getproto.c revision 153881 
1/*	$FreeBSD: head/contrib/ipfilter/lib/getproto.c 153881 2005-12-30 11:52:26Z guido $	*/
2
3#include "ipf.h"
4
5int getproto(name)
6char *name;
7{
8	struct protoent *p;
9	char *s;
10
11	for (s = name; *s != '\0'; s++)
12		if (!ISDIGIT(*s))
13			break;
14	if (*s == '\0')
15		return atoi(name);
16
17#ifdef _AIX51
18	/*
19	 * For some bogus reason, "ip" is 252 in /etc/protocols on AIX 5
20	 */
21	if (!strcasecmp(name, "ip"))
22		return 0;
23#endif
24
25	p = getprotobyname(name);
26	if (p != NULL)
27		return p->p_proto;
28	return -1;
29}
30