+/* vi: set sw=4 ts=4: */
/*
* socket.c -- DHCP server client/server socket creation
*
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <netinet/in.h>
-#include <unistd.h>
-#include <string.h>
-#include <arpa/inet.h>
#include <net/if.h>
-#include <errno.h>
#include <features.h>
-#if __GLIBC__ >=2 && __GLIBC_MINOR >= 1
+#if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined _NEWLIB_VERSION
#include <netpacket/packet.h>
#include <net/ethernet.h>
#else
#include "common.h"
-int read_interface(char *interface, int *ifindex, u_int32_t *addr, unsigned char *arp)
+
+int read_interface(char *interface, int *ifindex, uint32_t *addr, uint8_t *arp)
{
int fd;
struct ifreq ifr;
struct sockaddr_in *our_ip;
memset(&ifr, 0, sizeof(struct ifreq));
- if((fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) >= 0) {
- ifr.ifr_addr.sa_family = AF_INET;
- strcpy(ifr.ifr_name, interface);
-
- if (addr) {
- if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
- our_ip = (struct sockaddr_in *) &ifr.ifr_addr;
- *addr = our_ip->sin_addr.s_addr;
- DEBUG(LOG_INFO, "%s (our ip) = %s", ifr.ifr_name, inet_ntoa(our_ip->sin_addr));
- } else {
- LOG(LOG_ERR, "SIOCGIFADDR failed, is the interface up and configured?: %m");
- return -1;
- }
+ fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
+ if (fd < 0) {
+ bb_perror_msg("socket failed");
+ return -1;
+ }
+
+ ifr.ifr_addr.sa_family = AF_INET;
+ strncpy(ifr.ifr_name, interface, sizeof(ifr.ifr_name));
+ if (addr) {
+ if (ioctl(fd, SIOCGIFADDR, &ifr) != 0) {
+ bb_perror_msg("SIOCGIFADDR failed, is the interface up and configured?");
+ close(fd);
+ return -1;
}
-
- if (ioctl(fd, SIOCGIFINDEX, &ifr) == 0) {
- DEBUG(LOG_INFO, "adapter index %d", ifr.ifr_ifindex);
- *ifindex = ifr.ifr_ifindex;
- } else {
- LOG(LOG_ERR, "SIOCGIFINDEX failed!: %m");
+ our_ip = (struct sockaddr_in *) &ifr.ifr_addr;
+ *addr = our_ip->sin_addr.s_addr;
+ DEBUG("%s (our ip) = %s", ifr.ifr_name, inet_ntoa(our_ip->sin_addr));
+ }
+
+ if (ifindex) {
+ if (ioctl(fd, SIOCGIFINDEX, &ifr) != 0) {
+ bb_perror_msg("SIOCGIFINDEX failed");
+ close(fd);
return -1;
}
- if (ioctl(fd, SIOCGIFHWADDR, &ifr) == 0) {
- memcpy(arp, ifr.ifr_hwaddr.sa_data, 6);
- DEBUG(LOG_INFO, "adapter hardware address %02x:%02x:%02x:%02x:%02x:%02x",
- arp[0], arp[1], arp[2], arp[3], arp[4], arp[5]);
- } else {
- LOG(LOG_ERR, "SIOCGIFHWADDR failed!: %m");
+ DEBUG("adapter index %d", ifr.ifr_ifindex);
+ *ifindex = ifr.ifr_ifindex;
+ }
+
+ if (arp) {
+ if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0) {
+ bb_perror_msg("SIOCGIFHWADDR failed");
+ close(fd);
return -1;
}
- } else {
- LOG(LOG_ERR, "socket failed!: %m");
- return -1;
+ memcpy(arp, ifr.ifr_hwaddr.sa_data, 6);
+ DEBUG("adapter hardware address %02x:%02x:%02x:%02x:%02x:%02x",
+ arp[0], arp[1], arp[2], arp[3], arp[4], arp[5]);
}
- close(fd);
+
return 0;
}
-int listen_socket(unsigned int ip, int port, char *inf)
+int listen_socket(uint32_t ip, int port, char *inf)
{
struct ifreq interface;
int fd;
struct sockaddr_in addr;
- int n = 1;
- DEBUG(LOG_INFO, "Opening listen socket on 0x%08x:%d %s", ip, port, inf);
- if ((fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
- DEBUG(LOG_ERR, "socket call failed: %m");
- return -1;
- }
-
+ DEBUG("Opening listen socket on 0x%08x:%d %s", ip, port, inf);
+ fd = xsocket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
+
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = ip;
- if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &n, sizeof(n)) == -1) {
+ if (setsockopt_reuseaddr(fd) == -1) {
close(fd);
return -1;
}
- if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, (char *) &n, sizeof(n)) == -1) {
+ if (setsockopt_broadcast(fd) == -1) {
close(fd);
return -1;
}
- strncpy(interface.ifr_ifrn.ifrn_name, inf, IFNAMSIZ);
- if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,(char *)&interface, sizeof(interface)) < 0) {
+ strncpy(interface.ifr_name, inf, IFNAMSIZ);
+ if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, (char *)&interface, sizeof(interface)) < 0) {
close(fd);
return -1;
}
close(fd);
return -1;
}
-
- return fd;
-}
-
-
-int raw_socket(int ifindex)
-{
- int fd;
- struct sockaddr_ll sock;
-
- DEBUG(LOG_INFO, "Opening raw socket on ifindex %d", ifindex);
- if ((fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP))) < 0) {
- DEBUG(LOG_ERR, "socket call failed: %m");
- return -1;
- }
-
- sock.sll_family = AF_PACKET;
- sock.sll_protocol = htons(ETH_P_IP);
- sock.sll_ifindex = ifindex;
- if (bind(fd, (struct sockaddr *) &sock, sizeof(sock)) < 0) {
- DEBUG(LOG_ERR, "bind call failed: %m");
- close(fd);
- return -1;
- }
return fd;
}
projects / oweals / busybox.git / blobdiff