[Buildroot] [PATCH] package/makedevs: add "l" type for symlinks ownership change
angelo70 at gmail.com
angelo70 at gmail.com
Sat Oct 12 20:46:17 UTC 2013
From: Angelo Dureghello <angelo at barix.com>
Add to makedevs the 'l' type, to allow symlinks ownership change.
Add related change on the makedevs doc.
Singed-off-by: Angelo Dureghello <angelo at barix.com>
---
docs/manual/makedev-syntax.txt | 1 +
package/makedevs/makedevs.c | 12 ++++++++++++
2 files changed, 13 insertions(+)
diff --git a/docs/manual/makedev-syntax.txt b/docs/manual/makedev-syntax.txt
index 2c98531..2392dc1 100644
--- a/docs/manual/makedev-syntax.txt
+++ b/docs/manual/makedev-syntax.txt
@@ -27,6 +27,7 @@ There are a few non-trivial blocks here:
* c: a character device file
* b: a block device file
* p: a named pipe
+ * l: a symbolic link, for ownership changes only
- +mode+, +uid+ and +gid+ are the usual permissions settings
- +major+ and +minor+ are here for device files - set to - for other
files
diff --git a/package/makedevs/makedevs.c b/package/makedevs/makedevs.c
index ab90b93..026533e 100644
--- a/package/makedevs/makedevs.c
+++ b/package/makedevs/makedevs.c
@@ -474,6 +474,18 @@ int main(int argc, char **argv)
ret = EXIT_FAILURE;
goto loop;
}
+ } else if (type == 'l') {
+ struct stat st;
+ if ((lstat(full_name, &st) < 0 || !S_ISLNK(st.st_mode))) {
+ bb_perror_msg("line %d: invalid link for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
+ if (lchown(full_name, uid, gid) == -1) {
+ bb_perror_msg("line %d: chown failed for %s", linenum, full_name);
+ ret = EXIT_FAILURE;
+ goto loop;
+ }
} else
{
dev_t rdev;
--
1.8.4.rc3
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