diff options
Diffstat (limited to 'io/tst-openat.c')
| -rw-r--r-- | io/tst-openat.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/io/tst-openat.c b/io/tst-openat.c deleted file mode 100644 index 0ceb745880..0000000000 --- a/io/tst-openat.c +++ /dev/null @@ -1,209 +0,0 @@ -#include <dirent.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.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-openat.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) -{ - /* 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); - - /* Try to create a file. */ - int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666); - if (fd == -1) - { - if (errno == ENOSYS) - { - puts ("*at functions not supported"); - return 0; - } - - puts ("file creation failed"); - return 1; - } - write (fd, "hello", 5); - - /* Before closing the file, try using this file descriptor to open - another file. This must fail. */ - int fd2 = openat (fd, "should-not-work", O_CREAT|O_RDWR, 0666); - if (fd2 != -1) - { - puts ("openat using descriptor for normal file worked"); - return 1; - } - if (errno != ENOTDIR) - { - puts ("error for openat using descriptor for normal file not ENOTDIR "); - return 1; - } - - close (fd); - puts ("file created"); - - /* fdopendir takes over the descriptor, make a copy. */ - dupfd = dup (dir_fd); - if (dupfd == -1) - { - puts ("dup failed"); - return 1; - } - if (lseek (dupfd, 0, SEEK_SET) != 0) - { - puts ("2nd lseek failed"); - return 1; - } - - /* The directory should be empty safe the . and .. files. */ - dir = fdopendir (dupfd); - if (dir == NULL) - { - puts ("fdopendir failed"); - return 1; - } - bool seen_file = false; - while ((d = readdir64 (dir)) != NULL) - if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) - { - if (strcmp (d->d_name, "some-file") != 0) - { - printf ("temp directory contains file \"%s\"\n", d->d_name); - return 1; - } - - seen_file = true; - } - closedir (dir); - - if (!seen_file) - { - puts ("file not created in correct directory"); - return 1; - } - - int cwdfd = open (".", O_RDONLY | O_DIRECTORY); - if (cwdfd == -1) - { - puts ("cannot get descriptor for cwd"); - return 1; - } - - if (fchdir (dir_fd) != 0) - { - puts ("1st fchdir failed"); - return 1; - } - - if (unlink ("some-file") != 0) - { - puts ("unlink failed"); - return 1; - } - - if (fchdir (cwdfd) != 0) - { - puts ("2nd fchdir failed"); - return 1; - } - - close (dir_fd); - close (cwdfd); - - /* With the file descriptor closed the next call must fail. */ - fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666); - if (fd != -1) - { - puts ("openat using closed descriptor succeeded"); - return 1; - } - if (errno != EBADF) - { - puts ("openat using closed descriptor did not set EBADF"); - return 1; - } - - fd = openat (-1, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666); - if (fd != -1) - { - puts ("openat using -1 descriptor succeeded"); - return 1; - } - if (errno != EBADF) - { - puts ("openat using -1 descriptor did not set EBADF"); - return 1; - } - - return 0; -} |