409 lines
7.1 KiB
C
409 lines
7.1 KiB
C
/*
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* Portions Copyright(c) 1996, 1998 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static const char rcsid[] = "$Id: irp_gr.c,v 8.3 2001/05/29 05:48:57 marka Exp $";
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#endif /* LIBC_SCCS and not lint */
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/* extern */
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#include "port_before.h"
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#ifndef WANT_IRS_PW
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static int __bind_irs_gr_unneeded;
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#else
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#include <syslog.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <grp.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <syslog.h>
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#include <irs.h>
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#include <irp.h>
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#include <isc/memcluster.h>
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#include <isc/irpmarshall.h>
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#include "irs_p.h"
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#include "lcl_p.h"
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#include "irp_p.h"
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#include "port_after.h"
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/* Types. */
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/*
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* Module for the getnetgrent(3) family to use when connected to a
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* remote irp daemon.
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*
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* See irpd.c for justification of caching done here.
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*
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*/
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struct pvt {
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struct irp_p *girpdata; /* global IRP data */
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int warned;
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struct group group;
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};
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/* Forward. */
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static void gr_close(struct irs_gr *);
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static struct group * gr_next(struct irs_gr *);
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static struct group * gr_byname(struct irs_gr *, const char *);
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static struct group * gr_bygid(struct irs_gr *, gid_t);
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static void gr_rewind(struct irs_gr *);
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static void gr_minimize(struct irs_gr *);
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/* Private */
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static void free_group(struct group *gr);
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/* Public. */
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/*
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* struct irs_gr * irs_irp_gr(struct irs_acc *this)
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*
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* Notes:
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*
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* Initialize the group sub-module.
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*
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* Notes:
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*
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* Module data.
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*
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*/
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struct irs_gr *
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irs_irp_gr(struct irs_acc *this) {
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struct irs_gr *gr;
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struct pvt *pvt;
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if (!(gr = memget(sizeof *gr))) {
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errno = ENOMEM;
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return (NULL);
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}
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memset(gr, 0x0, sizeof *gr);
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if (!(pvt = memget(sizeof *pvt))) {
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memput(gr, sizeof *gr);
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errno = ENOMEM;
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return (NULL);
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}
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memset(pvt, 0x0, sizeof *pvt);
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pvt->girpdata = this->private;
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gr->private = pvt;
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gr->close = gr_close;
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gr->next = gr_next;
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gr->byname = gr_byname;
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gr->bygid = gr_bygid;
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gr->rewind = gr_rewind;
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gr->list = make_group_list;
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gr->minimize = gr_minimize;
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return (gr);
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}
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/* Methods. */
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/*
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* void gr_close(struct irs_gr *this)
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*
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* Notes:
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*
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* Close the sub-module.
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*
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*/
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static void
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gr_close(struct irs_gr *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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gr_minimize(this);
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memput(pvt, sizeof *pvt);
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memput(this, sizeof *this);
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}
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/*
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* struct group * gr_next(struct irs_gr *this)
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*
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* Notes:
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*
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* Gets the next group out of the cached data and returns it.
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*
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*/
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static struct group *
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gr_next(struct irs_gr *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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struct group *gr = &pvt->group;
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char *body;
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size_t bodylen;
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int code;
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char text[256];
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return (NULL);
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}
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if (irs_irp_send_command(pvt->girpdata, "getgrent") != 0) {
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return (NULL);
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}
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if (irs_irp_get_full_response(pvt->girpdata, &code,
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text, sizeof text,
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&body, &bodylen) != 0) {
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if (irp_log_errors) {
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syslog(LOG_WARNING, "getgrent failed: %s", text);
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}
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return (NULL);
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}
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if (code == IRPD_GETGROUP_OK) {
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free_group(gr);
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if (irp_unmarshall_gr(gr, body) != 0) {
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gr = NULL;
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}
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} else {
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gr = NULL;
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}
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if (body != NULL) {
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memput(body, bodylen);
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}
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return (gr);
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}
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/*
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* struct group * gr_byname(struct irs_gr *this, const char *name)
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*
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* Notes:
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*
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* Gets a group by name from irpd and returns it.
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*
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*/
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static struct group *
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gr_byname(struct irs_gr *this, const char *name) {
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struct pvt *pvt = (struct pvt *)this->private;
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struct group *gr = &pvt->group;
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char *body;
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size_t bodylen;
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int code;
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char text[256];
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if (gr->gr_name != NULL && strcmp(name, gr->gr_name) == 0) {
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return (gr);
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}
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return (NULL);
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}
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if (irs_irp_send_command(pvt->girpdata, "getgrnam %s", name) != 0)
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return (NULL);
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if (irs_irp_get_full_response(pvt->girpdata, &code,
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text, sizeof text,
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&body, &bodylen) != 0) {
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return (NULL);
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}
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if (code == IRPD_GETGROUP_OK) {
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free_group(gr);
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if (irp_unmarshall_gr(gr, body) != 0) {
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gr = NULL;
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}
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} else {
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gr = NULL;
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}
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if (body != NULL) {
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memput(body, bodylen);
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}
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return (gr);
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}
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/*
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* struct group * gr_bygid(struct irs_gr *this, gid_t gid)
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*
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* Notes:
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*
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* Gets a group by gid from irpd and returns it.
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*
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*/
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static struct group *
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gr_bygid(struct irs_gr *this, gid_t gid) {
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struct pvt *pvt = (struct pvt *)this->private;
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struct group *gr = &pvt->group;
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char *body;
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size_t bodylen;
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int code;
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char text[256];
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if (gr->gr_name != NULL && (gid_t)gr->gr_gid == gid) {
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return (gr);
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}
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return (NULL);
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}
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if (irs_irp_send_command(pvt->girpdata, "getgrgid %d", gid) != 0)
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return (NULL);
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if (irs_irp_get_full_response(pvt->girpdata, &code,
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text, sizeof text,
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&body, &bodylen) != 0) {
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return (NULL);
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}
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if (code == IRPD_GETGROUP_OK) {
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free_group(gr);
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if (irp_unmarshall_gr(gr, body) != 0) {
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gr = NULL;
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}
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} else {
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gr = NULL;
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}
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if (body != NULL) {
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memput(body, bodylen);
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}
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return (gr);
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}
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/*
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* void gr_rewind(struct irs_gr *this)
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*
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*/
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static void
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gr_rewind(struct irs_gr *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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char text[256];
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int code;
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if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) {
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return;
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}
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if (irs_irp_send_command(pvt->girpdata, "setgrent") != 0) {
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return;
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}
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code = irs_irp_read_response(pvt->girpdata, text, sizeof text);
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if (code != IRPD_GETGROUP_SETOK) {
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if (irp_log_errors) {
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syslog(LOG_WARNING, "setgrent failed: %s", text);
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}
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}
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return;
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}
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/*
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* void gr_minimize(struct irs_gr *this)
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*
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* Notes:
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*
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* Frees up cached data and disconnects(if necessary) from the remote.
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*
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*/
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static void
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gr_minimize(struct irs_gr *this) {
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struct pvt *pvt = (struct pvt *)this->private;
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free_group(&pvt->group);
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irs_irp_disconnect(pvt->girpdata);
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}
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/* Private. */
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/*
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* static void free_group(struct group *gr);
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*
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* Deallocate all the memory irp_unmarshall_gr allocated.
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*
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*/
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static void
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free_group(struct group *gr) {
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char **p;
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if (gr == NULL)
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return;
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if (gr->gr_name != NULL)
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free(gr->gr_name);
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if (gr->gr_passwd != NULL)
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free(gr->gr_passwd);
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for (p = gr->gr_mem ; p != NULL && *p != NULL ; p++)
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free(*p);
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if (gr->gr_mem)
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free(gr->gr_mem);
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if (p != NULL)
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free(p);
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}
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#endif /* WANT_IRS_GR */
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