mirror of https://github.com/moparisthebest/curl
Added support for libssh SSH SCP back-end
libssh is an alternative library to libssh2. https://www.libssh.org/ That patch set also introduces support for ECDSA ed25519 keys, as well as gssapi authentication. Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>master
Nikos Mavrogiannopoulos
6 years ago
committed by
Daniel Stenberg
parent
3973ee6a65
commit
c92d2e14cf
@ -0,0 +1,179 @@
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/***************************************************************************
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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) 1998 - 2017, 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.haxx.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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***************************************************************************/
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#include "curl_setup.h"
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#include <curl/curl.h>
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#include "curl_memory.h"
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#include "curl_path.h"
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#include "escape.h"
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#include "memdebug.h"
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/* figure out the path to work with in this particular request */
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CURLcode Curl_getworkingpath(struct connectdata *conn,
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char *homedir, /* when SFTP is used */
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char **path) /* returns the allocated
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real path to work with */
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{
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struct Curl_easy *data = conn->data;
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char *real_path = NULL;
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char *working_path;
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size_t working_path_len;
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CURLcode result =
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Curl_urldecode(data, data->state.path, 0, &working_path,
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&working_path_len, FALSE);
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if(result)
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return result;
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/* Check for /~/, indicating relative to the user's home directory */
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if(conn->handler->protocol & CURLPROTO_SCP) {
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real_path = malloc(working_path_len + 1);
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if(real_path == NULL) {
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free(working_path);
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return CURLE_OUT_OF_MEMORY;
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}
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if((working_path_len > 3) && (!memcmp(working_path, "/~/", 3)))
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/* It is referenced to the home directory, so strip the leading '/~/' */
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memcpy(real_path, working_path + 3, 4 + working_path_len-3);
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else
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memcpy(real_path, working_path, 1 + working_path_len);
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}
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else if(conn->handler->protocol & CURLPROTO_SFTP) {
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if((working_path_len > 1) && (working_path[1] == '~')) {
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size_t homelen = strlen(homedir);
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real_path = malloc(homelen + working_path_len + 1);
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if(real_path == NULL) {
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free(working_path);
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return CURLE_OUT_OF_MEMORY;
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}
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/* It is referenced to the home directory, so strip the
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leading '/' */
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memcpy(real_path, homedir, homelen);
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real_path[homelen] = '/';
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real_path[homelen + 1] = '\0';
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if(working_path_len > 3) {
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memcpy(real_path + homelen + 1, working_path + 3,
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1 + working_path_len -3);
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}
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}
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else {
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real_path = malloc(working_path_len + 1);
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if(real_path == NULL) {
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free(working_path);
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return CURLE_OUT_OF_MEMORY;
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}
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memcpy(real_path, working_path, 1 + working_path_len);
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}
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}
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free(working_path);
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/* store the pointer for the caller to receive */
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*path = real_path;
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return CURLE_OK;
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}
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/* The get_pathname() function is being borrowed from OpenSSH sftp.c
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version 4.6p1. */
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/*
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* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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CURLcode Curl_get_pathname(const char **cpp, char **path)
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{
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const char *cp = *cpp, *end;
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char quot;
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unsigned int i, j;
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static const char WHITESPACE[] = " \t\r\n";
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cp += strspn(cp, WHITESPACE);
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if(!*cp) {
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*cpp = cp;
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*path = NULL;
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return CURLE_QUOTE_ERROR;
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}
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*path = malloc(strlen(cp) + 1);
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if(*path == NULL)
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return CURLE_OUT_OF_MEMORY;
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/* Check for quoted filenames */
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if(*cp == '\"' || *cp == '\'') {
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quot = *cp++;
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/* Search for terminating quote, unescape some chars */
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for(i = j = 0; i <= strlen(cp); i++) {
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if(cp[i] == quot) { /* Found quote */
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i++;
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(*path)[j] = '\0';
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break;
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}
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if(cp[i] == '\0') { /* End of string */
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/*error("Unterminated quote");*/
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goto fail;
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}
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if(cp[i] == '\\') { /* Escaped characters */
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i++;
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if(cp[i] != '\'' && cp[i] != '\"' &&
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cp[i] != '\\') {
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/*error("Bad escaped character '\\%c'",
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cp[i]);*/
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goto fail;
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}
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}
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(*path)[j++] = cp[i];
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}
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if(j == 0) {
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/*error("Empty quotes");*/
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goto fail;
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}
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*cpp = cp + i + strspn(cp + i, WHITESPACE);
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}
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else {
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/* Read to end of filename */
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end = strpbrk(cp, WHITESPACE);
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if(end == NULL)
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end = strchr(cp, '\0');
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*cpp = end + strspn(end, WHITESPACE);
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memcpy(*path, cp, end - cp);
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(*path)[end - cp] = '\0';
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}
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return CURLE_OK;
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fail:
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Curl_safefree(*path);
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return CURLE_QUOTE_ERROR;
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}
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@ -0,0 +1,45 @@
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/***************************************************************************
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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) 1998 - 2017, 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.haxx.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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***************************************************************************/
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#include "curl_setup.h"
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#include <curl/curl.h>
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#include "urldata.h"
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#ifdef WIN32
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# undef PATH_MAX
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# define PATH_MAX MAX_PATH
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# ifndef R_OK
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# define R_OK 4
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# endif
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#endif
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#ifndef PATH_MAX
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#define PATH_MAX 1024 /* just an extra precaution since there are systems that
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have their definition hidden well */
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#endif
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CURLcode Curl_getworkingpath(struct connectdata *conn,
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char *homedir,
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char **path);
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CURLcode
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Curl_get_pathname(const char **cpp, char **path);
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