diff options
Diffstat (limited to 'lib/sqfs/src/dir_reader/get_path.c')
-rw-r--r-- | lib/sqfs/src/dir_reader/get_path.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/lib/sqfs/src/dir_reader/get_path.c b/lib/sqfs/src/dir_reader/get_path.c deleted file mode 100644 index 847bfd3..0000000 --- a/lib/sqfs/src/dir_reader/get_path.c +++ /dev/null @@ -1,81 +0,0 @@ -/* SPDX-License-Identifier: LGPL-3.0-or-later */ -/* - * get_path.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#define SQFS_BUILDING_DLL -#include "internal.h" - -#include <string.h> -#include <stdlib.h> - -int sqfs_tree_node_get_path(const sqfs_tree_node_t *node, char **out) -{ - const sqfs_tree_node_t *it; - size_t clen, len = 0; - char *str, *ptr; - - *out = NULL; - - if (node == NULL) - return SQFS_ERROR_ARG_INVALID; - - for (it = node; it->parent != NULL; it = it->parent) { - if (it->parent == node) - return SQFS_ERROR_LINK_LOOP; - - /* non-root nodes must have a valid name */ - clen = strlen((const char *)it->name); - - if (clen == 0) - return SQFS_ERROR_CORRUPTED; - - if (strchr((const char *)it->name, '/') != NULL) - return SQFS_ERROR_CORRUPTED; - - if (it->name[0] == '.') { - if (clen == 1 || (clen == 2 && it->name[1] == '.')) - return SQFS_ERROR_CORRUPTED; - } - - /* compute total path length */ - if (SZ_ADD_OV(clen, 1, &clen)) - return SQFS_ERROR_OVERFLOW; - - if (SZ_ADD_OV(len, clen, &len)) - return SQFS_ERROR_OVERFLOW; - } - - /* root node must not have a name */ - if (it->name[0] != '\0') - return SQFS_ERROR_ARG_INVALID; - - /* generate the path */ - if (node->parent == NULL) { - str = strdup("/"); - if (str == NULL) - return SQFS_ERROR_ALLOC; - } else { - if (SZ_ADD_OV(len, 1, &len)) - return SQFS_ERROR_OVERFLOW; - - str = malloc(len); - if (str == NULL) - return SQFS_ERROR_ALLOC; - - ptr = str + len - 1; - *ptr = '\0'; - - for (it = node; it->parent != NULL; it = it->parent) { - len = strlen((const char *)it->name); - ptr -= len; - - memcpy(ptr, (const char *)it->name, len); - *(--ptr) = '/'; - } - } - - *out = str; - return 0; -} |