diff options
Diffstat (limited to 'ConfigureChecks.cmake')
| -rw-r--r-- | ConfigureChecks.cmake | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake new file mode 100644 index 0000000..f0ba085 --- /dev/null +++ b/ConfigureChecks.cmake @@ -0,0 +1,205 @@ +# ConfigureChecks.cmake +# +# Wireshark - Network traffic analyzer +# By Gerald Combs <gerald@wireshark.org> +# Copyright 1998 Gerald Combs +# +# SPDX-License-Identifier: GPL-2.0-or-later +# + +include(CMakePushCheckState) + +#check system for includes +include(CheckIncludeFile) +include(CheckIncludeFiles) +check_include_file("arpa/inet.h" HAVE_ARPA_INET_H) +check_include_file("grp.h" HAVE_GRP_H) +# +# This may require <sys/types.h> to be included +# +check_include_files("sys/types.h;ifaddrs.h" HAVE_IFADDRS_H) +check_include_file("netinet/in.h" HAVE_NETINET_IN_H) +check_include_file("netdb.h" HAVE_NETDB_H) +check_include_file("pwd.h" HAVE_PWD_H) +check_include_file("sys/select.h" HAVE_SYS_SELECT_H) +check_include_file("sys/socket.h" HAVE_SYS_SOCKET_H) +check_include_file("sys/time.h" HAVE_SYS_TIME_H) +check_include_file("sys/utsname.h" HAVE_SYS_UTSNAME_H) +check_include_file("sys/wait.h" HAVE_SYS_WAIT_H) +check_include_file("unistd.h" HAVE_UNISTD_H) + +# +# On Linux, check for some additional headers, which we need as a +# workaround for a bonding driver bug and for libpcap's current lack +# of its own workaround for that bug. +# +if(CMAKE_SYSTEM_NAME STREQUAL "Linux") + # + # Those header files require <sys/socket.h>. + # + check_c_source_compiles( + "#include <sys/socket.h> + #include <linux/sockios.h> + int main(void) + { + return 0; + }" + HAVE_LINUX_SOCKIOS_H + ) + check_c_source_compiles( + "#include <sys/socket.h> + #include <linux/if_bonding.h> + int main(void) + { + return 0; + }" + HAVE_LINUX_IF_BONDING_H + ) +endif() + +#Functions +include(CheckFunctionExists) +include(CheckSymbolExists) + +# +# Platform-specific functions used in platform-specific code. +# We check for them only on the platform on which we use them. +# +if(CMAKE_SYSTEM_NAME STREQUAL "HP-UX") + # + # HP-UX + # + cmake_push_check_state() + set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_DL_LIBS}) + check_function_exists("dlget" HAVE_DLGET) + cmake_pop_check_state() +elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND CMAKE_SYSTEM_VERSION MATCHES "5[.][0-9.]*") + # + # Solaris + # + check_function_exists("getexecname" HAVE_GETEXECNAME) +endif() + +check_symbol_exists("clock_gettime" "time.h" HAVE_CLOCK_GETTIME) +# Some platforms (macOS pre 10.15) are non-conformant with C11 and lack timespec_get() +check_symbol_exists("timespec_get" "time.h" HAVE_TIMESPEC_GET) +if(NOT MSVC) + check_symbol_exists("localtime_r" "time.h" HAVE_LOCALTIME_R) + check_symbol_exists("gmtime_r" "time.h" HAVE_GMTIME_R) + check_symbol_exists("timegm" "time.h" HAVE_TIMEGM) + check_symbol_exists("tzset" "time.h" HAVE_TZSET) + check_symbol_exists("tzname" "time.h" HAVE_TZNAME) +endif() +check_function_exists("getifaddrs" HAVE_GETIFADDRS) +check_function_exists("issetugid" HAVE_ISSETUGID) +check_function_exists("setresgid" HAVE_SETRESGID) +check_function_exists("setresuid" HAVE_SETRESUID) +if (APPLE) + cmake_push_check_state() + set(CMAKE_REQUIRED_LIBRARIES ${APPLE_CORE_FOUNDATION_LIBRARY}) + check_function_exists("CFPropertyListCreateWithStream" HAVE_CFPROPERTYLISTCREATEWITHSTREAM) + cmake_pop_check_state() +endif() +if(UNIX) + cmake_push_check_state() + list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE) + check_symbol_exists("memmem" "string.h" HAVE_MEMMEM) + check_symbol_exists("strerrorname_np" "string.h" HAVE_STRERRORNAME_NP) + check_symbol_exists("strptime" "time.h" HAVE_STRPTIME) + check_symbol_exists("vasprintf" "stdio.h" HAVE_VASPRINTF) + cmake_pop_check_state() +endif() + +#Struct members +include(CheckStructHasMember) +check_struct_has_member("struct stat" st_blksize sys/stat.h HAVE_STRUCT_STAT_ST_BLKSIZE) +check_struct_has_member("struct stat" st_birthtime sys/stat.h HAVE_STRUCT_STAT_ST_BIRTHTIME) +check_struct_has_member("struct stat" __st_birthtime sys/stat.h HAVE_STRUCT_STAT___ST_BIRTHTIME) +check_struct_has_member("struct tm" tm_zone time.h HAVE_STRUCT_TM_TM_ZONE) +check_struct_has_member("struct tm" tm_gmtoff time.h HAVE_STRUCT_TM_TM_GMTOFF) + +# Types +include(CheckTypeSize) +check_type_size("ssize_t" SSIZE_T) + +# +# Check if the libc vsnprintf() conforms to C99. If this fails we may +# need to fall-back on GLib I/O. +# +# If cross-compiling we can't check so just assume this requirement is met. +# +if(NOT CMAKE_CROSSCOMPILING) + check_c_source_runs(" + #include <stdio.h> + int main(void) + { + /* Check that snprintf() and vsnprintf() don't return + * -1 if the buffer is too small. C99 says this value + * is the length that would be written not including + * the nul byte. */ + char buf[3]; + return snprintf(buf, sizeof(buf), \"%s\", \"ABCDEF\") > 0 ? 0 : 1; + }" + HAVE_C99_VSNPRINTF + ) + if (NOT HAVE_C99_VSNPRINTF) + message(FATAL_ERROR +"Building Wireshark requires a C99 compliant vsnprintf() and this \ +target does not meet that requirement. Compiling for ${CMAKE_SYSTEM} \ +using ${CMAKE_C_COMPILER_ID}. Please report this issue to the Wireshark \ +developers at wireshark-dev@wireshark.org." + ) + endif() +endif() + +# +# *If* we found libnl, check if we can use nl80211 stuff with it. +# +if (NL_FOUND) + check_c_source_compiles( + "#include <linux/nl80211.h> + int main(void) { + int x = NL80211_FREQUENCY_ATTR_MAX_TX_POWER; + x |= NL80211_ATTR_SUPPORTED_IFTYPES; + x |= NL80211_ATTR_SUPPORTED_COMMANDS; + x |= NL80211_ATTR_WIPHY_FREQ; + x |= NL80211_CHAN_NO_HT; + (void)x; + }" + HAVE_NL80211 + ) + check_c_source_compiles( + "#include <linux/nl80211.h> + int main(void) { + enum nl80211_commands x = NL80211_CMD_SET_CHANNEL; + }" + HAVE_NL80211_CMD_SET_CHANNEL + ) + check_c_source_compiles( + "#include <linux/nl80211.h> + int main(void) { + enum nl80211_protocol_features x = NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP; + }" + HAVE_NL80211_SPLIT_WIPHY_DUMP + ) + check_c_source_compiles( + "#include <linux/nl80211.h> + int main(void) { + enum nl80211_attrs x = NL80211_ATTR_VHT_CAPABILITY; + }" + HAVE_NL80211_VHT_CAPABILITY + ) +endif() + +# +# Editor modelines - https://www.wireshark.org/tools/modelines.html +# +# Local variables: +# c-basic-offset: 8 +# tab-width: 8 +# indent-tabs-mode: t +# End: +# +# vi: set shiftwidth=8 tabstop=8 noexpandtab: +# :indentSize=8:tabSize=8:noTabs=false: +# |