NetBSD/dist/ipf/lib/buildopts.c

45 lines
852 B
C

/* $NetBSD: buildopts.c,v 1.1.1.1 2004/03/28 08:56:18 martti Exp $ */
/*
* Copyright (C) 1993-2001 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*
* Id: buildopts.c,v 1.6 2002/01/28 06:50:45 darrenr Exp
*/
#include "ipf.h"
u_32_t buildopts(cp, op, len)
char *cp, *op;
int len;
{
struct ipopt_names *io;
u_32_t msk = 0;
char *s, *t;
int inc;
for (s = strtok(cp, ","); s; s = strtok(NULL, ",")) {
if ((t = strchr(s, '=')))
*t++ = '\0';
for (io = ionames; io->on_name; io++) {
if (strcasecmp(s, io->on_name) || (msk & io->on_bit))
continue;
if ((inc = addipopt(op, io, len, t))) {
op += inc;
len += inc;
}
msk |= io->on_bit;
break;
}
if (!io->on_name) {
fprintf(stderr, "unknown IP option name %s\n", s);
return 0;
}
}
*op++ = IPOPT_EOL;
len++;
return len;
}