/* Copyright (C) 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2000. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <dirent.h> #include <errno.h> #include <fcntl.h> #include <mcheck.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/stat.h> /* We expect four arguments: - source directory name - object directory - common object directory - the program name with path */ int main (int argc, char *argv[]) { const char *srcdir; const char *objdir; const char *common_objdir; const char *progpath; struct stat64 st1; struct stat64 st2; struct stat64 st3; DIR *dir1; DIR *dir2; int result = 0; struct dirent64 *d; struct dirent64 direntbuf; char *objdir_copy1; char *objdir_copy2; char *buf; int fd; mtrace (); if (argc < 5) { puts ("not enough parameters"); exit (1); } /* Make parameters available with nicer names. */ srcdir = argv[1]; objdir = argv[2]; common_objdir = argv[3]; progpath = argv[4]; /* First test the current source dir. We cannot really compare the result of `getpwd' with the srcdir string but we have other means. */ if (stat64 (".", &st1) < 0) { printf ("cannot stat starting directory: %m\n"); exit (1); } if (chdir (srcdir) < 0) { printf ("cannot change to source directory: %m\n"); exit (1); } if (stat64 (".", &st2) < 0) { printf ("cannot stat source directory: %m\n"); exit (1); } /* The two last stat64 calls better were for the same directory. */ if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) { printf ("stat of source directory failed: (%lld,%lld) vs (%lld,%lld)\n", (long long int) st1.st_dev, (long long int) st1.st_ino, (long long int) st2.st_dev, (long long int) st2.st_ino); exit (1); } /* Change to the object directory. */ if (chdir (objdir) < 0) { printf ("cannot change to object directory: %m\n"); exit (1); } if (stat64 (".", &st1) < 0) { printf ("cannot stat object directory: %m\n"); exit (1); } /* Is this the same we get as with the full path? */ if (stat64 (objdir, &st2) < 0) { printf ("cannot stat object directory with full path: %m\n"); exit (1); } if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) { printf ("stat of object directory failed: (%lld,%lld) vs (%lld,%lld)\n", (long long int) st1.st_dev, (long long int) st1.st_ino, (long long int) st2.st_dev, (long long int) st2.st_ino); exit (1); } objdir_copy1 = getcwd (NULL, 0); if (objdir_copy1 == NULL) { printf ("cannot get current directory name for object directory: %m\n"); result = 1; } /* First test: this directory must include our program. */ if (stat64 (progpath, &st2) < 0) { printf ("cannot stat program: %m\n"); exit (1); } dir1 = opendir ("."); if (dir1 == NULL) { printf ("cannot open object directory: %m\n"); exit (1); } while ((d = readdir64 (dir1)) != NULL) { #ifdef _DIRENT_HAVE_D_TYPE if (d->d_type != DT_UNKNOWN && d->d_type != DT_REG) continue; #endif if (d->d_ino == st2.st_ino) { /* Might be it. Test the device. We could use the st_dev element from st1 but what the heck, do more testing. */ if (stat64 (d->d_name, &st3) < 0) { printf ("cannot stat entry from readdir: %m\n"); result = 1; d = NULL; break; } if (st3.st_dev == st2.st_dev) break; } } if (d == NULL) { puts ("haven't found program in object directory"); result = 1; } /* We leave dir1 open. */ /* Stat using file descriptor. */ if (fstat64 (dirfd (dir1), &st2) < 0) { printf ("cannot fstat object directory: %m\n"); result = 1; } if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) { printf ("fstat of object directory failed: (%lld,%lld) vs (%lld,%lld)\n", (long long int) st1.st_dev, (long long int) st1.st_ino, (long long int) st2.st_dev, (long long int) st2.st_ino); exit (1); } if (chdir ("..") < 0) { printf ("cannot go to common object directory with \"..\": %m\n"); exit (1); } if (stat64 (".", &st1) < 0) { printf ("cannot stat common object directory: %m\n"); exit (1); } /* Is this the same we get as with the full path? */ if (stat64 (common_objdir, &st2) < 0) { printf ("cannot stat common object directory with full path: %m\n"); exit (1); } if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) { printf ("stat of object directory failed: (%lld,%lld) vs (%lld,%lld)\n", (long long int) st1.st_dev, (long long int) st1.st_ino, (long long int) st2.st_dev, (long long int) st2.st_ino); exit (1); } /* Stat using file descriptor. */ if (fstat64 (dirfd (dir1), &st2) < 0) { printf ("cannot fstat object directory: %m\n"); result = 1; } dir2 = opendir (common_objdir); if (dir2 == NULL) { printf ("cannot open common object directory: %m\n"); exit (1); } while ((d = readdir64 (dir2)) != NULL) { #ifdef _DIRENT_HAVE_D_TYPE if (d->d_type != DT_UNKNOWN && d->d_type != DT_DIR) continue; #endif if (d->d_ino == st2.st_ino) { /* Might be it. Test the device. We could use the st_dev element from st1 but what the heck, do more testing. */ if (stat64 (d->d_name, &st3) < 0) { printf ("cannot stat entry from readdir: %m\n"); result = 1; d = NULL; break; } if (st3.st_dev == st2.st_dev) break; } } /* This better should be the object directory again. */ if (fchdir (dirfd (dir1)) < 0) { printf ("cannot fchdir to object directory: %m\n"); exit (1); } objdir_copy2 = getcwd (NULL, 0); if (objdir_copy2 == NULL) { printf ("cannot get current directory name for object directory: %m\n"); result = 1; } if (strcmp (objdir_copy1, objdir_copy2) != 0) { puts ("getcwd returned a different string the second time"); result = 1; } /* This better should be the common object directory again. */ if (fchdir (dirfd (dir2)) < 0) { printf ("cannot fchdir to common object directory: %m\n"); exit (1); } if (stat64 (".", &st2) < 0) { printf ("cannot stat common object directory: %m\n"); exit (1); } if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) { printf ("stat of object directory failed: (%lld,%lld) vs (%lld,%lld)\n", (long long int) st1.st_dev, (long long int) st1.st_ino, (long long int) st2.st_dev, (long long int) st2.st_ino); exit (1); } buf = (char *) malloc (strlen (objdir_copy1) + 1 + sizeof "tst-dir.XXXXXX"); if (buf == NULL) { printf ("cannot allocate buffer: %m"); exit (1); } stpcpy (stpcpy (stpcpy (buf, objdir_copy1), "/"), "tst-dir.XXXXXX"); if (mkdtemp (buf) == NULL) { printf ("cannot create test directory in object directory: %m\n"); exit (1); } if (stat64 (buf, &st1) < 0) { printf ("cannot stat new directory \"%s\": %m\n", buf); exit (1); } if (chmod (buf, 0700) < 0) { printf ("cannot change mode of new directory: %m\n"); exit (1); } /* Try to find the new directory. */ rewinddir (dir1); while (readdir64_r (dir1, &direntbuf, &d) == 0 && d != NULL) { #ifdef _DIRENT_HAVE_D_TYPE if (d->d_type != DT_UNKNOWN && d->d_type != DT_DIR) continue; #endif if (d->d_ino == st1.st_ino) { /* Might be it. Test the device. We could use the st_dev element from st1 but what the heck, do more testing. */ size_t len = strlen (objdir) + 1 + _D_EXACT_NAMLEN (d) + 1; char tmpbuf[len]; stpcpy (stpcpy (stpcpy (tmpbuf, objdir), "/"), d->d_name); if (stat64 (tmpbuf, &st3) < 0) { printf ("cannot stat entry from readdir: %m\n"); result = 1; d = NULL; break; } if (st3.st_dev == st2.st_dev && strcmp (d->d_name, buf + strlen (buf) - 14) == 0) break; } } if (d == NULL) { printf ("haven't found new directory \"%s\"\n", buf); exit (1); } if (closedir (dir2) < 0) { printf ("closing dir2 failed: %m\n"); result = 1; } if (chdir (buf) < 0) { printf ("cannot change to new directory: %m\n"); exit (1); } dir2 = opendir (buf); if (dir2 == NULL) { printf ("cannot open new directory: %m\n"); exit (1); } if (fstat64 (dirfd (dir2), &st2) < 0) { printf ("cannot fstat new directory \"%s\": %m\n", buf); exit (1); } if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) { printf ("stat of new directory failed: (%lld,%lld) vs (%lld,%lld)\n", (long long int) st1.st_dev, (long long int) st1.st_ino, (long long int) st2.st_dev, (long long int) st2.st_ino); exit (1); } if (mkdir ("another-dir", 0777) < 0) { printf ("cannot create \"another-dir\": %m\n"); exit (1); } fd = open ("and-a-file", O_RDWR | O_CREAT | O_EXCL, 0666); if (fd == -1) { printf ("cannot create \"and-a-file\": %m\n"); exit (1); } close (fd); /* Some tests about error reporting. */ errno = 0; if (chdir ("and-a-file") >= 0) { printf ("chdir to \"and-a-file\" succeeded\n"); exit (1); } if (errno != ENOTDIR) { printf ("chdir to \"and-a-file\" didn't set correct error\n"); result = 1; } errno = 0; if (chdir ("and-a-file/..") >= 0) { printf ("chdir to \"and-a-file/..\" succeeded\n"); exit (1); } if (errno != ENOTDIR) { printf ("chdir to \"and-a-file/..\" didn't set correct error\n"); result = 1; } errno = 0; if (chdir ("another-dir/../and-a-file") >= 0) { printf ("chdir to \"another-dir/../and-a-file\" succeeded\n"); exit (1); } if (errno != ENOTDIR) { printf ("chdir to \"another-dir/../and-a-file\" didn't set correct error\n"); result = 1; } /* We now should have a directory and a file in the new directory. */ rewinddir (dir2); while (readdir64_r (dir2, &direntbuf, &d) == 0 && d != NULL) { if (strcmp (d->d_name, ".") == 0 || strcmp (d->d_name, "..") == 0 || strcmp (d->d_name, "another-dir") == 0) { #ifdef _DIRENT_HAVE_D_TYPE if (d->d_type != DT_UNKNOWN && d->d_type != DT_DIR) { printf ("d_type for \"%s\" is wrong\n", d->d_name); result = 1; } #endif if (stat64 (d->d_name, &st3) < 0) { printf ("cannot stat \"%s\" is wrong\n", d->d_name); result = 1; } else if (! S_ISDIR (st3.st_mode)) { printf ("\"%s\" is no directory\n", d->d_name); result = 1; } } else if (strcmp (d->d_name, "and-a-file") == 0) { #ifdef _DIRENT_HAVE_D_TYPE if (d->d_type != DT_UNKNOWN && d->d_type != DT_REG) { printf ("d_type for \"%s\" is wrong\n", d->d_name); result = 1; } #endif if (stat64 (d->d_name, &st3) < 0) { printf ("cannot stat \"%s\" is wrong\n", d->d_name); result = 1; } else if (! S_ISREG (st3.st_mode)) { printf ("\"%s\" is no regular file\n", d->d_name); result = 1; } } else { printf ("unexpected directory entry \"%s\"\n", d->d_name); result = 1; } } if (stat64 ("does-not-exist", &st1) >= 0) { puts ("stat for unexisting file did not fail"); result = 1; } /* Free all resources. */ if (closedir (dir1) < 0) { printf ("closing dir1 failed: %m\n"); result = 1; } if (closedir (dir2) < 0) { printf ("second closing dir2 failed: %m\n"); result = 1; } if (rmdir ("another-dir") < 0) { printf ("cannot remove \"another-dir\": %m\n"); result = 1; } if (unlink ("and-a-file") < 0) { printf ("cannot remove \"and-a-file\": %m\n"); result = 1; } /* One more test before we leave: mkdir() is supposed to fail with EEXIST if the named file is a symlink. */ if (symlink ("a-symlink", "a-symlink") != 0) { printf ("cannot create symlink \"a-symlink\": %m\n"); result = 1; } else { if (mkdir ("a-symlink", 0666) == 0) { puts ("can make directory \"a-symlink\""); result = 1; } else if (errno != EEXIST) { puts ("mkdir(\"a-symlink\") does not fail with EEXIST\n"); result = 1; } if (unlink ("a-symlink") < 0) { printf ("cannot unlink \"a-symlink\": %m\n"); result = 1; } } if (chdir (srcdir) < 0) { printf ("cannot change back to source directory: %m\n"); exit (1); } if (rmdir (buf) < 0) { printf ("cannot remove \"%s\": %m\n", buf); result = 1; } free (objdir_copy1); free (objdir_copy2); if (result == 0) puts ("all OK"); return result; }