1 /* 2 * (C) Copyright 2000-2004 3 * DENX Software Engineering 4 * Wolfgang Denk, wd@denx.de 5 * All rights reserved. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation; either version 2 of 10 * the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 20 * MA 02111-1307 USA 21 */ 22 23 #include <errno.h> 24 #include <fcntl.h> 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 #ifndef __WIN32__ 29 #include <netinet/in.h> /* for host / network byte order conversions */ 30 #endif 31 #include <sys/mman.h> 32 #include <sys/stat.h> 33 #include <time.h> 34 #include <unistd.h> 35 36 #if defined(__BEOS__) || defined(__NetBSD__) || defined(__APPLE__) 37 #include <inttypes.h> 38 #endif 39 40 #ifdef __WIN32__ 41 typedef unsigned int __u32; 42 43 #define SWAP_LONG(x) \ 44 ((__u32)( \ 45 (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ 46 (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \ 47 (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \ 48 (((__u32)(x) & (__u32)0xff000000UL) >> 24) )) 49 typedef unsigned char uint8_t; 50 typedef unsigned short uint16_t; 51 typedef unsigned int uint32_t; 52 53 #define ntohl(a) SWAP_LONG(a) 54 #define htonl(a) SWAP_LONG(a) 55 #endif /* __WIN32__ */ 56 57 #ifndef O_BINARY /* should be define'd on __WIN32__ */ 58 #define O_BINARY 0 59 #endif 60 61 #include <image.h> 62 63 extern int errno; 64 65 #ifndef MAP_FAILED 66 #define MAP_FAILED (-1) 67 #endif 68 69 char *cmdname; 70 71 extern unsigned long crc32 (unsigned long crc, const char *buf, unsigned int len); 72 73 typedef struct table_entry { 74 int val; /* as defined in image.h */ 75 char *sname; /* short (input) name */ 76 char *lname; /* long (output) name */ 77 } table_entry_t; 78 79 table_entry_t arch_name[] = { 80 { IH_CPU_INVALID, NULL, "Invalid CPU", }, 81 { IH_CPU_ALPHA, "alpha", "Alpha", }, 82 { IH_CPU_ARM, "arm", "ARM", }, 83 { IH_CPU_I386, "x86", "Intel x86", }, 84 { IH_CPU_IA64, "ia64", "IA64", }, 85 { IH_CPU_M68K, "m68k", "MC68000", }, 86 { IH_CPU_MICROBLAZE, "microblaze", "MicroBlaze", }, 87 { IH_CPU_MIPS, "mips", "MIPS", }, 88 { IH_CPU_MIPS64, "mips64", "MIPS 64 Bit", }, 89 { IH_CPU_NIOS, "nios", "NIOS", }, 90 { IH_CPU_NIOS2, "nios2", "NIOS II", }, 91 { IH_CPU_PPC, "ppc", "PowerPC", }, 92 { IH_CPU_S390, "s390", "IBM S390", }, 93 { IH_CPU_SH, "sh", "SuperH", }, 94 { IH_CPU_SPARC, "sparc", "SPARC", }, 95 { IH_CPU_SPARC64, "sparc64", "SPARC 64 Bit", }, 96 { -1, "", "", }, 97 }; 98 99 table_entry_t os_name[] = { 100 { IH_OS_INVALID, NULL, "Invalid OS", }, 101 { IH_OS_4_4BSD, "4_4bsd", "4_4BSD", }, 102 { IH_OS_ARTOS, "artos", "ARTOS", }, 103 { IH_OS_DELL, "dell", "Dell", }, 104 { IH_OS_ESIX, "esix", "Esix", }, 105 { IH_OS_FREEBSD, "freebsd", "FreeBSD", }, 106 { IH_OS_IRIX, "irix", "Irix", }, 107 { IH_OS_LINUX, "linux", "Linux", }, 108 { IH_OS_LYNXOS, "lynxos", "LynxOS", }, 109 { IH_OS_NCR, "ncr", "NCR", }, 110 { IH_OS_NETBSD, "netbsd", "NetBSD", }, 111 { IH_OS_OPENBSD, "openbsd", "OpenBSD", }, 112 { IH_OS_PSOS, "psos", "pSOS", }, 113 { IH_OS_QNX, "qnx", "QNX", }, 114 { IH_OS_RTEMS, "rtems", "RTEMS", }, 115 { IH_OS_SCO, "sco", "SCO", }, 116 { IH_OS_SOLARIS, "solaris", "Solaris", }, 117 { IH_OS_SVR4, "svr4", "SVR4", }, 118 { IH_OS_U_BOOT, "u-boot", "U-Boot", }, 119 { IH_OS_VXWORKS, "vxworks", "VxWorks", }, 120 { -1, "", "", }, 121 }; 122 123 table_entry_t type_name[] = { 124 { IH_TYPE_INVALID, NULL, "Invalid Image", }, 125 { IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image", }, 126 { IH_TYPE_FIRMWARE, "firmware", "Firmware", }, 127 { IH_TYPE_KERNEL, "kernel", "Kernel Image", }, 128 { IH_TYPE_MULTI, "multi", "Multi-File Image", }, 129 { IH_TYPE_RAMDISK, "ramdisk", "RAMDisk Image", }, 130 { IH_TYPE_SCRIPT, "script", "Script", }, 131 { IH_TYPE_STANDALONE, "standalone", "Standalone Program", }, 132 { -1, "", "", }, 133 }; 134 135 table_entry_t comp_name[] = { 136 { IH_COMP_NONE, "none", "uncompressed", }, 137 { IH_COMP_BZIP2, "bzip2", "bzip2 compressed", }, 138 { IH_COMP_GZIP, "gzip", "gzip compressed", }, 139 { -1, "", "", }, 140 }; 141 142 static void copy_file (int, const char *, int); 143 static void usage (void); 144 static void print_header (image_header_t *); 145 static void print_type (image_header_t *); 146 static char *put_table_entry (table_entry_t *, char *, int); 147 static char *put_arch (int); 148 static char *put_type (int); 149 static char *put_os (int); 150 static char *put_comp (int); 151 static int get_table_entry (table_entry_t *, char *, char *); 152 static int get_arch(char *); 153 static int get_comp(char *); 154 static int get_os (char *); 155 static int get_type(char *); 156 157 158 char *datafile; 159 char *imagefile; 160 161 int dflag = 0; 162 int eflag = 0; 163 int lflag = 0; 164 int vflag = 0; 165 int xflag = 0; 166 int opt_os = IH_OS_LINUX; 167 int opt_arch = IH_CPU_PPC; 168 int opt_type = IH_TYPE_KERNEL; 169 int opt_comp = IH_COMP_GZIP; 170 171 image_header_t header; 172 image_header_t *hdr = &header; 173 174 int 175 main (int argc, char **argv) 176 { 177 int ifd; 178 uint32_t checksum; 179 uint32_t addr; 180 uint32_t ep; 181 struct stat sbuf; 182 unsigned char *ptr; 183 char *name = ""; 184 185 cmdname = *argv; 186 187 addr = ep = 0; 188 189 while (--argc > 0 && **++argv == '-') { 190 while (*++*argv) { 191 switch (**argv) { 192 case 'l': 193 lflag = 1; 194 break; 195 case 'A': 196 if ((--argc <= 0) || 197 (opt_arch = get_arch(*++argv)) < 0) 198 usage (); 199 goto NXTARG; 200 case 'C': 201 if ((--argc <= 0) || 202 (opt_comp = get_comp(*++argv)) < 0) 203 usage (); 204 goto NXTARG; 205 case 'O': 206 if ((--argc <= 0) || 207 (opt_os = get_os(*++argv)) < 0) 208 usage (); 209 goto NXTARG; 210 case 'T': 211 if ((--argc <= 0) || 212 (opt_type = get_type(*++argv)) < 0) 213 usage (); 214 goto NXTARG; 215 216 case 'a': 217 if (--argc <= 0) 218 usage (); 219 addr = strtoul (*++argv, (char **)&ptr, 16); 220 if (*ptr) { 221 fprintf (stderr, 222 "%s: invalid load address %s\n", 223 cmdname, *argv); 224 exit (EXIT_FAILURE); 225 } 226 goto NXTARG; 227 case 'd': 228 if (--argc <= 0) 229 usage (); 230 datafile = *++argv; 231 dflag = 1; 232 goto NXTARG; 233 case 'e': 234 if (--argc <= 0) 235 usage (); 236 ep = strtoul (*++argv, (char **)&ptr, 16); 237 if (*ptr) { 238 fprintf (stderr, 239 "%s: invalid entry point %s\n", 240 cmdname, *argv); 241 exit (EXIT_FAILURE); 242 } 243 eflag = 1; 244 goto NXTARG; 245 case 'n': 246 if (--argc <= 0) 247 usage (); 248 name = *++argv; 249 goto NXTARG; 250 case 'v': 251 vflag++; 252 break; 253 case 'x': 254 xflag++; 255 break; 256 default: 257 usage (); 258 } 259 } 260 NXTARG: ; 261 } 262 263 if ((argc != 1) || ((lflag ^ dflag) == 0)) 264 usage(); 265 266 if (!eflag) { 267 ep = addr; 268 /* If XIP, entry point must be after the U-Boot header */ 269 if (xflag) 270 ep += sizeof(image_header_t); 271 } 272 273 /* 274 * If XIP, ensure the entry point is equal to the load address plus 275 * the size of the U-Boot header. 276 */ 277 if (xflag) { 278 if (ep != addr + sizeof(image_header_t)) { 279 fprintf (stderr, "%s: For XIP, the entry point must be the load addr + %lu\n", 280 cmdname, 281 (unsigned long)sizeof(image_header_t)); 282 exit (EXIT_FAILURE); 283 } 284 } 285 286 imagefile = *argv; 287 288 if (lflag) { 289 ifd = open(imagefile, O_RDONLY|O_BINARY); 290 } else { 291 ifd = open(imagefile, O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666); 292 } 293 294 if (ifd < 0) { 295 fprintf (stderr, "%s: Can't open %s: %s\n", 296 cmdname, imagefile, strerror(errno)); 297 exit (EXIT_FAILURE); 298 } 299 300 if (lflag) { 301 int len; 302 char *data; 303 /* 304 * list header information of existing image 305 */ 306 if (fstat(ifd, &sbuf) < 0) { 307 fprintf (stderr, "%s: Can't stat %s: %s\n", 308 cmdname, imagefile, strerror(errno)); 309 exit (EXIT_FAILURE); 310 } 311 312 if ((unsigned)sbuf.st_size < sizeof(image_header_t)) { 313 fprintf (stderr, 314 "%s: Bad size: \"%s\" is no valid image\n", 315 cmdname, imagefile); 316 exit (EXIT_FAILURE); 317 } 318 319 ptr = (unsigned char *)mmap(0, sbuf.st_size, 320 PROT_READ, MAP_SHARED, ifd, 0); 321 if ((caddr_t)ptr == (caddr_t)-1) { 322 fprintf (stderr, "%s: Can't read %s: %s\n", 323 cmdname, imagefile, strerror(errno)); 324 exit (EXIT_FAILURE); 325 } 326 327 /* 328 * create copy of header so that we can blank out the 329 * checksum field for checking - this can't be done 330 * on the PROT_READ mapped data. 331 */ 332 memcpy (hdr, ptr, sizeof(image_header_t)); 333 334 if (ntohl(hdr->ih_magic) != IH_MAGIC) { 335 fprintf (stderr, 336 "%s: Bad Magic Number: \"%s\" is no valid image\n", 337 cmdname, imagefile); 338 exit (EXIT_FAILURE); 339 } 340 341 data = (char *)hdr; 342 len = sizeof(image_header_t); 343 344 checksum = ntohl(hdr->ih_hcrc); 345 hdr->ih_hcrc = htonl(0); /* clear for re-calculation */ 346 347 if (crc32 (0, data, len) != checksum) { 348 fprintf (stderr, 349 "*** Warning: \"%s\" has bad header checksum!\n", 350 imagefile); 351 } 352 353 data = (char *)(ptr + sizeof(image_header_t)); 354 len = sbuf.st_size - sizeof(image_header_t) ; 355 356 if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) { 357 fprintf (stderr, 358 "*** Warning: \"%s\" has corrupted data!\n", 359 imagefile); 360 } 361 362 /* for multi-file images we need the data part, too */ 363 print_header ((image_header_t *)ptr); 364 365 (void) munmap((void *)ptr, sbuf.st_size); 366 (void) close (ifd); 367 368 exit (EXIT_SUCCESS); 369 } 370 371 /* 372 * Must be -w then: 373 * 374 * write dummy header, to be fixed later 375 */ 376 memset (hdr, 0, sizeof(image_header_t)); 377 378 if (write(ifd, hdr, sizeof(image_header_t)) != sizeof(image_header_t)) { 379 fprintf (stderr, "%s: Write error on %s: %s\n", 380 cmdname, imagefile, strerror(errno)); 381 exit (EXIT_FAILURE); 382 } 383 384 if (opt_type == IH_TYPE_MULTI || opt_type == IH_TYPE_SCRIPT) { 385 char *file = datafile; 386 unsigned long size; 387 388 for (;;) { 389 char *sep = NULL; 390 391 if (file) { 392 if ((sep = strchr(file, ':')) != NULL) { 393 *sep = '\0'; 394 } 395 396 if (stat (file, &sbuf) < 0) { 397 fprintf (stderr, "%s: Can't stat %s: %s\n", 398 cmdname, file, strerror(errno)); 399 exit (EXIT_FAILURE); 400 } 401 size = htonl(sbuf.st_size); 402 } else { 403 size = 0; 404 } 405 406 if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) { 407 fprintf (stderr, "%s: Write error on %s: %s\n", 408 cmdname, imagefile, strerror(errno)); 409 exit (EXIT_FAILURE); 410 } 411 412 if (!file) { 413 break; 414 } 415 416 if (sep) { 417 *sep = ':'; 418 file = sep + 1; 419 } else { 420 file = NULL; 421 } 422 } 423 424 file = datafile; 425 426 for (;;) { 427 char *sep = strchr(file, ':'); 428 if (sep) { 429 *sep = '\0'; 430 copy_file (ifd, file, 1); 431 *sep++ = ':'; 432 file = sep; 433 } else { 434 copy_file (ifd, file, 0); 435 break; 436 } 437 } 438 } else { 439 copy_file (ifd, datafile, 0); 440 } 441 442 /* We're a bit of paranoid */ 443 #if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) 444 (void) fdatasync (ifd); 445 #else 446 (void) fsync (ifd); 447 #endif 448 449 if (fstat(ifd, &sbuf) < 0) { 450 fprintf (stderr, "%s: Can't stat %s: %s\n", 451 cmdname, imagefile, strerror(errno)); 452 exit (EXIT_FAILURE); 453 } 454 455 ptr = (unsigned char *)mmap(0, sbuf.st_size, 456 PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0); 457 if (ptr == (unsigned char *)MAP_FAILED) { 458 fprintf (stderr, "%s: Can't map %s: %s\n", 459 cmdname, imagefile, strerror(errno)); 460 exit (EXIT_FAILURE); 461 } 462 463 hdr = (image_header_t *)ptr; 464 465 checksum = crc32 (0, 466 (const char *)(ptr + sizeof(image_header_t)), 467 sbuf.st_size - sizeof(image_header_t) 468 ); 469 470 /* Build new header */ 471 hdr->ih_magic = htonl(IH_MAGIC); 472 hdr->ih_time = htonl(sbuf.st_mtime); 473 hdr->ih_size = htonl(sbuf.st_size - sizeof(image_header_t)); 474 hdr->ih_load = htonl(addr); 475 hdr->ih_ep = htonl(ep); 476 hdr->ih_dcrc = htonl(checksum); 477 hdr->ih_os = opt_os; 478 hdr->ih_arch = opt_arch; 479 hdr->ih_type = opt_type; 480 hdr->ih_comp = opt_comp; 481 482 strncpy((char *)hdr->ih_name, name, IH_NMLEN); 483 484 checksum = crc32(0,(const char *)hdr,sizeof(image_header_t)); 485 486 hdr->ih_hcrc = htonl(checksum); 487 488 print_header (hdr); 489 490 (void) munmap((void *)ptr, sbuf.st_size); 491 492 /* We're a bit of paranoid */ 493 #if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) 494 (void) fdatasync (ifd); 495 #else 496 (void) fsync (ifd); 497 #endif 498 499 if (close(ifd)) { 500 fprintf (stderr, "%s: Write error on %s: %s\n", 501 cmdname, imagefile, strerror(errno)); 502 exit (EXIT_FAILURE); 503 } 504 505 exit (EXIT_SUCCESS); 506 } 507 508 static void 509 copy_file (int ifd, const char *datafile, int pad) 510 { 511 int dfd; 512 struct stat sbuf; 513 unsigned char *ptr; 514 int tail; 515 int zero = 0; 516 int offset = 0; 517 int size; 518 519 if (vflag) { 520 fprintf (stderr, "Adding Image %s\n", datafile); 521 } 522 523 if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) { 524 fprintf (stderr, "%s: Can't open %s: %s\n", 525 cmdname, datafile, strerror(errno)); 526 exit (EXIT_FAILURE); 527 } 528 529 if (fstat(dfd, &sbuf) < 0) { 530 fprintf (stderr, "%s: Can't stat %s: %s\n", 531 cmdname, datafile, strerror(errno)); 532 exit (EXIT_FAILURE); 533 } 534 535 ptr = (unsigned char *)mmap(0, sbuf.st_size, 536 PROT_READ, MAP_SHARED, dfd, 0); 537 if (ptr == (unsigned char *)MAP_FAILED) { 538 fprintf (stderr, "%s: Can't read %s: %s\n", 539 cmdname, datafile, strerror(errno)); 540 exit (EXIT_FAILURE); 541 } 542 543 if (xflag) { 544 unsigned char *p = NULL; 545 /* 546 * XIP: do not append the image_header_t at the 547 * beginning of the file, but consume the space 548 * reserved for it. 549 */ 550 551 if ((unsigned)sbuf.st_size < sizeof(image_header_t)) { 552 fprintf (stderr, 553 "%s: Bad size: \"%s\" is too small for XIP\n", 554 cmdname, datafile); 555 exit (EXIT_FAILURE); 556 } 557 558 for (p=ptr; p < ptr+sizeof(image_header_t); p++) { 559 if ( *p != 0xff ) { 560 fprintf (stderr, 561 "%s: Bad file: \"%s\" has invalid buffer for XIP\n", 562 cmdname, datafile); 563 exit (EXIT_FAILURE); 564 } 565 } 566 567 offset = sizeof(image_header_t); 568 } 569 570 size = sbuf.st_size - offset; 571 if (write(ifd, ptr + offset, size) != size) { 572 fprintf (stderr, "%s: Write error on %s: %s\n", 573 cmdname, imagefile, strerror(errno)); 574 exit (EXIT_FAILURE); 575 } 576 577 if (pad && ((tail = size % 4) != 0)) { 578 579 if (write(ifd, (char *)&zero, 4-tail) != 4-tail) { 580 fprintf (stderr, "%s: Write error on %s: %s\n", 581 cmdname, imagefile, strerror(errno)); 582 exit (EXIT_FAILURE); 583 } 584 } 585 586 (void) munmap((void *)ptr, sbuf.st_size); 587 (void) close (dfd); 588 } 589 590 void 591 usage () 592 { 593 fprintf (stderr, "Usage: %s -l image\n" 594 " -l ==> list image header information\n" 595 " %s [-x] -A arch -O os -T type -C comp " 596 "-a addr -e ep -n name -d data_file[:data_file...] image\n", 597 cmdname, cmdname); 598 fprintf (stderr, " -A ==> set architecture to 'arch'\n" 599 " -O ==> set operating system to 'os'\n" 600 " -T ==> set image type to 'type'\n" 601 " -C ==> set compression type 'comp'\n" 602 " -a ==> set load address to 'addr' (hex)\n" 603 " -e ==> set entry point to 'ep' (hex)\n" 604 " -n ==> set image name to 'name'\n" 605 " -d ==> use image data from 'datafile'\n" 606 " -x ==> set XIP (execute in place)\n" 607 ); 608 exit (EXIT_FAILURE); 609 } 610 611 static void 612 print_header (image_header_t *hdr) 613 { 614 time_t timestamp; 615 uint32_t size; 616 617 timestamp = (time_t)ntohl(hdr->ih_time); 618 size = ntohl(hdr->ih_size); 619 620 printf ("Image Name: %.*s\n", IH_NMLEN, hdr->ih_name); 621 printf ("Created: %s", ctime(×tamp)); 622 printf ("Image Type: "); print_type(hdr); 623 printf ("Data Size: %d Bytes = %.2f kB = %.2f MB\n", 624 size, (double)size / 1.024e3, (double)size / 1.048576e6 ); 625 printf ("Load Address: 0x%08X\n", ntohl(hdr->ih_load)); 626 printf ("Entry Point: 0x%08X\n", ntohl(hdr->ih_ep)); 627 628 if (hdr->ih_type == IH_TYPE_MULTI || hdr->ih_type == IH_TYPE_SCRIPT) { 629 int i, ptrs; 630 uint32_t pos; 631 unsigned long *len_ptr = (unsigned long *) ( 632 (unsigned long)hdr + sizeof(image_header_t) 633 ); 634 635 /* determine number of images first (to calculate image offsets) */ 636 for (i=0; len_ptr[i]; ++i) /* null pointer terminates list */ 637 ; 638 ptrs = i; /* null pointer terminates list */ 639 640 pos = sizeof(image_header_t) + ptrs * sizeof(long); 641 printf ("Contents:\n"); 642 for (i=0; len_ptr[i]; ++i) { 643 size = ntohl(len_ptr[i]); 644 645 printf (" Image %d: %8d Bytes = %4d kB = %d MB\n", 646 i, size, size>>10, size>>20); 647 if (hdr->ih_type == IH_TYPE_SCRIPT && i > 0) { 648 /* 649 * the user may need to know offsets 650 * if planning to do something with 651 * multiple files 652 */ 653 printf (" Offset = %08X\n", pos); 654 } 655 /* copy_file() will pad the first files to even word align */ 656 size += 3; 657 size &= ~3; 658 pos += size; 659 } 660 } 661 } 662 663 664 static void 665 print_type (image_header_t *hdr) 666 { 667 printf ("%s %s %s (%s)\n", 668 put_arch (hdr->ih_arch), 669 put_os (hdr->ih_os ), 670 put_type (hdr->ih_type), 671 put_comp (hdr->ih_comp) 672 ); 673 } 674 675 static char *put_arch (int arch) 676 { 677 return (put_table_entry(arch_name, "Unknown Architecture", arch)); 678 } 679 680 static char *put_os (int os) 681 { 682 return (put_table_entry(os_name, "Unknown OS", os)); 683 } 684 685 static char *put_type (int type) 686 { 687 return (put_table_entry(type_name, "Unknown Image", type)); 688 } 689 690 static char *put_comp (int comp) 691 { 692 return (put_table_entry(comp_name, "Unknown Compression", comp)); 693 } 694 695 static char *put_table_entry (table_entry_t *table, char *msg, int type) 696 { 697 for (; table->val>=0; ++table) { 698 if (table->val == type) 699 return (table->lname); 700 } 701 return (msg); 702 } 703 704 static int get_arch(char *name) 705 { 706 return (get_table_entry(arch_name, "CPU", name)); 707 } 708 709 710 static int get_comp(char *name) 711 { 712 return (get_table_entry(comp_name, "Compression", name)); 713 } 714 715 716 static int get_os (char *name) 717 { 718 return (get_table_entry(os_name, "OS", name)); 719 } 720 721 722 static int get_type(char *name) 723 { 724 return (get_table_entry(type_name, "Image", name)); 725 } 726 727 static int get_table_entry (table_entry_t *table, char *msg, char *name) 728 { 729 table_entry_t *t; 730 int first = 1; 731 732 for (t=table; t->val>=0; ++t) { 733 if (t->sname && strcasecmp(t->sname, name)==0) 734 return (t->val); 735 } 736 fprintf (stderr, "\nInvalid %s Type - valid names are", msg); 737 for (t=table; t->val>=0; ++t) { 738 if (t->sname == NULL) 739 continue; 740 fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname); 741 first = 0; 742 } 743 fprintf (stderr, "\n"); 744 return (-1); 745 } 746