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authorYang Tse <yangsita@gmail.com>2011-07-29 13:25:52 +0200
committerYang Tse <yangsita@gmail.com>2011-07-29 13:27:10 +0200
commitbcbac913d65275cc9e22534a8b4cda6994b75977 (patch)
treece057b99e26849afbf3421790dd9fe54134bf1d2 /m4
parent5cdbfa1837394c3ac06828c8322d1441b084aec1 (diff)
socketpair() usage tracking to allow fd leak detection
Diffstat (limited to 'm4')
-rw-r--r--m4/curl-functions.m491
1 files changed, 90 insertions, 1 deletions
diff --git a/m4/curl-functions.m4 b/m4/curl-functions.m4
index ec57b5423..6cc49f13c 100644
--- a/m4/curl-functions.m4
+++ b/m4/curl-functions.m4
@@ -21,7 +21,7 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
-# serial 65
+# serial 66
dnl CURL_INCLUDES_ARPA_INET
@@ -5624,6 +5624,95 @@ AC_DEFUN([CURL_CHECK_FUNC_SOCKET], [
])
+dnl CURL_CHECK_FUNC_SOCKETPAIR
+dnl -------------------------------------------------
+dnl Verify if socketpair is available, prototyped, and
+dnl can be compiled. If all of these are true, and
+dnl usage has not been previously disallowed with
+dnl shell variable curl_disallow_socketpair, then
+dnl HAVE_SOCKETPAIR will be defined.
+
+AC_DEFUN([CURL_CHECK_FUNC_SOCKETPAIR], [
+ AC_REQUIRE([CURL_INCLUDES_SYS_SOCKET])dnl
+ AC_REQUIRE([CURL_INCLUDES_SOCKET])dnl
+ #
+ tst_links_socketpair="unknown"
+ tst_proto_socketpair="unknown"
+ tst_compi_socketpair="unknown"
+ tst_allow_socketpair="unknown"
+ #
+ AC_MSG_CHECKING([if socketpair can be linked])
+ AC_LINK_IFELSE([
+ AC_LANG_FUNC_LINK_TRY([socketpair])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_links_socketpair="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_links_socketpair="no"
+ ])
+ #
+ if test "$tst_links_socketpair" = "yes"; then
+ AC_MSG_CHECKING([if socketpair is prototyped])
+ AC_EGREP_CPP([socketpair],[
+ $curl_includes_sys_socket
+ $curl_includes_socket
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_proto_socketpair="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_proto_socketpair="no"
+ ])
+ fi
+ #
+ if test "$tst_proto_socketpair" = "yes"; then
+ AC_MSG_CHECKING([if socketpair is compilable])
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+ $curl_includes_sys_socket
+ $curl_includes_socket
+ ]],[[
+ int sv[2];
+ if(0 != socketpair(0, 0, 0, sv))
+ return 1;
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_compi_socketpair="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_compi_socketpair="no"
+ ])
+ fi
+ #
+ if test "$tst_compi_socketpair" = "yes"; then
+ AC_MSG_CHECKING([if socketpair usage allowed])
+ if test "x$curl_disallow_socketpair" != "xyes"; then
+ AC_MSG_RESULT([yes])
+ tst_allow_socketpair="yes"
+ else
+ AC_MSG_RESULT([no])
+ tst_allow_socketpair="no"
+ fi
+ fi
+ #
+ AC_MSG_CHECKING([if socketpair might be used])
+ if test "$tst_links_socketpair" = "yes" &&
+ test "$tst_proto_socketpair" = "yes" &&
+ test "$tst_compi_socketpair" = "yes" &&
+ test "$tst_allow_socketpair" = "yes"; then
+ AC_MSG_RESULT([yes])
+ AC_DEFINE_UNQUOTED(HAVE_SOCKETPAIR, 1,
+ [Define to 1 if you have the socketpair function.])
+ ac_cv_func_socketpair="yes"
+ else
+ AC_MSG_RESULT([no])
+ ac_cv_func_socketpair="no"
+ fi
+])
+
+
dnl CURL_CHECK_FUNC_STRCASECMP
dnl -------------------------------------------------
dnl Verify if strcasecmp is available, prototyped, and