mirror of
https://github.com/moparisthebest/curl
synced 2024-11-17 23:15:08 -05:00
dcd6f81025
The function does not return the same value as snprintf() normally does, so readers may be mislead into thinking the code works differently than it actually does. A different function name makes this easier to detect. Reported-by: Tomas Hoger Assisted-by: Daniel Gustafsson Fixes #3296 Closes #3297
134 lines
4.4 KiB
C
134 lines
4.4 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2018, 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 https://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.
|
|
*
|
|
***************************************************************************/
|
|
#include "curlcheck.h"
|
|
|
|
#include "urldata.h"
|
|
#include "sendf.h"
|
|
|
|
/*
|
|
* This test hardcodes the knowledge of the buffer size which is internal to
|
|
* Curl_infof(). If that buffer is changed in size, this tests needs to be
|
|
* updated to still be valid.
|
|
*/
|
|
|
|
static struct Curl_easy *data;
|
|
|
|
static char input[4096];
|
|
static char result[4096];
|
|
|
|
int debugf_cb(CURL *handle, curl_infotype type, char *buf, size_t size,
|
|
void *userptr);
|
|
|
|
/*
|
|
* This debugf callback is simply dumping the string into the static buffer
|
|
* for the unit test to inspect. Since we know that we're only dealing with
|
|
* text we can afford the luxury of skipping the type check here.
|
|
*/
|
|
int
|
|
debugf_cb(CURL *handle, curl_infotype type, char *buf, size_t size,
|
|
void *userptr)
|
|
{
|
|
(void)handle;
|
|
(void)type;
|
|
(void)userptr;
|
|
|
|
memset(result, '\0', sizeof(result));
|
|
memcpy(result, buf, size);
|
|
return 0;
|
|
}
|
|
|
|
static CURLcode
|
|
unit_setup(void)
|
|
{
|
|
int res = 0;
|
|
|
|
global_init(CURL_GLOBAL_ALL);
|
|
data = curl_easy_init();
|
|
if(!data)
|
|
return CURLE_OUT_OF_MEMORY;
|
|
curl_easy_setopt(data, CURLOPT_DEBUGFUNCTION, debugf_cb);
|
|
curl_easy_setopt(data, CURLOPT_VERBOSE, 1L);
|
|
return CURLE_OK;
|
|
}
|
|
|
|
static void
|
|
unit_stop(void)
|
|
{
|
|
curl_easy_cleanup(data);
|
|
curl_global_cleanup();
|
|
}
|
|
|
|
UNITTEST_START
|
|
|
|
/* Injecting a simple short string via a format */
|
|
msnprintf(input, sizeof(input), "Simple Test");
|
|
Curl_infof(data, "%s", input);
|
|
fail_unless(strcmp(result, input) == 0, "Simple string test");
|
|
|
|
/* Injecting a few different variables with a format */
|
|
Curl_infof(data, "%s %u testing %lu\n", input, 42, 43L);
|
|
fail_unless(strcmp(result, "Simple Test 42 testing 43\n") == 0,
|
|
"Format string");
|
|
|
|
/* Variations of empty strings */
|
|
Curl_infof(data, "");
|
|
fail_unless(strlen(result) == 0, "Empty string");
|
|
Curl_infof(data, "%s", NULL);
|
|
fail_unless(strcmp(result, "(nil)") == 0, "Passing NULL as string");
|
|
|
|
/* A string just long enough to not be truncated */
|
|
memset(input, '\0', sizeof(input));
|
|
memset(input, 'A', 2048);
|
|
Curl_infof(data, "%s", input);
|
|
fail_unless(strlen(result) == 2048, "No truncation of infof input");
|
|
fail_unless(strcmp(result, input) == 0, "No truncation of infof input");
|
|
fail_unless(result[sizeof(result) - 1] == '\0',
|
|
"No truncation of infof input");
|
|
|
|
/* Just over the limit for truncation without newline */
|
|
memset(input + 2047, 'A', 4);
|
|
Curl_infof(data, "%s", input);
|
|
fail_unless(strlen(result) == 2048, "Truncation of infof input 1");
|
|
fail_unless(result[sizeof(result) - 1] == '\0', "Truncation of infof input 1");
|
|
fail_unless(strncmp(result + 2045, "...", 3) == 0,
|
|
"Truncation of infof input 1");
|
|
|
|
/* Just over the limit for truncation with newline */
|
|
memset(input + 2047, 'A', 4);
|
|
memset(input + 2047 + 4, '\n', 1);
|
|
Curl_infof(data, "%s\n", input);
|
|
fail_unless(strlen(result) == 2048, "Truncation of infof input 2");
|
|
fail_unless(result[sizeof(result) - 1] == '\0', "Truncation of infof input 2");
|
|
fail_unless(strncmp(result + 2044, "...", 3) == 0,
|
|
"Truncation of infof input 2");
|
|
|
|
/* Way over the limit for truncation with newline */
|
|
memset(input, '\0', sizeof(input));
|
|
memset(input, 'A', sizeof(input) - 1);
|
|
Curl_infof(data, "%s\n", input);
|
|
fail_unless(strlen(result) == 2048, "Truncation of infof input 3");
|
|
fail_unless(result[sizeof(result) - 1] == '\0', "Truncation of infof input 3");
|
|
fail_unless(strncmp(result + 2044, "...", 3) == 0,
|
|
"Truncation of infof input 3");
|
|
|
|
UNITTEST_STOP
|