eject.c revision 1.3
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 1.3 thorpej #define DISK 0x00000002 68 1.2 pk #define TAPE 0x00010000 69 1.2 pk 70 1.2 pk #define MOUNTABLE(x) ((x) & 0x0000ffff) 71 1.2 pk 72 1.2 pk static DEVTAB devtab[] = { 73 1.3 thorpej { "diskette", "/dev/fd0", 'a', DISK }, 74 1.3 thorpej { "diskette0", "/dev/fd0", 'a', DISK }, 75 1.3 thorpej { "diskette1", "/dev/fd1", 'a', DISK }, 76 1.3 thorpej { "floppy", "/dev/fd0", 'a', DISK }, 77 1.3 thorpej { "floppy0", "/dev/fd0", 'a', DISK }, 78 1.3 thorpej { "floppy1", "/dev/fd1", 'a', DISK }, 79 1.3 thorpej { "fd", "/dev/fd0", 'a', DISK }, 80 1.3 thorpej { "fd0", "/dev/fd0", 'a', DISK }, 81 1.3 thorpej { "fd1", "/dev/fd1", 'a', DISK }, 82 1.3 thorpej { "cdrom", "/dev/cd0", 'a', DISK }, 83 1.3 thorpej { "cdrom0", "/dev/cd0", 'a', DISK }, 84 1.3 thorpej { "cdrom1", "/dev/cd1", 'a', DISK }, 85 1.3 thorpej { "cd", "/dev/cd0", 'a', DISK }, 86 1.3 thorpej { "cd0", "/dev/cd0", 'a', DISK }, 87 1.3 thorpej { "cd1", "/dev/cd1", 'a', DISK }, 88 1.3 thorpej { "mcd", "/dev/mcd0", 'a', DISK }, 89 1.3 thorpej { "mcd0", "/dev/mcd0", 'a', DISK }, 90 1.3 thorpej { "mcd1", "/dev/mcd1", 'a', DISK }, 91 1.2 pk { "tape", "/dev/rst0", '\0', TAPE }, 92 1.2 pk { "tape0", "/dev/rst0", '\0', TAPE }, 93 1.2 pk { "tape1", "/dev/rst1", '\0', TAPE }, 94 1.2 pk { "st", "/dev/rst0", '\0', TAPE }, 95 1.2 pk { "st0", "/dev/rst0", '\0', TAPE }, 96 1.2 pk { "st1", "/dev/rst1", '\0', TAPE }, 97 1.2 pk { "dat", "/dev/rst0", '\0', TAPE }, 98 1.2 pk { "dat0", "/dev/rst0", '\0', TAPE }, 99 1.2 pk { "dat1", "/dev/rst1", '\0', TAPE }, 100 1.2 pk { "exabyte", "/dev/rst0", '\0', TAPE }, 101 1.2 pk { "exabyte0", "/dev/rst0", '\0', TAPE }, 102 1.2 pk { "exabyte1", "/dev/rst1", '\0', TAPE }, 103 1.2 pk { NULL, NULL } 104 1.2 pk }; 105 1.2 pk 106 1.2 pk struct types { 107 1.2 pk char *str; 108 1.2 pk int type; 109 1.2 pk } types[] = { 110 1.3 thorpej { "diskette", DISK }, 111 1.3 thorpej { "floppy", DISK }, 112 1.3 thorpej { "cdrom", DISK }, 113 1.3 thorpej { "disk", DISK }, 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 1.3 thorpej * eject a disk (including floppy and cdrom) 180 1.2 pk */ 181 1.2 pk static void 182 1.3 thorpej eject_disk(device) 183 1.2 pk char *device; 184 1.2 pk { 185 1.3 thorpej int fd, arg = 0; 186 1.2 pk 187 1.2 pk fd = open(device, O_RDONLY); 188 1.2 pk if (fd < 0) { 189 1.2 pk err(1, "%s: open", device); 190 1.2 pk } 191 1.3 thorpej if (ioctl(fd, DIOCLOCK, (char *)&arg) < 0) { 192 1.3 thorpej err(1, "%s: DIOCLOCK", device); 193 1.2 pk } 194 1.3 thorpej if (ioctl(fd, DIOCEJECT, 0) < 0) { 195 1.3 thorpej err(1, "%s: DIOCEJECT", device); 196 1.2 pk } 197 1.2 pk if (close(fd) != 0) 198 1.2 pk err(1, "%s: close", device); 199 1.3 thorpej } /* eject_disk */ 200 1.2 pk 201 1.2 pk /* 202 1.2 pk * eject a tape 203 1.2 pk */ 204 1.2 pk static void 205 1.2 pk eject_tape(device) 206 1.2 pk char *device; 207 1.2 pk { 208 1.2 pk int fd; 209 1.2 pk struct mtop mt_com; 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, "open %s", device); 214 1.2 pk } 215 1.2 pk mt_com.mt_op = MTOFFL; 216 1.2 pk 217 1.2 pk if (ioctl(fd, MTIOCTOP, &mt_com) < 0) { 218 1.2 pk err(1, "%s: MTOFFL", device); 219 1.2 pk } 220 1.2 pk close(fd); 221 1.2 pk } /* eject_tape */ 222 1.2 pk 223 1.2 pk /* 224 1.2 pk * test if partitions of a device are mounted 225 1.2 pk * and unmount them 226 1.2 pk */ 227 1.2 pk static void 228 1.2 pk umount_mounted(device) 229 1.2 pk char *device; 230 1.2 pk { 231 1.2 pk struct statfs *mntbuf; 232 1.2 pk int i, n, l; 233 1.2 pk 234 1.2 pk n = getmntinfo(&mntbuf, MNT_NOWAIT); 235 1.2 pk if (n == 0) { 236 1.2 pk err(1, "getmntinfo"); 237 1.2 pk } 238 1.2 pk l = strlen(device); 239 1.2 pk for (i = 0; i < n; i++) { 240 1.2 pk if (strncmp(device, mntbuf[i].f_mntfromname, l) == 0) { 241 1.2 pk if (verbose) 242 1.2 pk printf("Unmounting: %s\n", 243 1.2 pk mntbuf[i].f_mntonname); 244 1.2 pk if (unmount(mntbuf[i].f_mntonname, 0) < 0) { 245 1.2 pk err(1, "umount %s from %s", 246 1.2 pk mntbuf[i].f_mntfromname, 247 1.2 pk mntbuf[i].f_mntonname); 248 1.2 pk } 249 1.2 pk } 250 1.2 pk } 251 1.2 pk 252 1.2 pk } 253 1.2 pk 254 1.2 pk /* 255 1.2 pk * Eject - ejects various removable devices, including cdrom, tapes, 256 1.3 thorpej * diskettes, and other removable disks (like ZIP drives) 257 1.2 pk */ 258 1.2 pk int 259 1.2 pk main(argc, argv) 260 1.2 pk int argc; 261 1.2 pk char *argv[]; 262 1.2 pk { 263 1.2 pk char device[MAXPATHLEN]; 264 1.2 pk char *devpath; 265 1.2 pk char qualifier; 266 1.2 pk int umount_flag, devtype; 267 1.2 pk int i, ch; 268 1.2 pk 269 1.2 pk /* Default options values */ 270 1.2 pk devpath = NULL; 271 1.2 pk devtype = -1; 272 1.2 pk umount_flag = 1; 273 1.2 pk 274 1.2 pk while ((ch = getopt(argc, argv, "d:fnt:v")) != EOF) { 275 1.2 pk switch (ch) { 276 1.2 pk case 'd': 277 1.2 pk devpath = optarg; 278 1.2 pk break; 279 1.2 pk case 'f': 280 1.2 pk umount_flag = 0; 281 1.2 pk break; 282 1.2 pk case 'n': 283 1.2 pk for (i = 0; devtab[i].name != NULL; i++) { 284 1.2 pk printf("%9s => %s%c\n", 285 1.2 pk devtab[i].name, 286 1.2 pk devtab[i].device, devtab[i].qualifier); 287 1.2 pk } 288 1.2 pk return 0; 289 1.2 pk case 't': 290 1.2 pk for (i = 0; types[i].str != NULL; i++) { 291 1.2 pk if (strcasecmp(optarg, types[i].str) == 0) { 292 1.2 pk devtype = types[i].type; 293 1.2 pk break; 294 1.2 pk } 295 1.2 pk } 296 1.2 pk if (devtype == -1) 297 1.2 pk errx(1, "%s: unknown device type", optarg); 298 1.2 pk break; 299 1.2 pk case 'v': 300 1.2 pk verbose = 1; 301 1.2 pk break; 302 1.2 pk case '?': 303 1.2 pk default: 304 1.2 pk usage(); 305 1.2 pk /*NOTREACHED*/ 306 1.2 pk } 307 1.2 pk } 308 1.2 pk 309 1.2 pk argc -= optind; 310 1.2 pk argv += optind; 311 1.2 pk 312 1.2 pk if (devpath != NULL) { 313 1.2 pk /* device specified with 'd' option */ 314 1.2 pk if (devtype == -1) 315 1.2 pk device_by_name(devpath, &devtype, &qualifier); 316 1.2 pk else 317 1.2 pk qualifier = '\0'; 318 1.2 pk } else { 319 1.2 pk if (argc <= 0) { 320 1.2 pk errx(1, "No device specified"); 321 1.2 pk /* NOTREACHED */ 322 1.2 pk } 323 1.2 pk if (strncmp(argv[0], "/dev/", 5) == 0) { 324 1.2 pk /* 325 1.2 pk * If argument begins with "/dev/", assume 326 1.2 pk * a device name. 327 1.2 pk */ 328 1.2 pk if (devtype == -1) { 329 1.2 pk devpath = device_by_name(argv[0], 330 1.2 pk &devtype, &qualifier); 331 1.2 pk } else { 332 1.2 pk /* Device type specified; use literally */ 333 1.2 pk devpath = argv[0]; 334 1.2 pk qualifier = '\0'; 335 1.2 pk } 336 1.2 pk } else { 337 1.2 pk /* assume a nickname */ 338 1.2 pk devpath = device_by_nickname(argv[0], 339 1.2 pk &devtype, &qualifier); 340 1.2 pk } 341 1.2 pk } 342 1.2 pk 343 1.2 pk if (devpath == NULL) { 344 1.2 pk errx(1, "%s: unknown device", argv[0]); 345 1.2 pk /*NOTREACHED*/ 346 1.2 pk } 347 1.2 pk 348 1.2 pk if (umount_flag && MOUNTABLE(devtype)) { 349 1.2 pk umount_mounted(devpath); 350 1.2 pk } 351 1.2 pk 352 1.2 pk snprintf(device, sizeof(device), "%s%c", devpath, qualifier); 353 1.2 pk if (verbose) 354 1.2 pk printf("Ejecting device `%s'\n", device); 355 1.2 pk switch (devtype) { 356 1.3 thorpej case DISK: 357 1.3 thorpej eject_disk(device); 358 1.2 pk break; 359 1.2 pk case TAPE: 360 1.2 pk eject_tape(device); 361 1.2 pk break; 362 1.2 pk default: 363 1.2 pk errx(1, "impossible... devtype = %d", devtype); 364 1.2 pk } 365 1.2 pk 366 1.2 pk exit(0); 367 1.2 pk } 368
Indexes created Mon Sep 22 13:09:51 GMT 2025