112 lines
3.1 KiB
C
Executable File
112 lines
3.1 KiB
C
Executable File
/*
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* Copyright (c) 1991-1994 Sun Microsystems, Inc
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*
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* lib/libsocket/inet/getservbyname_r.c
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*
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* getservbyname_r() is defined in this file. It is implemented on top of
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* _get_hostserv_inetnetdir_byname() which is also used to implement
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* netdir_getbyname() for inet family transports. In turn the common code
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* uses the name service switch policy for "hosts" and "services" unless
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* the administrator chooses to bypass the name service switch by
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* specifying third-party supplied nametoaddr libs for inet transports
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* in /etc/netconfig.
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*
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* getservbyport_r() is similarly related to _get_hostserv_inetnetdir_byaddr()
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* and netdir_getbyaddr();
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*
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* The common code lives in lib/libnsl/nss/netdir_inet.c.
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*
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* getservent_r(), setservent() and endservent() are *not* implemented on top
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* of the common interface; they go straight to the switch and are
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* defined in getservent_r.c.
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*
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* There is absolutely no data sharing, not even the stayopen flag or
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* enumeration state, between getservbyYY_r() and getservent_r();
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*/
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#ident "@(#)getservbyname_r.c 1.2 94/03/24 SMI"
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#include <netdb.h>
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#include <netdir.h>
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#include <sys/types.h>
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#include <nss_netdir.h>
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extern int str2servent(const char *, int, void *, char *, int);
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extern struct netconfig *__rpc_getconfip();
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struct servent *
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getservbyname_r(name, proto, result, buffer, buflen)
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const char *name;
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const char *proto;
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struct servent *result;
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char *buffer;
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int buflen;
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{
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struct netconfig *nconf;
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struct nss_netdirbyname_in nssin;
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union nss_netdirbyname_out nssout;
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int neterr;
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if ((nconf = __rpc_getconfip("udp")) == NULL &&
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(nconf = __rpc_getconfip("tcp")) == NULL) {
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return ((struct servent *)NULL);
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}
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nssin.op_t = NSS_SERV;
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nssin.arg.nss.serv.name = name;
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nssin.arg.nss.serv.proto = proto;
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nssin.arg.nss.serv.buf = buffer;
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nssin.arg.nss.serv.buflen = buflen;
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nssout.nss.serv = result;
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/*
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* We pass in nconf and let the implementation of the long-named func
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* decide whether to use the switch based on nc_nlookups.
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*/
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neterr = _get_hostserv_inetnetdir_byname(nconf, &nssin, &nssout);
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(void) freenetconfigent(nconf);
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if (neterr != ND_OK) {
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return ((struct servent *)NULL);
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}
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return (nssout.nss.serv);
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}
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struct servent *
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getservbyport_r(port, proto, result, buffer, buflen)
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int port;
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const char *proto;
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struct servent *result;
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char *buffer;
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int buflen;
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{
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struct netconfig *nconf;
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struct nss_netdirbyaddr_in nssin;
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union nss_netdirbyaddr_out nssout;
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int neterr;
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if ((nconf = __rpc_getconfip("udp")) == NULL &&
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(nconf = __rpc_getconfip("tcp")) == NULL) {
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return ((struct servent *)NULL);
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}
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nssin.op_t = NSS_SERV;
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nssin.arg.nss.serv.port = port;
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nssin.arg.nss.serv.proto = proto;
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nssin.arg.nss.serv.buf = buffer;
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nssin.arg.nss.serv.buflen = buflen;
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nssout.nss.serv = result;
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/*
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* We pass in nconf and let the implementation of this long-named func
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* decide whether to use the switch based on nc_nlookups.
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*/
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neterr = _get_hostserv_inetnetdir_byaddr(nconf, &nssin, &nssout);
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(void) freenetconfigent(nconf);
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if (neterr != ND_OK) {
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return ((struct servent *)NULL);
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}
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return (nssout.nss.serv);
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}
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