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