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/*
* Copyright (c) 1996 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#if !defined(LINT) && !defined(CODECENTER)
static char rcsid[] = "$Id: getservent.c,v 1.10 1997/12/04 04:57:54 halley Exp $";
#endif
/* Imports */
#include "port_before.h"
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include <irs.h>
#include "port_after.h"
#include "irs_data.h"
/* Forward */
static struct irs_sv * init(void);
/* Public */
struct servent *
getservent(void) {
struct irs_sv *sv = init();
if (!sv)
return (NULL);
net_data.sv_last = (*sv->next)(sv);
return (net_data.sv_last);
}
struct servent *
getservbyname(const char *name, const char *proto) {
struct irs_sv *sv = init();
char **sap;
if (!sv)
return (NULL);
if (net_data.sv_stayopen && net_data.sv_last)
if (!proto || !strcmp(net_data.sv_last->s_proto,proto)) {
if (!strcmp(net_data.sv_last->s_name, name))
return (net_data.sv_last);
for (sap = net_data.sv_last->s_aliases;
sap && *sap; sap++)
if (!strcmp(name, *sap))
return (net_data.sv_last);
}
net_data.sv_last = (*sv->byname)(sv, name, proto);
if (!net_data.sv_stayopen)
endservent();
return (net_data.sv_last);
}
struct servent *
getservbyport(int port, const char *proto) {
struct irs_sv *sv = init();
if (!sv)
return (NULL);
if (net_data.sv_stayopen && net_data.sv_last)
if (port == net_data.sv_last->s_port &&
( !proto ||
!strcmp(net_data.sv_last->s_proto, proto)))
return (net_data.sv_last);
net_data.sv_last = (*sv->byport)(sv, port,proto);
return (net_data.sv_last);
}
void
setservent(int stayopen) {
struct irs_sv *sv = init();
if (!sv)
return;
(*sv->rewind)(sv);
net_data.sv_stayopen = (stayopen != 0);
}
void
endservent() {
struct irs_sv *sv = init();
if (sv != NULL)
(*sv->minimize)(sv);
}
/* Private */
static struct irs_sv *
init() {
if (!net_data_init())
goto error;
if (!net_data.sv)
net_data.sv = (*net_data.irs->sv_map)(net_data.irs);
if (!net_data.sv) {
error:
errno = EIO;
return (NULL);
}
return (net_data.sv);
}
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