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