blob: c3cacaac1466f147a9332fc4a46f430cce8e6271 [file] [log] [blame]
#define _GNU_SOURCE
#include <netdb.h>
#include <errno.h>
#include <stdlib.h>
struct hostent *gethostbyaddr(const void *a, socklen_t l, int af)
{
static struct hostent *h;
size_t size = 63;
struct hostent *res;
int err;
do {
free(h);
h = malloc(size+=size+1);
if (!h) {
h_errno = NO_RECOVERY;
return 0;
}
err = gethostbyaddr_r(a, l, af, h,
(void *)(h+1), size-sizeof *h, &res, &h_errno);
} while (err == ERANGE);
return res;
}