| File: | src/sbin/scsi/scsi.c |
| Warning: | line 776, column 3 Value stored to 'mode_pars' is never read |
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| 1 | /* $OpenBSD: scsi.c,v 1.31 2021/06/22 14:51:29 jmc Exp $ */ |
| 2 | /* $FreeBSD: scsi.c,v 1.11 1996/04/06 11:00:28 joerg Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Written By Julian ELischer |
| 6 | * Copyright julian Elischer 1993. |
| 7 | * Permission is granted to use or redistribute this file in any way as long |
| 8 | * as this notice remains. Julian Elischer does not guarantee that this file |
| 9 | * is totally correct for any given task and users of this file must |
| 10 | * accept responsibility for any damage that occurs from the application of this |
| 11 | * file. |
| 12 | * |
| 13 | * (julian@tfs.com julian@dialix.oz.au) |
| 14 | * |
| 15 | * User SCSI hooks added by Peter Dufault: |
| 16 | * |
| 17 | * Copyright (c) 1994 HD Associates |
| 18 | * (contact: dufault@hda.com) |
| 19 | * All rights reserved. |
| 20 | * |
| 21 | * Redistribution and use in source and binary forms, with or without |
| 22 | * modification, are permitted provided that the following conditions |
| 23 | * are met: |
| 24 | * 1. Redistributions of source code must retain the above copyright |
| 25 | * notice, this list of conditions and the following disclaimer. |
| 26 | * 2. Redistributions in binary form must reproduce the above copyright |
| 27 | * notice, this list of conditions and the following disclaimer in the |
| 28 | * documentation and/or other materials provided with the distribution. |
| 29 | * 3. The name of HD Associates |
| 30 | * may not be used to endorse or promote products derived from this software |
| 31 | * without specific prior written permission. |
| 32 | * |
| 33 | * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES ``AS IS'' AND |
| 34 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 35 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 36 | * ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES BE LIABLE |
| 37 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 38 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 39 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 40 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 41 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 42 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 43 | * SUCH DAMAGE. |
| 44 | */ |
| 45 | |
| 46 | #include <sys/types.h> |
| 47 | #include <sys/wait.h> |
| 48 | |
| 49 | #include <fcntl.h> |
| 50 | #include <stdio.h> |
| 51 | #include <string.h> |
| 52 | #include <stdlib.h> |
| 53 | #include <unistd.h> |
| 54 | #include <errno(*__errno()).h> |
| 55 | #include <sys/scsiio.h> |
| 56 | #include <ctype.h> |
| 57 | #include <signal.h> |
| 58 | #include <err.h> |
| 59 | #include <paths.h> |
| 60 | |
| 61 | #include "libscsi.h" |
| 62 | |
| 63 | int fd; |
| 64 | int debuglevel; |
| 65 | int debugflag; |
| 66 | int commandflag; |
| 67 | int verbose = 0; |
| 68 | |
| 69 | int modeflag; |
| 70 | int editflag; |
| 71 | int modepage = 0; /* Read this mode page */ |
| 72 | int pagectl = 0; /* Mode sense page control */ |
| 73 | int seconds = 2; |
| 74 | |
| 75 | void procargs(int *argc_p, char ***argv_p); |
| 76 | int iget(void *hook, char *name); |
| 77 | char *cget(void *hook, char *name); |
| 78 | void arg_put(void *hook, int letter, void *arg, int count, char *name); |
| 79 | void mode_sense(int fd, u_char *data, int len, int pc, int page); |
| 80 | void mode_select(int fd, u_char *data, int len, int perm); |
| 81 | int editit(const char *pathname); |
| 82 | |
| 83 | static void |
| 84 | usage(void) |
| 85 | { |
| 86 | fprintf(stderr(&__sF[2]), |
| 87 | "usage: scsi -f device -d debug_level\n" |
| 88 | " scsi -f device -m page [-e] [-P pc]\n" |
| 89 | " scsi -f device [-v] [-s seconds] -c cmd_fmt [arg ...]" |
| 90 | " -o count out_fmt\n" |
| 91 | " [arg ...] -i count in_fmt [arg ...]\n"); |
| 92 | |
| 93 | exit (1); |
| 94 | } |
| 95 | |
| 96 | void |
| 97 | procargs(int *argc_p, char ***argv_p) |
| 98 | { |
| 99 | int argc = *argc_p; |
| 100 | char **argv = *argv_p; |
| 101 | int fflag, ch; |
| 102 | |
| 103 | fflag = 0; |
| 104 | commandflag = 0; |
| 105 | debugflag = 0; |
| 106 | while ((ch = getopt(argc, argv, "cef:d:m:P:s:v")) != -1) { |
| 107 | switch (ch) { |
| 108 | case 'c': |
| 109 | commandflag = 1; |
| 110 | break; |
| 111 | case 'e': |
| 112 | editflag = 1; |
| 113 | break; |
| 114 | case 'f': |
| 115 | if ((fd = scsi_open(optarg, O_RDWR0x0002)) < 0) |
| 116 | err(1, "unable to open device %s", optarg); |
| 117 | fflag = 1; |
| 118 | break; |
| 119 | case 'd': |
| 120 | debuglevel = strtol(optarg, 0, 0); |
| 121 | debugflag = 1; |
| 122 | break; |
| 123 | case 'm': |
| 124 | modeflag = 1; |
| 125 | modepage = strtol(optarg, 0, 0); |
| 126 | break; |
| 127 | case 'P': |
| 128 | pagectl = strtol(optarg, 0, 0); |
| 129 | break; |
| 130 | case 's': |
| 131 | seconds = strtol(optarg, 0, 0); |
| 132 | break; |
| 133 | case 'v': |
| 134 | verbose = 1; |
| 135 | break; |
| 136 | case '?': |
| 137 | default: |
| 138 | usage(); |
| 139 | } |
| 140 | } |
| 141 | *argc_p = argc - optind; |
| 142 | *argv_p = argv + optind; |
| 143 | |
| 144 | if (!fflag) usage(); |
| 145 | } |
| 146 | |
| 147 | /* get_hook: Structure for evaluating args in a callback. |
| 148 | */ |
| 149 | struct get_hook |
| 150 | { |
| 151 | int argc; |
| 152 | char **argv; |
| 153 | int got; |
| 154 | }; |
| 155 | |
| 156 | /* iget: Integer argument callback |
| 157 | */ |
| 158 | int |
| 159 | iget(void *hook, char *name) |
| 160 | { |
| 161 | struct get_hook *h = (struct get_hook *)hook; |
| 162 | int arg; |
| 163 | |
| 164 | if (h->got >= h->argc) |
| 165 | { |
| 166 | fprintf(stderr(&__sF[2]), "Expecting an integer argument.\n"); |
| 167 | usage(); |
| 168 | } |
| 169 | arg = strtol(h->argv[h->got], 0, 0); |
| 170 | h->got++; |
| 171 | |
| 172 | if (verbose && name && *name) |
| 173 | printf("%s: %d\n", name, arg); |
| 174 | |
| 175 | return arg; |
| 176 | } |
| 177 | |
| 178 | /* cget: char * argument callback |
| 179 | */ |
| 180 | char * |
| 181 | cget(void *hook, char *name) |
| 182 | { |
| 183 | struct get_hook *h = (struct get_hook *)hook; |
| 184 | char *arg; |
| 185 | |
| 186 | if (h->got >= h->argc) |
| 187 | { |
| 188 | fprintf(stderr(&__sF[2]), "Expecting a character pointer argument.\n"); |
| 189 | usage(); |
| 190 | } |
| 191 | arg = h->argv[h->got]; |
| 192 | h->got++; |
| 193 | |
| 194 | if (verbose && name) |
| 195 | printf("cget: %s: %s", name, arg); |
| 196 | |
| 197 | return arg; |
| 198 | } |
| 199 | |
| 200 | /* arg_put: "put argument" callback |
| 201 | */ |
| 202 | void arg_put(void *hook, int letter, void *arg, int count, char *name) |
| 203 | { |
| 204 | if (verbose && name && *name) |
| 205 | printf("%s: ", name); |
| 206 | |
| 207 | switch(letter) |
| 208 | { |
| 209 | case 'i': |
| 210 | case 'b': |
| 211 | printf("%ld ", (long)arg); |
| 212 | break; |
| 213 | |
| 214 | case 'c': |
| 215 | case 'z': |
| 216 | { |
| 217 | char *p = malloc(count + 1); |
| 218 | if (p == NULL((void *)0)) |
| 219 | err(1, NULL((void *)0)); |
| 220 | |
| 221 | p[count] = 0; |
| 222 | strncpy(p, (char *)arg, count); |
| 223 | if (letter == 'z') |
| 224 | { |
| 225 | int i; |
| 226 | for (i = count - 1; i >= 0; i--) |
| 227 | if (p[i] == ' ') |
| 228 | p[i] = 0; |
| 229 | else |
| 230 | break; |
| 231 | } |
| 232 | printf("%s ", p); |
| 233 | free(p); |
| 234 | } |
| 235 | |
| 236 | break; |
| 237 | |
| 238 | default: |
| 239 | printf("Unknown format letter: '%c'\n", letter); |
| 240 | } |
| 241 | if (verbose) |
| 242 | putchar('\n')(!__isthreaded ? __sputc('\n', (&__sF[1])) : (putc)('\n', (&__sF[1]))); |
| 243 | } |
| 244 | |
| 245 | /* data_phase: SCSI bus data phase: DATA IN, DATA OUT, or no data transfer. |
| 246 | */ |
| 247 | enum data_phase {none = 0, in, out}; |
| 248 | |
| 249 | /* do_cmd: Send a command to a SCSI device |
| 250 | */ |
| 251 | static void |
| 252 | do_cmd(int fd, char *fmt, int argc, char **argv) |
| 253 | { |
| 254 | struct get_hook h; |
| 255 | scsireq_t *scsireq = scsireq_new(); |
| 256 | enum data_phase data_phase; |
| 257 | int count, amount; |
| 258 | char *data_fmt, *bp; |
| 259 | |
| 260 | h.argc = argc; |
| 261 | h.argv = argv; |
| 262 | h.got = 0; |
| 263 | |
| 264 | scsireq_reset(scsireq); |
| 265 | |
| 266 | scsireq_build_visit(scsireq, 0, 0, 0, fmt, iget, (void *)&h); |
| 267 | |
| 268 | /* Three choices here: |
| 269 | * 1. We've used up all the args and have no data phase. |
| 270 | * 2. We have input data ("-i") |
| 271 | * 3. We have output data ("-o") |
| 272 | */ |
| 273 | |
| 274 | if (h.got >= h.argc) |
| 275 | { |
| 276 | data_phase = none; |
| 277 | count = scsireq->datalen = 0; |
| 278 | } |
| 279 | else |
| 280 | { |
| 281 | char *flag = cget(&h, 0); |
| 282 | |
| 283 | if (strcmp(flag, "-o") == 0) |
| 284 | { |
| 285 | data_phase = out; |
| 286 | scsireq->flags = SCCMD_WRITE0x00000002; |
| 287 | } |
| 288 | else if (strcmp(flag, "-i") == 0) |
| 289 | { |
| 290 | data_phase = in; |
| 291 | scsireq->flags = SCCMD_READ0x00000001; |
| 292 | } |
| 293 | else |
| 294 | { |
| 295 | fprintf(stderr(&__sF[2]), |
| 296 | "Need either \"-i\" or \"-o\" for data phase; not \"%s\".\n", flag); |
| 297 | usage(); |
| 298 | } |
| 299 | |
| 300 | count = scsireq->datalen = iget(&h, 0); |
| 301 | if (count) { |
| 302 | data_fmt = cget(&h, 0); |
| 303 | |
| 304 | scsireq->databuf = malloc(count); |
| 305 | if (scsireq->databuf == NULL((void *)0)) |
| 306 | err(1, NULL((void *)0)); |
| 307 | |
| 308 | if (data_phase == out) { |
| 309 | if (strcmp(data_fmt, "-") == 0) { |
| 310 | bp = (char *)scsireq->databuf; |
| 311 | while (count > 0 && |
| 312 | (amount = read(STDIN_FILENO0, |
| 313 | bp, count)) > 0) { |
| 314 | count -= amount; |
| 315 | bp += amount; |
| 316 | } |
| 317 | if (amount == -1) |
| 318 | err(1, "read"); |
| 319 | else if (amount == 0) { |
| 320 | /* early EOF */ |
| 321 | fprintf(stderr(&__sF[2]), |
| 322 | "Warning: only read %lu bytes out of %lu.\n", |
| 323 | scsireq->datalen - (u_long)count, |
| 324 | scsireq->datalen); |
| 325 | scsireq->datalen -= (u_long)count; |
| 326 | } |
| 327 | } |
| 328 | else |
| 329 | { |
| 330 | bzero(scsireq->databuf, count); |
| 331 | scsireq_encode_visit(scsireq, data_fmt, iget, (void *)&h); |
| 332 | } |
| 333 | } |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | |
| 338 | scsireq->timeout = seconds * 1000; |
| 339 | |
| 340 | if (scsireq_enter(fd, scsireq) == -1) |
| 341 | { |
| 342 | scsi_debug(stderr(&__sF[2]), -1, scsireq); |
| 343 | exit(1); |
| 344 | } |
| 345 | |
| 346 | if (SCSIREQ_ERROR(scsireq)(scsireq->senselen_used || scsireq->status || scsireq-> retsts || scsireq->error)) |
| 347 | scsi_debug(stderr(&__sF[2]), 0, scsireq); |
| 348 | |
| 349 | if (count && data_phase == in) |
| 350 | { |
| 351 | if (strcmp(data_fmt, "-") == 0) /* stdout */ |
| 352 | { |
| 353 | bp = (char *)scsireq->databuf; |
| 354 | while (count > 0 && (amount = write(STDOUT_FILENO1, bp, count)) > 0) |
| 355 | { |
| 356 | count -= amount; |
| 357 | bp += amount; |
| 358 | } |
| 359 | if (amount < 0) |
| 360 | err(1, "write"); |
| 361 | else if (amount == 0) |
| 362 | fprintf(stderr(&__sF[2]), "Warning: wrote only %lu bytes out of %lu.\n", |
| 363 | scsireq->datalen - count, |
| 364 | scsireq->datalen); |
| 365 | |
| 366 | } |
| 367 | else |
| 368 | { |
| 369 | scsireq_decode_visit(scsireq, data_fmt, arg_put, 0); |
| 370 | putchar('\n')(!__isthreaded ? __sputc('\n', (&__sF[1])) : (putc)('\n', (&__sF[1]))); |
| 371 | } |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | void mode_sense(int fd, u_char *data, int len, int pc, int page) |
| 376 | { |
| 377 | scsireq_t *scsireq; |
| 378 | |
| 379 | bzero(data, len); |
| 380 | |
| 381 | scsireq = scsireq_new(); |
| 382 | |
| 383 | if (scsireq_enter(fd, scsireq_build(scsireq, |
| 384 | len, data, SCCMD_READ0x00000001, |
| 385 | "1A 0 v:2 {Page Control} v:6 {Page Code} 0 v:i1 {Allocation Length} 0", |
| 386 | pc, page, len)) == -1) /* Mode sense */ |
| 387 | { |
| 388 | scsi_debug(stderr(&__sF[2]), -1, scsireq); |
| 389 | exit(1); |
| 390 | } |
| 391 | |
| 392 | if (SCSIREQ_ERROR(scsireq)(scsireq->senselen_used || scsireq->status || scsireq-> retsts || scsireq->error)) |
| 393 | { |
| 394 | scsi_debug(stderr(&__sF[2]), 0, scsireq); |
| 395 | exit(1); |
| 396 | } |
| 397 | |
| 398 | free(scsireq); |
| 399 | } |
| 400 | |
| 401 | void mode_select(int fd, u_char *data, int len, int perm) |
| 402 | { |
| 403 | scsireq_t *scsireq; |
| 404 | |
| 405 | scsireq = scsireq_new(); |
| 406 | |
| 407 | if (scsireq_enter(fd, scsireq_build(scsireq, |
| 408 | len, data, SCCMD_WRITE0x00000002, |
| 409 | "15 0:7 v:1 {SP} 0 0 v:i1 {Allocation Length} 0", perm, len)) == -1) /* Mode select */ |
| 410 | { |
| 411 | scsi_debug(stderr(&__sF[2]), -1, scsireq); |
| 412 | exit(1); |
| 413 | } |
| 414 | |
| 415 | if (SCSIREQ_ERROR(scsireq)(scsireq->senselen_used || scsireq->status || scsireq-> retsts || scsireq->error)) |
| 416 | { |
| 417 | scsi_debug(stderr(&__sF[2]), 0, scsireq); |
| 418 | exit(1); |
| 419 | } |
| 420 | |
| 421 | free(scsireq); |
| 422 | } |
| 423 | |
| 424 | |
| 425 | #define START_ENTRY'{' '{' |
| 426 | #define END_ENTRY'}' '}' |
| 427 | |
| 428 | static void |
| 429 | skipwhite(FILE *f) |
| 430 | { |
| 431 | int c; |
| 432 | |
| 433 | skip_again: |
| 434 | |
| 435 | while (isspace(c = getc(f)(!__isthreaded ? (--(f)->_r < 0 ? __srget(f) : (int)(*( f)->_p++)) : (getc)(f)))) |
| 436 | continue; |
| 437 | |
| 438 | if (c == '#') { |
| 439 | while ((c = getc(f)(!__isthreaded ? (--(f)->_r < 0 ? __srget(f) : (int)(*( f)->_p++)) : (getc)(f))) != '\n' && c != EOF(-1)) |
| 440 | continue; |
| 441 | goto skip_again; |
| 442 | } |
| 443 | |
| 444 | ungetc(c, f); |
| 445 | } |
| 446 | |
| 447 | /* mode_lookup: Lookup a format description for a given page. |
| 448 | */ |
| 449 | char *mode_db = "/usr/share/misc/scsi_modes"; |
| 450 | static char *mode_lookup(int page) |
| 451 | { |
| 452 | char *new_db; |
| 453 | FILE *modes; |
| 454 | int match, next, found, c; |
| 455 | static char fmt[1024]; /* XXX This should be with strealloc */ |
| 456 | int page_desc; |
| 457 | new_db = getenv("SCSI_MODES"); |
| 458 | |
| 459 | if (new_db) |
| 460 | mode_db = new_db; |
| 461 | |
| 462 | modes = fopen(mode_db, "r"); |
| 463 | if (modes == NULL((void *)0)) |
| 464 | return 0; |
| 465 | |
| 466 | next = 0; |
| 467 | found = 0; |
| 468 | |
| 469 | while (!found) { |
| 470 | |
| 471 | skipwhite(modes); |
| 472 | |
| 473 | if (fscanf(modes, "%i", &page_desc) != 1) |
| 474 | break; |
| 475 | |
| 476 | if (page_desc == page) |
| 477 | found = 1; |
| 478 | |
| 479 | skipwhite(modes); |
| 480 | if (getc(modes)(!__isthreaded ? (--(modes)->_r < 0 ? __srget(modes) : ( int)(*(modes)->_p++)) : (getc)(modes)) != START_ENTRY'{') { |
| 481 | errx(1, "Expected %c", START_ENTRY'{'); |
| 482 | } |
| 483 | |
| 484 | match = 1; |
| 485 | while (match != 0) { |
| 486 | c = getc(modes)(!__isthreaded ? (--(modes)->_r < 0 ? __srget(modes) : ( int)(*(modes)->_p++)) : (getc)(modes)); |
| 487 | if (c == EOF(-1)) |
| 488 | fprintf(stderr(&__sF[2]), "Expected %c.\n", END_ENTRY'}'); |
| 489 | |
| 490 | if (c == START_ENTRY'{') { |
| 491 | match++; |
| 492 | } |
| 493 | if (c == END_ENTRY'}') { |
| 494 | match--; |
| 495 | if (match == 0) |
| 496 | break; |
| 497 | } |
| 498 | if (found && c != '\n') { |
| 499 | if (next >= sizeof(fmt)) { |
| 500 | errx(1, "Stupid program: Buffer overflow.\n"); |
| 501 | } |
| 502 | |
| 503 | fmt[next++] = (u_char)c; |
| 504 | } |
| 505 | } |
| 506 | } |
| 507 | fclose(modes); |
| 508 | fmt[next] = 0; |
| 509 | |
| 510 | return (found) ? fmt : 0; |
| 511 | } |
| 512 | |
| 513 | /* -------- edit: Mode Select Editor --------- |
| 514 | */ |
| 515 | struct editinfo |
| 516 | { |
| 517 | long can_edit; |
| 518 | long default_value; |
| 519 | } editinfo[64]; /* XXX Bogus fixed size */ |
| 520 | |
| 521 | static int editind; |
| 522 | volatile int edit_opened; |
| 523 | static FILE *edit_file; |
| 524 | static char edit_name[L_tmpnam1024]; |
| 525 | |
| 526 | static void |
| 527 | edit_rewind(void) |
| 528 | { |
| 529 | editind = 0; |
| 530 | } |
| 531 | |
| 532 | static void |
| 533 | edit_done(void) |
| 534 | { |
| 535 | int opened; |
| 536 | |
| 537 | sigset_t all, prev; |
| 538 | sigfillset(&all); |
| 539 | |
| 540 | (void)sigprocmask(SIG_SETMASK3, &all, &prev); |
| 541 | |
| 542 | opened = (int)edit_opened; |
| 543 | edit_opened = 0; |
| 544 | |
| 545 | (void)sigprocmask(SIG_SETMASK3, &prev, 0); |
| 546 | |
| 547 | if (opened) |
| 548 | { |
| 549 | if (fclose(edit_file)) |
| 550 | perror(edit_name); |
| 551 | if (unlink(edit_name)) |
| 552 | perror(edit_name); |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | static void |
| 557 | edit_init(void) |
| 558 | { |
| 559 | int fd; |
| 560 | |
| 561 | edit_rewind(); |
| 562 | strlcpy(edit_name, "/var/tmp/scXXXXXXXX", sizeof edit_name); |
| 563 | if ((fd = mkstemp(edit_name)) == -1) |
| 564 | err(1, "mkstemp"); |
| 565 | if ( (edit_file = fdopen(fd, "w+")) == 0) |
| 566 | err(1, "fdopen"); |
| 567 | edit_opened = 1; |
| 568 | |
| 569 | atexit(edit_done); |
| 570 | } |
| 571 | |
| 572 | static void |
| 573 | edit_check(void *hook, int letter, void *arg, int count, char *name) |
| 574 | { |
| 575 | if (letter != 'i' && letter != 'b') { |
| 576 | errx(1, "Can't edit format %c.\n", letter); |
| 577 | } |
| 578 | |
| 579 | if (editind >= sizeof(editinfo) / sizeof(editinfo[0])) { |
| 580 | errx(1, "edit table overflow"); |
| 581 | } |
| 582 | editinfo[editind].can_edit = ((long)arg != 0); |
| 583 | editind++; |
| 584 | } |
| 585 | |
| 586 | static void |
| 587 | edit_defaults(void *hook, int letter, void *arg, int count, char *name) |
| 588 | { |
| 589 | if (letter != 'i' && letter != 'b') { |
| 590 | errx(1, "Can't edit format %c.\n", letter); |
| 591 | } |
| 592 | |
| 593 | editinfo[editind].default_value = ((long)arg); |
| 594 | editind++; |
| 595 | } |
| 596 | |
| 597 | static void |
| 598 | edit_report(void *hook, int letter, void *arg, int count, char *name) |
| 599 | { |
| 600 | if (editinfo[editind].can_edit) { |
| 601 | if (letter != 'i' && letter != 'b') { |
| 602 | errx(1, "Can't report format %c.\n", letter); |
| 603 | } |
| 604 | |
| 605 | fprintf(edit_file, "%s: %ld\n", name, (long)arg); |
| 606 | } |
| 607 | |
| 608 | editind++; |
| 609 | } |
| 610 | |
| 611 | static int |
| 612 | edit_get(void *hook, char *name) |
| 613 | { |
| 614 | int arg = editinfo[editind].default_value; |
| 615 | |
| 616 | if (editinfo[editind].can_edit) { |
| 617 | char line[80]; |
| 618 | size_t len; |
| 619 | if (fgets(line, sizeof(line), edit_file) == NULL((void *)0)) |
| 620 | err(1, "fgets"); |
| 621 | |
| 622 | len = strlen(line); |
| 623 | if (len && line[len - 1] == '\n') |
| 624 | line[len - 1] = '\0'; |
| 625 | |
| 626 | if (strncmp(name, line, strlen(name)) != 0) { |
| 627 | errx(1, "Expected \"%s\" and read \"%s\"\n", |
| 628 | name, line); |
| 629 | } |
| 630 | |
| 631 | arg = strtoul(line + strlen(name) + 2, 0, 0); |
| 632 | } |
| 633 | |
| 634 | editind++; |
| 635 | return arg; |
| 636 | } |
| 637 | |
| 638 | int |
| 639 | editit(const char *pathname) |
| 640 | { |
| 641 | char *argp[] = {"sh", "-c", NULL((void *)0), NULL((void *)0)}, *ed, *p; |
| 642 | sig_t sighup, sigint, sigquit; |
| 643 | pid_t pid; |
| 644 | int st; |
| 645 | |
| 646 | ed = getenv("VISUAL"); |
| 647 | if (ed == NULL((void *)0) || ed[0] == '\0') |
| 648 | ed = getenv("EDITOR"); |
| 649 | if (ed == NULL((void *)0) || ed[0] == '\0') |
| 650 | ed = _PATH_VI"/usr/bin/vi"; |
| 651 | if (asprintf(&p, "%s %s", ed, pathname) == -1) |
| 652 | return (-1); |
| 653 | argp[2] = p; |
| 654 | |
| 655 | top: |
| 656 | sighup = signal(SIGHUP1, SIG_IGN(void (*)(int))1); |
| 657 | sigint = signal(SIGINT2, SIG_IGN(void (*)(int))1); |
| 658 | sigquit = signal(SIGQUIT3, SIG_IGN(void (*)(int))1); |
| 659 | if ((pid = fork()) == -1) { |
| 660 | int saved_errno = errno(*__errno()); |
| 661 | |
| 662 | (void)signal(SIGHUP1, sighup); |
| 663 | (void)signal(SIGINT2, sigint); |
| 664 | (void)signal(SIGQUIT3, sigquit); |
| 665 | if (saved_errno == EAGAIN35) { |
| 666 | sleep(1); |
| 667 | goto top; |
| 668 | } |
| 669 | free(p); |
| 670 | errno(*__errno()) = saved_errno; |
| 671 | return (-1); |
| 672 | } |
| 673 | if (pid == 0) { |
| 674 | execv(_PATH_BSHELL"/bin/sh", argp); |
| 675 | _exit(127); |
| 676 | } |
| 677 | free(p); |
| 678 | for (;;) { |
| 679 | if (waitpid(pid, &st, 0) == -1) { |
| 680 | if (errno(*__errno()) != EINTR4) |
| 681 | return (-1); |
| 682 | } else |
| 683 | break; |
| 684 | } |
| 685 | (void)signal(SIGHUP1, sighup); |
| 686 | (void)signal(SIGINT2, sigint); |
| 687 | (void)signal(SIGQUIT3, sigquit); |
| 688 | if (!WIFEXITED(st)(((st) & 0177) == 0) || WEXITSTATUS(st)(int)(((unsigned)(st) >> 8) & 0xff) != 0) { |
| 689 | errno(*__errno()) = ECHILD10; |
| 690 | return (-1); |
| 691 | } |
| 692 | return (0); |
| 693 | } |
| 694 | |
| 695 | static void |
| 696 | mode_edit(int fd, int page, int edit, int argc, char *argv[]) |
| 697 | { |
| 698 | int i; |
| 699 | u_char data[255]; |
| 700 | u_char *mode_pars; |
| 701 | struct mode_header |
| 702 | { |
| 703 | u_char mdl; /* Mode data length */ |
| 704 | u_char medium_type; |
| 705 | u_char dev_spec_par; |
| 706 | u_char bdl; /* Block descriptor length */ |
| 707 | }; |
| 708 | |
| 709 | struct mode_page_header |
| 710 | { |
| 711 | u_char page_code; |
| 712 | u_char page_length; |
| 713 | }; |
| 714 | |
| 715 | struct mode_header *mh; |
| 716 | struct mode_page_header *mph; |
| 717 | |
| 718 | char *fmt = mode_lookup(page); |
| 719 | if (!fmt && verbose) { |
| 720 | fprintf(stderr(&__sF[2]), |
| 721 | "No mode data base entry in \"%s\" for page %d; binary %s only.\n", |
| 722 | mode_db, page, (edit ? "edit" : "display")); |
| 723 | } |
| 724 | |
| 725 | if (edit) { |
| 726 | if (!fmt) { |
| 727 | errx(1, "Sorry: can't edit without a format.\n"); |
| 728 | } |
| 729 | |
| 730 | if (pagectl != 0 && pagectl != 3) { |
| 731 | errx(1, |
| 732 | "It only makes sense to edit page 0 (current) or page 3 (saved values)\n"); |
| 733 | } |
| 734 | |
| 735 | verbose = 1; |
| 736 | |
| 737 | mode_sense(fd, data, sizeof(data), 1, page); |
| 738 | |
| 739 | mh = (struct mode_header *)data; |
| 740 | mph = (struct mode_page_header *) |
| 741 | (((char *)mh) + sizeof(*mh) + mh->bdl); |
| 742 | |
| 743 | mode_pars = (char *)mph + sizeof(*mph); |
| 744 | |
| 745 | edit_init(); |
| 746 | scsireq_buff_decode_visit(mode_pars, mh->mdl, |
| 747 | fmt, edit_check, 0); |
| 748 | |
| 749 | mode_sense(fd, data, sizeof(data), 0, page); |
| 750 | |
| 751 | edit_rewind(); |
| 752 | scsireq_buff_decode_visit(mode_pars, mh->mdl, |
| 753 | fmt, edit_defaults, 0); |
| 754 | |
| 755 | edit_rewind(); |
| 756 | scsireq_buff_decode_visit(mode_pars, mh->mdl, |
| 757 | fmt, edit_report, 0); |
| 758 | |
| 759 | fclose(edit_file); |
| 760 | if (editit(edit_name) == -1 && errno(*__errno()) != ECHILD10) |
| 761 | err(1, "edit %s", edit_name); |
| 762 | if ((edit_file = fopen(edit_name, "r")) == NULL((void *)0)) |
| 763 | err(1, "open %s", edit_name); |
| 764 | |
| 765 | edit_rewind(); |
| 766 | scsireq_buff_encode_visit(mode_pars, mh->mdl, |
| 767 | fmt, edit_get, 0); |
| 768 | |
| 769 | /* Eliminate block descriptors: |
| 770 | */ |
| 771 | bcopy((char *)mph, ((char *)mh) + sizeof(*mh), |
| 772 | sizeof(*mph) + mph->page_length); |
| 773 | |
| 774 | mh->bdl = 0; |
| 775 | mph = (struct mode_page_header *) (((char *)mh) + sizeof(*mh)); |
| 776 | mode_pars = ((char *)mph) + 2; |
Value stored to 'mode_pars' is never read | |
| 777 | |
| 778 | #if 0 |
| 779 | /* Turn this on to see what you're sending to the |
| 780 | * device: |
| 781 | */ |
| 782 | edit_rewind(); |
| 783 | scsireq_buff_decode_visit(mode_pars, |
| 784 | mh->mdl, fmt, arg_put, 0); |
| 785 | #endif |
| 786 | |
| 787 | edit_done(); |
| 788 | |
| 789 | /* Make it permanent if pageselect is three. |
| 790 | */ |
| 791 | |
| 792 | mph->page_code &= ~0xC0; /* Clear PS and RESERVED */ |
| 793 | mh->mdl = 0; /* Reserved for mode select */ |
| 794 | |
| 795 | mode_select(fd, (char *)mh, |
| 796 | sizeof(*mh) + mh->bdl + sizeof(*mph) + mph->page_length, |
| 797 | (pagectl == 3)); |
| 798 | |
| 799 | exit(0); |
| 800 | } |
| 801 | |
| 802 | mode_sense(fd, data, sizeof(data), pagectl, page); |
| 803 | |
| 804 | /* Skip over the block descriptors. |
| 805 | */ |
| 806 | mh = (struct mode_header *)data; |
| 807 | mph = (struct mode_page_header *)(((char *)mh) + sizeof(*mh) + mh->bdl); |
| 808 | mode_pars = (char *)mph + sizeof(*mph); |
| 809 | |
| 810 | if (!fmt) { |
| 811 | for (i = 0; i < mh->mdl; i++) { |
| 812 | printf("%02x%c",mode_pars[i], |
| 813 | (((i + 1) % 8) == 0) ? '\n' : ' '); |
| 814 | } |
| 815 | putc('\n', stdout)(!__isthreaded ? __sputc('\n', (&__sF[1])) : (putc)('\n', (&__sF[1]))); |
| 816 | } else { |
| 817 | verbose = 1; |
| 818 | scsireq_buff_decode_visit(mode_pars, |
| 819 | mh->mdl, fmt, arg_put, 0); |
| 820 | } |
| 821 | } |
| 822 | |
| 823 | int |
| 824 | main(int argc, char **argv) |
| 825 | { |
| 826 | procargs(&argc,&argv); |
| 827 | |
| 828 | /* XXX This has grown to the point that it should be cleaned up. |
| 829 | */ |
| 830 | if (debugflag) { |
| 831 | if (ioctl(fd,SCIOCDEBUG((unsigned long)0x80000000 | ((sizeof(int) & 0x1fff) << 16) | ((('Q')) << 8) | ((2))),&debuglevel) == -1) |
| 832 | err(1, "SCIOCDEBUG"); |
| 833 | } else if (commandflag) { |
| 834 | char *fmt; |
| 835 | |
| 836 | if (argc < 1) { |
| 837 | fprintf(stderr(&__sF[2]), "Need the command format string.\n"); |
| 838 | usage(); |
| 839 | } |
| 840 | |
| 841 | |
| 842 | fmt = argv[0]; |
| 843 | |
| 844 | argc -= 1; |
| 845 | argv += 1; |
| 846 | |
| 847 | do_cmd(fd, fmt, argc, argv); |
| 848 | } else if (modeflag) |
| 849 | mode_edit(fd, modepage, editflag, argc, argv); |
| 850 | |
| 851 | exit(0); |
| 852 | } |