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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "tool_setup.h"
#if defined(_WIN32) && !defined(UNDER_CE)
# include <direct.h>
#endif
#include "tool_dirhie.h"
#include "tool_msgs.h"
#include "memdebug.h" /* keep this as LAST include */
#if defined(_WIN32) || (defined(MSDOS) && !defined(__DJGPP__))
# define mkdir(x,y) (mkdir)((x))
# ifndef F_OK
# define F_OK 0
# endif
#endif
static void show_dir_errno(const char *name)
{
switch(errno) {
#ifdef EACCES
/* !checksrc! disable ERRNOVAR 1 */
case EACCES:
errorf("You do not have permission to create %s", name);
break;
#endif
#ifdef ENAMETOOLONG
case ENAMETOOLONG:
errorf("The directory name %s is too long", name);
break;
#endif
#ifdef EROFS
case EROFS:
errorf("%s resides on a read-only file system", name);
break;
#endif
#ifdef ENOSPC
case ENOSPC:
errorf("No space left on the file system that will "
"contain the directory %s", name);
break;
#endif
#ifdef EDQUOT
case EDQUOT:
errorf("Cannot create directory %s because you "
"exceeded your quota", name);
break;
#endif
default:
errorf("Error creating directory %s", name);
break;
}
}
/*
* Create the needed directory hierarchy recursively in order to save
* multi-GETs in file output, ie:
* curl "http://example.org/dir[1-5]/file[1-5].txt" -o "dir#1/file#2.txt"
* should create all the dir* automagically
*/
#if defined(_WIN32) || defined(__DJGPP__)
/* systems that may use either or when specifying a path */
#define PATH_DELIMITERS "\\/"
#else
#define PATH_DELIMITERS DIR_CHAR
#endif
CURLcode create_dir_hierarchy(const char *outfile)
{
CURLcode result = CURLE_OK;
size_t outlen = strlen(outfile);
struct dynbuf dirbuf;
curlx_dyn_init(&dirbuf, outlen + 1);
while(*outfile) {
bool skip = FALSE;
size_t seplen = strspn(outfile, PATH_DELIMITERS);
size_t len = strcspn(&outfile[seplen], PATH_DELIMITERS);
/* the last path component is the file and it ends with a null byte */
if(!outfile[len + seplen])
break;
#if defined(_WIN32) || defined(MSDOS)
if(!curlx_dyn_len(&dirbuf)) {
/* Skip creating a drive's current directory. It may seem as though that
would harmlessly fail but it could be a corner case if X: did not
exist, since we would be creating it erroneously. eg if outfile is
X:\foo\bar\filename then do not mkdir X: This logic takes into
account unsupported drives !:, 1:, etc. */
if(len > 1 && (outfile[1]==':'))
skip = TRUE;
}
#endif
/* insert the leading separators (possibly plural) plus the following
directory name */
result = curlx_dyn_addn(&dirbuf, outfile, seplen + len);
if(result)
return result;
/* Create directory. Ignore access denied error to allow traversal. */
/* !checksrc! disable ERRNOVAR 1 */
if(!skip && (mkdir(curlx_dyn_ptr(&dirbuf), (mode_t)0000750) == -1) &&
(errno != EACCES) && (errno != EEXIST)) {
show_dir_errno(curlx_dyn_ptr(&dirbuf));
result = CURLE_WRITE_ERROR;
break; /* get out of loop */
}
outfile += len + seplen;
}
curlx_dyn_free(&dirbuf);
return result;
}