mirror of
https://github.com/curl/curl.git
synced 2024-12-21 06:50:10 +08:00
d0728c9109
Seen when setting `ENABLE_DEBUG=ON` and `-DDEBUGBUILD` for mingw-w64
gcc 13.2.0 CMake unity builds in 'Release' configurations.
```
curl/lib/curl_gethostname.c:71:5: error: 'strncpy' specified bound 1025 equals destination size [-Werror=stringop-truncation]
71 | strncpy(name, force_hostname, namelen);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from curl/_bld/lib/CMakeFiles/libcurl_object.dir/Unity/unity_0_c.c:175:
In function 'hostcache_timestamp_remove',
inlined from 'Curl_hash_clean_with_criterium' at curl/lib/hash.c:265:19,
inlined from 'Curl_hash_clean_with_criterium' at curl/lib/hash.c:247:1,
inlined from 'hostcache_prune' at curl/lib/hostip.c:228:3,
inlined from 'Curl_hostcache_prune' at curl/lib/hostip.c:256:21:
curl/lib/hostip.c:205:12: error: 'now' may be used uninitialized [-Werror=maybe-uninitialized]
205 | time_t age = prune->now - c->timestamp;
| ^~~
curl/lib/hostip.c: In function 'Curl_hostcache_prune':
curl/lib/hostip.c:241:10: note: 'now' was declared here
241 | time_t now;
| ^~~
In function 'hostcache_timestamp_remove',
inlined from 'fetch_addr' at curl/lib/hostip.c:310:8:
curl/lib/hostip.c:205:23: error: 'user.now' may be used uninitialized [-Werror=maybe-uninitialized]
205 | time_t age = prune->now - c->timestamp;
| ~~~~~^~~~~
curl/lib/hostip.c: In function 'fetch_addr':
curl/lib/hostip.c:304:33: note: 'user' declared here
304 | struct hostcache_prune_data user;
| ^~~~
In file included from curl/_bld/lib/CMakeFiles/libcurl_object.dir/Unity/unity_0_c.c:40:
curl/lib/cf-socket.c: In function 'cf_socket_send':
curl/lib/cf-socket.c:1294:10: error: 'c' may be used uninitialized [-Werror=maybe-uninitialized]
1294 | if(c >= ((100-ctx->wblock_percent)*256/100)) {
| ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
curl/lib/cf-socket.c:1292:19: note: 'c' was declared here
1292 | unsigned char c;
| ^
In file included from curl/_bld/lib/CMakeFiles/libcurl_object.dir/Unity/unity_0_c.c:364:
In function 'tftp_state_timeout',
inlined from 'tftp_multi_statemach' at curl/lib/tftp.c:1230:27:
curl/lib/tftp.c:1208:5: error: 'current' may be used uninitialized [-Werror=maybe-uninitialized]
1208 | if(current > state->rx_time + state->retry_time) {
| ^
curl/lib/tftp.c: In function 'tftp_multi_statemach':
curl/lib/tftp.c:1192:10: note: 'current' was declared here
1192 | time_t current;
| ^~~~~~~
```
Ref: https://ci.appveyor.com/project/curlorg/curl/builds/49792835/job/91c8dj5qb36spfe0#L112
Ref: https://github.com/curl/curl/actions/runs/9082968838/job/24960616145#step:12:62
Ref: #13592
Closes #13643
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 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.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.
|
|
*
|
|
* SPDX-License-Identifier: curl
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#include "curl_gethostname.h"
|
|
|
|
/*
|
|
* Curl_gethostname() is a wrapper around gethostname() which allows
|
|
* overriding the host name that the function would normally return.
|
|
* This capability is used by the test suite to verify exact matching
|
|
* of NTLM authentication, which exercises libcurl's MD4 and DES code
|
|
* as well as by the SMTP module when a hostname is not provided.
|
|
*
|
|
* For libcurl debug enabled builds host name overriding takes place
|
|
* when environment variable CURL_GETHOSTNAME is set, using the value
|
|
* held by the variable to override returned host name.
|
|
*
|
|
* Note: The function always returns the un-qualified hostname rather
|
|
* than being provider dependent.
|
|
*
|
|
* For libcurl shared library release builds the test suite preloads
|
|
* another shared library named libhostname using the LD_PRELOAD
|
|
* mechanism which intercepts, and might override, the gethostname()
|
|
* function call. In this case a given platform must support the
|
|
* LD_PRELOAD mechanism and additionally have environment variable
|
|
* CURL_GETHOSTNAME set in order to override the returned host name.
|
|
*
|
|
* For libcurl static library release builds no overriding takes place.
|
|
*/
|
|
|
|
int Curl_gethostname(char * const name, GETHOSTNAME_TYPE_ARG2 namelen)
|
|
{
|
|
#ifndef HAVE_GETHOSTNAME
|
|
|
|
/* Allow compilation and return failure when unavailable */
|
|
(void) name;
|
|
(void) namelen;
|
|
return -1;
|
|
|
|
#else
|
|
int err;
|
|
char *dot;
|
|
|
|
#ifdef DEBUGBUILD
|
|
|
|
/* Override host name when environment variable CURL_GETHOSTNAME is set */
|
|
const char *force_hostname = getenv("CURL_GETHOSTNAME");
|
|
if(force_hostname) {
|
|
strncpy(name, force_hostname, namelen - 1);
|
|
err = 0;
|
|
}
|
|
else {
|
|
name[0] = '\0';
|
|
err = gethostname(name, namelen);
|
|
}
|
|
|
|
#else /* DEBUGBUILD */
|
|
|
|
/* The call to system's gethostname() might get intercepted by the
|
|
libhostname library when libcurl is built as a non-debug shared
|
|
library when running the test suite. */
|
|
name[0] = '\0';
|
|
err = gethostname(name, namelen);
|
|
|
|
#endif
|
|
|
|
name[namelen - 1] = '\0';
|
|
|
|
if(err)
|
|
return err;
|
|
|
|
/* Truncate domain, leave only machine name */
|
|
dot = strchr(name, '.');
|
|
if(dot)
|
|
*dot = '\0';
|
|
|
|
return 0;
|
|
#endif
|
|
|
|
}
|