From 67f641e75b685abe1588b634b409c1ee2ff68c22 Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer
Date: Wed, 12 Apr 2006 18:24:37 +0000
Subject: - patch from Denis Vlasenko to add bb_xbind() and bb_xlisten()

---
 networking/dnsd.c       |  5 ++---
 networking/fakeidentd.c |  4 ++--
 networking/httpd.c      |  9 +++------
 networking/nc.c         |  7 ++-----
 networking/telnetd.c    | 10 ++--------
 networking/traceroute.c |  4 +---
 6 files changed, 12 insertions(+), 27 deletions(-)

(limited to 'networking')

diff --git a/networking/dnsd.c b/networking/dnsd.c
index d78ea04..b9d0221 100644
--- a/networking/dnsd.c
+++ b/networking/dnsd.c
@@ -216,9 +216,8 @@ listen_socket(char *iface_addr, int listen_port)
 	a.sin_family = AF_INET;
 	if (!inet_aton(iface_addr, &a.sin_addr))
 		bb_perror_msg_and_die("bad iface address");
-	if (bind(s, (struct sockaddr *)&a, sizeof(a)) < 0)
-		bb_perror_msg_and_die("bind() failed");
-	listen(s, 50);
+	bb_xbind(s, (struct sockaddr *)&a, sizeof(a));
+	listen(s, 50); /* bb_xlisten? */
 	sprintf(msg, "accepting UDP packets on addr:port %s:%d\n",
 		iface_addr, (int)listen_port);
 	log_message(LOG_FILE, msg);
diff --git a/networking/fakeidentd.c b/networking/fakeidentd.c
index 26efdcb..cae6b81 100644
--- a/networking/fakeidentd.c
+++ b/networking/fakeidentd.c
@@ -113,10 +113,10 @@ static void inetbind(void)
 	addr.sin_family = AF_INET;
 	addr.sin_port = htons(port);
 
-	if (bind(s, (struct sockaddr *)&addr, len) < 0)
+	if (bind(s, (struct sockaddr *)&addr, len) < 0) /* bb_xbind? */
 		bb_perror_msg_and_die("Cannot bind() port %i", IDENT_PORT);
 
-	if (listen(s, 5) < 0)
+	if (listen(s, 5) < 0) /* bb_xlisten? */
 		bb_perror_msg_and_die("Cannot listen() on port %i", IDENT_PORT);
 
 	movefd(s, 0);
diff --git a/networking/httpd.c b/networking/httpd.c
index 354c199..0f61741 100644
--- a/networking/httpd.c
+++ b/networking/httpd.c
@@ -958,12 +958,9 @@ static int openServer(void)
 #else
   setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on, sizeof(on)) ;
 #endif
-  if (bind(fd, (struct sockaddr *)&lsocket, sizeof(lsocket)) == 0) {
-    listen(fd, 9);
-    signal(SIGCHLD, SIG_IGN);   /* prevent zombie (defunct) processes */
-  } else {
-    bb_perror_msg_and_die("bind");
-  }
+  bb_xbind(fd, (struct sockaddr *)&lsocket, sizeof(lsocket));
+  listen(fd, 9); /* bb_xlisten? */
+  signal(SIGCHLD, SIG_IGN);   /* prevent zombie (defunct) processes */
   return fd;
 }
 #endif  /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
diff --git a/networking/nc.c b/networking/nc.c
index 86f0b99..57b0917 100644
--- a/networking/nc.c
+++ b/networking/nc.c
@@ -90,16 +90,13 @@ int nc_main(int argc, char **argv)
 		memset(&address.sin_addr, 0, sizeof(address.sin_addr));
 		address.sin_port = lport;
 
-		if (bind(sfd, (struct sockaddr *) &address, sizeof(address)) < 0)
-			bb_perror_msg_and_die("bind");
+		bb_xbind(sfd, (struct sockaddr *) &address, sizeof(address));
 	}
 
 	if (do_listen) {
 		socklen_t addrlen = sizeof(address);
 
-		if (listen(sfd, 1) < 0)
-			bb_perror_msg_and_die("listen");
-
+		bb_xlisten(sfd, 1);
 		if ((tmpfd = accept(sfd, (struct sockaddr *) &address, &addrlen)) < 0)
 			bb_perror_msg_and_die("accept");
 
diff --git a/networking/telnetd.c b/networking/telnetd.c
index d53f56b..1a53c0c 100644
--- a/networking/telnetd.c
+++ b/networking/telnetd.c
@@ -461,14 +461,8 @@ telnetd_main(int argc, char **argv)
 	sa.sin_addr = bind_addr;
 #endif
 
-	if (bind(master_fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
-		bb_perror_msg_and_die("bind");
-	}
-
-	if (listen(master_fd, 1) < 0) {
-		bb_perror_msg_and_die("listen");
-	}
-
+	bb_xbind(master_fd, (struct sockaddr *) &sa, sizeof(sa));
+	bb_xlisten(master_fd, 1);
 	bb_xdaemon(0, 0);
 
 	maxfd = master_fd;
diff --git a/networking/traceroute.c b/networking/traceroute.c
index 0abd904..4f7ebf1 100644
--- a/networking/traceroute.c
+++ b/networking/traceroute.c
@@ -1253,9 +1253,7 @@ traceroute_main(int argc, char *argv[])
 
 	outip->ip_src = from->sin_addr;
 #ifndef IP_HDRINCL
-	if (bind(sndsock, (struct sockaddr *)from, sizeof(*from)) < 0) {
-		bb_perror_msg_and_die("bind");
-	}
+	bb_xbind(sndsock, (struct sockaddr *)from, sizeof(*from));
 #endif
 
 	fprintf(stderr, "traceroute to %s (%s)", hostname, inet_ntoa(to->sin_addr));
-- 
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