diff options
| -rw-r--r-- | networking/route.c | 67 | ||||
| -rw-r--r-- | route.c | 67 |
2 files changed, 124 insertions, 10 deletions
diff --git a/networking/route.c b/networking/route.c index 76b2306..83a0be2 100644 --- a/networking/route.c +++ b/networking/route.c @@ -15,8 +15,9 @@ * Foundation; either version 2 of the License, or (at * your option) any later version. * - * $Id: route.c,v 1.1 2001/02/14 08:11:27 andersen Exp $ + * $Id: route.c,v 1.2 2001/02/14 19:26:39 andersen Exp $ * + * displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru> */ #include "busybox.h" @@ -343,6 +344,63 @@ INET_setroute(int action, int options, char **args) return (0); } +void displayroutes(void) +{ + char buff[256]; + int nl = 0 ; + struct in_addr dest; + struct in_addr gw; + struct in_addr mask; + int flgs, ref, use, metric; + char flags[4]; + unsigned long int d,g,m; + + char sdest[16], sgw[16]; + + + FILE *fp = fopen("/proc/net/route", "r"); + + if(fp==0) { + perror_msg_and_die("/proc/net/route"); + } + while( fgets(buff, sizeof(buff), fp) != NULL ) { + if(nl) { + int ifl = 0; + while(buff[ifl]!=' ' && buff[ifl]!='\t' && buff[ifl]!='\0') + ifl++; + buff[ifl]=0; /* interface */ + if(sscanf(buff+ifl+1, "%lx%lx%d%d%d%d%lx", + &d, &g, &flgs, &ref, &use, &metric, &m)!=7) { + error_msg_and_die( "Unsuported kernel route format\n"); + } + dest.s_addr = d; + gw.s_addr = g; + mask.s_addr = m; + if(nl==1) + printf("Kernel IP routing table\n\ +Destination\tGateway\t\tGenmask\t\tFlags Metric Ref Use Iface\n"); + + ifl = 0; /* parse flags */ + if(flgs&1) + flags[ifl++]='U'; + if(flgs&2) + flags[ifl++]='G'; + if(flgs&4) + flags[ifl++]='H'; + flags[ifl]=0; + strcpy(sdest, (dest.s_addr==0 ? "default" : + inet_ntoa(dest))); + strcpy(sgw, (gw.s_addr==0 ? "*" : + inet_ntoa(gw))); + printf("%-16s%-16s%-16s%-6s%-7d%-9d%-2d%s\n", + sdest, sgw, + inet_ntoa(mask), + flags, metric, ref, use, buff); + } + nl++; + } +} + int route_main(int argc, char **argv) { int what = 0; @@ -351,9 +409,8 @@ int route_main(int argc, char **argv) argv++; if (*argv == NULL) { - //displayroutes(); - fprintf(stderr, "print routes is not implemented yet\n"); - usage(route_usage); + displayroutes(); + exit(EXIT_SUCCESS); } else { /* check verb */ if (!strcmp(*argv, "add")) @@ -368,5 +425,5 @@ int route_main(int argc, char **argv) INET_setroute(what, 0, ++argv); - exit(0); + exit(EXIT_SUCCESS); } @@ -15,8 +15,9 @@ * Foundation; either version 2 of the License, or (at * your option) any later version. * - * $Id: route.c,v 1.1 2001/02/14 08:11:27 andersen Exp $ + * $Id: route.c,v 1.2 2001/02/14 19:26:39 andersen Exp $ * + * displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru> */ #include "busybox.h" @@ -343,6 +344,63 @@ INET_setroute(int action, int options, char **args) return (0); } +void displayroutes(void) +{ + char buff[256]; + int nl = 0 ; + struct in_addr dest; + struct in_addr gw; + struct in_addr mask; + int flgs, ref, use, metric; + char flags[4]; + unsigned long int d,g,m; + + char sdest[16], sgw[16]; + + + FILE *fp = fopen("/proc/net/route", "r"); + + if(fp==0) { + perror_msg_and_die("/proc/net/route"); + } + while( fgets(buff, sizeof(buff), fp) != NULL ) { + if(nl) { + int ifl = 0; + while(buff[ifl]!=' ' && buff[ifl]!='\t' && buff[ifl]!='\0') + ifl++; + buff[ifl]=0; /* interface */ + if(sscanf(buff+ifl+1, "%lx%lx%d%d%d%d%lx", + &d, &g, &flgs, &ref, &use, &metric, &m)!=7) { + error_msg_and_die( "Unsuported kernel route format\n"); + } + dest.s_addr = d; + gw.s_addr = g; + mask.s_addr = m; + if(nl==1) + printf("Kernel IP routing table\n\ +Destination\tGateway\t\tGenmask\t\tFlags Metric Ref Use Iface\n"); + + ifl = 0; /* parse flags */ + if(flgs&1) + flags[ifl++]='U'; + if(flgs&2) + flags[ifl++]='G'; + if(flgs&4) + flags[ifl++]='H'; + flags[ifl]=0; + strcpy(sdest, (dest.s_addr==0 ? "default" : + inet_ntoa(dest))); + strcpy(sgw, (gw.s_addr==0 ? "*" : + inet_ntoa(gw))); + printf("%-16s%-16s%-16s%-6s%-7d%-9d%-2d%s\n", + sdest, sgw, + inet_ntoa(mask), + flags, metric, ref, use, buff); + } + nl++; + } +} + int route_main(int argc, char **argv) { int what = 0; @@ -351,9 +409,8 @@ int route_main(int argc, char **argv) argv++; if (*argv == NULL) { - //displayroutes(); - fprintf(stderr, "print routes is not implemented yet\n"); - usage(route_usage); + displayroutes(); + exit(EXIT_SUCCESS); } else { /* check verb */ if (!strcmp(*argv, "add")) @@ -368,5 +425,5 @@ int route_main(int argc, char **argv) INET_setroute(what, 0, ++argv); - exit(0); + exit(EXIT_SUCCESS); } |