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#include <dirent.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
static void prepare (void);
#define PREPARE(argc, argv) prepare ()
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
static int dir_fd;
static void
prepare (void)
{
size_t test_dir_len = strlen (test_dir);
static const char dir_name[] = "/tst-mkdirat.XXXXXX";
size_t dirbuflen = test_dir_len + sizeof (dir_name);
char *dirbuf = malloc (dirbuflen);
if (dirbuf == NULL)
{
puts ("out of memory");
exit (1);
}
snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
if (mkdtemp (dirbuf) == NULL)
{
puts ("cannot create temporary directory");
exit (1);
}
add_temp_file (dirbuf);
dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
if (dir_fd == -1)
{
puts ("cannot open directory");
exit (1);
}
}
static int
do_test (void)
{
/* Find the current umask. */
mode_t mask = umask (022);
umask (mask);
/* fdopendir takes over the descriptor, make a copy. */
int dupfd = dup (dir_fd);
if (dupfd == -1)
{
puts ("dup failed");
return 1;
}
if (lseek (dupfd, 0, SEEK_SET) != 0)
{
puts ("1st lseek failed");
return 1;
}
/* The directory should be empty safe the . and .. files. */
DIR *dir = fdopendir (dupfd);
if (dir == NULL)
{
puts ("fdopendir failed");
return 1;
}
struct dirent64 *d;
while ((d = readdir64 (dir)) != NULL)
if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
{
printf ("temp directory contains file \"%s\"\n", d->d_name);
return 1;
}
closedir (dir);
/* Create a new directory. */
int e = mkdirat (dir_fd, "some-dir", 0777);
if (e == -1)
{
if (errno == ENOSYS)
{
puts ("*at functions not supported");
return 0;
}
puts ("directory creation failed");
return 1;
}
struct stat64 st1;
if (fstatat64 (dir_fd, "some-dir", &st1, 0) != 0)
{
puts ("fstat64 failed");
return 1;
}
if (!S_ISDIR (st1.st_mode))
{
puts ("mkdirat did not create a directory");
return 1;
}
if ((st1.st_mode & 01777) != (~mask & 0777))
{
printf ("mkdirat created directory with wrong mode %o, expected %o\n",
(unsigned int) (st1.st_mode & 01777),
(unsigned int) (~mask & 0777));
return 1;
}
dupfd = dup (dir_fd);
if (dupfd == -1)
{
puts ("dup failed");
return 1;
}
if (lseek (dupfd, 0, SEEK_SET) != 0)
{
puts ("1st lseek failed");
return 1;
}
dir = fdopendir (dupfd);
if (dir == NULL)
{
puts ("2nd fdopendir failed");
return 1;
}
bool has_some_dir = false;
while ((d = readdir64 (dir)) != NULL)
if (strcmp (d->d_name, "some-dir") == 0)
{
has_some_dir = true;
if (d->d_type != DT_UNKNOWN && d->d_type != DT_DIR)
{
puts ("d_type for some-dir wrong");
return 1;
}
}
else if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
{
printf ("temp directory contains file \"%s\"\n", d->d_name);
return 1;
}
closedir (dir);
if (!has_some_dir)
{
puts ("some-dir not in directory list");
return 1;
}
if (unlinkat (dir_fd, "some-dir", AT_REMOVEDIR) != 0)
{
puts ("unlinkat failed");
return 1;
}
/* Test again with a different mode. */
umask (0);
e = mkdirat (dir_fd, "some-dir", 01755);
umask (mask);
if (e == -1)
{
puts ("directory creation (different mode) failed");
return 1;
}
if (fstatat64 (dir_fd, "some-dir", &st1, 0) != 0)
{
puts ("fstat64 (different mode) failed");
return 1;
}
if (!S_ISDIR (st1.st_mode))
{
puts ("mkdirat (different mode) did not create a directory");
return 1;
}
if ((st1.st_mode & 01777) != 01755)
{
printf ("mkdirat (different mode) created directory with wrong mode %o\n",
(unsigned int) (st1.st_mode & 01777));
return 1;
}
if (unlinkat (dir_fd, "some-dir", AT_REMOVEDIR) != 0)
{
puts ("unlinkat (different mode) failed");
return 1;
}
close (dir_fd);
return 0;
}
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