mirror of
https://github.com/moparisthebest/curl
synced 2024-11-05 00:55:04 -05:00
5fc28510a4
This limits all accepted input strings passed to libcurl to be less than CURL_MAX_INPUT_LENGTH (8000000) bytes, for these API calls: curl_easy_setopt() and curl_url_set(). The 8000000 number is arbitrary picked and is meant to detect mistakes or abuse, not to limit actual practical use cases. By limiting the acceptable string lengths we also reduce the risk of integer overflows all over. NOTE: This does not apply to `CURLOPT_POSTFIELDS`. Test 1559 verifies. Closes #3805
79 lines
2.3 KiB
C
79 lines
2.3 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) 1998 - 2019, 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 "test.h"
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#include "testutil.h"
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#include "warnless.h"
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#include "memdebug.h"
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#define EXCESSIVE 10*1000*1000
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int test(char *URL)
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{
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CURLcode res = 0;
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CURL *curl = NULL;
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char *longurl = malloc(EXCESSIVE);
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CURLU *u;
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(void)URL;
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memset(longurl, 'a', EXCESSIVE);
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longurl[EXCESSIVE-1] = 0;
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global_init(CURL_GLOBAL_ALL);
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easy_init(curl);
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res = curl_easy_setopt(curl, CURLOPT_URL, longurl);
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printf("CURLOPT_URL %d bytes URL == %d\n",
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EXCESSIVE, (int)res);
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res = curl_easy_setopt(curl, CURLOPT_POSTFIELDS, longurl);
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printf("CURLOPT_POSTFIELDS %d bytes data == %d\n",
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EXCESSIVE, (int)res);
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u = curl_url();
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if(u) {
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CURLUcode uc = curl_url_set(u, CURLUPART_URL, longurl, 0);
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printf("CURLUPART_URL %d bytes URL == %d\n",
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EXCESSIVE, (int)uc);
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uc = curl_url_set(u, CURLUPART_SCHEME, longurl, CURLU_NON_SUPPORT_SCHEME);
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printf("CURLUPART_SCHEME %d bytes scheme == %d\n",
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EXCESSIVE, (int)uc);
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uc = curl_url_set(u, CURLUPART_USER, longurl, 0);
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printf("CURLUPART_USER %d bytes user == %d\n",
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EXCESSIVE, (int)uc);
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curl_url_cleanup(u);
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}
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free(longurl);
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curl_easy_cleanup(curl);
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curl_global_cleanup();
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return 0;
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test_cleanup:
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curl_easy_cleanup(curl);
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curl_global_cleanup();
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return res; /* return the final return code */
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}
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