diff options
Diffstat (limited to 'plugins/FTPFileYM/curl/lib/curl_gethostname.c')
| -rw-r--r-- | plugins/FTPFileYM/curl/lib/curl_gethostname.c | 100 | 
1 files changed, 100 insertions, 0 deletions
diff --git a/plugins/FTPFileYM/curl/lib/curl_gethostname.c b/plugins/FTPFileYM/curl/lib/curl_gethostname.c new file mode 100644 index 0000000000..ded1e6f948 --- /dev/null +++ b/plugins/FTPFileYM/curl/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 + +}  | 
