| #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-renameat.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); |
| puts ("file created"); |
| |
| struct stat64 st1; |
| if (fstat64 (fd, &st1) != 0) |
| { |
| puts ("fstat64 failed"); |
| return 1; |
| } |
| |
| /* Using a descriptor for a normal file must fail. */ |
| if (renameat (fd, "some-file", dir_fd, "another-file") == 0) |
| { |
| puts ("renameat with normal file descriptor succeeded"); |
| return 1; |
| } |
| if (errno != ENOTDIR) |
| { |
| puts ("error for renameat with normal file descriptor not ENOTDIR"); |
| return 1; |
| } |
| |
| if (renameat (dir_fd, "some-file", fd, "another-file") == 0) |
| { |
| puts ("2nd renameat with normal file descriptor succeeded"); |
| return 1; |
| } |
| if (errno != ENOTDIR) |
| { |
| puts ("error for 2nd renameat with normal file descriptor not ENOTDIR"); |
| return 1; |
| } |
| |
| close (fd); |
| |
| if (renameat (dir_fd, "some-file", dir_fd, "another-file") != 0) |
| { |
| puts ("renameat failed"); |
| return 1; |
| } |
| |
| struct stat64 st2; |
| if (fstatat64 (dir_fd, "some-file", &st2, 0) == 0) |
| { |
| puts ("fstatat64 succeeded"); |
| return 1; |
| } |
| if (errno != ENOENT) |
| { |
| puts ("fstatat64 did not fail with ENOENT"); |
| return 1; |
| } |
| |
| if (fstatat64 (dir_fd, "another-file", &st2, 0) != 0) |
| { |
| puts ("2nd fstatat64 failed"); |
| return 1; |
| } |
| |
| if (st1.st_dev != st2.st_dev |
| || st1.st_ino != st2.st_ino |
| || st1.st_size != st2.st_size) |
| { |
| puts ("stat results do not match"); |
| return 1; |
| } |
| |
| /* Create a file descriptor which is closed again right away. */ |
| int dir_fd2 = dup (dir_fd); |
| if (dir_fd2 == -1) |
| { |
| puts ("dup failed"); |
| return 1; |
| } |
| close (dir_fd2); |
| |
| if (renameat (dir_fd2, "another-file", dir_fd, "some-file") == 0) |
| { |
| puts ("renameat with closed file descriptor succeeded"); |
| return 1; |
| } |
| if (errno != EBADF) |
| { |
| puts ("error for renameat with closed file descriptor not EBADF"); |
| return 1; |
| } |
| |
| if (renameat (dir_fd, "another-file", dir_fd2, "some-file") == 0) |
| { |
| puts ("2nd renameat with closed file descriptor succeeded"); |
| return 1; |
| } |
| if (errno != EBADF) |
| { |
| puts ("error for 2nd renameat with closed file descriptor not EBADF"); |
| return 1; |
| } |
| |
| if (unlinkat (dir_fd, "another-file", 0) != 0) |
| { |
| puts ("unlinkat failed"); |
| return 1; |
| } |
| |
| if (renameat (-1, "another-file", dir_fd, "some-file") == 0) |
| { |
| puts ("renameat with invalid file descriptor succeeded"); |
| return 1; |
| } |
| if (errno != EBADF) |
| { |
| puts ("error for renameat with invalid file descriptor not EBADF"); |
| return 1; |
| } |
| |
| if (renameat (dir_fd, "another-file", -1, "some-file") == 0) |
| { |
| puts ("2nd renameat with invalid file descriptor succeeded"); |
| return 1; |
| } |
| if (errno != EBADF) |
| { |
| puts ("error for 2nd renameat with invalid file descriptor not EBADF"); |
| return 1; |
| } |
| |
| close (dir_fd); |
| |
| return 0; |
| } |