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curl/lib/curl_sasl.c
Steve Holme 54d484e136 sasl: Moved login authentication message creation from smtp.c
Moved the login message creation from smtp.c into the sasl module
to allow for use by other modules such as pop3.
2012-05-31 23:11:54 +01:00

116 lines
3.5 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012, 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 http://curl.haxx.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.
*
* RFC4616 PLAIN authentication
*
***************************************************************************/
#include "setup.h"
#include <curl/curl.h>
#include "urldata.h"
#include "curl_base64.h"
#include "curl_sasl.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Curl_sasl_create_plain_message()
*
* This is used to generate an already encoded plain message ready
* for sending to the recipient.
*
* Parameters:
*
* data [in] - The session handle.
* userp [in] - The user name.
* passdwp [in] - The user's password.
* outptr [in/out] - The address where a pointer to newly allocated memory
* holding the result will be stored upon completion.
* outlen [out] - The length of the output message.
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_sasl_create_plain_message(struct SessionHandle *data,
const char* userp,
const char* passwdp,
char **outptr, size_t *outlen)
{
char plainauth[2 * MAX_CURL_USER_LENGTH + MAX_CURL_PASSWORD_LENGTH];
size_t ulen;
size_t plen;
ulen = strlen(userp);
plen = strlen(passwdp);
if(2 * ulen + plen + 2 > sizeof(plainauth)) {
*outlen = 0;
*outptr = NULL;
return CURLE_OUT_OF_MEMORY; /* plainauth too small */
}
memcpy(plainauth, userp, ulen);
plainauth[ulen] = '\0';
memcpy(plainauth + ulen + 1, userp, ulen);
plainauth[2 * ulen + 1] = '\0';
memcpy(plainauth + 2 * ulen + 2, passwdp, plen);
return Curl_base64_encode(data, plainauth, 2 * ulen + plen + 2, outptr,
outlen);
}
/*
* Curl_sasl_create_login_message()
*
* This is used to generate an already encoded login message containing the
* user name or password ready for sending to the recipient.
*
* Parameters:
*
* data [in] - The session handle.
* userp [in] - The user name.
* outptr [in/out] - The address where a pointer to newly allocated memory
* holding the result will be stored upon completion.
* outlen [out] - The length of the output message.
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_sasl_create_login_message(struct SessionHandle *data,
const char* valuep, char **outptr,
size_t *outlen)
{
size_t vlen = strlen(valuep);
if(!vlen) {
*outptr = strdup("=");
if(*outptr) {
*outlen = (size_t) 1;
return CURLE_OK;
}
*outlen = 0;
return CURLE_OUT_OF_MEMORY;
}
return Curl_base64_encode(data, valuep, vlen, outptr, outlen);
}