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authorBrad King <brad.king@kitware.com>2014-11-10 15:43:10 (GMT)
committerCMake Topic Stage <kwrobot@kitware.com>2014-11-10 15:43:10 (GMT)
commit75f3a282b76baf615b17767d3768b781bfc463a7 (patch)
tree87dd923a0fa7e35491f7bec4b07e06966548a08a /Utilities/cmcurl/lib/curl_gethostname.c
parenta1f964ef6897343cd47f904b7cf7ad94b2b65e70 (diff)
parentc02c747b85cf7bba8e81a955722122e844688d4c (diff)
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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.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/curl_gethostname.c b/Utilities/cmcurl/lib/curl_gethostname.c
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+++ b/Utilities/cmcurl/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.
+ */
+
+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
+
+}