Revert "Remove netcfg's unused options."
This reverts commit f8e83054cb8a8b13ee84a4aeeaa0a2fd8debca81.
Change-Id: Iede772f96ff9008277df433dcbb5f6603de65283
diff --git a/netcfg/netcfg.c b/netcfg/netcfg.c
index eec1b2f..204bf1d 100644
--- a/netcfg/netcfg.c
+++ b/netcfg/netcfg.c
@@ -24,7 +24,13 @@
#include <stdlib.h>
#include <string.h>
-static const char *ipaddr(in_addr_t addr)
+void die(const char *reason)
+{
+ perror(reason);
+ exit(1);
+}
+
+const char *ipaddr(in_addr_t addr)
{
struct in_addr in_addr;
@@ -32,13 +38,13 @@
return inet_ntoa(in_addr);
}
-static void usage(void)
+void usage(void)
{
- fprintf(stderr,"usage: netcfg [<interface> dhcp]\n");
+ fprintf(stderr,"usage: netcfg [<interface> {dhcp|up|down}]\n");
exit(1);
}
-static int dump_interface(const char *name)
+int dump_interface(const char *name)
{
unsigned addr, flags;
unsigned char hwbuf[ETH_ALEN];
@@ -63,7 +69,7 @@
return 0;
}
-static int dump_interfaces(void)
+int dump_interfaces(void)
{
DIR *d;
struct dirent *de;
@@ -79,11 +85,56 @@
return 0;
}
+int set_hwaddr(const char *name, const char *asc) {
+ struct ether_addr *addr = ether_aton(asc);
+ if (!addr) {
+ printf("Failed to parse '%s'\n", asc);
+ return -1;
+ }
+ return ifc_set_hwaddr(name, addr->ether_addr_octet);
+}
+
+struct
+{
+ const char *name;
+ int nargs;
+ void *func;
+} CMDS[] = {
+ { "dhcp", 1, do_dhcp },
+ { "up", 1, ifc_up },
+ { "down", 1, ifc_down },
+ { "deldefault", 1, ifc_remove_default_route },
+ { "hwaddr", 2, set_hwaddr },
+ { 0, 0, 0 },
+};
+
+static int call_func(void *_func, unsigned nargs, char **args)
+{
+ switch(nargs){
+ case 1: {
+ int (*func)(char *a0) = _func;
+ return func(args[0]);
+ }
+ case 2: {
+ int (*func)(char *a0, char *a1) = _func;
+ return func(args[0], args[1]);
+ }
+ case 3: {
+ int (*func)(char *a0, char *a1, char *a2) = _func;
+ return func(args[0], args[1], args[2]);
+ }
+ default:
+ return -1;
+ }
+}
+
int main(int argc, char **argv)
{
+ char *iname;
+ int n;
+
if(ifc_init()) {
- perror("Cannot perform requested operation");
- exit(1);
+ die("Cannot perform requested operation");
}
if(argc == 1) {
@@ -92,23 +143,41 @@
return result;
}
- if(argc != 3) usage();
+ if(argc < 3) usage();
- char* iname = argv[1];
- char* action = argv[2];
+ iname = argv[1];
if(strlen(iname) > 16) usage();
- if (!strcmp(action, "dhcp")) {
- if (do_dhcp(iname)) {
- fprintf(stderr, "dhcp failed: %s\n", strerror(errno));
- ifc_close();
- exit(1);
+ argc -= 2;
+ argv += 2;
+ while(argc > 0) {
+ for(n = 0; CMDS[n].name; n++){
+ if(!strcmp(argv[0], CMDS[n].name)) {
+ char *cmdname = argv[0];
+ int nargs = CMDS[n].nargs;
+
+ argv[0] = iname;
+ if(argc < nargs) {
+ fprintf(stderr, "not enough arguments for '%s'\n", cmdname);
+ ifc_close();
+ exit(1);
+ }
+ if(call_func(CMDS[n].func, nargs, argv)) {
+ fprintf(stderr, "action '%s' failed (%s)\n", cmdname, strerror(errno));
+ ifc_close();
+ exit(1);
+ }
+ argc -= nargs;
+ argv += nargs;
+ goto done;
+ }
}
- } else {
- fprintf(stderr,"no such action '%s'\n", action);
+ fprintf(stderr,"no such action '%s'\n", argv[0]);
usage();
+ done:
+ ;
}
-
ifc_close();
+
return 0;
}