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Commit 5b244cd4 authored by Iliyan Malchev's avatar Iliyan Malchev
Browse files

toolbox: add prlimit command 



adb shell prlimit <pid> <cur> <max>

prlimit uses prlimit internally to allow you to set the limits on an arbitrary
process, if you have the privileges to.

Change-Id: Ie9a5dc510c7c695debd8f948361d4c51befa5604
Signed-off-by: default avatarIliyan Malchev <malchev@google.com>
parent 6e93b246

toolbox/Android.mk

+1 −0
Original line number Diff line number Diff line
@@ -176,6 +176,7 @@ OUR_TOOLS := \ 
    readlink \

    renice \

    restorecon \

    prlimit \

    rmmod \

    route \

    runcon \

toolbox/prlimit.c

0 → 100644
+76 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2014, The Android Open Source Project

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *  * Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 *  * 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.

 *  * Neither the name of Google, Inc. nor the names of its contributors

 *    may be used to endorse or promote products derived from this

 *    software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "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

 * COPYRIGHT OWNER OR CONTRIBUTORS 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.

 */



#include <stdio.h>

#include <unistd.h>

#include <stdlib.h>

#include <sys/time.h>

#include <sys/resource.h>



static void

usage(const char *s)

{

    fprintf(stderr, "usage: %s pid resource cur max\n", s);

    exit(EXIT_FAILURE);

}



int prlimit_main(int argc, char *argv[])

{

    pid_t pid;

    struct rlimit64 rl;

    int resource;

    int rc;



    if (argc != 5)

        usage(*argv);



    if (sscanf(argv[1], "%d", &pid) != 1)

        usage(*argv);



    if (sscanf(argv[2], "%d", &resource) != 1)

        usage(*argv);



    if (sscanf(argv[3], "%llu", &rl.rlim_cur) != 1)

        usage(*argv);



    if (sscanf(argv[4], "%llu", &rl.rlim_max) != 1)

        usage(*argv);



    printf("setting resource %d of pid %d to [%llu,%llu]\n", resource, pid,

            rl.rlim_cur, rl.rlim_max);

    rc = prlimit64(pid, resource, &rl, NULL);

    if (rc < 0) {

        perror("prlimit");

        exit(EXIT_FAILURE);

    }



    return 0;

}