diff options
Diffstat (limited to 'src/dirent.c')
-rw-r--r-- | src/dirent.c | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/src/dirent.c b/src/dirent.c deleted file mode 100644 index 575e834..0000000 --- a/src/dirent.c +++ /dev/null @@ -1,114 +0,0 @@ -/* - * Copyright (C) 2023 Patrick McDermott - * - * This file is part of opkg-opk. - * - * opkg-opk 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 3 of the License, or - * (at your option) any later version. - * - * opkg-opk 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 opkg-opk. If not, see <https://www.gnu.org/licenses/>. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "defs.h" -#include "dirent.h" - -static int -_opkg_opk_dirent_name_prefix(struct opkg_opk_dirent *dirent, int is_dir, - char **name_buf, size_t *name_buf_len, - char **pref_buf, size_t *pref_buf_len, - size_t *name_len, size_t *pref_len) -{ - size_t len; - char **buf; - int sep; - - len = strlen(dirent->name); - if ((*name_len > 0 || is_dir) && *name_len + len + 1 <= *name_buf_len) { - /* Space available in name buffer. Not last node, or is a - * directory, so append separator. */ - buf = name_buf; - *name_len += len + 1; - sep = 1; - } else if (*name_len == 0 && *name_len + len <= *name_buf_len) { - /* Space available in name buffer. Last node (first in - * recursion), so don't append separator. */ - buf = name_buf; - *name_len += len; - sep = 0; - } else if (*pref_len > 0 && *pref_len + len + 1 <= *pref_buf_len) { - /* Space available in prefix buffer. Not last node, so append - * separator. */ - buf = pref_buf; - *pref_len += len + 1; - sep = 1; - } else if (*pref_len == 0 && *pref_len + len <= *pref_buf_len) { - /* Space available in prefix buffer. Last node (first in - * recursion), so don't append separator. */ - buf = pref_buf; - *pref_len += len; - sep = 0; - } else { - /* Both buffers full. */ - return OPKG_OPK_ERROR; - } - if (*buf == NULL) { - /* Caller provided a NULL buffer pointer. */ - return OPKG_OPK_ERROR; - } - - /* Recurse. */ - if (dirent->parent != NULL && - _opkg_opk_dirent_name_prefix(dirent->parent, is_dir, - name_buf, name_buf_len, pref_buf, pref_buf_len, - name_len, pref_len) == OPKG_OPK_ERROR) { - return OPKG_OPK_ERROR; - } - - /* Copy node name and possibly separator suffix. */ - memcpy(*buf, dirent->name, len); - *buf += len; - if (sep == 1) { - **buf = '/'; - *buf += 1; - } - - return OPKG_OPK_OK; -} - -int -opkg_opk_dirent_name_prefix(struct opkg_opk_dirent *dirent, int is_dir, - char *name_buf, size_t name_buf_len, - char *pref_buf, size_t pref_buf_len) -{ - size_t name_len = 0; - size_t pref_len = 0; - char *name = name_buf; - char *pref = pref_buf; - - /* NUL bytes */ - --name_buf_len; - --pref_buf_len; - - if (_opkg_opk_dirent_name_prefix(dirent, is_dir, - &name_buf, &name_buf_len, - &pref_buf, &pref_buf_len, - &name_len, &pref_len) == OPKG_OPK_ERROR) { - return OPKG_OPK_ERROR; - } - - name[name_len] = '\0'; - pref[pref_len] = '\0'; - - return OPKG_OPK_OK; -} |