/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
* Portions 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 ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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(LIBC_SCCS) && !defined(lint)
static const char rcsid[] = "$Id: irp_pr.c,v 1.3 2005/04/27 04:56:29 sra Exp $";
#endif /* LIBC_SCCS and not lint */
/* extern */
#include "port_before.h"
#include <syslog.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <netdb.h>
#include <syslog.h>
#include <irs.h>
#include <irp.h>
#include <isc/memcluster.h>
#include <isc/irpmarshall.h>
#include "irs_p.h"
#include "lcl_p.h"
#include "irp_p.h"
#include "port_after.h"
#define MAXALIASES 35
/* Types */
struct pvt {
struct irp_p *girpdata;
int warned;
struct protoent proto;
};
/* Forward */
static void pr_close(struct irs_pr *);
static struct protoent * pr_next(struct irs_pr *);
static struct protoent * pr_byname(struct irs_pr *, const char *);
static struct protoent * pr_bynumber(struct irs_pr *, int);
static void pr_rewind(struct irs_pr *);
static void pr_minimize(struct irs_pr *);
static void free_proto(struct protoent *pr);
/* Public */
/*%
* struct irs_pr * irs_irp_pr(struct irs_acc *this)
*
*/
struct irs_pr *
irs_irp_pr(struct irs_acc *this) {
struct irs_pr *pr;
struct pvt *pvt;
if (!(pr = memget(sizeof *pr))) {
errno = ENOMEM;
return (NULL);
}
memset(pr, 0x0, sizeof *pr);
if (!(pvt = memget(sizeof *pvt))) {
memput(pr, sizeof *pr);
errno = ENOMEM;
return (NULL);
}
memset(pvt, 0, sizeof *pvt);
pvt->girpdata = this->private;
pr->private = pvt;
pr->close = pr_close;
pr->byname = pr_byname;
pr->bynumber = pr_bynumber;
pr->next = pr_next;
pr->rewind = pr_rewind;
pr->minimize = pr_minimize;
return (pr);
}
/* Methods */
/*%
* void pr_close(struct irs_pr *this)
*
*/
static void
pr_close(struct irs_pr *this) {
struct pvt *pvt = (struct pvt *)this->private;
pr_minimize(this);
free_proto(&pvt->proto);
memput(pvt, sizeof *pvt);
memput(this, sizeof *this);
}
/*%
* struct protoent * pr_byname(struct irs_pr *this, const char *name)
*
*/
static struct protoent *
pr_byname(struct irs_pr *this, const char *name) {
struct pvt *pvt = (struct pvt *)this->private;
struct protoent *pr = &pvt->proto;
char *body = NULL;
size_t bodylen;
int code;
int i;
char text[256];
if (pr->p_name != NULL && strcmp(name, pr->p_name) == 0) {
return (pr);
}
if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
return (NULL);
}
i = irs_irp_send_command(pvt->girpdata, "getprotobyname %s", name);
if (i != 0)
return (NULL);
if (irs_irp_get_full_response(pvt->girpdata, &code,
text, sizeof text,
&body, &bodylen) != 0) {
return (NULL);
}
if (code == IRPD_GETPROTO_OK) {
free_proto(pr);
if (irp_unmarshall_pr(pr, body) != 0) {
pr = NULL;
}
} else {
pr = NULL;
}
if (body != NULL) {
memput(body, bodylen);
}
return (pr);
}
/*%
* struct protoent * pr_bynumber(struct irs_pr *this, int proto)
*
*/
static struct protoent *
pr_bynumber(struct irs_pr *this, int proto) {
struct pvt *pvt = (struct pvt *)this->private;
struct protoent *pr = &pvt->proto;
char *body = NULL;
size_t bodylen;
int code;
int i;
char text[256];
if (pr->p_name != NULL && proto == pr->p_proto) {
return (pr);
}
if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
return (NULL);
}
i = irs_irp_send_command(pvt->girpdata, "getprotobynumber %d", proto);
if (i != 0)
return (NULL);
if (irs_irp_get_full_response(pvt->girpdata, &code,
text, sizeof text,
&body, &bodylen) != 0) {
return (NULL);
}
if (code == IRPD_GETPROTO_OK) {
free_proto(pr);
if (irp_unmarshall_pr(pr, body) != 0) {
pr = NULL;
}
} else {
pr = NULL;
}
if (body != NULL) {
memput(body, bodylen);
}
return (pr);
}
/*%
* void pr_rewind(struct irs_pr *this)
*
*/
static void
pr_rewind(struct irs_pr *this) {
struct pvt *pvt = (struct pvt *)this->private;
char text[256];
int code;
if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
return;
}
if (irs_irp_send_command(pvt->girpdata, "setprotoent") != 0) {
return;
}
code = irs_irp_read_response(pvt->girpdata, text, sizeof text);
if (code != IRPD_GETPROTO_SETOK) {
if (irp_log_errors) {
syslog(LOG_WARNING, "setprotoent failed: %s", text);
}
}
return;
}
/*%
* Prepares the cache if necessary and returns the next item in it.
*
*/
static struct protoent *
pr_next(struct irs_pr *this) {
struct pvt *pvt = (struct pvt *)this->private;
struct protoent *pr = &pvt->proto;
char *body;
size_t bodylen;
int code;
char text[256];
if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
return (NULL);
}
if (irs_irp_send_command(pvt->girpdata, "getprotoent") != 0) {
return (NULL);
}
if (irs_irp_get_full_response(pvt->girpdata, &code,
text, sizeof text,
&body, &bodylen) != 0) {
return (NULL);
}
if (code == IRPD_GETPROTO_OK) {
free_proto(pr);
if (irp_unmarshall_pr(pr, body) != 0) {
pr = NULL;
}
} else {
pr = NULL;
}
if (body != NULL) {
memput(body, bodylen);
}
return (pr);
}
/*%
* void pr_minimize(struct irs_pr *this)
*
*/
static void
pr_minimize(struct irs_pr *this) {
struct pvt *pvt = (struct pvt *)this->private;
irs_irp_disconnect(pvt->girpdata);
}
/*%
* Deallocate all the memory irp_unmarshall_pr allocated.
*
*/
static void
free_proto(struct protoent *pr) {
char **p;
if (pr == NULL)
return;
if (pr->p_name != NULL)
free(pr->p_name);
for (p = pr->p_aliases ; p != NULL && *p != NULL ; p++)
free(*p);
}
/*! \file */