1 /* 2 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (c) 1996, 1998 by Internet Software Consortium. 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 15 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #if !defined(LINT) && !defined(CODECENTER) 19 static const char rcsid[] = "$Id: irp_ng.c,v 1.4 2006/12/07 04:46:27 marka Exp $"; 20 #endif 21 22 /* Imports */ 23 24 #include "port_before.h" 25 26 #include <errno.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 #include <syslog.h> 32 33 #include <irs.h> 34 #include <irp.h> 35 #include <isc/memcluster.h> 36 #include <isc/irpmarshall.h> 37 38 #include "irs_p.h" 39 #include "irp_p.h" 40 41 #include "port_after.h" 42 43 /* Definitions */ 44 45 struct pvt { 46 struct irp_p *girpdata; 47 int warned; 48 }; 49 50 51 /* Forward */ 52 53 static void ng_rewind(struct irs_ng *, const char*); 54 static void ng_close(struct irs_ng *); 55 static int ng_next(struct irs_ng *, const char **, const char **, 56 const char **); 57 static int ng_test(struct irs_ng *, const char *, 58 const char *, const char *, 59 const char *); 60 static void ng_minimize(struct irs_ng *); 61 62 63 /* Public */ 64 65 /*% 66 * Intialize the irp netgroup module. 67 * 68 */ 69 70 struct irs_ng * 71 irs_irp_ng(struct irs_acc *this) { 72 struct irs_ng *ng; 73 struct pvt *pvt; 74 75 if (!(ng = memget(sizeof *ng))) { 76 errno = ENOMEM; 77 return (NULL); 78 } 79 memset(ng, 0x5e, sizeof *ng); 80 81 if (!(pvt = memget(sizeof *pvt))) { 82 memput(ng, sizeof *ng); 83 errno = ENOMEM; 84 return (NULL); 85 } 86 memset(pvt, 0, sizeof *pvt); 87 pvt->girpdata = this->private; 88 89 ng->private = pvt; 90 ng->close = ng_close; 91 ng->next = ng_next; 92 ng->test = ng_test; 93 ng->rewind = ng_rewind; 94 ng->minimize = ng_minimize; 95 return (ng); 96 } 97 98 /* Methods */ 99 100 101 102 /* 103 * void ng_close(struct irs_ng *this) 104 * 105 */ 106 107 static void 108 ng_close(struct irs_ng *this) { 109 struct pvt *pvt = (struct pvt *)this->private; 110 111 ng_minimize(this); 112 113 memput(pvt, sizeof *pvt); 114 memput(this, sizeof *this); 115 } 116 117 118 119 120 /* 121 * void ng_rewind(struct irs_ng *this, const char *group) 122 * 123 * 124 */ 125 126 static void 127 ng_rewind(struct irs_ng *this, const char *group) { 128 struct pvt *pvt = (struct pvt *)this->private; 129 char text[256]; 130 int code; 131 132 if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) { 133 return; 134 } 135 136 if (irs_irp_send_command(pvt->girpdata, 137 "setnetgrent %s", group) != 0) { 138 return; 139 } 140 141 code = irs_irp_read_response(pvt->girpdata, text, sizeof text); 142 if (code != IRPD_GETNETGR_SETOK) { 143 if (irp_log_errors) { 144 syslog(LOG_WARNING, "setnetgrent(%s) failed: %s", 145 group, text); 146 } 147 } 148 149 return; 150 } 151 152 /* 153 * Get the next netgroup item from the cache. 154 * 155 */ 156 157 static int 158 ng_next(struct irs_ng *this, const char **host, const char **user, 159 const char **domain) 160 { 161 struct pvt *pvt = (struct pvt *)this->private; 162 int code; 163 char *body = NULL; 164 size_t bodylen; 165 int rval = 0; 166 char text[256]; 167 168 if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) { 169 return (0); 170 } 171 172 if (irs_irp_send_command(pvt->girpdata, "getnetgrent") != 0) 173 return (0); 174 175 if (irs_irp_get_full_response(pvt->girpdata, &code, 176 text, sizeof text, 177 &body, &bodylen) != 0) { 178 return (0); 179 } 180 181 if (code == IRPD_GETNETGR_OK) { 182 if (irp_unmarshall_ng(host, user, domain, body) == 0) { 183 rval = 1; 184 } 185 } 186 187 if (body != NULL) { 188 memput(body, bodylen); 189 } 190 191 return (rval); 192 } 193 194 /* 195 * Search for a match in a netgroup. 196 * 197 */ 198 199 static int 200 ng_test(struct irs_ng *this, const char *name, 201 const char *host, const char *user, const char *domain) 202 { 203 struct pvt *pvt = (struct pvt *)this->private; 204 char *body = NULL; 205 size_t bodylen = 0; 206 int code; 207 char text[256]; 208 int rval = 0; 209 210 UNUSED(name); 211 212 if (irs_irp_connection_setup(pvt->girpdata, &pvt->warned) != 0) { 213 return (0); 214 } 215 216 if (irp_marshall_ng(host, user, domain, &body, &bodylen) != 0) { 217 return (0); 218 } 219 220 if (irs_irp_send_command(pvt->girpdata, "innetgr %s", body) == 0) { 221 code = irs_irp_read_response(pvt->girpdata, text, sizeof text); 222 if (code == IRPD_GETNETGR_MATCHES) { 223 rval = 1; 224 } 225 } 226 227 memput(body, bodylen); 228 229 return (rval); 230 } 231 232 233 234 235 /* 236 * void ng_minimize(struct irs_ng *this) 237 * 238 */ 239 240 static void 241 ng_minimize(struct irs_ng *this) { 242 struct pvt *pvt = (struct pvt *)this->private; 243 244 irs_irp_disconnect(pvt->girpdata); 245 } 246 247 248 249 250 /* Private */ 251 252 253 /*! \file */ 254