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 #include <fdtdec.h> 34 #include <malloc.h> 35 #include <version.h> 36 #ifdef CONFIG_MODEM_SUPPORT 37 #include <malloc.h> /* for free() prototype */ 38 #endif 39 40 #ifdef CONFIG_SYS_HUSH_PARSER 41 #include <hush.h> 42 #endif 43 44 #ifdef CONFIG_OF_CONTROL 45 #include <fdtdec.h> 46 #endif 47 48 #include <post.h> 49 #include <linux/ctype.h> 50 #include <menu.h> 51 52 DECLARE_GLOBAL_DATA_PTR; 53 54 /* 55 * Board-specific Platform code can reimplement show_boot_progress () if needed 56 */ 57 void inline __show_boot_progress (int val) {} 58 void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress"))); 59 60 #define MAX_DELAY_STOP_STR 32 61 62 #undef DEBUG_PARSER 63 64 char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */ 65 66 static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen); 67 static const char erase_seq[] = "\b \b"; /* erase sequence */ 68 static const char tab_seq[] = " "; /* used to expand TABs */ 69 70 #ifdef CONFIG_BOOT_RETRY_TIME 71 static uint64_t endtime = 0; /* must be set, default is instant timeout */ 72 static int retry_time = -1; /* -1 so can call readline before main_loop */ 73 #endif 74 75 #define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk()) 76 77 #ifndef CONFIG_BOOT_RETRY_MIN 78 #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME 79 #endif 80 81 #ifdef CONFIG_MODEM_SUPPORT 82 int do_mdm_init = 0; 83 extern void mdm_init(void); /* defined in board.c */ 84 #endif 85 86 /*************************************************************************** 87 * Watch for 'delay' seconds for autoboot stop or autoboot delay string. 88 * returns: 0 - no key string, allow autoboot 1 - got key string, abort 89 */ 90 #if defined(CONFIG_BOOTDELAY) 91 # if defined(CONFIG_AUTOBOOT_KEYED) 92 static int abortboot_keyed(int bootdelay) 93 { 94 int abort = 0; 95 uint64_t etime = endtick(bootdelay); 96 struct { 97 char* str; 98 u_int len; 99 int retry; 100 } 101 delaykey [] = { 102 { str: getenv ("bootdelaykey"), retry: 1 }, 103 { str: getenv ("bootdelaykey2"), retry: 1 }, 104 { str: getenv ("bootstopkey"), retry: 0 }, 105 { str: getenv ("bootstopkey2"), retry: 0 }, 106 }; 107 108 char presskey [MAX_DELAY_STOP_STR]; 109 u_int presskey_len = 0; 110 u_int presskey_max = 0; 111 u_int i; 112 113 #ifndef CONFIG_ZERO_BOOTDELAY_CHECK 114 if (bootdelay == 0) 115 return 0; 116 #endif 117 118 # ifdef CONFIG_AUTOBOOT_PROMPT 119 printf(CONFIG_AUTOBOOT_PROMPT); 120 # endif 121 122 # ifdef CONFIG_AUTOBOOT_DELAY_STR 123 if (delaykey[0].str == NULL) 124 delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR; 125 # endif 126 # ifdef CONFIG_AUTOBOOT_DELAY_STR2 127 if (delaykey[1].str == NULL) 128 delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2; 129 # endif 130 # ifdef CONFIG_AUTOBOOT_STOP_STR 131 if (delaykey[2].str == NULL) 132 delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR; 133 # endif 134 # ifdef CONFIG_AUTOBOOT_STOP_STR2 135 if (delaykey[3].str == NULL) 136 delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2; 137 # endif 138 139 for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { 140 delaykey[i].len = delaykey[i].str == NULL ? 141 0 : strlen (delaykey[i].str); 142 delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ? 143 MAX_DELAY_STOP_STR : delaykey[i].len; 144 145 presskey_max = presskey_max > delaykey[i].len ? 146 presskey_max : delaykey[i].len; 147 148 # if DEBUG_BOOTKEYS 149 printf("%s key:<%s>\n", 150 delaykey[i].retry ? "delay" : "stop", 151 delaykey[i].str ? delaykey[i].str : "NULL"); 152 # endif 153 } 154 155 /* In order to keep up with incoming data, check timeout only 156 * when catch up. 157 */ 158 do { 159 if (tstc()) { 160 if (presskey_len < presskey_max) { 161 presskey [presskey_len ++] = getc(); 162 } 163 else { 164 for (i = 0; i < presskey_max - 1; i ++) 165 presskey [i] = presskey [i + 1]; 166 167 presskey [i] = getc(); 168 } 169 } 170 171 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 } while (!abort && get_ticks() <= etime); 191 192 # if DEBUG_BOOTKEYS 193 if (!abort) 194 puts("key timeout\n"); 195 # endif 196 197 #ifdef CONFIG_SILENT_CONSOLE 198 if (abort) 199 gd->flags &= ~GD_FLG_SILENT; 200 #endif 201 202 return abort; 203 } 204 205 # else /* !defined(CONFIG_AUTOBOOT_KEYED) */ 206 207 #ifdef CONFIG_MENUKEY 208 static int menukey = 0; 209 #endif 210 211 static int abortboot_normal(int bootdelay) 212 { 213 int abort = 0; 214 unsigned long ts; 215 216 #ifdef CONFIG_MENUPROMPT 217 printf(CONFIG_MENUPROMPT); 218 #else 219 if (bootdelay >= 0) 220 printf("Hit any key to stop autoboot: %2d ", bootdelay); 221 #endif 222 223 #if defined CONFIG_ZERO_BOOTDELAY_CHECK 224 /* 225 * Check if key already pressed 226 * Don't check if bootdelay < 0 227 */ 228 if (bootdelay >= 0) { 229 if (tstc()) { /* we got a key press */ 230 (void) getc(); /* consume input */ 231 puts ("\b\b\b 0"); 232 abort = 1; /* don't auto boot */ 233 } 234 } 235 #endif 236 237 while ((bootdelay > 0) && (!abort)) { 238 --bootdelay; 239 /* delay 1000 ms */ 240 ts = get_timer(0); 241 do { 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 } while (!abort && get_timer(ts) < 1000); 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 */ 268 269 static int abortboot(int bootdelay) 270 { 271 #ifdef CONFIG_AUTOBOOT_KEYED 272 return abortboot_keyed(bootdelay); 273 #else 274 return abortboot_normal(bootdelay); 275 #endif 276 } 277 #endif /* CONFIG_BOOTDELAY */ 278 279 /* 280 * Runs the given boot command securely. Specifically: 281 * - Doesn't run the command with the shell (run_command or parse_string_outer), 282 * since that's a lot of code surface that an attacker might exploit. 283 * Because of this, we don't do any argument parsing--the secure boot command 284 * has to be a full-fledged u-boot command. 285 * - Doesn't check for keypresses before booting, since that could be a 286 * security hole; also disables Ctrl-C. 287 * - Doesn't allow the command to return. 288 * 289 * Upon any failures, this function will drop into an infinite loop after 290 * printing the error message to console. 291 */ 292 293 #if defined(CONFIG_BOOTDELAY) && defined(CONFIG_OF_CONTROL) 294 static void secure_boot_cmd(char *cmd) 295 { 296 cmd_tbl_t *cmdtp; 297 int rc; 298 299 if (!cmd) { 300 printf("## Error: Secure boot command not specified\n"); 301 goto err; 302 } 303 304 /* Disable Ctrl-C just in case some command is used that checks it. */ 305 disable_ctrlc(1); 306 307 /* Find the command directly. */ 308 cmdtp = find_cmd(cmd); 309 if (!cmdtp) { 310 printf("## Error: \"%s\" not defined\n", cmd); 311 goto err; 312 } 313 314 /* Run the command, forcing no flags and faking argc and argv. */ 315 rc = (cmdtp->cmd)(cmdtp, 0, 1, &cmd); 316 317 /* Shouldn't ever return from boot command. */ 318 printf("## Error: \"%s\" returned (code %d)\n", cmd, rc); 319 320 err: 321 /* 322 * Not a whole lot to do here. Rebooting won't help much, since we'll 323 * just end up right back here. Just loop. 324 */ 325 hang(); 326 } 327 328 static void process_fdt_options(const void *blob) 329 { 330 ulong addr; 331 332 /* Add an env variable to point to a kernel payload, if available */ 333 addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0); 334 if (addr) 335 setenv_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr)); 336 337 /* Add an env variable to point to a root disk, if available */ 338 addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0); 339 if (addr) 340 setenv_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr)); 341 } 342 #endif /* CONFIG_OF_CONTROL */ 343 344 #ifdef CONFIG_BOOTDELAY 345 static void process_boot_delay(void) 346 { 347 #ifdef CONFIG_OF_CONTROL 348 char *env; 349 #endif 350 char *s; 351 int bootdelay; 352 #ifdef CONFIG_BOOTCOUNT_LIMIT 353 unsigned long bootcount = 0; 354 unsigned long bootlimit = 0; 355 char *bcs; 356 char bcs_set[16]; 357 #endif /* CONFIG_BOOTCOUNT_LIMIT */ 358 359 #ifdef CONFIG_BOOTCOUNT_LIMIT 360 bootcount = bootcount_load(); 361 bootcount++; 362 bootcount_store (bootcount); 363 sprintf (bcs_set, "%lu", bootcount); 364 setenv ("bootcount", bcs_set); 365 bcs = getenv ("bootlimit"); 366 bootlimit = bcs ? simple_strtoul (bcs, NULL, 10) : 0; 367 #endif /* CONFIG_BOOTCOUNT_LIMIT */ 368 369 s = getenv ("bootdelay"); 370 bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY; 371 372 debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay); 373 374 #if defined(CONFIG_MENU_SHOW) 375 bootdelay = menu_show(bootdelay); 376 #endif 377 # ifdef CONFIG_BOOT_RETRY_TIME 378 init_cmd_timeout (); 379 # endif /* CONFIG_BOOT_RETRY_TIME */ 380 381 #ifdef CONFIG_POST 382 if (gd->flags & GD_FLG_POSTFAIL) { 383 s = getenv("failbootcmd"); 384 } 385 else 386 #endif /* CONFIG_POST */ 387 #ifdef CONFIG_BOOTCOUNT_LIMIT 388 if (bootlimit && (bootcount > bootlimit)) { 389 printf ("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n", 390 (unsigned)bootlimit); 391 s = getenv ("altbootcmd"); 392 } 393 else 394 #endif /* CONFIG_BOOTCOUNT_LIMIT */ 395 s = getenv ("bootcmd"); 396 #ifdef CONFIG_OF_CONTROL 397 /* Allow the fdt to override the boot command */ 398 env = fdtdec_get_config_string(gd->fdt_blob, "bootcmd"); 399 if (env) 400 s = env; 401 402 process_fdt_options(gd->fdt_blob); 403 404 /* 405 * If the bootsecure option was chosen, use secure_boot_cmd(). 406 * Always use 'env' in this case, since bootsecure requres that the 407 * bootcmd was specified in the FDT too. 408 */ 409 if (fdtdec_get_config_int(gd->fdt_blob, "bootsecure", 0)) 410 secure_boot_cmd(env); 411 412 #endif /* CONFIG_OF_CONTROL */ 413 414 debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>"); 415 416 if (bootdelay != -1 && s && !abortboot(bootdelay)) { 417 #ifdef CONFIG_AUTOBOOT_KEYED 418 int prev = disable_ctrlc(1); /* disable Control C checking */ 419 #endif 420 421 run_command_list(s, -1, 0); 422 423 #ifdef CONFIG_AUTOBOOT_KEYED 424 disable_ctrlc(prev); /* restore Control C checking */ 425 #endif 426 } 427 428 #ifdef CONFIG_MENUKEY 429 if (menukey == CONFIG_MENUKEY) { 430 s = getenv("menucmd"); 431 if (s) 432 run_command_list(s, -1, 0); 433 } 434 #endif /* CONFIG_MENUKEY */ 435 } 436 #endif /* CONFIG_BOOTDELAY */ 437 438 void main_loop(void) 439 { 440 #ifndef CONFIG_SYS_HUSH_PARSER 441 static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, }; 442 int len; 443 int rc = 1; 444 int flag; 445 #endif 446 #ifdef CONFIG_PREBOOT 447 char *p; 448 #endif 449 450 bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop"); 451 452 #ifdef CONFIG_MODEM_SUPPORT 453 debug("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init); 454 if (do_mdm_init) { 455 char *str = strdup(getenv("mdm_cmd")); 456 setenv("preboot", str); /* set or delete definition */ 457 if (str != NULL) 458 free(str); 459 mdm_init(); /* wait for modem connection */ 460 } 461 #endif /* CONFIG_MODEM_SUPPORT */ 462 463 #ifdef CONFIG_VERSION_VARIABLE 464 { 465 setenv("ver", version_string); /* set version variable */ 466 } 467 #endif /* CONFIG_VERSION_VARIABLE */ 468 469 #ifdef CONFIG_SYS_HUSH_PARSER 470 u_boot_hush_start(); 471 #endif 472 473 #if defined(CONFIG_HUSH_INIT_VAR) 474 hush_init_var(); 475 #endif 476 477 #ifdef CONFIG_PREBOOT 478 p = getenv("preboot"); 479 if (p != NULL) { 480 # ifdef CONFIG_AUTOBOOT_KEYED 481 int prev = disable_ctrlc(1); /* disable Control C checking */ 482 # endif 483 484 run_command_list(p, -1, 0); 485 486 # ifdef CONFIG_AUTOBOOT_KEYED 487 disable_ctrlc(prev); /* restore Control C checking */ 488 # endif 489 } 490 #endif /* CONFIG_PREBOOT */ 491 492 #if defined(CONFIG_UPDATE_TFTP) 493 update_tftp(0UL); 494 #endif /* CONFIG_UPDATE_TFTP */ 495 496 #ifdef CONFIG_BOOTDELAY 497 process_boot_delay(); 498 #endif 499 /* 500 * Main Loop for Monitor Command Processing 501 */ 502 #ifdef CONFIG_SYS_HUSH_PARSER 503 parse_file_outer(); 504 /* This point is never reached */ 505 for (;;); 506 #else 507 for (;;) { 508 #ifdef CONFIG_BOOT_RETRY_TIME 509 if (rc >= 0) { 510 /* Saw enough of a valid command to 511 * restart the timeout. 512 */ 513 reset_cmd_timeout(); 514 } 515 #endif 516 len = readline (CONFIG_SYS_PROMPT); 517 518 flag = 0; /* assume no special flags for now */ 519 if (len > 0) 520 strcpy (lastcommand, console_buffer); 521 else if (len == 0) 522 flag |= CMD_FLAG_REPEAT; 523 #ifdef CONFIG_BOOT_RETRY_TIME 524 else if (len == -2) { 525 /* -2 means timed out, retry autoboot 526 */ 527 puts ("\nTimed out waiting for command\n"); 528 # ifdef CONFIG_RESET_TO_RETRY 529 /* Reinit board to run initialization code again */ 530 do_reset (NULL, 0, 0, NULL); 531 # else 532 return; /* retry autoboot */ 533 # endif 534 } 535 #endif 536 537 if (len == -1) 538 puts ("<INTERRUPT>\n"); 539 else 540 rc = run_command(lastcommand, flag); 541 542 if (rc <= 0) { 543 /* invalid command or not repeatable, forget it */ 544 lastcommand[0] = 0; 545 } 546 } 547 #endif /*CONFIG_SYS_HUSH_PARSER*/ 548 } 549 550 #ifdef CONFIG_BOOT_RETRY_TIME 551 /*************************************************************************** 552 * initialize command line timeout 553 */ 554 void init_cmd_timeout(void) 555 { 556 char *s = getenv ("bootretry"); 557 558 if (s != NULL) 559 retry_time = (int)simple_strtol(s, NULL, 10); 560 else 561 retry_time = CONFIG_BOOT_RETRY_TIME; 562 563 if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN) 564 retry_time = CONFIG_BOOT_RETRY_MIN; 565 } 566 567 /*************************************************************************** 568 * reset command line timeout to retry_time seconds 569 */ 570 void reset_cmd_timeout(void) 571 { 572 endtime = endtick(retry_time); 573 } 574 #endif 575 576 #ifdef CONFIG_CMDLINE_EDITING 577 578 /* 579 * cmdline-editing related codes from vivi. 580 * Author: Janghoon Lyu <nandy@mizi.com> 581 */ 582 583 #define putnstr(str,n) do { \ 584 printf ("%.*s", (int)n, str); \ 585 } while (0) 586 587 #define CTL_CH(c) ((c) - 'a' + 1) 588 #define CTL_BACKSPACE ('\b') 589 #define DEL ((char)255) 590 #define DEL7 ((char)127) 591 #define CREAD_HIST_CHAR ('!') 592 593 #define getcmd_putch(ch) putc(ch) 594 #define getcmd_getch() getc() 595 #define getcmd_cbeep() getcmd_putch('\a') 596 597 #define HIST_MAX 20 598 #define HIST_SIZE CONFIG_SYS_CBSIZE 599 600 static int hist_max; 601 static int hist_add_idx; 602 static int hist_cur = -1; 603 static unsigned hist_num; 604 605 static char *hist_list[HIST_MAX]; 606 static char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */ 607 608 #define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1) 609 610 static void hist_init(void) 611 { 612 int i; 613 614 hist_max = 0; 615 hist_add_idx = 0; 616 hist_cur = -1; 617 hist_num = 0; 618 619 for (i = 0; i < HIST_MAX; i++) { 620 hist_list[i] = hist_lines[i]; 621 hist_list[i][0] = '\0'; 622 } 623 } 624 625 static void cread_add_to_hist(char *line) 626 { 627 strcpy(hist_list[hist_add_idx], line); 628 629 if (++hist_add_idx >= HIST_MAX) 630 hist_add_idx = 0; 631 632 if (hist_add_idx > hist_max) 633 hist_max = hist_add_idx; 634 635 hist_num++; 636 } 637 638 static char* hist_prev(void) 639 { 640 char *ret; 641 int old_cur; 642 643 if (hist_cur < 0) 644 return NULL; 645 646 old_cur = hist_cur; 647 if (--hist_cur < 0) 648 hist_cur = hist_max; 649 650 if (hist_cur == hist_add_idx) { 651 hist_cur = old_cur; 652 ret = NULL; 653 } else 654 ret = hist_list[hist_cur]; 655 656 return (ret); 657 } 658 659 static char* hist_next(void) 660 { 661 char *ret; 662 663 if (hist_cur < 0) 664 return NULL; 665 666 if (hist_cur == hist_add_idx) 667 return NULL; 668 669 if (++hist_cur > hist_max) 670 hist_cur = 0; 671 672 if (hist_cur == hist_add_idx) { 673 ret = ""; 674 } else 675 ret = hist_list[hist_cur]; 676 677 return (ret); 678 } 679 680 #ifndef CONFIG_CMDLINE_EDITING 681 static void cread_print_hist_list(void) 682 { 683 int i; 684 unsigned long n; 685 686 n = hist_num - hist_max; 687 688 i = hist_add_idx + 1; 689 while (1) { 690 if (i > hist_max) 691 i = 0; 692 if (i == hist_add_idx) 693 break; 694 printf("%s\n", hist_list[i]); 695 n++; 696 i++; 697 } 698 } 699 #endif /* CONFIG_CMDLINE_EDITING */ 700 701 #define BEGINNING_OF_LINE() { \ 702 while (num) { \ 703 getcmd_putch(CTL_BACKSPACE); \ 704 num--; \ 705 } \ 706 } 707 708 #define ERASE_TO_EOL() { \ 709 if (num < eol_num) { \ 710 printf("%*s", (int)(eol_num - num), ""); \ 711 do { \ 712 getcmd_putch(CTL_BACKSPACE); \ 713 } while (--eol_num > num); \ 714 } \ 715 } 716 717 #define REFRESH_TO_EOL() { \ 718 if (num < eol_num) { \ 719 wlen = eol_num - num; \ 720 putnstr(buf + num, wlen); \ 721 num = eol_num; \ 722 } \ 723 } 724 725 static void cread_add_char(char ichar, int insert, unsigned long *num, 726 unsigned long *eol_num, char *buf, unsigned long len) 727 { 728 unsigned long wlen; 729 730 /* room ??? */ 731 if (insert || *num == *eol_num) { 732 if (*eol_num > len - 1) { 733 getcmd_cbeep(); 734 return; 735 } 736 (*eol_num)++; 737 } 738 739 if (insert) { 740 wlen = *eol_num - *num; 741 if (wlen > 1) { 742 memmove(&buf[*num+1], &buf[*num], wlen-1); 743 } 744 745 buf[*num] = ichar; 746 putnstr(buf + *num, wlen); 747 (*num)++; 748 while (--wlen) { 749 getcmd_putch(CTL_BACKSPACE); 750 } 751 } else { 752 /* echo the character */ 753 wlen = 1; 754 buf[*num] = ichar; 755 putnstr(buf + *num, wlen); 756 (*num)++; 757 } 758 } 759 760 static void cread_add_str(char *str, int strsize, int insert, unsigned long *num, 761 unsigned long *eol_num, char *buf, unsigned long len) 762 { 763 while (strsize--) { 764 cread_add_char(*str, insert, num, eol_num, buf, len); 765 str++; 766 } 767 } 768 769 static int cread_line(const char *const prompt, char *buf, unsigned int *len, 770 int timeout) 771 { 772 unsigned long num = 0; 773 unsigned long eol_num = 0; 774 unsigned long wlen; 775 char ichar; 776 int insert = 1; 777 int esc_len = 0; 778 char esc_save[8]; 779 int init_len = strlen(buf); 780 int first = 1; 781 782 if (init_len) 783 cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len); 784 785 while (1) { 786 #ifdef CONFIG_BOOT_RETRY_TIME 787 while (!tstc()) { /* while no incoming data */ 788 if (retry_time >= 0 && get_ticks() > endtime) 789 return (-2); /* timed out */ 790 WATCHDOG_RESET(); 791 } 792 #endif 793 if (first && timeout) { 794 uint64_t etime = endtick(timeout); 795 796 while (!tstc()) { /* while no incoming data */ 797 if (get_ticks() >= etime) 798 return -2; /* timed out */ 799 WATCHDOG_RESET(); 800 } 801 first = 0; 802 } 803 804 ichar = getcmd_getch(); 805 806 if ((ichar == '\n') || (ichar == '\r')) { 807 putc('\n'); 808 break; 809 } 810 811 /* 812 * handle standard linux xterm esc sequences for arrow key, etc. 813 */ 814 if (esc_len != 0) { 815 if (esc_len == 1) { 816 if (ichar == '[') { 817 esc_save[esc_len] = ichar; 818 esc_len = 2; 819 } else { 820 cread_add_str(esc_save, esc_len, insert, 821 &num, &eol_num, buf, *len); 822 esc_len = 0; 823 } 824 continue; 825 } 826 827 switch (ichar) { 828 829 case 'D': /* <- key */ 830 ichar = CTL_CH('b'); 831 esc_len = 0; 832 break; 833 case 'C': /* -> key */ 834 ichar = CTL_CH('f'); 835 esc_len = 0; 836 break; /* pass off to ^F handler */ 837 case 'H': /* Home key */ 838 ichar = CTL_CH('a'); 839 esc_len = 0; 840 break; /* pass off to ^A handler */ 841 case 'A': /* up arrow */ 842 ichar = CTL_CH('p'); 843 esc_len = 0; 844 break; /* pass off to ^P handler */ 845 case 'B': /* down arrow */ 846 ichar = CTL_CH('n'); 847 esc_len = 0; 848 break; /* pass off to ^N handler */ 849 default: 850 esc_save[esc_len++] = ichar; 851 cread_add_str(esc_save, esc_len, insert, 852 &num, &eol_num, buf, *len); 853 esc_len = 0; 854 continue; 855 } 856 } 857 858 switch (ichar) { 859 case 0x1b: 860 if (esc_len == 0) { 861 esc_save[esc_len] = ichar; 862 esc_len = 1; 863 } else { 864 puts("impossible condition #876\n"); 865 esc_len = 0; 866 } 867 break; 868 869 case CTL_CH('a'): 870 BEGINNING_OF_LINE(); 871 break; 872 case CTL_CH('c'): /* ^C - break */ 873 *buf = '\0'; /* discard input */ 874 return (-1); 875 case CTL_CH('f'): 876 if (num < eol_num) { 877 getcmd_putch(buf[num]); 878 num++; 879 } 880 break; 881 case CTL_CH('b'): 882 if (num) { 883 getcmd_putch(CTL_BACKSPACE); 884 num--; 885 } 886 break; 887 case CTL_CH('d'): 888 if (num < eol_num) { 889 wlen = eol_num - num - 1; 890 if (wlen) { 891 memmove(&buf[num], &buf[num+1], wlen); 892 putnstr(buf + num, wlen); 893 } 894 895 getcmd_putch(' '); 896 do { 897 getcmd_putch(CTL_BACKSPACE); 898 } while (wlen--); 899 eol_num--; 900 } 901 break; 902 case CTL_CH('k'): 903 ERASE_TO_EOL(); 904 break; 905 case CTL_CH('e'): 906 REFRESH_TO_EOL(); 907 break; 908 case CTL_CH('o'): 909 insert = !insert; 910 break; 911 case CTL_CH('x'): 912 case CTL_CH('u'): 913 BEGINNING_OF_LINE(); 914 ERASE_TO_EOL(); 915 break; 916 case DEL: 917 case DEL7: 918 case 8: 919 if (num) { 920 wlen = eol_num - num; 921 num--; 922 memmove(&buf[num], &buf[num+1], wlen); 923 getcmd_putch(CTL_BACKSPACE); 924 putnstr(buf + num, wlen); 925 getcmd_putch(' '); 926 do { 927 getcmd_putch(CTL_BACKSPACE); 928 } while (wlen--); 929 eol_num--; 930 } 931 break; 932 case CTL_CH('p'): 933 case CTL_CH('n'): 934 { 935 char * hline; 936 937 esc_len = 0; 938 939 if (ichar == CTL_CH('p')) 940 hline = hist_prev(); 941 else 942 hline = hist_next(); 943 944 if (!hline) { 945 getcmd_cbeep(); 946 continue; 947 } 948 949 /* nuke the current line */ 950 /* first, go home */ 951 BEGINNING_OF_LINE(); 952 953 /* erase to end of line */ 954 ERASE_TO_EOL(); 955 956 /* copy new line into place and display */ 957 strcpy(buf, hline); 958 eol_num = strlen(buf); 959 REFRESH_TO_EOL(); 960 continue; 961 } 962 #ifdef CONFIG_AUTO_COMPLETE 963 case '\t': { 964 int num2, col; 965 966 /* do not autocomplete when in the middle */ 967 if (num < eol_num) { 968 getcmd_cbeep(); 969 break; 970 } 971 972 buf[num] = '\0'; 973 col = strlen(prompt) + eol_num; 974 num2 = num; 975 if (cmd_auto_complete(prompt, buf, &num2, &col)) { 976 col = num2 - num; 977 num += col; 978 eol_num += col; 979 } 980 break; 981 } 982 #endif 983 default: 984 cread_add_char(ichar, insert, &num, &eol_num, buf, *len); 985 break; 986 } 987 } 988 *len = eol_num; 989 buf[eol_num] = '\0'; /* lose the newline */ 990 991 if (buf[0] && buf[0] != CREAD_HIST_CHAR) 992 cread_add_to_hist(buf); 993 hist_cur = hist_add_idx; 994 995 return 0; 996 } 997 998 #endif /* CONFIG_CMDLINE_EDITING */ 999 1000 /****************************************************************************/ 1001 1002 /* 1003 * Prompt for input and read a line. 1004 * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0, 1005 * time out when time goes past endtime (timebase time in ticks). 1006 * Return: number of read characters 1007 * -1 if break 1008 * -2 if timed out 1009 */ 1010 int readline (const char *const prompt) 1011 { 1012 /* 1013 * If console_buffer isn't 0-length the user will be prompted to modify 1014 * it instead of entering it from scratch as desired. 1015 */ 1016 console_buffer[0] = '\0'; 1017 1018 return readline_into_buffer(prompt, console_buffer, 0); 1019 } 1020 1021 1022 int readline_into_buffer(const char *const prompt, char *buffer, int timeout) 1023 { 1024 char *p = buffer; 1025 #ifdef CONFIG_CMDLINE_EDITING 1026 unsigned int len = CONFIG_SYS_CBSIZE; 1027 int rc; 1028 static int initted = 0; 1029 1030 /* 1031 * History uses a global array which is not 1032 * writable until after relocation to RAM. 1033 * Revert to non-history version if still 1034 * running from flash. 1035 */ 1036 if (gd->flags & GD_FLG_RELOC) { 1037 if (!initted) { 1038 hist_init(); 1039 initted = 1; 1040 } 1041 1042 if (prompt) 1043 puts (prompt); 1044 1045 rc = cread_line(prompt, p, &len, timeout); 1046 return rc < 0 ? rc : len; 1047 1048 } else { 1049 #endif /* CONFIG_CMDLINE_EDITING */ 1050 char * p_buf = p; 1051 int n = 0; /* buffer index */ 1052 int plen = 0; /* prompt length */ 1053 int col; /* output column cnt */ 1054 char c; 1055 1056 /* print prompt */ 1057 if (prompt) { 1058 plen = strlen (prompt); 1059 puts (prompt); 1060 } 1061 col = plen; 1062 1063 for (;;) { 1064 #ifdef CONFIG_BOOT_RETRY_TIME 1065 while (!tstc()) { /* while no incoming data */ 1066 if (retry_time >= 0 && get_ticks() > endtime) 1067 return (-2); /* timed out */ 1068 WATCHDOG_RESET(); 1069 } 1070 #endif 1071 WATCHDOG_RESET(); /* Trigger watchdog, if needed */ 1072 1073 #ifdef CONFIG_SHOW_ACTIVITY 1074 while (!tstc()) { 1075 show_activity(0); 1076 WATCHDOG_RESET(); 1077 } 1078 #endif 1079 c = getc(); 1080 1081 /* 1082 * Special character handling 1083 */ 1084 switch (c) { 1085 case '\r': /* Enter */ 1086 case '\n': 1087 *p = '\0'; 1088 puts ("\r\n"); 1089 return (p - p_buf); 1090 1091 case '\0': /* nul */ 1092 continue; 1093 1094 case 0x03: /* ^C - break */ 1095 p_buf[0] = '\0'; /* discard input */ 1096 return (-1); 1097 1098 case 0x15: /* ^U - erase line */ 1099 while (col > plen) { 1100 puts (erase_seq); 1101 --col; 1102 } 1103 p = p_buf; 1104 n = 0; 1105 continue; 1106 1107 case 0x17: /* ^W - erase word */ 1108 p=delete_char(p_buf, p, &col, &n, plen); 1109 while ((n > 0) && (*p != ' ')) { 1110 p=delete_char(p_buf, p, &col, &n, plen); 1111 } 1112 continue; 1113 1114 case 0x08: /* ^H - backspace */ 1115 case 0x7F: /* DEL - backspace */ 1116 p=delete_char(p_buf, p, &col, &n, plen); 1117 continue; 1118 1119 default: 1120 /* 1121 * Must be a normal character then 1122 */ 1123 if (n < CONFIG_SYS_CBSIZE-2) { 1124 if (c == '\t') { /* expand TABs */ 1125 #ifdef CONFIG_AUTO_COMPLETE 1126 /* if auto completion triggered just continue */ 1127 *p = '\0'; 1128 if (cmd_auto_complete(prompt, console_buffer, &n, &col)) { 1129 p = p_buf + n; /* reset */ 1130 continue; 1131 } 1132 #endif 1133 puts (tab_seq+(col&07)); 1134 col += 8 - (col&07); 1135 } else { 1136 char buf[2]; 1137 1138 /* 1139 * Echo input using puts() to force am 1140 * LCD flush if we are using an LCD 1141 */ 1142 ++col; 1143 buf[0] = c; 1144 buf[1] = '\0'; 1145 puts(buf); 1146 } 1147 *p++ = c; 1148 ++n; 1149 } else { /* Buffer full */ 1150 putc ('\a'); 1151 } 1152 } 1153 } 1154 #ifdef CONFIG_CMDLINE_EDITING 1155 } 1156 #endif 1157 } 1158 1159 /****************************************************************************/ 1160 1161 static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen) 1162 { 1163 char *s; 1164 1165 if (*np == 0) { 1166 return (p); 1167 } 1168 1169 if (*(--p) == '\t') { /* will retype the whole line */ 1170 while (*colp > plen) { 1171 puts (erase_seq); 1172 (*colp)--; 1173 } 1174 for (s=buffer; s<p; ++s) { 1175 if (*s == '\t') { 1176 puts (tab_seq+((*colp) & 07)); 1177 *colp += 8 - ((*colp) & 07); 1178 } else { 1179 ++(*colp); 1180 putc (*s); 1181 } 1182 } 1183 } else { 1184 puts (erase_seq); 1185 (*colp)--; 1186 } 1187 (*np)--; 1188 return (p); 1189 } 1190 1191 /****************************************************************************/ 1192 1193 int parse_line (char *line, char *argv[]) 1194 { 1195 int nargs = 0; 1196 1197 #ifdef DEBUG_PARSER 1198 printf ("parse_line: \"%s\"\n", line); 1199 #endif 1200 while (nargs < CONFIG_SYS_MAXARGS) { 1201 1202 /* skip any white space */ 1203 while (isblank(*line)) 1204 ++line; 1205 1206 if (*line == '\0') { /* end of line, no more args */ 1207 argv[nargs] = NULL; 1208 #ifdef DEBUG_PARSER 1209 printf ("parse_line: nargs=%d\n", nargs); 1210 #endif 1211 return (nargs); 1212 } 1213 1214 argv[nargs++] = line; /* begin of argument string */ 1215 1216 /* find end of string */ 1217 while (*line && !isblank(*line)) 1218 ++line; 1219 1220 if (*line == '\0') { /* end of line, no more args */ 1221 argv[nargs] = NULL; 1222 #ifdef DEBUG_PARSER 1223 printf ("parse_line: nargs=%d\n", nargs); 1224 #endif 1225 return (nargs); 1226 } 1227 1228 *line++ = '\0'; /* terminate current arg */ 1229 } 1230 1231 printf ("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS); 1232 1233 #ifdef DEBUG_PARSER 1234 printf ("parse_line: nargs=%d\n", nargs); 1235 #endif 1236 return (nargs); 1237 } 1238 1239 /****************************************************************************/ 1240 1241 #ifndef CONFIG_SYS_HUSH_PARSER 1242 static void process_macros (const char *input, char *output) 1243 { 1244 char c, prev; 1245 const char *varname_start = NULL; 1246 int inputcnt = strlen (input); 1247 int outputcnt = CONFIG_SYS_CBSIZE; 1248 int state = 0; /* 0 = waiting for '$' */ 1249 1250 /* 1 = waiting for '(' or '{' */ 1251 /* 2 = waiting for ')' or '}' */ 1252 /* 3 = waiting for ''' */ 1253 #ifdef DEBUG_PARSER 1254 char *output_start = output; 1255 1256 printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input), 1257 input); 1258 #endif 1259 1260 prev = '\0'; /* previous character */ 1261 1262 while (inputcnt && outputcnt) { 1263 c = *input++; 1264 inputcnt--; 1265 1266 if (state != 3) { 1267 /* remove one level of escape characters */ 1268 if ((c == '\\') && (prev != '\\')) { 1269 if (inputcnt-- == 0) 1270 break; 1271 prev = c; 1272 c = *input++; 1273 } 1274 } 1275 1276 switch (state) { 1277 case 0: /* Waiting for (unescaped) $ */ 1278 if ((c == '\'') && (prev != '\\')) { 1279 state = 3; 1280 break; 1281 } 1282 if ((c == '$') && (prev != '\\')) { 1283 state++; 1284 } else { 1285 *(output++) = c; 1286 outputcnt--; 1287 } 1288 break; 1289 case 1: /* Waiting for ( */ 1290 if (c == '(' || c == '{') { 1291 state++; 1292 varname_start = input; 1293 } else { 1294 state = 0; 1295 *(output++) = '$'; 1296 outputcnt--; 1297 1298 if (outputcnt) { 1299 *(output++) = c; 1300 outputcnt--; 1301 } 1302 } 1303 break; 1304 case 2: /* Waiting for ) */ 1305 if (c == ')' || c == '}') { 1306 int i; 1307 char envname[CONFIG_SYS_CBSIZE], *envval; 1308 int envcnt = input - varname_start - 1; /* Varname # of chars */ 1309 1310 /* Get the varname */ 1311 for (i = 0; i < envcnt; i++) { 1312 envname[i] = varname_start[i]; 1313 } 1314 envname[i] = 0; 1315 1316 /* Get its value */ 1317 envval = getenv (envname); 1318 1319 /* Copy into the line if it exists */ 1320 if (envval != NULL) 1321 while ((*envval) && outputcnt) { 1322 *(output++) = *(envval++); 1323 outputcnt--; 1324 } 1325 /* Look for another '$' */ 1326 state = 0; 1327 } 1328 break; 1329 case 3: /* Waiting for ' */ 1330 if ((c == '\'') && (prev != '\\')) { 1331 state = 0; 1332 } else { 1333 *(output++) = c; 1334 outputcnt--; 1335 } 1336 break; 1337 } 1338 prev = c; 1339 } 1340 1341 if (outputcnt) 1342 *output = 0; 1343 else 1344 *(output - 1) = 0; 1345 1346 #ifdef DEBUG_PARSER 1347 printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n", 1348 strlen (output_start), output_start); 1349 #endif 1350 } 1351 1352 /**************************************************************************** 1353 * returns: 1354 * 1 - command executed, repeatable 1355 * 0 - command executed but not repeatable, interrupted commands are 1356 * always considered not repeatable 1357 * -1 - not executed (unrecognized, bootd recursion or too many args) 1358 * (If cmd is NULL or "" or longer than CONFIG_SYS_CBSIZE-1 it is 1359 * considered unrecognized) 1360 * 1361 * WARNING: 1362 * 1363 * We must create a temporary copy of the command since the command we get 1364 * may be the result from getenv(), which returns a pointer directly to 1365 * the environment data, which may change magicly when the command we run 1366 * creates or modifies environment variables (like "bootp" does). 1367 */ 1368 static int builtin_run_command(const char *cmd, int flag) 1369 { 1370 char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */ 1371 char *token; /* start of token in cmdbuf */ 1372 char *sep; /* end of token (separator) in cmdbuf */ 1373 char finaltoken[CONFIG_SYS_CBSIZE]; 1374 char *str = cmdbuf; 1375 char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ 1376 int argc, inquotes; 1377 int repeatable = 1; 1378 int rc = 0; 1379 1380 #ifdef DEBUG_PARSER 1381 printf ("[RUN_COMMAND] cmd[%p]=\"", cmd); 1382 puts (cmd ? cmd : "NULL"); /* use puts - string may be loooong */ 1383 puts ("\"\n"); 1384 #endif 1385 1386 clear_ctrlc(); /* forget any previous Control C */ 1387 1388 if (!cmd || !*cmd) { 1389 return -1; /* empty command */ 1390 } 1391 1392 if (strlen(cmd) >= CONFIG_SYS_CBSIZE) { 1393 puts ("## Command too long!\n"); 1394 return -1; 1395 } 1396 1397 strcpy (cmdbuf, cmd); 1398 1399 /* Process separators and check for invalid 1400 * repeatable commands 1401 */ 1402 1403 #ifdef DEBUG_PARSER 1404 printf ("[PROCESS_SEPARATORS] %s\n", cmd); 1405 #endif 1406 while (*str) { 1407 1408 /* 1409 * Find separator, or string end 1410 * Allow simple escape of ';' by writing "\;" 1411 */ 1412 for (inquotes = 0, sep = str; *sep; sep++) { 1413 if ((*sep=='\'') && 1414 (*(sep-1) != '\\')) 1415 inquotes=!inquotes; 1416 1417 if (!inquotes && 1418 (*sep == ';') && /* separator */ 1419 ( sep != str) && /* past string start */ 1420 (*(sep-1) != '\\')) /* and NOT escaped */ 1421 break; 1422 } 1423 1424 /* 1425 * Limit the token to data between separators 1426 */ 1427 token = str; 1428 if (*sep) { 1429 str = sep + 1; /* start of command for next pass */ 1430 *sep = '\0'; 1431 } 1432 else 1433 str = sep; /* no more commands for next pass */ 1434 #ifdef DEBUG_PARSER 1435 printf ("token: \"%s\"\n", token); 1436 #endif 1437 1438 /* find macros in this token and replace them */ 1439 process_macros (token, finaltoken); 1440 1441 /* Extract arguments */ 1442 if ((argc = parse_line (finaltoken, argv)) == 0) { 1443 rc = -1; /* no command at all */ 1444 continue; 1445 } 1446 1447 if (cmd_process(flag, argc, argv, &repeatable, NULL)) 1448 rc = -1; 1449 1450 /* Did the user stop this? */ 1451 if (had_ctrlc ()) 1452 return -1; /* if stopped then not repeatable */ 1453 } 1454 1455 return rc ? rc : repeatable; 1456 } 1457 #endif 1458 1459 /* 1460 * Run a command using the selected parser. 1461 * 1462 * @param cmd Command to run 1463 * @param flag Execution flags (CMD_FLAG_...) 1464 * @return 0 on success, or != 0 on error. 1465 */ 1466 int run_command(const char *cmd, int flag) 1467 { 1468 #ifndef CONFIG_SYS_HUSH_PARSER 1469 /* 1470 * builtin_run_command can return 0 or 1 for success, so clean up 1471 * its result. 1472 */ 1473 if (builtin_run_command(cmd, flag) == -1) 1474 return 1; 1475 1476 return 0; 1477 #else 1478 return parse_string_outer(cmd, 1479 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP); 1480 #endif 1481 } 1482 1483 #ifndef CONFIG_SYS_HUSH_PARSER 1484 /** 1485 * Execute a list of command separated by ; or \n using the built-in parser. 1486 * 1487 * This function cannot take a const char * for the command, since if it 1488 * finds newlines in the string, it replaces them with \0. 1489 * 1490 * @param cmd String containing list of commands 1491 * @param flag Execution flags (CMD_FLAG_...) 1492 * @return 0 on success, or != 0 on error. 1493 */ 1494 static int builtin_run_command_list(char *cmd, int flag) 1495 { 1496 char *line, *next; 1497 int rcode = 0; 1498 1499 /* 1500 * Break into individual lines, and execute each line; terminate on 1501 * error. 1502 */ 1503 line = next = cmd; 1504 while (*next) { 1505 if (*next == '\n') { 1506 *next = '\0'; 1507 /* run only non-empty commands */ 1508 if (*line) { 1509 debug("** exec: \"%s\"\n", line); 1510 if (builtin_run_command(line, 0) < 0) { 1511 rcode = 1; 1512 break; 1513 } 1514 } 1515 line = next + 1; 1516 } 1517 ++next; 1518 } 1519 if (rcode == 0 && *line) 1520 rcode = (builtin_run_command(line, 0) >= 0); 1521 1522 return rcode; 1523 } 1524 #endif 1525 1526 int run_command_list(const char *cmd, int len, int flag) 1527 { 1528 int need_buff = 1; 1529 char *buff = (char *)cmd; /* cast away const */ 1530 int rcode = 0; 1531 1532 if (len == -1) { 1533 len = strlen(cmd); 1534 #ifdef CONFIG_SYS_HUSH_PARSER 1535 /* hush will never change our string */ 1536 need_buff = 0; 1537 #else 1538 /* the built-in parser will change our string if it sees \n */ 1539 need_buff = strchr(cmd, '\n') != NULL; 1540 #endif 1541 } 1542 if (need_buff) { 1543 buff = malloc(len + 1); 1544 if (!buff) 1545 return 1; 1546 memcpy(buff, cmd, len); 1547 buff[len] = '\0'; 1548 } 1549 #ifdef CONFIG_SYS_HUSH_PARSER 1550 rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON); 1551 #else 1552 /* 1553 * This function will overwrite any \n it sees with a \0, which 1554 * is why it can't work with a const char *. Here we are making 1555 * using of internal knowledge of this function, to avoid always 1556 * doing a malloc() which is actually required only in a case that 1557 * is pretty rare. 1558 */ 1559 rcode = builtin_run_command_list(buff, flag); 1560 if (need_buff) 1561 free(buff); 1562 #endif 1563 1564 return rcode; 1565 } 1566 1567 /****************************************************************************/ 1568 1569 #if defined(CONFIG_CMD_RUN) 1570 int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) 1571 { 1572 int i; 1573 1574 if (argc < 2) 1575 return CMD_RET_USAGE; 1576 1577 for (i=1; i<argc; ++i) { 1578 char *arg; 1579 1580 if ((arg = getenv (argv[i])) == NULL) { 1581 printf ("## Error: \"%s\" not defined\n", argv[i]); 1582 return 1; 1583 } 1584 1585 if (run_command(arg, flag) != 0) 1586 return 1; 1587 } 1588 return 0; 1589 } 1590 #endif 1591