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root / base / usr / src / cmd / ipf / lib / getproto.c
getproto.c C 33 lines 513 B
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/*
 * Copyright (C) 1993-2005  by Darren Reed.
 * See the IPFILTER.LICENCE file for details on licencing.
 */

#include "ipf.h"

int getproto(name)
char *name;
{
	struct protoent *p;
	char *s;

	for (s = name; *s != '\0'; s++)
		if (!ISDIGIT(*s))
			break;
	if (*s == '\0')
		return atoi(name);

#ifdef _AIX51
	/*
	 * For some bogus reason, "ip" is 252 in /etc/protocols on AIX 5
	 */
	if (!strcasecmp(name, "ip"))
		return 0;
#endif

	p = getprotobyname(name);
	if (p != NULL)
		return p->p_proto;
	return -1;
}