memcheck/tests/freebsd/getfsstat.c

   1 #include <sys/param.h>
   2 #include <sys/ucred.h>
   3 #include <sys/mount.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6
   7 int main(void)
   8 {
   9     struct statfs mbuf[128];
  10     int fs_count;
  11
  12     if ((fs_count = getfsstat (NULL, 0, MNT_NOWAIT)) != -1 )
  13     {
  14         getfsstat (mbuf, fs_count * sizeof(mbuf[0]), MNT_NOWAIT);
  15
  16         for ( int i = 0; i < fs_count; ++i)
  17         {
  18             printf("mount from name %s\n", mbuf[i].f_mntfromname);
  19         }
  20     }
  21
  22     // now some bad uses
  23     struct statfs* badbuf = malloc(sizeof(struct statfs));
  24     free(badbuf);
  25     getfsstat(badbuf, 1, MNT_NOWAIT);
  26
  27     struct statfs betterbuf;
  28     int i;
  29     int badflags;
  30     getfsstat(NULL, i, MNT_NOWAIT);
  31     getfsstat(&betterbuf, sizeof(struct statfs), badflags);
  32 }
  33