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-rw-r--r--minzip/DirUtil.c280
1 files changed, 0 insertions, 280 deletions
diff --git a/minzip/DirUtil.c b/minzip/DirUtil.c
deleted file mode 100644
index 20c89cd..0000000
--- a/minzip/DirUtil.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-#include <dirent.h>
-#include <limits.h>
-
-#include "DirUtil.h"
-
-typedef enum { DMISSING, DDIR, DILLEGAL } DirStatus;
-
-static DirStatus
-getPathDirStatus(const char *path)
-{
- struct stat st;
- int err;
-
- err = stat(path, &st);
- if (err == 0) {
- /* Something's there; make sure it's a directory.
- */
- if (S_ISDIR(st.st_mode)) {
- return DDIR;
- }
- errno = ENOTDIR;
- return DILLEGAL;
- } else if (errno != ENOENT) {
- /* Something went wrong, or something in the path
- * is bad. Can't do anything in this situation.
- */
- return DILLEGAL;
- }
- return DMISSING;
-}
-
-int
-dirCreateHierarchy(const char *path, int mode,
- const struct utimbuf *timestamp, bool stripFileName)
-{
- DirStatus ds;
-
- /* Check for an empty string before we bother
- * making any syscalls.
- */
- if (path[0] == '\0') {
- errno = ENOENT;
- return -1;
- }
-
- /* Allocate a path that we can modify; stick a slash on
- * the end to make things easier.
- */
- size_t pathLen = strlen(path);
- char *cpath = (char *)malloc(pathLen + 2);
- if (cpath == NULL) {
- errno = ENOMEM;
- return -1;
- }
- memcpy(cpath, path, pathLen);
- if (stripFileName) {
- /* Strip everything after the last slash.
- */
- char *c = cpath + pathLen - 1;
- while (c != cpath && *c != '/') {
- c--;
- }
- if (c == cpath) {
-//xxx test this path
- /* No directory component. Act like the path was empty.
- */
- errno = ENOENT;
- free(cpath);
- return -1;
- }
- c[1] = '\0'; // Terminate after the slash we found.
- } else {
- /* Make sure that the path ends in a slash.
- */
- cpath[pathLen] = '/';
- cpath[pathLen + 1] = '\0';
- }
-
- /* See if it already exists.
- */
- ds = getPathDirStatus(cpath);
- if (ds == DDIR) {
- return 0;
- } else if (ds == DILLEGAL) {
- return -1;
- }
-
- /* Walk up the path from the root and make each level.
- * If a directory already exists, no big deal.
- */
- char *p = cpath;
- while (*p != '\0') {
- /* Skip any slashes, watching out for the end of the string.
- */
- while (*p != '\0' && *p == '/') {
- p++;
- }
- if (*p == '\0') {
- break;
- }
-
- /* Find the end of the next path component.
- * We know that we'll see a slash before the NUL,
- * because we added it, above.
- */
- while (*p != '/') {
- p++;
- }
- *p = '\0';
-
- /* Check this part of the path and make a new directory
- * if necessary.
- */
- ds = getPathDirStatus(cpath);
- if (ds == DILLEGAL) {
- /* Could happen if some other process/thread is
- * messing with the filesystem.
- */
- free(cpath);
- return -1;
- } else if (ds == DMISSING) {
- int err;
-
- err = mkdir(cpath, mode);
- if (err != 0) {
- free(cpath);
- return -1;
- }
- if (timestamp != NULL && utime(cpath, timestamp)) {
- free(cpath);
- return -1;
- }
- }
- // else, this directory already exists.
-
- /* Repair the path and continue.
- */
- *p = '/';
- }
- free(cpath);
-
- return 0;
-}
-
-int
-dirUnlinkHierarchy(const char *path)
-{
- struct stat st;
- DIR *dir;
- struct dirent *de;
- int fail = 0;
-
- /* is it a file or directory? */
- if (lstat(path, &st) < 0) {
- return -1;
- }
-
- /* a file, so unlink it */
- if (!S_ISDIR(st.st_mode)) {
- return unlink(path);
- }
-
- /* a directory, so open handle */
- dir = opendir(path);
- if (dir == NULL) {
- return -1;
- }
-
- /* recurse over components */
- errno = 0;
- while ((de = readdir(dir)) != NULL) {
-//TODO: don't blow the stack
- char dn[PATH_MAX];
- if (!strcmp(de->d_name, "..") || !strcmp(de->d_name, ".")) {
- continue;
- }
- snprintf(dn, sizeof(dn), "%s/%s", path, de->d_name);
- if (dirUnlinkHierarchy(dn) < 0) {
- fail = 1;
- break;
- }
- errno = 0;
- }
- /* in case readdir or unlink_recursive failed */
- if (fail || errno < 0) {
- int save = errno;
- closedir(dir);
- errno = save;
- return -1;
- }
-
- /* close directory handle */
- if (closedir(dir) < 0) {
- return -1;
- }
-
- /* delete target directory */
- return rmdir(path);
-}
-
-int
-dirSetHierarchyPermissions(const char *path,
- int uid, int gid, int dirMode, int fileMode)
-{
- struct stat st;
- if (lstat(path, &st)) {
- return -1;
- }
-
- /* ignore symlinks */
- if (S_ISLNK(st.st_mode)) {
- return 0;
- }
-
- /* directories and files get different permissions */
- if (chown(path, uid, gid) ||
- chmod(path, S_ISDIR(st.st_mode) ? dirMode : fileMode)) {
- return -1;
- }
-
- /* recurse over directory components */
- if (S_ISDIR(st.st_mode)) {
- DIR *dir = opendir(path);
- if (dir == NULL) {
- return -1;
- }
-
- errno = 0;
- const struct dirent *de;
- while (errno == 0 && (de = readdir(dir)) != NULL) {
- if (!strcmp(de->d_name, "..") || !strcmp(de->d_name, ".")) {
- continue;
- }
-
- char dn[PATH_MAX];
- snprintf(dn, sizeof(dn), "%s/%s", path, de->d_name);
- if (!dirSetHierarchyPermissions(dn, uid, gid, dirMode, fileMode)) {
- errno = 0;
- } else if (errno == 0) {
- errno = -1;
- }
- }
-
- if (errno != 0) {
- int save = errno;
- closedir(dir);
- errno = save;
- return -1;
- }
-
- if (closedir(dir)) {
- return -1;
- }
- }
-
- return 0;
-}
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