usr/src/lib/libc/net/getservbyname.c

/*
 * Copyright (c) 1983, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)getservbyname.c     8.1 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <netdb.h>
#include <string.h>

extern int _serv_stayopen;

struct servent *
getservbyname(name, proto)
        const char *name, *proto;
{
        register struct servent *p;
        register char **cp;

        setservent(_serv_stayopen);
        while (p = getservent()) {
                if (strcmp(name, p->s_name) == 0)
                        goto gotname;
                for (cp = p->s_aliases; *cp; cp++)
                        if (strcmp(name, *cp) == 0)
                                goto gotname;
                continue;
gotname:
                if (proto == 0 || strcmp(p->s_proto, proto) == 0)
                        break;
        }
        if (!_serv_stayopen)
                endservent();
        return (p);
}