build with new libnet, patch from OpenSuSE 11

package/rarpd/Makefile

@@ -5,7 +5,7 @@ include ${TOPDIR}/rules.mk
 
 PKG_NAME:=		rarpd
 PKG_VERSION:=		1.1
-PKG_RELEASE:=		10
+PKG_RELEASE:=		11
 PKG_MD5SUM:=		04e2ca849e758d0b88c8281775ec3b58
 PKG_DESCR:=		Reverse ARP Daemon
 PKG_SECTION:=		net

package/rarpd/patches/patch-rarpd_c

@@ -0,0 +1,142 @@
+--- rarpd-1.1.orig/rarpd.c	1999-11-17 01:51:22.000000000 +0100
++++ rarpd-1.1/rarpd.c	2009-12-11 14:28:32.000000000 +0100
+@@ -65,18 +65,12 @@
+ #define ETHERSTRLEN       sizeof("00:00:00:00:00:00")
+ #define IPSTRLEN          sizeof(".xxx.xxx.xxx.xxx")
+ 
+-#ifdef NEW_LIBNET_INTERFACE
+-#define open_link_interface libnet_open_link_interface
+-#define link_int libnet_link_int 
+-#define build_arp libnet_build_arp 
+-#define get_ipaddr libnet_get_ipaddr
+-#define get_hwaddr libnet_get_hwaddr
+-#define build_ethernet libnet_build_ethernet
+-#define write_link_layer libnet_write_link_layer
+-
+-/* Temporary workaround */
+-#define ARP_H LIBNET_ARP_H
+-#endif
++struct _ipv4_arp_data_ {
++  u_char ar_sha[6];                         /* sender hardware address */
++  u_char ar_spa[4];                         /* sender protocol address */
++  u_char ar_tha[6];                         /* target hardware address */
++  u_char ar_tpa[4];                         /* target protocol address */
++};
+ 
+ extern char pcap_version[];
+ extern int optind;
+@@ -88,7 +82,7 @@ static int vflag;                      /
+ static char *program_name;
+ 
+ static pcap_t *pd;
+-static struct link_int *ln;
++static libnet_t *ld;
+ static char *device, *ethers;
+ struct in_addr my_ipaddr;
+ static u_char my_hwaddr[ETHERADDRLEN];
+@@ -285,23 +279,34 @@ void set_arp(struct in_addr *herip, unsi
+ void send_rarpreply(unsigned char *dest_hwaddr,
+                     unsigned char *her_hwaddr, struct in_addr *her_ipaddr)
+ {
+-  char ebuf[PCAP_ERRBUF_SIZE];
+-  u_char buf[ARP_H+ETH_H];
+-
+-  memset(buf, 0, ARP_H + ETH_H);
+-
+-  /* Ethernet header */
+-  build_ethernet(dest_hwaddr, my_hwaddr, ETHERTYPE_REVARP, NULL, 0, buf);
++  int c;
++  libnet_ptag_t t;
+ 
+   /* ARP header */
+-  build_arp(ARPHRD_ETHER, ETHERTYPE_IP,
++  t = libnet_build_arp(ARPHRD_ETHER, ETHERTYPE_IP,
+             ETHERADDRLEN, IPADDRLEN,
+             ARPOP_REVREPLY,
+             my_hwaddr, (u_char *)&(my_ipaddr.s_addr),
+             her_hwaddr, (u_char *)&(her_ipaddr->s_addr),
+-            NULL, 0, buf + ETH_H);
++            NULL, 0, ld, 0);
++  if (t == -1) {
++    syslog(LOG_ERR, "%s: Can't build ARP header: %s", program_name, libnet_geterror(ld));
++    exit(1);
++  }
+ 
+-  write_link_layer(ln, (const u_char *)device, buf, ARP_H + ETH_H);
++  /* Ethernet header */
++  t = libnet_build_ethernet(dest_hwaddr, my_hwaddr, ETHERTYPE_REVARP, NULL, 0, ld, 0);
++  if (t == -1) {
++    syslog(LOG_ERR, "%s: Can't build ethernet header: %s", program_name,
++            libnet_geterror(ld));
++    exit(1);
++  }
++
++  c = libnet_write(ld);
++  if (c == -1) {
++    syslog(LOG_ERR, "%s: Write error: %s", program_name, libnet_geterror(ld));
++    exit(1);
++  }
+ }
+ 
+ 
+@@ -314,11 +319,13 @@ void process_arp(u_char *user, const str
+   unsigned short pro, hrd, op;
+   struct in_addr her_ipaddr;
+   struct libnet_arp_hdr *ap;
++  struct _ipv4_arp_data_ *ad;
+   struct hostent *hp;
+   char *ipp;
+ 
+   bp += sizeof(struct libnet_ethernet_hdr);
+   ap = (struct libnet_arp_hdr *)bp;
++  ad = (struct _ipv4_arp_data_ *)(bp + sizeof(*ap));
+ 
+   pro = EXTRACT_16BITS (&ap->ar_pro);
+   hrd = EXTRACT_16BITS (&ap->ar_hrd);
+@@ -331,10 +338,10 @@ void process_arp(u_char *user, const str
+   /* We only answer RARP requests */
+   if (op != ARPOP_REVREQUEST) return;
+ 
+-  sha = ap->ar_sha;
+-  spa = ap->ar_spa;
+-  tha = ap->ar_tha;
+-  tpa = ap->ar_tpa;
++  sha = ad->ar_sha;
++  spa = ad->ar_spa;
++  tha = ad->ar_tha;
++  tpa = ad->ar_tpa;
+ 
+   if (my_ether_ntohost(toret, tha)) {
+     if (vflag) {
+@@ -399,6 +406,7 @@ int main(int argc, char **argv)
+   int nofork, op, pid, syslogflags;
+   bpf_u_int32 localnet, netmask;
+   char ebuf[PCAP_ERRBUF_SIZE];
++  char errbuf[LIBNET_ERRBUF_SIZE];
+   char *cmdbuf;
+   struct bpf_program fcode;
+ 
+@@ -446,9 +454,9 @@ int main(int argc, char **argv)
+     }
+   }
+ 
+-  ln = open_link_interface(device, ebuf);
+-  if (ln == NULL) {
+-    syslog(LOG_ERR, "%s: %s", program_name, ebuf);
++  ld = libnet_init(LIBNET_LINK, device, errbuf);
++  if (ld == NULL) {
++    syslog(LOG_ERR, "%s: %s", program_name, errbuf);
+     exit(1);
+   }
+ 
+@@ -465,8 +473,8 @@ int main(int argc, char **argv)
+   }
+ 
+   memset(&my_ipaddr, 0, sizeof(my_ipaddr));
+-  my_ipaddr.s_addr = htonl(get_ipaddr(ln, device, ebuf));
+-  memcpy(my_hwaddr, (char *)get_hwaddr(ln, device, ebuf), ETHERADDRLEN);
++  my_ipaddr.s_addr = libnet_get_ipaddr4(ld);
++  memcpy(my_hwaddr, (char *) libnet_get_hwaddr(ld), ETHERADDRLEN);
+ 
+   setuid(getuid());
+