.
(EXTRA_DIST): Add setfsugid.c.

tests: extend test coverage of setresgid32 syscall

* tests/setresgid32.c: New file.
* tests/setresgid32.test: New test.
* tests/.gitignore: Add setresgid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setresgid32.test.

tests: extend test coverage of setresgid syscall

* tests/setresgid.c: New file.
* tests/setresgid.test: New test.
* tests/.gitignore: Add setresgid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setresgid.test.

tests: extend test coverage of setresuid32 syscall

* tests/setresuid32.c: New file.
* tests/setresuid32.test: New test.
* tests/.gitignore: Add setresuid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setresuid32.test.