src/test/test-acl-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <fcntl.h>
   4 #include <stdlib.h>
   5 #include <sys/stat.h>
   6 #include <unistd.h>
   7
   8 #include "acl-util.h"
   9 #include "fd-util.h"
  10 #include "format-util.h"
  11 #include "string-util.h"
  12 #include "tmpfile-util.h"
  13 #include "user-util.h"
  14
  15 static void test_add_acls_for_user(void) {
  16         char fn[] = "/tmp/test-empty.XXXXXX";
  17         _cleanup_close_ int fd = -1;
  18         char *cmd;
  19         uid_t uid;
  20         int r;
  21
  22         log_info("/* %s */", __func__);
  23
  24         fd = mkostemp_safe(fn);
  25         assert_se(fd >= 0);
  26
  27         /* Use the mode that user journal files use */
  28         assert_se(fchmod(fd, 0640) == 0);
  29
  30         cmd = strjoina("ls -l ", fn);
  31         assert_se(system(cmd) == 0);
  32
  33         cmd = strjoina("getfacl -p ", fn);
  34         assert_se(system(cmd) == 0);
  35
  36         if (getuid() == 0) {
  37                 const char *nobody = NOBODY_USER_NAME;
  38                 r = get_user_creds(&nobody, &uid, NULL, NULL, NULL, 0);
  39                 if (r < 0)
  40                         uid = 0;
  41         } else
  42                 uid = getuid();
  43
  44         r = fd_add_uid_acl_permission(fd, uid, true, false, false);
  45         log_info_errno(r, "fd_add_uid_acl_permission(%i, "UID_FMT", true, false, false): %m", fd, uid);
  46         assert_se(r >= 0);
  47
  48         cmd = strjoina("ls -l ", fn);
  49         assert_se(system(cmd) == 0);
  50
  51         cmd = strjoina("getfacl -p ", fn);
  52         assert_se(system(cmd) == 0);
  53
  54         /* set the acls again */
  55
  56         r = fd_add_uid_acl_permission(fd, uid, true, false, false);
  57         assert_se(r >= 0);
  58
  59         cmd = strjoina("ls -l ", fn);
  60         assert_se(system(cmd) == 0);
  61
  62         cmd = strjoina("getfacl -p ", fn);
  63         assert_se(system(cmd) == 0);
  64
  65         unlink(fn);
  66 }
  67
  68 int main(int argc, char **argv) {
  69         test_add_acls_for_user();
  70
  71         return 0;
  72 }