/* $NetBSD: irp_gr.c,v 1.1.1.2 2012/09/09 16:07:51 christos Exp $ */ /* * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") * Portions Copyright(c) 1996, 1998 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_gr.c,v 1.4 2005/04/27 04:56:27 sra Exp "; #endif /* LIBC_SCCS and not lint */ /* extern */ #include "port_before.h" #ifndef WANT_IRS_PW static int __bind_irs_gr_unneeded; #else #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "irs_p.h" #include "lcl_p.h" #include "irp_p.h" #include "port_after.h" /* Types. */ /*! \file * \brief * Module for the getnetgrent(3) family to use when connected to a * remote irp daemon. * \brief * See irpd.c for justification of caching done here. * */ struct pvt { struct irp_p *girpdata; /*%< global IRP data */ int warned; struct group group; }; /* Forward. */ static void gr_close(struct irs_gr *); static struct group * gr_next(struct irs_gr *); static struct group * gr_byname(struct irs_gr *, const char *); static struct group * gr_bygid(struct irs_gr *, gid_t); static void gr_rewind(struct irs_gr *); static void gr_minimize(struct irs_gr *); /* Private */ static void free_group(struct group *gr); /* Public. */ /*% * Initialize the group sub-module. * */ struct irs_gr * irs_irp_gr(struct irs_acc *this) { struct irs_gr *gr; struct pvt *pvt; if (!(gr = memget(sizeof *gr))) { errno = ENOMEM; return (NULL); } memset(gr, 0x0, sizeof *gr); if (!(pvt = memget(sizeof *pvt))) { memput(gr, sizeof *gr); errno = ENOMEM; return (NULL); } memset(pvt, 0x0, sizeof *pvt); pvt->girpdata = this->private; gr->private = pvt; gr->close = gr_close; gr->next = gr_next; gr->byname = gr_byname; gr->bygid = gr_bygid; gr->rewind = gr_rewind; gr->list = make_group_list; gr->minimize = gr_minimize; return (gr); } /* Methods. */ /*% * Close the sub-module. * */ static void gr_close(struct irs_gr *this) { struct pvt *pvt = (struct pvt *)this->private; gr_minimize(this); memput(pvt, sizeof *pvt); memput(this, sizeof *this); } /*% * Gets the next group out of the cached data and returns it. * */ static struct group * gr_next(struct irs_gr *this) { struct pvt *pvt = (struct pvt *)this->private; struct group *gr = &pvt->group; 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, "getgrent") != 0) { return (NULL); } if (irs_irp_get_full_response(pvt->girpdata, &code, text, sizeof text, &body, &bodylen) != 0) { if (irp_log_errors) { syslog(LOG_WARNING, "getgrent failed: %s", text); } return (NULL); } if (code == IRPD_GETGROUP_OK) { free_group(gr); if (irp_unmarshall_gr(gr, body) != 0) { gr = NULL; } } else { gr = NULL; } if (body != NULL) { memput(body, bodylen); } return (gr); } /*% * Gets a group by name from irpd and returns it. * */ static struct group * gr_byname(struct irs_gr *this, const char *name) { struct pvt *pvt = (struct pvt *)this->private; struct group *gr = &pvt->group; char *body; size_t bodylen; int code; char text[256]; if (gr->gr_name != NULL && strcmp(name, gr->gr_name) == 0) { return (gr); } if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) { return (NULL); } if (irs_irp_send_command(pvt->girpdata, "getgrnam %s", name) != 0) return (NULL); if (irs_irp_get_full_response(pvt->girpdata, &code, text, sizeof text, &body, &bodylen) != 0) { return (NULL); } if (code == IRPD_GETGROUP_OK) { free_group(gr); if (irp_unmarshall_gr(gr, body) != 0) { gr = NULL; } } else { gr = NULL; } if (body != NULL) { memput(body, bodylen); } return (gr); } /*% * Gets a group by gid from irpd and returns it. * */ static struct group * gr_bygid(struct irs_gr *this, gid_t gid) { struct pvt *pvt = (struct pvt *)this->private; struct group *gr = &pvt->group; char *body; size_t bodylen; int code; char text[256]; if (gr->gr_name != NULL && (gid_t)gr->gr_gid == gid) { return (gr); } if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) { return (NULL); } if (irs_irp_send_command(pvt->girpdata, "getgrgid %d", gid) != 0) return (NULL); if (irs_irp_get_full_response(pvt->girpdata, &code, text, sizeof text, &body, &bodylen) != 0) { return (NULL); } if (code == IRPD_GETGROUP_OK) { free_group(gr); if (irp_unmarshall_gr(gr, body) != 0) { gr = NULL; } } else { gr = NULL; } if (body != NULL) { memput(body, bodylen); } return (gr); } /*% * void gr_rewind(struct irs_gr *this) * */ static void gr_rewind(struct irs_gr *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, "setgrent") != 0) { return; } code = irs_irp_read_response(pvt->girpdata, text, sizeof text); if (code != IRPD_GETGROUP_SETOK) { if (irp_log_errors) { syslog(LOG_WARNING, "setgrent failed: %s", text); } } return; } /*% * Frees up cached data and disconnects(if necessary) from the remote. * */ static void gr_minimize(struct irs_gr *this) { struct pvt *pvt = (struct pvt *)this->private; free_group(&pvt->group); irs_irp_disconnect(pvt->girpdata); } /* Private. */ /*% * static void free_group(struct group *gr); * * Deallocate all the memory irp_unmarshall_gr allocated. * */ static void free_group(struct group *gr) { char **p; if (gr == NULL) return; if (gr->gr_name != NULL) free(gr->gr_name); if (gr->gr_passwd != NULL) free(gr->gr_passwd); for (p = gr->gr_mem ; p != NULL && *p != NULL ; p++) free(*p); if (gr->gr_mem) free(gr->gr_mem); if (p != NULL) free(p); } #endif /* WANT_IRS_GR */ /*! \file */