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#include <mlibc/all-sysdeps.hpp>
#include <sys/ioctl.h>
#include <net/if.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
namespace mlibc {
int sys_if_indextoname(unsigned int index, char *name) {
int fd = 0;
int r = sys_socket(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, AF_UNSPEC, &fd);
if(r)
return r;
struct ifreq ifr;
ifr.ifr_ifindex = index;
int res = 0;
int ret = sys_ioctl(fd, SIOCGIFNAME, &ifr, &res);
close(fd);
if(ret) {
if(ret == ENODEV)
return ENXIO;
return ret;
}
strncpy(name, ifr.ifr_name, IF_NAMESIZE);
return 0;
}
int sys_if_nametoindex(const char *name, unsigned int *ret) {
int fd = 0;
int r = sys_socket(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, AF_UNSPEC, &fd);
if(r)
return r;
struct ifreq ifr;
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
int res = 0;
r = sys_ioctl(fd, SIOCGIFINDEX, &ifr, &res);
close(fd);
if(r)
return r;
*ret = ifr.ifr_ifindex;
return 0;
}
} //namespace mlibc
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