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wm_tool.c
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wm_tool.c
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#include <time.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <dirent.h>
#include <unistd.h>
#include <stdarg.h>
#ifdef __MINGW32__
#include <windows.h>
#else
#include <signal.h>
#include <pthread.h>
#include <termios.h>
#include <sys/ioctl.h>
#endif
#define WM_TOOL_PATH_MAX 256
#define WM_TOOL_ONCE_READ_LEN 1024
#define WM_TOOL_RUN_IMG_HEADER_LEN 0x100
#define WM_TOOL_SECBOOT_IMG_ADDR (0x2100)
#define WM_TOOL_SECBOOT_HEADER_LEN (0x100)
#define WM_TOOL_SECBOOT_HEADER_POS (WM_TOOL_SECBOOT_IMG_ADDR - WM_TOOL_SECBOOT_HEADER_LEN)
//#define WM_TOOL_SECBOOT_IMG_AREA_TOTAL_LEN 9216//(56 * 1024)
#define WM_TOOL_IMG_HEAD_MAGIC_NO (0xA0FFFF9F)
#define WM_TOOL_DEFAULT_BAUD_RATE 115200
#define WM_TOOL_DOWNLOAD_TIMEOUT_SEC (60 * 1)
#define WM_TOOL_USE_1K_XMODEM 1 /* 1 for use 1k_xmodem 0 for xmodem */
#define WM_TOOL_IMAGE_VERSION_LEN 16
/* Xmodem Frame form: <SOH><blk #><255-blk #><--128 data bytes--><CRC hi><CRC lo> */
#define XMODEM_SOH 0x01
#define XMODEM_STX 0x02
#define XMODEM_EOT 0x04
#define XMODEM_ACK 0x06
#define XMODEM_NAK 0x15
#define XMODEM_CAN 0x18
#define XMODEM_CRC_CHR 'C'
#define XMODEM_CRC_SIZE 2 /* Crc_High Byte + Crc_Low Byte */
#define XMODEM_FRAME_ID_SIZE 2 /* Frame_Id + 255-Frame_Id */
#define XMODEM_DATA_SIZE_SOH 128 /* for Xmodem protocol */
#define XMODEM_DATA_SIZE_STX 1024 /* for 1K xmodem protocol */
#if (WM_TOOL_USE_1K_XMODEM)
#define XMODEM_DATA_SIZE XMODEM_DATA_SIZE_STX
#define XMODEM_HEAD XMODEM_STX
#else
#define XMODEM_DATA_SIZE XMODEM_DATA_SIZE_SOH
#define XMODEM_HEAD XMODEM_SOH
#endif
#ifdef WM_DEBUG
#define WM_TOOL_DBG_PRINT wm_tool_printf
#else
#define WM_TOOL_DBG_PRINT(...)
#endif
typedef enum {
WM_TOOL_DL_ACTION_NONE = 0,
WM_TOOL_DL_ACTION_AT,
WM_TOOL_DL_ACTION_RTS
} wm_tool_dl_action_e;
typedef enum {
WM_TOOL_DL_ERASE_NONE = 0,
WM_TOOL_DL_ERASE_ALL
} wm_tool_dl_erase_e;
typedef enum {
WM_TOOL_DL_TYPE_IMAGE = 0,
WM_TOOL_DL_TYPE_FLS
} wm_tool_dl_type_e;
typedef enum {
WM_TOOL_LAYOUT_TYPE_1M = 0,
WM_TOOL_LAYOUT_TYPE_2M = 3
} wm_tool_layout_type_e;
typedef enum {
WM_TOOL_ZIP_TYPE_UNCOMPRESS = 0,
WM_TOOL_ZIP_TYPE_COMPRESS
} wm_tool_zip_type_e;
typedef enum {
WM_TOOL_CRC32_REFLECT_OUTPUT = 1,
WM_TOOL_CRC32_REFLECT_INPUT = 2
} wm_tool_crc32_reflect_e;
typedef enum {
WM_TOOL_SHOW_LOG_NONE = 0,
WM_TOOL_SHOW_LOG_STR,
WM_TOOL_SHOW_LOG_HEX
} wm_tool_show_log_e;
typedef struct {
unsigned int magic_no;
unsigned short img_type;
unsigned short zip_type;
unsigned int run_img_addr;
unsigned int run_img_len;
unsigned int img_header_addr;
unsigned int upgrade_img_addr;
unsigned int run_org_checksum;
unsigned int upd_no;
unsigned char ver[WM_TOOL_IMAGE_VERSION_LEN];
unsigned int reserved0;
unsigned int reserved1;
unsigned int next_boot;
unsigned int hd_checksum;
} wm_tool_firmware_booter_t;
const static char *wm_tool_version = "1.0.4";
static int wm_tool_show_usage = 0;
static int wm_tool_list_com = 0;
static int wm_tool_show_ver = 0;
static char wm_tool_serial_path[WM_TOOL_PATH_MAX] = "/dev/ttyS0";
static unsigned int wm_tool_download_serial_rate = WM_TOOL_DEFAULT_BAUD_RATE;
static unsigned int wm_tool_normal_serial_rate = WM_TOOL_DEFAULT_BAUD_RATE;
static wm_tool_dl_action_e wm_tool_dl_action = WM_TOOL_DL_ACTION_NONE;
static wm_tool_dl_erase_e wm_tool_dl_erase = WM_TOOL_DL_ERASE_NONE;
static wm_tool_dl_type_e wm_tool_dl_type = WM_TOOL_DL_TYPE_IMAGE;
static char *wm_tool_download_image = NULL;
static char *wm_tool_input_binary = NULL;
static char *wm_tool_output_image = NULL;
static char *wm_tool_secboot_image = NULL;
static unsigned int wm_tool_src_binary_len = 0;
static unsigned int wm_tool_src_binary_crc = 0;
static int wm_tool_is_debug = 0;
static char wm_tool_image_version[WM_TOOL_IMAGE_VERSION_LEN];
static wm_tool_layout_type_e wm_tool_image_type = WM_TOOL_LAYOUT_TYPE_1M;
static wm_tool_zip_type_e wm_tool_zip_type = WM_TOOL_ZIP_TYPE_COMPRESS;
static unsigned int wm_tool_upd_addr = 0x8090000;
static unsigned int wm_tool_run_addr = 0x8002400;
static unsigned int wm_tool_image_header = 0x8002000;
static unsigned int wm_tool_next_image_header = 0x0;
static unsigned int wm_tool_image_upd_no = 0x0;
static unsigned int wm_tool_file_crc = 0xFFFFFFFF;
static wm_tool_show_log_e wm_tool_show_log_type = WM_TOOL_SHOW_LOG_NONE;
#ifdef __MINGW32__
#ifndef CBR_2000000
#define CBR_2000000 2000000
#endif
#ifndef CBR_1000000
#define CBR_1000000 1000000
#endif
#ifndef CBR_921600
#define CBR_921600 921600
#endif
#ifndef CBR_460800
#define CBR_460800 460800
#endif
static DWORD wm_tool_uart_block = 0;
static HANDLE wm_tool_uart_handle = NULL;
const static int wm_tool_uart_speed_array[] = {CBR_2000000, CBR_1000000, CBR_921600, CBR_460800, CBR_115200, CBR_38400,
CBR_19200, CBR_9600, CBR_4800, CBR_2400, CBR_1200};
#else /* __MINGW32__ */
#ifndef B2000000
#define B2000000 2000000
#endif
#ifndef B1000000
#define B1000000 1000000
#endif
#ifndef B921600
#define B921600 921600
#endif
#ifndef B460800
#define B460800 460800
#endif
static int wm_tool_uart_fd = -1;
static struct termios wm_tool_saved_serial_cfg;
const static int wm_tool_uart_speed_array[] = {B2000000, B1000000, B921600, B460800, B115200, B38400,
B19200, B9600, B4800, B2400, B1200};
#endif /* __MINGW32__ */
const static int wm_tool_uart_name_array[] = {2000000, 1000000, 921600, 460800, 115200, 38400,
19200, 9600, 4800, 2400, 1200};
const static unsigned char wm_tool_chip_cmd_b115200[] = {0x21, 0x0a, 0x00, 0x97, 0x4b, 0x31, 0x00, 0x00, 0x00, 0x00, 0xc2, 0x01, 0x00};
const static unsigned char wm_tool_chip_cmd_b460800[] = {0x21, 0x0a, 0x00, 0x07, 0x00, 0x31, 0x00, 0x00, 0x00, 0x00, 0x08, 0x07, 0x00};
const static unsigned char wm_tool_chip_cmd_b921600[] = {0x21, 0x0a, 0x00, 0x5d, 0x50, 0x31, 0x00, 0x00, 0x00, 0x00, 0x10, 0x0e, 0x00};
const static unsigned char wm_tool_chip_cmd_b1000000[] = {0x21, 0x0a, 0x00, 0x5e, 0x3d, 0x31, 0x00, 0x00, 0x00, 0x40, 0x42, 0x0f, 0x00};
const static unsigned char wm_tool_chip_cmd_b2000000[] = {0x21, 0x0a, 0x00, 0xef, 0x2a, 0x31, 0x00, 0x00, 0x00, 0x80, 0x84, 0x1e, 0x00};
const static unsigned char wm_tool_chip_cmd_get_mac[] = {0x21, 0x06, 0x00, 0xea, 0x2d, 0x38, 0x00, 0x00, 0x00};
const static unsigned char wm_tool_chip_cmd_reset[] = {0x21, 0x06, 0x00, 0xc7, 0x7c, 0x3f, 0x00, 0x00, 0x00};
static const unsigned int wm_tool_crc32_tab[] = {0x00000000L, 0x77073096L, 0xee0e612cL,
0x990951baL, 0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L,
0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL,
0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L,
0xf3b97148L, 0x84be41deL, 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L,
0x83d385c7L, 0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL,
0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L,
0x4c69105eL, 0xd56041e4L, 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L,
0xd20d85fdL, 0xa50ab56bL, 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L,
0xacbcf940L, 0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L,
0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L,
0x56b3c423L, 0xcfba9599L, 0xb8bda50fL, 0x2802b89eL, 0x5f058808L,
0xc60cd9b2L, 0xb10be924L, 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL,
0xb6662d3dL, 0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL,
0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L,
0x0f00f934L, 0x9609a88eL, 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL,
0x91646c97L, 0xe6635c01L, 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L,
0xf262004eL, 0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L,
0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL,
0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL,
0xa3bc0074L, 0xd4bb30e2L, 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL,
0xd3d6f4fbL, 0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L,
0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL,
0x270241aaL, 0xbe0b1010L, 0xc90c2086L, 0x5768b525L, 0x206f85b3L,
0xb966d409L, 0xce61e49fL, 0x5edef90eL, 0x29d9c998L, 0xb0d09822L,
0xc7d7a8b4L, 0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL,
0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL, 0xead54739L,
0x9dd277afL, 0x04db2615L, 0x73dc1683L, 0xe3630b12L, 0x94643b84L,
0x0d6d6a3eL, 0x7a6a5aa8L, 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L,
0x7d079eb1L, 0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL,
0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L,
0x89d32be0L, 0x10da7a5aL, 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L,
0x17b7be43L, 0x60b08ed5L, 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L,
0x4fdff252L, 0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL,
0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L, 0xdf60efc3L,
0xa867df55L, 0x316e8eefL, 0x4669be79L, 0xcb61b38cL, 0xbc66831aL,
0x256fd2a0L, 0x5268e236L, 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L,
0x5505262fL, 0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L,
0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L,
0xec63f226L, 0x756aa39cL, 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL,
0x72076785L, 0x05005713L, 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL,
0x0cb61b38L, 0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L,
0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL,
0xf6b9265bL, 0x6fb077e1L, 0x18b74777L, 0x88085ae6L, 0xff0f6a70L,
0x66063bcaL, 0x11010b5cL, 0x8f659effL, 0xf862ae69L, 0x616bffd3L,
0x166ccf45L, 0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L,
0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL,
0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L,
0x47b2cf7fL, 0x30b5ffe9L, 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L,
0x24b4a3a6L, 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL,
0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L,
0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL};
static void wm_tool_signal_proc_entry(void);
static void wm_tool_stdin_to_uart(void);
/* ============================ zlib gzip ================================== */
#define ALLOC(size) zcalloc((voidp)0, 1, size)
#define TRYFREE(p) {if (p) zcfree((voidp)0, p);}
#define BINARY 0
#define ASCII 1
#define UNKNOWN 2
#define STORED_BLOCK 0
#define STATIC_TREES 1
#define DYN_TREES 2
#define REP_3_6 16
#define REPZ_3_10 17
#define REPZ_11_138 18
#define MAX_BL_BITS 7
#define BASE 65521 /* largest prime smaller than 65536 */
#define NMAX 5552
#define DO1(buf) {s1 += *buf++; s2 += s1;}
#define DO2(buf) DO1(buf); DO1(buf);
#define DO4(buf) DO2(buf); DO2(buf);
#define DO8(buf) DO4(buf); DO4(buf);
#define DO16(buf) DO8(buf); DO8(buf);
#define Z_OK 0
#define Z_STREAM_END 1
#define Z_ERRNO (-1)
#define Z_STREAM_ERROR (-2)
#define Z_DATA_ERROR (-3)
#define Z_MEM_ERROR (-4)
#define Z_BUF_ERROR (-5)
#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */
#define Z_BEST_SPEED 1
#define Z_BEST_COMPRESSION 9
#define Z_DEFAULT_COMPRESSION (-1)
#define DEFLATED 8
#ifndef WBITS
# define WBITS 15 /* 32K window */
#endif
#ifndef MEM_LEVEL
# define MEM_LEVEL 8
#endif
#define Z_BUFSIZE 4096
#define GZ_MAGIC_1 0x1f
#define GZ_MAGIC_2 0x8b
#ifndef OS_CODE
# define OS_CODE 0x03 /* assume Unix */
#endif
#ifndef TOO_FAR
# define TOO_FAR 4096
#endif
#define Z_NO_FLUSH 0
#define Z_FINISH 4
#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */
#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
#define COMMENT 0x10 /* bit 4 set: file comment present */
#define RESERVED 0xE0 /* bits 5..7: reserved */
#define LENGTH_CODES 29/* number of length codes, not counting the special END_BLOCK code */
#define LITERALS 256/* number of literal bytes 0..255 */
#define L_CODES (LITERALS+1+LENGTH_CODES)/* number of Literal or Length codes, including the END_BLOCK code */
#define D_CODES 30/* number of distance codes */
#define BL_CODES 19/* number of codes used to transfer the bit lengths */
#define HEAP_SIZE (2*L_CODES+1)/* maximum heap size */
#define END_BLOCK 256
#define MAX_BITS 15
#define MAX_MEM_LEVEL 9
#define MIN_MATCH 3
#define MAX_MATCH 258
#define Z_UNKNOWN 2
#define INIT_STATE 42
#define BUSY_STATE 113
#define FINISH_STATE 666
#define NIL 0
#define Z_FILTERED 1
#define Z_HUFFMAN_ONLY 2
#define Z_DEFAULT_STRATEGY 0
#define SMALLEST 1
#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
#define ERR_RETURN(strm,err) return (strm->msg=z_errmsg[1-err], err)
#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);}
#define put_short(s, w) { \
put_byte(s, (uch)((w) & 0xff)); \
put_byte(s, (uch)((ush)(w) >> 8)); \
}
#define INSERT_STRING(s, str, match_head) \
(UPDATE_HASH(s, s->ins_h, s->window[(str) + MIN_MATCH-1]), \
s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \
s->head[s->ins_h] = (str))
#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD)
#define check_match(s, start, match, length)
#define d_code(dist) \
((dist) < 256 ? dist_code[dist] : dist_code[256+((dist)>>7)])
#define FLUSH_BLOCK_ONLY(s, eof) { \
ct_flush_block(s, (s->block_start >= 0L ? \
(char*)&s->window[(unsigned)s->block_start] : \
(char*)Z_NULL), (long)s->strstart - s->block_start, (eof)); \
s->block_start = s->strstart; \
flush_pending(s->strm); \
}
#define FLUSH_BLOCK(s, eof) { \
FLUSH_BLOCK_ONLY(s, eof); \
if (s->strm->avail_out == 0) return 1; \
}
#define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
#define MAX(a,b) (a >= b ? a : b)
#define Buf_size (8 * 2*sizeof(char))
#define smaller(tree, n, m, depth) \
(tree[n].Freq < tree[m].Freq || \
(tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
#define pqremove(s, tree, top) \
{\
top = s->heap[SMALLEST]; \
s->heap[SMALLEST] = s->heap[s->heap_len--]; \
pqdownheap(s, tree, SMALLEST); \
}
#ifndef local
# define local static
#endif
#ifndef __P
#define __P(args) args
#endif
#define ZALLOC(strm, items, size) \
(*((strm)->zalloc))((strm)->opaque, (items), (size))
#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidp)(addr))
#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
#define Assert(cond,msg)
#ifndef Byte
typedef unsigned char Byte; /* 8 bits */
#endif
#ifndef uInt
typedef unsigned int uInt; /* may be 16 or 32 bits */
#endif
#ifndef uLong
typedef unsigned long uLong; /* 32 bits or more */
#endif
typedef Byte *voidp;
typedef voidp gzFile;
typedef unsigned char uch;
typedef unsigned long ulg;
typedef unsigned short ush;
typedef ush Pos;
typedef unsigned IPos;
typedef voidp (*alloc_func) __P((voidp opaque, uInt items, uInt size));
typedef void (*free_func) __P((voidp opaque, voidp address));
typedef uLong (*check_func) __P((uLong check, Byte *buf, uInt len));
typedef struct z_stream_s {
Byte *next_in; /* next input byte */
uInt avail_in; /* number of bytes available at next_in */
uLong total_in; /* total nb of input bytes read so far */
Byte *next_out; /* next output byte should be put there */
uInt avail_out; /* remaining free space at next_out */
uLong total_out; /* total nb of bytes output so far */
char *msg; /* last error message, NULL if no error */
struct internal_state *state; /* not visible by applications */
alloc_func zalloc; /* used to allocate the internal state */
free_func zfree; /* used to free the internal state */
voidp opaque; /* private data object passed to zalloc and zfree */
Byte data_type; /* best guess about the data type: ascii or binary */
} z_stream;
typedef struct gz_stream {
z_stream stream;
int z_err; /* error code for last stream operation */
int z_eof; /* set if end of input file */
FILE *file; /* .gz file */
Byte *inbuf; /* input buffer */
Byte *outbuf; /* output buffer */
uLong crc; /* crc32 of uncompressed data */
char *msg; /* error message */
char *path; /* path name for debugging only */
int transparent; /* 1 if input file is not a .gz file */
char mode; /* 'w' or 'r' */
} gz_stream;
/* Data structure describing a single value and its code string. */
typedef struct ct_data_s {
union {
ush freq; /* frequency count */
ush code; /* bit string */
} fc;
union {
ush dad; /* father node in Huffman tree */
ush len; /* length of bit string */
} dl;
} ct_data;
struct static_tree_desc_s {
ct_data *static_tree; /* static tree or NULL */
int *extra_bits; /* extra bits for each code or NULL */
int extra_base; /* base index for extra_bits */
int elems; /* max number of elements in the tree */
int max_length; /* max bit length for the codes */
};
typedef struct static_tree_desc_s static_tree_desc;
typedef struct tree_desc_s {
ct_data *dyn_tree; /* the dynamic tree */
int max_code; /* largest code with non zero frequency */
static_tree_desc *stat_desc; /* the corresponding static tree */
} tree_desc;
typedef struct inflate_huft_s inflate_huft;
struct inflate_huft_s {
union {
struct {
char Exop; /* number of extra bits or operation */
char Bits; /* number of bits in this code or subcode */
} what;
Byte *pad; /* pad structure to a power of 2 (4 bytes for */
} word; /* 16-bit, 8 bytes for 32-bit machines) */
union {
uInt Base; /* literal, length base, or distance base */
inflate_huft *Next; /* pointer to next level of table */
} more;
};
/* inflate codes private state */
struct inflate_codes_state {
/* mode */
enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
START, /* x: set up for LEN */
LEN, /* i: get length/literal/eob next */
LENEXT, /* i: getting length extra (have base) */
DIST, /* i: get distance next */
DISTEXT, /* i: getting distance extra */
COPY, /* o: copying bytes in window, waiting for space */
LIT, /* o: got literal, waiting for output space */
WASH, /* o: got eob, possibly still output waiting */
END, /* x: got eob and all data flushed */
BAD} /* x: got error */
mode; /* current inflate_codes mode */
/* mode dependent information */
uInt len;
union {
struct {
inflate_huft *tree; /* pointer into tree */
uInt need; /* bits needed */
} code; /* if LEN or DIST, where in tree */
uInt lit; /* if LIT, literal */
struct {
uInt get; /* bits to get for extra */
uInt dist; /* distance back to copy from */
} copy; /* if EXT or COPY, where and how much */
} sub; /* submode */
/* mode independent information */
Byte lbits; /* ltree bits decoded per branch */
Byte dbits; /* dtree bits decoder per branch */
inflate_huft *ltree; /* literal/length/eob tree */
inflate_huft *dtree; /* distance tree */
};
/* inflate blocks semi-private state */
struct inflate_blocks_state {
/* mode */
enum {
TYPE, /* get type bits (3, including end bit) */
LENS, /* get lengths for stored */
STORED, /* processing stored block */
TABLE, /* get table lengths */
BTREE, /* get bit lengths tree for a dynamic block */
DTREE, /* get length, distance trees for a dynamic block */
CODES, /* processing fixed or dynamic block */
DRY, /* output remaining window bytes */
DONE, /* finished last block, done */
INF_ERROR}/* got a data error--stuck here */
mode; /* current inflate_block mode */
/* mode dependent information */
union {
uInt left; /* if STORED, bytes left to copy */
struct {
uInt table; /* table lengths (14 bits) */
uInt index; /* index into blens (or border) */
uInt *blens; /* bit lengths of codes */
uInt bb; /* bit length tree depth */
inflate_huft *tb; /* bit length decoding tree */
} trees; /* if DTREE, decoding info for trees */
struct inflate_codes_state
*codes; /* if CODES, current state */
} sub; /* submode */
uInt last; /* true if this block is the last block */
/* mode independent information */
uInt bitk; /* bits in bit buffer */
uLong bitb; /* bit buffer */
Byte *window; /* sliding window */
Byte *end; /* one byte after sliding window */
Byte *read; /* window read pointer */
Byte *write; /* window write pointer */
check_func checkfn; /* check function */
uLong check; /* check on output */
};
typedef struct internal_state {
z_stream *strm; /* pointer back to this zlib stream */
int status; /* as the name implies */
Byte *pending_buf; /* output still pending */
Byte *pending_out; /* next pending byte to output to the stream */
int pending; /* nb of bytes in the pending buffer */
uLong adler; /* adler32 of uncompressed data */
int noheader; /* suppress zlib header and adler32 */
Byte data_type; /* UNKNOWN, BINARY or ASCII */
Byte method; /* STORED (for zip only) or DEFLATED */
/* used by deflate.c: */
uInt w_size; /* LZ77 window size (32K by default) */
uInt w_bits; /* log2(w_size) (8..16) */
uInt w_mask; /* w_size - 1 */
Byte *window;
/* Sliding window. Input bytes are read into the second half of the window,
* and move to the first half later to keep a dictionary of at least wSize
* bytes. With this organization, matches are limited to a distance of
* wSize-MAX_MATCH bytes, but this ensures that IO is always
* performed with a length multiple of the block size. Also, it limits
* the window size to 64K, which is quite useful on MSDOS.
* To do: use the user input buffer as sliding window.
*/
ulg window_size;
/* Actual size of window: 2*wSize, except when the user input buffer
* is directly used as sliding window.
*/
Pos *prev;
/* Link to older string with same hash index. To limit the size of this
* array to 64K, this link is maintained only for the last 32K strings.
* An index in this array is thus a window index modulo 32K.
*/
Pos *head; /* Heads of the hash chains or NIL. */
uInt ins_h; /* hash index of string to be inserted */
uInt hash_size; /* number of elements in hash table */
uInt hash_bits; /* log2(hash_size) */
uInt hash_mask; /* hash_size-1 */
uInt hash_shift;
/* Number of bits by which ins_h must be shifted at each input
* step. It must be such that after MIN_MATCH steps, the oldest
* byte no longer takes part in the hash key, that is:
* hash_shift * MIN_MATCH >= hash_bits
*/
long block_start;
/* Window position at the beginning of the current output block. Gets
* negative when the window is moved backwards.
*/
uInt match_length; /* length of best match */
IPos prev_match; /* previous match */
int match_available; /* set if previous match exists */
uInt strstart; /* start of string to insert */
uInt match_start; /* start of matching string */
uInt lookahead; /* number of valid bytes ahead in window */
uInt prev_length;
/* Length of the best match at previous step. Matches not greater than this
* are discarded. This is used in the lazy match evaluation.
*/
uInt max_chain_length;
/* To speed up deflation, hash chains are never searched beyond this
* length. A higher limit improves compression ratio but degrades the
* speed.
*/
uInt max_lazy_match;
/* Attempt to find a better match only when the current match is strictly
* smaller than this value. This mechanism is used only for compression
* levels >= 4.
*/
# define max_insert_length max_lazy_match
/* Insert new strings in the hash table only if the match length is not
* greater than this length. This saves time but degrades compression.
* max_insert_length is used only for compression levels <= 3.
*/
int level; /* compression level (1..9) */
int strategy; /* favor or force Huffman coding*/
uInt good_match;
/* Use a faster search when the previous match is longer than this */
int nice_match; /* Stop searching when current match exceeds this */
/* used by trees.c: */
ct_data dyn_ltree[HEAP_SIZE]; /* literal and length tree */
ct_data dyn_dtree[2*D_CODES+1]; /* distance tree */
ct_data bl_tree[2*BL_CODES+1]; /* Huffman tree for the bit lengths */
tree_desc l_desc; /* descriptor for literal tree */
tree_desc d_desc; /* descriptor for distance tree */
tree_desc bl_desc; /* descriptor for bit length tree */
ush bl_count[MAX_BITS+1];
/* number of codes at each bit length for an optimal tree */
int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */
int heap_len; /* number of elements in the heap */
int heap_max; /* element of largest frequency */
/* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
* The same heap array is used to build all trees.
*/
uch depth[2*L_CODES+1];
/* Depth of each subtree used as tie breaker for trees of equal frequency
*/
uch *l_buf; /* buffer for literals or lengths */
uInt lit_bufsize;
/* Size of match buffer for literals/lengths. There are 4 reasons for
* limiting lit_bufsize to 64K:
* - frequencies can be kept in 16 bit counters
* - if compression is not successful for the first block, all input
* data is still in the window so we can still emit a stored block even
* when input comes from standard input. (This can also be done for
* all blocks if lit_bufsize is not greater than 32K.)
* - if compression is not successful for a file smaller than 64K, we can
* even emit a stored file instead of a stored block (saving 5 bytes).
* This is applicable only for zip (not gzip or zlib).
* - creating new Huffman trees less frequently may not provide fast
* adaptation to changes in the input data statistics. (Take for
* example a binary file with poorly compressible code followed by
* a highly compressible string table.) Smaller buffer sizes give
* fast adaptation but have of course the overhead of transmitting
* trees more frequently.
* - I can't count above 4
*/
uInt last_lit; /* running index in l_buf */
ush *d_buf;
/* Buffer for distances. To simplify the code, d_buf and l_buf have
* the same number of elements. To use different lengths, an extra flag
* array would be necessary.
*/
ulg opt_len; /* bit length of current block with optimal trees */
ulg static_len; /* bit length of current block with static trees */
ulg compressed_len; /* total bit length of compressed file */
uInt matches; /* number of string matches in current block */
#ifdef DEBUG
ulg bits_sent; /* bit length of the compressed data */
#endif
ush bi_buf;
/* Output buffer. bits are inserted starting at the bottom (least
* significant bits).
*/
int bi_valid;
/* Number of valid bits in bi_buf. All bits above the last valid bit
* are always zero.
*/
/* mode */
enum {
METHOD, /* waiting for method byte */
FLAG, /* waiting for flag byte */
//START, /* make new blocks state */
BLOCKS, /* decompressing blocks */
CHECK4, /* four check bytes to go */
CHECK3, /* three check bytes to go */
CHECK2, /* two check bytes to go */
CHECK1, /* one check byte to go */
//DONE, /* finished check, done */
//INF_ERROR/* got an error--stay here */
}
mode; /* current inflate mode */
/* mode dependent information */
union {
uInt method; /* if FLAGS, method byte */
struct inflate_blocks_state
*blocks; /* if BLOCKS, current state */
struct {
uLong was; /* computed check value */
uLong need; /* stream check value */
} check; /* if CHECK, check values to compare */
} sub; /* submode */
/* mode independent information */
int nowrap; /* flag for no wrapper */
uInt wbits; /* log2(window size) (8..15, defaults to 15) */
} deflate_state;
typedef struct config_s {
ush good_length; /* reduce lazy search above this match length */
ush max_lazy; /* do not perform lazy search above this match length */
ush nice_length; /* quit search above this match length */
ush max_chain;
} config;
char *z_errmsg[] = {
"stream end", /* Z_STREAM_END 1 */
"", /* Z_OK 0 */
"file error", /* Z_ERRNO (-1) */
"stream error", /* Z_STREAM_ERROR (-2) */
"data error", /* Z_DATA_ERROR (-3) */
"insufficient memory", /* Z_MEM_ERROR (-4) */
"buffer error", /* Z_BUF_ERROR (-5) */
""};
local int base_length[LENGTH_CODES];
local int extra_lbits[LENGTH_CODES] /* extra bits for each length code */
= {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
local uch length_code[MAX_MATCH-MIN_MATCH+1];
local int base_dist[D_CODES];
local int extra_dbits[D_CODES] /* extra bits for each distance code */
= {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
local ct_data static_ltree[L_CODES+2];
local uch dist_code[512];
local int base_dist[D_CODES];
local ct_data static_dtree[D_CODES];
local static_tree_desc static_l_desc =
{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS};
local static_tree_desc static_d_desc =
{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS};
local int extra_blbits[BL_CODES]/* extra bits for each bit length code */
= {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
local static_tree_desc static_bl_desc =
{(ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS};
local uch bl_order[BL_CODES]
= {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
local config configuration_table[10] = {
/* good lazy nice chain */
/* 0 */ {0, 0, 0, 0}, /* store only */
/* 1 */ {4, 4, 8, 4}, /* maximum speed, no lazy matches */
/* 2 */ {4, 5, 16, 8},
/* 3 */ {4, 6, 32, 32},
/* 4 */ {4, 4, 16, 16}, /* lazy matches */
/* 5 */ {8, 16, 32, 32},
/* 6 */ {8, 16, 128, 128},
/* 7 */ {8, 32, 128, 256},
/* 8 */ {32, 128, 258, 1024},
/* 9 */ {32, 258, 258, 4096}}; /* maximum compression */
#define FIXEDH 530 /* number of hufts used by fixed tables */
local inflate_huft fixed_mem[FIXEDH];
#define next more.Next
#define Freq fc.freq
#define Code fc.code
#define Dad dl.dad
#define Len dl.len
local voidp zcalloc (opaque, items, size)
voidp opaque;
unsigned items;
unsigned size;
{
return calloc(items, size);
}
local void zcfree (opaque, ptr)
voidp opaque;
voidp ptr;
{
free(ptr);
}
local uLong crc32(crc, buf, len)
uLong crc;
Byte *buf;
uInt len;
{
if (buf == Z_NULL) return 0L;
crc = crc ^ 0xffffffffL;
if (len) do {
crc = wm_tool_crc32_tab[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8);
} while (--len);
return crc ^ 0xffffffffL;
}
local void zmemcpy(dest, source, len)
Byte* dest;
Byte* source;
uInt len;
{
if (len == 0) return;
do {
*dest++ = *source++; /* ??? to be unrolled */
} while (--len != 0);
}
local void zmemzero(dest, len)
Byte* dest;
uInt len;
{
if (len == 0) return;
do {
*dest++ = 0; /* ??? to be unrolled */
} while (--len != 0);
}
local uLong adler32(adler, buf, len)
uLong adler;
Byte *buf;
uInt len;
{
unsigned long s1 = adler & 0xffff;
unsigned long s2 = (adler >> 16) & 0xffff;
int k;
if (buf == Z_NULL) return 1L;
while (len > 0) {
k = len < NMAX ? len : NMAX;
len -= k;
while (k >= 16) {
DO16(buf);
k -= 16;
}
if (k != 0) do {
DO1(buf);
} while (--k);
s1 %= BASE;
s2 %= BASE;
}
return (s2 << 16) | s1;
}
local int read_buf(strm, buf, size)
z_stream *strm;
char *buf;
unsigned size;
{
unsigned len = strm->avail_in;
if (len > size) len = size;
if (len == 0) return 0;
strm->avail_in -= len;
if (!strm->state->noheader) {
strm->state->adler = adler32(strm->state->adler, strm->next_in, len);
}
zmemcpy((Byte *)buf, strm->next_in, len);
strm->next_in += len;
strm->total_in += len;
return (int)len;
}
local int inflate_trees_free(t, z)
inflate_huft *t; /* table to free */
z_stream *z; /* for zfree function */
/* Free the malloc'ed tables built by huft_build(), which makes a linked