usr.sbin/sesutil/sesutil.c

   1 /*-
   2  * Copyright (c) 2015 Baptiste Daroussin <bapt@FreeBSD.org>
   3  * Copyright (c) 2015 Allan Jude <allanjude@FreeBSD.org>
   4  * Copyright (c) 2000 by Matthew Jacob
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer
  12  *    in this position and unchanged.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <sys/endian.h>
  33 #include <sys/param.h>
  34 #include <sys/ioctl.h>
  35 #include <sys/types.h>
  36
  37 #include <err.h>
  38 #include <errno.h>
  39 #include <fcntl.h>
  40 #include <getopt.h>
  41 #include <glob.h>
  42 #include <stdbool.h>
  43 #include <stddef.h>
  44 #include <stdint.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #include <unistd.h>
  49 #include <libxo/xo.h>
  50
  51 #include <cam/scsi/scsi_enc.h>
  52
  53 #include "eltsub.h"
  54
  55 #define SESUTIL_XO_VERSION      "1"
  56
  57 static int encstatus(int argc, char **argv);
  58 static int fault(int argc, char **argv);
  59 static int locate(int argc, char **argv);
  60 static int objmap(int argc, char **argv);
  61 static int sesled(int argc, char **argv, bool fault);
  62 static void sesutil_print(bool *title, const char *fmt, ...) __printflike(2,3);
  63
  64 static struct command {
  65         const char *name;
  66         const char *param;
  67         const char *desc;
  68         int (*exec)(int argc, char **argv);
  69 } cmds[] = {
  70         { "fault",
  71             "(<disk>|<sesid>|all) (on|off)",
  72             "Change the state of the fault LED associated with a disk",
  73             fault },
  74         { "locate",
  75             "(<disk>|<sesid>|all) (on|off)",
  76             "Change the state of the locate LED associated with a disk",
  77             locate },
  78         { "map", "",
  79             "Print a map of the devices managed by the enclosure", objmap } ,
  80         { "status", "", "Print the status of the enclosure",
  81             encstatus },
  82 };
  83
  84 static const int nbcmds = nitems(cmds);
  85 static const char *uflag;
  86
  87 static void
  88 usage(FILE *out, const char *subcmd)
  89 {
  90         int i;
  91
  92         if (subcmd == NULL) {
  93                 fprintf(out, "Usage: %s [-u /dev/ses<N>] <command> [options]\n",
  94                     getprogname());
  95                 fprintf(out, "Commands supported:\n");
  96         }
  97         for (i = 0; i < nbcmds; i++) {
  98                 if (subcmd != NULL) {
  99                         if (strcmp(subcmd, cmds[i].name) == 0) {
 100                                 fprintf(out, "Usage: %s %s [-u /dev/ses<N>] "
 101                                     "%s\n\t%s\n", getprogname(), subcmd,
 102                                     cmds[i].param, cmds[i].desc);
 103                                 break;
 104                         }
 105                         continue;
 106                 }
 107                 fprintf(out, "    %-12s%s\n\t\t%s\n\n", cmds[i].name,
 108                     cmds[i].param, cmds[i].desc);
 109         }
 110
 111         exit(EXIT_FAILURE);
 112 }
 113
 114 static void
 115 do_led(int fd, unsigned int idx, bool onoff, bool setfault)
 116 {
 117         encioc_elm_status_t o;
 118
 119         o.elm_idx = idx;
 120         if (ioctl(fd, ENCIOC_GETELMSTAT, (caddr_t) &o) < 0) {
 121                 close(fd);
 122                 xo_err(EXIT_FAILURE, "ENCIOC_GETELMSTAT");
 123         }
 124         o.cstat[0] |= 0x80;
 125         if (setfault) {
 126                 if (onoff)
 127                         o.cstat[3] |= 0x20;
 128                 else
 129                         o.cstat[3] &= 0xdf;
 130         } else {
 131                 if (onoff)
 132                         o.cstat[2] |= 0x02;
 133                 else
 134                         o.cstat[2] &= 0xfd;
 135         }
 136
 137         if (ioctl(fd, ENCIOC_SETELMSTAT, (caddr_t) &o) < 0) {
 138                 close(fd);
 139                 xo_err(EXIT_FAILURE, "ENCIOC_SETELMSTAT");
 140         }
 141 }
 142
 143 static bool
 144 disk_match(const char *devnames, const char *disk, size_t len)
 145 {
 146         const char *dname;
 147
 148         dname = devnames;
 149         while ((dname = strstr(dname, disk)) != NULL) {
 150                 if (dname[len] == '\0' || dname[len] == ',') {
 151                         return (true);
 152                 }
 153                 dname++;
 154         }
 155
 156         return (false);
 157 }
 158
 159 static int
 160 sesled(int argc, char **argv, bool setfault)
 161 {
 162         encioc_elm_devnames_t objdn;
 163         encioc_element_t *objp;
 164         glob_t g;
 165         char *disk, *endptr;
 166         size_t len, i, ndisks;
 167         int fd;
 168         unsigned int nobj, j, sesid;
 169         bool all, isses, onoff;
 170
 171         isses = false;
 172         all = false;
 173         onoff = false;
 174
 175         if (argc != 3) {
 176                 usage(stderr, (setfault ? "fault" : "locate"));
 177         }
 178
 179         disk = argv[1];
 180
 181         sesid = strtoul(disk, &endptr, 10);
 182         if (*endptr == '\0') {
 183                 endptr = strrchr(uflag, '*');
 184                 if (endptr != NULL && *endptr == '*') {
 185                         xo_warnx("Must specifying a SES device (-u) to use a SES "
 186                             "id# to identify a disk");
 187                         usage(stderr, (setfault ? "fault" : "locate"));
 188                 }
 189                 isses = true;
 190         }
 191
 192         if (strcmp(argv[2], "on") == 0) {
 193                 onoff = true;
 194         } else if (strcmp(argv[2], "off") == 0) {
 195                 onoff = false;
 196         } else {
 197                 usage(stderr, (setfault ? "fault" : "locate"));
 198         }
 199
 200         if (strcmp(disk, "all") == 0) {
 201                 all = true;
 202         }
 203         len = strlen(disk);
 204
 205         /* Get the list of ses devices */
 206         if (glob((uflag != NULL ? uflag : "/dev/ses[0-9]*"), 0, NULL, &g) ==
 207             GLOB_NOMATCH) {
 208                 globfree(&g);
 209                 xo_errx(EXIT_FAILURE, "No SES devices found");
 210         }
 211
 212         ndisks = 0;
 213         for (i = 0; i < g.gl_pathc; i++) {
 214                 /* ensure we only got numbers after ses */
 215                 if (strspn(g.gl_pathv[i] + 8, "0123456789") !=
 216                     strlen(g.gl_pathv[i] + 8)) {
 217                         continue;
 218                 }
 219                 if ((fd = open(g.gl_pathv[i], O_RDWR)) < 0) {
 220                         /*
 221                          * Don't treat non-access errors as critical if we are
 222                          * accessing all devices
 223                          */
 224                         if (errno == EACCES && g.gl_pathc > 1) {
 225                                 xo_err(EXIT_FAILURE, "unable to access SES device");
 226                         }
 227                         xo_warn("unable to access SES device: %s", g.gl_pathv[i]);
 228                         continue;
 229                 }
 230
 231                 if (ioctl(fd, ENCIOC_GETNELM, (caddr_t) &nobj) < 0) {
 232                         close(fd);
 233                         xo_err(EXIT_FAILURE, "ENCIOC_GETNELM");
 234                 }
 235
 236                 objp = calloc(nobj, sizeof(encioc_element_t));
 237                 if (objp == NULL) {
 238                         close(fd);
 239                         xo_err(EXIT_FAILURE, "calloc()");
 240                 }
 241
 242                 if (ioctl(fd, ENCIOC_GETELMMAP, (caddr_t) objp) < 0) {
 243                         close(fd);
 244                         xo_err(EXIT_FAILURE, "ENCIOC_GETELMMAP");
 245                 }
 246
 247                 if (isses) {
 248                         if (sesid > nobj) {
 249                                 close(fd);
 250                                 xo_errx(EXIT_FAILURE,
 251                                      "Requested SES ID does not exist");
 252                         }
 253                         do_led(fd, sesid, onoff, setfault);
 254                         ndisks++;
 255                         close(fd);
 256                         break;
 257                 }
 258                 for (j = 0; j < nobj; j++) {
 259                         if (all) {
 260                                 do_led(fd, objp[j].elm_idx, onoff, setfault);
 261                                 continue;
 262                         }
 263                         memset(&objdn, 0, sizeof(objdn));
 264                         objdn.elm_idx = objp[j].elm_idx;
 265                         objdn.elm_names_size = 128;
 266                         objdn.elm_devnames = calloc(128, sizeof(char));
 267                         if (objdn.elm_devnames == NULL) {
 268                                 close(fd);
 269                                 xo_err(EXIT_FAILURE, "calloc()");
 270                         }
 271                         if (ioctl(fd, ENCIOC_GETELMDEVNAMES,
 272                             (caddr_t) &objdn) <0) {
 273                                 continue;
 274                         }
 275                         if (objdn.elm_names_len > 0) {
 276                                 if (disk_match(objdn.elm_devnames, disk, len)) {
 277                                         do_led(fd, objdn.elm_idx,
 278                                             onoff, setfault);
 279                                         ndisks++;
 280                                         break;
 281                                 }
 282                         }
 283                 }
 284                 free(objp);
 285                 close(fd);
 286         }
 287         globfree(&g);
 288         if (ndisks == 0 && all == false) {
 289                 xo_errx(EXIT_FAILURE, "Count not find the SES id of device '%s'",
 290                     disk);
 291         }
 292
 293         return (EXIT_SUCCESS);
 294 }
 295
 296 static int
 297 locate(int argc, char **argv)
 298 {
 299
 300         return (sesled(argc, argv, false));
 301 }
 302
 303 static int
 304 fault(int argc, char **argv)
 305 {
 306
 307         return (sesled(argc, argv, true));
 308 }
 309
 310 #define TEMPERATURE_OFFSET 20
 311 static void
 312 sesutil_print(bool *title, const char *fmt, ...)
 313 {
 314         va_list args;
 315
 316         if (!*title) {
 317                 xo_open_container("extra_status");
 318                 xo_emit("\t\tExtra status:\n");
 319                 *title = true;
 320         }
 321         va_start(args, fmt);
 322         xo_emit_hv(NULL, fmt, args);
 323         va_end(args);
 324 }
 325
 326 static void
 327 print_extra_status(int eletype, u_char *cstat)
 328 {
 329         bool title = false;
 330
 331         if (cstat[0] & 0x40) {
 332                 sesutil_print(&title, "\t\t-{e:predicted_failure/true} Predicted Failure\n");
 333         }
 334         if (cstat[0] & 0x20) {
 335                 sesutil_print(&title, "\t\t-{e:disabled/true} Disabled\n");
 336         }
 337         if (cstat[0] & 0x10) {
 338                 sesutil_print(&title, "\t\t-{e:swapped/true} Swapped\n");
 339         }
 340         switch (eletype) {
 341         case ELMTYP_DEVICE:
 342         case ELMTYP_ARRAY_DEV:
 343                 if (cstat[2] & 0x02) {
 344                         sesutil_print(&title, "\t\t- LED={q:led/locate}\n");
 345                 }
 346                 if (cstat[2] & 0x20) {
 347                         sesutil_print(&title, "\t\t- LED={q:led/fault}\n");
 348                 }
 349                 break;
 350         case ELMTYP_FAN:
 351                 sesutil_print(&title, "\t\t- Speed: {:speed/%d}{Uw:rpm}\n",
 352                     (((0x7 & cstat[1]) << 8) + cstat[2]) * 10);
 353                 break;
 354         case ELMTYP_THERM:
 355                 if (cstat[2]) {
 356                         sesutil_print(&title, "\t\t- Temperature: {:temperature/%d}{Uw:C}\n",
 357                             cstat[2] - TEMPERATURE_OFFSET);
 358                 } else {
 359                         sesutil_print(&title, "\t\t- Temperature: -{q:temperature/reserved}-\n");
 360                 }
 361                 break;
 362         case ELMTYP_VOM:
 363                 sesutil_print(&title, "\t\t- Voltage: {:voltage/%.2f}{Uw:V}\n",
 364                     be16dec(cstat + 2) / 100.0);
 365                 break;
 366         }
 367         if (title) {
 368                 xo_close_container("extra_status");
 369         }
 370 }
 371
 372 static int
 373 objmap(int argc, char **argv __unused)
 374 {
 375         encioc_string_t stri;
 376         encioc_elm_devnames_t e_devname;
 377         encioc_elm_status_t e_status;
 378         encioc_elm_desc_t e_desc;
 379         encioc_element_t *e_ptr;
 380         glob_t g;
 381         int fd;
 382         unsigned int j, nobj;
 383         size_t i;
 384         char str[32];
 385
 386         if (argc != 1) {
 387                 usage(stderr, "map");
 388         }
 389
 390         /* Get the list of ses devices */
 391         if (glob(uflag, 0, NULL, &g) == GLOB_NOMATCH) {
 392                 globfree(&g);
 393                 xo_errx(EXIT_FAILURE, "No SES devices found");
 394         }
 395         xo_set_version(SESUTIL_XO_VERSION);
 396         xo_open_container("sesutil");
 397         xo_open_list("enclosures");
 398         for (i = 0; i < g.gl_pathc; i++) {
 399                 /* ensure we only got numbers after ses */
 400                 if (strspn(g.gl_pathv[i] + 8, "0123456789") !=
 401                     strlen(g.gl_pathv[i] + 8)) {
 402                         continue;
 403                 }
 404                 if ((fd = open(g.gl_pathv[i], O_RDWR)) < 0) {
 405                         /*
 406                          * Don't treat non-access errors as critical if we are
 407                          * accessing all devices
 408                          */
 409                         if (errno == EACCES && g.gl_pathc > 1) {
 410                                 xo_err(EXIT_FAILURE, "unable to access SES device");
 411                         }
 412                         xo_warn("unable to access SES device: %s", g.gl_pathv[i]);
 413                         continue;
 414                 }
 415
 416                 if (ioctl(fd, ENCIOC_GETNELM, (caddr_t) &nobj) < 0) {
 417                         close(fd);
 418                         xo_err(EXIT_FAILURE, "ENCIOC_GETNELM");
 419                 }
 420
 421                 e_ptr = calloc(nobj, sizeof(encioc_element_t));
 422                 if (e_ptr == NULL) {
 423                         close(fd);
 424                         xo_err(EXIT_FAILURE, "calloc()");
 425                 }
 426
 427                 if (ioctl(fd, ENCIOC_GETELMMAP, (caddr_t) e_ptr) < 0) {
 428                         close(fd);
 429                         xo_err(EXIT_FAILURE, "ENCIOC_GETELMMAP");
 430                 }
 431
 432                 xo_open_instance("enclosures");
 433                 xo_emit("{t:enc/%s}:\n", g.gl_pathv[i] + 5);
 434                 stri.bufsiz = sizeof(str);
 435                 stri.buf = &str[0];
 436                 if (ioctl(fd, ENCIOC_GETENCNAME, (caddr_t) &stri) == 0)
 437                         xo_emit("\tEnclosure Name: {t:name/%s}\n", stri.buf);
 438                 stri.bufsiz = sizeof(str);
 439                 stri.buf = &str[0];
 440                 if (ioctl(fd, ENCIOC_GETENCID, (caddr_t) &stri) == 0)
 441                         xo_emit("\tEnclosure ID: {t:id/%s}\n", stri.buf);
 442
 443                 xo_open_list("elements");
 444                 for (j = 0; j < nobj; j++) {
 445                         /* Get the status of the element */
 446                         memset(&e_status, 0, sizeof(e_status));
 447                         e_status.elm_idx = e_ptr[j].elm_idx;
 448                         if (ioctl(fd, ENCIOC_GETELMSTAT,
 449                             (caddr_t) &e_status) < 0) {
 450                                 close(fd);
 451                                 xo_err(EXIT_FAILURE, "ENCIOC_GETELMSTAT");
 452                         }
 453                         /* Get the description of the element */
 454                         memset(&e_desc, 0, sizeof(e_desc));
 455                         e_desc.elm_idx = e_ptr[j].elm_idx;
 456                         e_desc.elm_desc_len = UINT16_MAX;
 457                         e_desc.elm_desc_str = calloc(UINT16_MAX, sizeof(char));
 458                         if (e_desc.elm_desc_str == NULL) {
 459                                 close(fd);
 460                                 xo_err(EXIT_FAILURE, "calloc()");
 461                         }
 462                         if (ioctl(fd, ENCIOC_GETELMDESC,
 463                             (caddr_t) &e_desc) < 0) {
 464                                 close(fd);
 465                                 xo_err(EXIT_FAILURE, "ENCIOC_GETELMDESC");
 466                         }
 467                         /* Get the device name(s) of the element */
 468                         memset(&e_devname, 0, sizeof(e_devname));
 469                         e_devname.elm_idx = e_ptr[j].elm_idx;
 470                         e_devname.elm_names_size = 128;
 471                         e_devname.elm_devnames = calloc(128, sizeof(char));
 472                         if (e_devname.elm_devnames == NULL) {
 473                                 close(fd);
 474                                 xo_err(EXIT_FAILURE, "calloc()");
 475                         }
 476                         if (ioctl(fd, ENCIOC_GETELMDEVNAMES,
 477                             (caddr_t) &e_devname) <0) {
 478                                 /* We don't care if this fails */
 479                                 e_devname.elm_devnames[0] = '\0';
 480                         }
 481                         xo_open_instance("elements");
 482                         xo_emit("\tElement {:id/%u}, Type: {:type/%s}\n", e_ptr[j].elm_idx,
 483                             geteltnm(e_ptr[j].elm_type));
 484                         xo_emit("\t\tStatus: {:status/%s} ({q:status_code/0x%02x 0x%02x 0x%02x 0x%02x})\n",
 485                             scode2ascii(e_status.cstat[0]), e_status.cstat[0],
 486                             e_status.cstat[1], e_status.cstat[2],
 487                             e_status.cstat[3]);
 488                         if (e_desc.elm_desc_len > 0) {
 489                                 xo_emit("\t\tDescription: {:description/%s}\n",
 490                                     e_desc.elm_desc_str);
 491                         }
 492                         if (e_devname.elm_names_len > 0) {
 493                                 xo_emit("\t\tDevice Names: {:device_names/%s}\n",
 494                                     e_devname.elm_devnames);
 495                         }
 496                         print_extra_status(e_ptr[j].elm_type, e_status.cstat);
 497                         xo_close_instance("elements");
 498                         free(e_devname.elm_devnames);
 499                 }
 500                 xo_close_list("elements");
 501                 free(e_ptr);
 502                 close(fd);
 503         }
 504         globfree(&g);
 505         xo_close_list("enclosures");
 506         xo_close_container("sesutil");
 507         xo_finish();
 508
 509         return (EXIT_SUCCESS);
 510 }
 511
 512 static int
 513 encstatus(int argc, char **argv __unused)
 514 {
 515         glob_t g;
 516         int fd, status;
 517         size_t i, e;
 518         u_char estat;
 519
 520         status = 0;
 521         if (argc != 1) {
 522                 usage(stderr, "status");
 523         }
 524
 525         /* Get the list of ses devices */
 526         if (glob(uflag, 0, NULL, &g) == GLOB_NOMATCH) {
 527                 globfree(&g);
 528                 xo_errx(EXIT_FAILURE, "No SES devices found");
 529         }
 530
 531         xo_set_version(SESUTIL_XO_VERSION);
 532         xo_open_container("sesutil");
 533         xo_open_list("enclosures");
 534         for (i = 0; i < g.gl_pathc; i++) {
 535                 /* ensure we only got numbers after ses */
 536                 if (strspn(g.gl_pathv[i] + 8, "0123456789") !=
 537                     strlen(g.gl_pathv[i] + 8)) {
 538                         continue;
 539                 }
 540                 if ((fd = open(g.gl_pathv[i], O_RDWR)) < 0) {
 541                         /*
 542                          * Don't treat non-access errors as critical if we are
 543                          * accessing all devices
 544                          */
 545                         if (errno == EACCES && g.gl_pathc > 1) {
 546                                 xo_err(EXIT_FAILURE, "unable to access SES device");
 547                         }
 548                         xo_warn("unable to access SES device: %s", g.gl_pathv[i]);
 549                         continue;
 550                 }
 551
 552                 if (ioctl(fd, ENCIOC_GETENCSTAT, (caddr_t) &estat) < 0) {
 553                         xo_err(EXIT_FAILURE, "ENCIOC_GETENCSTAT");
 554                         close(fd);
 555                 }
 556
 557                 xo_open_instance("enclosures");
 558                 xo_emit("{:enc/%s}: ", g.gl_pathv[i] + 5);
 559                 e = 0;
 560                 if (estat == 0) {
 561                         if (status == 0) {
 562                                 status = 1;
 563                         }
 564                         xo_emit("{q:status/OK}");
 565                 } else {
 566                         if (estat & SES_ENCSTAT_INFO) {
 567                                 xo_emit("{lq:status/INFO}");
 568                                 e++;
 569                         }
 570                         if (estat & SES_ENCSTAT_NONCRITICAL) {
 571                                 if (e)
 572                                         xo_emit(",");
 573                                 xo_emit("{lq:status/NONCRITICAL}");
 574                                 e++;
 575                         }
 576                         if (estat & SES_ENCSTAT_CRITICAL) {
 577                                 if (e)
 578                                         xo_emit(",");
 579                                 xo_emit("{lq:status/CRITICAL}");
 580                                 e++;
 581                                 status = -1;
 582                         }
 583                         if (estat & SES_ENCSTAT_UNRECOV) {
 584                                 if (e)
 585                                         xo_emit(",");
 586                                 xo_emit("{lq:status/UNRECOV}");
 587                                 e++;
 588                                 status = -1;
 589                         }
 590                 }
 591                 xo_close_instance("enclosures");
 592                 xo_emit("\n");
 593                 close(fd);
 594         }
 595         globfree(&g);
 596
 597         xo_close_list("enclosures");
 598         xo_close_container("sesutil");
 599         xo_finish();
 600
 601         if (status == 1) {
 602                 return (EXIT_SUCCESS);
 603         } else {
 604                 return (EXIT_FAILURE);
 605         }
 606 }
 607
 608 int
 609 main(int argc, char **argv)
 610 {
 611         int i, ch;
 612         struct command *cmd = NULL;
 613
 614         argc = xo_parse_args(argc, argv);
 615         if (argc < 0)
 616                 exit(1);
 617
 618         uflag = "/dev/ses[0-9]*";
 619         while ((ch = getopt_long(argc, argv, "u:", NULL, NULL)) != -1) {
 620                 switch (ch) {
 621                 case 'u':
 622                         uflag = optarg;
 623                         break;
 624                 case '?':
 625                 default:
 626                         usage(stderr, NULL);
 627                 }
 628         }
 629         argc -= optind;
 630         argv += optind;
 631
 632         if (argc < 1) {
 633                 warnx("Missing command");
 634                 usage(stderr, NULL);
 635         }
 636
 637         for (i = 0; i < nbcmds; i++) {
 638                 if (strcmp(argv[0], cmds[i].name) == 0) {
 639                         cmd = &cmds[i];
 640                         break;
 641                 }
 642         }
 643
 644         if (cmd == NULL) {
 645                 warnx("unknown command %s", argv[0]);
 646                 usage(stderr, NULL);
 647         }
 648
 649         return (cmd->exec(argc, argv));
 650 }