Fix a potential read from a freed buffer when sending data to a blacklisted node.

[meshlink] / configure.ac

diff --git a/configure.ac b/configure.ac
index bc3d27fd1d916631eb537f14447bb82efa3907ea..b1b1118d138c1c2b1e5f47d55bbe4c3c2a22789b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -57,7 +57,7 @@ dnl No -fstack-protector-all because it doesn't work on all platforms or archite
 
 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
 AS_IF([test "x$enable_hardening" != "xno"],
-  [CPPFLAGS="$CPPFLAGS -W -pedantic"
+  [CPPFLAGS="$CPPFLAGS -Wall -W -pedantic"
    AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORITFY_SOURCE=2"])
    AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
      [AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"])]
@@ -118,23 +118,15 @@ AM_CONDITIONAL(INSTALL_TESTS, test "$install_tests" = true)
 dnl Checks for header files.
 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
 
-AC_CHECK_HEADERS([syslog.h sys/file.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h curses.h])
+AC_CHECK_HEADERS([syslog.h sys/file.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h curses.h ifaddrs.h])
 
 dnl Checks for typedefs, structures, and compiler characteristics.
 MeshLink_ATTRIBUTE(__malloc__)
 MeshLink_ATTRIBUTE(__warn_unused_result__)
 
-AC_CHECK_TYPES([socklen_t, struct addrinfo, struct sockaddr_in6], , ,
-  [#include "$srcdir/src/have.h"]
-)
-
-AC_CHECK_TYPES([struct sockaddr_storage], ,AC_MSG_ERROR([System must support struct sockaddr_storage.]),
-  [#include "$srcdir/src/have.h"]
-)
-
 dnl Checks for library functions.
 AC_TYPE_SIGNAL
-AC_CHECK_FUNCS([asprintf fchmod fork gettimeofday random select setns strdup usleep],
+AC_CHECK_FUNCS([asprintf fchmod fork gettimeofday random pselect select setns strdup usleep getifaddrs freeifaddrs],
   [], [], [#include "$srcdir/src/have.h"]
 )
 
@@ -143,13 +135,6 @@ dnl Support for SunOS
 AC_CHECK_FUNC(socket, [], [
   AC_CHECK_LIB(socket, connect)
 ])
-AC_CHECK_FUNC(gethostbyname, [], [
-  AC_CHECK_LIB(nsl, gethostbyname)
-])
-
-AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo],
-  [], [], [#include "$srcdir/src/have.h"]
-)
 
 AC_CACHE_SAVE