~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/tools/testing/selftests/proc/proc-multiple-procfs.c

Version: ~ [ linux-6.4-rc3 ] ~ [ linux-6.3.4 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.30 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.113 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.180 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.243 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.283 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.315 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * Copyright © 2020 Alexey Gladkov <gladkov.alexey@gmail.com>
  3  *
  4  * Permission to use, copy, modify, and distribute this software for any
  5  * purpose with or without fee is hereby granted, provided that the above
  6  * copyright notice and this permission notice appear in all copies.
  7  *
  8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15  */
 16 #include <assert.h>
 17 #include <stdlib.h>
 18 #include <stdio.h>
 19 #include <sys/mount.h>
 20 #include <sys/types.h>
 21 #include <sys/stat.h>
 22 
 23 int main(void)
 24 {
 25         struct stat proc_st1, proc_st2;
 26         char procbuff[] = "/tmp/proc.XXXXXX/meminfo";
 27         char procdir1[] = "/tmp/proc.XXXXXX";
 28         char procdir2[] = "/tmp/proc.XXXXXX";
 29 
 30         assert(mkdtemp(procdir1) != NULL);
 31         assert(mkdtemp(procdir2) != NULL);
 32 
 33         assert(!mount("proc", procdir1, "proc", 0, "hidepid=1"));
 34         assert(!mount("proc", procdir2, "proc", 0, "hidepid=2"));
 35 
 36         snprintf(procbuff, sizeof(procbuff), "%s/meminfo", procdir1);
 37         assert(!stat(procbuff, &proc_st1));
 38 
 39         snprintf(procbuff, sizeof(procbuff), "%s/meminfo", procdir2);
 40         assert(!stat(procbuff, &proc_st2));
 41 
 42         umount(procdir1);
 43         umount(procdir2);
 44 
 45         assert(proc_st1.st_dev != proc_st2.st_dev);
 46 
 47         return 0;
 48 }
 49 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp