blob: c65f7c2c039dbeb9e3757bdf4644ed536aff468e [file] [log] [blame] [edit]
#include <ctype.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
int __inet_aton(const char *s0, struct in_addr *dest)
{
const char *s = s0;
unsigned char *d = (void *)dest;
unsigned long a[4] = { 0 };
char *z;
int i;
for (i=0; i<4; i++) {
a[i] = strtoul(s, &z, 0);
if (z==s || (*z && *z != '.') || !isdigit(*s))
return 0;
if (!*z) break;
s=z+1;
}
if (i==4) return 0;
switch (i) {
case 0:
a[1] = a[0] & 0xffffff;
a[0] >>= 24;
case 1:
a[2] = a[1] & 0xffff;
a[1] >>= 16;
case 2:
a[3] = a[2] & 0xff;
a[2] >>= 8;
}
for (i=0; i<4; i++) {
if (a[i] > 255) return 0;
d[i] = a[i];
}
return 1;
}
weak_alias(__inet_aton, inet_aton);