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mkimage.c 18 KB

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  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. #ifdef __APPLE__
  23. #define __FreeBSD__ 10
  24. #endif
  25. #include <errno.h>
  26. #include <fcntl.h>
  27. #include <stdio.h>
  28. #include <stdlib.h>
  29. #include <string.h>
  30. #ifndef __WIN32__
  31. #include <netinet/in.h> /* for host / network byte order conversions */
  32. #endif
  33. #include <sys/mman.h>
  34. #include <sys/stat.h>
  35. #include <time.h>
  36. #include <unistd.h>
  37. #if defined(__BEOS__) || defined(__NetBSD__) || defined(__APPLE__)
  38. #include <inttypes.h>
  39. #include <sys/types.h>
  40. #endif
  41. #ifdef __WIN32__
  42. typedef unsigned int __u32;
  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. #define ntohl(a) SWAP_LONG(a)
  53. #define htonl(a) SWAP_LONG(a)
  54. #endif /* __WIN32__ */
  55. #ifndef O_BINARY /* should be define'd on __WIN32__ */
  56. #define O_BINARY 0
  57. #endif
  58. #include "image.h"
  59. extern int errno;
  60. #ifndef MAP_FAILED
  61. #define MAP_FAILED (-1)
  62. #endif
  63. char *cmdname;
  64. extern unsigned long crc32 (unsigned long crc, const char *buf, unsigned int len);
  65. typedef struct table_entry {
  66. int val; /* as defined in image.h */
  67. char *sname; /* short (input) name */
  68. char *lname; /* long (output) name */
  69. } table_entry_t;
  70. table_entry_t arch_name[] = {
  71. { IH_CPU_INVALID, NULL, "Invalid CPU", },
  72. { IH_CPU_ALPHA, "alpha", "Alpha", },
  73. { IH_CPU_ARM, "arm", "ARM", },
  74. { IH_CPU_I386, "x86", "Intel x86", },
  75. { IH_CPU_IA64, "ia64", "IA64", },
  76. { IH_CPU_M68K, "m68k", "MC68000", },
  77. { IH_CPU_MICROBLAZE, "microblaze", "MicroBlaze", },
  78. { IH_CPU_MIPS, "mips", "MIPS", },
  79. { IH_CPU_MIPS64, "mips64", "MIPS 64 Bit", },
  80. { IH_CPU_NIOS, "nios", "NIOS", },
  81. { IH_CPU_NIOS2, "nios2", "NIOS II", },
  82. { IH_CPU_PPC, "ppc", "PowerPC", },
  83. { IH_CPU_S390, "s390", "IBM S390", },
  84. { IH_CPU_SH, "sh", "SuperH", },
  85. { IH_CPU_SPARC, "sparc", "SPARC", },
  86. { IH_CPU_SPARC64, "sparc64", "SPARC 64 Bit", },
  87. { IH_CPU_BLACKFIN, "blackfin", "Blackfin", },
  88. { IH_CPU_AVR32, "avr32", "AVR32", },
  89. { -1, "", "", },
  90. };
  91. table_entry_t os_name[] = {
  92. { IH_OS_INVALID, NULL, "Invalid OS", },
  93. { IH_OS_4_4BSD, "4_4bsd", "4_4BSD", },
  94. { IH_OS_ARTOS, "artos", "ARTOS", },
  95. { IH_OS_DELL, "dell", "Dell", },
  96. { IH_OS_ESIX, "esix", "Esix", },
  97. { IH_OS_FREEBSD, "freebsd", "FreeBSD", },
  98. { IH_OS_IRIX, "irix", "Irix", },
  99. { IH_OS_LINUX, "linux", "Linux", },
  100. { IH_OS_LYNXOS, "lynxos", "LynxOS", },
  101. { IH_OS_NCR, "ncr", "NCR", },
  102. { IH_OS_NETBSD, "netbsd", "NetBSD", },
  103. { IH_OS_OPENBSD, "openbsd", "OpenBSD", },
  104. { IH_OS_PSOS, "psos", "pSOS", },
  105. { IH_OS_QNX, "qnx", "QNX", },
  106. { IH_OS_RTEMS, "rtems", "RTEMS", },
  107. { IH_OS_SCO, "sco", "SCO", },
  108. { IH_OS_SOLARIS, "solaris", "Solaris", },
  109. { IH_OS_SVR4, "svr4", "SVR4", },
  110. { IH_OS_U_BOOT, "u-boot", "U-Boot", },
  111. { IH_OS_VXWORKS, "vxworks", "VxWorks", },
  112. { -1, "", "", },
  113. };
  114. table_entry_t type_name[] = {
  115. { IH_TYPE_INVALID, NULL, "Invalid Image", },
  116. { IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image", },
  117. { IH_TYPE_FIRMWARE, "firmware", "Firmware", },
  118. { IH_TYPE_KERNEL, "kernel", "Kernel Image", },
  119. { IH_TYPE_MULTI, "multi", "Multi-File Image", },
  120. { IH_TYPE_RAMDISK, "ramdisk", "RAMDisk Image", },
  121. { IH_TYPE_SCRIPT, "script", "Script", },
  122. { IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
  123. { IH_TYPE_FLATDT, "flat_dt", "Flat Device Tree", },
  124. { -1, "", "", },
  125. };
  126. table_entry_t comp_name[] = {
  127. { IH_COMP_NONE, "none", "uncompressed", },
  128. { IH_COMP_BZIP2, "bzip2", "bzip2 compressed", },
  129. { IH_COMP_GZIP, "gzip", "gzip compressed", },
  130. { IH_COMP_LZMA, "lzma", "lzma compressed", },
  131. { -1, "", "", },
  132. };
  133. static void copy_file (int, const char *, int);
  134. static void usage (void);
  135. static void print_header (image_header_t *);
  136. static void print_type (image_header_t *);
  137. static char *put_table_entry (table_entry_t *, char *, int);
  138. static char *put_arch (int);
  139. static char *put_type (int);
  140. static char *put_os (int);
  141. static char *put_comp (int);
  142. static int get_table_entry (table_entry_t *, char *, char *);
  143. static int get_arch(char *);
  144. static int get_comp(char *);
  145. static int get_os (char *);
  146. static int get_type(char *);
  147. char *datafile;
  148. char *imagefile;
  149. int dflag = 0;
  150. int eflag = 0;
  151. int lflag = 0;
  152. int vflag = 0;
  153. int xflag = 0;
  154. int opt_os = IH_OS_LINUX;
  155. int opt_arch = IH_CPU_PPC;
  156. int opt_type = IH_TYPE_KERNEL;
  157. int opt_comp = IH_COMP_GZIP;
  158. image_header_t header;
  159. image_header_t *hdr = &header;
  160. int
  161. main (int argc, char **argv)
  162. {
  163. int ifd;
  164. uint32_t checksum;
  165. uint32_t addr;
  166. uint32_t ep;
  167. struct stat sbuf;
  168. unsigned char *ptr;
  169. char *name = "";
  170. cmdname = *argv;
  171. addr = ep = 0;
  172. while (--argc > 0 && **++argv == '-') {
  173. while (*++*argv) {
  174. switch (**argv) {
  175. case 'l':
  176. lflag = 1;
  177. break;
  178. case 'A':
  179. if ((--argc <= 0) ||
  180. (opt_arch = get_arch(*++argv)) < 0)
  181. usage ();
  182. goto NXTARG;
  183. case 'C':
  184. if ((--argc <= 0) ||
  185. (opt_comp = get_comp(*++argv)) < 0)
  186. usage ();
  187. goto NXTARG;
  188. case 'O':
  189. if ((--argc <= 0) ||
  190. (opt_os = get_os(*++argv)) < 0)
  191. usage ();
  192. goto NXTARG;
  193. case 'T':
  194. if ((--argc <= 0) ||
  195. (opt_type = get_type(*++argv)) < 0)
  196. usage ();
  197. goto NXTARG;
  198. case 'a':
  199. if (--argc <= 0)
  200. usage ();
  201. addr = strtoul (*++argv, (char **)&ptr, 16);
  202. if (*ptr) {
  203. fprintf (stderr,
  204. "%s: invalid load address %s\n",
  205. cmdname, *argv);
  206. exit (EXIT_FAILURE);
  207. }
  208. goto NXTARG;
  209. case 'd':
  210. if (--argc <= 0)
  211. usage ();
  212. datafile = *++argv;
  213. dflag = 1;
  214. goto NXTARG;
  215. case 'e':
  216. if (--argc <= 0)
  217. usage ();
  218. ep = strtoul (*++argv, (char **)&ptr, 16);
  219. if (*ptr) {
  220. fprintf (stderr,
  221. "%s: invalid entry point %s\n",
  222. cmdname, *argv);
  223. exit (EXIT_FAILURE);
  224. }
  225. eflag = 1;
  226. goto NXTARG;
  227. case 'n':
  228. if (--argc <= 0)
  229. usage ();
  230. name = *++argv;
  231. goto NXTARG;
  232. case 'v':
  233. vflag++;
  234. break;
  235. case 'x':
  236. xflag++;
  237. break;
  238. default:
  239. usage ();
  240. }
  241. }
  242. NXTARG: ;
  243. }
  244. if ((argc != 1) || ((lflag ^ dflag) == 0))
  245. usage();
  246. if (!eflag) {
  247. ep = addr;
  248. /* If XIP, entry point must be after the U-Boot header */
  249. if (xflag)
  250. ep += sizeof(image_header_t);
  251. }
  252. /*
  253. * If XIP, ensure the entry point is equal to the load address plus
  254. * the size of the U-Boot header.
  255. */
  256. if (xflag) {
  257. if (ep != addr + sizeof(image_header_t)) {
  258. fprintf (stderr,
  259. "%s: For XIP, the entry point must be the load addr + %lu\n",
  260. cmdname,
  261. (unsigned long)sizeof(image_header_t));
  262. exit (EXIT_FAILURE);
  263. }
  264. }
  265. imagefile = *argv;
  266. if (lflag) {
  267. ifd = open(imagefile, O_RDONLY|O_BINARY);
  268. } else {
  269. ifd = open(imagefile, O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
  270. }
  271. if (ifd < 0) {
  272. fprintf (stderr, "%s: Can't open %s: %s\n",
  273. cmdname, imagefile, strerror(errno));
  274. exit (EXIT_FAILURE);
  275. }
  276. if (lflag) {
  277. int len;
  278. char *data;
  279. /*
  280. * list header information of existing image
  281. */
  282. if (fstat(ifd, &sbuf) < 0) {
  283. fprintf (stderr, "%s: Can't stat %s: %s\n",
  284. cmdname, imagefile, strerror(errno));
  285. exit (EXIT_FAILURE);
  286. }
  287. if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
  288. fprintf (stderr,
  289. "%s: Bad size: \"%s\" is no valid image\n",
  290. cmdname, imagefile);
  291. exit (EXIT_FAILURE);
  292. }
  293. ptr = (unsigned char *)mmap(0, sbuf.st_size,
  294. PROT_READ, MAP_SHARED, ifd, 0);
  295. if ((caddr_t)ptr == (caddr_t)-1) {
  296. fprintf (stderr, "%s: Can't read %s: %s\n",
  297. cmdname, imagefile, strerror(errno));
  298. exit (EXIT_FAILURE);
  299. }
  300. /*
  301. * create copy of header so that we can blank out the
  302. * checksum field for checking - this can't be done
  303. * on the PROT_READ mapped data.
  304. */
  305. memcpy (hdr, ptr, sizeof(image_header_t));
  306. if (ntohl(hdr->ih_magic) != IH_MAGIC) {
  307. fprintf (stderr,
  308. "%s: Bad Magic Number: \"%s\" is no valid image\n",
  309. cmdname, imagefile);
  310. exit (EXIT_FAILURE);
  311. }
  312. data = (char *)hdr;
  313. len = sizeof(image_header_t);
  314. checksum = ntohl(hdr->ih_hcrc);
  315. hdr->ih_hcrc = htonl(0); /* clear for re-calculation */
  316. if (crc32 (0, data, len) != checksum) {
  317. fprintf (stderr,
  318. "%s: ERROR: \"%s\" has bad header checksum!\n",
  319. cmdname, imagefile);
  320. exit (EXIT_FAILURE);
  321. }
  322. data = (char *)(ptr + sizeof(image_header_t));
  323. len = sbuf.st_size - sizeof(image_header_t) ;
  324. if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
  325. fprintf (stderr,
  326. "%s: ERROR: \"%s\" has corrupted data!\n",
  327. cmdname, imagefile);
  328. exit (EXIT_FAILURE);
  329. }
  330. /* for multi-file images we need the data part, too */
  331. print_header ((image_header_t *)ptr);
  332. (void) munmap((void *)ptr, sbuf.st_size);
  333. (void) close (ifd);
  334. exit (EXIT_SUCCESS);
  335. }
  336. /*
  337. * Must be -w then:
  338. *
  339. * write dummy header, to be fixed later
  340. */
  341. memset (hdr, 0, sizeof(image_header_t));
  342. if (write(ifd, hdr, sizeof(image_header_t)) != sizeof(image_header_t)) {
  343. fprintf (stderr, "%s: Write error on %s: %s\n",
  344. cmdname, imagefile, strerror(errno));
  345. exit (EXIT_FAILURE);
  346. }
  347. if (opt_type == IH_TYPE_MULTI || opt_type == IH_TYPE_SCRIPT) {
  348. char *file = datafile;
  349. uint32_t size;
  350. for (;;) {
  351. char *sep = NULL;
  352. if (file) {
  353. if ((sep = strchr(file, ':')) != NULL) {
  354. *sep = '\0';
  355. }
  356. if (stat (file, &sbuf) < 0) {
  357. fprintf (stderr, "%s: Can't stat %s: %s\n",
  358. cmdname, file, strerror(errno));
  359. exit (EXIT_FAILURE);
  360. }
  361. size = htonl(sbuf.st_size);
  362. } else {
  363. size = 0;
  364. }
  365. if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
  366. fprintf (stderr, "%s: Write error on %s: %s\n",
  367. cmdname, imagefile, strerror(errno));
  368. exit (EXIT_FAILURE);
  369. }
  370. if (!file) {
  371. break;
  372. }
  373. if (sep) {
  374. *sep = ':';
  375. file = sep + 1;
  376. } else {
  377. file = NULL;
  378. }
  379. }
  380. file = datafile;
  381. for (;;) {
  382. char *sep = strchr(file, ':');
  383. if (sep) {
  384. *sep = '\0';
  385. copy_file (ifd, file, 1);
  386. *sep++ = ':';
  387. file = sep;
  388. } else {
  389. copy_file (ifd, file, 0);
  390. break;
  391. }
  392. }
  393. } else {
  394. copy_file (ifd, datafile, 0);
  395. }
  396. /* We're a bit of paranoid */
  397. #if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
  398. (void) fdatasync (ifd);
  399. #else
  400. (void) fsync (ifd);
  401. #endif
  402. if (fstat(ifd, &sbuf) < 0) {
  403. fprintf (stderr, "%s: Can't stat %s: %s\n",
  404. cmdname, imagefile, strerror(errno));
  405. exit (EXIT_FAILURE);
  406. }
  407. ptr = (unsigned char *)mmap(0, sbuf.st_size,
  408. PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
  409. if (ptr == (unsigned char *)MAP_FAILED) {
  410. fprintf (stderr, "%s: Can't map %s: %s\n",
  411. cmdname, imagefile, strerror(errno));
  412. exit (EXIT_FAILURE);
  413. }
  414. hdr = (image_header_t *)ptr;
  415. checksum = crc32 (0,
  416. (const char *)(ptr + sizeof(image_header_t)),
  417. sbuf.st_size - sizeof(image_header_t)
  418. );
  419. /* Build new header */
  420. hdr->ih_magic = htonl(IH_MAGIC);
  421. hdr->ih_time = htonl(sbuf.st_mtime);
  422. hdr->ih_size = htonl(sbuf.st_size - sizeof(image_header_t));
  423. hdr->ih_load = htonl(addr);
  424. hdr->ih_ep = htonl(ep);
  425. hdr->ih_dcrc = htonl(checksum);
  426. hdr->ih_os = opt_os;
  427. hdr->ih_arch = opt_arch;
  428. hdr->ih_type = opt_type;
  429. hdr->ih_comp = opt_comp;
  430. strncpy((char *)hdr->ih_name, name, IH_NMLEN);
  431. checksum = crc32(0,(const char *)hdr,sizeof(image_header_t));
  432. hdr->ih_hcrc = htonl(checksum);
  433. print_header (hdr);
  434. (void) munmap((void *)ptr, sbuf.st_size);
  435. /* We're a bit of paranoid */
  436. #if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
  437. (void) fdatasync (ifd);
  438. #else
  439. (void) fsync (ifd);
  440. #endif
  441. if (close(ifd)) {
  442. fprintf (stderr, "%s: Write error on %s: %s\n",
  443. cmdname, imagefile, strerror(errno));
  444. exit (EXIT_FAILURE);
  445. }
  446. exit (EXIT_SUCCESS);
  447. }
  448. static void
  449. copy_file (int ifd, const char *datafile, int pad)
  450. {
  451. int dfd;
  452. struct stat sbuf;
  453. unsigned char *ptr;
  454. int tail;
  455. int zero = 0;
  456. int offset = 0;
  457. int size;
  458. if (vflag) {
  459. fprintf (stderr, "Adding Image %s\n", datafile);
  460. }
  461. if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
  462. fprintf (stderr, "%s: Can't open %s: %s\n",
  463. cmdname, datafile, strerror(errno));
  464. exit (EXIT_FAILURE);
  465. }
  466. if (fstat(dfd, &sbuf) < 0) {
  467. fprintf (stderr, "%s: Can't stat %s: %s\n",
  468. cmdname, datafile, strerror(errno));
  469. exit (EXIT_FAILURE);
  470. }
  471. ptr = (unsigned char *)mmap(0, sbuf.st_size,
  472. PROT_READ, MAP_SHARED, dfd, 0);
  473. if (ptr == (unsigned char *)MAP_FAILED) {
  474. fprintf (stderr, "%s: Can't read %s: %s\n",
  475. cmdname, datafile, strerror(errno));
  476. exit (EXIT_FAILURE);
  477. }
  478. if (xflag) {
  479. unsigned char *p = NULL;
  480. /*
  481. * XIP: do not append the image_header_t at the
  482. * beginning of the file, but consume the space
  483. * reserved for it.
  484. */
  485. if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
  486. fprintf (stderr,
  487. "%s: Bad size: \"%s\" is too small for XIP\n",
  488. cmdname, datafile);
  489. exit (EXIT_FAILURE);
  490. }
  491. for (p=ptr; p < ptr+sizeof(image_header_t); p++) {
  492. if ( *p != 0xff ) {
  493. fprintf (stderr,
  494. "%s: Bad file: \"%s\" has invalid buffer for XIP\n",
  495. cmdname, datafile);
  496. exit (EXIT_FAILURE);
  497. }
  498. }
  499. offset = sizeof(image_header_t);
  500. }
  501. size = sbuf.st_size - offset;
  502. if (write(ifd, ptr + offset, size) != size) {
  503. fprintf (stderr, "%s: Write error on %s: %s\n",
  504. cmdname, imagefile, strerror(errno));
  505. exit (EXIT_FAILURE);
  506. }
  507. if (pad && ((tail = size % 4) != 0)) {
  508. if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
  509. fprintf (stderr, "%s: Write error on %s: %s\n",
  510. cmdname, imagefile, strerror(errno));
  511. exit (EXIT_FAILURE);
  512. }
  513. }
  514. (void) munmap((void *)ptr, sbuf.st_size);
  515. (void) close (dfd);
  516. }
  517. void
  518. usage ()
  519. {
  520. fprintf (stderr, "Usage: %s -l image\n"
  521. " -l ==> list image header information\n"
  522. " %s [-x] -A arch -O os -T type -C comp "
  523. "-a addr -e ep -n name -d data_file[:data_file...] image\n",
  524. cmdname, cmdname);
  525. fprintf (stderr, " -A ==> set architecture to 'arch'\n"
  526. " -O ==> set operating system to 'os'\n"
  527. " -T ==> set image type to 'type'\n"
  528. " -C ==> set compression type 'comp'\n"
  529. " -a ==> set load address to 'addr' (hex)\n"
  530. " -e ==> set entry point to 'ep' (hex)\n"
  531. " -n ==> set image name to 'name'\n"
  532. " -d ==> use image data from 'datafile'\n"
  533. " -x ==> set XIP (execute in place)\n"
  534. );
  535. exit (EXIT_FAILURE);
  536. }
  537. static void
  538. print_header (image_header_t *hdr)
  539. {
  540. time_t timestamp;
  541. uint32_t size;
  542. timestamp = (time_t)ntohl(hdr->ih_time);
  543. size = ntohl(hdr->ih_size);
  544. printf ("Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
  545. printf ("Created: %s", ctime(&timestamp));
  546. printf ("Image Type: "); print_type(hdr);
  547. printf ("Data Size: %d Bytes = %.2f kB = %.2f MB\n",
  548. size, (double)size / 1.024e3, (double)size / 1.048576e6 );
  549. printf ("Load Address: 0x%08X\n", ntohl(hdr->ih_load));
  550. printf ("Entry Point: 0x%08X\n", ntohl(hdr->ih_ep));
  551. if (hdr->ih_type == IH_TYPE_MULTI || hdr->ih_type == IH_TYPE_SCRIPT) {
  552. int i, ptrs;
  553. uint32_t pos;
  554. uint32_t *len_ptr = (uint32_t *) (
  555. (unsigned long)hdr + sizeof(image_header_t)
  556. );
  557. /* determine number of images first (to calculate image offsets) */
  558. for (i=0; len_ptr[i]; ++i) /* null pointer terminates list */
  559. ;
  560. ptrs = i; /* null pointer terminates list */
  561. pos = sizeof(image_header_t) + ptrs * sizeof(long);
  562. printf ("Contents:\n");
  563. for (i=0; len_ptr[i]; ++i) {
  564. size = ntohl(len_ptr[i]);
  565. printf (" Image %d: %8d Bytes = %4d kB = %d MB\n",
  566. i, size, size>>10, size>>20);
  567. if (hdr->ih_type == IH_TYPE_SCRIPT && i > 0) {
  568. /*
  569. * the user may need to know offsets
  570. * if planning to do something with
  571. * multiple files
  572. */
  573. printf (" Offset = %08X\n", pos);
  574. }
  575. /* copy_file() will pad the first files to even word align */
  576. size += 3;
  577. size &= ~3;
  578. pos += size;
  579. }
  580. }
  581. }
  582. static void
  583. print_type (image_header_t *hdr)
  584. {
  585. printf ("%s %s %s (%s)\n",
  586. put_arch (hdr->ih_arch),
  587. put_os (hdr->ih_os ),
  588. put_type (hdr->ih_type),
  589. put_comp (hdr->ih_comp)
  590. );
  591. }
  592. static char *put_arch (int arch)
  593. {
  594. return (put_table_entry(arch_name, "Unknown Architecture", arch));
  595. }
  596. static char *put_os (int os)
  597. {
  598. return (put_table_entry(os_name, "Unknown OS", os));
  599. }
  600. static char *put_type (int type)
  601. {
  602. return (put_table_entry(type_name, "Unknown Image", type));
  603. }
  604. static char *put_comp (int comp)
  605. {
  606. return (put_table_entry(comp_name, "Unknown Compression", comp));
  607. }
  608. static char *put_table_entry (table_entry_t *table, char *msg, int type)
  609. {
  610. for (; table->val>=0; ++table) {
  611. if (table->val == type)
  612. return (table->lname);
  613. }
  614. return (msg);
  615. }
  616. static int get_arch(char *name)
  617. {
  618. return (get_table_entry(arch_name, "CPU", name));
  619. }
  620. static int get_comp(char *name)
  621. {
  622. return (get_table_entry(comp_name, "Compression", name));
  623. }
  624. static int get_os (char *name)
  625. {
  626. return (get_table_entry(os_name, "OS", name));
  627. }
  628. static int get_type(char *name)
  629. {
  630. return (get_table_entry(type_name, "Image", name));
  631. }
  632. static int get_table_entry (table_entry_t *table, char *msg, char *name)
  633. {
  634. table_entry_t *t;
  635. int first = 1;
  636. for (t=table; t->val>=0; ++t) {
  637. if (t->sname && strcasecmp(t->sname, name)==0)
  638. return (t->val);
  639. }
  640. fprintf (stderr, "\nInvalid %s Type - valid names are", msg);
  641. for (t=table; t->val>=0; ++t) {
  642. if (t->sname == NULL)
  643. continue;
  644. fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname);
  645. first = 0;
  646. }
  647. fprintf (stderr, "\n");
  648. return (-1);
  649. }