ref: a13c5c3ddadb97c85fa606ac27e9d44f0c770d6f
dir: /sys/src/ape/lib/bsd/inet_addr.c/
/* posix */
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
/* bsd extensions */
#include <sys/uio.h>
#include <sys/socket.h>
#include <netinet/in.h>
unsigned long
inet_addr(char *from)
{
struct in_addr in;
if(inet_aton(from, &in) == 0)
return INADDR_NONE;
return in.s_addr;
}