remove in place of external link

1 files changed, 0 insertions, 106 deletions

diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c
deleted file mode 100644
index 4831d43..0000000
--- a/networking/udhcp/arpping.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * arpping.c
- *
- * Mostly stolen from: dhcpcd - DHCP client daemon
- * by Yoichi Hariguchi <yoichi@fore.com>
- */
-
-#include <sys/time.h>
-#include <time.h>
-#include <sys/socket.h>
-#include <netinet/if_ether.h>
-#include <net/if_arp.h>
-#include <netinet/in.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "dhcpd.h"
-#include "arpping.h"
-#include "common.h"
-
-/* args:	yiaddr - what IP to ping
- *		ip - our ip
- *		mac - our arp address
- *		interface - interface to use
- * retn:	1 addr free
- *		0 addr used
- *		-1 error
- */
-
-/* FIXME: match response against chaddr */
-int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *mac, char *interface)
-{
-
-	int	timeout = 2;
-	int	optval = 1;
-	int	s;			/* socket */
-	int	rv = 1;			/* return value */
-	struct sockaddr addr;		/* for interface name */
-	struct arpMsg	arp;
-	fd_set		fdset;
-	struct timeval	tm;
-	time_t		prevTime;
-
-
-	if ((s = socket (PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP))) == -1) {
-#ifdef IN_BUSYBOX
-		LOG(LOG_ERR, bb_msg_can_not_create_raw_socket);
-#else
-		LOG(LOG_ERR, "Could not open raw socket");
-#endif
-		return -1;
-	}
-
-	if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &optval, sizeof(optval)) == -1) {
-		LOG(LOG_ERR, "Could not setsocketopt on raw socket");
-		close(s);
-		return -1;
-	}
-
-	/* send arp request */
-	memset(&arp, 0, sizeof(arp));
-	memcpy(arp.h_dest, MAC_BCAST_ADDR, 6);		/* MAC DA */
-	memcpy(arp.h_source, mac, 6);			/* MAC SA */
-	arp.h_proto = htons(ETH_P_ARP);			/* protocol type (Ethernet) */
-	arp.htype = htons(ARPHRD_ETHER);		/* hardware type */
-	arp.ptype = htons(ETH_P_IP);			/* protocol type (ARP message) */
-	arp.hlen = 6;					/* hardware address length */
-	arp.plen = 4;					/* protocol address length */
-	arp.operation = htons(ARPOP_REQUEST);		/* ARP op code */
-	memcpy(arp.sInaddr, &ip, sizeof(ip));		/* source IP address */
-	memcpy(arp.sHaddr, mac, 6);			/* source hardware address */
-	memcpy(arp.tInaddr, &yiaddr, sizeof(yiaddr));	/* target IP address */
-
-	memset(&addr, 0, sizeof(addr));
-	strcpy(addr.sa_data, interface);
-	if (sendto(s, &arp, sizeof(arp), 0, &addr, sizeof(addr)) < 0)
-		rv = 0;
-
-	/* wait arp reply, and check it */
-	tm.tv_usec = 0;
-	prevTime = uptime();
-	while (timeout > 0) {
-		FD_ZERO(&fdset);
-		FD_SET(s, &fdset);
-		tm.tv_sec = timeout;
-		if (select(s + 1, &fdset, (fd_set *) NULL, (fd_set *) NULL, &tm) < 0) {
-			DEBUG(LOG_ERR, "Error on ARPING request: %m");
-			if (errno != EINTR) rv = 0;
-		} else if (FD_ISSET(s, &fdset)) {
-			if (recv(s, &arp, sizeof(arp), 0) < 0 ) rv = 0;
-			if (arp.operation == htons(ARPOP_REPLY) &&
-			    bcmp(arp.tHaddr, mac, 6) == 0 &&
-			    *((uint32_t *) arp.sInaddr) == yiaddr) {
-				DEBUG(LOG_INFO, "Valid arp reply receved for this address");
-				rv = 0;
-				break;
-			}
-		}
-		timeout -= uptime() - prevTime;
-		prevTime = uptime();
-	}
-	close(s);
-	DEBUG(LOG_INFO, "%salid arp replies for this address", rv ? "No v" : "V");
-	return rv;
-}