diff options
| -rw-r--r-- | lib/libalpm/remove.c | 40 |
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; |