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 <command.h> 32 #include <fdtdec.h> 33 #include <hush.h> 34 #include <malloc.h> 35 #include <menu.h> 36 #include <post.h> 37 #include <version.h> 38 #include <watchdog.h> 39 #include <linux/ctype.h> 40 41 DECLARE_GLOBAL_DATA_PTR; 42 43 /* 44 * Board-specific Platform code can reimplement show_boot_progress () if needed 45 */ 46 void inline __show_boot_progress (int val) {} 47 void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress"))); 48 49 #define MAX_DELAY_STOP_STR 32 50 51 #undef DEBUG_PARSER 52 53 char console_buffer[CONFIG_SYS_CBSIZE + 1]; /* console I/O buffer */ 54 55 static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen); 56 static const char erase_seq[] = "\b \b"; /* erase sequence */ 57 static const char tab_seq[] = " "; /* used to expand TABs */ 58 59 #ifdef CONFIG_BOOT_RETRY_TIME 60 static uint64_t endtime = 0; /* must be set, default is instant timeout */ 61 static int retry_time = -1; /* -1 so can call readline before main_loop */ 62 #endif 63 64 #define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk()) 65 66 #ifndef CONFIG_BOOT_RETRY_MIN 67 #define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME 68 #endif 69 70 #ifdef CONFIG_MODEM_SUPPORT 71 int do_mdm_init = 0; 72 extern void mdm_init(void); /* defined in board.c */ 73 #endif 74 75 /*************************************************************************** 76 * Watch for 'delay' seconds for autoboot stop or autoboot delay string. 77 * returns: 0 - no key string, allow autoboot 1 - got key string, abort 78 */ 79 #if defined(CONFIG_BOOTDELAY) 80 # if defined(CONFIG_AUTOBOOT_KEYED) 81 static int abortboot_keyed(int bootdelay) 82 { 83 int abort = 0; 84 uint64_t etime = endtick(bootdelay); 85 struct { 86 char* str; 87 u_int len; 88 int retry; 89 } 90 delaykey [] = { 91 { str: getenv ("bootdelaykey"), retry: 1 }, 92 { str: getenv ("bootdelaykey2"), retry: 1 }, 93 { str: getenv ("bootstopkey"), retry: 0 }, 94 { str: getenv ("bootstopkey2"), retry: 0 }, 95 }; 96 97 char presskey [MAX_DELAY_STOP_STR]; 98 u_int presskey_len = 0; 99 u_int presskey_max = 0; 100 u_int i; 101 102 #ifndef CONFIG_ZERO_BOOTDELAY_CHECK 103 if (bootdelay == 0) 104 return 0; 105 #endif 106 107 # ifdef CONFIG_AUTOBOOT_PROMPT 108 printf(CONFIG_AUTOBOOT_PROMPT); 109 # endif 110 111 # ifdef CONFIG_AUTOBOOT_DELAY_STR 112 if (delaykey[0].str == NULL) 113 delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR; 114 # endif 115 # ifdef CONFIG_AUTOBOOT_DELAY_STR2 116 if (delaykey[1].str == NULL) 117 delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2; 118 # endif 119 # ifdef CONFIG_AUTOBOOT_STOP_STR 120 if (delaykey[2].str == NULL) 121 delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR; 122 # endif 123 # ifdef CONFIG_AUTOBOOT_STOP_STR2 124 if (delaykey[3].str == NULL) 125 delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2; 126 # endif 127 128 for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { 129 delaykey[i].len = delaykey[i].str == NULL ? 130 0 : strlen (delaykey[i].str); 131 delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ? 132 MAX_DELAY_STOP_STR : delaykey[i].len; 133 134 presskey_max = presskey_max > delaykey[i].len ? 135 presskey_max : delaykey[i].len; 136 137 # if DEBUG_BOOTKEYS 138 printf("%s key:<%s>\n", 139 delaykey[i].retry ? "delay" : "stop", 140 delaykey[i].str ? delaykey[i].str : "NULL"); 141 # endif 142 } 143 144 /* In order to keep up with incoming data, check timeout only 145 * when catch up. 146 */ 147 do { 148 if (tstc()) { 149 if (presskey_len < presskey_max) { 150 presskey [presskey_len ++] = getc(); 151 } 152 else { 153 for (i = 0; i < presskey_max - 1; i ++) 154 presskey [i] = presskey [i + 1]; 155 156 presskey [i] = getc(); 157 } 158 } 159 160 for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i ++) { 161 if (delaykey[i].len > 0 && 162 presskey_len >= delaykey[i].len && 163 memcmp (presskey + presskey_len - delaykey[i].len, 164 delaykey[i].str, 165 delaykey[i].len) == 0) { 166 # if DEBUG_BOOTKEYS 167 printf("got %skey\n", 168 delaykey[i].retry ? "delay" : "stop"); 169 # endif 170 171 # ifdef CONFIG_BOOT_RETRY_TIME 172 /* don't retry auto boot */ 173 if (! delaykey[i].retry) 174 retry_time = -1; 175 # endif 176 abort = 1; 177 } 178 } 179 } while (!abort && get_ticks() <= etime); 180 181 # if DEBUG_BOOTKEYS 182 if (!abort) 183 puts("key timeout\n"); 184 # endif 185 186 #ifdef CONFIG_SILENT_CONSOLE 187 if (abort) 188 gd->flags &= ~GD_FLG_SILENT; 189 #endif 190 191 return abort; 192 } 193 194 # else /* !defined(CONFIG_AUTOBOOT_KEYED) */ 195 196 #ifdef CONFIG_MENUKEY 197 static int menukey = 0; 198 #endif 199 200 static int abortboot_normal(int bootdelay) 201 { 202 int abort = 0; 203 unsigned long ts; 204 205 #ifdef CONFIG_MENUPROMPT 206 printf(CONFIG_MENUPROMPT); 207 #else 208 if (bootdelay >= 0) 209 printf("Hit any key to stop autoboot: %2d ", bootdelay); 210 #endif 211 212 #if defined CONFIG_ZERO_BOOTDELAY_CHECK 213 /* 214 * Check if key already pressed 215 * Don't check if bootdelay < 0 216 */ 217 if (bootdelay >= 0) { 218 if (tstc()) { /* we got a key press */ 219 (void) getc(); /* consume input */ 220 puts ("\b\b\b 0"); 221 abort = 1; /* don't auto boot */ 222 } 223 } 224 #endif 225 226 while ((bootdelay > 0) && (!abort)) { 227 --bootdelay; 228 /* delay 1000 ms */ 229 ts = get_timer(0); 230 do { 231 if (tstc()) { /* we got a key press */ 232 abort = 1; /* don't auto boot */ 233 bootdelay = 0; /* no more delay */ 234 # ifdef CONFIG_MENUKEY 235 menukey = getc(); 236 # else 237 (void) getc(); /* consume input */ 238 # endif 239 break; 240 } 241 udelay(10000); 242 } while (!abort && get_timer(ts) < 1000); 243 244 printf("\b\b\b%2d ", bootdelay); 245 } 246 247 putc('\n'); 248 249 #ifdef CONFIG_SILENT_CONSOLE 250 if (abort) 251 gd->flags &= ~GD_FLG_SILENT; 252 #endif 253 254 return abort; 255 } 256 # endif /* CONFIG_AUTOBOOT_KEYED */ 257 258 static int abortboot(int bootdelay) 259 { 260 #ifdef CONFIG_AUTOBOOT_KEYED 261 return abortboot_keyed(bootdelay); 262 #else 263 return abortboot_normal(bootdelay); 264 #endif 265 } 266 #endif /* CONFIG_BOOTDELAY */ 267 268 /* 269 * Runs the given boot command securely. Specifically: 270 * - Doesn't run the command with the shell (run_command or parse_string_outer), 271 * since that's a lot of code surface that an attacker might exploit. 272 * Because of this, we don't do any argument parsing--the secure boot command 273 * has to be a full-fledged u-boot command. 274 * - Doesn't check for keypresses before booting, since that could be a 275 * security hole; also disables Ctrl-C. 276 * - Doesn't allow the command to return. 277 * 278 * Upon any failures, this function will drop into an infinite loop after 279 * printing the error message to console. 280 */ 281 282 #if defined(CONFIG_BOOTDELAY) && defined(CONFIG_OF_CONTROL) 283 static void secure_boot_cmd(char *cmd) 284 { 285 cmd_tbl_t *cmdtp; 286 int rc; 287 288 if (!cmd) { 289 printf("## Error: Secure boot command not specified\n"); 290 goto err; 291 } 292 293 /* Disable Ctrl-C just in case some command is used that checks it. */ 294 disable_ctrlc(1); 295 296 /* Find the command directly. */ 297 cmdtp = find_cmd(cmd); 298 if (!cmdtp) { 299 printf("## Error: \"%s\" not defined\n", cmd); 300 goto err; 301 } 302 303 /* Run the command, forcing no flags and faking argc and argv. */ 304 rc = (cmdtp->cmd)(cmdtp, 0, 1, &cmd); 305 306 /* Shouldn't ever return from boot command. */ 307 printf("## Error: \"%s\" returned (code %d)\n", cmd, rc); 308 309 err: 310 /* 311 * Not a whole lot to do here. Rebooting won't help much, since we'll 312 * just end up right back here. Just loop. 313 */ 314 hang(); 315 } 316 317 static void process_fdt_options(const void *blob) 318 { 319 ulong addr; 320 321 /* Add an env variable to point to a kernel payload, if available */ 322 addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0); 323 if (addr) 324 setenv_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr)); 325 326 /* Add an env variable to point to a root disk, if available */ 327 addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0); 328 if (addr) 329 setenv_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr)); 330 } 331 #endif /* CONFIG_OF_CONTROL */ 332 333 #ifdef CONFIG_BOOTDELAY 334 static void process_boot_delay(void) 335 { 336 #ifdef CONFIG_OF_CONTROL 337 char *env; 338 #endif 339 char *s; 340 int bootdelay; 341 #ifdef CONFIG_BOOTCOUNT_LIMIT 342 unsigned long bootcount = 0; 343 unsigned long bootlimit = 0; 344 #endif /* CONFIG_BOOTCOUNT_LIMIT */ 345 346 #ifdef CONFIG_BOOTCOUNT_LIMIT 347 bootcount = bootcount_load(); 348 bootcount++; 349 bootcount_store (bootcount); 350 setenv_ulong("bootcount", bootcount); 351 bootlimit = getenv_ulong("bootlimit", 10, 0); 352 #endif /* CONFIG_BOOTCOUNT_LIMIT */ 353 354 s = getenv ("bootdelay"); 355 bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY; 356 357 debug ("### main_loop entered: bootdelay=%d\n\n", bootdelay); 358 359 #if defined(CONFIG_MENU_SHOW) 360 bootdelay = menu_show(bootdelay); 361 #endif 362 # ifdef CONFIG_BOOT_RETRY_TIME 363 init_cmd_timeout (); 364 # endif /* CONFIG_BOOT_RETRY_TIME */ 365 366 #ifdef CONFIG_POST 367 if (gd->flags & GD_FLG_POSTFAIL) { 368 s = getenv("failbootcmd"); 369 } 370 else 371 #endif /* CONFIG_POST */ 372 #ifdef CONFIG_BOOTCOUNT_LIMIT 373 if (bootlimit && (bootcount > bootlimit)) { 374 printf ("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n", 375 (unsigned)bootlimit); 376 s = getenv ("altbootcmd"); 377 } 378 else 379 #endif /* CONFIG_BOOTCOUNT_LIMIT */ 380 s = getenv ("bootcmd"); 381 #ifdef CONFIG_OF_CONTROL 382 /* Allow the fdt to override the boot command */ 383 env = fdtdec_get_config_string(gd->fdt_blob, "bootcmd"); 384 if (env) 385 s = env; 386 387 process_fdt_options(gd->fdt_blob); 388 389 /* 390 * If the bootsecure option was chosen, use secure_boot_cmd(). 391 * Always use 'env' in this case, since bootsecure requres that the 392 * bootcmd was specified in the FDT too. 393 */ 394 if (fdtdec_get_config_int(gd->fdt_blob, "bootsecure", 0)) 395 secure_boot_cmd(env); 396 397 #endif /* CONFIG_OF_CONTROL */ 398 399 debug ("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>"); 400 401 if (bootdelay != -1 && s && !abortboot(bootdelay)) { 402 #ifdef CONFIG_AUTOBOOT_KEYED 403 int prev = disable_ctrlc(1); /* disable Control C checking */ 404 #endif 405 406 run_command_list(s, -1, 0); 407 408 #ifdef CONFIG_AUTOBOOT_KEYED 409 disable_ctrlc(prev); /* restore Control C checking */ 410 #endif 411 } 412 413 #ifdef CONFIG_MENUKEY 414 if (menukey == CONFIG_MENUKEY) { 415 s = getenv("menucmd"); 416 if (s) 417 run_command_list(s, -1, 0); 418 } 419 #endif /* CONFIG_MENUKEY */ 420 } 421 #endif /* CONFIG_BOOTDELAY */ 422 423 void main_loop(void) 424 { 425 #ifndef CONFIG_SYS_HUSH_PARSER 426 static char lastcommand[CONFIG_SYS_CBSIZE] = { 0, }; 427 int len; 428 int rc = 1; 429 int flag; 430 #endif 431 #ifdef CONFIG_PREBOOT 432 char *p; 433 #endif 434 435 bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop"); 436 437 #ifdef CONFIG_MODEM_SUPPORT 438 debug("DEBUG: main_loop: do_mdm_init=%d\n", do_mdm_init); 439 if (do_mdm_init) { 440 char *str = strdup(getenv("mdm_cmd")); 441 setenv("preboot", str); /* set or delete definition */ 442 if (str != NULL) 443 free(str); 444 mdm_init(); /* wait for modem connection */ 445 } 446 #endif /* CONFIG_MODEM_SUPPORT */ 447 448 #ifdef CONFIG_VERSION_VARIABLE 449 { 450 setenv("ver", version_string); /* set version variable */ 451 } 452 #endif /* CONFIG_VERSION_VARIABLE */ 453 454 #ifdef CONFIG_SYS_HUSH_PARSER 455 u_boot_hush_start(); 456 #endif 457 458 #if defined(CONFIG_HUSH_INIT_VAR) 459 hush_init_var(); 460 #endif 461 462 #ifdef CONFIG_PREBOOT 463 p = getenv("preboot"); 464 if (p != NULL) { 465 # ifdef CONFIG_AUTOBOOT_KEYED 466 int prev = disable_ctrlc(1); /* disable Control C checking */ 467 # endif 468 469 run_command_list(p, -1, 0); 470 471 # ifdef CONFIG_AUTOBOOT_KEYED 472 disable_ctrlc(prev); /* restore Control C checking */ 473 # endif 474 } 475 #endif /* CONFIG_PREBOOT */ 476 477 #if defined(CONFIG_UPDATE_TFTP) 478 update_tftp(0UL); 479 #endif /* CONFIG_UPDATE_TFTP */ 480 481 #ifdef CONFIG_BOOTDELAY 482 process_boot_delay(); 483 #endif 484 /* 485 * Main Loop for Monitor Command Processing 486 */ 487 #ifdef CONFIG_SYS_HUSH_PARSER 488 parse_file_outer(); 489 /* This point is never reached */ 490 for (;;); 491 #else 492 for (;;) { 493 #ifdef CONFIG_BOOT_RETRY_TIME 494 if (rc >= 0) { 495 /* Saw enough of a valid command to 496 * restart the timeout. 497 */ 498 reset_cmd_timeout(); 499 } 500 #endif 501 len = readline (CONFIG_SYS_PROMPT); 502 503 flag = 0; /* assume no special flags for now */ 504 if (len > 0) 505 strcpy (lastcommand, console_buffer); 506 else if (len == 0) 507 flag |= CMD_FLAG_REPEAT; 508 #ifdef CONFIG_BOOT_RETRY_TIME 509 else if (len == -2) { 510 /* -2 means timed out, retry autoboot 511 */ 512 puts ("\nTimed out waiting for command\n"); 513 # ifdef CONFIG_RESET_TO_RETRY 514 /* Reinit board to run initialization code again */ 515 do_reset (NULL, 0, 0, NULL); 516 # else 517 return; /* retry autoboot */ 518 # endif 519 } 520 #endif 521 522 if (len == -1) 523 puts ("<INTERRUPT>\n"); 524 else 525 rc = run_command(lastcommand, flag); 526 527 if (rc <= 0) { 528 /* invalid command or not repeatable, forget it */ 529 lastcommand[0] = 0; 530 } 531 } 532 #endif /*CONFIG_SYS_HUSH_PARSER*/ 533 } 534 535 #ifdef CONFIG_BOOT_RETRY_TIME 536 /*************************************************************************** 537 * initialize command line timeout 538 */ 539 void init_cmd_timeout(void) 540 { 541 char *s = getenv ("bootretry"); 542 543 if (s != NULL) 544 retry_time = (int)simple_strtol(s, NULL, 10); 545 else 546 retry_time = CONFIG_BOOT_RETRY_TIME; 547 548 if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN) 549 retry_time = CONFIG_BOOT_RETRY_MIN; 550 } 551 552 /*************************************************************************** 553 * reset command line timeout to retry_time seconds 554 */ 555 void reset_cmd_timeout(void) 556 { 557 endtime = endtick(retry_time); 558 } 559 #endif 560 561 #ifdef CONFIG_CMDLINE_EDITING 562 563 /* 564 * cmdline-editing related codes from vivi. 565 * Author: Janghoon Lyu <nandy@mizi.com> 566 */ 567 568 #define putnstr(str,n) do { \ 569 printf ("%.*s", (int)n, str); \ 570 } while (0) 571 572 #define CTL_CH(c) ((c) - 'a' + 1) 573 #define CTL_BACKSPACE ('\b') 574 #define DEL ((char)255) 575 #define DEL7 ((char)127) 576 #define CREAD_HIST_CHAR ('!') 577 578 #define getcmd_putch(ch) putc(ch) 579 #define getcmd_getch() getc() 580 #define getcmd_cbeep() getcmd_putch('\a') 581 582 #define HIST_MAX 20 583 #define HIST_SIZE CONFIG_SYS_CBSIZE 584 585 static int hist_max; 586 static int hist_add_idx; 587 static int hist_cur = -1; 588 static unsigned hist_num; 589 590 static char *hist_list[HIST_MAX]; 591 static char hist_lines[HIST_MAX][HIST_SIZE + 1]; /* Save room for NULL */ 592 593 #define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1) 594 595 static void hist_init(void) 596 { 597 int i; 598 599 hist_max = 0; 600 hist_add_idx = 0; 601 hist_cur = -1; 602 hist_num = 0; 603 604 for (i = 0; i < HIST_MAX; i++) { 605 hist_list[i] = hist_lines[i]; 606 hist_list[i][0] = '\0'; 607 } 608 } 609 610 static void cread_add_to_hist(char *line) 611 { 612 strcpy(hist_list[hist_add_idx], line); 613 614 if (++hist_add_idx >= HIST_MAX) 615 hist_add_idx = 0; 616 617 if (hist_add_idx > hist_max) 618 hist_max = hist_add_idx; 619 620 hist_num++; 621 } 622 623 static char* hist_prev(void) 624 { 625 char *ret; 626 int old_cur; 627 628 if (hist_cur < 0) 629 return NULL; 630 631 old_cur = hist_cur; 632 if (--hist_cur < 0) 633 hist_cur = hist_max; 634 635 if (hist_cur == hist_add_idx) { 636 hist_cur = old_cur; 637 ret = NULL; 638 } else 639 ret = hist_list[hist_cur]; 640 641 return (ret); 642 } 643 644 static char* hist_next(void) 645 { 646 char *ret; 647 648 if (hist_cur < 0) 649 return NULL; 650 651 if (hist_cur == hist_add_idx) 652 return NULL; 653 654 if (++hist_cur > hist_max) 655 hist_cur = 0; 656 657 if (hist_cur == hist_add_idx) { 658 ret = ""; 659 } else 660 ret = hist_list[hist_cur]; 661 662 return (ret); 663 } 664 665 #ifndef CONFIG_CMDLINE_EDITING 666 static void cread_print_hist_list(void) 667 { 668 int i; 669 unsigned long n; 670 671 n = hist_num - hist_max; 672 673 i = hist_add_idx + 1; 674 while (1) { 675 if (i > hist_max) 676 i = 0; 677 if (i == hist_add_idx) 678 break; 679 printf("%s\n", hist_list[i]); 680 n++; 681 i++; 682 } 683 } 684 #endif /* CONFIG_CMDLINE_EDITING */ 685 686 #define BEGINNING_OF_LINE() { \ 687 while (num) { \ 688 getcmd_putch(CTL_BACKSPACE); \ 689 num--; \ 690 } \ 691 } 692 693 #define ERASE_TO_EOL() { \ 694 if (num < eol_num) { \ 695 printf("%*s", (int)(eol_num - num), ""); \ 696 do { \ 697 getcmd_putch(CTL_BACKSPACE); \ 698 } while (--eol_num > num); \ 699 } \ 700 } 701 702 #define REFRESH_TO_EOL() { \ 703 if (num < eol_num) { \ 704 wlen = eol_num - num; \ 705 putnstr(buf + num, wlen); \ 706 num = eol_num; \ 707 } \ 708 } 709 710 static void cread_add_char(char ichar, int insert, unsigned long *num, 711 unsigned long *eol_num, char *buf, unsigned long len) 712 { 713 unsigned long wlen; 714 715 /* room ??? */ 716 if (insert || *num == *eol_num) { 717 if (*eol_num > len - 1) { 718 getcmd_cbeep(); 719 return; 720 } 721 (*eol_num)++; 722 } 723 724 if (insert) { 725 wlen = *eol_num - *num; 726 if (wlen > 1) { 727 memmove(&buf[*num+1], &buf[*num], wlen-1); 728 } 729 730 buf[*num] = ichar; 731 putnstr(buf + *num, wlen); 732 (*num)++; 733 while (--wlen) { 734 getcmd_putch(CTL_BACKSPACE); 735 } 736 } else { 737 /* echo the character */ 738 wlen = 1; 739 buf[*num] = ichar; 740 putnstr(buf + *num, wlen); 741 (*num)++; 742 } 743 } 744 745 static void cread_add_str(char *str, int strsize, int insert, unsigned long *num, 746 unsigned long *eol_num, char *buf, unsigned long len) 747 { 748 while (strsize--) { 749 cread_add_char(*str, insert, num, eol_num, buf, len); 750 str++; 751 } 752 } 753 754 static int cread_line(const char *const prompt, char *buf, unsigned int *len, 755 int timeout) 756 { 757 unsigned long num = 0; 758 unsigned long eol_num = 0; 759 unsigned long wlen; 760 char ichar; 761 int insert = 1; 762 int esc_len = 0; 763 char esc_save[8]; 764 int init_len = strlen(buf); 765 int first = 1; 766 767 if (init_len) 768 cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len); 769 770 while (1) { 771 #ifdef CONFIG_BOOT_RETRY_TIME 772 while (!tstc()) { /* while no incoming data */ 773 if (retry_time >= 0 && get_ticks() > endtime) 774 return (-2); /* timed out */ 775 WATCHDOG_RESET(); 776 } 777 #endif 778 if (first && timeout) { 779 uint64_t etime = endtick(timeout); 780 781 while (!tstc()) { /* while no incoming data */ 782 if (get_ticks() >= etime) 783 return -2; /* timed out */ 784 WATCHDOG_RESET(); 785 } 786 first = 0; 787 } 788 789 ichar = getcmd_getch(); 790 791 if ((ichar == '\n') || (ichar == '\r')) { 792 putc('\n'); 793 break; 794 } 795 796 /* 797 * handle standard linux xterm esc sequences for arrow key, etc. 798 */ 799 if (esc_len != 0) { 800 if (esc_len == 1) { 801 if (ichar == '[') { 802 esc_save[esc_len] = ichar; 803 esc_len = 2; 804 } else { 805 cread_add_str(esc_save, esc_len, insert, 806 &num, &eol_num, buf, *len); 807 esc_len = 0; 808 } 809 continue; 810 } 811 812 switch (ichar) { 813 814 case 'D': /* <- key */ 815 ichar = CTL_CH('b'); 816 esc_len = 0; 817 break; 818 case 'C': /* -> key */ 819 ichar = CTL_CH('f'); 820 esc_len = 0; 821 break; /* pass off to ^F handler */ 822 case 'H': /* Home key */ 823 ichar = CTL_CH('a'); 824 esc_len = 0; 825 break; /* pass off to ^A handler */ 826 case 'A': /* up arrow */ 827 ichar = CTL_CH('p'); 828 esc_len = 0; 829 break; /* pass off to ^P handler */ 830 case 'B': /* down arrow */ 831 ichar = CTL_CH('n'); 832 esc_len = 0; 833 break; /* pass off to ^N handler */ 834 default: 835 esc_save[esc_len++] = ichar; 836 cread_add_str(esc_save, esc_len, insert, 837 &num, &eol_num, buf, *len); 838 esc_len = 0; 839 continue; 840 } 841 } 842 843 switch (ichar) { 844 case 0x1b: 845 if (esc_len == 0) { 846 esc_save[esc_len] = ichar; 847 esc_len = 1; 848 } else { 849 puts("impossible condition #876\n"); 850 esc_len = 0; 851 } 852 break; 853 854 case CTL_CH('a'): 855 BEGINNING_OF_LINE(); 856 break; 857 case CTL_CH('c'): /* ^C - break */ 858 *buf = '\0'; /* discard input */ 859 return (-1); 860 case CTL_CH('f'): 861 if (num < eol_num) { 862 getcmd_putch(buf[num]); 863 num++; 864 } 865 break; 866 case CTL_CH('b'): 867 if (num) { 868 getcmd_putch(CTL_BACKSPACE); 869 num--; 870 } 871 break; 872 case CTL_CH('d'): 873 if (num < eol_num) { 874 wlen = eol_num - num - 1; 875 if (wlen) { 876 memmove(&buf[num], &buf[num+1], wlen); 877 putnstr(buf + num, wlen); 878 } 879 880 getcmd_putch(' '); 881 do { 882 getcmd_putch(CTL_BACKSPACE); 883 } while (wlen--); 884 eol_num--; 885 } 886 break; 887 case CTL_CH('k'): 888 ERASE_TO_EOL(); 889 break; 890 case CTL_CH('e'): 891 REFRESH_TO_EOL(); 892 break; 893 case CTL_CH('o'): 894 insert = !insert; 895 break; 896 case CTL_CH('x'): 897 case CTL_CH('u'): 898 BEGINNING_OF_LINE(); 899 ERASE_TO_EOL(); 900 break; 901 case DEL: 902 case DEL7: 903 case 8: 904 if (num) { 905 wlen = eol_num - num; 906 num--; 907 memmove(&buf[num], &buf[num+1], wlen); 908 getcmd_putch(CTL_BACKSPACE); 909 putnstr(buf + num, wlen); 910 getcmd_putch(' '); 911 do { 912 getcmd_putch(CTL_BACKSPACE); 913 } while (wlen--); 914 eol_num--; 915 } 916 break; 917 case CTL_CH('p'): 918 case CTL_CH('n'): 919 { 920 char * hline; 921 922 esc_len = 0; 923 924 if (ichar == CTL_CH('p')) 925 hline = hist_prev(); 926 else 927 hline = hist_next(); 928 929 if (!hline) { 930 getcmd_cbeep(); 931 continue; 932 } 933 934 /* nuke the current line */ 935 /* first, go home */ 936 BEGINNING_OF_LINE(); 937 938 /* erase to end of line */ 939 ERASE_TO_EOL(); 940 941 /* copy new line into place and display */ 942 strcpy(buf, hline); 943 eol_num = strlen(buf); 944 REFRESH_TO_EOL(); 945 continue; 946 } 947 #ifdef CONFIG_AUTO_COMPLETE 948 case '\t': { 949 int num2, col; 950 951 /* do not autocomplete when in the middle */ 952 if (num < eol_num) { 953 getcmd_cbeep(); 954 break; 955 } 956 957 buf[num] = '\0'; 958 col = strlen(prompt) + eol_num; 959 num2 = num; 960 if (cmd_auto_complete(prompt, buf, &num2, &col)) { 961 col = num2 - num; 962 num += col; 963 eol_num += col; 964 } 965 break; 966 } 967 #endif 968 default: 969 cread_add_char(ichar, insert, &num, &eol_num, buf, *len); 970 break; 971 } 972 } 973 *len = eol_num; 974 buf[eol_num] = '\0'; /* lose the newline */ 975 976 if (buf[0] && buf[0] != CREAD_HIST_CHAR) 977 cread_add_to_hist(buf); 978 hist_cur = hist_add_idx; 979 980 return 0; 981 } 982 983 #endif /* CONFIG_CMDLINE_EDITING */ 984 985 /****************************************************************************/ 986 987 /* 988 * Prompt for input and read a line. 989 * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0, 990 * time out when time goes past endtime (timebase time in ticks). 991 * Return: number of read characters 992 * -1 if break 993 * -2 if timed out 994 */ 995 int readline (const char *const prompt) 996 { 997 /* 998 * If console_buffer isn't 0-length the user will be prompted to modify 999 * it instead of entering it from scratch as desired. 1000 */ 1001 console_buffer[0] = '\0'; 1002 1003 return readline_into_buffer(prompt, console_buffer, 0); 1004 } 1005 1006 1007 int readline_into_buffer(const char *const prompt, char *buffer, int timeout) 1008 { 1009 char *p = buffer; 1010 #ifdef CONFIG_CMDLINE_EDITING 1011 unsigned int len = CONFIG_SYS_CBSIZE; 1012 int rc; 1013 static int initted = 0; 1014 1015 /* 1016 * History uses a global array which is not 1017 * writable until after relocation to RAM. 1018 * Revert to non-history version if still 1019 * running from flash. 1020 */ 1021 if (gd->flags & GD_FLG_RELOC) { 1022 if (!initted) { 1023 hist_init(); 1024 initted = 1; 1025 } 1026 1027 if (prompt) 1028 puts (prompt); 1029 1030 rc = cread_line(prompt, p, &len, timeout); 1031 return rc < 0 ? rc : len; 1032 1033 } else { 1034 #endif /* CONFIG_CMDLINE_EDITING */ 1035 char * p_buf = p; 1036 int n = 0; /* buffer index */ 1037 int plen = 0; /* prompt length */ 1038 int col; /* output column cnt */ 1039 char c; 1040 1041 /* print prompt */ 1042 if (prompt) { 1043 plen = strlen (prompt); 1044 puts (prompt); 1045 } 1046 col = plen; 1047 1048 for (;;) { 1049 #ifdef CONFIG_BOOT_RETRY_TIME 1050 while (!tstc()) { /* while no incoming data */ 1051 if (retry_time >= 0 && get_ticks() > endtime) 1052 return (-2); /* timed out */ 1053 WATCHDOG_RESET(); 1054 } 1055 #endif 1056 WATCHDOG_RESET(); /* Trigger watchdog, if needed */ 1057 1058 #ifdef CONFIG_SHOW_ACTIVITY 1059 while (!tstc()) { 1060 show_activity(0); 1061 WATCHDOG_RESET(); 1062 } 1063 #endif 1064 c = getc(); 1065 1066 /* 1067 * Special character handling 1068 */ 1069 switch (c) { 1070 case '\r': /* Enter */ 1071 case '\n': 1072 *p = '\0'; 1073 puts ("\r\n"); 1074 return p - p_buf; 1075 1076 case '\0': /* nul */ 1077 continue; 1078 1079 case 0x03: /* ^C - break */ 1080 p_buf[0] = '\0'; /* discard input */ 1081 return -1; 1082 1083 case 0x15: /* ^U - erase line */ 1084 while (col > plen) { 1085 puts (erase_seq); 1086 --col; 1087 } 1088 p = p_buf; 1089 n = 0; 1090 continue; 1091 1092 case 0x17: /* ^W - erase word */ 1093 p=delete_char(p_buf, p, &col, &n, plen); 1094 while ((n > 0) && (*p != ' ')) { 1095 p=delete_char(p_buf, p, &col, &n, plen); 1096 } 1097 continue; 1098 1099 case 0x08: /* ^H - backspace */ 1100 case 0x7F: /* DEL - backspace */ 1101 p=delete_char(p_buf, p, &col, &n, plen); 1102 continue; 1103 1104 default: 1105 /* 1106 * Must be a normal character then 1107 */ 1108 if (n < CONFIG_SYS_CBSIZE-2) { 1109 if (c == '\t') { /* expand TABs */ 1110 #ifdef CONFIG_AUTO_COMPLETE 1111 /* if auto completion triggered just continue */ 1112 *p = '\0'; 1113 if (cmd_auto_complete(prompt, console_buffer, &n, &col)) { 1114 p = p_buf + n; /* reset */ 1115 continue; 1116 } 1117 #endif 1118 puts (tab_seq+(col&07)); 1119 col += 8 - (col&07); 1120 } else { 1121 char buf[2]; 1122 1123 /* 1124 * Echo input using puts() to force an 1125 * LCD flush if we are using an LCD 1126 */ 1127 ++col; 1128 buf[0] = c; 1129 buf[1] = '\0'; 1130 puts(buf); 1131 } 1132 *p++ = c; 1133 ++n; 1134 } else { /* Buffer full */ 1135 putc ('\a'); 1136 } 1137 } 1138 } 1139 #ifdef CONFIG_CMDLINE_EDITING 1140 } 1141 #endif 1142 } 1143 1144 /****************************************************************************/ 1145 1146 static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen) 1147 { 1148 char *s; 1149 1150 if (*np == 0) { 1151 return (p); 1152 } 1153 1154 if (*(--p) == '\t') { /* will retype the whole line */ 1155 while (*colp > plen) { 1156 puts (erase_seq); 1157 (*colp)--; 1158 } 1159 for (s=buffer; s<p; ++s) { 1160 if (*s == '\t') { 1161 puts (tab_seq+((*colp) & 07)); 1162 *colp += 8 - ((*colp) & 07); 1163 } else { 1164 ++(*colp); 1165 putc (*s); 1166 } 1167 } 1168 } else { 1169 puts (erase_seq); 1170 (*colp)--; 1171 } 1172 (*np)--; 1173 return (p); 1174 } 1175 1176 /****************************************************************************/ 1177 1178 int parse_line (char *line, char *argv[]) 1179 { 1180 int nargs = 0; 1181 1182 #ifdef DEBUG_PARSER 1183 printf ("parse_line: \"%s\"\n", line); 1184 #endif 1185 while (nargs < CONFIG_SYS_MAXARGS) { 1186 1187 /* skip any white space */ 1188 while (isblank(*line)) 1189 ++line; 1190 1191 if (*line == '\0') { /* end of line, no more args */ 1192 argv[nargs] = NULL; 1193 #ifdef DEBUG_PARSER 1194 printf ("parse_line: nargs=%d\n", nargs); 1195 #endif 1196 return (nargs); 1197 } 1198 1199 argv[nargs++] = line; /* begin of argument string */ 1200 1201 /* find end of string */ 1202 while (*line && !isblank(*line)) 1203 ++line; 1204 1205 if (*line == '\0') { /* end of line, no more args */ 1206 argv[nargs] = NULL; 1207 #ifdef DEBUG_PARSER 1208 printf ("parse_line: nargs=%d\n", nargs); 1209 #endif 1210 return (nargs); 1211 } 1212 1213 *line++ = '\0'; /* terminate current arg */ 1214 } 1215 1216 printf ("** Too many args (max. %d) **\n", CONFIG_SYS_MAXARGS); 1217 1218 #ifdef DEBUG_PARSER 1219 printf ("parse_line: nargs=%d\n", nargs); 1220 #endif 1221 return (nargs); 1222 } 1223 1224 /****************************************************************************/ 1225 1226 #ifndef CONFIG_SYS_HUSH_PARSER 1227 static void process_macros (const char *input, char *output) 1228 { 1229 char c, prev; 1230 const char *varname_start = NULL; 1231 int inputcnt = strlen (input); 1232 int outputcnt = CONFIG_SYS_CBSIZE; 1233 int state = 0; /* 0 = waiting for '$' */ 1234 1235 /* 1 = waiting for '(' or '{' */ 1236 /* 2 = waiting for ')' or '}' */ 1237 /* 3 = waiting for ''' */ 1238 #ifdef DEBUG_PARSER 1239 char *output_start = output; 1240 1241 printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen (input), 1242 input); 1243 #endif 1244 1245 prev = '\0'; /* previous character */ 1246 1247 while (inputcnt && outputcnt) { 1248 c = *input++; 1249 inputcnt--; 1250 1251 if (state != 3) { 1252 /* remove one level of escape characters */ 1253 if ((c == '\\') && (prev != '\\')) { 1254 if (inputcnt-- == 0) 1255 break; 1256 prev = c; 1257 c = *input++; 1258 } 1259 } 1260 1261 switch (state) { 1262 case 0: /* Waiting for (unescaped) $ */ 1263 if ((c == '\'') && (prev != '\\')) { 1264 state = 3; 1265 break; 1266 } 1267 if ((c == '$') && (prev != '\\')) { 1268 state++; 1269 } else { 1270 *(output++) = c; 1271 outputcnt--; 1272 } 1273 break; 1274 case 1: /* Waiting for ( */ 1275 if (c == '(' || c == '{') { 1276 state++; 1277 varname_start = input; 1278 } else { 1279 state = 0; 1280 *(output++) = '$'; 1281 outputcnt--; 1282 1283 if (outputcnt) { 1284 *(output++) = c; 1285 outputcnt--; 1286 } 1287 } 1288 break; 1289 case 2: /* Waiting for ) */ 1290 if (c == ')' || c == '}') { 1291 int i; 1292 char envname[CONFIG_SYS_CBSIZE], *envval; 1293 int envcnt = input - varname_start - 1; /* Varname # of chars */ 1294 1295 /* Get the varname */ 1296 for (i = 0; i < envcnt; i++) { 1297 envname[i] = varname_start[i]; 1298 } 1299 envname[i] = 0; 1300 1301 /* Get its value */ 1302 envval = getenv (envname); 1303 1304 /* Copy into the line if it exists */ 1305 if (envval != NULL) 1306 while ((*envval) && outputcnt) { 1307 *(output++) = *(envval++); 1308 outputcnt--; 1309 } 1310 /* Look for another '$' */ 1311 state = 0; 1312 } 1313 break; 1314 case 3: /* Waiting for ' */ 1315 if ((c == '\'') && (prev != '\\')) { 1316 state = 0; 1317 } else { 1318 *(output++) = c; 1319 outputcnt--; 1320 } 1321 break; 1322 } 1323 prev = c; 1324 } 1325 1326 if (outputcnt) 1327 *output = 0; 1328 else 1329 *(output - 1) = 0; 1330 1331 #ifdef DEBUG_PARSER 1332 printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n", 1333 strlen (output_start), output_start); 1334 #endif 1335 } 1336 1337 /**************************************************************************** 1338 * returns: 1339 * 1 - command executed, repeatable 1340 * 0 - command executed but not repeatable, interrupted commands are 1341 * always considered not repeatable 1342 * -1 - not executed (unrecognized, bootd recursion or too many args) 1343 * (If cmd is NULL or "" or longer than CONFIG_SYS_CBSIZE-1 it is 1344 * considered unrecognized) 1345 * 1346 * WARNING: 1347 * 1348 * We must create a temporary copy of the command since the command we get 1349 * may be the result from getenv(), which returns a pointer directly to 1350 * the environment data, which may change magicly when the command we run 1351 * creates or modifies environment variables (like "bootp" does). 1352 */ 1353 static int builtin_run_command(const char *cmd, int flag) 1354 { 1355 char cmdbuf[CONFIG_SYS_CBSIZE]; /* working copy of cmd */ 1356 char *token; /* start of token in cmdbuf */ 1357 char *sep; /* end of token (separator) in cmdbuf */ 1358 char finaltoken[CONFIG_SYS_CBSIZE]; 1359 char *str = cmdbuf; 1360 char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ 1361 int argc, inquotes; 1362 int repeatable = 1; 1363 int rc = 0; 1364 1365 #ifdef DEBUG_PARSER 1366 printf ("[RUN_COMMAND] cmd[%p]=\"", cmd); 1367 puts (cmd ? cmd : "NULL"); /* use puts - string may be loooong */ 1368 puts ("\"\n"); 1369 #endif 1370 1371 clear_ctrlc(); /* forget any previous Control C */ 1372 1373 if (!cmd || !*cmd) { 1374 return -1; /* empty command */ 1375 } 1376 1377 if (strlen(cmd) >= CONFIG_SYS_CBSIZE) { 1378 puts ("## Command too long!\n"); 1379 return -1; 1380 } 1381 1382 strcpy (cmdbuf, cmd); 1383 1384 /* Process separators and check for invalid 1385 * repeatable commands 1386 */ 1387 1388 #ifdef DEBUG_PARSER 1389 printf ("[PROCESS_SEPARATORS] %s\n", cmd); 1390 #endif 1391 while (*str) { 1392 1393 /* 1394 * Find separator, or string end 1395 * Allow simple escape of ';' by writing "\;" 1396 */ 1397 for (inquotes = 0, sep = str; *sep; sep++) { 1398 if ((*sep=='\'') && 1399 (*(sep-1) != '\\')) 1400 inquotes=!inquotes; 1401 1402 if (!inquotes && 1403 (*sep == ';') && /* separator */ 1404 ( sep != str) && /* past string start */ 1405 (*(sep-1) != '\\')) /* and NOT escaped */ 1406 break; 1407 } 1408 1409 /* 1410 * Limit the token to data between separators 1411 */ 1412 token = str; 1413 if (*sep) { 1414 str = sep + 1; /* start of command for next pass */ 1415 *sep = '\0'; 1416 } 1417 else 1418 str = sep; /* no more commands for next pass */ 1419 #ifdef DEBUG_PARSER 1420 printf ("token: \"%s\"\n", token); 1421 #endif 1422 1423 /* find macros in this token and replace them */ 1424 process_macros (token, finaltoken); 1425 1426 /* Extract arguments */ 1427 if ((argc = parse_line (finaltoken, argv)) == 0) { 1428 rc = -1; /* no command at all */ 1429 continue; 1430 } 1431 1432 if (cmd_process(flag, argc, argv, &repeatable, NULL)) 1433 rc = -1; 1434 1435 /* Did the user stop this? */ 1436 if (had_ctrlc ()) 1437 return -1; /* if stopped then not repeatable */ 1438 } 1439 1440 return rc ? rc : repeatable; 1441 } 1442 #endif 1443 1444 /* 1445 * Run a command using the selected parser. 1446 * 1447 * @param cmd Command to run 1448 * @param flag Execution flags (CMD_FLAG_...) 1449 * @return 0 on success, or != 0 on error. 1450 */ 1451 int run_command(const char *cmd, int flag) 1452 { 1453 #ifndef CONFIG_SYS_HUSH_PARSER 1454 /* 1455 * builtin_run_command can return 0 or 1 for success, so clean up 1456 * its result. 1457 */ 1458 if (builtin_run_command(cmd, flag) == -1) 1459 return 1; 1460 1461 return 0; 1462 #else 1463 return parse_string_outer(cmd, 1464 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP); 1465 #endif 1466 } 1467 1468 #ifndef CONFIG_SYS_HUSH_PARSER 1469 /** 1470 * Execute a list of command separated by ; or \n using the built-in parser. 1471 * 1472 * This function cannot take a const char * for the command, since if it 1473 * finds newlines in the string, it replaces them with \0. 1474 * 1475 * @param cmd String containing list of commands 1476 * @param flag Execution flags (CMD_FLAG_...) 1477 * @return 0 on success, or != 0 on error. 1478 */ 1479 static int builtin_run_command_list(char *cmd, int flag) 1480 { 1481 char *line, *next; 1482 int rcode = 0; 1483 1484 /* 1485 * Break into individual lines, and execute each line; terminate on 1486 * error. 1487 */ 1488 line = next = cmd; 1489 while (*next) { 1490 if (*next == '\n') { 1491 *next = '\0'; 1492 /* run only non-empty commands */ 1493 if (*line) { 1494 debug("** exec: \"%s\"\n", line); 1495 if (builtin_run_command(line, 0) < 0) { 1496 rcode = 1; 1497 break; 1498 } 1499 } 1500 line = next + 1; 1501 } 1502 ++next; 1503 } 1504 if (rcode == 0 && *line) 1505 rcode = (builtin_run_command(line, 0) >= 0); 1506 1507 return rcode; 1508 } 1509 #endif 1510 1511 int run_command_list(const char *cmd, int len, int flag) 1512 { 1513 int need_buff = 1; 1514 char *buff = (char *)cmd; /* cast away const */ 1515 int rcode = 0; 1516 1517 if (len == -1) { 1518 len = strlen(cmd); 1519 #ifdef CONFIG_SYS_HUSH_PARSER 1520 /* hush will never change our string */ 1521 need_buff = 0; 1522 #else 1523 /* the built-in parser will change our string if it sees \n */ 1524 need_buff = strchr(cmd, '\n') != NULL; 1525 #endif 1526 } 1527 if (need_buff) { 1528 buff = malloc(len + 1); 1529 if (!buff) 1530 return 1; 1531 memcpy(buff, cmd, len); 1532 buff[len] = '\0'; 1533 } 1534 #ifdef CONFIG_SYS_HUSH_PARSER 1535 rcode = parse_string_outer(buff, FLAG_PARSE_SEMICOLON); 1536 #else 1537 /* 1538 * This function will overwrite any \n it sees with a \0, which 1539 * is why it can't work with a const char *. Here we are making 1540 * using of internal knowledge of this function, to avoid always 1541 * doing a malloc() which is actually required only in a case that 1542 * is pretty rare. 1543 */ 1544 rcode = builtin_run_command_list(buff, flag); 1545 if (need_buff) 1546 free(buff); 1547 #endif 1548 1549 return rcode; 1550 } 1551 1552 /****************************************************************************/ 1553 1554 #if defined(CONFIG_CMD_RUN) 1555 int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) 1556 { 1557 int i; 1558 1559 if (argc < 2) 1560 return CMD_RET_USAGE; 1561 1562 for (i=1; i<argc; ++i) { 1563 char *arg; 1564 1565 if ((arg = getenv (argv[i])) == NULL) { 1566 printf ("## Error: \"%s\" not defined\n", argv[i]); 1567 return 1; 1568 } 1569 1570 if (run_command(arg, flag) != 0) 1571 return 1; 1572 } 1573 return 0; 1574 } 1575 #endif 1576