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192.168.1.100 / T106_DC / 582072f7236d97759b14a1176c2f4abfa74212d9 / . / ap / lib / libcurl / curl-7.54.1 / CMake / FindGSS.cmake
blob: 60dcb73c923a2a23f4a5761cbf86dd440bbf4096 [file] [log] [blame]
lh9ed821d2023-04-07 01:36:19 -0700[diff] [blame]1# - Try to find the GSS Kerberos library
2# Once done this will define
3#
4# GSS_ROOT_DIR - Set this variable to the root installation of GSS
5#
6# Read-Only variables:
7# GSS_FOUND - system has the Heimdal library
8# GSS_FLAVOUR - "MIT" or "Heimdal" if anything found.
9# GSS_INCLUDE_DIR - the Heimdal include directory
10# GSS_LIBRARIES - The libraries needed to use GSS
11# GSS_LINK_DIRECTORIES - Directories to add to linker search path
12# GSS_LINKER_FLAGS - Additional linker flags
13# GSS_COMPILER_FLAGS - Additional compiler flags
14# GSS_VERSION - This is set to version advertised by pkg-config or read from manifest.
15# In case the library is found but no version info available it'll be set to "unknown"
16
17set(_MIT_MODNAME mit-krb5-gssapi)
18set(_HEIMDAL_MODNAME heimdal-gssapi)
19
20include(CheckIncludeFile)
21include(CheckIncludeFiles)
22include(CheckTypeSize)
23
24set(_GSS_ROOT_HINTS
25 "${GSS_ROOT_DIR}"
26 "$ENV{GSS_ROOT_DIR}"
27)
28
29# try to find library using system pkg-config if user didn't specify root dir
30if(NOT GSS_ROOT_DIR AND NOT "$ENV{GSS_ROOT_DIR}")
31 if(UNIX)
32 find_package(PkgConfig QUIET)
33 pkg_search_module(_GSS_PKG ${_MIT_MODNAME} ${_HEIMDAL_MODNAME})
34 list(APPEND _GSS_ROOT_HINTS "${_GSS_PKG_PREFIX}")
35 elseif(WIN32)
36 list(APPEND _GSS_ROOT_HINTS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos;InstallDir]")
37 endif()
38endif()
39
40if(NOT _GSS_FOUND) #not found by pkg-config. Let's take more traditional approach.
41 find_file(_GSS_CONFIGURE_SCRIPT
42 NAMES
43 "krb5-config"
44 HINTS
45 ${_GSS_ROOT_HINTS}
46 PATH_SUFFIXES
47 bin
48 NO_CMAKE_PATH
49 NO_CMAKE_ENVIRONMENT_PATH
50 )
51
52 # if not found in user-supplied directories, maybe system knows better
53 find_file(_GSS_CONFIGURE_SCRIPT
54 NAMES
55 "krb5-config"
56 PATH_SUFFIXES
57 bin
58 )
59
60 if(_GSS_CONFIGURE_SCRIPT)
61 execute_process(
62 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--cflags" "gssapi"
63 OUTPUT_VARIABLE _GSS_CFLAGS
64 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
65 )
66message(STATUS "CFLAGS: ${_GSS_CFLAGS}")
67 if(NOT _GSS_CONFIGURE_FAILED) # 0 means success
68 # should also work in an odd case when multiple directories are given
69 string(STRIP "${_GSS_CFLAGS}" _GSS_CFLAGS)
70 string(REGEX REPLACE " +-I" ";" _GSS_CFLAGS "${_GSS_CFLAGS}")
71 string(REGEX REPLACE " +-([^I][^ \\t;]*)" ";-\\1"_GSS_CFLAGS "${_GSS_CFLAGS}")
72
73 foreach(_flag ${_GSS_CFLAGS})
74 if(_flag MATCHES "^-I.*")
75 string(REGEX REPLACE "^-I" "" _val "${_flag}")
76 list(APPEND _GSS_INCLUDE_DIR "${_val}")
77 else()
78 list(APPEND _GSS_COMPILER_FLAGS "${_flag}")
79 endif()
80 endforeach()
81 endif()
82
83 execute_process(
84 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--libs" "gssapi"
85 OUTPUT_VARIABLE _GSS_LIB_FLAGS
86 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
87 )
88message(STATUS "LDFLAGS: ${_GSS_LIB_FLAGS}")
89 if(NOT _GSS_CONFIGURE_FAILED) # 0 means success
90 # this script gives us libraries and link directories. Blah. We have to deal with it.
91 string(STRIP "${_GSS_LIB_FLAGS}" _GSS_LIB_FLAGS)
92 string(REGEX REPLACE " +-(L|l)" ";-\\1" _GSS_LIB_FLAGS "${_GSS_LIB_FLAGS}")
93 string(REGEX REPLACE " +-([^Ll][^ \\t;]*)" ";-\\1"_GSS_LIB_FLAGS "${_GSS_LIB_FLAGS}")
94
95 foreach(_flag ${_GSS_LIB_FLAGS})
96 if(_flag MATCHES "^-l.*")
97 string(REGEX REPLACE "^-l" "" _val "${_flag}")
98 list(APPEND _GSS_LIBRARIES "${_val}")
99 elseif(_flag MATCHES "^-L.*")
100 string(REGEX REPLACE "^-L" "" _val "${_flag}")
101 list(APPEND _GSS_LINK_DIRECTORIES "${_val}")
102 else()
103 list(APPEND _GSS_LINKER_FLAGS "${_flag}")
104 endif()
105 endforeach()
106 endif()
107
108
109 execute_process(
110 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--version"
111 OUTPUT_VARIABLE _GSS_VERSION
112 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
113 )
114
115 # older versions may not have the "--version" parameter. In this case we just don't care.
116 if(_GSS_CONFIGURE_FAILED)
117 set(_GSS_VERSION 0)
118 endif()
119
120
121 execute_process(
122 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--vendor"
123 OUTPUT_VARIABLE _GSS_VENDOR
124 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
125 )
126
127 # older versions may not have the "--vendor" parameter. In this case we just don't care.
128 if(_GSS_CONFIGURE_FAILED)
129 set(GSS_FLAVOUR "Heimdal") # most probably, shouldn't really matter
130 else()
131 if(_GSS_VENDOR MATCHES ".*H|heimdal.*")
132 set(GSS_FLAVOUR "Heimdal")
133 else()
134 set(GSS_FLAVOUR "MIT")
135 endif()
136 endif()
137
138 else() # either there is no config script or we are on platform that doesn't provide one (Windows?)
139
140 find_path(_GSS_INCLUDE_DIR
141 NAMES
142 "gssapi/gssapi.h"
143 HINTS
144 ${_GSS_ROOT_HINTS}
145 PATH_SUFFIXES
146 include
147 inc
148 )
149
150 if(_GSS_INCLUDE_DIR) #jay, we've found something
151 set(CMAKE_REQUIRED_INCLUDES "${_GSS_INCLUDE_DIR}")
152 check_include_files( "gssapi/gssapi_generic.h;gssapi/gssapi_krb5.h" _GSS_HAVE_MIT_HEADERS)
153
154 if(_GSS_HAVE_MIT_HEADERS)
155 set(GSS_FLAVOUR "MIT")
156 else()
157 # prevent compiling the header - just check if we can include it
158 set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D__ROKEN_H__")
159 check_include_file( "roken.h" _GSS_HAVE_ROKEN_H)
160
161 check_include_file( "heimdal/roken.h" _GSS_HAVE_HEIMDAL_ROKEN_H)
162 if(_GSS_HAVE_ROKEN_H OR _GSS_HAVE_HEIMDAL_ROKEN_H)
163 set(GSS_FLAVOUR "Heimdal")
164 endif()
165 set(CMAKE_REQUIRED_DEFINITIONS "")
166 endif()
167 else()
168 # I'm not convienced if this is the right way but this is what autotools do at the moment
169 find_path(_GSS_INCLUDE_DIR
170 NAMES
171 "gssapi.h"
172 HINTS
173 ${_GSS_ROOT_HINTS}
174 PATH_SUFFIXES
175 include
176 inc
177 )
178
179 if(_GSS_INCLUDE_DIR)
180 set(GSS_FLAVOUR "Heimdal")
181 endif()
182 endif()
183
184 # if we have headers, check if we can link libraries
185 if(GSS_FLAVOUR)
186 set(_GSS_LIBDIR_SUFFIXES "")
187 set(_GSS_LIBDIR_HINTS ${_GSS_ROOT_HINTS})
188 get_filename_component(_GSS_CALCULATED_POTENTIAL_ROOT "${_GSS_INCLUDE_DIR}" PATH)
189 list(APPEND _GSS_LIBDIR_HINTS ${_GSS_CALCULATED_POTENTIAL_ROOT})
190
191 if(WIN32)
192 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
193 list(APPEND _GSS_LIBDIR_SUFFIXES "lib/AMD64")
194 if(GSS_FLAVOUR STREQUAL "MIT")
195 set(_GSS_LIBNAME "gssapi64")
196 else()
197 set(_GSS_LIBNAME "libgssapi")
198 endif()
199 else()
200 list(APPEND _GSS_LIBDIR_SUFFIXES "lib/i386")
201 if(GSS_FLAVOUR STREQUAL "MIT")
202 set(_GSS_LIBNAME "gssapi32")
203 else()
204 set(_GSS_LIBNAME "libgssapi")
205 endif()
206 endif()
207 else()
208 list(APPEND _GSS_LIBDIR_SUFFIXES "lib;lib64") # those suffixes are not checked for HINTS
209 if(GSS_FLAVOUR STREQUAL "MIT")
210 set(_GSS_LIBNAME "gssapi_krb5")
211 else()
212 set(_GSS_LIBNAME "gssapi")
213 endif()
214 endif()
215
216 find_library(_GSS_LIBRARIES
217 NAMES
218 ${_GSS_LIBNAME}
219 HINTS
220 ${_GSS_LIBDIR_HINTS}
221 PATH_SUFFIXES
222 ${_GSS_LIBDIR_SUFFIXES}
223 )
224
225 endif()
226
227 endif()
228else()
229 if(_GSS_PKG_${_MIT_MODNAME}_VERSION)
230 set(GSS_FLAVOUR "MIT")
231 set(_GSS_VERSION _GSS_PKG_${_MIT_MODNAME}_VERSION)
232 else()
233 set(GSS_FLAVOUR "Heimdal")
234 set(_GSS_VERSION _GSS_PKG_${_MIT_HEIMDAL}_VERSION)
235 endif()
236endif()
237
238set(GSS_INCLUDE_DIR ${_GSS_INCLUDE_DIR})
239set(GSS_LIBRARIES ${_GSS_LIBRARIES})
240set(GSS_LINK_DIRECTORIES ${_GSS_LINK_DIRECTORIES})
241set(GSS_LINKER_FLAGS ${_GSS_LINKER_FLAGS})
242set(GSS_COMPILER_FLAGS ${_GSS_COMPILER_FLAGS})
243set(GSS_VERSION ${_GSS_VERSION})
244
245if(GSS_FLAVOUR)
246
247 if(NOT GSS_VERSION AND GSS_FLAVOUR STREQUAL "Heimdal")
248 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
249 set(HEIMDAL_MANIFEST_FILE "Heimdal.Application.amd64.manifest")
250 else()
251 set(HEIMDAL_MANIFEST_FILE "Heimdal.Application.x86.manifest")
252 endif()
253
254 if(EXISTS "${GSS_INCLUDE_DIR}/${HEIMDAL_MANIFEST_FILE}")
255 file(STRINGS "${GSS_INCLUDE_DIR}/${HEIMDAL_MANIFEST_FILE}" heimdal_version_str
256 REGEX "^.*version=\"[0-9]\\.[^\"]+\".*$")
257
258 string(REGEX MATCH "[0-9]\\.[^\"]+"
259 GSS_VERSION "${heimdal_version_str}")
260 endif()
261
262 if(NOT GSS_VERSION)
263 set(GSS_VERSION "Heimdal Unknown")
264 endif()
265 elseif(NOT GSS_VERSION AND GSS_FLAVOUR STREQUAL "MIT")
266 get_filename_component(_MIT_VERSION "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos\\SDK\\CurrentVersion;VersionString]" NAME CACHE)
267 if(WIN32 AND _MIT_VERSION)
268 set(GSS_VERSION "${_MIT_VERSION}")
269 else()
270 set(GSS_VERSION "MIT Unknown")
271 endif()
272 endif()
273endif()
274
275
276include(FindPackageHandleStandardArgs)
277
278set(_GSS_REQUIRED_VARS GSS_LIBRARIES GSS_FLAVOUR)
279
280find_package_handle_standard_args(GSS
281 REQUIRED_VARS
282 ${_GSS_REQUIRED_VARS}
283 VERSION_VAR
284 GSS_VERSION
285 FAIL_MESSAGE
286 "Could NOT find GSS, try to set the path to GSS root folder in the system variable GSS_ROOT_DIR"
287)
288
289mark_as_advanced(GSS_INCLUDE_DIR GSS_LIBRARIES)