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author | Brad King <brad.king@kitware.com> | 2014-11-10 15:43:10 (GMT) |
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committer | CMake Topic Stage <kwrobot@kitware.com> | 2014-11-10 15:43:10 (GMT) |
commit | 75f3a282b76baf615b17767d3768b781bfc463a7 (patch) | |
tree | 87dd923a0fa7e35491f7bec4b07e06966548a08a /Utilities/cmcurl/lib/curl_gethostname.c | |
parent | a1f964ef6897343cd47f904b7cf7ad94b2b65e70 (diff) | |
parent | c02c747b85cf7bba8e81a955722122e844688d4c (diff) | |
download | CMake-75f3a282b76baf615b17767d3768b781bfc463a7.zip CMake-75f3a282b76baf615b17767d3768b781bfc463a7.tar.gz CMake-75f3a282b76baf615b17767d3768b781bfc463a7.tar.bz2 |
Merge topic 'update-curl'
c02c747b Tests: Update expected CTestTestFailedSubmit output
a427ed0c curl: Skip sanity check that triggers Clang warning
17b24d55 curl: Disable warnings to avoid changing 3rd party code
4c3bd340 curl: Skip check for inet_pton on Windows
54cb23c6 curl: Restore installation of OpenSSL DLLs
c50f0327 curl: Restore CURL_CA_BUNDLE option
681693c9 curl: Restore CMake-specific zlib selection code
10d80b68 curl: Restore CMake-specific test and install code
19593042 curl: Configure build to work within CMake
cf54aebb curl: Fix curl.h inclusion of curlbuild.h from CMake sources
c17e3207 curl: Use arch-aware CHECK_TYPE_SIZE results
1f7cb7e2 curl: Fix detection of headers with dependencies
b18c9044 curl: Drop inclusion of .rc file for static lib
860f0a2d curl: Select file APIs on Windows
5a3b55ed curl: Do not use 'dl' on HP-UX
59242702 curl: Simplify if() conditions on check result variables
...
Diffstat (limited to 'Utilities/cmcurl/lib/curl_gethostname.c')
-rw-r--r-- | Utilities/cmcurl/lib/curl_gethostname.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/curl_gethostname.c b/Utilities/cmcurl/lib/curl_gethostname.c new file mode 100644 index 0000000..ded1e6f --- /dev/null +++ b/Utilities/cmcurl/lib/curl_gethostname.c @@ -0,0 +1,100 @@ +/*************************************************************************** + * _ _ ____ _ + * 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. + */ + +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 + +} |