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-rw-r--r--lib/libalpm/remove.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/libalpm/remove.c b/lib/libalpm/remove.c
index 50fc93ca..64888c52 100644
--- a/lib/libalpm/remove.c
+++ b/lib/libalpm/remove.c
@@ -267,6 +267,37 @@ int _alpm_remove_prepare(alpm_handle_t *handle, alpm_list_t **data)
return 0;
}
+static int dir_is_mountpoint(alpm_handle_t *handle, const char *directory,
+ const struct stat *stbuf)
+{
+ char parent_dir[PATH_MAX];
+ struct stat parent_stbuf;
+ dev_t dir_st_dev;
+
+ if(stbuf == NULL) {
+ struct stat dir_stbuf;
+ if(stat(directory, &dir_stbuf) < 0) {
+ _alpm_log(handle, ALPM_LOG_DEBUG,
+ "failed to stat directory %s: %s",
+ directory, strerror(errno));
+ return 0;
+ }
+ dir_st_dev = dir_stbuf.st_dev;
+ } else {
+ dir_st_dev = stbuf->st_dev;
+ }
+
+ snprintf(parent_dir, PATH_MAX, "%s..", directory);
+ if(stat(parent_dir, &parent_stbuf) < 0) {
+ _alpm_log(handle, ALPM_LOG_DEBUG,
+ "failed to stat parent of %s: %s: %s",
+ directory, parent_dir, strerror(errno));
+ return 0;
+ }
+
+ return dir_st_dev != parent_stbuf.st_dev;
+}
+
/**
* @brief Check if alpm can delete a file.
*
@@ -286,6 +317,12 @@ static int can_remove_file(alpm_handle_t *handle, const alpm_file_t *file,
return 1;
}
+ if(file->name[strlen(file->name) - 1] == '/' &&
+ dir_is_mountpoint(handle, file->name, NULL)) {
+ /* we do not remove mountpoints */
+ return 1;
+ }
+
snprintf(filepath, PATH_MAX, "%s%s", handle->root, file->name);
/* If we fail write permissions due to a read-only filesystem, abort.
* Assume all other possible failures are covered somewhere else */
@@ -427,6 +464,9 @@ static int unlink_file(alpm_handle_t *handle, alpm_pkg_t *oldpkg,
fileobj->name)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
"keeping directory %s (in new package)\n", file);
+ } else if(dir_is_mountpoint(handle, file, &buf)) {
+ _alpm_log(handle, ALPM_LOG_DEBUG,
+ "keeping directory %s (mountpoint)\n", file);
} else {
/* one last check- does any other package own this file? */
alpm_list_t *local, *local_pkgs;