1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22 #include "test.h"
23
24 #include "testutil.h"
25 #include "warnless.h"
26 #include "memdebug.h"
27
28 /* The maximum string length limit (CURL_MAX_INPUT_LENGTH) is an internal
29 define not publicly exposed so we set our own */
30 #define MAX_INPUT_LENGTH 8000000
31
32 static char buffer[MAX_INPUT_LENGTH + 2];
33
test(char * URL)34 int test(char *URL)
35 {
36 const struct curl_easyoption *o;
37 CURL *easy;
38 int error = 0;
39 (void)URL;
40
41 curl_global_init(CURL_GLOBAL_ALL);
42 easy = curl_easy_init();
43 if(!easy) {
44 curl_global_cleanup();
45 return 1;
46 }
47
48 /* make it a zero terminated C string with just As */
49 memset(buffer, 'A', MAX_INPUT_LENGTH + 1);
50 buffer[MAX_INPUT_LENGTH + 1] = 0;
51
52 printf("string length: %d\n", (int)strlen(buffer));
53
54 for(o = curl_easy_option_next(NULL);
55 o;
56 o = curl_easy_option_next(o)) {
57 if(o->type == CURLOT_STRING) {
58 CURLcode result;
59 /*
60 * Whitelist string options that are safe for abuse
61 */
62 switch(o->id) {
63 case CURLOPT_PROXY_TLSAUTH_TYPE:
64 case CURLOPT_TLSAUTH_TYPE:
65 continue;
66 default:
67 /* check this */
68 break;
69 }
70
71 /* This is a string. Make sure that passing in a string longer
72 CURL_MAX_INPUT_LENGTH returns an error */
73 result = curl_easy_setopt(easy, o->id, buffer);
74 switch(result) {
75 case CURLE_BAD_FUNCTION_ARGUMENT: /* the most normal */
76 case CURLE_UNKNOWN_OPTION: /* left out from the build */
77 case CURLE_NOT_BUILT_IN: /* not supported */
78 break;
79 default:
80 /* all other return codes are unexpected */
81 fprintf(stderr, "curl_easy_setopt(%s...) returned %d\n",
82 o->name, (int)result);
83 error++;
84 break;
85 }
86 }
87 }
88 curl_easy_cleanup(easy);
89 curl_global_cleanup();
90 return error;
91 }
92