lib/common/getproto.c

/*
 * 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;
}