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91 lines
2.9 KiB
91 lines
2.9 KiB
/* |
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* Check decoding of getrlimit/ugetrlimit 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 <errno.h> |
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#include <stdint.h> |
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#include <stdio.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(kernel_ulong_t lim) |
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{ |
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if (sizeof(lim) == sizeof(uint64_t)) { |
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if (lim == (kernel_ulong_t) -1ULL) |
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return "RLIM64_INFINITY"; |
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} else { |
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if (lim == (kernel_ulong_t) -1U) |
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return "RLIM_INFINITY"; |
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} |
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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], "%llu*1024", (unsigned long long) lim / 1024); |
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else |
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sprintf(buf[i], "%llu", (unsigned long long) lim); |
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return buf[i++]; |
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} |
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#ifdef NR_GETRLIMIT |
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int |
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main(void) |
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{ |
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kernel_ulong_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_GETRLIMIT, res, 0); |
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if (rc && ENOSYS == errno) |
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perror_msg_and_skip(STR_GETRLIMIT); |
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printf("%s(%s, NULL) = %ld %s (%m)\n", |
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STR_GETRLIMIT, xlat->str, rc, errno2name()); |
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rc = syscall(NR_GETRLIMIT, res, rlimit); |
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if (rc) |
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printf("%s(%s, NULL) = %ld %s (%m)\n", |
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STR_GETRLIMIT, xlat->str, rc, errno2name()); |
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else |
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printf("%s(%s, {rlim_cur=%s, rlim_max=%s})" |
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" = 0\n", STR_GETRLIMIT, xlat->str, |
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sprint_rlim(rlimit[0]), 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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#endif /* NR_GETRLIMIT */
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