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/* ----------------------------------------------------------------------- *
*
* Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
* Boston MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
/*
* resolv.c
*
* Resolve an IP address
*/
#include <string.h>
#include <stdio.h>
#include <console.h>
#include <stdlib.h>
#include <com32.h>
uint32_t resolv(const char *name)
{
com32sys_t reg;
strcpy((char *)__com32.cs_bounce, name);
memset(®, 0, sizeof reg);
reg.eax.w[0] = 0x0010;
reg.ebx.w[0] = OFFS(__com32.cs_bounce);
reg.es = SEG(__com32.cs_bounce);
__intcall(0x22, ®, ®);
if ( reg.eflags.l & EFLAGS_CF )
return 0;
else
return reg.eax.l;
}
int main(int argc, char *argv[])
{
uint32_t ip;
openconsole(&dev_null_r, &dev_stdcon_w);
if ( argc < 2 ) {
fputs("Usage: resolv hostname\n", stderr);
exit(1);
}
ip = resolv(argv[1]);
if ( ip ) {
printf("%s = %u.%u.%u.%u\n", argv[1],
(ip & 0xff), (ip >> 8) & 0xff,
(ip >> 16) & 0xff, (ip >> 24) & 0xff);
} else {
printf("%s not found\n", argv[1]);
}
return 0;
}
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