2005-11-10 01:12:21 +01:00
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#include <dirent.h>
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#include <fcntl.h>
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2017-02-16 23:31:42 +01:00
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#include <stdbool.h>
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2005-11-10 01:12:21 +01:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static void prepare (void);
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#define PREPARE(argc, argv) prepare ()
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static int do_test (void);
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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static int dir_fd;
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static void
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prepare (void)
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{
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size_t test_dir_len = strlen (test_dir);
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static const char dir_name[] = "/tst-openat.XXXXXX";
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size_t dirbuflen = test_dir_len + sizeof (dir_name);
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char *dirbuf = malloc (dirbuflen);
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if (dirbuf == NULL)
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{
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puts ("out of memory");
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exit (1);
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}
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snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
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if (mkdtemp (dirbuf) == NULL)
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{
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puts ("cannot create temporary directory");
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exit (1);
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}
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add_temp_file (dirbuf);
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dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
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if (dir_fd == -1)
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{
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puts ("cannot open directory");
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exit (1);
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}
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}
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static int
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do_test (void)
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{
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/* fdopendir takes over the descriptor, make a copy. */
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int dupfd = dup (dir_fd);
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if (dupfd == -1)
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{
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puts ("dup failed");
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return 1;
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}
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if (lseek (dupfd, 0, SEEK_SET) != 0)
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{
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puts ("1st lseek failed");
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return 1;
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}
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/* The directory should be empty safe the . and .. files. */
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DIR *dir = fdopendir (dupfd);
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if (dir == NULL)
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{
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puts ("fdopendir failed");
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return 1;
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}
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struct dirent64 *d;
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while ((d = readdir64 (dir)) != NULL)
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if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
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{
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printf ("temp directory contains file \"%s\"\n", d->d_name);
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return 1;
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}
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closedir (dir);
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/* Try to create a file. */
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int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
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if (fd == -1)
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{
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* io/Makefile (routines): Add fstatat, fstatat64, fxstatat, fxstatat64,
fchownat, and unlinkat.
(static-only-routines): Add fstatat and fstatat64.
(tests): Add tst-unlinkat, tst-fstatat, tst-futimesat, tst-renameat,
and tst-fchownat.
* io/Versions [GLIBC_2.4]: Add fchownat, __fxstatat, __fxstatat64,
and unlinkat.
* io/fcntl.h: Define AT_FDCWD, AT_SYMLINK_NOFOLLOW, and AT_REMOVEDIR.
* io/fstatat.c: New file.
* io/fstatat64.c: New file.
* io/sys/stat.h: Declare fstatat, fstatat64, __fxstatat, __fxstatat64
and define fstatat and fstatat64 inline functions.
* libio/stdio.h: Declare renameat.
* misc/Makefile (routines): Add futimesat.
* misc/Versions [GLIBC_2.4]: Add futimesat.
* posix/unistd.h: Declare fchownat and unlinkat.
* stdio-common/Makefile (routines): Add renameat.
* stdio-common/Versions [GLIBC_2.4]: Add renameat.
* sysdeps/generic/fchownat.c: New file.
* sysdeps/generic/futimesat.c: New file.
* sysdeps/generic/fxstatat.c: New file.
* sysdeps/generic/fxstatat64.c: New file.
* sysdeps/generic/renameat.c: New file.
* sysdeps/generic/unlinkat.c: New file.
* sysdeps/unix/sysv/linux/fchownat.c: New file.
* sysdeps/unix/sysv/linux/futimesat.c: New file.
* sysdeps/unix/sysv/linux/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/fxstatat64.c: New file.
* sysdeps/unix/sysv/linux/renameat.c: New file.
* sysdeps/unix/sysv/linux/unlinkat.c: New file.
* sysdeps/unix/sysv/linux/alpha/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/i386/fchownat.c: New file.
* sysdeps/unix/sysv/linux/i386/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/m68k/fchownat.c: New file.
* sysdeps/unix/sysv/linux/m68k/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/powerpc/fchownat.c: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c: New file.
* sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/sh/fchownat.c: New file.
* sysdeps/unix/sysv/linux/sh/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c: New file.
* sysdeps/unix/sysv/linux/wordsize-64/fxstatat64.c: New file.
* time/sys/time.h: Declare futimesat.
* include/fcntl.h: Declare __atfct_seterrno.
* sysdeps/unix/sysv/linux/openat.c (__atfct_seterrno): New function.
Split out from openat code and called.
(do_test): Allow openat to fail with ENOSYS. Handle AT_FDCWD.
* sysdeps/generic/openat.c: Handle AT_FDCWD.
* sysdeps/generic/openat64.c: Likewise.
* io/tst-unlinkat.c: New file.
* io/tst-fstatat.c: New file.
* io/tst-futimesat.c: New file.
* io/tst-renameat.c: New file.
* io/tst-fchownat.c: New file.
* io/tst-openat.c: Don't fail if openat is not implemented.
* sysdeps/unix/sysv/linux/powerpc/chown.c: Don't provide backward
compatibility code if new kernel is guaranteed.
* time/sys/time.h: Add a few nonnull attributes.
2005-11-11 21:02:07 +01:00
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if (errno == ENOSYS)
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{
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puts ("*at functions not supported");
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return 0;
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}
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2005-11-10 01:12:21 +01:00
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puts ("file creation failed");
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return 1;
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}
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write (fd, "hello", 5);
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2006-01-22 01:57:24 +01:00
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/* Before closing the file, try using this file descriptor to open
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another file. This must fail. */
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int fd2 = openat (fd, "should-not-work", O_CREAT|O_RDWR, 0666);
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if (fd2 != -1)
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{
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puts ("openat using descriptor for normal file worked");
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return 1;
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}
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if (errno != ENOTDIR)
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{
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puts ("error for openat using descriptor for normal file not ENOTDIR ");
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return 1;
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}
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2005-11-10 01:12:21 +01:00
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close (fd);
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puts ("file created");
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/* fdopendir takes over the descriptor, make a copy. */
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dupfd = dup (dir_fd);
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if (dupfd == -1)
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{
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puts ("dup failed");
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return 1;
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}
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if (lseek (dupfd, 0, SEEK_SET) != 0)
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{
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puts ("2nd lseek failed");
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return 1;
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}
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/* The directory should be empty safe the . and .. files. */
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dir = fdopendir (dupfd);
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if (dir == NULL)
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{
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puts ("fdopendir failed");
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return 1;
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}
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bool seen_file = false;
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while ((d = readdir64 (dir)) != NULL)
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if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
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{
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if (strcmp (d->d_name, "some-file") != 0)
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{
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printf ("temp directory contains file \"%s\"\n", d->d_name);
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return 1;
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}
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seen_file = true;
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}
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closedir (dir);
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if (!seen_file)
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{
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puts ("file not created in correct directory");
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return 1;
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}
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int cwdfd = open (".", O_RDONLY | O_DIRECTORY);
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if (cwdfd == -1)
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{
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puts ("cannot get descriptor for cwd");
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return 1;
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}
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if (fchdir (dir_fd) != 0)
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{
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puts ("1st fchdir failed");
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return 1;
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}
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if (unlink ("some-file") != 0)
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{
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puts ("unlink failed");
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return 1;
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}
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if (fchdir (cwdfd) != 0)
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{
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puts ("2nd fchdir failed");
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return 1;
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}
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close (dir_fd);
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close (cwdfd);
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2006-01-22 01:57:24 +01:00
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/* With the file descriptor closed the next call must fail. */
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fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
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if (fd != -1)
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{
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puts ("openat using closed descriptor succeeded");
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return 1;
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}
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if (errno != EBADF)
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{
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puts ("openat using closed descriptor did not set EBADF");
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return 1;
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}
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fd = openat (-1, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
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if (fd != -1)
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{
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puts ("openat using -1 descriptor succeeded");
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return 1;
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}
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if (errno != EBADF)
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{
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puts ("openat using -1 descriptor did not set EBADF");
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return 1;
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}
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2005-11-10 01:12:21 +01:00
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return 0;
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}
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