memcheck/tests/freebsd/chmod_chown.c

   1 /*
   2  * Test this family of functions
   3  * lchmod chownat lchownat
   4  */
   5
   6 #include <unistd.h>
   7 #include <dirent.h>
   8 #include <string.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <sys/stat.h>
  12
  13 int main(void)
  14 {
  15     char buff[64];
  16     char tmpfile[] = "/tmp/test_chmod_chown.XXXXXX";
  17     char tmplink[] = "/tmp/test_chx_link.XXXXXX";
  18     int tmpfd = mkstemp(tmpfile);
  19     mktemp(tmplink);
  20
  21     memset(buff, 0, sizeof(buff));
  22     sprintf(buff, "some data");
  23     write(tmpfd, buff, strlen(buff)+1);
  24     close (tmpfd);
  25
  26     DIR* tmpdir = opendir("/tmp");
  27     if (tmpdir) {
  28        int tmpdirfd = dirfd(tmpdir);
  29
  30        if (-1 == symlinkat(tmpfile+5, tmpdirfd, tmplink+5)) {
  31            perror("linkat failed");
  32        }
  33
  34        if (-1 == lchmod(tmplink, S_IRWXU|S_IRWXG|S_IRWXO))
  35        {
  36           perror("lchmod failed:");
  37        }
  38
  39        if (fchmodat(tmpdirfd, tmpfile+5, S_IRWXU|S_IRWXG|S_IRWXO, 0))
  40        {
  41           perror("fchmodat failed:");
  42        }
  43
  44        // no test for failure as not everyone runnning this will be a member of group 921
  45        fchownat(tmpdirfd, tmpfile+5, getuid(), 920, 0);
  46
  47        closedir(tmpdir);
  48     }
  49
  50     unlink(tmpfile);
  51     unlink(tmplink);
  52
  53     // error section
  54     char* badstring = strdup("foo");
  55     free(badstring);
  56     int badint1;
  57     int badint2;
  58     int badint3;
  59     int badint4;
  60
  61     lchmod(badstring, badint1);
  62     fchmodat(badint1, badstring, badint2, badint3);
  63     fchownat(badint1, badstring, badint2, badint3, badint4);
  64 }
  65