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#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <syslog.h>
#include <arpa/inet.h>
#include <linux/sockios.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include "globals.h"
static int get_sockfd(void)
{
static int sockfd = -1;
if (sockfd == -1)
{
if ((sockfd = socket(PF_INET, SOCK_RAW, IPPROTO_RAW)) == -1)
{
perror("user: socket creating failed");
return (-1);
}
}
return sockfd;
}
int GetIpAddressStr(char *address, char *ifname)
{
struct ifreq ifr;
struct sockaddr_in *saddr;
int fd;
int succeeded = 0;
fd = get_sockfd();
if (fd >= 0 )
{
strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
ifr.ifr_addr.sa_family = AF_INET;
if (ioctl(fd, SIOCGIFADDR, &ifr) == 0)
{
saddr = (struct sockaddr_in *)&ifr.ifr_addr;
strcpy(address,inet_ntoa(saddr->sin_addr));
succeeded = 1;
}
else
{
syslog(LOG_ERR, "Failure obtaining ip address of interface %s", ifname);
succeeded = 0;
}
}
return succeeded;
}
void trace(int debuglevel, const char *format, ...)
{
va_list ap;
va_start(ap,format);
if (g_vars.debug>=debuglevel) {
vsyslog(LOG_DEBUG,format,ap);
}
va_end(ap);
}
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