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Diffstat (limited to 'libbb')
-rw-r--r--libbb/copy_file.c103
1 files changed, 44 insertions, 59 deletions
diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index cd6d38022..991fa8f5b 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -4,19 +4,7 @@
*
* Copyright (C) 2001 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
*/
@@ -32,6 +20,13 @@
#include "busybox.h"
+/* Compiler version-specific crap that should be in a header file somewhere. */
+
+#if !((__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1))
+#define lchown chown
+#endif
+
+
int copy_file(const char *source, const char *dest, int flags)
{
struct stat source_stat;
@@ -100,7 +95,7 @@ int copy_file(const char *source, const char *dest, int flags)
if ((dp = opendir(source)) == NULL) {
bb_perror_msg("unable to open directory `%s'", source);
status = -1;
- goto end;
+ goto preserve_status;
}
while ((d = readdir(dp)) != NULL) {
@@ -123,7 +118,8 @@ int copy_file(const char *source, const char *dest, int flags)
bb_perror_msg("unable to change permissions of `%s'", dest);
status = -1;
}
- } else if (S_ISREG(source_stat.st_mode)) {
+ } else if (S_ISREG(source_stat.st_mode) || (flags & FILEUTILS_DEREFERENCE))
+ {
int src_fd;
int dst_fd;
#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
@@ -138,6 +134,7 @@ int copy_file(const char *source, const char *dest, int flags)
return 0;
}
+ add_to_ino_dev_hashtable(&source_stat, dest);
#endif
src_fd = open(source, O_RDONLY);
if (src_fd == -1) {
@@ -193,8 +190,7 @@ int copy_file(const char *source, const char *dest, int flags)
bb_perror_msg("unable to close `%s'", source);
status = -1;
}
- }
- else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
+ } else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
S_ISSOCK(source_stat.st_mode) || S_ISFIFO(source_stat.st_mode) ||
S_ISLNK(source_stat.st_mode)) {
@@ -208,65 +204,54 @@ int copy_file(const char *source, const char *dest, int flags)
return -1;
}
}
- } else {
- bb_error_msg("internal error: unrecognized file type");
- return -1;
- }
- if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
- S_ISSOCK(source_stat.st_mode)) {
- if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
- bb_perror_msg("unable to create `%s'", dest);
- return -1;
- }
- } else if (S_ISFIFO(source_stat.st_mode)) {
- if (mkfifo(dest, source_stat.st_mode) < 0) {
- bb_perror_msg("cannot create fifo `%s'", dest);
- return -1;
- }
- } else if (S_ISLNK(source_stat.st_mode)) {
- char *lpath;
-
- lpath = xreadlink(source);
- if (symlink(lpath, dest) < 0) {
- bb_perror_msg("cannot create symlink `%s'", dest);
- return -1;
- }
- free(lpath);
+ if (S_ISFIFO(source_stat.st_mode)) {
+ if (mkfifo(dest, source_stat.st_mode) < 0) {
+ bb_perror_msg("cannot create fifo `%s'", dest);
+ return -1;
+ }
+ } else if (S_ISLNK(source_stat.st_mode)) {
+ char *lpath;
-#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
- if (flags & FILEUTILS_PRESERVE_STATUS)
- if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
- bb_perror_msg("unable to preserve ownership of `%s'", dest);
-#endif
+ lpath = xreadlink(source);
+ if (symlink(lpath, dest) < 0) {
+ bb_perror_msg("cannot create symlink `%s'", dest);
+ return -1;
+ }
+ free(lpath);
-#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
- add_to_ino_dev_hashtable(&source_stat, dest);
-#endif
+ if (flags & FILEUTILS_PRESERVE_STATUS)
+ if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
+ bb_perror_msg("unable to preserve ownership of `%s'", dest);
- return 0;
- }
+ return 0;
-#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
- if (! S_ISDIR(source_stat.st_mode)) {
- add_to_ino_dev_hashtable(&source_stat, dest);
+ } else {
+ if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
+ bb_perror_msg("unable to create `%s'", dest);
+ return -1;
+ }
+ }
+ } else {
+ bb_error_msg("internal error: unrecognized file type");
+ return -1;
}
-#endif
-end:
+preserve_status:
if (flags & FILEUTILS_PRESERVE_STATUS) {
struct utimbuf times;
+ char *msg="unable to preserve %s of `%s'";
times.actime = source_stat.st_atime;
times.modtime = source_stat.st_mtime;
if (utime(dest, &times) < 0)
- bb_perror_msg("unable to preserve times of `%s'", dest);
+ bb_perror_msg(msg, "times", dest);
if (chown(dest, source_stat.st_uid, source_stat.st_gid) < 0) {
source_stat.st_mode &= ~(S_ISUID | S_ISGID);
- bb_perror_msg("unable to preserve ownership of `%s'", dest);
+ bb_perror_msg(msg, "ownership", dest);
}
if (chmod(dest, source_stat.st_mode) < 0)
- bb_perror_msg("unable to preserve permissions of `%s'", dest);
+ bb_perror_msg(msg, "permissions", dest);
}
return status;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 20:31:51 +0000