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3ea0f71ffa
It has been used unconditionally in `src` and `tests` since at least
2011-09-19 via fdecb56cbf. There are
earlier unguarded references in `tests`.
Also de-duplicate to include it just once.
Ref: https://github.com/curl/curl/pull/17717#issuecomment-2996631026
Closes #17724
142 lines
4.2 KiB
C
142 lines
4.2 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "tool_setup.h"
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#if defined(_WIN32) && !defined(UNDER_CE)
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# include <direct.h>
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#endif
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#include "tool_dirhie.h"
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#include "tool_msgs.h"
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#include "memdebug.h" /* keep this as LAST include */
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#if defined(_WIN32) || (defined(MSDOS) && !defined(__DJGPP__))
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# define mkdir(x,y) (mkdir)((x))
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# ifndef F_OK
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# define F_OK 0
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# endif
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#endif
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static void show_dir_errno(struct GlobalConfig *global, const char *name)
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{
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switch(errno) {
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#ifdef EACCES
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/* !checksrc! disable ERRNOVAR 1 */
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case EACCES:
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errorf(global, "You do not have permission to create %s", name);
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break;
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#endif
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#ifdef ENAMETOOLONG
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case ENAMETOOLONG:
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errorf(global, "The directory name %s is too long", name);
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break;
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#endif
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#ifdef EROFS
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case EROFS:
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errorf(global, "%s resides on a read-only file system", name);
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break;
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#endif
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#ifdef ENOSPC
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case ENOSPC:
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errorf(global, "No space left on the file system that will "
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"contain the directory %s", name);
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break;
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#endif
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#ifdef EDQUOT
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case EDQUOT:
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errorf(global, "Cannot create directory %s because you "
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"exceeded your quota", name);
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break;
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#endif
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default:
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errorf(global, "Error creating directory %s", name);
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break;
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}
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}
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/*
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* Create the needed directory hierarchy recursively in order to save
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* multi-GETs in file output, ie:
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* curl "http://example.org/dir[1-5]/file[1-5].txt" -o "dir#1/file#2.txt"
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* should create all the dir* automagically
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*/
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#if defined(_WIN32) || defined(__DJGPP__)
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/* systems that may use either or when specifying a path */
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#define PATH_DELIMITERS "\\/"
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#else
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#define PATH_DELIMITERS DIR_CHAR
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#endif
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CURLcode create_dir_hierarchy(const char *outfile, struct GlobalConfig *global)
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{
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CURLcode result = CURLE_OK;
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size_t outlen = strlen(outfile);
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struct dynbuf dirbuf;
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curlx_dyn_init(&dirbuf, outlen + 1);
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while(*outfile) {
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bool skip = FALSE;
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size_t seplen = strspn(outfile, PATH_DELIMITERS);
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size_t len = strcspn(&outfile[seplen], PATH_DELIMITERS);
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/* the last path component is the file and it ends with a null byte */
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if(!outfile[len + seplen])
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break;
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#if defined(_WIN32) || defined(MSDOS)
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if(!curlx_dyn_len(&dirbuf)) {
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/* Skip creating a drive's current directory. It may seem as though that
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would harmlessly fail but it could be a corner case if X: did not
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exist, since we would be creating it erroneously. eg if outfile is
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X:\foo\bar\filename then do not mkdir X: This logic takes into
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account unsupported drives !:, 1:, etc. */
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if(len > 1 && (outfile[1]==':'))
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skip = TRUE;
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}
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#endif
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/* insert the leading separators (possibly plural) plus the following
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directory name */
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result = curlx_dyn_addn(&dirbuf, outfile, seplen + len);
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if(result)
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return result;
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/* Create directory. Ignore access denied error to allow traversal. */
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/* !checksrc! disable ERRNOVAR 1 */
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if(!skip && (-1 == mkdir(curlx_dyn_ptr(&dirbuf), (mode_t)0000750)) &&
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(errno != EACCES) && (errno != EEXIST)) {
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show_dir_errno(global, curlx_dyn_ptr(&dirbuf));
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result = CURLE_WRITE_ERROR;
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break; /* get out of loop */
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}
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outfile += len + seplen;
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}
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curlx_dyn_free(&dirbuf);
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return result;
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}
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