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

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

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)getprotoname.c      5.7 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

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

extern int _proto_stayopen;

struct protoent *
getprotobyname(name)
        register const char *name;
{
        register struct protoent *p;
        register char **cp;

        setprotoent(_proto_stayopen);
        while (p = getprotoent()) {
                if (strcmp(p->p_name, name) == 0)
                        break;
                for (cp = p->p_aliases; *cp != 0; cp++)
                        if (strcmp(*cp, name) == 0)
                                goto found;
        }
found:
        if (!_proto_stayopen)
                endprotoent();
        return (p);
}