/* $NetBSD: irp_nw.c,v 1.1.1.2 2012/09/09 16:07:58 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_nw.c,v 1.4 2006/03/09 23:57:56 marka Exp "; #endif /* LIBC_SCCS and not lint */ #if 0 #endif /* Imports */ #include "port_before.h" #include #include #include #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" #define MAXALIASES 35 #define MAXADDRSIZE 4 struct pvt { struct irp_p *girpdata; int warned; struct nwent net; }; /* Forward */ static void nw_close(struct irs_nw *); static struct nwent * nw_byname(struct irs_nw *, const char *, int); static struct nwent * nw_byaddr(struct irs_nw *, void *, int, int); static struct nwent * nw_next(struct irs_nw *); static void nw_rewind(struct irs_nw *); static void nw_minimize(struct irs_nw *); static void free_nw(struct nwent *nw); /* Public */ /*% * struct irs_nw * irs_irp_nw(struct irs_acc *this) * */ struct irs_nw * irs_irp_nw(struct irs_acc *this) { struct irs_nw *nw; struct pvt *pvt; if (!(pvt = memget(sizeof *pvt))) { errno = ENOMEM; return (NULL); } memset(pvt, 0, sizeof *pvt); if (!(nw = memget(sizeof *nw))) { memput(pvt, sizeof *pvt); errno = ENOMEM; return (NULL); } memset(nw, 0x0, sizeof *nw); pvt->girpdata = this->private; nw->private = pvt; nw->close = nw_close; nw->byname = nw_byname; nw->byaddr = nw_byaddr; nw->next = nw_next; nw->rewind = nw_rewind; nw->minimize = nw_minimize; return (nw); } /* Methods */ /*% * void nw_close(struct irs_nw *this) * */ static void nw_close(struct irs_nw *this) { struct pvt *pvt = (struct pvt *)this->private; nw_minimize(this); free_nw(&pvt->net); memput(pvt, sizeof *pvt); memput(this, sizeof *this); } /*% * struct nwent * nw_byaddr(struct irs_nw *this, void *net, * int length, int type) * */ static struct nwent * nw_byaddr(struct irs_nw *this, void *net, int length, int type) { struct pvt *pvt = (struct pvt *)this->private; struct nwent *nw = &pvt->net; char *body = NULL; size_t bodylen; int code; char paddr[24]; /*%< bigenough for ip4 w/ cidr spec. */ char text[256]; if (inet_net_ntop(type, net, length, paddr, sizeof paddr) == NULL) { return (NULL); } if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) { return (NULL); } if (irs_irp_send_command(pvt->girpdata, "getnetbyaddr %s %s", paddr, ADDR_T_STR(type)) != 0) return (NULL); if (irs_irp_get_full_response(pvt->girpdata, &code, text, sizeof text, &body, &bodylen) != 0) { return (NULL); } if (code == IRPD_GETNET_OK) { free_nw(nw); if (irp_unmarshall_nw(nw, body) != 0) { nw = NULL; } } else { nw = NULL; } if (body != NULL) { memput(body, bodylen); } return (nw); } /*% * struct nwent * nw_byname(struct irs_nw *this, const char *name, int type) * */ static struct nwent * nw_byname(struct irs_nw *this, const char *name, int type) { struct pvt *pvt = (struct pvt *)this->private; struct nwent *nw = &pvt->net; char *body = NULL; size_t bodylen; int code; char text[256]; if (nw->n_name != NULL && strcmp(name, nw->n_name) == 0 && nw->n_addrtype == type) { return (nw); } if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) { return (NULL); } if (irs_irp_send_command(pvt->girpdata, "getnetbyname %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_GETNET_OK) { free_nw(nw); if (irp_unmarshall_nw(nw, body) != 0) { nw = NULL; } } else { nw = NULL; } if (body != NULL) { memput(body, bodylen); } return (nw); } /*% * void nw_rewind(struct irs_nw *this) * */ static void nw_rewind(struct irs_nw *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, "setnetent") != 0) { return; } code = irs_irp_read_response(pvt->girpdata, text, sizeof text); if (code != IRPD_GETNET_SETOK) { if (irp_log_errors) { syslog(LOG_WARNING, "setnetent failed: %s", text); } } return; } /*% * Prepares the cache if necessary and returns the first, or * next item from it. */ static struct nwent * nw_next(struct irs_nw *this) { struct pvt *pvt = (struct pvt *)this->private; struct nwent *nw = &pvt->net; 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, "getnetent") != 0) { return (NULL); } if (irs_irp_get_full_response(pvt->girpdata, &code, text, sizeof text, &body, &bodylen) != 0) { return (NULL); } if (code == IRPD_GETNET_OK) { free_nw(nw); if (irp_unmarshall_nw(nw, body) != 0) { nw = NULL; } } else { nw = NULL; } if (body != NULL) memput(body, bodylen); return (nw); } /*% * void nw_minimize(struct irs_nw *this) * */ static void nw_minimize(struct irs_nw *this) { struct pvt *pvt = (struct pvt *)this->private; irs_irp_disconnect(pvt->girpdata); } /* private. */ /*% * deallocate all the memory irp_unmarshall_pw allocated. * */ static void free_nw(struct nwent *nw) { char **p; if (nw == NULL) return; if (nw->n_name != NULL) free(nw->n_name); if (nw->n_aliases != NULL) { for (p = nw->n_aliases ; *p != NULL ; p++) { free(*p); } free(nw->n_aliases); } if (nw->n_addr != NULL) free(nw->n_addr); } /*! \file */