xf.li | 6c8fc1e | 2023-08-12 00:11:09 -0700 | [diff] [blame^] | 1 | /*************************************************************************** |
| 2 | * _ _ ____ _ |
| 3 | * Project ___| | | | _ \| | |
| 4 | * / __| | | | |_) | | |
| 5 | * | (__| |_| | _ <| |___ |
| 6 | * \___|\___/|_| \_\_____| |
| 7 | * |
| 8 | * Copyright (C) 1998 - 2022, 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 | * SPDX-License-Identifier: curl |
| 22 | * |
| 23 | ***************************************************************************/ |
| 24 | #include "curlcheck.h" |
| 25 | |
| 26 | #include "urldata.h" |
| 27 | #include "sendf.h" |
| 28 | |
| 29 | /* |
| 30 | * This test hardcodes the knowledge of the buffer size which is internal to |
| 31 | * Curl_infof(). If that buffer is changed in size, this tests needs to be |
| 32 | * updated to still be valid. |
| 33 | */ |
| 34 | |
| 35 | static struct Curl_easy *data; |
| 36 | |
| 37 | static char input[4096]; |
| 38 | static char result[4096]; |
| 39 | |
| 40 | int debugf_cb(CURL *handle, curl_infotype type, char *buf, size_t size, |
| 41 | void *userptr); |
| 42 | |
| 43 | /* |
| 44 | * This debugf callback is simply dumping the string into the static buffer |
| 45 | * for the unit test to inspect. Since we know that we're only dealing with |
| 46 | * text we can afford the luxury of skipping the type check here. |
| 47 | */ |
| 48 | int |
| 49 | debugf_cb(CURL *handle, curl_infotype type, char *buf, size_t size, |
| 50 | void *userptr) |
| 51 | { |
| 52 | (void)handle; |
| 53 | (void)type; |
| 54 | (void)userptr; |
| 55 | |
| 56 | memset(result, '\0', sizeof(result)); |
| 57 | memcpy(result, buf, size); |
| 58 | return 0; |
| 59 | } |
| 60 | |
| 61 | static CURLcode |
| 62 | unit_setup(void) |
| 63 | { |
| 64 | CURLcode res = CURLE_OK; |
| 65 | |
| 66 | global_init(CURL_GLOBAL_ALL); |
| 67 | data = curl_easy_init(); |
| 68 | if(!data) { |
| 69 | curl_global_cleanup(); |
| 70 | return CURLE_OUT_OF_MEMORY; |
| 71 | } |
| 72 | curl_easy_setopt(data, CURLOPT_DEBUGFUNCTION, debugf_cb); |
| 73 | curl_easy_setopt(data, CURLOPT_VERBOSE, 1L); |
| 74 | return res; |
| 75 | } |
| 76 | |
| 77 | static void |
| 78 | unit_stop(void) |
| 79 | { |
| 80 | curl_easy_cleanup(data); |
| 81 | curl_global_cleanup(); |
| 82 | } |
| 83 | |
| 84 | static int verify(const char *info, const char *two) |
| 85 | { |
| 86 | /* the 'info' one has a newline appended */ |
| 87 | char *nl = strchr(info, '\n'); |
| 88 | if(!nl) |
| 89 | return 1; /* nope */ |
| 90 | return strncmp(info, two, nl - info); |
| 91 | } |
| 92 | |
| 93 | UNITTEST_START |
| 94 | |
| 95 | /* Injecting a simple short string via a format */ |
| 96 | msnprintf(input, sizeof(input), "Simple Test"); |
| 97 | Curl_infof(data, "%s", input); |
| 98 | fail_unless(verify(result, input) == 0, "Simple string test"); |
| 99 | |
| 100 | /* Injecting a few different variables with a format */ |
| 101 | Curl_infof(data, "%s %u testing %lu", input, 42, 43L); |
| 102 | fail_unless(verify(result, "Simple Test 42 testing 43\n") == 0, |
| 103 | "Format string"); |
| 104 | |
| 105 | /* Variations of empty strings */ |
| 106 | Curl_infof(data, ""); |
| 107 | fail_unless(strlen(result) == 1, "Empty string"); |
| 108 | Curl_infof(data, "%s", NULL); |
| 109 | fail_unless(verify(result, "(nil)") == 0, "Passing NULL as string"); |
| 110 | |
| 111 | /* A string just long enough to not be truncated */ |
| 112 | memset(input, '\0', sizeof(input)); |
| 113 | memset(input, 'A', 2047); |
| 114 | Curl_infof(data, "%s", input); |
| 115 | fail_unless(strlen(result) == 2048, "No truncation of infof input"); |
| 116 | fail_unless(verify(result, input) == 0, "No truncation of infof input"); |
| 117 | fail_unless(result[sizeof(result) - 1] == '\0', |
| 118 | "No truncation of infof input"); |
| 119 | |
| 120 | /* Just over the limit for truncation without newline */ |
| 121 | memset(input + 2047, 'A', 4); |
| 122 | Curl_infof(data, "%s", input); |
| 123 | fail_unless(strlen(result) == 2048, "Truncation of infof input 1"); |
| 124 | fail_unless(result[sizeof(result) - 1] == '\0', "Truncation of infof input 1"); |
| 125 | |
| 126 | /* Just over the limit for truncation with newline */ |
| 127 | memset(input + 2047, 'A', 4); |
| 128 | memset(input + 2047 + 4, '\n', 1); |
| 129 | Curl_infof(data, "%s", input); |
| 130 | fail_unless(strlen(result) == 2048, "Truncation of infof input 2"); |
| 131 | fail_unless(result[sizeof(result) - 1] == '\0', "Truncation of infof input 2"); |
| 132 | |
| 133 | /* Way over the limit for truncation with newline */ |
| 134 | memset(input, '\0', sizeof(input)); |
| 135 | memset(input, 'A', sizeof(input) - 1); |
| 136 | Curl_infof(data, "%s", input); |
| 137 | fail_unless(strlen(result) == 2048, "Truncation of infof input 3"); |
| 138 | fail_unless(result[sizeof(result) - 1] == '\0', "Truncation of infof input 3"); |
| 139 | |
| 140 | |
| 141 | UNITTEST_STOP |