[people/ms/u-boot.git] / tools / mkimage.c

/*
 * (C) Copyright 2000-2004
 * DENX Software Engineering
 * Wolfgang Denk, wd@denx.de
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifndef __WIN32__
#include <netinet/in.h>		/* for host / network byte order conversions	*/
#endif
#include <sys/mman.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>

#if defined(__BEOS__) || defined(__NetBSD__) || defined(__APPLE__)
#include <inttypes.h>
#endif

#ifdef __WIN32__
typedef unsigned int __u32;

#define SWAP_LONG(x) \
	((__u32)( \
		(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
		(((__u32)(x) & (__u32)0x0000ff00UL) <<  8) | \
		(((__u32)(x) & (__u32)0x00ff0000UL) >>  8) | \
		(((__u32)(x) & (__u32)0xff000000UL) >> 24) ))
typedef		unsigned char	uint8_t;
typedef		unsigned short	uint16_t;
typedef		unsigned int	uint32_t;

#define     ntohl(a)	SWAP_LONG(a)
#define     htonl(a)	SWAP_LONG(a)
#endif	/* __WIN32__ */

#ifndef	O_BINARY		/* should be define'd on __WIN32__ */
#define O_BINARY	0
#endif

#include <image.h>

extern int errno;

#ifndef MAP_FAILED
#define MAP_FAILED (-1)
#endif

char *cmdname;

extern unsigned long crc32 (unsigned long crc, const char *buf, unsigned int len);

typedef struct table_entry {
	int	val;		/* as defined in image.h	*/
	char	*sname;		/* short (input) name		*/
	char	*lname;		/* long (output) name		*/
} table_entry_t;

table_entry_t arch_name[] = {
    {	IH_CPU_INVALID,		NULL,		"Invalid CPU",	},
    {	IH_CPU_ALPHA,		"alpha",	"Alpha",	},
    {	IH_CPU_ARM,		"arm",		"ARM",		},
    {	IH_CPU_I386,		"x86",		"Intel x86",	},
    {	IH_CPU_IA64,		"ia64",		"IA64",		},
    {	IH_CPU_M68K,		"m68k",		"MC68000",	},
    {	IH_CPU_MICROBLAZE,	"microblaze",	"MicroBlaze",	},
    {	IH_CPU_MIPS,		"mips",		"MIPS",		},
    {	IH_CPU_MIPS64,		"mips64",	"MIPS 64 Bit",	},
    {	IH_CPU_NIOS,		"nios",		"NIOS",		},
    {	IH_CPU_NIOS2,		"nios2",	"NIOS II",	},
    {	IH_CPU_PPC,		"ppc",		"PowerPC",	},
    {	IH_CPU_S390,		"s390",		"IBM S390",	},
    {	IH_CPU_SH,		"sh",		"SuperH",	},
    {	IH_CPU_SPARC,		"sparc",	"SPARC",	},
    {	IH_CPU_SPARC64,		"sparc64",	"SPARC 64 Bit",	},
    {	IH_CPU_BLACKFIN,	"blackfin",	"Blackfin",	},
    {	IH_CPU_AVR32,		"avr32",	"AVR32",	},
    {	-1,			"",		"",		},
};

table_entry_t os_name[] = {
    {	IH_OS_INVALID,	NULL,		"Invalid OS",		},
    {	IH_OS_4_4BSD,	"4_4bsd",	"4_4BSD",		},
    {	IH_OS_ARTOS,	"artos",	"ARTOS",		},
    {	IH_OS_DELL,	"dell",		"Dell",			},
    {	IH_OS_ESIX,	"esix",		"Esix",			},
    {	IH_OS_FREEBSD,	"freebsd",	"FreeBSD",		},
    {	IH_OS_IRIX,	"irix",		"Irix",			},
    {	IH_OS_LINUX,	"linux",	"Linux",		},
    {	IH_OS_LYNXOS,	"lynxos",	"LynxOS",		},
    {	IH_OS_NCR,	"ncr",		"NCR",			},
    {	IH_OS_NETBSD,	"netbsd",	"NetBSD",		},
    {	IH_OS_OPENBSD,	"openbsd",	"OpenBSD",		},
    {	IH_OS_PSOS,	"psos",		"pSOS",			},
    {	IH_OS_QNX,	"qnx",		"QNX",			},
    {	IH_OS_RTEMS,	"rtems",	"RTEMS",		},
    {	IH_OS_SCO,	"sco",		"SCO",			},
    {	IH_OS_SOLARIS,	"solaris",	"Solaris",		},
    {	IH_OS_SVR4,	"svr4",		"SVR4",			},
    {	IH_OS_U_BOOT,	"u-boot",	"U-Boot",		},
    {	IH_OS_VXWORKS,	"vxworks",	"VxWorks",		},
    {	-1,		"",		"",			},
};

table_entry_t type_name[] = {
    {	IH_TYPE_INVALID,    NULL,	  "Invalid Image",	},
    {	IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image",	},
    {	IH_TYPE_FIRMWARE,   "firmware",	  "Firmware",		},
    {	IH_TYPE_KERNEL,	    "kernel",	  "Kernel Image",	},
    {	IH_TYPE_MULTI,	    "multi",	  "Multi-File Image",	},
    {	IH_TYPE_RAMDISK,    "ramdisk",	  "RAMDisk Image",	},
    {	IH_TYPE_SCRIPT,     "script",	  "Script",		},
    {	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
    {	IH_TYPE_FLATDT,     "flat_dt",    "Flat Device Tree",	},
    {	-1,		    "",		  "",			},
};

table_entry_t comp_name[] = {
    {	IH_COMP_NONE,	"none",		"uncompressed",		},
    {	IH_COMP_BZIP2,	"bzip2",	"bzip2 compressed",	},
    {	IH_COMP_GZIP,	"gzip",		"gzip compressed",	},
    {	-1,		"",		"",			},
};

static	void	copy_file (int, const char *, int);
static	void	usage	(void);
static	void	print_header (image_header_t *);
static	void	print_type (image_header_t *);
static	char	*put_table_entry (table_entry_t *, char *, int);
static	char	*put_arch (int);
static	char	*put_type (int);
static	char	*put_os   (int);
static	char	*put_comp (int);
static	int	get_table_entry (table_entry_t *, char *, char *);
static	int	get_arch(char *);
static	int	get_comp(char *);
static	int	get_os  (char *);
static	int	get_type(char *);


char	*datafile;
char	*imagefile;

int dflag    = 0;
int eflag    = 0;
int lflag    = 0;
int vflag    = 0;
int xflag    = 0;
int opt_os   = IH_OS_LINUX;
int opt_arch = IH_CPU_PPC;
int opt_type = IH_TYPE_KERNEL;
int opt_comp = IH_COMP_GZIP;

image_header_t header;
image_header_t *hdr = &header;

int
main (int argc, char **argv)
{
	int ifd;
	uint32_t checksum;
	uint32_t addr;
	uint32_t ep;
	struct stat sbuf;
	unsigned char *ptr;
	char *name = "";

	cmdname = *argv;

	addr = ep = 0;

	while (--argc > 0 && **++argv == '-') {
		while (*++*argv) {
			switch (**argv) {
			case 'l':
				lflag = 1;
				break;
			case 'A':
				if ((--argc <= 0) ||
				    (opt_arch = get_arch(*++argv)) < 0)
					usage ();
				goto NXTARG;
			case 'C':
				if ((--argc <= 0) ||
				    (opt_comp = get_comp(*++argv)) < 0)
					usage ();
				goto NXTARG;
			case 'O':
				if ((--argc <= 0) ||
				    (opt_os = get_os(*++argv)) < 0)
					usage ();
				goto NXTARG;
			case 'T':
				if ((--argc <= 0) ||
				    (opt_type = get_type(*++argv)) < 0)
					usage ();
				goto NXTARG;

			case 'a':
				if (--argc <= 0)
					usage ();
				addr = strtoul (*++argv, (char **)&ptr, 16);
				if (*ptr) {
					fprintf (stderr,
						"%s: invalid load address %s\n",
						cmdname, *argv);
					exit (EXIT_FAILURE);
				}
				goto NXTARG;
			case 'd':
				if (--argc <= 0)
					usage ();
				datafile = *++argv;
				dflag = 1;
				goto NXTARG;
			case 'e':
				if (--argc <= 0)
					usage ();
				ep = strtoul (*++argv, (char **)&ptr, 16);
				if (*ptr) {
					fprintf (stderr,
						"%s: invalid entry point %s\n",
						cmdname, *argv);
					exit (EXIT_FAILURE);
				}
				eflag = 1;
				goto NXTARG;
			case 'n':
				if (--argc <= 0)
					usage ();
				name = *++argv;
				goto NXTARG;
			case 'v':
				vflag++;
				break;
			case 'x':
				xflag++;
				break;
			default:
				usage ();
			}
		}
NXTARG:		;
	}

	if ((argc != 1) || ((lflag ^ dflag) == 0))
		usage();

	if (!eflag) {
		ep = addr;
		/* If XIP, entry point must be after the U-Boot header */
		if (xflag)
			ep += sizeof(image_header_t);
	}

	/*
	 * If XIP, ensure the entry point is equal to the load address plus
	 * the size of the U-Boot header.
	 */
	if (xflag) {
		if (ep != addr + sizeof(image_header_t)) {
			fprintf (stderr,
				"%s: For XIP, the entry point must be the load addr + %lu\n",
				cmdname,
				(unsigned long)sizeof(image_header_t));
			exit (EXIT_FAILURE);
		}
	}

	imagefile = *argv;

	if (lflag) {
		ifd = open(imagefile, O_RDONLY|O_BINARY);
	} else {
		ifd = open(imagefile, O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
	}

	if (ifd < 0) {
		fprintf (stderr, "%s: Can't open %s: %s\n",
			cmdname, imagefile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	if (lflag) {
		int len;
		char *data;
		/*
		 * list header information of existing image
		 */
		if (fstat(ifd, &sbuf) < 0) {
			fprintf (stderr, "%s: Can't stat %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}

		if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
			fprintf (stderr,
				"%s: Bad size: \"%s\" is no valid image\n",
				cmdname, imagefile);
			exit (EXIT_FAILURE);
		}

		ptr = (unsigned char *)mmap(0, sbuf.st_size,
					    PROT_READ, MAP_SHARED, ifd, 0);
		if ((caddr_t)ptr == (caddr_t)-1) {
			fprintf (stderr, "%s: Can't read %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}

		/*
		 * create copy of header so that we can blank out the
		 * checksum field for checking - this can't be done
		 * on the PROT_READ mapped data.
		 */
		memcpy (hdr, ptr, sizeof(image_header_t));

		if (ntohl(hdr->ih_magic) != IH_MAGIC) {
			fprintf (stderr,
				"%s: Bad Magic Number: \"%s\" is no valid image\n",
				cmdname, imagefile);
			exit (EXIT_FAILURE);
		}

		data = (char *)hdr;
		len  = sizeof(image_header_t);

		checksum = ntohl(hdr->ih_hcrc);
		hdr->ih_hcrc = htonl(0);	/* clear for re-calculation */

		if (crc32 (0, data, len) != checksum) {
			fprintf (stderr,
				"%s: ERROR: \"%s\" has bad header checksum!\n",
				cmdname, imagefile);
			exit (EXIT_FAILURE);
		}

		data = (char *)(ptr + sizeof(image_header_t));
		len  = sbuf.st_size - sizeof(image_header_t) ;

		if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
			fprintf (stderr,
				"%s: ERROR: \"%s\" has corrupted data!\n",
				cmdname, imagefile);
			exit (EXIT_FAILURE);
		}

		/* for multi-file images we need the data part, too */
		print_header ((image_header_t *)ptr);

		(void) munmap((void *)ptr, sbuf.st_size);
		(void) close (ifd);

		exit (EXIT_SUCCESS);
	}

	/*
	 * Must be -w then:
	 *
	 * write dummy header, to be fixed later
	 */
	memset (hdr, 0, sizeof(image_header_t));

	if (write(ifd, hdr, sizeof(image_header_t)) != sizeof(image_header_t)) {
		fprintf (stderr, "%s: Write error on %s: %s\n",
			cmdname, imagefile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	if (opt_type == IH_TYPE_MULTI || opt_type == IH_TYPE_SCRIPT) {
		char *file = datafile;
		uint32_t size;

		for (;;) {
			char *sep = NULL;

			if (file) {
				if ((sep = strchr(file, ':')) != NULL) {
					*sep = '\0';
				}

				if (stat (file, &sbuf) < 0) {
					fprintf (stderr, "%s: Can't stat %s: %s\n",
						cmdname, file, strerror(errno));
					exit (EXIT_FAILURE);
				}
				size = htonl(sbuf.st_size);
			} else {
				size = 0;
			}

			if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
				fprintf (stderr, "%s: Write error on %s: %s\n",
					cmdname, imagefile, strerror(errno));
				exit (EXIT_FAILURE);
			}

			if (!file) {
				break;
			}

			if (sep) {
				*sep = ':';
				file = sep + 1;
			} else {
				file = NULL;
			}
		}

		file = datafile;

		for (;;) {
			char *sep = strchr(file, ':');
			if (sep) {
				*sep = '\0';
				copy_file (ifd, file, 1);
				*sep++ = ':';
				file = sep;
			} else {
				copy_file (ifd, file, 0);
				break;
			}
		}
	} else {
		copy_file (ifd, datafile, 0);
	}

	/* We're a bit of paranoid */
#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
	(void) fdatasync (ifd);
#else
	(void) fsync (ifd);
#endif

	if (fstat(ifd, &sbuf) < 0) {
		fprintf (stderr, "%s: Can't stat %s: %s\n",
			cmdname, imagefile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	ptr = (unsigned char *)mmap(0, sbuf.st_size,
				    PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
	if (ptr == (unsigned char *)MAP_FAILED) {
		fprintf (stderr, "%s: Can't map %s: %s\n",
			cmdname, imagefile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	hdr = (image_header_t *)ptr;

	checksum = crc32 (0,
			  (const char *)(ptr + sizeof(image_header_t)),
			  sbuf.st_size - sizeof(image_header_t)
			 );

	/* Build new header */
	hdr->ih_magic = htonl(IH_MAGIC);
	hdr->ih_time  = htonl(sbuf.st_mtime);
	hdr->ih_size  = htonl(sbuf.st_size - sizeof(image_header_t));
	hdr->ih_load  = htonl(addr);
	hdr->ih_ep    = htonl(ep);
	hdr->ih_dcrc  = htonl(checksum);
	hdr->ih_os    = opt_os;
	hdr->ih_arch  = opt_arch;
	hdr->ih_type  = opt_type;
	hdr->ih_comp  = opt_comp;

	strncpy((char *)hdr->ih_name, name, IH_NMLEN);

	checksum = crc32(0,(const char *)hdr,sizeof(image_header_t));

	hdr->ih_hcrc = htonl(checksum);

	print_header (hdr);

	(void) munmap((void *)ptr, sbuf.st_size);

	/* We're a bit of paranoid */
#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
	(void) fdatasync (ifd);
#else
	(void) fsync (ifd);
#endif

	if (close(ifd)) {
		fprintf (stderr, "%s: Write error on %s: %s\n",
			cmdname, imagefile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	exit (EXIT_SUCCESS);
}

static void
copy_file (int ifd, const char *datafile, int pad)
{
	int dfd;
	struct stat sbuf;
	unsigned char *ptr;
	int tail;
	int zero = 0;
	int offset = 0;
	int size;

	if (vflag) {
		fprintf (stderr, "Adding Image %s\n", datafile);
	}

	if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
		fprintf (stderr, "%s: Can't open %s: %s\n",
			cmdname, datafile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	if (fstat(dfd, &sbuf) < 0) {
		fprintf (stderr, "%s: Can't stat %s: %s\n",
			cmdname, datafile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	ptr = (unsigned char *)mmap(0, sbuf.st_size,
				    PROT_READ, MAP_SHARED, dfd, 0);
	if (ptr == (unsigned char *)MAP_FAILED) {
		fprintf (stderr, "%s: Can't read %s: %s\n",
			cmdname, datafile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	if (xflag) {
		unsigned char *p = NULL;
		/*
		 * XIP: do not append the image_header_t at the
		 * beginning of the file, but consume the space
		 * reserved for it.
		 */

		if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
			fprintf (stderr,
				"%s: Bad size: \"%s\" is too small for XIP\n",
				cmdname, datafile);
			exit (EXIT_FAILURE);
		}

		for (p=ptr; p < ptr+sizeof(image_header_t); p++) {
			if ( *p != 0xff ) {
				fprintf (stderr,
					"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
					cmdname, datafile);
				exit (EXIT_FAILURE);
			}
		}

		offset = sizeof(image_header_t);
	}

	size = sbuf.st_size - offset;
	if (write(ifd, ptr + offset, size) != size) {
		fprintf (stderr, "%s: Write error on %s: %s\n",
			cmdname, imagefile, strerror(errno));
		exit (EXIT_FAILURE);
	}

	if (pad && ((tail = size % 4) != 0)) {

		if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
			fprintf (stderr, "%s: Write error on %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}
	}

	(void) munmap((void *)ptr, sbuf.st_size);
	(void) close (dfd);
}

void
usage ()
{
	fprintf (stderr, "Usage: %s -l image\n"
			 "          -l ==> list image header information\n"
			 "       %s [-x] -A arch -O os -T type -C comp "
			 "-a addr -e ep -n name -d data_file[:data_file...] image\n",
		cmdname, cmdname);
	fprintf (stderr, "          -A ==> set architecture to 'arch'\n"
			 "          -O ==> set operating system to 'os'\n"
			 "          -T ==> set image type to 'type'\n"
			 "          -C ==> set compression type 'comp'\n"
			 "          -a ==> set load address to 'addr' (hex)\n"
			 "          -e ==> set entry point to 'ep' (hex)\n"
			 "          -n ==> set image name to 'name'\n"
			 "          -d ==> use image data from 'datafile'\n"
			 "          -x ==> set XIP (execute in place)\n"
		);
	exit (EXIT_FAILURE);
}

static void
print_header (image_header_t *hdr)
{
	time_t timestamp;
	uint32_t size;

	timestamp = (time_t)ntohl(hdr->ih_time);
	size = ntohl(hdr->ih_size);

	printf ("Image Name:   %.*s\n", IH_NMLEN, hdr->ih_name);
	printf ("Created:      %s", ctime(&timestamp));
	printf ("Image Type:   "); print_type(hdr);
	printf ("Data Size:    %d Bytes = %.2f kB = %.2f MB\n",
		size, (double)size / 1.024e3, (double)size / 1.048576e6 );
	printf ("Load Address: 0x%08X\n", ntohl(hdr->ih_load));
	printf ("Entry Point:  0x%08X\n", ntohl(hdr->ih_ep));

	if (hdr->ih_type == IH_TYPE_MULTI || hdr->ih_type == IH_TYPE_SCRIPT) {
		int i, ptrs;
		uint32_t pos;
		uint32_t *len_ptr = (uint32_t *) (
					(unsigned long)hdr + sizeof(image_header_t)
				);

		/* determine number of images first (to calculate image offsets) */
		for (i=0; len_ptr[i]; ++i)	/* null pointer terminates list */
			;
		ptrs = i;		/* null pointer terminates list */

		pos = sizeof(image_header_t) + ptrs * sizeof(long);
		printf ("Contents:\n");
		for (i=0; len_ptr[i]; ++i) {
			size = ntohl(len_ptr[i]);

			printf ("   Image %d: %8d Bytes = %4d kB = %d MB\n",
				i, size, size>>10, size>>20);
			if (hdr->ih_type == IH_TYPE_SCRIPT && i > 0) {
				/*
				 * the user may need to know offsets
				 * if planning to do something with
				 * multiple files
				 */
				printf ("    Offset = %08X\n", pos);
			}
			/* copy_file() will pad the first files to even word align */
			size += 3;
			size &= ~3;
			pos += size;
		}
	}
}


static void
print_type (image_header_t *hdr)
{
	printf ("%s %s %s (%s)\n",
		put_arch (hdr->ih_arch),
		put_os   (hdr->ih_os  ),
		put_type (hdr->ih_type),
		put_comp (hdr->ih_comp)
	);
}

static char *put_arch (int arch)
{
	return (put_table_entry(arch_name, "Unknown Architecture", arch));
}

static char *put_os (int os)
{
	return (put_table_entry(os_name, "Unknown OS", os));
}

static char *put_type (int type)
{
	return (put_table_entry(type_name, "Unknown Image", type));
}

static char *put_comp (int comp)
{
	return (put_table_entry(comp_name, "Unknown Compression", comp));
}

static char *put_table_entry (table_entry_t *table, char *msg, int type)
{
	for (; table->val>=0; ++table) {
		if (table->val == type)
			return (table->lname);
	}
	return (msg);
}

static int get_arch(char *name)
{
	return (get_table_entry(arch_name, "CPU", name));
}


static int get_comp(char *name)
{
	return (get_table_entry(comp_name, "Compression", name));
}


static int get_os (char *name)
{
	return (get_table_entry(os_name, "OS", name));
}


static int get_type(char *name)
{
	return (get_table_entry(type_name, "Image", name));
}

static int get_table_entry (table_entry_t *table, char *msg, char *name)
{
	table_entry_t *t;
	int first = 1;

	for (t=table; t->val>=0; ++t) {
		if (t->sname && strcasecmp(t->sname, name)==0)
			return (t->val);
	}
	fprintf (stderr, "\nInvalid %s Type - valid names are", msg);
	for (t=table; t->val>=0; ++t) {
		if (t->sname == NULL)
			continue;
		fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname);
		first = 0;
	}
	fprintf (stderr, "\n");
	return (-1);
}
Commit	Line	Data
5b1d7137	1	/*
0c852a28	2	* (C) Copyright 2000-2004
5b1d7137 WD	3	* DENX Software Engineering
	4	* Wolfgang Denk, wd@denx.de
	5	* All rights reserved.
0c852a28 WD	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
5b1d7137 WD	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
acf98e7f WD	57	#ifndef O_BINARY /* should be define'd on __WIN32__ */
	58	#define O_BINARY 0
	59	#endif
	60
5b1d7137 WD	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[] = {
466b7410 WD	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", },
c1a11c19 WD	89	{ IH_CPU_NIOS, "nios", "NIOS", },
c1a11c19 WD	90	{ IH_CPU_NIOS2, "nios2", "NIOS II", },
466b7410 WD	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", },
0afe519a	96	{ IH_CPU_BLACKFIN, "blackfin", "Blackfin", },
1a1b7374	97	{ IH_CPU_AVR32, "avr32", "AVR32", },
466b7410	98	{ -1, "", "", },
5b1d7137 WD	99	};
	100
	101	table_entry_t os_name[] = {
	102	{ IH_OS_INVALID, NULL, "Invalid OS", },
5b1d7137	103	{ IH_OS_4_4BSD, "4_4bsd", "4_4BSD", },
466b7410 WD	104	{ IH_OS_ARTOS, "artos", "ARTOS", },
466b7410 WD	105	{ IH_OS_DELL, "dell", "Dell", },
5b1d7137	106	{ IH_OS_ESIX, "esix", "Esix", },
466b7410	107	{ IH_OS_FREEBSD, "freebsd", "FreeBSD", },
5b1d7137	108	{ IH_OS_IRIX, "irix", "Irix", },
466b7410	109	{ IH_OS_LINUX, "linux", "Linux", },
5b1d7137	110	{ IH_OS_LYNXOS, "lynxos", "LynxOS", },
466b7410 WD	111	{ IH_OS_NCR, "ncr", "NCR", },
	112	{ IH_OS_NETBSD, "netbsd", "NetBSD", },
	113	{ IH_OS_OPENBSD, "openbsd", "OpenBSD", },
5b1d7137 WD	114	{ IH_OS_PSOS, "psos", "pSOS", },
5b1d7137 WD	115	{ IH_OS_QNX, "qnx", "QNX", },
d791b1dc	116	{ IH_OS_RTEMS, "rtems", "RTEMS", },
466b7410 WD	117	{ IH_OS_SCO, "sco", "SCO", },
	118	{ IH_OS_SOLARIS, "solaris", "Solaris", },
	119	{ IH_OS_SVR4, "svr4", "SVR4", },
	120	{ IH_OS_U_BOOT, "u-boot", "U-Boot", },
	121	{ IH_OS_VXWORKS, "vxworks", "VxWorks", },
5b1d7137 WD	122	{ -1, "", "", },
	123	};
	124
	125	table_entry_t type_name[] = {
	126	{ IH_TYPE_INVALID, NULL, "Invalid Image", },
466b7410 WD	127	{ IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image", },
466b7410 WD	128	{ IH_TYPE_FIRMWARE, "firmware", "Firmware", },
5b1d7137	129	{ IH_TYPE_KERNEL, "kernel", "Kernel Image", },
5b1d7137	130	{ IH_TYPE_MULTI, "multi", "Multi-File Image", },
466b7410	131	{ IH_TYPE_RAMDISK, "ramdisk", "RAMDisk Image", },
5b1d7137	132	{ IH_TYPE_SCRIPT, "script", "Script", },
466b7410	133	{ IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
87a449c8	134	{ IH_TYPE_FLATDT, "flat_dt", "Flat Device Tree", },
5b1d7137 WD	135	{ -1, "", "", },
	136	};
	137
	138	table_entry_t comp_name[] = {
	139	{ IH_COMP_NONE, "none", "uncompressed", },
5b1d7137	140	{ IH_COMP_BZIP2, "bzip2", "bzip2 compressed", },
466b7410	141	{ IH_COMP_GZIP, "gzip", "gzip compressed", },
5b1d7137 WD	142	{ -1, "", "", },
	143	};
	144
	145	static void copy_file (int, const char *, int);
	146	static void usage (void);
	147	static void print_header (image_header_t *);
	148	static void print_type (image_header_t *);
	149	static char put_table_entry (table_entry_t , char *, int);
	150	static char *put_arch (int);
	151	static char *put_type (int);
	152	static char *put_os (int);
	153	static char *put_comp (int);
	154	static int get_table_entry (table_entry_t , char , char *);
	155	static int get_arch(char *);
	156	static int get_comp(char *);
	157	static int get_os (char *);
	158	static int get_type(char *);
	159
	160
	161	char *datafile;
	162	char *imagefile;
	163
	164	int dflag = 0;
	165	int eflag = 0;
	166	int lflag = 0;
	167	int vflag = 0;
	168	int xflag = 0;
	169	int opt_os = IH_OS_LINUX;
	170	int opt_arch = IH_CPU_PPC;
	171	int opt_type = IH_TYPE_KERNEL;
	172	int opt_comp = IH_COMP_GZIP;
	173
	174	image_header_t header;
	175	image_header_t *hdr = &header;
	176
	177	int
	178	main (int argc, char **argv)
	179	{
	180	int ifd;
	181	uint32_t checksum;
	182	uint32_t addr;
	183	uint32_t ep;
	184	struct stat sbuf;
	185	unsigned char *ptr;
	186	char *name = "";
	187
	188	cmdname = *argv;
	189
	190	addr = ep = 0;
	191
	192	while (--argc > 0 && **++argv == '-') {
	193	while (++argv) {
	194	switch (**argv) {
	195	case 'l':
	196	lflag = 1;
	197	break;
	198	case 'A':
	199	if ((--argc <= 0) \|\|
	200	(opt_arch = get_arch(*++argv)) < 0)
	201	usage ();
	202	goto NXTARG;
	203	case 'C':
	204	if ((--argc <= 0) \|\|
	205	(opt_comp = get_comp(*++argv)) < 0)
206	usage ();
207	goto NXTARG;
208	case 'O':
209	if ((--argc <= 0) \|\|
210	(opt_os = get_os(*++argv)) < 0)
211	usage ();
212	goto NXTARG;
213	case 'T':
214	if ((--argc <= 0) \|\|
215	(opt_type = get_type(*++argv)) < 0)
216	usage ();
217	goto NXTARG;
218
219	case 'a':
220	if (--argc <= 0)
221	usage ();
222	addr = strtoul (++argv, (char *)&ptr, 16);
223	if (*ptr) {
224	fprintf (stderr,
225	"%s: invalid load address %s\n",
226	cmdname, *argv);
227	exit (EXIT_FAILURE);
228	}
229	goto NXTARG;
230	case 'd':
231	if (--argc <= 0)
232	usage ();
233	datafile = *++argv;
234	dflag = 1;
235	goto NXTARG;
236	case 'e':
237	if (--argc <= 0)
238	usage ();
239	ep = strtoul (++argv, (char *)&ptr, 16);
240	if (*ptr) {
241	fprintf (stderr,
242	"%s: invalid entry point %s\n",
243	cmdname, *argv);
244	exit (EXIT_FAILURE);
245	}
246	eflag = 1;
247	goto NXTARG;
248	case 'n':
249	if (--argc <= 0)
250	usage ();
251	name = *++argv;
252	goto NXTARG;
253	case 'v':
254	vflag++;
255	break;
256	case 'x':
257	xflag++;
258	break;
259	default:
260	usage ();
261	}
262	}
263	NXTARG: ;
264	}
265
266	if ((argc != 1) \|\| ((lflag ^ dflag) == 0))
267	usage();
268
269	if (!eflag) {
270	ep = addr;
271	/* If XIP, entry point must be after the U-Boot header */
272	if (xflag)
273	ep += sizeof(image_header_t);
274	}
275
276	/*
277	* If XIP, ensure the entry point is equal to the load address plus
278	* the size of the U-Boot header.
279	*/
280	if (xflag) {
281	if (ep != addr + sizeof(image_header_t)) {
3577d3a3 WD	282	fprintf (stderr,
3577d3a3 WD	283	"%s: For XIP, the entry point must be the load addr + %lu\n",
a6c7ad2f WD	284	cmdname,
a6c7ad2f WD	285	(unsigned long)sizeof(image_header_t));
5b1d7137 WD	286	exit (EXIT_FAILURE);
	287	}
	288	}
	289
	290	imagefile = *argv;
	291
	292	if (lflag) {
ef1464cc	293	ifd = open(imagefile, O_RDONLY\|O_BINARY);
5b1d7137	294	} else {
5b1d7137	295	ifd = open(imagefile, O_RDWR\|O_CREAT\|O_TRUNC\|O_BINARY, 0666);
5b1d7137 WD	296	}
	297
	298	if (ifd < 0) {
	299	fprintf (stderr, "%s: Can't open %s: %s\n",
	300	cmdname, imagefile, strerror(errno));
	301	exit (EXIT_FAILURE);
	302	}
	303
	304	if (lflag) {
	305	int len;
	306	char *data;
	307	/*
	308	* list header information of existing image
	309	*/
	310	if (fstat(ifd, &sbuf) < 0) {
	311	fprintf (stderr, "%s: Can't stat %s: %s\n",
	312	cmdname, imagefile, strerror(errno));
	313	exit (EXIT_FAILURE);
	314	}
	315
5bb226e8	316	if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
5b1d7137 WD	317	fprintf (stderr,
	318	"%s: Bad size: \"%s\" is no valid image\n",
	319	cmdname, imagefile);
	320	exit (EXIT_FAILURE);
	321	}
	322
	323	ptr = (unsigned char *)mmap(0, sbuf.st_size,
	324	PROT_READ, MAP_SHARED, ifd, 0);
	325	if ((caddr_t)ptr == (caddr_t)-1) {
	326	fprintf (stderr, "%s: Can't read %s: %s\n",
	327	cmdname, imagefile, strerror(errno));
	328	exit (EXIT_FAILURE);
	329	}
	330
	331	/*
	332	* create copy of header so that we can blank out the
	333	* checksum field for checking - this can't be done
	334	* on the PROT_READ mapped data.
	335	*/
	336	memcpy (hdr, ptr, sizeof(image_header_t));
	337
	338	if (ntohl(hdr->ih_magic) != IH_MAGIC) {
	339	fprintf (stderr,
	340	"%s: Bad Magic Number: \"%s\" is no valid image\n",
	341	cmdname, imagefile);
	342	exit (EXIT_FAILURE);
	343	}
	344
	345	data = (char *)hdr;
	346	len = sizeof(image_header_t);
	347
	348	checksum = ntohl(hdr->ih_hcrc);
	349	hdr->ih_hcrc = htonl(0); /* clear for re-calculation */
	350
	351	if (crc32 (0, data, len) != checksum) {
	352	fprintf (stderr,
3577d3a3 WD	353	"%s: ERROR: \"%s\" has bad header checksum!\n",
	354	cmdname, imagefile);
	355	exit (EXIT_FAILURE);
5b1d7137 WD	356	}
	357
	358	data = (char *)(ptr + sizeof(image_header_t));
	359	len = sbuf.st_size - sizeof(image_header_t) ;
	360
	361	if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
	362	fprintf (stderr,
3577d3a3 WD	363	"%s: ERROR: \"%s\" has corrupted data!\n",
	364	cmdname, imagefile);
	365	exit (EXIT_FAILURE);
5b1d7137 WD	366	}
	367
	368	/* for multi-file images we need the data part, too */
	369	print_header ((image_header_t *)ptr);
	370
	371	(void) munmap((void *)ptr, sbuf.st_size);
	372	(void) close (ifd);
	373
	374	exit (EXIT_SUCCESS);
	375	}
	376
	377	/*
	378	* Must be -w then:
	379	*
	380	* write dummy header, to be fixed later
	381	*/
	382	memset (hdr, 0, sizeof(image_header_t));
	383
	384	if (write(ifd, hdr, sizeof(image_header_t)) != sizeof(image_header_t)) {
	385	fprintf (stderr, "%s: Write error on %s: %s\n",
	386	cmdname, imagefile, strerror(errno));
	387	exit (EXIT_FAILURE);
	388	}
	389
	390	if (opt_type == IH_TYPE_MULTI \|\| opt_type == IH_TYPE_SCRIPT) {
	391	char *file = datafile;
3bb66806	392	uint32_t size;
5b1d7137 WD	393
	394	for (;;) {
	395	char *sep = NULL;
	396
	397	if (file) {
	398	if ((sep = strchr(file, ':')) != NULL) {
	399	*sep = '\0';
	400	}
	401
	402	if (stat (file, &sbuf) < 0) {
	403	fprintf (stderr, "%s: Can't stat %s: %s\n",
	404	cmdname, file, strerror(errno));
	405	exit (EXIT_FAILURE);
	406	}
	407	size = htonl(sbuf.st_size);
	408	} else {
	409	size = 0;
	410	}
	411
	412	if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
	413	fprintf (stderr, "%s: Write error on %s: %s\n",
	414	cmdname, imagefile, strerror(errno));
	415	exit (EXIT_FAILURE);
	416	}
	417
	418	if (!file) {
	419	break;
	420	}
	421
	422	if (sep) {
	423	*sep = ':';
	424	file = sep + 1;
	425	} else {
	426	file = NULL;
	427	}
	428	}
	429
	430	file = datafile;
	431
	432	for (;;) {
	433	char *sep = strchr(file, ':');
	434	if (sep) {
	435	*sep = '\0';
	436	copy_file (ifd, file, 1);
	437	*sep++ = ':';
	438	file = sep;
	439	} else {
	440	copy_file (ifd, file, 0);
	441	break;
	442	}
	443	}
	444	} else {
	445	copy_file (ifd, datafile, 0);
	446	}
	447
	448	/* We're a bit of paranoid */
147031ae	449	#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
5b1d7137 WD	450	(void) fdatasync (ifd);
	451	#else
	452	(void) fsync (ifd);
	453	#endif
	454
	455	if (fstat(ifd, &sbuf) < 0) {
	456	fprintf (stderr, "%s: Can't stat %s: %s\n",
	457	cmdname, imagefile, strerror(errno));
	458	exit (EXIT_FAILURE);
	459	}
	460
	461	ptr = (unsigned char *)mmap(0, sbuf.st_size,
	462	PROT_READ\|PROT_WRITE, MAP_SHARED, ifd, 0);
	463	if (ptr == (unsigned char *)MAP_FAILED) {
	464	fprintf (stderr, "%s: Can't map %s: %s\n",
	465	cmdname, imagefile, strerror(errno));
	466	exit (EXIT_FAILURE);
	467	}
	468
	469	hdr = (image_header_t *)ptr;
	470
	471	checksum = crc32 (0,
	472	(const char *)(ptr + sizeof(image_header_t)),
	473	sbuf.st_size - sizeof(image_header_t)
	474	);
	475
	476	/* Build new header */
	477	hdr->ih_magic = htonl(IH_MAGIC);
	478	hdr->ih_time = htonl(sbuf.st_mtime);
	479	hdr->ih_size = htonl(sbuf.st_size - sizeof(image_header_t));
	480	hdr->ih_load = htonl(addr);
	481	hdr->ih_ep = htonl(ep);
	482	hdr->ih_dcrc = htonl(checksum);
	483	hdr->ih_os = opt_os;
	484	hdr->ih_arch = opt_arch;
	485	hdr->ih_type = opt_type;
	486	hdr->ih_comp = opt_comp;
	487
	488	strncpy((char *)hdr->ih_name, name, IH_NMLEN);
	489
	490	checksum = crc32(0,(const char *)hdr,sizeof(image_header_t));
	491
	492	hdr->ih_hcrc = htonl(checksum);
	493
	494	print_header (hdr);
	495
	496	(void) munmap((void *)ptr, sbuf.st_size);
	497
	498	/* We're a bit of paranoid */
147031ae	499	#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
5b1d7137 WD	500	(void) fdatasync (ifd);
	501	#else
	502	(void) fsync (ifd);
	503	#endif
	504
	505	if (close(ifd)) {
	506	fprintf (stderr, "%s: Write error on %s: %s\n",
	507	cmdname, imagefile, strerror(errno));
	508	exit (EXIT_FAILURE);
	509	}
	510
	511	exit (EXIT_SUCCESS);
	512	}
	513
	514	static void
	515	copy_file (int ifd, const char *datafile, int pad)
	516	{
	517	int dfd;
	518	struct stat sbuf;
	519	unsigned char *ptr;
	520	int tail;
	521	int zero = 0;
	522	int offset = 0;
	523	int size;
	524
	525	if (vflag) {
	526	fprintf (stderr, "Adding Image %s\n", datafile);
	527	}
	528
ef1464cc	529	if ((dfd = open(datafile, O_RDONLY\|O_BINARY)) < 0) {
5b1d7137 WD	530	fprintf (stderr, "%s: Can't open %s: %s\n",
	531	cmdname, datafile, strerror(errno));
	532	exit (EXIT_FAILURE);
	533	}
	534
	535	if (fstat(dfd, &sbuf) < 0) {
	536	fprintf (stderr, "%s: Can't stat %s: %s\n",
	537	cmdname, datafile, strerror(errno));
	538	exit (EXIT_FAILURE);
	539	}
	540
	541	ptr = (unsigned char *)mmap(0, sbuf.st_size,
	542	PROT_READ, MAP_SHARED, dfd, 0);
	543	if (ptr == (unsigned char *)MAP_FAILED) {
	544	fprintf (stderr, "%s: Can't read %s: %s\n",
	545	cmdname, datafile, strerror(errno));
	546	exit (EXIT_FAILURE);
	547	}
	548
	549	if (xflag) {
	550	unsigned char *p = NULL;
	551	/*
	552	* XIP: do not append the image_header_t at the
	553	* beginning of the file, but consume the space
	554	* reserved for it.
	555	*/
	556
5bb226e8	557	if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
5b1d7137 WD	558	fprintf (stderr,
	559	"%s: Bad size: \"%s\" is too small for XIP\n",
	560	cmdname, datafile);
	561	exit (EXIT_FAILURE);
	562	}
	563
	564	for (p=ptr; p < ptr+sizeof(image_header_t); p++) {
	565	if ( *p != 0xff ) {
	566	fprintf (stderr,
	567	"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
	568	cmdname, datafile);
	569	exit (EXIT_FAILURE);
	570	}
	571	}
	572
	573	offset = sizeof(image_header_t);
	574	}
	575
	576	size = sbuf.st_size - offset;
	577	if (write(ifd, ptr + offset, size) != size) {
	578	fprintf (stderr, "%s: Write error on %s: %s\n",
	579	cmdname, imagefile, strerror(errno));
	580	exit (EXIT_FAILURE);
	581	}
	582
	583	if (pad && ((tail = size % 4) != 0)) {
	584
	585	if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
	586	fprintf (stderr, "%s: Write error on %s: %s\n",
	587	cmdname, imagefile, strerror(errno));
	588	exit (EXIT_FAILURE);
	589	}
	590	}
	591
	592	(void) munmap((void *)ptr, sbuf.st_size);
	593	(void) close (dfd);
	594	}
	595
	596	void
	597	usage ()
	598	{
	599	fprintf (stderr, "Usage: %s -l image\n"
	600	" -l ==> list image header information\n"
9d5028c2	601	" %s [-x] -A arch -O os -T type -C comp "
5b1d7137 WD	602	"-a addr -e ep -n name -d data_file[:data_file...] image\n",
	603	cmdname, cmdname);
	604	fprintf (stderr, " -A ==> set architecture to 'arch'\n"
	605	" -O ==> set operating system to 'os'\n"
	606	" -T ==> set image type to 'type'\n"
	607	" -C ==> set compression type 'comp'\n"
	608	" -a ==> set load address to 'addr' (hex)\n"
	609	" -e ==> set entry point to 'ep' (hex)\n"
	610	" -n ==> set image name to 'name'\n"
	611	" -d ==> use image data from 'datafile'\n"
	612	" -x ==> set XIP (execute in place)\n"
	613	);
	614	exit (EXIT_FAILURE);
	615	}
	616
	617	static void
	618	print_header (image_header_t *hdr)
	619	{
	620	time_t timestamp;
	621	uint32_t size;
	622
	623	timestamp = (time_t)ntohl(hdr->ih_time);
	624	size = ntohl(hdr->ih_size);
	625
	626	printf ("Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
	627	printf ("Created: %s", ctime(&timestamp));
	628	printf ("Image Type: "); print_type(hdr);
	629	printf ("Data Size: %d Bytes = %.2f kB = %.2f MB\n",
	630	size, (double)size / 1.024e3, (double)size / 1.048576e6 );
bdccc4fe WD	631	printf ("Load Address: 0x%08X\n", ntohl(hdr->ih_load));
bdccc4fe WD	632	printf ("Entry Point: 0x%08X\n", ntohl(hdr->ih_ep));
5b1d7137 WD	633
	634	if (hdr->ih_type == IH_TYPE_MULTI \|\| hdr->ih_type == IH_TYPE_SCRIPT) {
	635	int i, ptrs;
	636	uint32_t pos;
0dab03ba	637	uint32_t len_ptr = (uint32_t ) (
5b1d7137 WD	638	(unsigned long)hdr + sizeof(image_header_t)
	639	);
	640
	641	/* determine number of images first (to calculate image offsets) */
	642	for (i=0; len_ptr[i]; ++i) /* null pointer terminates list */
	643	;
	644	ptrs = i; /* null pointer terminates list */
	645
	646	pos = sizeof(image_header_t) + ptrs * sizeof(long);
	647	printf ("Contents:\n");
	648	for (i=0; len_ptr[i]; ++i) {
	649	size = ntohl(len_ptr[i]);
	650
	651	printf (" Image %d: %8d Bytes = %4d kB = %d MB\n",
	652	i, size, size>>10, size>>20);
	653	if (hdr->ih_type == IH_TYPE_SCRIPT && i > 0) {
	654	/*
	655	* the user may need to know offsets
	656	* if planning to do something with
	657	* multiple files
	658	*/
bdccc4fe	659	printf (" Offset = %08X\n", pos);
5b1d7137 WD	660	}
	661	/* copy_file() will pad the first files to even word align */
	662	size += 3;
	663	size &= ~3;
	664	pos += size;
	665	}
	666	}
	667	}
	668
	669
	670	static void
	671	print_type (image_header_t *hdr)
	672	{
	673	printf ("%s %s %s (%s)\n",
	674	put_arch (hdr->ih_arch),
	675	put_os (hdr->ih_os ),
	676	put_type (hdr->ih_type),
	677	put_comp (hdr->ih_comp)
	678	);
	679	}
	680
	681	static char *put_arch (int arch)
	682	{
	683	return (put_table_entry(arch_name, "Unknown Architecture", arch));
	684	}
	685
	686	static char *put_os (int os)
	687	{
	688	return (put_table_entry(os_name, "Unknown OS", os));
	689	}
	690
	691	static char *put_type (int type)
	692	{
	693	return (put_table_entry(type_name, "Unknown Image", type));
	694	}
	695
	696	static char *put_comp (int comp)
	697	{
	698	return (put_table_entry(comp_name, "Unknown Compression", comp));
	699	}
	700
	701	static char put_table_entry (table_entry_t table, char *msg, int type)
	702	{
	703	for (; table->val>=0; ++table) {
	704	if (table->val == type)
	705	return (table->lname);
	706	}
	707	return (msg);
	708	}
	709
	710	static int get_arch(char *name)
	711	{
	712	return (get_table_entry(arch_name, "CPU", name));
	713	}
	714
	715
	716	static int get_comp(char *name)
	717	{
	718	return (get_table_entry(comp_name, "Compression", name));
	719	}
	720
	721
	722	static int get_os (char *name)
	723	{
724	return (get_table_entry(os_name, "OS", name));
725	}
726
727
728	static int get_type(char *name)
729	{
730	return (get_table_entry(type_name, "Image", name));
731	}
732
733	static int get_table_entry (table_entry_t table, char msg, char *name)
734	{
735	table_entry_t *t;
736	int first = 1;
737
738	for (t=table; t->val>=0; ++t) {
739	if (t->sname && strcasecmp(t->sname, name)==0)
740	return (t->val);
741	}
742	fprintf (stderr, "\nInvalid %s Type - valid names are", msg);
743	for (t=table; t->val>=0; ++t) {
744	if (t->sname == NULL)
745	continue;
746	fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname);
747	first = 0;
748	}
749	fprintf (stderr, "\n");
750	return (-1);
751	}