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92 lines
2.8 KiB
92 lines
2.8 KiB
/* |
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* Check decoding of prlimit64 syscall. |
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* |
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "tests.h" |
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#include <asm/unistd.h> |
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#ifdef __NR_prlimit64 |
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# include <inttypes.h> |
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# include <stdio.h> |
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# include <stdint.h> |
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# include <sys/resource.h> |
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# include <unistd.h> |
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# include "xlat.h" |
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# include "xlat/resources.h" |
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const char * |
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sprint_rlim(uint64_t lim) |
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{ |
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if (lim == -1ULL) |
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return "RLIM64_INFINITY"; |
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static char buf[2][sizeof(lim)*3 + sizeof("*1024")]; |
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static int i; |
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i &= 1; |
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if (lim > 1024 && lim % 1024 == 0) |
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sprintf(buf[i], "%" PRIu64 "*1024", lim / 1024); |
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else |
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sprintf(buf[i], "%" PRIu64, lim); |
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return buf[i++]; |
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} |
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int |
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main(void) |
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{ |
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unsigned long pid = |
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(unsigned long) 0xdefaced00000000ULL | (unsigned) getpid(); |
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uint64_t *const rlimit = tail_alloc(sizeof(*rlimit) * 2); |
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const struct xlat *xlat; |
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for (xlat = resources; xlat->str; ++xlat) { |
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unsigned long res = 0xfacefeed00000000ULL | xlat->val; |
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long rc = syscall(__NR_prlimit64, pid, res, 0, rlimit); |
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if (rc) |
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printf("prlimit64(%d, %s, NULL, %p) = %ld %s (%m)\n", |
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(unsigned) pid, xlat->str, rlimit, |
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rc, errno2name()); |
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else |
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printf("prlimit64(%d, %s, NULL" |
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", {rlim_cur=%s, rlim_max=%s}) = 0\n", |
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(unsigned) pid, xlat->str, |
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sprint_rlim(rlimit[0]), |
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sprint_rlim(rlimit[1])); |
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} |
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puts("+++ exited with 0 +++"); |
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return 0; |
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} |
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#else |
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SKIP_MAIN_UNDEFINED("__NR_prlimit64") |
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#endif
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