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-rw-r--r--libcurl/src/lib/curl_gethostname.c100
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diff --git a/libcurl/src/lib/curl_gethostname.c b/libcurl/src/lib/curl_gethostname.c
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--- a/libcurl/src/lib/curl_gethostname.c
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-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2012, 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 http://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 "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.
- */
-
-CURL_STATIC int Curl_gethostname(char *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);
- 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
-
-}