utmpx.c revision 1.3.2.8
1 1.3.2.8 thorpej /* $NetBSD: utmpx.c,v 1.3.2.8 2002/12/10 06:25:49 thorpej Exp $ */ 2 1.3.2.2 nathanw 3 1.3.2.2 nathanw /*- 4 1.3.2.2 nathanw * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 1.3.2.2 nathanw * All rights reserved. 6 1.3.2.2 nathanw * 7 1.3.2.2 nathanw * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 nathanw * by Christos Zoulas. 9 1.3.2.2 nathanw * 10 1.3.2.2 nathanw * Redistribution and use in source and binary forms, with or without 11 1.3.2.2 nathanw * modification, are permitted provided that the following conditions 12 1.3.2.2 nathanw * are met: 13 1.3.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 14 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer. 15 1.3.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 17 1.3.2.2 nathanw * documentation and/or other materials provided with the distribution. 18 1.3.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 19 1.3.2.2 nathanw * must display the following acknowledgement: 20 1.3.2.2 nathanw * This product includes software developed by the NetBSD 21 1.3.2.2 nathanw * Foundation, Inc. and its contributors. 22 1.3.2.2 nathanw * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.3.2.2 nathanw * contributors may be used to endorse or promote products derived 24 1.3.2.2 nathanw * from this software without specific prior written permission. 25 1.3.2.2 nathanw * 26 1.3.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.3.2.2 nathanw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.3.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.3.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.3.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.3.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.3.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.3.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.3.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.3.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.3.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 37 1.3.2.2 nathanw */ 38 1.3.2.2 nathanw #include <sys/cdefs.h> 39 1.3.2.2 nathanw 40 1.3.2.2 nathanw #if defined(LIBC_SCCS) && !defined(lint) 41 1.3.2.8 thorpej __RCSID("$NetBSD: utmpx.c,v 1.3.2.8 2002/12/10 06:25:49 thorpej Exp $"); 42 1.3.2.2 nathanw #endif /* LIBC_SCCS and not lint */ 43 1.3.2.2 nathanw 44 1.3.2.2 nathanw #include <sys/types.h> 45 1.3.2.2 nathanw #include <sys/param.h> 46 1.3.2.2 nathanw #include <sys/wait.h> 47 1.3.2.2 nathanw #include <sys/socket.h> 48 1.3.2.2 nathanw #include <sys/time.h> 49 1.3.2.2 nathanw #include <sys/stat.h> 50 1.3.2.2 nathanw 51 1.3.2.7 nathanw #include <assert.h> 52 1.3.2.2 nathanw #include <stdio.h> 53 1.3.2.5 thorpej #include <stdlib.h> 54 1.3.2.2 nathanw #include <string.h> 55 1.3.2.2 nathanw #include <vis.h> 56 1.3.2.3 nathanw #include <utmp.h> 57 1.3.2.2 nathanw #include <utmpx.h> 58 1.3.2.2 nathanw #include <unistd.h> 59 1.3.2.2 nathanw #include <fcntl.h> 60 1.3.2.4 nathanw #include <errno.h> 61 1.3.2.4 nathanw #include <db.h> 62 1.3.2.2 nathanw 63 1.3.2.2 nathanw static FILE *fp; 64 1.3.2.2 nathanw static struct utmpx ut; 65 1.3.2.2 nathanw static char utfile[MAXPATHLEN] = _PATH_UTMPX; 66 1.3.2.4 nathanw static char llfile[MAXPATHLEN] = _PATH_LASTLOGX; 67 1.3.2.2 nathanw 68 1.3.2.2 nathanw static struct utmpx *utmp_update(const struct utmpx *); 69 1.3.2.2 nathanw 70 1.3.2.2 nathanw static const char vers[] = "utmpx-1.00"; 71 1.3.2.2 nathanw 72 1.3.2.2 nathanw void 73 1.3.2.2 nathanw setutxent() 74 1.3.2.2 nathanw { 75 1.3.2.4 nathanw 76 1.3.2.2 nathanw (void)memset(&ut, 0, sizeof(ut)); 77 1.3.2.2 nathanw if (fp == NULL) 78 1.3.2.2 nathanw return; 79 1.3.2.2 nathanw (void)fseeko(fp, (off_t)sizeof(ut), SEEK_SET); 80 1.3.2.2 nathanw } 81 1.3.2.2 nathanw 82 1.3.2.2 nathanw 83 1.3.2.2 nathanw void 84 1.3.2.2 nathanw endutxent() 85 1.3.2.2 nathanw { 86 1.3.2.4 nathanw 87 1.3.2.2 nathanw (void)memset(&ut, 0, sizeof(ut)); 88 1.3.2.4 nathanw if (fp != NULL) { 89 1.3.2.2 nathanw (void)fclose(fp); 90 1.3.2.4 nathanw fp = NULL; 91 1.3.2.4 nathanw } 92 1.3.2.2 nathanw } 93 1.3.2.2 nathanw 94 1.3.2.2 nathanw 95 1.3.2.2 nathanw struct utmpx * 96 1.3.2.2 nathanw getutxent() 97 1.3.2.2 nathanw { 98 1.3.2.4 nathanw 99 1.3.2.2 nathanw if (fp == NULL) { 100 1.3.2.2 nathanw struct stat st; 101 1.3.2.2 nathanw 102 1.3.2.2 nathanw if ((fp = fopen(utfile, "r+")) == NULL) 103 1.3.2.3 nathanw if ((fp = fopen(utfile, "w+")) == NULL) 104 1.3.2.3 nathanw if ((fp = fopen(utfile, "r")) == NULL) 105 1.3.2.3 nathanw goto fail; 106 1.3.2.2 nathanw 107 1.3.2.2 nathanw /* get file size in order to check if new file */ 108 1.3.2.2 nathanw if (fstat(fileno(fp), &st) == -1) 109 1.3.2.2 nathanw goto failclose; 110 1.3.2.2 nathanw 111 1.3.2.2 nathanw if (st.st_size == 0) { 112 1.3.2.2 nathanw /* new file, add signature record */ 113 1.3.2.2 nathanw (void)memset(&ut, 0, sizeof(ut)); 114 1.3.2.2 nathanw ut.ut_type = SIGNATURE; 115 1.3.2.2 nathanw (void)memcpy(ut.ut_user, vers, sizeof(vers)); 116 1.3.2.3 nathanw if (fwrite(&ut, sizeof(ut), 1, fp) != 1) 117 1.3.2.2 nathanw goto failclose; 118 1.3.2.2 nathanw } else { 119 1.3.2.2 nathanw /* old file, read signature record */ 120 1.3.2.3 nathanw if (fread(&ut, sizeof(ut), 1, fp) != 1) 121 1.3.2.2 nathanw goto failclose; 122 1.3.2.2 nathanw if (memcmp(ut.ut_user, vers, sizeof(vers)) != 0 || 123 1.3.2.2 nathanw ut.ut_type != SIGNATURE) 124 1.3.2.2 nathanw goto failclose; 125 1.3.2.2 nathanw } 126 1.3.2.2 nathanw } 127 1.3.2.2 nathanw 128 1.3.2.3 nathanw if (fread(&ut, sizeof(ut), 1, fp) != 1) 129 1.3.2.2 nathanw goto fail; 130 1.3.2.2 nathanw 131 1.3.2.2 nathanw return &ut; 132 1.3.2.2 nathanw failclose: 133 1.3.2.2 nathanw (void)fclose(fp); 134 1.3.2.2 nathanw fail: 135 1.3.2.2 nathanw (void)memset(&ut, 0, sizeof(ut)); 136 1.3.2.2 nathanw return NULL; 137 1.3.2.2 nathanw } 138 1.3.2.2 nathanw 139 1.3.2.2 nathanw 140 1.3.2.2 nathanw struct utmpx * 141 1.3.2.2 nathanw getutxid(const struct utmpx *utx) 142 1.3.2.2 nathanw { 143 1.3.2.4 nathanw 144 1.3.2.7 nathanw _DIAGASSERT(utx != NULL); 145 1.3.2.7 nathanw 146 1.3.2.2 nathanw if (utx->ut_type == EMPTY) 147 1.3.2.2 nathanw return NULL; 148 1.3.2.2 nathanw 149 1.3.2.2 nathanw do { 150 1.3.2.2 nathanw if (ut.ut_type == EMPTY) 151 1.3.2.2 nathanw continue; 152 1.3.2.2 nathanw switch (utx->ut_type) { 153 1.3.2.2 nathanw case EMPTY: 154 1.3.2.2 nathanw return NULL; 155 1.3.2.2 nathanw case RUN_LVL: 156 1.3.2.2 nathanw case BOOT_TIME: 157 1.3.2.2 nathanw case OLD_TIME: 158 1.3.2.2 nathanw case NEW_TIME: 159 1.3.2.2 nathanw if (ut.ut_type == utx->ut_type) 160 1.3.2.2 nathanw return &ut; 161 1.3.2.2 nathanw break; 162 1.3.2.2 nathanw case INIT_PROCESS: 163 1.3.2.2 nathanw case LOGIN_PROCESS: 164 1.3.2.2 nathanw case USER_PROCESS: 165 1.3.2.2 nathanw case DEAD_PROCESS: 166 1.3.2.2 nathanw switch (ut.ut_type) { 167 1.3.2.2 nathanw case INIT_PROCESS: 168 1.3.2.2 nathanw case LOGIN_PROCESS: 169 1.3.2.2 nathanw case USER_PROCESS: 170 1.3.2.2 nathanw case DEAD_PROCESS: 171 1.3.2.2 nathanw if (memcmp(ut.ut_id, utx->ut_id, 172 1.3.2.2 nathanw sizeof(ut.ut_id)) == 0) 173 1.3.2.2 nathanw return &ut; 174 1.3.2.2 nathanw break; 175 1.3.2.2 nathanw default: 176 1.3.2.2 nathanw break; 177 1.3.2.2 nathanw } 178 1.3.2.2 nathanw break; 179 1.3.2.2 nathanw default: 180 1.3.2.2 nathanw return NULL; 181 1.3.2.2 nathanw } 182 1.3.2.4 nathanw } while (getutxent() != NULL); 183 1.3.2.2 nathanw return NULL; 184 1.3.2.2 nathanw } 185 1.3.2.2 nathanw 186 1.3.2.2 nathanw 187 1.3.2.2 nathanw struct utmpx * 188 1.3.2.2 nathanw getutxline(const struct utmpx *utx) 189 1.3.2.2 nathanw { 190 1.3.2.4 nathanw 191 1.3.2.7 nathanw _DIAGASSERT(utx != NULL); 192 1.3.2.7 nathanw 193 1.3.2.2 nathanw do { 194 1.3.2.2 nathanw switch (ut.ut_type) { 195 1.3.2.2 nathanw case EMPTY: 196 1.3.2.2 nathanw break; 197 1.3.2.2 nathanw case LOGIN_PROCESS: 198 1.3.2.2 nathanw case USER_PROCESS: 199 1.3.2.2 nathanw if (strncmp(ut.ut_line, utx->ut_line, 200 1.3.2.2 nathanw sizeof(ut.ut_line)) == 0) 201 1.3.2.2 nathanw return &ut; 202 1.3.2.2 nathanw break; 203 1.3.2.2 nathanw default: 204 1.3.2.2 nathanw break; 205 1.3.2.2 nathanw } 206 1.3.2.4 nathanw } while (getutxent() != NULL); 207 1.3.2.2 nathanw return NULL; 208 1.3.2.2 nathanw } 209 1.3.2.2 nathanw 210 1.3.2.2 nathanw 211 1.3.2.2 nathanw struct utmpx * 212 1.3.2.2 nathanw pututxline(const struct utmpx *utx) 213 1.3.2.2 nathanw { 214 1.3.2.2 nathanw struct utmpx temp, *u = NULL; 215 1.3.2.2 nathanw int gotlock = 0; 216 1.3.2.2 nathanw 217 1.3.2.7 nathanw _DIAGASSERT(utx != NULL); 218 1.3.2.7 nathanw 219 1.3.2.2 nathanw if (strcmp(_PATH_UTMPX, utfile) == 0 && geteuid() != 0) 220 1.3.2.2 nathanw return utmp_update(utx); 221 1.3.2.2 nathanw 222 1.3.2.2 nathanw if (utx == NULL) 223 1.3.2.2 nathanw return NULL; 224 1.3.2.2 nathanw 225 1.3.2.2 nathanw (void)memcpy(&temp, utx, sizeof(temp)); 226 1.3.2.2 nathanw 227 1.3.2.2 nathanw if (fp == NULL) { 228 1.3.2.2 nathanw (void)getutxent(); 229 1.3.2.2 nathanw if (fp == NULL) 230 1.3.2.2 nathanw return NULL; 231 1.3.2.2 nathanw } 232 1.3.2.2 nathanw 233 1.3.2.2 nathanw if (getutxid(&temp) == NULL) { 234 1.3.2.2 nathanw setutxent(); 235 1.3.2.2 nathanw if (getutxid(&temp) == NULL) { 236 1.3.2.2 nathanw if (lockf(fileno(fp), F_LOCK, (off_t)0) == -1) 237 1.3.2.2 nathanw return NULL; 238 1.3.2.2 nathanw gotlock++; 239 1.3.2.2 nathanw if (fseeko(fp, (off_t)0, SEEK_END) == -1) 240 1.3.2.2 nathanw goto fail; 241 1.3.2.2 nathanw } 242 1.3.2.2 nathanw } 243 1.3.2.2 nathanw 244 1.3.2.2 nathanw if (!gotlock) { 245 1.3.2.2 nathanw /* we are not appending */ 246 1.3.2.2 nathanw if (fseeko(fp, -(off_t)sizeof(ut), SEEK_CUR) == -1) 247 1.3.2.2 nathanw return NULL; 248 1.3.2.2 nathanw } 249 1.3.2.2 nathanw 250 1.3.2.2 nathanw if (fwrite(&temp, sizeof (temp), 1, fp) != 1) 251 1.3.2.2 nathanw goto fail; 252 1.3.2.2 nathanw 253 1.3.2.2 nathanw if (fflush(fp) == -1) 254 1.3.2.2 nathanw goto fail; 255 1.3.2.2 nathanw 256 1.3.2.2 nathanw u = memcpy(&ut, &temp, sizeof(ut)); 257 1.3.2.2 nathanw fail: 258 1.3.2.2 nathanw if (gotlock) { 259 1.3.2.2 nathanw if (lockf(fileno(fp), F_ULOCK, (off_t)0) == -1) 260 1.3.2.2 nathanw return NULL; 261 1.3.2.2 nathanw } 262 1.3.2.2 nathanw return u; 263 1.3.2.2 nathanw } 264 1.3.2.2 nathanw 265 1.3.2.2 nathanw 266 1.3.2.2 nathanw static struct utmpx * 267 1.3.2.2 nathanw utmp_update(const struct utmpx *utx) 268 1.3.2.2 nathanw { 269 1.3.2.2 nathanw char buf[sizeof(*utx) * 4 + 1]; 270 1.3.2.2 nathanw pid_t pid; 271 1.3.2.2 nathanw int status; 272 1.3.2.2 nathanw 273 1.3.2.7 nathanw _DIAGASSERT(utx != NULL); 274 1.3.2.7 nathanw 275 1.3.2.2 nathanw (void)strvisx(buf, (const char *)(const void *)utx, sizeof(*utx), 276 1.3.2.2 nathanw VIS_WHITE); 277 1.3.2.2 nathanw switch (pid = fork()) { 278 1.3.2.2 nathanw case 0: 279 1.3.2.2 nathanw (void)execl(_PATH_UTMP_UPDATE, 280 1.3.2.8 thorpej strrchr(_PATH_UTMP_UPDATE, '/') + 1, buf, NULL); 281 1.3.2.2 nathanw exit(1); 282 1.3.2.2 nathanw /*NOTREACHED*/ 283 1.3.2.2 nathanw case -1: 284 1.3.2.2 nathanw return NULL; 285 1.3.2.2 nathanw default: 286 1.3.2.2 nathanw if (waitpid(pid, &status, 0) == -1) 287 1.3.2.2 nathanw return NULL; 288 1.3.2.2 nathanw if (WIFEXITED(status) && WEXITSTATUS(status) == 0) 289 1.3.2.2 nathanw return memcpy(&ut, utx, sizeof(ut)); 290 1.3.2.2 nathanw return NULL; 291 1.3.2.2 nathanw } 292 1.3.2.2 nathanw 293 1.3.2.2 nathanw } 294 1.3.2.2 nathanw 295 1.3.2.6 nathanw /* 296 1.3.2.6 nathanw * The following are extensions and not part of the X/Open spec. 297 1.3.2.6 nathanw */ 298 1.3.2.4 nathanw int 299 1.3.2.2 nathanw updwtmpx(const char *file, const struct utmpx *utx) 300 1.3.2.2 nathanw { 301 1.3.2.7 nathanw int fd; 302 1.3.2.7 nathanw 303 1.3.2.7 nathanw _DIAGASSERT(file != NULL); 304 1.3.2.7 nathanw _DIAGASSERT(utx != NULL); 305 1.3.2.7 nathanw 306 1.3.2.7 nathanw fd = open(file, O_WRONLY|O_APPEND|O_EXLOCK); 307 1.3.2.4 nathanw 308 1.3.2.2 nathanw if (fd == -1) { 309 1.3.2.4 nathanw if ((fd = open(file, O_CREAT|O_WRONLY|O_EXLOCK, 0644)) == -1) 310 1.3.2.4 nathanw return -1; 311 1.3.2.2 nathanw (void)memset(&ut, 0, sizeof(ut)); 312 1.3.2.2 nathanw ut.ut_type = SIGNATURE; 313 1.3.2.2 nathanw (void)memcpy(ut.ut_user, vers, sizeof(vers)); 314 1.3.2.6 nathanw if (write(fd, &ut, sizeof(ut)) == -1) 315 1.3.2.6 nathanw return -1; 316 1.3.2.2 nathanw } 317 1.3.2.6 nathanw if (write(fd, utx, sizeof(*utx)) == -1) 318 1.3.2.6 nathanw return -1; 319 1.3.2.6 nathanw if (close(fd) == -1) 320 1.3.2.6 nathanw return -1; 321 1.3.2.4 nathanw return 0; 322 1.3.2.2 nathanw } 323 1.3.2.2 nathanw 324 1.3.2.2 nathanw 325 1.3.2.2 nathanw int 326 1.3.2.2 nathanw utmpxname(const char *fname) 327 1.3.2.2 nathanw { 328 1.3.2.7 nathanw size_t len; 329 1.3.2.7 nathanw 330 1.3.2.7 nathanw _DIAGASSERT(fname != NULL); 331 1.3.2.7 nathanw 332 1.3.2.7 nathanw len = strlen(fname); 333 1.3.2.2 nathanw 334 1.3.2.2 nathanw if (len >= sizeof(utfile)) 335 1.3.2.2 nathanw return 0; 336 1.3.2.2 nathanw 337 1.3.2.2 nathanw /* must end in x! */ 338 1.3.2.2 nathanw if (fname[len - 1] != 'x') 339 1.3.2.2 nathanw return 0; 340 1.3.2.2 nathanw 341 1.3.2.8 thorpej (void)strlcpy(utfile, fname, sizeof(utfile)); 342 1.3.2.2 nathanw endutxent(); 343 1.3.2.2 nathanw return 1; 344 1.3.2.2 nathanw } 345 1.3.2.3 nathanw 346 1.3.2.3 nathanw 347 1.3.2.3 nathanw void 348 1.3.2.3 nathanw getutmp(const struct utmpx *ux, struct utmp *u) 349 1.3.2.3 nathanw { 350 1.3.2.4 nathanw 351 1.3.2.7 nathanw _DIAGASSERT(ux != NULL); 352 1.3.2.7 nathanw _DIAGASSERT(u != NULL); 353 1.3.2.7 nathanw 354 1.3.2.3 nathanw (void)memcpy(u->ut_name, ux->ut_name, sizeof(u->ut_name)); 355 1.3.2.3 nathanw (void)memcpy(u->ut_line, ux->ut_line, sizeof(u->ut_line)); 356 1.3.2.3 nathanw (void)memcpy(u->ut_host, ux->ut_host, sizeof(u->ut_host)); 357 1.3.2.3 nathanw u->ut_time = ux->ut_tv.tv_sec; 358 1.3.2.3 nathanw } 359 1.3.2.3 nathanw 360 1.3.2.3 nathanw void 361 1.3.2.3 nathanw getutmpx(const struct utmp *u, struct utmpx *ux) 362 1.3.2.3 nathanw { 363 1.3.2.4 nathanw 364 1.3.2.7 nathanw _DIAGASSERT(ux != NULL); 365 1.3.2.7 nathanw _DIAGASSERT(u != NULL); 366 1.3.2.7 nathanw 367 1.3.2.3 nathanw (void)memcpy(ux->ut_name, u->ut_name, sizeof(u->ut_name)); 368 1.3.2.3 nathanw (void)memcpy(ux->ut_line, u->ut_line, sizeof(u->ut_line)); 369 1.3.2.3 nathanw (void)memcpy(ux->ut_host, u->ut_host, sizeof(u->ut_host)); 370 1.3.2.3 nathanw ux->ut_tv.tv_sec = u->ut_time; 371 1.3.2.3 nathanw ux->ut_tv.tv_usec = 0; 372 1.3.2.3 nathanw (void)memset(&ux->ut_ss, 0, sizeof(ux->ut_ss)); 373 1.3.2.3 nathanw ux->ut_pid = 0; 374 1.3.2.3 nathanw ux->ut_type = USER_PROCESS; 375 1.3.2.3 nathanw ux->ut_session = 0; 376 1.3.2.3 nathanw ux->ut_exit.e_termination = 0; 377 1.3.2.3 nathanw ux->ut_exit.e_exit = 0; 378 1.3.2.3 nathanw } 379 1.3.2.4 nathanw 380 1.3.2.4 nathanw int 381 1.3.2.4 nathanw lastlogxname(const char *fname) 382 1.3.2.4 nathanw { 383 1.3.2.7 nathanw size_t len; 384 1.3.2.7 nathanw 385 1.3.2.7 nathanw _DIAGASSERT(fname != NULL); 386 1.3.2.7 nathanw 387 1.3.2.7 nathanw len = strlen(fname); 388 1.3.2.4 nathanw 389 1.3.2.4 nathanw if (len >= sizeof(llfile)) 390 1.3.2.4 nathanw return 0; 391 1.3.2.4 nathanw 392 1.3.2.4 nathanw /* must end in x! */ 393 1.3.2.4 nathanw if (fname[len - 1] != 'x') 394 1.3.2.4 nathanw return 0; 395 1.3.2.4 nathanw 396 1.3.2.8 thorpej (void)strlcpy(llfile, fname, sizeof(llfile)); 397 1.3.2.4 nathanw return 1; 398 1.3.2.4 nathanw } 399 1.3.2.4 nathanw 400 1.3.2.4 nathanw struct lastlogx * 401 1.3.2.4 nathanw getlastlogx(uid_t uid, struct lastlogx *ll) 402 1.3.2.4 nathanw { 403 1.3.2.4 nathanw DBT key, data; 404 1.3.2.7 nathanw DB *db; 405 1.3.2.7 nathanw 406 1.3.2.7 nathanw _DIAGASSERT(ll != NULL); 407 1.3.2.7 nathanw 408 1.3.2.7 nathanw db = dbopen(llfile, O_RDONLY|O_SHLOCK, 0, DB_HASH, NULL); 409 1.3.2.4 nathanw 410 1.3.2.4 nathanw if (db == NULL) 411 1.3.2.4 nathanw return NULL; 412 1.3.2.4 nathanw 413 1.3.2.4 nathanw key.data = &uid; 414 1.3.2.4 nathanw key.size = sizeof(uid); 415 1.3.2.4 nathanw 416 1.3.2.4 nathanw if ((db->get)(db, &key, &data, 0) != 0) 417 1.3.2.4 nathanw goto error; 418 1.3.2.4 nathanw 419 1.3.2.4 nathanw if (data.size != sizeof(*ll)) { 420 1.3.2.4 nathanw errno = EFTYPE; 421 1.3.2.4 nathanw goto error; 422 1.3.2.4 nathanw } 423 1.3.2.4 nathanw 424 1.3.2.4 nathanw if (ll == NULL) 425 1.3.2.4 nathanw if ((ll = malloc(sizeof(*ll))) == NULL) 426 1.3.2.4 nathanw goto done; 427 1.3.2.4 nathanw 428 1.3.2.4 nathanw (void)memcpy(ll, data.data, sizeof(*ll)); 429 1.3.2.4 nathanw goto done; 430 1.3.2.4 nathanw error: 431 1.3.2.4 nathanw ll = NULL; 432 1.3.2.4 nathanw done: 433 1.3.2.4 nathanw (db->close)(db); 434 1.3.2.4 nathanw return ll; 435 1.3.2.4 nathanw } 436 1.3.2.4 nathanw 437 1.3.2.4 nathanw int 438 1.3.2.4 nathanw updlastlogx(const char *fname, uid_t uid, struct lastlogx *ll) 439 1.3.2.4 nathanw { 440 1.3.2.4 nathanw DBT key, data; 441 1.3.2.4 nathanw int error = 0; 442 1.3.2.7 nathanw DB *db; 443 1.3.2.7 nathanw 444 1.3.2.7 nathanw _DIAGASSERT(fname != NULL); 445 1.3.2.7 nathanw _DIAGASSERT(ll != NULL); 446 1.3.2.7 nathanw 447 1.3.2.7 nathanw db = dbopen(fname, O_RDWR|O_CREAT|O_EXLOCK, 0, DB_HASH, NULL); 448 1.3.2.4 nathanw 449 1.3.2.4 nathanw if (db == NULL) 450 1.3.2.4 nathanw return -1; 451 1.3.2.4 nathanw 452 1.3.2.4 nathanw key.data = &uid; 453 1.3.2.4 nathanw key.size = sizeof(uid); 454 1.3.2.4 nathanw data.data = ll; 455 1.3.2.4 nathanw data.size = sizeof(*ll); 456 1.3.2.4 nathanw if ((db->put)(db, &key, &data, 0) != 0) 457 1.3.2.4 nathanw error = -1; 458 1.3.2.4 nathanw 459 1.3.2.4 nathanw (db->close)(db); 460 1.3.2.4 nathanw return error; 461 1.3.2.4 nathanw } 462
Indexes created Wed Oct 01 19:09:53 GMT 2025