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/*
* Check decoding of prlimit64 syscall.
*
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <asm/unistd.h>
#ifdef __NR_prlimit64
# include <inttypes.h>
# include <stdio.h>
# include <stdint.h>
# include <sys/resource.h>
# include <unistd.h>
# include "xlat.h"
# include "xlat/resources.h"
const char *
sprint_rlim(uint64_t lim)
{
if (lim == -1ULL)
return "RLIM64_INFINITY";
static char buf[2][sizeof(lim)*3 + sizeof("*1024")];
static int i;
i &= 1;
if (lim > 1024 && lim % 1024 == 0)
sprintf(buf[i], "%" PRIu64 "*1024", lim / 1024);
else
sprintf(buf[i], "%" PRIu64, lim);
return buf[i++];
}
int
main(void)
{
unsigned long pid =
(unsigned long) 0xdefaced00000000ULL | (unsigned) getpid();
uint64_t *const rlimit = tail_alloc(sizeof(*rlimit) * 2);
const struct xlat *xlat;
for (xlat = resources; xlat->str; ++xlat) {
unsigned long res = 0xfacefeed00000000ULL | xlat->val;
long rc = syscall(__NR_prlimit64, pid, res, 0, rlimit);
if (rc)
printf("prlimit64(%d, %s, NULL, %p) = %ld %s (%m)\n",
(unsigned) pid, xlat->str, rlimit,
rc, errno2name());
else
printf("prlimit64(%d, %s, NULL"
", {rlim_cur=%s, rlim_max=%s}) = 0\n",
(unsigned) pid, xlat->str,
sprint_rlim(rlimit[0]),
sprint_rlim(rlimit[1]));
}
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_prlimit64")
#endif
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