5 files changed, 109 insertions, 0 deletions

diff --git a/net/socketbind/Makefile b/net/socketbind/Makefile
new file mode 100644
index 000000000000..6652b81aa033
--- /dev/null
+++ b/net/socketbind/Makefile
@@ -0,0 +1,37 @@
+# New ports collection makefile for:    socketbind
+# Date created:         		20 Mar 2003
+# Whom:                 		Gaspar Chilingarov <nm@web.am>
+#
+# $FreeBSD$
+#
+
+PORTNAME=	socketbind
+PORTVERSION=	1
+CATEGORIES=	net
+MASTER_SITES=	# none
+DISTFILES=	# none
+
+MAINTAINER=	nm@web.am
+COMMENT=	Library to bind applications on multihomed machines to specefic IP address
+
+INSTALLS_SHLIB=	YES
+NOMAN=		YES
+INSTALL_TARGET=
+PLIST_SUB=	"DOCSDIR=share/doc/${PORTNAME}"
+
+post-extract:
+	${MKDIR} ${WRKSRC}
+	${CP} -R ${PATCHDIR}/ ${WRKSRC}
+
+pre-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/libsocketbind.so.1 ${PREFIX}/lib
+	${LN} -s ${PREFIX}/lib/libsocketbind.so.1 ${PREFIX}/lib/libsocketbind.so
+	${MKDIR} ${DOCSDIR}
+	${ECHO} "This library allows to bind arbitrary program, " >> ${DOCSDIR}/README
+	${ECHO} "which is dynamically linked to libc.so." >> ${DOCSDIR}/README
+	${ECHO} "Load library before your program (set environment " >> ${DOCSDIR}/README
+	${ECHO} "variable LD_PRELOAD=${PREFIX}/lib/libsocketbind.so.1) " >> ${DOCSDIR}/README
+	${ECHO} "and set address to bind to (set environment variable " >> ${DOCSDIR}/README
+	${ECHO} "BINDTO=ip address to bind)" >> ${DOCSDIR}/README
+
+.include <bsd.port.mk>
diff --git a/net/socketbind/files/Makefile b/net/socketbind/files/Makefile
new file mode 100644
index 000000000000..fa3232ac9c11
--- /dev/null
+++ b/net/socketbind/files/Makefile
@@ -0,0 +1,11 @@
+# $FreeBSD$
+LIB=socketbind
+SHLIB_MAJOR=1
+
+DESTDIR=/usr/local
+SRCS=socketbind.c
+NOMAN=YES
+#DEBUG_FLAGS=-DDEBUG
+
+
+.include <bsd.lib.mk>
diff --git a/net/socketbind/files/socketbind.c b/net/socketbind/files/socketbind.c
new file mode 100644
index 000000000000..51d929d9b794
--- /dev/null
+++ b/net/socketbind/files/socketbind.c
@@ -0,0 +1,46 @@
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <dlfcn.h>
+
+static void *socket_p, *dl_handle;
+
+static struct sockaddr_in bind_addr;
+static int	   do_bind;
+
+int socket(int domain, int type, int protocol) {
+	auto int res;
+	if (dl_handle == NULL) {
+		char *str;
+		dl_handle = dlopen("/usr/lib/libc.so", RTLD_LAZY);
+		if (dl_handle == NULL) 
+			return -1;
+		socket_p = dlsym(dl_handle, "socket");
+		if (!socket_p)
+			return -1;
+#ifdef DEBUG
+		printf("Loaded socket %x\n", socket_p);
+#endif
+
+		if ((str = getenv("BINDTO")) != NULL) {
+#ifdef DEBUG
+			printf("Thinking about bind\n");
+#endif
+			if (ascii2addr(AF_INET, str, &bind_addr.sin_addr)) {
+				do_bind = 1;
+				bind_addr.sin_len = INET_ADDRSTRLEN;
+				bind_addr.sin_family = AF_INET;
+#ifdef DEBUG
+				printf("WILL DO BIND %s, %x\n", str, bind_addr.sin_addr.s_addr);
+#endif
+			}
+		}
+	}
+	res = ((int(*)(int a, int b, int c))socket_p)(domain, type, protocol); 
+	if (do_bind) {
+		bind(res, (struct sockaddr*)&bind_addr, INET_ADDRSTRLEN);
+	}
+	return res;
+};
+
diff --git a/net/socketbind/pkg-descr b/net/socketbind/pkg-descr
new file mode 100644
index 000000000000..29558cecb0e6
--- /dev/null
+++ b/net/socketbind/pkg-descr
@@ -0,0 +1,11 @@
+This library allows you to bind any application which is dynamically linked
+with libc. It provides convient way to bind socket's source IP to one of the
+multiple IP's available on computer.
+
+To use it first of all point LD_PRELOAD to installed library and set BINDTO
+variable to desired IP address to bind.
+
+Here is the wrapper to run any command binded to some IP address:
+env LD_PRELOAD=/usr/local/lib/libsocketbind.so.1 BINDTO=$MY_IP_ADDRESS $*
+
+Author can be reached at "nm at web dot am" address.
diff --git a/net/socketbind/pkg-plist b/net/socketbind/pkg-plist
new file mode 100644
index 000000000000..550ede79f431
--- /dev/null
+++ b/net/socketbind/pkg-plist
@@ -0,0 +1,4 @@
+lib/libsocketbind.so.1
+lib/libsocketbind.so
+%%DOCSDIR%%/README
+@dirrm %%DOCSDIR%%