Latest patch from vodz:

    -- reverse resolve network name and cache in route and ifconfig
	applets, fix print nslookup server name if compile without
	uClibc, fix route crashe 'route add', fix warnings compile
	networking and pwd_grp applets

1 files changed, 29 insertions, 40 deletions

diff --git a/networking/route.c b/networking/route.c
index ee3533100..43180296d 100644
--- a/networking/route.c
+++ b/networking/route.c
@@ -15,7 +15,7 @@
  * Foundation;  either  version 2 of the License, or  (at
  * your option) any later version.
  *
- * $Id: route.c,v 1.13 2001/09/05 19:32:00 andersen Exp $
+ * $Id: route.c,v 1.14 2001/11/10 11:22:43 andersen Exp $
  *
  * displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru>
  * adjustments by Larry Doolittle  <LRDoolittle@lbl.gov>
@@ -23,11 +23,9 @@
 
 #include <sys/types.h>
 #include <sys/ioctl.h>
-#include <sys/socket.h>
+#include "inet_common.h"
 #include <net/route.h>
 #include <linux/param.h>  // HZ
-#include <netinet/in.h>
-#include <arpa/inet.h>
 #include <stdio.h>
 #include <errno.h>
 #include <fcntl.h>
@@ -55,29 +53,6 @@
 #define E_INTERN        2
 #define E_NOSUPP        1
 
-/* resolve XXX.YYY.ZZZ.QQQ -> binary */
-
-static int
-INET_resolve(char *name, struct sockaddr *sa)
-{
-	struct sockaddr_in *s_in = (struct sockaddr_in *)sa;
-
-	s_in->sin_family = AF_INET;
-	s_in->sin_port = 0;
-
-	/* Default is special, meaning 0.0.0.0. */
-	if (strcmp(name, "default")==0) {
-		s_in->sin_addr.s_addr = INADDR_ANY;
-		return 1;
-	}
-	/* Look to see if it's a dotted quad. */
-	if (inet_aton(name, &s_in->sin_addr)) {
-		return 0;
-	}
-	/* guess not.. */
-	return -1;
-}
-
 #if defined (SIOCADDRTOLD) || defined (RTF_IRTT)        /* route */
 #define HAVE_NEW_ADDRT 1
 #endif
@@ -96,13 +71,16 @@ INET_resolve(char *name, struct sockaddr *sa)
 #define full_mask(x) (((struct sockaddr_in *)&(x))->sin_addr.s_addr)
 #endif
 
+
+
 /* add or delete a route depending on action */
 
 static int
 INET_setroute(int action, int options, char **args)
 {
 	struct rtentry rt;
-	char target[128], gateway[128] = "NONE", netmask[128] = "default";
+	char target[128], gateway[128] = "NONE";
+	const char *netmask = bb_INET_default;
 	int xflag, isnet;
 	int skfd;
 
@@ -117,13 +95,15 @@ INET_setroute(int action, int options, char **args)
 		xflag = 2;
 		args++;
 	}
+	if (*args == NULL)
+	    show_usage();
 	safe_strncpy(target, *args++, (sizeof target));
 
 	/* Clean out the RTREQ structure. */
 	memset((char *) &rt, 0, sizeof(struct rtentry));
 
 
-	if ((isnet = INET_resolve(target, &rt.rt_dst)) < 0) {
+	if ((isnet = INET_resolve(target, (struct sockaddr_in *)&rt.rt_dst, xflag!=1)) < 0) {
 		error_msg(_("can't resolve %s"), target);
 		return EXIT_FAILURE;   /* XXX change to E_something */
 	}
@@ -169,8 +149,8 @@ INET_setroute(int action, int options, char **args)
 			args++;
 			if (!*args || mask_in_addr(rt))
 				show_usage();
-			safe_strncpy(netmask, *args, (sizeof netmask));
-			if ((isnet = INET_resolve(netmask, &mask)) < 0) {
+			netmask = *args;
+			if ((isnet = INET_resolve(netmask, (struct sockaddr_in *)&mask, 0)) < 0) {
 				error_msg(_("can't resolve netmask %s"), netmask);
 				return E_LOOKUP;
 			}
@@ -186,7 +166,7 @@ INET_setroute(int action, int options, char **args)
 			if (rt.rt_flags & RTF_GATEWAY)
 				show_usage();
 			safe_strncpy(gateway, *args, (sizeof gateway));
-			if ((isnet = INET_resolve(gateway, &rt.rt_gateway)) < 0) {
+			if ((isnet = INET_resolve(gateway, (struct sockaddr_in *)&rt.rt_gateway, 1)) < 0) {
 				error_msg(_("can't resolve gw %s"), gateway);
 				return E_LOOKUP;
 			}
@@ -362,7 +342,7 @@ INET_setroute(int action, int options, char **args)
 #define RTF_REJECT      0x0200          /* Reject route                 */
 #endif
 
-static void displayroutes(void)
+static void displayroutes(int noresolve)
 {
 	char buff[256];
 	int  nl = 0 ;
@@ -375,12 +355,17 @@ static void displayroutes(void)
 
 	char sdest[16], sgw[16];
 
-
 	FILE *fp = xfopen("/proc/net/route", "r");
 
+	if(noresolve)
+		noresolve = 0x0fff;
+
 	while( fgets(buff, sizeof(buff), fp) != NULL ) {
 		if(nl) {
 			int ifl = 0;
+			int numeric;
+			struct sockaddr_in s_addr;
+
 			while(buff[ifl]!=' ' && buff[ifl]!='\t' && buff[ifl]!='\0')
 				ifl++;
 			buff[ifl]=0;    /* interface */
@@ -412,10 +397,14 @@ static void displayroutes(void)
  				dest.s_addr = d;
  				gw.s_addr   = g;
  				mask.s_addr = m;
- 				strcpy(sdest,  (dest.s_addr==0 ? "default" :
-  					inet_ntoa(dest)));
- 				strcpy(sgw,    (gw.s_addr==0   ? "*"       :
-  					inet_ntoa(gw)));
+				memset(&s_addr, 0, sizeof(struct sockaddr_in));
+				s_addr.sin_family = AF_INET;
+				s_addr.sin_addr = dest;
+				numeric = noresolve | 0x8000; /* default instead of * */
+				INET_rresolve(sdest, sizeof(sdest), &s_addr, numeric, m);
+				numeric = noresolve | 0x4000; /* host instead of net */
+				s_addr.sin_addr = gw;
+				INET_rresolve(sgw, sizeof(sgw), &s_addr, numeric, m);
  				printf("%-16s%-16s%-16s%-6s%-6d %-2d %7d %s\n",
  					sdest, sgw,
  					inet_ntoa(mask),
@@ -433,8 +422,8 @@ int route_main(int argc, char **argv)
 	argc--;
 	argv++;
 
-	if (*argv == NULL) {
-		displayroutes();
+	if (*argv == NULL || (*(argv+1)==NULL && strcmp(*argv, "-n")==0)) {
+		displayroutes(*argv != NULL);
 		return EXIT_SUCCESS;
 	} else {
 		/* check verb */