diff options
| author | Steve Holme <steve_holme@hotmail.com> | 2019-05-28 22:07:33 +0100 |
|---|---|---|
| committer | Steve Holme <steve_holme@hotmail.com> | 2019-05-29 07:19:20 +0100 |
| commit | 09eef8af18c7cc1a20f132843880f60f692d76c8 (patch) | |
| tree | d62fe94b2986af1108ca71329c73238a3f092d4b /lib/system_win32.c | |
| parent | 5908009e318d070e5ba6765e47a96c61b100c273 (diff) | |
| download | curl-09eef8af18c7cc1a20f132843880f60f692d76c8.tar.gz | |
url: Load if_nametoindex() dynamically from iphlpapi.dll on Windows
This fixes the static dependency on iphlpapi.lib and allows curl to
build for targets prior to Windows Vista.
This partially reverts 170bd047.
Fixes #3960
Closes #3958
Diffstat (limited to 'lib/system_win32.c')
| -rw-r--r-- | lib/system_win32.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/lib/system_win32.c b/lib/system_win32.c index f7f817dd4..1143fa6aa 100644 --- a/lib/system_win32.c +++ b/lib/system_win32.c @@ -5,7 +5,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 2016 - 2017, Steve Holme, <steve_holme@hotmail.com>. + * Copyright (C) 2016 - 2019, Steve Holme, <steve_holme@hotmail.com>. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms @@ -36,6 +36,12 @@ LARGE_INTEGER Curl_freq; bool Curl_isVistaOrGreater; +/* Handle of iphlpapp.dll */ +static HMODULE s_hIpHlpApiDll = NULL; + +/* Pointer to the if_nametoindex function */ +IF_NAMETOINDEX_FN Curl_if_nametoindex = NULL; + /* Curl_win32_init() performs win32 global initialization */ CURLcode Curl_win32_init(long flags) { @@ -89,6 +95,17 @@ CURLcode Curl_win32_init(long flags) } #endif + s_hIpHlpApiDll = Curl_load_library(TEXT("iphlpapi.dll")); + if(s_hIpHlpApiDll) { + /* Get the address of the if_nametoindex function */ + IF_NAMETOINDEX_FN pIfNameToIndex = + CURLX_FUNCTION_CAST(IF_NAMETOINDEX_FN, + (GetProcAddress(s_hIpHlpApiDll, "if_nametoindex"))); + + if(pIfNameToIndex) + Curl_if_nametoindex = pIfNameToIndex; + } + if(Curl_verify_windows_version(6, 0, PLATFORM_WINNT, VERSION_GREATER_THAN_EQUAL)) { Curl_isVistaOrGreater = TRUE; @@ -103,6 +120,12 @@ CURLcode Curl_win32_init(long flags) /* Curl_win32_cleanup() is the opposite of Curl_win32_init() */ void Curl_win32_cleanup(long init_flags) { + if(s_hIpHlpApiDll) { + FreeLibrary(s_hIpHlpApiDll); + s_hIpHlpApiDll = NULL; + Curl_if_nametoindex = NULL; + } + #ifdef USE_WINDOWS_SSPI Curl_sspi_global_cleanup(); #endif @@ -114,10 +137,6 @@ void Curl_win32_cleanup(long init_flags) } } -#if defined(USE_WINDOWS_SSPI) || (!defined(CURL_DISABLE_TELNET) && \ - defined(USE_WINSOCK)) - - #if !defined(LOAD_WITH_ALTERED_SEARCH_PATH) #define LOAD_WITH_ALTERED_SEARCH_PATH 0x00000008 #endif @@ -140,8 +159,6 @@ typedef HMODULE (APIENTRY *LOADLIBRARYEX_FN)(LPCTSTR, HANDLE, DWORD); # define LOADLIBARYEX "LoadLibraryExA" #endif -#endif /* USE_WINDOWS_SSPI || (!CURL_DISABLE_TELNET && USE_WINSOCK) */ - /* * Curl_verify_windows_version() * @@ -334,9 +351,6 @@ bool Curl_verify_windows_version(const unsigned int majorVersion, return matched; } -#if defined(USE_WINDOWS_SSPI) || (!defined(CURL_DISABLE_TELNET) && \ - defined(USE_WINSOCK)) - /* * Curl_load_library() * @@ -411,6 +425,4 @@ HMODULE Curl_load_library(LPCTSTR filename) return hModule; } -#endif /* USE_WINDOWS_SSPI || (!CURL_DISABLE_TELNET && USE_WINSOCK) */ - #endif /* WIN32 */ |