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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Chunk I/O
* =========
* Copyright 2018 Eduardo Silva <eduardo@monkey.io>
*
* 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.
*/
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <chunkio/chunkio_compat.h>
#ifdef _WIN32
#include <Shlobj.h>
#endif
/* Check if a path is a directory */
int cio_os_isdir(const char *dir)
{
int ret;
struct stat st;
ret = stat(dir, &st);
if (ret == -1) {
return -1;
}
if (st.st_mode & S_IFDIR) {
return 0;
}
return -1;
}
/* Create directory */
int cio_os_mkpath(const char *dir, mode_t mode)
{
struct stat st;
#ifdef _WIN32
char path[MAX_PATH];
#else
# ifdef __APPLE__
char *parent_dir = NULL;
char *path = NULL;
# endif
char *dup_dir;
#endif
if (!dir) {
errno = EINVAL;
return 1;
}
if (strlen(dir) == 0) {
errno = EINVAL;
return 1;
}
if (!stat(dir, &st)) {
return 0;
}
#ifdef _WIN32
(void) mode;
if (_fullpath(path, dir, MAX_PATH) == NULL) {
return 1;
}
if (SHCreateDirectoryExA(NULL, path, NULL) != ERROR_SUCCESS) {
return 1;
}
return 0;
#elif __APPLE__
dup_dir = strdup(dir);
if (!dup_dir) {
return -1;
}
/* macOS's dirname(3) should return current directory when slash
* charachter is not included in passed string.
* And note that macOS's dirname(3) does not modify passed string.
*/
parent_dir = dirname(dup_dir);
if (stat(parent_dir, &st) == 0 && strncmp(parent_dir, ".", 1)) {
if (S_ISDIR (st.st_mode)) {
mkdir(dup_dir, mode);
free(dup_dir);
return 0;
}
}
/* Create directories straightforward except for the last one hierarchy. */
for (path = strchr(dup_dir + 1, '/'); path; path = strchr(path + 1, '/')) {
*path = '\0';
if (mkdir(dup_dir, mode) == -1) {
if (errno != EEXIST) {
*path = '/';
return -1;
}
}
*path = '/';
}
free(dup_dir);
return mkdir(dir, mode);
#else
dup_dir = strdup(dir);
if (!dup_dir) {
return 1;
}
cio_os_mkpath(dirname(dup_dir), mode);
free(dup_dir);
return mkdir(dir, mode);
#endif
}
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