- spelling

[oweals/busybox.git] / networking / ifconfig.c

diff --git a/networking/ifconfig.c b/networking/ifconfig.c
index 9fdab3c3f31c04f6eb60f326fdfb3e1d187db411..7b358c43f06c500121264220cfc2b65a1b28f592 100644 (file)
--- a/networking/ifconfig.c
+++ b/networking/ifconfig.c
@@ -1,3 +1,4 @@
+/* vi: set sw=4 ts=4: */
 /* ifconfig
  *
  * Similar to the standard Unix ifconfig, but with only the necessary
@@ -6,17 +7,10 @@
  * Bjorn Wesen, Axis Communications AB
  *
  *
- * Authors of the original ifconfig was:      
+ * Authors of the original ifconfig was:
  *              Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
  *
- * This program is free software; you can redistribute it
- * and/or  modify it under  the terms of  the GNU General
- * Public  License as  published  by  the  Free  Software
- * Foundation;  either  version 2 of the License, or  (at
- * your option) any later version.
- *
- * $Id: ifconfig.c,v 1.27 2003/11/14 03:04:08 andersen Exp $
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 /*
@@ -37,6 +31,8 @@
 #include <string.h>            /* strcmp and friends */
 #include <ctype.h>             /* isdigit and friends */
 #include <stddef.h>            /* offsetof */
+#include <unistd.h>
+#include <netdb.h>
 #include <sys/ioctl.h>
 #include <net/if.h>
 #include <net/if_arp.h>
@@ -45,8 +41,8 @@
 #include <netpacket/packet.h>
 #include <net/ethernet.h>
 #else
-#include <asm/types.h>
-#include <linux/if_ether.h>
+#include <sys/types.h>
+#include <netinet/if_ether.h>
 #endif
 #include "inet_common.h"
 #include "busybox.h"
@@ -176,7 +172,7 @@ struct in6_ifreq {
 
 struct arg1opt {
        const char *name;
-       unsigned short selector;
+       int selector;
        unsigned short ifr_offset;
 };
 
@@ -333,9 +329,7 @@ int ifconfig_main(int argc, char **argv)
        }
 
        /* Create a channel to the NET kernel. */
-       if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
-               bb_perror_msg_and_die("socket");
-       }
+       sockfd = bb_xsocket(AF_INET, SOCK_DGRAM, 0);
 
        /* get interface name */
        safe_strncpy(ifr.ifr_name, *argv, IFNAMSIZ);
@@ -351,7 +345,7 @@ int ifconfig_main(int argc, char **argv)
                for (op = OptArray; op->name; op++) {   /* Find table entry. */
                        if (strcmp(p, op->name) == 0) { /* If name matches... */
                                if ((mask &= op->flags)) {      /* set the mask and go. */
-                                       goto FOUND_ARG;;
+                                       goto FOUND_ARG;
                                }
                                /* If we get here, there was a valid arg with an */
                                /* invalid '-' prefix. */
@@ -394,8 +388,9 @@ int ifconfig_main(int argc, char **argv)
                                                safe_strncpy(host, *argv, (sizeof host));
 #ifdef CONFIG_FEATURE_IPV6
                                                if ((prefix = strchr(host, '/'))) {
-                                                       prefix_len = atol(prefix + 1);
-                                                       if ((prefix_len < 0) || (prefix_len > 128)) {
+                                                       if (safe_strtoi(prefix + 1, &prefix_len) ||
+                                                               (prefix_len < 0) || (prefix_len > 128))
+                                                       {
                                                                ++goterr;
                                                                goto LOOP;
                                                        }
@@ -442,8 +437,13 @@ int ifconfig_main(int argc, char **argv)
 #endif
                                                } else if (inet_aton(host, &sai.sin_addr) == 0) {
                                                        /* It's not a dotted quad. */
-                                                       ++goterr;
-                                                       continue;
+                                                       struct hostent *hp;
+                                                       if ((hp = gethostbyname(host)) == (struct hostent *)NULL) {
+                                                               ++goterr;
+                                                               continue;
+                                                       }
+                                                       memcpy((char *) &sai.sin_addr, (char *) hp->h_addr_list[0],
+                                                       sizeof(struct in_addr));
                                                }
 #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS
                                                if (mask & A_HOSTNAME) {
@@ -472,7 +472,7 @@ int ifconfig_main(int argc, char **argv)
                                        memcpy((((char *) (&ifr)) + a1op->ifr_offset),
                                                   p, sizeof(struct sockaddr));
                                } else {
-                                       unsigned int i = strtoul(*argv, NULL, 0);
+                                       unsigned long i = strtoul(*argv, NULL, 0);
 
                                        p = ((char *) (&ifr)) + a1op->ifr_offset;
 #ifdef CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
@@ -509,7 +509,7 @@ int ifconfig_main(int argc, char **argv)
                                         * a - at the end, since it's deleted already! - Roman
                                         *
                                         * Should really use regex.h here, not sure though how well
-                                        * it'll go with the cross-platform support etc. 
+                                        * it'll go with the cross-platform support etc.
                                         */
                                        char *ptr;
                                        short int found_colon = 0;
@@ -551,6 +551,7 @@ int ifconfig_main(int argc, char **argv)
                continue;
        }                                       /* end of while-loop */
 
+       if (ENABLE_FEATURE_CLEAN_UP) close(sockfd);
        return goterr;
 }
 
@@ -558,7 +559,7 @@ int ifconfig_main(int argc, char **argv)
 /* Input an Ethernet address and convert to binary. */
 static int in_ether(char *bufp, struct sockaddr *sap)
 {
-       unsigned char *ptr;
+       char *ptr;
        int i, j;
        unsigned char val;
        unsigned char c;