diff options
Diffstat (limited to 'networking/route.c')
| -rw-r--r-- | networking/route.c | 69 |
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 */ |