common/main.c

   1 /*
   2  * (C) Copyright 2000
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * Add to readline cmdline-editing by
   6  * (C) Copyright 2005
   7  * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com>
   8  *
   9  * See file CREDITS for list of people who contributed to this
  10  * project.
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License as
  14  * published by the Free Software Foundation; either version 2 of
  15  * the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  25  * MA 02111-1307 USA
  26  */
  27
  28 /* #define      DEBUG   */
  29
  30 #include <common.h>
  31 #include <watchdog.h>
  32 #include <command.h>
  33 #ifdef CONFIG_MODEM_SUPPORT
  34 #include <malloc.h>             /* for free() prototype */
  35 #endif
  36
  37 #ifdef CFG_HUSH_PARSER
  38 #include <hush.h>
  39 #endif
  40
  41 #include <post.h>
  42
  43 #if defined(CONFIG_SILENT_CONSOLE) || defined(CONFIG_POST)
  44 DECLARE_GLOBAL_DATA_PTR;
  45 #endif
  46
  47 /*
  48  * Board-specific Platform code can reimplement show_boot_progress () if needed
  49  */
  50 #ifndef CONFIG_MINI2440
  51 void inline __show_boot_progress (int val) {}
  52 void inline show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress")));
  53 #else
  54 void inline show_boot_progress (int val) {}
  55 #endif
  56
  57 #if defined(CONFIG_BOOT_RETRY_TIME) && defined(CONFIG_RESET_TO_RETRY)
  58 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);               /* for do_reset() prototype */
  59 #endif
  60
  61 extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  62
  63
  64 #define MAX_DELAY_STOP_STR 32
  65
  66 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
  67 static int abortboot(int);
  68 #endif
  69
  70 #undef DEBUG_PARSER
  71
  72 char        console_buffer[CFG_CBSIZE];         /* console I/O buffer   */
  73 int nobootdelay;
  74
  75 #ifndef CONFIG_CMDLINE_EDITING
  76 static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen);
  77 static char erase_seq[] = "\b \b";              /* erase sequence       */
  78 static char   tab_seq[] = "        ";           /* used to expand TABs  */
  79 #endif /* CONFIG_CMDLINE_EDITING */
  80
  81 #ifdef CONFIG_BOOT_RETRY_TIME
  82 static uint64_t endtime = 0;  /* must be set, default is instant timeout */
  83 static int      retry_time = -1; /* -1 so can call readline before main_loop */
  84 #endif
  85
  86 #define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk())
  87
  88 #ifndef CONFIG_BOOT_RETRY_MIN
  89 #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME
  90 #endif
  91
  92 #ifdef CONFIG_MODEM_SUPPORT
  93 int do_mdm_init = 0;
  94 extern void mdm_init(void); /* defined in board.c */
  95 #endif
  96
  97 #ifdef CFG_PREBOOT_OVERRIDE
  98 extern char *preboot_override;
  99 #endif
 100
 101
 102 /***************************************************************************
 103  * Watch for 'delay' seconds for autoboot stop or autoboot delay string.
 104  * returns: 0 -  no key string, allow autoboot
 105  *          1 - got key string, abort
 106  */
 107 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
 108 # if defined(CONFIG_AUTOBOOT_KEYED)
 109 static __inline__ int abortboot(int bootdelay)
 110 {
 111         int abort = 0;
 112         uint64_t etime = endtick(bootdelay);
 113         struct {
 114                 char* str;
 115                 u_int len;
 116                 int retry;
 117         }
 118         delaykey [] = {
 119                 { str: getenv ("bootdelaykey"),  retry: 1 },
 120                 { str: getenv ("bootdelaykey2"), retry: 1 },
 121                 { str: getenv ("bootstopkey"),   retry: 0 },
 122                 { str: getenv ("bootstopkey2"),  retry: 0 },
 123         };
 124
 125         char presskey [MAX_DELAY_STOP_STR];
 126         u_int presskey_len = 0;
 127         u_int presskey_max = 0;
 128         u_int i;
 129
 130 #  ifdef CONFIG_AUTOBOOT_PROMPT
 131         printf(CONFIG_AUTOBOOT_PROMPT, bootdelay);
 132 #  endif
 133
 134 #  ifdef CONFIG_AUTOBOOT_DELAY_STR
 135         if (delaykey[0].str == NULL)
 136                 delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR;
 137 #  endif
 138 #  ifdef CONFIG_AUTOBOOT_DELAY_STR2
 139         if (delaykey[1].str == NULL)
 140                 delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2;
 141 #  endif
 142 #  ifdef CONFIG_AUTOBOOT_STOP_STR
 143         if (delaykey[2].str == NULL)
 144                 delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR;
 145 #  endif
 146 #  ifdef CONFIG_AUTOBOOT_STOP_STR2
 147         if (delaykey[3].str == NULL)
 148                 delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2;
 149 #  endif
 150
 151         for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) {
 152                 delaykey[i].len = delaykey[i].str == NULL ?
 153                                     0 : strlen (delaykey[i].str);
 154                 delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ?
 155                                     MAX_DELAY_STOP_STR : delaykey[i].len;
 156
 157                 presskey_max = presskey_max > delaykey[i].len ?
 158                                     presskey_max : delaykey[i].len;
 159
 160 #  if DEBUG_BOOTKEYS
 161                 printf("%s key:<%s>\n",
 162                        delaykey[i].retry ? "delay" : "stop",
 163                        delaykey[i].str ? delaykey[i].str : "NULL");
 164 #  endif
 165         }
 166
 167         /* In order to keep up with incoming data, check timeout only
 168          * when catch up.
 169          */
 170         while (!abort && get_ticks() <= etime) {
 171                 for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) {
 172                         if (delaykey[i].len > 0 &&
 173                             presskey_len >= delaykey[i].len &&
 174                             memcmp (presskey + presskey_len - delaykey[i].len,
 175                                     delaykey[i].str,
 176                                     delaykey[i].len) == 0) {
 177 #  if DEBUG_BOOTKEYS
 178                                 printf("got %skey\n",
 179                                        delaykey[i].retry ? "delay" : "stop");
 180 #  endif
 181
 182 #  ifdef CONFIG_BOOT_RETRY_TIME
 183                                 /* don't retry auto boot */
 184                                 if (! delaykey[i].retry)
 185                                         retry_time = -1;
 186 #  endif
 187                                 abort = 1;
 188                         }
 189                 }
 190
 191                 if (tstc()) {
 192                         if (presskey_len < presskey_max) {
 193                                 presskey [presskey_len ++] = getc();
 194                         }
 195                         else {
 196                                 for (i = 0; i < presskey_max - 1; i ++)
 197                                         presskey [i] = presskey [i + 1];
 198
 199                                 presskey [i] = getc();
 200                         }
 201                 }
 202         }
 203 #  if DEBUG_BOOTKEYS
 204         if (!abort)
 205                 puts("key timeout\n");
 206 #  endif
 207
 208 #ifdef CONFIG_SILENT_CONSOLE
 209         if (abort)
 210                 gd->flags &= ~GD_FLG_SILENT;
 211 #endif
 212
 213         return abort;
 214 }
 215
 216 # else  /* !defined(CONFIG_AUTOBOOT_KEYED) */
 217
 218 #ifdef CONFIG_MENUKEY
 219 static int menukey = 0;
 220 #endif
 221
 222 static __inline__ int abortboot(int bootdelay)
 223 {
 224         int abort = 0;
 225
 226 #ifdef CONFIG_MENUPROMPT
 227         printf(CONFIG_MENUPROMPT, bootdelay);
 228 #else
 229         printf("Hit any key to stop autoboot: %2d ", bootdelay);
 230 #endif
 231
 232 #if defined CONFIG_ZERO_BOOTDELAY_CHECK
 233         /*
 234          * Check if key already pressed
 235          * Don't check if bootdelay < 0
 236          */
 237         if (bootdelay >= 0) {
 238                 if (tstc()) {   /* we got a key press   */
 239                         (void) getc();  /* consume input        */
 240                         puts ("\b\b\b 0");
 241                         abort = 1;      /* don't auto boot      */
 242                 }
 243         }
 244 #endif
 245
 246         while ((bootdelay > 0) && (!abort)) {
 247                 int i;
 248
 249                 --bootdelay;
 250                 /* delay 100 * 10ms */
 251                 for (i=0; !abort && i<100; ++i) {
 252                         if (tstc()) {   /* we got a key press   */
 253                                 abort  = 1;     /* don't auto boot      */
 254                                 bootdelay = 0;  /* no more delay        */
 255 # ifdef CONFIG_MENUKEY
 256                                 menukey = getc();
 257 # else
 258                                 (void) getc();  /* consume input        */
 259 # endif
 260                                 break;
 261                         }
 262                         udelay(10000);
 263                 }
 264
 265                 printf("\b\b\b%2d ", bootdelay);
 266         }
 267
 268         putc('\n');
 269
 270 #ifdef CONFIG_SILENT_CONSOLE
 271         if (abort)
 272                 gd->flags &= ~GD_FLG_SILENT;
 273 #endif
 274
 275         return abort;
 276 }
 277 # endif /* CONFIG_AUTOBOOT_KEYED */
 278 #endif  /* CONFIG_BOOTDELAY >= 0  */
 279
 280 /****************************************************************************/
 281
 282 void main_loop (void)
 283 {
 284 #ifndef CFG_HUSH_PARSER
 285         static char lastcommand[CFG_CBSIZE] = { 0, };
 286         int len;
 287         int rc = 1;
 288         int flag;
 289 #endif
 290
 291 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
 292         char *s;
 293         int bootdelay;
 294 #endif
 295 #if defined(CONFIG_PREBOOT) || defined(CFG_PREBOOT_OVERRIDE)
 296         char *p = NULL;
 297 #endif
 298 #ifdef CONFIG_BOOTCOUNT_LIMIT
 299         unsigned long bootcount = 0;
 300         unsigned long bootlimit = 0;
 301         char *bcs;
 302         char bcs_set[16];
 303 #endif /* CONFIG_BOOTCOUNT_LIMIT */
 304
 305 #if defined(CONFIG_VFD) && defined(VFD_TEST_LOGO)
 306         ulong bmp = 0;          /* default bitmap */
 307         extern int trab_vfd (ulong bitmap);
 308
 309 #ifdef CONFIG_MODEM_SUPPORT
 310         if (do_mdm_init)
 311                 bmp = 1;        /* alternate bitmap */
 312 #endif
 313         trab_vfd (bmp);
 314 #endif  /* CONFIG_VFD && VFD_TEST_LOGO */
 315
 316 #ifdef CONFIG_BOOTCOUNT_LIMIT
 317         bootcount = bootcount_load();
 318         bootcount++;
 319         bootcount_store (bootcount);
 320         sprintf (bcs_set, "%lu", bootcount);
 321         setenv ("bootcount", bcs_set);
 322         bcs = getenv ("bootlimit");
 323         bootlimit = bcs ? simple_strtoul (bcs, NULL, 10) : 0;
 324 #endif /* CONFIG_BOOTCOUNT_LIMIT */
 325
 326 #ifdef CONFIG_MODEM_SUPPORT
 327         debug ("DEBUG: main_loop:   do_mdm_init=%d\n", do_mdm_init);
 328         if (do_mdm_init) {
 329                 char *str = strdup(getenv("mdm_cmd"));
 330                 setenv ("preboot", str);  /* set or delete definition */
 331                 if (str != NULL)
 332                         free (str);
 333                 mdm_init(); /* wait for modem connection */
 334         }
 335 #endif  /* CONFIG_MODEM_SUPPORT */
 336
 337 #ifdef CONFIG_VERSION_VARIABLE
 338         {
 339                 extern char version_string[];
 340
 341                 setenv ("ver", version_string);  /* set version variable */
 342         }
 343 #endif /* CONFIG_VERSION_VARIABLE */
 344
 345 #ifdef CFG_HUSH_PARSER
 346         u_boot_hush_start ();
 347 #endif
 348
 349 #ifdef CONFIG_AUTO_COMPLETE
 350         install_auto_complete();
 351 #endif
 352
 353 #if defined(CONFIG_PREBOOT) || defined(CFG_PREBOOT_OVERRIDE)
 354 #ifdef CONFIG_PREBOOT
 355         p = getenv ("preboot");
 356 #endif
 357 #ifdef CFG_PREBOOT_OVERRIDE
 358         if (preboot_override) {
 359                 /* for convenience, preboot_override may end in \n, not \0 */
 360                 p = strchr(preboot_override, '\n');
 361                 if (p)
 362                         *p = 0;
 363                 /* make sure we can overwrite the load area if we want to */
 364                 p = strdup(preboot_override);
 365                 /* clean the image in case we want to flash it */
 366                 preboot_override = NULL;
 367         }
 368 #endif /* CFG_PREBOOT_OVERRIDE */
 369         if (p) {
 370 # ifdef CONFIG_AUTOBOOT_KEYED
 371                 int prev = disable_ctrlc(1);    /* disable Control C checking */
 372 # endif
 373
 374 # ifndef CFG_HUSH_PARSER
 375                 run_command (p, 0);
 376 # else
 377                 parse_string_outer(p, FLAG_PARSE_SEMICOLON |
 378                                     FLAG_EXIT_FROM_LOOP);
 379 # endif
 380
 381 # ifdef CONFIG_AUTOBOOT_KEYED
 382                 disable_ctrlc(prev);    /* restore Control C checking */
 383 # endif
 384         }
 385 #endif /* CONFIG_PREBOOT || CFG_PREBOOT_OVERRIDE */
 386
 387 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
 388         s = getenv ("bootdelay");
 389         bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
 390
 391         debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay);
 392
 393 # ifdef CONFIG_BOOT_RETRY_TIME
 394         init_cmd_timeout ();
 395 # endif /* CONFIG_BOOT_RETRY_TIME */
 396
 397 #ifdef CONFIG_POST
 398         if (gd->flags & GD_FLG_POSTFAIL) {
 399                 s = getenv("failbootcmd");
 400         }
 401         else
 402 #endif /* CONFIG_POST */
 403 #ifdef CONFIG_BOOTCOUNT_LIMIT
 404         if (bootlimit && (bootcount > bootlimit)) {
 405                 printf ("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n",
 406                         (unsigned)bootlimit);
 407                 s = getenv ("altbootcmd");
 408         }
 409         else
 410 #endif /* CONFIG_BOOTCOUNT_LIMIT */
 411                 s = getenv ("bootcmd");
 412
 413         debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
 414
 415         if (!nobootdelay && bootdelay >= 0 && s && !abortboot (bootdelay)) {
 416 # ifdef CONFIG_AUTOBOOT_KEYED
 417                 int prev = disable_ctrlc(1);    /* disable Control C checking */
 418 # endif
 419
 420 # ifndef CFG_HUSH_PARSER
 421                 run_command (s, 0);
 422 # else
 423                 parse_string_outer(s, FLAG_PARSE_SEMICOLON |
 424                                     FLAG_EXIT_FROM_LOOP);
 425 # endif
 426
 427 # ifdef CONFIG_AUTOBOOT_KEYED
 428                 disable_ctrlc(prev);    /* restore Control C checking */
 429 # endif
 430         }
 431
 432 # ifdef CONFIG_MENUKEY
 433         if (menukey == CONFIG_MENUKEY) {
 434             s = getenv("menucmd");
 435             if (s) {
 436 # ifndef CFG_HUSH_PARSER
 437                 run_command (s, 0);
 438 # else
 439                 parse_string_outer(s, FLAG_PARSE_SEMICOLON |
 440                                     FLAG_EXIT_FROM_LOOP);
 441 # endif
 442             }
 443         }
 444 #endif /* CONFIG_MENUKEY */
 445 #endif  /* CONFIG_BOOTDELAY */
 446
 447 #ifdef CONFIG_AMIGAONEG3SE
 448         {
 449             extern void video_banner(void);
 450             video_banner();
 451         }
 452 #endif
 453
 454         /*
 455          * Main Loop for Monitor Command Processing
 456          */
 457 #ifdef CFG_HUSH_PARSER
 458         parse_file_outer();
 459         /* This point is never reached */
 460         for (;;);
 461 #else
 462         for (;;) {
 463 #ifdef CONFIG_BOOT_RETRY_TIME
 464                 if (rc >= 0) {
 465                         /* Saw enough of a valid command to
 466                          * restart the timeout.
 467                          */
 468                         reset_cmd_timeout();
 469                 }
 470 #endif
 471                 len = readline (CFG_PROMPT);
 472
 473                 flag = 0;       /* assume no special flags for now */
 474                 if (len > 0)
 475                         strcpy (lastcommand, console_buffer);
 476                 else if (len == 0)
 477                         flag |= CMD_FLAG_REPEAT;
 478 #ifdef CONFIG_BOOT_RETRY_TIME
 479                 else if (len == -2) {
 480                         /* -2 means timed out, retry autoboot
 481                          */
 482                         puts ("\nTimed out waiting for command\n");
 483 # ifdef CONFIG_RESET_TO_RETRY
 484                         /* Reinit board to run initialization code again */
 485                         do_reset (NULL, 0, 0, NULL);
 486 # else
 487                         return;         /* retry autoboot */
 488 # endif
 489                 }
 490 #endif
 491
 492                 if (len == -1)
 493                         puts ("<INTERRUPT>\n");
 494                 else
 495                         rc = run_command (lastcommand, flag);
 496
 497                 if (rc <= 0) {
 498                         /* invalid command or not repeatable, forget it */
 499                         lastcommand[0] = 0;
 500                 }
 501         }
 502 #endif /*CFG_HUSH_PARSER*/
 503 }
 504
 505 #ifdef CONFIG_BOOT_RETRY_TIME
 506 /***************************************************************************
 507  * initialize command line timeout
 508  */
 509 void init_cmd_timeout(void)
 510 {
 511         char *s = getenv ("bootretry");
 512
 513         if (s != NULL)
 514                 retry_time = (int)simple_strtol(s, NULL, 10);
 515         else
 516                 retry_time =  CONFIG_BOOT_RETRY_TIME;
 517
 518         if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN)
 519                 retry_time = CONFIG_BOOT_RETRY_MIN;
 520 }
 521
 522 /***************************************************************************
 523  * reset command line timeout to retry_time seconds
 524  */
 525 void reset_cmd_timeout(void)
 526 {
 527         endtime = endtick(retry_time);
 528 }
 529 #endif
 530
 531 #ifdef CONFIG_CMDLINE_EDITING
 532
 533 /*
 534  * cmdline-editing related codes from vivi.
 535  * Author: Janghoon Lyu <nandy@mizi.com>
 536  */
 537
 538 #define putnstr(str,n)  do {                    \
 539                 printf ("%.*s", n, str);        \
 540         } while (0)
 541
 542 #define CTL_CH(c)               ((c) - 'a' + 1)
 543
 544 #define MAX_CMDBUF_SIZE         256
 545
 546 #define CTL_BACKSPACE           ('\b')
 547 #define DEL                     ((char)255)
 548 #define DEL7                    ((char)127)
 549 #define CREAD_HIST_CHAR         ('!')
 550
 551 #define getcmd_putch(ch)        putc(ch)
 552 #define getcmd_getch()          getc()
 553 #define getcmd_cbeep()          getcmd_putch('\a')
 554
 555 #define HIST_MAX                20
 556 #define HIST_SIZE               MAX_CMDBUF_SIZE
 557
 558 static int hist_max = 0;
 559 static int hist_add_idx = 0;
 560 static int hist_cur = -1;
 561 unsigned hist_num = 0;
 562
 563 char* hist_list[HIST_MAX];
 564 char hist_lines[HIST_MAX][HIST_SIZE];
 565
 566 #define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1)
 567
 568 static void hist_init(void)
 569 {
 570         int i;
 571
 572         hist_max = 0;
 573         hist_add_idx = 0;
 574         hist_cur = -1;
 575         hist_num = 0;
 576
 577         for (i = 0; i < HIST_MAX; i++) {
 578                 hist_list[i] = hist_lines[i];
 579                 hist_list[i][0] = '\0';
 580         }
 581 }
 582
 583 static void cread_add_to_hist(char *line)
 584 {
 585         strcpy(hist_list[hist_add_idx], line);
 586
 587         if (++hist_add_idx >= HIST_MAX)
 588                 hist_add_idx = 0;
 589
 590         if (hist_add_idx > hist_max)
 591                 hist_max = hist_add_idx;
 592
 593         hist_num++;
 594 }
 595
 596 static char* hist_prev(void)
 597 {
 598         char *ret;
 599         int old_cur;
 600
 601         if (hist_cur < 0)
 602                 return NULL;
 603
 604         old_cur = hist_cur;
 605         if (--hist_cur < 0)
 606                 hist_cur = hist_max;
 607
 608         if (hist_cur == hist_add_idx) {
 609                 hist_cur = old_cur;
 610                 ret = NULL;
 611         } else
 612                 ret = hist_list[hist_cur];
 613
 614         return (ret);
 615 }
 616
 617 static char* hist_next(void)
 618 {
 619         char *ret;
 620
 621         if (hist_cur < 0)
 622                 return NULL;
 623
 624         if (hist_cur == hist_add_idx)
 625                 return NULL;
 626
 627         if (++hist_cur > hist_max)
 628                 hist_cur = 0;
 629
 630         if (hist_cur == hist_add_idx) {
 631                 ret = "";
 632         } else
 633                 ret = hist_list[hist_cur];
 634
 635         return (ret);
 636 }
 637
 638 #ifndef CONFIG_CMDLINE_EDITING
 639 static void cread_print_hist_list(void)
 640 {
 641         int i;
 642         unsigned long n;
 643
 644         n = hist_num - hist_max;
 645
 646         i = hist_add_idx + 1;
 647         while (1) {
 648                 if (i > hist_max)
 649                         i = 0;
 650                 if (i == hist_add_idx)
 651                         break;
 652                 printf("%s\n", hist_list[i]);
 653                 n++;
 654                 i++;
 655         }
 656 }
 657 #endif /* CONFIG_CMDLINE_EDITING */
 658
 659 #define BEGINNING_OF_LINE() {                   \
 660         while (num) {                           \
 661                 getcmd_putch(CTL_BACKSPACE);    \
 662                 num--;                          \
 663         }                                       \
 664 }
 665
 666 #define ERASE_TO_EOL() {                                \
 667         if (num < eol_num) {                            \
 668                 int tmp;                                \
 669                 for (tmp = num; tmp < eol_num; tmp++)   \
 670                         getcmd_putch(' ');              \
 671                 while (tmp-- > num)                     \
 672                         getcmd_putch(CTL_BACKSPACE);    \
 673                 eol_num = num;                          \
 674         }                                               \
 675 }
 676
 677 #define REFRESH_TO_EOL() {                      \
 678         if (num < eol_num) {                    \
 679                 wlen = eol_num - num;           \
 680                 putnstr(buf + num, wlen);       \
 681                 num = eol_num;                  \
 682         }                                       \
 683 }
 684
 685 static void cread_add_char(char ichar, int insert, unsigned long *num,
 686                unsigned long *eol_num, char *buf, unsigned long len)
 687 {
 688         unsigned long wlen;
 689
 690         /* room ??? */
 691         if (insert || *num == *eol_num) {
 692                 if (*eol_num > len - 1) {
 693                         getcmd_cbeep();
 694                         return;
 695                 }
 696                 (*eol_num)++;
 697         }
 698
 699         if (insert) {
 700                 wlen = *eol_num - *num;
 701                 if (wlen > 1) {
 702                         memmove(&buf[*num+1], &buf[*num], wlen-1);
 703                 }
 704
 705                 buf[*num] = ichar;
 706                 putnstr(buf + *num, wlen);
 707                 (*num)++;
 708                 while (--wlen) {
 709                         getcmd_putch(CTL_BACKSPACE);
 710                 }
 711         } else {
 712                 /* echo the character */
 713                 wlen = 1;
 714                 buf[*num] = ichar;
 715                 putnstr(buf + *num, wlen);
 716                 (*num)++;
 717         }
 718 }
 719
 720 static void cread_add_str(char *str, int strsize, int insert, unsigned long *num,
 721               unsigned long *eol_num, char *buf, unsigned long len)
 722 {
 723         while (strsize--) {
 724                 cread_add_char(*str, insert, num, eol_num, buf, len);
 725                 str++;
 726         }
 727 }
 728
 729 static int cread_line(const char *const prompt, char *buf, unsigned int *len)
 730 {
 731         unsigned long num = 0;
 732         unsigned long eol_num = 0;
 733         unsigned long rlen;
 734         unsigned long wlen;
 735         char ichar;
 736         int insert = 1;
 737         int esc_len = 0;
 738         int rc = 0;
 739         char esc_save[8];
 740
 741         while (1) {
 742                 rlen = 1;
 743 #ifdef CONFIG_BOOT_RETRY_TIME
 744                 while (!tstc()) {       /* while no incoming data */
 745                         if (retry_time >= 0 && get_ticks() > endtime)
 746                                 return (-2);    /* timed out */
 747                 }
 748 #endif
 749
 750                 ichar = getcmd_getch();
 751
 752                 if ((ichar == '\n') || (ichar == '\r')) {
 753                         putc('\n');
 754                         break;
 755                 }
 756
 757                 /*
 758                  * handle standard linux xterm esc sequences for arrow key, etc.
 759                  */
 760                 if (esc_len != 0) {
 761                         if (esc_len == 1) {
 762                                 if (ichar == '[') {
 763                                         esc_save[esc_len] = ichar;
 764                                         esc_len = 2;
 765                                 } else {
 766                                         cread_add_str(esc_save, esc_len, insert,
 767                                                       &num, &eol_num, buf, *len);
 768                                         esc_len = 0;
 769                                 }
 770                                 continue;
 771                         }
 772
 773                         switch (ichar) {
 774
 775                         case 'D':       /* <- key */
 776                                 ichar = CTL_CH('b');
 777                                 esc_len = 0;
 778                                 break;
 779                         case 'C':       /* -> key */
 780                                 ichar = CTL_CH('f');
 781                                 esc_len = 0;
 782                                 break;  /* pass off to ^F handler */
 783                         case 'H':       /* Home key */
 784                                 ichar = CTL_CH('a');
 785                                 esc_len = 0;
 786                                 break;  /* pass off to ^A handler */
 787                         case 'A':       /* up arrow */
 788                                 ichar = CTL_CH('p');
 789                                 esc_len = 0;
 790                                 break;  /* pass off to ^P handler */
 791                         case 'B':       /* down arrow */
 792                                 ichar = CTL_CH('n');
 793                                 esc_len = 0;
 794                                 break;  /* pass off to ^N handler */
 795                         default:
 796                                 esc_save[esc_len++] = ichar;
 797                                 cread_add_str(esc_save, esc_len, insert,
 798                                               &num, &eol_num, buf, *len);
 799                                 esc_len = 0;
 800                                 continue;
 801                         }
 802                 }
 803
 804                 switch (ichar) {
 805                 case 0x1b:
 806                         if (esc_len == 0) {
 807                                 esc_save[esc_len] = ichar;
 808                                 esc_len = 1;
 809                         } else {
 810                                 puts("impossible condition #876\n");
 811                                 esc_len = 0;
 812                         }
 813                         break;
 814
 815                 case CTL_CH('a'):
 816                         BEGINNING_OF_LINE();
 817                         break;
 818                 case CTL_CH('c'):       /* ^C - break */
 819                         *buf = '\0';    /* discard input */
 820                         return (-1);
 821                 case CTL_CH('f'):
 822                         if (num < eol_num) {
 823                                 getcmd_putch(buf[num]);
 824                                 num++;
 825                         }
 826                         break;
 827                 case CTL_CH('b'):
 828                         if (num) {
 829                                 getcmd_putch(CTL_BACKSPACE);
 830                                 num--;
 831                         }
 832                         break;
 833                 case CTL_CH('d'):
 834                         if (num < eol_num) {
 835                                 wlen = eol_num - num - 1;
 836                                 if (wlen) {
 837                                         memmove(&buf[num], &buf[num+1], wlen);
 838                                         putnstr(buf + num, wlen);
 839                                 }
 840
 841                                 getcmd_putch(' ');
 842                                 do {
 843                                         getcmd_putch(CTL_BACKSPACE);
 844                                 } while (wlen--);
 845                                 eol_num--;
 846                         }
 847                         break;
 848                 case CTL_CH('k'):
 849                         ERASE_TO_EOL();
 850                         break;
 851                 case CTL_CH('e'):
 852                         REFRESH_TO_EOL();
 853                         break;
 854                 case CTL_CH('o'):
 855                         insert = !insert;
 856                         break;
 857                 case CTL_CH('x'):
 858                 case CTL_CH('u'):
 859                         BEGINNING_OF_LINE();
 860                         ERASE_TO_EOL();
 861                         break;
 862                 case DEL:
 863                 case DEL7:
 864                 case 8:
 865                         if (num) {
 866                                 wlen = eol_num - num;
 867                                 num--;
 868                                 memmove(&buf[num], &buf[num+1], wlen);
 869                                 getcmd_putch(CTL_BACKSPACE);
 870                                 putnstr(buf + num, wlen);
 871                                 getcmd_putch(' ');
 872                                 do {
 873                                         getcmd_putch(CTL_BACKSPACE);
 874                                 } while (wlen--);
 875                                 eol_num--;
 876                         }
 877                         break;
 878                 case CTL_CH('p'):
 879                 case CTL_CH('n'):
 880                 {
 881                         char * hline;
 882
 883                         esc_len = 0;
 884
 885                         if (ichar == CTL_CH('p'))
 886                                 hline = hist_prev();
 887                         else
 888                                 hline = hist_next();
 889
 890                         if (!hline) {
 891                                 getcmd_cbeep();
 892                                 continue;
 893                         }
 894
 895                         /* nuke the current line */
 896                         /* first, go home */
 897                         BEGINNING_OF_LINE();
 898
 899                         /* erase to end of line */
 900                         ERASE_TO_EOL();
 901
 902                         /* copy new line into place and display */
 903                         strcpy(buf, hline);
 904                         eol_num = strlen(buf);
 905                         REFRESH_TO_EOL();
 906                         continue;
 907                 }
 908 #ifdef CONFIG_AUTO_COMPLETE
 909                 case '\t': {
 910                         int num2, col;
 911
 912                         /* do not autocomplete when in the middle */
 913                         if (num < eol_num) {
 914                                 getcmd_cbeep();
 915                                 break;
 916                         }
 917
 918                         buf[num] = '\0';
 919                         col = strlen(prompt) + eol_num;
 920                         num2 = num;
 921                         if (cmd_auto_complete(prompt, buf, &num2, &col)) {
 922                                 col = num2 - num;
 923                                 num += col;
 924                                 eol_num += col;
 925                         }
 926                         break;
 927                 }
 928 #endif
 929                 default:
 930                         cread_add_char(ichar, insert, &num, &eol_num, buf, *len);
 931                         break;
 932                 }
 933         }
 934         *len = eol_num;
 935         buf[eol_num] = '\0';    /* lose the newline */
 936
 937         if (buf[0] && buf[0] != CREAD_HIST_CHAR)
 938                 cread_add_to_hist(buf);
 939         hist_cur = hist_add_idx;
 940
 941         return (rc);
 942 }
 943
 944 #endif /* CONFIG_CMDLINE_EDITING */
 945
 946 /****************************************************************************/
 947
 948 /*
 949  * Prompt for input and read a line.
 950  * If  CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0,
 951  * time out when time goes past endtime (timebase time in ticks).
 952  * Return:      number of read characters
 953  *              -1 if break
 954  *              -2 if timed out
 955  */
 956 int readline (const char *const prompt)
 957 {
 958         return readline_into_buffer(prompt, console_buffer);
 959 }
 960
 961
 962 int readline_into_buffer (const char *const prompt, char * buffer)
 963 {
 964         char *p = buffer;
 965 #ifdef CONFIG_CMDLINE_EDITING
 966         unsigned int len=MAX_CMDBUF_SIZE;
 967         int rc;
 968         static int initted = 0;
 969
 970         if (!initted) {
 971                 hist_init();
 972                 initted = 1;
 973         }
 974
 975         puts (prompt);
 976
 977         rc = cread_line(prompt, p, &len);
 978         return rc < 0 ? rc : len;
 979 #else
 980         char * p_buf = p;
 981         int     n = 0;                          /* buffer index         */
 982         int     plen = 0;                       /* prompt length        */
 983         int     col;                            /* output column cnt    */
 984         char    c;
 985
 986         /* print prompt */
 987         if (prompt) {
 988                 plen = strlen (prompt);
 989                 puts (prompt);
 990         }
 991         col = plen;
 992
 993         for (;;) {
 994 #ifdef CONFIG_BOOT_RETRY_TIME
 995                 while (!tstc()) {       /* while no incoming data */
 996                         if (retry_time >= 0 && get_ticks() > endtime)
 997                                 return (-2);    /* timed out */
 998                 }
 999 #endif
1000                 WATCHDOG_RESET();               /* Trigger watchdog, if needed */
1001
1002 #ifdef CONFIG_SHOW_ACTIVITY
1003                 while (!tstc()) {
1004                         extern void show_activity(int arg);
1005                         show_activity(0);
1006                 }
1007 #endif
1008                 c = getc();
1009
1010                 /*
1011                  * Special character handling
1012                  */
1013                 switch (c) {
1014                 case '\r':                              /* Enter                */
1015                 case '\n':
1016                         *p = '\0';
1017                         puts ("\r\n");
1018                         return (p - p_buf);
1019
1020                 case '\0':                              /* nul                  */
1021                         continue;
1022
1023                 case 0x03:                              /* ^C - break           */
1024                         p_buf[0] = '\0';        /* discard input */
1025                         return (-1);
1026
1027                 case 0x15:                              /* ^U - erase line      */
1028                         while (col > plen) {
1029                                 puts (erase_seq);
1030                                 --col;
1031                         }
1032                         p = p_buf;
1033                         n = 0;
1034                         continue;
1035
1036                 case 0x17:                              /* ^W - erase word      */
1037                         p=delete_char(p_buf, p, &col, &n, plen);
1038                         while ((n > 0) && (*p != ' ')) {
1039                                 p=delete_char(p_buf, p, &col, &n, plen);
1040                         }
1041                         continue;
1042
1043                 case 0x08:                              /* ^H  - backspace      */
1044                 case 0x7F:                              /* DEL - backspace      */
1045                         p=delete_char(p_buf, p, &col, &n, plen);
1046                         continue;
1047
1048                 default:
1049                         /*
1050                          * Must be a normal character then
1051                          */
1052                         if (n < CFG_CBSIZE-2) {
1053                                 if (c == '\t') {        /* expand TABs          */
1054 #ifdef CONFIG_AUTO_COMPLETE
1055                                         /* if auto completion triggered just continue */
1056                                         *p = '\0';
1057                                         if (cmd_auto_complete(prompt, console_buffer, &n, &col)) {
1058                                                 p = p_buf + n;  /* reset */
1059                                                 continue;
1060                                         }
1061 #endif
1062                                         puts (tab_seq+(col&07));
1063                                         col += 8 - (col&07);
1064                                 } else {
1065                                         ++col;          /* echo input           */
1066                                         putc (c);
1067                                 }
1068                                 *p++ = c;
1069                                 ++n;
1070                         } else {                        /* Buffer full          */
1071                                 putc ('\a');
1072                         }
1073                 }
1074         }
1075 #endif /* CONFIG_CMDLINE_EDITING */
1076 }
1077
1078 /****************************************************************************/
1079
1080 #ifndef CONFIG_CMDLINE_EDITING
1081 static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen)
1082 {
1083         char *s;
1084
1085         if (*np == 0) {
1086                 return (p);
1087         }
1088
1089         if (*(--p) == '\t') {                   /* will retype the whole line   */
1090                 while (*colp > plen) {
1091                         puts (erase_seq);
1092                         (*colp)--;
1093                 }
1094                 for (s=buffer; s<p; ++s) {
1095                         if (*s == '\t') {
1096                                 puts (tab_seq+((*colp) & 07));
1097                                 *colp += 8 - ((*colp) & 07);
1098                         } else {
1099                                 ++(*colp);
1100                                 putc (*s);
1101                         }
1102                 }
1103         } else {
1104                 puts (erase_seq);
1105                 (*colp)--;
1106         }
1107         (*np)--;
1108         return (p);
1109 }
1110 #endif /* CONFIG_CMDLINE_EDITING */
1111
1112 /****************************************************************************/
1113
1114 int parse_line (char *line, char *argv[])
1115 {
1116         int nargs = 0;
1117
1118 #ifdef DEBUG_PARSER
1119         printf ("parse_line: \"%s\"\n", line);
1120 #endif
1121         while (nargs < CFG_MAXARGS) {
1122
1123                 /* skip any white space */
1124                 while ((*line == ' ') || (*line == '\t')) {
1125                         ++line;
1126                 }
1127
1128                 if (*line == '\0') {    /* end of line, no more args    */
1129                         argv[nargs] = NULL;
1130 #ifdef DEBUG_PARSER
1131                 printf ("parse_line: nargs=%d\n", nargs);
1132 #endif
1133                         return (nargs);
1134                 }
1135
1136                 argv[nargs++] = line;   /* begin of argument string     */
1137
1138                 /* find end of string */
1139                 while (*line && (*line != ' ') && (*line != '\t')) {
1140                         ++line;
1141                 }
1142
1143                 if (*line == '\0') {    /* end of line, no more args    */
1144                         argv[nargs] = NULL;
1145 #ifdef DEBUG_PARSER
1146                 printf ("parse_line: nargs=%d\n", nargs);
1147 #endif
1148                         return (nargs);
1149                 }
1150
1151                 *line++ = '\0';         /* terminate current arg         */
1152         }
1153
1154         printf ("** Too many args (max. %d) **\n", CFG_MAXARGS);
1155
1156 #ifdef DEBUG_PARSER
1157         printf ("parse_line: nargs=%d\n", nargs);
1158 #endif
1159         return (nargs);
1160 }
1161
1162 /****************************************************************************/
1163
1164 static void process_macros (const char *input, char *output)
1165 {
1166         char c, prev;
1167         const char *varname_start = NULL;
1168         int inputcnt = strlen (input);
1169         int outputcnt = CFG_CBSIZE;
1170         int state = 0;          /* 0 = waiting for '$'  */
1171
1172         /* 1 = waiting for '(' or '{' */
1173         /* 2 = waiting for ')' or '}' */
1174         /* 3 = waiting for '''  */
1175 #ifdef DEBUG_PARSER
1176         char *output_start = output;
1177
1178         printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input),
1179                 input);
1180 #endif
1181
1182         prev = '\0';            /* previous character   */
1183
1184         while (inputcnt && outputcnt) {
1185                 c = *input++;
1186                 inputcnt--;
1187
1188                 if (state != 3) {
1189                         /* remove one level of escape characters */
1190                         if ((c == '\\') && (prev != '\\')) {
1191                                 if (inputcnt-- == 0)
1192                                         break;
1193                                 prev = c;
1194                                 c = *input++;
1195                         }
1196                 }
1197
1198                 switch (state) {
1199                 case 0: /* Waiting for (unescaped) $    */
1200                         if ((c == '\'') && (prev != '\\')) {
1201                                 state = 3;
1202                                 break;
1203                         }
1204                         if ((c == '$') && (prev != '\\')) {
1205                                 state++;
1206                         } else {
1207                                 *(output++) = c;
1208                                 outputcnt--;
1209                         }
1210                         break;
1211                 case 1: /* Waiting for (        */
1212                         if (c == '(' || c == '{') {
1213                                 state++;
1214                                 varname_start = input;
1215                         } else {
1216                                 state = 0;
1217                                 *(output++) = '$';
1218                                 outputcnt--;
1219
1220                                 if (outputcnt) {
1221                                         *(output++) = c;
1222                                         outputcnt--;
1223                                 }
1224                         }
1225                         break;
1226                 case 2: /* Waiting for )        */
1227                         if (c == ')' || c == '}') {
1228                                 int i;
1229                                 char envname[CFG_CBSIZE], *envval;
1230                                 int envcnt = input - varname_start - 1; /* Varname # of chars */
1231
1232                                 /* Get the varname */
1233                                 for (i = 0; i < envcnt; i++) {
1234                                         envname[i] = varname_start[i];
1235                                 }
1236                                 envname[i] = 0;
1237
1238                                 /* Get its value */
1239                                 envval = getenv (envname);
1240
1241                                 /* Copy into the line if it exists */
1242                                 if (envval != NULL)
1243                                         while ((*envval) && outputcnt) {
1244                                                 *(output++) = *(envval++);
1245                                                 outputcnt--;
1246                                         }
1247                                 /* Look for another '$' */
1248                                 state = 0;
1249                         }
1250                         break;
1251                 case 3: /* Waiting for '        */
1252                         if ((c == '\'') && (prev != '\\')) {
1253                                 state = 0;
1254                         } else {
1255                                 *(output++) = c;
1256                                 outputcnt--;
1257                         }
1258                         break;
1259                 }
1260                 prev = c;
1261         }
1262
1263         if (outputcnt)
1264                 *output = 0;
1265         else
1266                 *(output - 1) = 0;
1267
1268 #ifdef DEBUG_PARSER
1269         printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",
1270                 strlen (output_start), output_start);
1271 #endif
1272 }
1273
1274 /****************************************************************************
1275  * returns:
1276  *      1  - command executed, repeatable
1277  *      0  - command executed but not repeatable, interrupted commands are
1278  *           always considered not repeatable
1279  *      -1 - not executed (unrecognized, bootd recursion or too many args)
1280  *           (If cmd is NULL or "" or longer than CFG_CBSIZE-1 it is
1281  *           considered unrecognized)
1282  *
1283  * WARNING:
1284  *
1285  * We must create a temporary copy of the command since the command we get
1286  * may be the result from getenv(), which returns a pointer directly to
1287  * the environment data, which may change magicly when the command we run
1288  * creates or modifies environment variables (like "bootp" does).
1289  */
1290
1291 int run_command (const char *cmd, int flag)
1292 {
1293         cmd_tbl_t *cmdtp;
1294         char cmdbuf[CFG_CBSIZE];        /* working copy of cmd          */
1295         char *token;                    /* start of token in cmdbuf     */
1296         char *sep;                      /* end of token (separator) in cmdbuf */
1297         char finaltoken[CFG_CBSIZE];
1298         char *str = cmdbuf;
1299         char *argv[CFG_MAXARGS + 1];    /* NULL terminated      */
1300         int argc, inquotes;
1301         int repeatable = 1;
1302         int rc = 0;
1303
1304 #ifdef DEBUG_PARSER
1305         printf ("[RUN_COMMAND] cmd[%p]=\"", cmd);
1306         puts (cmd ? cmd : "NULL");      /* use puts - string may be loooong */
1307         puts ("\"\n");
1308 #endif
1309
1310         clear_ctrlc();          /* forget any previous Control C */
1311
1312         if (!cmd || !*cmd) {
1313                 return -1;      /* empty command */
1314         }
1315
1316         if (strlen(cmd) >= CFG_CBSIZE) {
1317                 puts ("## Command too long!\n");
1318                 return -1;
1319         }
1320
1321         strcpy (cmdbuf, cmd);
1322
1323         /* Process separators and check for invalid
1324          * repeatable commands
1325          */
1326
1327 #ifdef DEBUG_PARSER
1328         printf ("[PROCESS_SEPARATORS] %s\n", cmd);
1329 #endif
1330         while (*str) {
1331
1332                 /*
1333                  * Find separator, or string end
1334                  * Allow simple escape of ';' by writing "\;"
1335                  */
1336                 for (inquotes = 0, sep = str; *sep; sep++) {
1337                         if ((*sep=='\'') &&
1338                             (*(sep-1) != '\\'))
1339                                 inquotes=!inquotes;
1340
1341                         if (!inquotes &&
1342                             (*sep == ';') &&    /* separator            */
1343                             ( sep != str) &&    /* past string start    */
1344                             (*(sep-1) != '\\')) /* and NOT escaped      */
1345                                 break;
1346                 }
1347
1348                 /*
1349                  * Limit the token to data between separators
1350                  */
1351                 token = str;
1352                 if (*sep) {
1353                         str = sep + 1;  /* start of command for next pass */
1354                         *sep = '\0';
1355                 }
1356                 else
1357                         str = sep;      /* no more commands for next pass */
1358 #ifdef DEBUG_PARSER
1359                 printf ("token: \"%s\"\n", token);
1360 #endif
1361
1362                 /* find macros in this token and replace them */
1363                 process_macros (token, finaltoken);
1364
1365                 /* Extract arguments */
1366                 if ((argc = parse_line (finaltoken, argv)) == 0) {
1367                         rc = -1;        /* no command at all */
1368                         continue;
1369                 }
1370
1371                 /* Look up command in command table */
1372                 if ((cmdtp = find_cmd(argv[0])) == NULL) {
1373                         printf ("Unknown command '%s' - try 'help'\n", argv[0]);
1374                         rc = -1;        /* give up after bad command */
1375                         continue;
1376                 }
1377
1378                 /* found - check max args */
1379                 if (argc > cmdtp->maxargs) {
1380                         printf ("Usage:\n%s\n", cmdtp->usage);
1381                         rc = -1;
1382                         continue;
1383                 }
1384
1385 #if defined(CONFIG_CMD_BOOTD)
1386                 /* avoid "bootd" recursion */
1387                 if (cmdtp->cmd == do_bootd) {
1388 #ifdef DEBUG_PARSER
1389                         printf ("[%s]\n", finaltoken);
1390 #endif
1391                         if (flag & CMD_FLAG_BOOTD) {
1392                                 puts ("'bootd' recursion detected\n");
1393                                 rc = -1;
1394                                 continue;
1395                         } else {
1396                                 flag |= CMD_FLAG_BOOTD;
1397                         }
1398                 }
1399 #endif
1400
1401                 /* OK - call function to do the command */
1402                 if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) {
1403                         rc = -1;
1404                 }
1405
1406                 repeatable &= cmdtp->repeatable;
1407
1408                 /* Did the user stop this? */
1409                 if (had_ctrlc ())
1410                         return -1;      /* if stopped then not repeatable */
1411         }
1412
1413         return rc ? rc : repeatable;
1414 }
1415
1416 /****************************************************************************/
1417
1418 #if defined(CONFIG_CMD_RUN)
1419 int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
1420 {
1421         int i;
1422
1423         if (argc < 2) {
1424                 printf ("Usage:\n%s\n", cmdtp->usage);
1425                 return 1;
1426         }
1427
1428         for (i=1; i<argc; ++i) {
1429                 char *arg;
1430
1431                 if ((arg = getenv (argv[i])) == NULL) {
1432                         printf ("## Error: \"%s\" not defined\n", argv[i]);
1433                         return 1;
1434                 }
1435 #ifndef CFG_HUSH_PARSER
1436                 if (run_command (arg, flag) == -1)
1437                         return 1;
1438 #else
1439                 if (parse_string_outer(arg,
1440                     FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0)
1441                         return 1;
1442 #endif
1443         }
1444         return 0;
1445 }
1446 #endif