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strace/tests/xstatx.c
Dmitry V. Levin db4ef238bd tests/xstatx.c: use zero_extend_signed_to_ull/sign_extend_unsigned_to_ll 
Use zero_extend_signed_to_ull and sign_extend_unsigned_to_ll macros
instead of explicit casts with unpredictable sign extension semantics.

* tests/xstatx.c (print_time, main): Use zero_extend_signed_to_ull
instead of explicit cast.
(print_stat): Use zero_extend_signed_to_ull and
sign_extend_unsigned_to_ll instead of explicit casts.
2016-08-31 16:31:53 +00:00

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/*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined HAVE_FTRUNCATE && defined HAVE_FUTIMENS
# ifndef TEST_SYSCALL_STR
# error TEST_SYSCALL_STR must be defined
# endif
# ifndef TEST_SYSCALL_INVOKE
# error TEST_SYSCALL_INVOKE must be defined
# endif
# ifndef PRINT_SYSCALL_HEADER
# error PRINT_SYSCALL_HEADER must be defined
# endif
# ifndef PRINT_SYSCALL_FOOTER
# error PRINT_SYSCALL_FOOTER must be defined
# endif
# include <stdio.h>
# include <stddef.h>
# include <time.h>
# include <unistd.h>
# include <sys/sysmacros.h>
static void
print_time(const time_t t)
{
if (!t) {
printf("0");
return;
}
struct tm *p = localtime(&t);
if (p)
printf("%02d/%02d/%02d-%02d:%02d:%02d",
p->tm_year + 1900, p->tm_mon + 1, p->tm_mday,
p->tm_hour, p->tm_min, p->tm_sec);
else
printf("%llu", zero_extend_signed_to_ull(t));
}
# ifndef STRUCT_STAT
# define STRUCT_STAT struct stat
# define STRUCT_STAT_STR "struct stat"
# define STRUCT_STAT_IS_STAT64 0
# endif
# ifndef SAMPLE_SIZE
# define SAMPLE_SIZE 43147718418
# endif
typedef off_t libc_off_t;
# ifdef USE_ASM_STAT
# define stat libc_stat
# define stat64 libc_stat64
# endif
# include <fcntl.h>
# include <sys/stat.h>
# ifdef USE_ASM_STAT
# undef stat
# undef stat64
# endif
# ifdef USE_ASM_STAT
# undef st_atime
# undef st_mtime
# undef st_ctime
# include "asm_stat.h"
# if STRUCT_STAT_IS_STAT64
# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
# if defined MPERS_IS_m32
# ifdef HAVE_M32_STRUCT_STAT64_ST_MTIME_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# endif
# elif defined MPERS_IS_mx32
# ifdef HAVE_MX32_STRUCT_STAT64_ST_MTIME_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# endif
# elif defined HAVE_STRUCT_STAT64_ST_MTIME_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# endif /* MPERS_IS_m32 || MPERS_IS_mx32 || HAVE_STRUCT_STAT64_ST_MTIME_NSEC */
# else /* !STRUCT_STAT_IS_STAT64 */
# if defined MPERS_IS_m32
# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
# ifdef HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# endif
# elif defined MPERS_IS_mx32
# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
# ifdef HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# endif
# endif /* MPERS_IS_m32 || MPERS_IS_mx32 */
# endif /* STRUCT_STAT_IS_STAT64 */
# else /* !USE_ASM_STAT */
# undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
# ifdef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
# define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
# undef st_atime_nsec
# define st_atime_nsec st_atim.tv_nsec
# undef st_ctime_nsec
# define st_ctime_nsec st_ctim.tv_nsec
# undef st_mtime_nsec
# define st_mtime_nsec st_mtim.tv_nsec
# endif /* HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC */
# endif
static void
print_ftype(const unsigned int mode)
{
if (S_ISREG(mode))
printf("S_IFREG");
else if (S_ISDIR(mode))
printf("S_IFDIR");
else if (S_ISCHR(mode))
printf("S_IFCHR");
else if (S_ISBLK(mode))
printf("S_IFBLK");
else
printf("%#o", mode & S_IFMT);
}
static void
print_perms(const unsigned int mode)
{
printf("%#o", mode & ~S_IFMT);
}
static void
print_stat(const STRUCT_STAT *st)
{
printf("{st_dev=makedev(%u, %u)",
(unsigned int) major(zero_extend_signed_to_ull(st->st_dev)),
(unsigned int) minor(zero_extend_signed_to_ull(st->st_dev)));
printf(", st_ino=%llu", zero_extend_signed_to_ull(st->st_ino));
printf(", st_mode=");
print_ftype(st->st_mode);
printf("|");
print_perms(st->st_mode);
printf(", st_nlink=%llu", zero_extend_signed_to_ull(st->st_nlink));
printf(", st_uid=%llu", zero_extend_signed_to_ull(st->st_uid));
printf(", st_gid=%llu", zero_extend_signed_to_ull(st->st_gid));
printf(", st_blksize=%llu", zero_extend_signed_to_ull(st->st_blksize));
printf(", st_blocks=%llu", zero_extend_signed_to_ull(st->st_blocks));
switch (st->st_mode & S_IFMT) {
case S_IFCHR: case S_IFBLK:
printf(", st_rdev=makedev(%u, %u)",
(unsigned int) major(zero_extend_signed_to_ull(st->st_rdev)),
(unsigned int) minor(zero_extend_signed_to_ull(st->st_rdev)));
break;
default:
printf(", st_size=%llu", zero_extend_signed_to_ull(st->st_size));
}
printf(", st_atime=");
print_time(sign_extend_unsigned_to_ll(st->st_atime));
# ifdef HAVE_STRUCT_STAT_ST_MTIME_NSEC
if (st->st_atime_nsec)
printf(".%09llu", zero_extend_signed_to_ull(st->st_atime_nsec));
# endif
printf(", st_mtime=");
print_time(sign_extend_unsigned_to_ll(st->st_mtime));
# ifdef HAVE_STRUCT_STAT_ST_MTIME_NSEC
if (st->st_mtime_nsec)
printf(".%09llu", zero_extend_signed_to_ull(st->st_mtime_nsec));
# endif
printf(", st_ctime=");
print_time(sign_extend_unsigned_to_ll(st->st_ctime));
# ifdef HAVE_STRUCT_STAT_ST_MTIME_NSEC
if (st->st_ctime_nsec)
printf(".%09llu", zero_extend_signed_to_ull(st->st_ctime_nsec));
# endif
printf("}");
}
static int
create_sample(const char *fname, const libc_off_t size)
{
static const struct timespec ts[] = {
{-10843, 135}, {-10841, 246}
};
(void) close(0);
if (open(fname, O_RDWR | O_CREAT | O_TRUNC, 0640)) {
perror(fname);
return 77;
}
if (ftruncate(0, size)) {
perror("ftruncate");
return 77;
}
if (futimens(0, ts)) {
perror("futimens");
return 77;
}
return 0;
}
int
main(void)
{
static const char sample[] = TEST_SYSCALL_STR ".sample";
STRUCT_STAT st[2];
int rc = create_sample(sample, SAMPLE_SIZE);
if (rc) {
(void) unlink(sample);
return rc;
}
if (TEST_SYSCALL_INVOKE(sample, st)) {
perror(TEST_SYSCALL_STR);
(void) unlink(sample);
return 77;
}
(void) unlink(sample);
if (zero_extend_signed_to_ull(SAMPLE_SIZE) !=
zero_extend_signed_to_ull(st[0].st_size)) {
fprintf(stderr, "Size mismatch: "
"requested size(%llu) != st_size(%llu)\n",
zero_extend_signed_to_ull(SAMPLE_SIZE),
zero_extend_signed_to_ull(st[0].st_size));
fprintf(stderr, "The most likely reason for this is incorrect"
" definition of %s.\n"
"Here is some diagnostics that might help:\n",
STRUCT_STAT_STR);
fprintf(stderr, "offsetof(%s, st_dev) = %zu"
", sizeof(st_dev) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_dev),
sizeof(st[0].st_dev));
fprintf(stderr, "offsetof(%s, st_ino) = %zu"
", sizeof(st_ino) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_ino),
sizeof(st[0].st_ino));
fprintf(stderr, "offsetof(%s, st_mode) = %zu"
", sizeof(st_mode) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_mode),
sizeof(st[0].st_mode));
fprintf(stderr, "offsetof(%s, st_nlink) = %zu"
", sizeof(st_nlink) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_nlink),
sizeof(st[0].st_nlink));
fprintf(stderr, "offsetof(%s, st_uid) = %zu"
", sizeof(st_uid) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_uid),
sizeof(st[0].st_uid));
fprintf(stderr, "offsetof(%s, st_gid) = %zu"
", sizeof(st_gid) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_gid),
sizeof(st[0].st_gid));
fprintf(stderr, "offsetof(%s, st_rdev) = %zu"
", sizeof(st_rdev) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_rdev),
sizeof(st[0].st_rdev));
fprintf(stderr, "offsetof(%s, st_size) = %zu"
", sizeof(st_size) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_size),
sizeof(st[0].st_size));
fprintf(stderr, "offsetof(%s, st_blksize) = %zu"
", sizeof(st_blksize) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_blksize),
sizeof(st[0].st_blksize));
fprintf(stderr, "offsetof(%s, st_blocks) = %zu"
", sizeof(st_blocks) = %zu\n",
STRUCT_STAT_STR, offsetof(STRUCT_STAT, st_blocks),
sizeof(st[0].st_blocks));
return 77;
}
PRINT_SYSCALL_HEADER(sample);
print_stat(st);
PRINT_SYSCALL_FOOTER;
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("HAVE_FTRUNCATE && HAVE_FUTIMENS")
#endif
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