/* * 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 1.1.206.1 2004/03/09 08:33:37 marka 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 voidpr_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 voidpr_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;}/* * struct protoent * pr_next(struct irs_pr *this) * * Notes: * *	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 voidpr_minimize(struct irs_pr *this) {	struct pvt *pvt = (struct pvt *)this->private;	irs_irp_disconnect(pvt->girpdata);}/* * static void free_proto(struct protoent *pw); * *	Deallocate all the memory irp_unmarshall_pr allocated. * */static voidfree_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);}