77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
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/*
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* Copyright (c) 2014, The Android Open Source Project
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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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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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static void
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usage(const char *s)
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{
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fprintf(stderr, "usage: %s pid resource cur max\n", s);
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exit(EXIT_FAILURE);
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}
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int prlimit_main(int argc, char *argv[])
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{
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pid_t pid;
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struct rlimit64 rl;
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int resource;
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int rc;
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if (argc != 5)
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usage(*argv);
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if (sscanf(argv[1], "%d", &pid) != 1)
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usage(*argv);
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if (sscanf(argv[2], "%d", &resource) != 1)
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usage(*argv);
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if (sscanf(argv[3], "%llu", &rl.rlim_cur) != 1)
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usage(*argv);
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if (sscanf(argv[4], "%llu", &rl.rlim_max) != 1)
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usage(*argv);
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printf("setting resource %d of pid %d to [%llu,%llu]\n", resource, pid,
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rl.rlim_cur, rl.rlim_max);
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rc = prlimit64(pid, resource, &rl, NULL);
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if (rc < 0) {
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perror("prlimit");
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exit(EXIT_FAILURE);
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}
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return 0;
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}
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