The Tor Browser: mozglue/build/cpuacct.c@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*

     2  * Copyright (C) 2010 The Android Open Source Project

     3  * All rights reserved.

     4  *

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

     6  * modification, are permitted provided that the following conditions

     7  * are met:

     8  *  * Redistributions of source code must retain the above copyright

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

    10  *  * Redistributions in binary form must reproduce the above copyright

    11  *    notice, this list of conditions and the following disclaimer in

    12  *    the documentation and/or other materials provided with the

    13  *    distribution.

    14  *

    15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

    18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

    19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

    20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

    21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS

    22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

    23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

    24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT

    25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

    26  * SUCH DAMAGE.

    27  */

    28 #include <unistd.h>

    29 #include <errno.h>

    30 #include <sys/stat.h>

    31 #include <fcntl.h>

    32 #include <stdio.h>

    33 #include "cpuacct.h"

    35 int cpuacct_add(uid_t uid)

    36 {

    37     int count;

    38     int fd;

    39     char buf[80];

    41     count = snprintf(buf, sizeof(buf), "/acct/uid/%d/tasks", uid);

    42     fd = open(buf, O_RDWR|O_CREAT|O_TRUNC|O_SYNC);

    43     if (fd < 0) {

    44         /* Note: sizeof("tasks") returns 6, which includes the NULL char */

    45         buf[count - sizeof("tasks")] = 0;

    46         if (mkdir(buf, 0775) < 0)

    47             return -errno;

    49         /* Note: sizeof("tasks") returns 6, which includes the NULL char */

    50         buf[count - sizeof("tasks")] = '/';

    51         fd = open(buf, O_RDWR|O_CREAT|O_TRUNC|O_SYNC);

    52     }

    53     if (fd < 0)

    54         return -errno;

    56     write(fd, "0", 2);

    57     if (close(fd))

    58         return -errno;

    60     return 0;

    61 }

The Tor Browser / file revision