41 lines
755 B
C
41 lines
755 B
C
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#include <netinet/in.h>
|
||
|
|
#include "__dns.h"
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
int __ipparse(void *dest, int family, const char *s)
|
||
|
|
{
|
||
|
|
unsigned char *d = dest;
|
||
|
|
unsigned long a[16] = { 0 };
|
||
|
|
const char *z;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (family == AF_INET6) goto not_v4;
|
||
|
|
|
||
|
|
for (i=0; i<4 && *s; i++) {
|
||
|
|
a[i] = strtoul(s, (char **)&z, 0);
|
||
|
|
if (z==s || (*z && *z != '.')) goto not_v4;
|
||
|
|
s=z+1;
|
||
|
|
}
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
((struct sockaddr_in *)d)->sin_family = AF_INET;
|
||
|
|
d = (void *)&((struct sockaddr_in *)d)->sin_addr;
|
||
|
|
for (i=0; i<4; i++) d[i] = a[i];
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
not_v4:
|
||
|
|
return -1;
|
||
|
|
}
|