eject.c revision 1.2
1 1.2 pk /* 2 1.2 pk * Copyright (c) 1995 3 1.2 pk * Matthieu Herrb. All rights reserved. 4 1.2 pk * 5 1.2 pk * Redistribution and use in source and binary forms, with or without 6 1.2 pk * modification, are permitted provided that the following conditions 7 1.2 pk * are met: 8 1.2 pk * 1. Redistributions of source code must retain the above copyright 9 1.2 pk * notice, this list of conditions and the following disclaimer. 10 1.2 pk * 2. Redistributions in binary form must reproduce the above copyright 11 1.2 pk * notice, this list of conditions and the following disclaimer in the 12 1.2 pk * documentation and/or other materials provided with the distribution. 13 1.2 pk * 3. All advertising materials mentioning features or use of this software 14 1.2 pk * must display the following acknowledgement: 15 1.2 pk * This product includes software developed for the NetBSD Project 16 1.2 pk * by Matthieu Herrb. 17 1.2 pk * 4. The name of the author may not be used to endorse or promote products 18 1.2 pk * derived from this software without specific prior written permission. 19 1.2 pk * 20 1.2 pk * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 1.2 pk * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 1.2 pk * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 1.2 pk * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 1.2 pk * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 1.2 pk * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 1.2 pk * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 27 1.2 pk * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 28 1.2 pk * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 1.2 pk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 1.2 pk * SUCH DAMAGE. 31 1.2 pk */ 32 1.2 pk 33 1.2 pk /* 34 1.2 pk * Eject command 35 1.2 pk * 36 1.2 pk * It knows to eject floppies, CD-ROMS and tapes 37 1.2 pk * and tries to unmount file systems first 38 1.2 pk */ 39 1.2 pk 40 1.2 pk #include <sys/param.h> 41 1.2 pk #include <sys/ioctl.h> 42 1.2 pk #include <sys/cdio.h> 43 1.2 pk #include <sys/mtio.h> 44 1.2 pk #include <sys/disklabel.h> 45 1.2 pk #include <sys/ucred.h> 46 1.2 pk #include <sys/mount.h> 47 1.2 pk #include <sys/cdefs.h> 48 1.2 pk 49 1.2 pk #include <stdio.h> 50 1.2 pk #include <stdlib.h> 51 1.2 pk #include <unistd.h> 52 1.2 pk #include <fcntl.h> 53 1.2 pk #include <err.h> 54 1.2 pk #include <string.h> 55 1.2 pk 56 1.2 pk typedef struct DEVTAB { 57 1.2 pk char *name; 58 1.2 pk char *device; 59 1.2 pk char qualifier; 60 1.2 pk u_int type; 61 1.2 pk } DEVTAB; 62 1.2 pk 63 1.2 pk /* 64 1.2 pk * known device nicknames and types 65 1.2 pk * (used for selecting the proper ioctl to eject them) 66 1.2 pk */ 67 1.2 pk #define FLOPPY 0x00000001 68 1.2 pk #define CDROM 0x00000002 69 1.2 pk #define TAPE 0x00010000 70 1.2 pk 71 1.2 pk #define MOUNTABLE(x) ((x) & 0x0000ffff) 72 1.2 pk 73 1.2 pk static DEVTAB devtab[] = { 74 1.2 pk { "diskette", "/dev/fd0", 'a', FLOPPY }, 75 1.2 pk { "diskette0", "/dev/fd0", 'a', FLOPPY }, 76 1.2 pk { "diskette1", "/dev/fd1", 'a', FLOPPY }, 77 1.2 pk { "floppy", "/dev/fd0", 'a', FLOPPY }, 78 1.2 pk { "floppy0", "/dev/fd0", 'a', FLOPPY }, 79 1.2 pk { "floppy1", "/dev/fd1", 'a', FLOPPY }, 80 1.2 pk { "fd", "/dev/fd0", 'a', FLOPPY }, 81 1.2 pk { "fd0", "/dev/fd0", 'a', FLOPPY }, 82 1.2 pk { "fd1", "/dev/fd1", 'a', FLOPPY }, 83 1.2 pk { "cdrom", "/dev/cd0", 'a', CDROM }, 84 1.2 pk { "cdrom0", "/dev/cd0", 'a', CDROM }, 85 1.2 pk { "cdrom1", "/dev/cd1", 'a', CDROM }, 86 1.2 pk { "cd", "/dev/cd0", 'a', CDROM }, 87 1.2 pk { "cd0", "/dev/cd0", 'a', CDROM }, 88 1.2 pk { "cd1", "/dev/cd1", 'a', CDROM }, 89 1.2 pk { "mcd", "/dev/mcd0", 'a', CDROM }, 90 1.2 pk { "mcd0", "/dev/mcd0", 'a', CDROM }, 91 1.2 pk { "mcd1", "/dev/mcd1", 'a', CDROM }, 92 1.2 pk { "tape", "/dev/rst0", '\0', TAPE }, 93 1.2 pk { "tape0", "/dev/rst0", '\0', TAPE }, 94 1.2 pk { "tape1", "/dev/rst1", '\0', TAPE }, 95 1.2 pk { "st", "/dev/rst0", '\0', TAPE }, 96 1.2 pk { "st0", "/dev/rst0", '\0', TAPE }, 97 1.2 pk { "st1", "/dev/rst1", '\0', TAPE }, 98 1.2 pk { "dat", "/dev/rst0", '\0', TAPE }, 99 1.2 pk { "dat0", "/dev/rst0", '\0', TAPE }, 100 1.2 pk { "dat1", "/dev/rst1", '\0', TAPE }, 101 1.2 pk { "exabyte", "/dev/rst0", '\0', TAPE }, 102 1.2 pk { "exabyte0", "/dev/rst0", '\0', TAPE }, 103 1.2 pk { "exabyte1", "/dev/rst1", '\0', TAPE }, 104 1.2 pk { NULL, NULL } 105 1.2 pk }; 106 1.2 pk 107 1.2 pk struct types { 108 1.2 pk char *str; 109 1.2 pk int type; 110 1.2 pk } types[] = { 111 1.2 pk { "diskette", FLOPPY }, 112 1.2 pk { "floppy", FLOPPY }, 113 1.2 pk { "cdrom", CDROM }, 114 1.2 pk { "tape", TAPE }, 115 1.2 pk { NULL, 0 } 116 1.2 pk }; 117 1.2 pk 118 1.2 pk int verbose; 119 1.2 pk 120 1.2 pk /* 121 1.2 pk * remind the syntax of the command to the user 122 1.2 pk */ 123 1.2 pk static void 124 1.2 pk usage() 125 1.2 pk { 126 1.2 pk errx(1, "usage: eject [-n][-f][-t devtype][[-d] raw device | nickname ]"); 127 1.2 pk /*NOTREACHED*/ 128 1.2 pk 129 1.2 pk } 130 1.2 pk 131 1.2 pk 132 1.2 pk /* 133 1.2 pk * given a device nick name, find its associated raw device and type 134 1.2 pk */ 135 1.2 pk static char * 136 1.2 pk device_by_nickname(name, pdevtype, pqualifier) 137 1.2 pk char *name; 138 1.2 pk int *pdevtype; 139 1.2 pk char *pqualifier; 140 1.2 pk { 141 1.2 pk int i; 142 1.2 pk 143 1.2 pk for (i = 0; devtab[i].name != NULL; i++) { 144 1.2 pk if (strcmp(name, devtab[i].name) == 0) { 145 1.2 pk *pdevtype = devtab[i].type; 146 1.2 pk *pqualifier = devtab[i].qualifier; 147 1.2 pk return devtab[i].device; 148 1.2 pk } 149 1.2 pk } 150 1.2 pk *pdevtype = -1; 151 1.2 pk return NULL; 152 1.2 pk } 153 1.2 pk 154 1.2 pk /* 155 1.2 pk * Given a raw device name, find its type and partition tag 156 1.2 pk * from the name. 157 1.2 pk */ 158 1.2 pk static char * 159 1.2 pk device_by_name(device, pdevtype, pqualifier) 160 1.2 pk char *device; 161 1.2 pk int *pdevtype; 162 1.2 pk char *pqualifier; 163 1.2 pk { 164 1.2 pk int i; 165 1.2 pk 166 1.2 pk for (i = 0; devtab[i].name != NULL; i++) { 167 1.2 pk if (strncmp(devtab[i].device, device, 168 1.2 pk strlen(devtab[i].device)) == 0) { 169 1.2 pk *pdevtype = devtab[i].type; 170 1.2 pk *pqualifier = devtab[i].qualifier; 171 1.2 pk return devtab[i].device; 172 1.2 pk } 173 1.2 pk } 174 1.2 pk *pdevtype = -1; 175 1.2 pk return NULL; 176 1.2 pk } 177 1.2 pk 178 1.2 pk /* 179 1.2 pk * eject a floppy 180 1.2 pk */ 181 1.2 pk static void 182 1.2 pk eject_floppy(device) 183 1.2 pk char *device; 184 1.2 pk { 185 1.2 pk #ifdef __i386 186 1.2 pk printf("You may now press the eject button on the floppy drive...\n"); 187 1.2 pk return; 188 1.2 pk #else 189 1.2 pk int fd; 190 1.2 pk 191 1.2 pk fd = open(device, O_RDONLY); 192 1.2 pk if (fd < 0) { 193 1.2 pk err(1, "open %s", device); 194 1.2 pk } 195 1.2 pk if (ioctl(fd, DIOCEJECT, 0) < 0) { 196 1.2 pk err(1, device); 197 1.2 pk } 198 1.2 pk close(fd); 199 1.2 pk #endif 200 1.2 pk } /* eject_floppy */ 201 1.2 pk 202 1.2 pk /* 203 1.2 pk * eject a cd 204 1.2 pk */ 205 1.2 pk static void 206 1.2 pk eject_cdrom(device) 207 1.2 pk char *device; 208 1.2 pk { 209 1.2 pk int fd; 210 1.2 pk 211 1.2 pk fd = open(device, O_RDONLY); 212 1.2 pk if (fd < 0) { 213 1.2 pk err(1, "%s: open", device); 214 1.2 pk } 215 1.2 pk if (ioctl(fd, CDIOCALLOW) < 0) { 216 1.2 pk err(1, "%s: CDIOCALLOW", device); 217 1.2 pk } 218 1.2 pk if (ioctl(fd, CDIOCEJECT, 0) < 0) { 219 1.2 pk err(1, "%s: CDIOCEJECT", device); 220 1.2 pk } 221 1.2 pk if (close(fd) != 0) 222 1.2 pk err(1, "%s: close", device); 223 1.2 pk } /* eject_cdrom */ 224 1.2 pk 225 1.2 pk /* 226 1.2 pk * eject a tape 227 1.2 pk */ 228 1.2 pk static void 229 1.2 pk eject_tape(device) 230 1.2 pk char *device; 231 1.2 pk { 232 1.2 pk int fd; 233 1.2 pk struct mtop mt_com; 234 1.2 pk 235 1.2 pk fd = open(device, O_RDONLY); 236 1.2 pk if (fd < 0) { 237 1.2 pk err(1, "open %s", device); 238 1.2 pk } 239 1.2 pk mt_com.mt_op = MTOFFL; 240 1.2 pk 241 1.2 pk if (ioctl(fd, MTIOCTOP, &mt_com) < 0) { 242 1.2 pk err(1, "%s: MTOFFL", device); 243 1.2 pk } 244 1.2 pk close(fd); 245 1.2 pk } /* eject_tape */ 246 1.2 pk 247 1.2 pk /* 248 1.2 pk * test if partitions of a device are mounted 249 1.2 pk * and unmount them 250 1.2 pk */ 251 1.2 pk static void 252 1.2 pk umount_mounted(device) 253 1.2 pk char *device; 254 1.2 pk { 255 1.2 pk struct statfs *mntbuf; 256 1.2 pk int i, n, l; 257 1.2 pk 258 1.2 pk n = getmntinfo(&mntbuf, MNT_NOWAIT); 259 1.2 pk if (n == 0) { 260 1.2 pk err(1, "getmntinfo"); 261 1.2 pk } 262 1.2 pk l = strlen(device); 263 1.2 pk for (i = 0; i < n; i++) { 264 1.2 pk if (strncmp(device, mntbuf[i].f_mntfromname, l) == 0) { 265 1.2 pk if (verbose) 266 1.2 pk printf("Unmounting: %s\n", 267 1.2 pk mntbuf[i].f_mntonname); 268 1.2 pk if (unmount(mntbuf[i].f_mntonname, 0) < 0) { 269 1.2 pk err(1, "umount %s from %s", 270 1.2 pk mntbuf[i].f_mntfromname, 271 1.2 pk mntbuf[i].f_mntonname); 272 1.2 pk } 273 1.2 pk } 274 1.2 pk } 275 1.2 pk 276 1.2 pk } 277 1.2 pk 278 1.2 pk /* 279 1.2 pk * Eject - ejects various removable devices, including cdrom, tapes, 280 1.2 pk * diskettes 281 1.2 pk */ 282 1.2 pk int 283 1.2 pk main(argc, argv) 284 1.2 pk int argc; 285 1.2 pk char *argv[]; 286 1.2 pk { 287 1.2 pk char device[MAXPATHLEN]; 288 1.2 pk char *devpath; 289 1.2 pk char qualifier; 290 1.2 pk int umount_flag, devtype; 291 1.2 pk int i, ch; 292 1.2 pk 293 1.2 pk /* Default options values */ 294 1.2 pk devpath = NULL; 295 1.2 pk devtype = -1; 296 1.2 pk umount_flag = 1; 297 1.2 pk 298 1.2 pk while ((ch = getopt(argc, argv, "d:fnt:v")) != EOF) { 299 1.2 pk switch (ch) { 300 1.2 pk case 'd': 301 1.2 pk devpath = optarg; 302 1.2 pk break; 303 1.2 pk case 'f': 304 1.2 pk umount_flag = 0; 305 1.2 pk break; 306 1.2 pk case 'n': 307 1.2 pk for (i = 0; devtab[i].name != NULL; i++) { 308 1.2 pk printf("%9s => %s%c\n", 309 1.2 pk devtab[i].name, 310 1.2 pk devtab[i].device, devtab[i].qualifier); 311 1.2 pk } 312 1.2 pk return 0; 313 1.2 pk case 't': 314 1.2 pk for (i = 0; types[i].str != NULL; i++) { 315 1.2 pk if (strcasecmp(optarg, types[i].str) == 0) { 316 1.2 pk devtype = types[i].type; 317 1.2 pk break; 318 1.2 pk } 319 1.2 pk } 320 1.2 pk if (devtype == -1) 321 1.2 pk errx(1, "%s: unknown device type", optarg); 322 1.2 pk break; 323 1.2 pk case 'v': 324 1.2 pk verbose = 1; 325 1.2 pk break; 326 1.2 pk case '?': 327 1.2 pk default: 328 1.2 pk usage(); 329 1.2 pk /*NOTREACHED*/ 330 1.2 pk } 331 1.2 pk } 332 1.2 pk 333 1.2 pk argc -= optind; 334 1.2 pk argv += optind; 335 1.2 pk 336 1.2 pk if (devpath != NULL) { 337 1.2 pk /* device specified with 'd' option */ 338 1.2 pk if (devtype == -1) 339 1.2 pk device_by_name(devpath, &devtype, &qualifier); 340 1.2 pk else 341 1.2 pk qualifier = '\0'; 342 1.2 pk } else { 343 1.2 pk if (argc <= 0) { 344 1.2 pk errx(1, "No device specified"); 345 1.2 pk /* NOTREACHED */ 346 1.2 pk } 347 1.2 pk if (strncmp(argv[0], "/dev/", 5) == 0) { 348 1.2 pk /* 349 1.2 pk * If argument begins with "/dev/", assume 350 1.2 pk * a device name. 351 1.2 pk */ 352 1.2 pk if (devtype == -1) { 353 1.2 pk devpath = device_by_name(argv[0], 354 1.2 pk &devtype, &qualifier); 355 1.2 pk } else { 356 1.2 pk /* Device type specified; use literally */ 357 1.2 pk devpath = argv[0]; 358 1.2 pk qualifier = '\0'; 359 1.2 pk } 360 1.2 pk } else { 361 1.2 pk /* assume a nickname */ 362 1.2 pk devpath = device_by_nickname(argv[0], 363 1.2 pk &devtype, &qualifier); 364 1.2 pk } 365 1.2 pk } 366 1.2 pk 367 1.2 pk if (devpath == NULL) { 368 1.2 pk errx(1, "%s: unknown device", argv[0]); 369 1.2 pk /*NOTREACHED*/ 370 1.2 pk } 371 1.2 pk 372 1.2 pk if (umount_flag && MOUNTABLE(devtype)) { 373 1.2 pk umount_mounted(devpath); 374 1.2 pk } 375 1.2 pk 376 1.2 pk snprintf(device, sizeof(device), "%s%c", devpath, qualifier); 377 1.2 pk if (verbose) 378 1.2 pk printf("Ejecting device `%s'\n", device); 379 1.2 pk switch (devtype) { 380 1.2 pk case FLOPPY: 381 1.2 pk eject_floppy(device); 382 1.2 pk break; 383 1.2 pk case CDROM: 384 1.2 pk eject_cdrom(device); 385 1.2 pk break; 386 1.2 pk case TAPE: 387 1.2 pk eject_tape(device); 388 1.2 pk break; 389 1.2 pk default: 390 1.2 pk errx(1, "impossible... devtype = %d", devtype); 391 1.2 pk } 392 1.2 pk 393 1.2 pk exit(0); 394 1.2 pk } 395
Indexes created Mon Sep 22 10:09:38 GMT 2025