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Add dhcp_option_lookup and agent_option_lookup functions.

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Ted Lemon
1998-04-19 23:19:14 +00:00
parent 814bd3509f
commit f4c340534d
1 changed files with 38 additions and 1 deletions
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39
common/options.c
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@@ -42,7 +42,7 @@
#ifndef lint
static char copyright[] =
"$Id: options.c,v 1.30 1998/04/09 04:31:59 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
"$Id: options.c,v 1.31 1998/04/19 23:19:14 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
#endif /* not lint */
#define DHCP_OPTION_DATA
@@ -723,3 +723,40 @@ void do_packet (interface, packbuf, len, from_port, from, hfrom)
/* XXX what about freeing the options ?!? */
}
struct data_string dhcp_option_lookup (packet, code)
struct packet *packet;
int code;
{
struct data_string result;
result.len = packet -> options [code].len;
result.data = packet -> options [code].data;
result.terminated = 1;
result.buffer = (unsigned char *)0;
return result;
}
struct data_string agent_suboption_lookup (packet, code)
struct packet *packet;
int code;
{
struct agent_options *ao;
struct option_tag *t;
struct data_string result;
memset (&result, 0, sizeof result);
/* Find the last set of agent options and consider it definitive. */
if (ao) {
for (ao = packet -> agent_options; ao -> next; ao = ao -> next)
;
for (t = ao -> first; t; t = t -> next)
if (t -> data [0] == code) {
result.len = t -> data [1];
result.data = &t -> data [2];
break;
}
}
return result;
}