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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-26 16:18:36 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-26 16:18:36 +0000
commit6c3ea4f47ea280811a7fe53a22f7832e4533c9ec (patch)
tree3d7ed5da23b5dbf6f9e450dfb61642832249c31e /libmisc/chowndir.c
parentAdding upstream version 1:4.13+dfsg1. (diff)
downloadshadow-6c3ea4f47ea280811a7fe53a22f7832e4533c9ec.tar.xz
shadow-6c3ea4f47ea280811a7fe53a22f7832e4533c9ec.zip
Adding upstream version 1:4.15.2.upstream/1%4.15.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libmisc/chowndir.c')
-rw-r--r--libmisc/chowndir.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/libmisc/chowndir.c b/libmisc/chowndir.c
deleted file mode 100644
index d31618a..0000000
--- a/libmisc/chowndir.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 1992 - 1993, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
- * SPDX-FileCopyrightText: 2010 - , Nicolas François
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <config.h>
-
-#ident "$Id$"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include "prototypes.h"
-#include "defines.h"
-#include <fcntl.h>
-#include <stdio.h>
-#include <unistd.h>
-
-static int chown_tree_at (int at_fd,
- const char *path,
- uid_t old_uid,
- uid_t new_uid,
- gid_t old_gid,
- gid_t new_gid)
-{
- DIR *dir;
- const struct dirent *ent;
- struct stat dir_sb;
- int dir_fd, rc = 0;
-
- dir_fd = openat (at_fd, path, O_RDONLY | O_DIRECTORY | O_NOFOLLOW | O_CLOEXEC);
- if (dir_fd < 0) {
- return -1;
- }
-
- dir = fdopendir (dir_fd);
- if (!dir) {
- (void) close (dir_fd);
- return -1;
- }
-
- /*
- * Open the directory and read each entry. Every entry is tested
- * to see if it is a directory, and if so this routine is called
- * recursively. If not, it is checked to see if an ownership
- * shall be changed.
- */
- while ((ent = readdir (dir))) {
- uid_t tmpuid = (uid_t) -1;
- gid_t tmpgid = (gid_t) -1;
- struct stat ent_sb;
-
- /*
- * Skip the "." and ".." entries
- */
- if ( (strcmp (ent->d_name, ".") == 0)
- || (strcmp (ent->d_name, "..") == 0)) {
- continue;
- }
-
- rc = fstatat (dirfd(dir), ent->d_name, &ent_sb, AT_SYMLINK_NOFOLLOW);
- if (rc < 0) {
- break;
- }
-
- if (S_ISDIR (ent_sb.st_mode)) {
- /*
- * Do the entire subdirectory.
- */
- rc = chown_tree_at (dirfd(dir), ent->d_name, old_uid, new_uid, old_gid, new_gid);
- if (0 != rc) {
- break;
- }
- }
-
- /*
- * By default, the IDs are not changed (-1).
- *
- * If the file is not owned by the user, the owner is not
- * changed.
- *
- * If the file is not group-owned by the group, the
- * group-owner is not changed.
- */
- if (((uid_t) -1 == old_uid) || (ent_sb.st_uid == old_uid)) {
- tmpuid = new_uid;
- }
- if (((gid_t) -1 == old_gid) || (ent_sb.st_gid == old_gid)) {
- tmpgid = new_gid;
- }
- if (((uid_t) -1 != tmpuid) || ((gid_t) -1 != tmpgid)) {
- rc = fchownat (dirfd(dir), ent->d_name, tmpuid, tmpgid, AT_SYMLINK_NOFOLLOW);
- if (0 != rc) {
- break;
- }
- }
- }
-
- /*
- * Now do the root of the tree
- */
- if ((0 == rc) && (fstat (dirfd(dir), &dir_sb) == 0)) {
- uid_t tmpuid = (uid_t) -1;
- gid_t tmpgid = (gid_t) -1;
- if (((uid_t) -1 == old_uid) || (dir_sb.st_uid == old_uid)) {
- tmpuid = new_uid;
- }
- if (((gid_t) -1 == old_gid) || (dir_sb.st_gid == old_gid)) {
- tmpgid = new_gid;
- }
- if (((uid_t) -1 != tmpuid) || ((gid_t) -1 != tmpgid)) {
- rc = fchown (dirfd(dir), tmpuid, tmpgid);
- }
- } else {
- rc = -1;
- }
-
- (void) closedir (dir);
-
- return rc;
-}
-
-/*
- * chown_tree - change ownership of files in a directory tree
- *
- * chown_dir() walks a directory tree and changes the ownership
- * of all files owned by the provided user ID.
- *
- * Only files owned (resp. group-owned) by old_uid (resp. by old_gid)
- * will have their ownership (resp. group-ownership) modified, unless
- * old_uid (resp. old_gid) is set to -1.
- *
- * new_uid and new_gid can be set to -1 to indicate that no owner or
- * group-owner shall be changed.
- */
-int chown_tree (const char *root,
- uid_t old_uid,
- uid_t new_uid,
- gid_t old_gid,
- gid_t new_gid)
-{
- return chown_tree_at (AT_FDCWD, root, old_uid, new_uid, old_gid, new_gid);
-}