11# Copyright (C) The c-ares project and its contributors
22# SPDX-License-Identifier: MIT
3- CMAKE_MINIMUM_REQUIRED (VERSION 3.1.0)
3+ CMAKE_MINIMUM_REQUIRED (VERSION 3.5.0)
4+
5+ list (APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR} /cmake/" )
46
57INCLUDE (CheckIncludeFiles)
68INCLUDE (CheckTypeSize)
@@ -10,10 +12,10 @@ INCLUDE (CheckCSourceCompiles)
1012INCLUDE (CheckStructHasMember)
1113INCLUDE (CheckLibraryExists)
1214
13- PROJECT (c-ares LANGUAGES C VERSION "1.20.1 " )
15+ PROJECT (c-ares LANGUAGES C VERSION "1.25.0 " )
1416
1517# Set this version before release
16- SET (CARES_VERSION "1.20.1 " )
18+ SET (CARES_VERSION "1.25.0 " )
1719
1820INCLUDE (GNUInstallDirs) # include this *AFTER* PROJECT(), otherwise paths are wrong.
1921
@@ -28,26 +30,38 @@ INCLUDE (GNUInstallDirs) # include this *AFTER* PROJECT(), otherwise paths are w
2830# For example, a version of 4:0:2 would generate output such as:
2931# libname.so -> libname.so.2
3032# libname.so.2 -> libname.so.2.2.0
31- SET (CARES_LIB_VERSIONINFO "9 :1:7 " )
33+ SET (CARES_LIB_VERSIONINFO "12 :1:10 " )
3234
3335
34- OPTION (CARES_STATIC "Build as a static library" OFF )
35- OPTION (CARES_SHARED "Build as a shared library" ON )
36- OPTION (CARES_INSTALL "Create installation targets (chain builders may want to disable this)" ON )
37- OPTION (CARES_STATIC_PIC "Build the static library as PIC (position independent)" OFF )
38- OPTION (CARES_BUILD_TESTS "Build and run tests" OFF )
36+ OPTION (CARES_STATIC "Build as a static library" OFF )
37+ OPTION (CARES_SHARED "Build as a shared library" ON )
38+ OPTION (CARES_INSTALL "Create installation targets (chain builders may want to disable this)" ON )
39+ OPTION (CARES_STATIC_PIC "Build the static library as PIC (position independent)" OFF )
40+ OPTION (CARES_BUILD_TESTS "Build and run tests" OFF )
3941OPTION (CARES_BUILD_CONTAINER_TESTS "Build and run container tests (implies CARES_BUILD_TESTS, Linux only)" OFF )
40- OPTION (CARES_BUILD_TOOLS "Build tools" ON )
42+ OPTION (CARES_BUILD_TOOLS "Build tools" ON )
43+ OPTION (CARES_SYMBOL_HIDING "Hide private symbols in shared libraries" OFF )
44+ OPTION (CARES_THREADS "Build with thread-safety support" ON )
4145SET (CARES_RANDOM_FILE "/dev/urandom" CACHE STRING "Suitable File / Device Path for entropy, such as /dev/urandom" )
4246
4347
48+ # Tests require a C++14 compiler
49+ IF (CARES_BUILD_TESTS OR CARES_BUILD_CONTAINER_TESTS)
50+ set (CMAKE_CXX_STANDARD 14)
51+ set (CMAKE_CXX_STANDARD_REQUIRED TRUE )
52+ set (CMAKE_CXX_EXTENSIONS FALSE )
53+ enable_language (CXX)
54+ ENDIF ()
55+
4456# Tests require static to be enabled on Windows to be able to access otherwise hidden symbols
45- IF (CARES_BUILD_TESTS AND (NOT CARES_STATIC) AND WIN32 )
57+ IF (( CARES_BUILD_TESTS OR CARES_BUILD_CONTAINER_TESTS) AND (NOT CARES_STATIC) AND WIN32 )
4658 SET (CARES_STATIC ON )
4759 SET (CARES_STATIC_PIC ON )
48- MESSAGE (WARNING "Static building was requested be disabled, but reenabled to support tests" )
60+ MESSAGE (WARNING "Static building was requested be disabled, but re-enabled to support tests" )
4961ENDIF ()
5062
63+ INCLUDE (EnableWarnings)
64+
5165# allow linking against the static runtime library in msvc
5266IF (MSVC )
5367 OPTION (CARES_MSVC_STATIC_RUNTIME "Link against the static runtime library" OFF )
@@ -70,6 +84,13 @@ IF (MSVC)
7084 ENDIF ()
7185ENDIF ()
7286
87+ IF (CARES_SYMBOL_HIDING)
88+ IF (CMAKE_VERSION VERSION_LESS 3.12)
89+ MESSAGE (FATAL_ERROR "Hiding symbols requires CMake 3.12" )
90+ ENDIF ()
91+ CMAKE_POLICY (SET CMP0063 NEW)
92+ ENDIF ()
93+
7394# Keep build organized.
7495SET (CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR} /${CMAKE_INSTALL_BINDIR} " )
7596SET (CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR} /${CMAKE_INSTALL_LIBDIR} " )
@@ -181,7 +202,12 @@ CHECK_INCLUDE_FILES (malloc.h HAVE_MALLOC_H)
181202CHECK_INCLUDE_FILES (memory.h HAVE_MEMORY_H)
182203CHECK_INCLUDE_FILES (netdb.h HAVE_NETDB_H)
183204CHECK_INCLUDE_FILES (netinet/in.h HAVE_NETINET_IN_H)
184- CHECK_INCLUDE_FILES (net/if.h HAVE_NET_IF_H)
205+ # On old MacOS SDK versions, you must include sys/socket.h before net/if.h
206+ IF (HAVE_SYS_SOCKET_H)
207+ CHECK_INCLUDE_FILES ("sys/socket.h;net/if.h" HAVE_NET_IF_H)
208+ ELSE ()
209+ CHECK_INCLUDE_FILES (net/if.h HAVE_NET_IF_H)
210+ ENDIF ()
185211CHECK_INCLUDE_FILES (signal.h HAVE_SIGNAL_H)
186212CHECK_INCLUDE_FILES (socket.h HAVE_SOCKET_H)
187213CHECK_INCLUDE_FILES (stdbool.h HAVE_STDBOOL_H)
@@ -196,10 +222,11 @@ CHECK_INCLUDE_FILES (sys/select.h HAVE_SYS_SELECT_H)
196222CHECK_INCLUDE_FILES (sys/stat.h HAVE_SYS_STAT_H)
197223CHECK_INCLUDE_FILES (sys/time.h HAVE_SYS_TIME_H)
198224CHECK_INCLUDE_FILES (sys/uio.h HAVE_SYS_UIO_H)
225+ CHECK_INCLUDE_FILES (sys/random.h HAVE_SYS_RANDOM_H)
226+ CHECK_INCLUDE_FILES (ifaddrs.h HAVE_IFADDRS_H)
199227CHECK_INCLUDE_FILES (time.h HAVE_TIME_H)
200228CHECK_INCLUDE_FILES (dlfcn.h HAVE_DLFCN_H)
201229CHECK_INCLUDE_FILES (unistd.h HAVE_UNISTD_H)
202-
203230# On OpenBSD, you must include sys/types.h before netinet/tcp.h
204231IF (HAVE_SYS_TYPES_H)
205232 CHECK_INCLUDE_FILES ("sys/types.h;netinet/tcp.h" HAVE_NETINET_TCP_H)
@@ -213,6 +240,8 @@ ENDIF ()
213240IF (WIN32 )
214241CHECK_INCLUDE_FILES ("winsock2.h;windows.h" HAVE_WINSOCK2_H)
215242CHECK_INCLUDE_FILES ("winsock2.h;ws2tcpip.h;windows.h" HAVE_WS2TCPIP_H)
243+ CHECK_INCLUDE_FILES ("winsock2.h;iphlpapi.h;windows.h" HAVE_IPHLPAPI_H)
244+ CHECK_INCLUDE_FILES ("winsock2.h;netioapi.h;windows.h" HAVE_NETIOAPI_H)
216245CHECK_INCLUDE_FILES ("winsock.h;windows.h" HAVE_WINSOCK_H)
217246CHECK_INCLUDE_FILES (windows.h HAVE_WINDOWS_H)
218247ENDIF ()
@@ -221,15 +250,15 @@ ENDIF ()
221250IF (CMAKE_SYSTEM_NAME STREQUAL "Darwin" )
222251 LIST (APPEND SYSFLAGS -D_DARWIN_C_SOURCE)
223252ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "Linux" )
224- LIST (APPEND SYSFLAGS -D_GNU_SOURCE -D_POSIX_C_SOURCE=199309L -D_XOPEN_SOURCE=600 )
253+ LIST (APPEND SYSFLAGS -D_GNU_SOURCE -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 )
225254ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "SunOS" )
226- LIST (APPEND SYSFLAGS -D__EXTENSIONS__ -D_REENTRANT -D_XOPEN_SOURCE=600 )
255+ LIST (APPEND SYSFLAGS -D__EXTENSIONS__ -D_REENTRANT -D_XOPEN_SOURCE=700 )
227256ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "AIX" )
228- LIST (APPEND SYSFLAGS -D_ALL_SOURCE -D_XOPEN_SOURCE=600 -D_USE_IRS)
257+ LIST (APPEND SYSFLAGS -D_ALL_SOURCE -D_XOPEN_SOURCE=700 -D_USE_IRS)
229258ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" )
230259 # Don't define _XOPEN_SOURCE on FreeBSD, it actually reduces visibility instead of increasing it
231260ELSEIF (WIN32 )
232- LIST (APPEND SYSFLAGS -DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -D_WIN32_WINNT=0x0600 )
261+ LIST (APPEND SYSFLAGS -DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -D_WIN32_WINNT=0x0602 )
233262ENDIF ()
234263ADD_DEFINITIONS (${SYSFLAGS} )
235264
@@ -277,6 +306,7 @@ CARES_EXTRAINCLUDE_IFSET (HAVE_ARPA_INET_H arpa/inet.h)
277306CARES_EXTRAINCLUDE_IFSET (HAVE_ARPA_NAMESER_H arpa/nameser.h)
278307CARES_EXTRAINCLUDE_IFSET (HAVE_NETDB_H netdb.h)
279308CARES_EXTRAINCLUDE_IFSET (HAVE_NET_IF_H net/if.h)
309+ CARES_EXTRAINCLUDE_IFSET (HAVE_IFADDRS_H ifaddrs.h)
280310CARES_EXTRAINCLUDE_IFSET (HAVE_NETINET_IN_H netinet/in.h)
281311CARES_EXTRAINCLUDE_IFSET (HAVE_NETINET_TCP_H netinet/tcp.h)
282312CARES_EXTRAINCLUDE_IFSET (HAVE_SIGNAL_H signal.h)
@@ -289,12 +319,15 @@ CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_SELECT_H sys/select.h)
289319CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_SOCKET_H sys/socket.h)
290320CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_SOCKIO_H sys/sockio.h)
291321CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_TIME_H sys/time.h)
322+ CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_STAT_H sys/stat.h)
292323CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_UIO_H sys/uio.h)
324+ CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_RANDOM_H sys/random.h)
293325CARES_EXTRAINCLUDE_IFSET (HAVE_TIME_H time.h)
294326CARES_EXTRAINCLUDE_IFSET (HAVE_FCNTL_H fcntl.h)
295327CARES_EXTRAINCLUDE_IFSET (HAVE_UNISTD_H unistd.h)
296328CARES_EXTRAINCLUDE_IFSET (HAVE_WINSOCK2_H winsock2.h)
297329CARES_EXTRAINCLUDE_IFSET (HAVE_WS2TCPIP_H ws2tcpip.h)
330+ CARES_EXTRAINCLUDE_IFSET (HAVE_IPHLPAPI_H iphlpapi.h)
298331CARES_EXTRAINCLUDE_IFSET (HAVE_WINDOWS_H windows.h)
299332
300333# Check Types
@@ -323,10 +356,8 @@ ENDMACRO ()
323356
324357CARES_TYPE_EXISTS (socklen_t HAVE_SOCKLEN_T)
325358CARES_TYPE_EXISTS (SOCKET HAVE_TYPE_SOCKET)
326- CARES_TYPE_EXISTS (bool HAVE_BOOL_T)
327359CARES_TYPE_EXISTS (ssize_t HAVE_SSIZE_T)
328360CARES_TYPE_EXISTS ("long long" HAVE_LONGLONG)
329- CARES_TYPE_EXISTS (sig_atomic_t HAVE_SIG_ATOMIC_T)
330361CARES_TYPE_EXISTS ("struct addrinfo" HAVE_STRUCT_ADDRINFO)
331362CARES_TYPE_EXISTS ("struct in6_addr" HAVE_STRUCT_IN6_ADDR)
332363CARES_TYPE_EXISTS ("struct sockaddr_in6" HAVE_STRUCT_SOCKADDR_IN6)
@@ -351,29 +382,26 @@ IF ((NOT APPLE) OR IOS_V10 OR MACOS_V1012)
351382 CHECK_SYMBOL_EXISTS (CLOCK_MONOTONIC "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_CLOCK_GETTIME_MONOTONIC)
352383ENDIF ()
353384
354- CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in6" sin6_scope_id "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID LANGUAGE C)
355-
356- # Check for "LL" numeric suffix support
357- CHECK_C_SOURCE_COMPILES ("int main() { int n=1234LL; return 0; }" HAVE_LL)
385+ CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in6" sin6_scope_id "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID LANGUAGE C)
358386
359387
360- CHECK_SYMBOL_EXISTS (bitncmp "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_BITNCMP)
361388CHECK_SYMBOL_EXISTS (closesocket "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_CLOSESOCKET)
362389CHECK_SYMBOL_EXISTS (CloseSocket "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_CLOSESOCKET_CAMEL)
363390CHECK_SYMBOL_EXISTS (connect "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_CONNECT)
364391CHECK_SYMBOL_EXISTS (fcntl "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_FCNTL)
365392CHECK_SYMBOL_EXISTS (freeaddrinfo "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_FREEADDRINFO)
366393CHECK_SYMBOL_EXISTS (getaddrinfo "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETADDRINFO)
367394CHECK_SYMBOL_EXISTS (getenv "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETENV)
368- CHECK_SYMBOL_EXISTS (gethostbyaddr "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETHOSTBYADDR)
369- CHECK_SYMBOL_EXISTS (gethostbyname "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETHOSTBYNAME)
370395CHECK_SYMBOL_EXISTS (gethostname "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETHOSTNAME)
371396CHECK_SYMBOL_EXISTS (getnameinfo "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETNAMEINFO)
372397CHECK_SYMBOL_EXISTS (getrandom "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETRANDOM)
373398CHECK_SYMBOL_EXISTS (getservbyport_r "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETSERVBYPORT_R)
374399CHECK_SYMBOL_EXISTS (getservbyname_r "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETSERVBYNAME_R)
375400CHECK_SYMBOL_EXISTS (gettimeofday "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETTIMEOFDAY)
376401CHECK_SYMBOL_EXISTS (if_indextoname "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_IF_INDEXTONAME)
402+ CHECK_SYMBOL_EXISTS (if_nametoindex "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_IF_NAMETOINDEX)
403+ CHECK_SYMBOL_EXISTS (ConvertInterfaceIndexToLuid "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_CONVERTINTERFACEINDEXTOLUID)
404+ CHECK_SYMBOL_EXISTS (ConvertInterfaceLuidToNameA "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_CONVERTINTERFACELUIDTONAMEA)
377405CHECK_SYMBOL_EXISTS (inet_net_pton "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_INET_NET_PTON)
378406IF (NOT WIN32 )
379407 # Disabled on Windows, because these functions are only really supported on Windows
@@ -399,7 +427,8 @@ CHECK_SYMBOL_EXISTS (strncmpi "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRNCMP
399427CHECK_SYMBOL_EXISTS (strnicmp "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_STRNICMP)
400428CHECK_SYMBOL_EXISTS (writev "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_WRITEV)
401429CHECK_SYMBOL_EXISTS (arc4random_buf "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_ARC4RANDOM_BUF)
402-
430+ CHECK_SYMBOL_EXISTS (stat "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_STAT)
431+ CHECK_SYMBOL_EXISTS (getifaddrs "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_GETIFADDRS)
403432
404433# On Android, the system headers may define __system_property_get(), but excluded
405434# from libc. We need to perform a link test instead of a header/symbol test.
@@ -411,6 +440,43 @@ SET (CMAKE_REQUIRED_DEFINITIONS)
411440SET (CMAKE_REQUIRED_LIBRARIES)
412441
413442
443+ ################################################################################
444+ # Threading Support
445+ #
446+ IF (CARES_THREADS)
447+ IF (WIN32 )
448+ # Do nothing, always has threads
449+ ELSE ()
450+ # Need to prefer pthreads on platforms that may have more threading choices
451+ # (e.g. Solaris)
452+ SET (CMAKE_THREAD_PREFER_PTHREAD TRUE )
453+ FIND_PACKAGE (Threads)
454+
455+ IF (Threads_FOUND)
456+ # Fix solaris9 bug due to libc having pthread_create() stubs that always fail. CMake
457+ # doesn't realize that the real pthread functions aren't in libc, so sets the pthread
458+ # library CAKE_THREAD_LIBS_INIT variable to blank instead of to the correct "-lpthread".
459+ IF (CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND NOT CMAKE_THREAD_LIBS_INIT)
460+ SET (CMAKE_THREAD_LIBS_INIT "-lpthread" )
461+ ENDIF ()
462+
463+ # PThread functions.
464+ CHECK_INCLUDE_FILES (pthread.h HAVE_PTHREAD_H)
465+ CHECK_INCLUDE_FILES (pthread_np.h HAVE_PTHREAD_NP_H)
466+ CARES_EXTRAINCLUDE_IFSET (HAVE_PTHREAD_H pthread.h)
467+ CARES_EXTRAINCLUDE_IFSET (HAVE_PTHREAD_NP_H pthread_np.h)
468+ CHECK_SYMBOL_EXISTS (pthread_init "${CMAKE_EXTRA_INCLUDE_FILES} " HAVE_PTHREAD_INIT)
469+ # Make sure libcares.pc.cmake knows about thread libraries on static builds
470+ LIST (APPEND CARES_DEPENDENT_LIBS ${CMAKE_THREAD_LIBS_INIT} )
471+ ELSE ()
472+ MESSAGE (WARNING "Threading support not found, disabling..." )
473+ SET (CARES_THREADS OFF )
474+ ENDIF ()
475+ ENDIF ()
476+ ENDIF ()
477+
478+
479+
414480################################################################################
415481# recv, recvfrom, send, getnameinfo, gethostname
416482# ARGUMENTS AND RETURN VALUES
@@ -421,7 +487,7 @@ SET (CMAKE_REQUIRED_LIBRARIES)
421487# defaults. This should be much quicker and nearly as accurate ... and even
422488# if not, it probably won't matter in the least.
423489
424- IF (HAVE_SSIZE_T AND HAVE_SOCKLEN_T)
490+ IF (HAVE_SSIZE_T AND HAVE_SOCKLEN_T AND NOT WIN32 )
425491 # If we have ssize_t and socklen_t, the API is usually sane and uses ssize_t and size_t for lengths
426492 SET (RECVFROM_TYPE_RETV ssize_t)
427493 SET (RECVFROM_TYPE_ARG3 size_t)
@@ -656,7 +722,6 @@ IF (CARES_INSTALL)
656722
657723 # pkgconfig support
658724 IF (NOT CARES_SHARED)
659- SET (CPPFLAG_CARES_STATICLIB "-DCARES_STATICLIB" )
660725 FOREACH (LIB ${CARES_DEPENDENT_LIBS} )
661726 SET (CARES_PRIVATE_LIBS "${CARES_PRIVATE_LIBS} -l${LIB} " )
662727 ENDFOREACH ()
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