cli.c

   1 /*
   2  * cli - Command Line Interface for the Unified Configuration Interface
   3  * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14 #include <strings.h>
  15 #include <string.h>
  16 #include <stdlib.h>
  17 #include <stdarg.h>
  18 #include <errno.h>
  19 #include <unistd.h>
  20 #include "uci.h"
  21
  22 #define MAX_ARGS        4 /* max command line arguments for batch mode */
  23
  24 static const char *delimiter = " ";
  25 static const char *appname;
  26 static enum {
  27         CLI_FLAG_MERGE =    (1 << 0),
  28         CLI_FLAG_QUIET =    (1 << 1),
  29         CLI_FLAG_NOCOMMIT = (1 << 2),
  30         CLI_FLAG_BATCH =    (1 << 3),
  31         CLI_FLAG_SHOW_EXT = (1 << 4),
  32 } flags;
  33
  34 static FILE *input;
  35
  36 static struct uci_context *ctx;
  37 enum {
  38         /* section cmds */
  39         CMD_GET,
  40         CMD_SET,
  41         CMD_ADD_LIST,
  42         CMD_DEL_LIST,
  43         CMD_DEL,
  44         CMD_RENAME,
  45         CMD_REVERT,
  46         CMD_REORDER,
  47         /* package cmds */
  48         CMD_SHOW,
  49         CMD_CHANGES,
  50         CMD_EXPORT,
  51         CMD_COMMIT,
  52         /* other cmds */
  53         CMD_ADD,
  54         CMD_IMPORT,
  55         CMD_HELP,
  56 };
  57
  58 struct uci_type_list {
  59         unsigned int idx;
  60         const char *name;
  61         struct uci_type_list *next;
  62 };
  63
  64 static struct uci_type_list *type_list = NULL;
  65 static char *typestr = NULL;
  66 static const char *cur_section_ref = NULL;
  67
  68 static int uci_cmd(int argc, char **argv);
  69
  70 static void
  71 uci_reset_typelist(void)
  72 {
  73         struct uci_type_list *type;
  74         while (type_list != NULL) {
  75                         type = type_list;
  76                         type_list = type_list->next;
  77                         free(type);
  78         }
  79         if (typestr) {
  80                 free(typestr);
  81                 typestr = NULL;
  82         }
  83         cur_section_ref = NULL;
  84 }
  85
  86 static char *
  87 uci_lookup_section_ref(struct uci_section *s)
  88 {
  89         struct uci_type_list *ti = type_list;
  90         char *ret;
  91         int maxlen;
  92
  93         if (!(flags & CLI_FLAG_SHOW_EXT))
  94                 return s->e.name;
  95
  96         /* look up in section type list */
  97         while (ti) {
  98                 if (strcmp(ti->name, s->type) == 0)
  99                         break;
 100                 ti = ti->next;
 101         }
 102         if (!ti) {
 103                 ti = malloc(sizeof(struct uci_type_list));
 104                 if (!ti)
 105                         return NULL;
 106                 memset(ti, 0, sizeof(struct uci_type_list));
 107                 ti->next = type_list;
 108                 type_list = ti;
 109                 ti->name = s->type;
 110         }
 111
 112         if (s->anonymous) {
 113                 maxlen = strlen(s->type) + 1 + 2 + 10;
 114                 if (!typestr) {
 115                         typestr = malloc(maxlen);
 116                         if (!typestr)
 117                                 return NULL;
 118                 } else {
 119                         void *p = realloc(typestr, maxlen);
 120                         if (!p) {
 121                                 free(typestr);
 122                                 return NULL;
 123                         }
 124
 125                         typestr = p;
 126                 }
 127
 128                 if (typestr)
 129                         sprintf(typestr, "@%s[%d]", ti->name, ti->idx);
 130
 131                 ret = typestr;
 132         } else {
 133                 ret = s->e.name;
 134         }
 135
 136         ti->idx++;
 137
 138         return ret;
 139 }
 140
 141 static void uci_usage(void)
 142 {
 143         fprintf(stderr,
 144                 "Usage: %s [<options>] <command> [<arguments>]\n\n"
 145                 "Commands:\n"
 146                 "\tbatch\n"
 147                 "\texport     [<config>]\n"
 148                 "\timport     [<config>]\n"
 149                 "\tchanges    [<config>]\n"
 150                 "\tcommit     [<config>]\n"
 151                 "\tadd        <config> <section-type>\n"
 152                 "\tadd_list   <config>.<section>.<option>=<string>\n"
 153                 "\tdel_list   <config>.<section>.<option>=<string>\n"
 154                 "\tshow       [<config>[.<section>[.<option>]]]\n"
 155                 "\tget        <config>.<section>[.<option>]\n"
 156                 "\tset        <config>.<section>[.<option>]=<value>\n"
 157                 "\tdelete     <config>[.<section>[[.<option>][=<id>]]]\n"
 158                 "\trename     <config>.<section>[.<option>]=<name>\n"
 159                 "\trevert     <config>[.<section>[.<option>]]\n"
 160                 "\treorder    <config>.<section>=<position>\n"
 161                 "\n"
 162                 "Options:\n"
 163                 "\t-c <path>  set the search path for config files (default: /etc/config)\n"
 164                 "\t-d <str>   set the delimiter for list values in uci show\n"
 165                 "\t-f <file>  use <file> as input instead of stdin\n"
 166                 "\t-m         when importing, merge data into an existing package\n"
 167                 "\t-n         name unnamed sections on export (default)\n"
 168                 "\t-N         don't name unnamed sections\n"
 169                 "\t-p <path>  add a search path for config change files\n"
 170                 "\t-P <path>  add a search path for config change files and use as default\n"
 171                 "\t-q         quiet mode (don't print error messages)\n"
 172                 "\t-s         force strict mode (stop on parser errors, default)\n"
 173                 "\t-S         disable strict mode\n"
 174                 "\t-X         do not use extended syntax on 'show'\n"
 175                 "\n",
 176                 appname
 177         );
 178 }
 179
 180 static void cli_perror(void)
 181 {
 182         if (flags & CLI_FLAG_QUIET)
 183                 return;
 184
 185         uci_perror(ctx, appname);
 186 }
 187
 188 static void cli_error(const char *fmt, ...)
 189 {
 190         va_list ap;
 191
 192         if (flags & CLI_FLAG_QUIET)
 193                 return;
 194
 195         va_start(ap, fmt);
 196         vfprintf(stderr, fmt, ap);
 197         va_end(ap);
 198 }
 199
 200 static void uci_print_value(FILE *f, const char *v)
 201 {
 202         fprintf(f, "'");
 203         while (*v) {
 204                 if (*v != '\'')
 205                         fputc(*v, f);
 206                 else
 207                         fprintf(f, "'\\''");
 208                 v++;
 209         }
 210         fprintf(f, "'");
 211 }
 212
 213 static void uci_show_value(struct uci_option *o, bool quote)
 214 {
 215         struct uci_element *e;
 216         bool sep = false;
 217         char *space;
 218
 219         switch(o->type) {
 220         case UCI_TYPE_STRING:
 221                 if (quote)
 222                         uci_print_value(stdout, o->v.string);
 223                 else
 224                         printf("%s", o->v.string);
 225                 printf("\n");
 226                 break;
 227         case UCI_TYPE_LIST:
 228                 uci_foreach_element(&o->v.list, e) {
 229                         printf("%s", (sep ? delimiter : ""));
 230                         space = strpbrk(e->name, " \t\r\n");
 231                         if (!space && !quote)
 232                                 printf("%s", e->name);
 233                         else
 234                                 uci_print_value(stdout, e->name);
 235                         sep = true;
 236                 }
 237                 printf("\n");
 238                 break;
 239         default:
 240                 printf("<unknown>\n");
 241                 break;
 242         }
 243 }
 244
 245 static void uci_show_option(struct uci_option *o, bool quote)
 246 {
 247         printf("%s.%s.%s=",
 248                 o->section->package->e.name,
 249                 (cur_section_ref ? cur_section_ref : o->section->e.name),
 250                 o->e.name);
 251         uci_show_value(o, quote);
 252 }
 253
 254 static void uci_show_section(struct uci_section *s)
 255 {
 256         struct uci_element *e;
 257         const char *cname;
 258         const char *sname;
 259
 260         cname = s->package->e.name;
 261         sname = (cur_section_ref ? cur_section_ref : s->e.name);
 262         printf("%s.%s=%s\n", cname, sname, s->type);
 263         uci_foreach_element(&s->options, e) {
 264                 uci_show_option(uci_to_option(e), true);
 265         }
 266 }
 267
 268 static void uci_show_package(struct uci_package *p)
 269 {
 270         struct uci_element *e;
 271
 272         uci_reset_typelist();
 273         uci_foreach_element( &p->sections, e) {
 274                 struct uci_section *s = uci_to_section(e);
 275                 cur_section_ref = uci_lookup_section_ref(s);
 276                 uci_show_section(s);
 277         }
 278         uci_reset_typelist();
 279 }
 280
 281 static void uci_show_changes(struct uci_package *p)
 282 {
 283         struct uci_element *e;
 284
 285         uci_foreach_element(&p->saved_delta, e) {
 286                 struct uci_delta *h = uci_to_delta(e);
 287                 char *prefix = "";
 288                 char *op = "=";
 289
 290                 switch(h->cmd) {
 291                 case UCI_CMD_REMOVE:
 292                         prefix = "-";
 293                         break;
 294                 case UCI_CMD_LIST_ADD:
 295                         op = "+=";
 296                         break;
 297                 case UCI_CMD_LIST_DEL:
 298                         op = "-=";
 299                         break;
 300                 default:
 301                         break;
 302                 }
 303                 printf("%s%s.%s", prefix, p->e.name, h->section);
 304                 if (e->name)
 305                         printf(".%s", e->name);
 306                 if (h->cmd != UCI_CMD_REMOVE) {
 307                         printf("%s", op);
 308                         uci_print_value(stdout, h->value);
 309                 }
 310                 printf("\n");
 311         }
 312 }
 313
 314 static int package_cmd(int cmd, char *tuple)
 315 {
 316         struct uci_element *e = NULL;
 317         struct uci_ptr ptr;
 318         int ret = 1;
 319
 320         if (uci_lookup_ptr(ctx, &ptr, tuple, true) != UCI_OK) {
 321                 cli_perror();
 322                 return 1;
 323         }
 324
 325         e = ptr.last;
 326         switch(cmd) {
 327         case CMD_CHANGES:
 328                 uci_show_changes(ptr.p);
 329                 break;
 330         case CMD_COMMIT:
 331                 if (flags & CLI_FLAG_NOCOMMIT) {
 332                         ret = 0;
 333                         goto out;
 334                 }
 335                 if (uci_commit(ctx, &ptr.p, false) != UCI_OK) {
 336                         cli_perror();
 337                         goto out;
 338                 }
 339                 break;
 340         case CMD_EXPORT:
 341                 if (uci_export(ctx, stdout, ptr.p, true) != UCI_OK) {
 342                         goto out;
 343                 }
 344                 break;
 345         case CMD_SHOW:
 346                 if (!(ptr.flags & UCI_LOOKUP_COMPLETE)) {
 347                         ctx->err = UCI_ERR_NOTFOUND;
 348                         cli_perror();
 349                         goto out;
 350                 }
 351                 switch(e->type) {
 352                         case UCI_TYPE_PACKAGE:
 353                                 uci_show_package(ptr.p);
 354                                 break;
 355                         case UCI_TYPE_SECTION:
 356                                 uci_show_section(ptr.s);
 357                                 break;
 358                         case UCI_TYPE_OPTION:
 359                                 uci_show_option(ptr.o, true);
 360                                 break;
 361                         default:
 362                                 /* should not happen */
 363                                 goto out;
 364                 }
 365                 break;
 366         }
 367
 368         ret = 0;
 369
 370 out:
 371         if (ptr.p)
 372                 uci_unload(ctx, ptr.p);
 373         return ret;
 374 }
 375
 376 static int uci_do_import(int argc, char **argv)
 377 {
 378         struct uci_package *package = NULL;
 379         char *name = NULL;
 380         int ret = UCI_OK;
 381         bool merge = false;
 382
 383         if (argc > 2)
 384                 return 255;
 385
 386         if (argc == 2)
 387                 name = argv[1];
 388         else if (flags & CLI_FLAG_MERGE)
 389                 /* need a package to merge */
 390                 return 255;
 391
 392         if (flags & CLI_FLAG_MERGE) {
 393                 if (uci_load(ctx, name, &package) != UCI_OK)
 394                         package = NULL;
 395                 else
 396                         merge = true;
 397         }
 398         ret = uci_import(ctx, input, name, &package, (name != NULL));
 399         if (ret == UCI_OK) {
 400                 if (merge) {
 401                         ret = uci_save(ctx, package);
 402                 } else {
 403                         struct uci_element *e;
 404                         /* loop through all config sections and overwrite existing data */
 405                         uci_foreach_element(&ctx->root, e) {
 406                                 struct uci_package *p = uci_to_package(e);
 407                                 ret = uci_commit(ctx, &p, true);
 408                         }
 409                 }
 410         }
 411
 412         if (ret != UCI_OK) {
 413                 cli_perror();
 414                 return 1;
 415         }
 416
 417         return 0;
 418 }
 419
 420 static int uci_do_package_cmd(int cmd, int argc, char **argv)
 421 {
 422         char **configs = NULL;
 423         char **p;
 424         int ret = 1;
 425
 426         if (argc > 2)
 427                 return 255;
 428
 429         if (argc == 2)
 430                 return package_cmd(cmd, argv[1]);
 431
 432         if ((uci_list_configs(ctx, &configs) != UCI_OK) || !configs) {
 433                 cli_perror();
 434                 goto out;
 435         }
 436
 437         for (p = configs; *p; p++) {
 438                 package_cmd(cmd, *p);
 439         }
 440
 441         ret = 0;
 442 out:
 443         free(configs);
 444         return ret;
 445 }
 446
 447 static int uci_do_add(int argc, char **argv)
 448 {
 449         struct uci_package *p = NULL;
 450         struct uci_section *s = NULL;
 451         int ret;
 452
 453         if (argc != 3)
 454                 return 255;
 455
 456         ret = uci_load(ctx, argv[1], &p);
 457         if (ret != UCI_OK)
 458                 goto done;
 459
 460         ret = uci_add_section(ctx, p, argv[2], &s);
 461         if (ret != UCI_OK)
 462                 goto done;
 463
 464         ret = uci_save(ctx, p);
 465
 466 done:
 467         if (ret != UCI_OK)
 468                 cli_perror();
 469         else if (s)
 470                 fprintf(stdout, "%s\n", s->e.name);
 471
 472         return ret;
 473 }
 474
 475 static int uci_do_section_cmd(int cmd, int argc, char **argv)
 476 {
 477         struct uci_element *e;
 478         struct uci_ptr ptr;
 479         int ret = UCI_OK;
 480         int dummy;
 481
 482         if (argc != 2)
 483                 return 255;
 484
 485         if (uci_lookup_ptr(ctx, &ptr, argv[1], true) != UCI_OK) {
 486                 cli_perror();
 487                 return 1;
 488         }
 489
 490         if (ptr.value && (cmd != CMD_SET) && (cmd != CMD_DEL) &&
 491             (cmd != CMD_ADD_LIST) && (cmd != CMD_DEL_LIST) &&
 492             (cmd != CMD_RENAME) && (cmd != CMD_REORDER))
 493                 return 1;
 494
 495         e = ptr.last;
 496         switch(cmd) {
 497         case CMD_GET:
 498                 if (!(ptr.flags & UCI_LOOKUP_COMPLETE)) {
 499                         ctx->err = UCI_ERR_NOTFOUND;
 500                         cli_perror();
 501                         return 1;
 502                 }
 503                 switch(e->type) {
 504                 case UCI_TYPE_SECTION:
 505                         printf("%s\n", ptr.s->type);
 506                         break;
 507                 case UCI_TYPE_OPTION:
 508                         uci_show_value(ptr.o, false);
 509                         break;
 510                 default:
 511                         break;
 512                 }
 513                 /* throw the value to stdout */
 514                 break;
 515         case CMD_RENAME:
 516                 ret = uci_rename(ctx, &ptr);
 517                 break;
 518         case CMD_REVERT:
 519                 ret = uci_revert(ctx, &ptr);
 520                 break;
 521         case CMD_SET:
 522                 ret = uci_set(ctx, &ptr);
 523                 break;
 524         case CMD_ADD_LIST:
 525                 ret = uci_add_list(ctx, &ptr);
 526                 break;
 527         case CMD_DEL_LIST:
 528                 ret = uci_del_list(ctx, &ptr);
 529                 break;
 530         case CMD_REORDER:
 531                 if (!ptr.s || !ptr.value) {
 532                         ctx->err = UCI_ERR_NOTFOUND;
 533                         cli_perror();
 534                         return 1;
 535                 }
 536                 ret = uci_reorder_section(ctx, ptr.s, strtoul(ptr.value, NULL, 10));
 537                 break;
 538         case CMD_DEL:
 539                 if (ptr.value && !sscanf(ptr.value, "%d", &dummy))
 540                         return 1;
 541                 ret = uci_delete(ctx, &ptr);
 542                 break;
 543         }
 544
 545         /* no save necessary for get */
 546         if ((cmd == CMD_GET) || (cmd == CMD_REVERT))
 547                 return 0;
 548
 549         /* save changes, but don't commit them yet */
 550         if (ret == UCI_OK)
 551                 ret = uci_save(ctx, ptr.p);
 552
 553         if (ret != UCI_OK) {
 554                 cli_perror();
 555                 return 1;
 556         }
 557
 558         return 0;
 559 }
 560
 561 static int uci_batch_cmd(void)
 562 {
 563         char *argv[MAX_ARGS + 2];
 564         char *str = NULL;
 565         int ret = 0;
 566         int i, j;
 567
 568         for(i = 0; i <= MAX_ARGS; i++) {
 569                 if (i == MAX_ARGS) {
 570                         cli_error("Too many arguments\n");
 571                         return 1;
 572                 }
 573                 argv[i] = NULL;
 574                 if (uci_parse_argument(ctx, input, &str, &argv[i]) != UCI_OK) {
 575                         cli_perror();
 576                         i = 0;
 577                         break;
 578                 }
 579                 if (!argv[i][0])
 580                         break;
 581                 argv[i] = strdup(argv[i]);
 582                 if (!argv[i]) {
 583                         cli_error("uci: %s", strerror(errno));
 584                         return 1;
 585                 }
 586         }
 587         argv[i] = NULL;
 588
 589         if (i > 0) {
 590                 if (!strcasecmp(argv[0], "exit"))
 591                         return 254;
 592                 ret = uci_cmd(i, argv);
 593         } else
 594                 return 0;
 595
 596         for (j = 0; j < i; j++) {
 597                 free(argv[j]);
 598         }
 599
 600         return ret;
 601 }
 602
 603 static int uci_batch(void)
 604 {
 605         int ret = 0;
 606
 607         flags |= CLI_FLAG_BATCH;
 608         while (!feof(input)) {
 609                 struct uci_element *e, *tmp;
 610
 611                 ret = uci_batch_cmd();
 612                 if (ret == 254)
 613                         return 0;
 614                 else if (ret == 255)
 615                         cli_error("Unknown command\n");
 616
 617                 /* clean up */
 618                 uci_foreach_element_safe(&ctx->root, tmp, e) {
 619                         uci_unload(ctx, uci_to_package(e));
 620                 }
 621         }
 622         flags &= ~CLI_FLAG_BATCH;
 623
 624         return 0;
 625 }
 626
 627 static int uci_cmd(int argc, char **argv)
 628 {
 629         int cmd = 0;
 630
 631         if (!strcasecmp(argv[0], "batch") && !(flags & CLI_FLAG_BATCH))
 632                 return uci_batch();
 633         else if (!strcasecmp(argv[0], "show"))
 634                 cmd = CMD_SHOW;
 635         else if (!strcasecmp(argv[0], "changes"))
 636                 cmd = CMD_CHANGES;
 637         else if (!strcasecmp(argv[0], "export"))
 638                 cmd = CMD_EXPORT;
 639         else if (!strcasecmp(argv[0], "commit"))
 640                 cmd = CMD_COMMIT;
 641         else if (!strcasecmp(argv[0], "get"))
 642                 cmd = CMD_GET;
 643         else if (!strcasecmp(argv[0], "set"))
 644                 cmd = CMD_SET;
 645         else if (!strcasecmp(argv[0], "ren") ||
 646                  !strcasecmp(argv[0], "rename"))
 647                 cmd = CMD_RENAME;
 648         else if (!strcasecmp(argv[0], "revert"))
 649                 cmd = CMD_REVERT;
 650         else if (!strcasecmp(argv[0], "reorder"))
 651                 cmd = CMD_REORDER;
 652         else if (!strcasecmp(argv[0], "del") ||
 653                  !strcasecmp(argv[0], "delete"))
 654                 cmd = CMD_DEL;
 655         else if (!strcasecmp(argv[0], "import"))
 656                 cmd = CMD_IMPORT;
 657         else if (!strcasecmp(argv[0], "help"))
 658                 cmd = CMD_HELP;
 659         else if (!strcasecmp(argv[0], "add"))
 660                 cmd = CMD_ADD;
 661         else if (!strcasecmp(argv[0], "add_list"))
 662                 cmd = CMD_ADD_LIST;
 663         else if (!strcasecmp(argv[0], "del_list"))
 664                 cmd = CMD_DEL_LIST;
 665         else
 666                 cmd = -1;
 667
 668         switch(cmd) {
 669                 case CMD_ADD_LIST:
 670                 case CMD_DEL_LIST:
 671                 case CMD_GET:
 672                 case CMD_SET:
 673                 case CMD_DEL:
 674                 case CMD_RENAME:
 675                 case CMD_REVERT:
 676                 case CMD_REORDER:
 677                         return uci_do_section_cmd(cmd, argc, argv);
 678                 case CMD_SHOW:
 679                 case CMD_EXPORT:
 680                 case CMD_COMMIT:
 681                 case CMD_CHANGES:
 682                         return uci_do_package_cmd(cmd, argc, argv);
 683                 case CMD_IMPORT:
 684                         return uci_do_import(argc, argv);
 685                 case CMD_ADD:
 686                         return uci_do_add(argc, argv);
 687                 case CMD_HELP:
 688                         uci_usage();
 689                         return 0;
 690                 default:
 691                         return 255;
 692         }
 693 }
 694
 695 int main(int argc, char **argv)
 696 {
 697         int ret;
 698         int c;
 699
 700         flags = CLI_FLAG_SHOW_EXT;
 701         appname = argv[0];
 702         input = stdin;
 703         ctx = uci_alloc_context();
 704         if (!ctx) {
 705                 cli_error("Out of memory\n");
 706                 return 1;
 707         }
 708
 709         while((c = getopt(argc, argv, "c:d:f:LmnNp:P:sSqX")) != -1) {
 710                 switch(c) {
 711                         case 'c':
 712                                 uci_set_confdir(ctx, optarg);
 713                                 break;
 714                         case 'd':
 715                                 delimiter = optarg;
 716                                 break;
 717                         case 'f':
 718                                 if (input != stdin) {
 719                                         fclose(input);
 720                                         cli_error("Too many input files.\n");
 721                                         return 1;
 722                                 }
 723
 724                                 input = fopen(optarg, "r");
 725                                 if (!input) {
 726                                         cli_error("uci: %s", strerror(errno));
 727                                         return 1;
 728                                 }
 729                                 break;
 730                         case 'm':
 731                                 flags |= CLI_FLAG_MERGE;
 732                                 break;
 733                         case 's':
 734                                 ctx->flags |= UCI_FLAG_STRICT;
 735                                 break;
 736                         case 'S':
 737                                 ctx->flags &= ~UCI_FLAG_STRICT;
 738                                 ctx->flags |= UCI_FLAG_PERROR;
 739                                 break;
 740                         case 'n':
 741                                 ctx->flags |= UCI_FLAG_EXPORT_NAME;
 742                                 break;
 743                         case 'N':
 744                                 ctx->flags &= ~UCI_FLAG_EXPORT_NAME;
 745                                 break;
 746                         case 'p':
 747                                 uci_add_delta_path(ctx, optarg);
 748                                 break;
 749                         case 'P':
 750                                 uci_add_delta_path(ctx, ctx->savedir);
 751                                 uci_set_savedir(ctx, optarg);
 752                                 flags |= CLI_FLAG_NOCOMMIT;
 753                                 break;
 754                         case 'q':
 755                                 flags |= CLI_FLAG_QUIET;
 756                                 break;
 757                         case 'X':
 758                                 flags &= ~CLI_FLAG_SHOW_EXT;
 759                                 break;
 760                         default:
 761                                 uci_usage();
 762                                 return 0;
 763                 }
 764         }
 765         if (optind > 1)
 766                 argv[optind - 1] = argv[0];
 767         argv += optind - 1;
 768         argc -= optind - 1;
 769
 770         if (argc < 2) {
 771                 uci_usage();
 772                 return 0;
 773         }
 774
 775         ret = uci_cmd(argc - 1, argv + 1);
 776         if (input != stdin)
 777                 fclose(input);
 778
 779         if (ret == 255)
 780                 uci_usage();
 781
 782         uci_free_context(ctx);
 783
 784         return ret;
 785 }