diff options
| author | fanquake <fanquake@gmail.com> | 2021-03-31 14:37:06 +0800 |
|---|---|---|
| committer | fanquake <fanquake@gmail.com> | 2021-03-31 14:38:06 +0800 |
| commit | b14462083f82aeaa9a376978f210db5538db296f (patch) | |
| tree | c3587535367f0ba6f5abf99d28f795d3291babd8 | |
| parent | e4a2918238559e0b82e287833f51b321b97518ab (diff) | |
| parent | 4783115fd4cccb46a7f8c592b34fa7c094c29410 (diff) | |
| download | bitcoin-b14462083f82aeaa9a376978f210db5538db296f.tar.xz | |
Merge #21486: build: link against -lsocket if required for *ifaddrs
4783115fd4cccb46a7f8c592b34fa7c094c29410 net: add ifaddrs.h include (fanquake)
879215e665a9f348c8d3fa92701c34065bc86a69 build: check if -lsocket is required with *ifaddrs (fanquake)
87deac66aa747481e6f34fc80599e1e490de3ea0 rand: only try and use freeifaddrs if available (fanquake)
Pull request description:
Fixes #21485 by linking against `-lsocket` when it's required for using `*ifaddrs` functions.
ACKs for top commit:
laanwj:
Code review ACK 4783115fd4cccb46a7f8c592b34fa7c094c29410
hebasto:
ACK 4783115fd4cccb46a7f8c592b34fa7c094c29410, I have reviewed the code and it looks OK, I agree it can be merged.
Tree-SHA512: 4542e036e9b029de970eff8a9230fe45d9204bb22313d075f474295d49bdaf1f1cbb36c0c6e2fa8dbbcdba518d8d3a68a6116ce304b82414315f333baf9af0e4
| -rw-r--r-- | build-aux/m4/l_socket.m4 | 36 | ||||
| -rw-r--r-- | configure.ac | 2 | ||||
| -rw-r--r-- | src/net.cpp | 4 | ||||
| -rw-r--r-- | src/randomenv.cpp | 4 |
4 files changed, 43 insertions, 3 deletions
diff --git a/build-aux/m4/l_socket.m4 b/build-aux/m4/l_socket.m4 new file mode 100644 index 0000000000..38923a98fc --- /dev/null +++ b/build-aux/m4/l_socket.m4 @@ -0,0 +1,36 @@ +# Illumos/SmartOS requires linking with -lsocket if +# using getifaddrs & freeifaddrs + +m4_define([_CHECK_SOCKET_testbody], [[ + #include <sys/types.h> + #include <ifaddrs.h> + + int main() { + struct ifaddrs *ifaddr; + getifaddrs(&ifaddr); + freeifaddrs(ifaddr); + } +]]) + +AC_DEFUN([CHECK_SOCKET], [ + + AC_LANG_PUSH(C++) + + AC_MSG_CHECKING([whether ifaddrs funcs can be used without link library]) + + AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + LIBS="$LIBS -lsocket" + AC_MSG_CHECKING([whether getifaddrs needs -lsocket]) + AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_FAILURE([cannot figure out how to use getifaddrs]) + ]) + ]) + + AC_LANG_POP +]) diff --git a/configure.ac b/configure.ac index 9ac2643374..c3eabad131 100644 --- a/configure.ac +++ b/configure.ac @@ -936,7 +936,7 @@ fi AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h]) -AC_CHECK_DECLS([getifaddrs, freeifaddrs],,, +AC_CHECK_DECLS([getifaddrs, freeifaddrs],[CHECK_SOCKET],, [#include <sys/types.h> #include <ifaddrs.h>] ) diff --git a/src/net.cpp b/src/net.cpp index d8706660f8..1dcb141421 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -31,6 +31,10 @@ #include <fcntl.h> #endif +#if HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS +#include <ifaddrs.h> +#endif + #ifdef USE_POLL #include <poll.h> #endif diff --git a/src/randomenv.cpp b/src/randomenv.cpp index 9248db1539..fa2a3a0607 100644 --- a/src/randomenv.cpp +++ b/src/randomenv.cpp @@ -38,7 +38,7 @@ #include <sys/utsname.h> #include <unistd.h> #endif -#if HAVE_DECL_GETIFADDRS +#if HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS #include <ifaddrs.h> #endif #if HAVE_SYSCTL @@ -361,7 +361,7 @@ void RandAddStaticEnv(CSHA512& hasher) hasher.Write((const unsigned char*)hname, strnlen(hname, 256)); } -#if HAVE_DECL_GETIFADDRS +#if HAVE_DECL_GETIFADDRS && HAVE_DECL_FREEIFADDRS // Network interfaces struct ifaddrs *ifad = NULL; getifaddrs(&ifad); |