Style
This commit is contained in:
Glenn L McGrath
parent
8e027f6474
commit
fedbfe4059
@ -32,66 +32,64 @@
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#include <string.h>
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#include <unistd.h>
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#define IBUFSIZ 2048 /* Defailt input buffer size */
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#define OBUFSIZ 2048 /* Default output buffer size */
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/* Defailt input buffer size */
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#define IBUFSIZ 2048
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/* Defines for third byte of header */
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#define MAGIC_1 (char_type)'\037'/* First byte of compressed file */
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#define MAGIC_2 (char_type)'\235'/* Second byte of compressed file */
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#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */
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/* Masks 0x20 and 0x40 are free. */
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/* I think 0x20 should mean that there is */
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/* a fourth header byte (for expansion). */
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#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */
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/* compression rate is dropping flush tables */
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/* Default output buffer size */
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#define OBUFSIZ 2048
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/* the next two codes should not be changed lightly, as they must not */
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/* lie within the contiguous general code space. */
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#define FIRST 257 /* first free entry */
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#define CLEAR 256 /* table clear output code */
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/* Defines for third byte of header */
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#define MAGIC_1 (char_type)'\037' /* First byte of compressed file */
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#define MAGIC_2 (char_type)'\235' /* Second byte of compressed file */
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#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */
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/* Masks 0x20 and 0x40 are free. */
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/* I think 0x20 should mean that there is */
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/* a fourth header byte (for expansion). */
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#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */
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/* compression rate is dropping flush tables */
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/* the next two codes should not be changed lightly, as they must not */
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/* lie within the contiguous general code space. */
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#define FIRST 257 /* first free entry */
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#define CLEAR 256 /* table clear output code */
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#define INIT_BITS 9 /* initial number of bits/code */
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#define INIT_BITS 9 /* initial number of bits/code */
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/*
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* machine variants which require cc -Dmachine: pdp11, z8000, DOS
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*/
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/* machine variants which require cc -Dmachine: pdp11, z8000, DOS */
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#define FAST
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#define HBITS 17 /* 50% occupancy */
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#define HBITS 17 /* 50% occupancy */
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#define HSIZE (1<<HBITS)
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#define HMASK (HSIZE-1)
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#define HPRIME 9941
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#define BITS 16
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#undef MAXSEG_64K
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typedef long int code_int;
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typedef long int count_int;
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typedef long int cmp_code_int;
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typedef unsigned char char_type;
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#define MAXCODE(n) (1L << (n))
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/* Block compress mode -C compatible with 2.0 */
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int block_mode = BLOCK_MODE;
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/* user settable max # bits/code */
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int maxbits = BITS;
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/* Exitcode of compress (-1 no file compressed) */
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int exit_code = -1;
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/* Input buffer */
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unsigned char inbuf[IBUFSIZ + 64];
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/* Output buffer */
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unsigned char outbuf[OBUFSIZ + 2048];
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int block_mode = BLOCK_MODE;/* Block compress mode -C compatible with 2.0*/
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int maxbits = BITS; /* user settable max # bits/code */
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int exit_code = -1; /* Exitcode of compress (-1 no file compressed) */
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char_type inbuf[IBUFSIZ+64]; /* Input buffer */
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char_type outbuf[OBUFSIZ+2048];/* Output buffer */
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count_int htab[HSIZE];
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unsigned short codetab[HSIZE];
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long int htab[HSIZE];
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unsigned short codetab[HSIZE];
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#define htabof(i) htab[i]
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#define codetabof(i) codetab[i]
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#define tab_prefixof(i) codetabof(i)
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#define tab_suffixof(i) ((char_type *)(htab))[i]
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#define de_stack ((char_type *)&(htab[HSIZE-1]))
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#define tab_suffixof(i) ((unsigned char *)(htab))[i]
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#define de_stack ((unsigned char *)&(htab[HSIZE-1]))
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#define clear_htab() memset(htab, -1, sizeof(htab))
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#define clear_tab_prefixof() memset(codetab, 0, 256);
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@ -105,196 +103,189 @@ unsigned short codetab[HSIZE];
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extern int uncompress(int fd_in, int fd_out)
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{
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char_type *stackp;
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code_int code;
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int finchar;
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code_int oldcode;
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code_int incode;
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int inbits;
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int posbits;
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int outpos;
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int insize;
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int bitmask;
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code_int free_ent;
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code_int maxcode;
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code_int maxmaxcode;
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int n_bits;
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int rsize = 0;
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unsigned char *stackp;
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long int code;
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int finchar;
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long int oldcode;
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long int incode;
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int inbits;
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int posbits;
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int outpos;
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int insize;
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int bitmask;
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long int free_ent;
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long int maxcode;
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long int maxmaxcode;
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int n_bits;
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int rsize = 0;
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insize = 0;
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inbuf [0] = xread_char(fd_in);
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inbuf[0] = xread_char(fd_in);
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maxbits = inbuf[0] & BIT_MASK;
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block_mode = inbuf[0] & BLOCK_MODE;
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maxmaxcode = MAXCODE(maxbits);
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if (maxbits > BITS)
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{
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fprintf(stderr, "compressed with %d bits, can only handle %d bits\n", maxbits, BITS);
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if (maxbits > BITS) {
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error_msg("compressed with %d bits, can only handle %d bits", maxbits,
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BITS);
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return -1;
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}
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//fprintf(stderr, "Bits: %d, block_mode: %d\n", maxbits, block_mode );
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maxcode = MAXCODE(n_bits = INIT_BITS)-1;
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bitmask = (1<<n_bits)-1;
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maxcode = MAXCODE(n_bits = INIT_BITS) - 1;
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bitmask = (1 << n_bits) - 1;
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oldcode = -1;
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finchar = 0;
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outpos = 0;
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posbits = 0<<3;
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posbits = 0 << 3;
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free_ent = ((block_mode) ? FIRST : 256);
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free_ent = ((block_mode) ? FIRST : 256);
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clear_tab_prefixof(); /* As above, initialize the first
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256 entries in the table. */
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/* As above, initialize the first 256 entries in the table. */
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clear_tab_prefixof();
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for (code = 255 ; code >= 0 ; --code)
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tab_suffixof(code) = (char_type)code;
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for (code = 255; code >= 0; --code) {
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tab_suffixof(code) = (unsigned char) code;
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}
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do
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{
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resetbuf: ;
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do {
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resetbuf:;
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{
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int i;
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int e;
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int o;
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int i;
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int e;
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int o;
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e = insize-(o = (posbits>>3));
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e = insize - (o = (posbits >> 3));
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for (i = 0 ; i < e ; ++i)
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inbuf[i] = inbuf[i+o];
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for (i = 0; i < e; ++i)
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inbuf[i] = inbuf[i + o];
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insize = e;
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posbits = 0;
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}
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if (insize < (int) sizeof(inbuf)-IBUFSIZ)
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{
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rsize = read(fd_in, inbuf+insize, IBUFSIZ);
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if (insize < (int) sizeof(inbuf) - IBUFSIZ) {
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rsize = read(fd_in, inbuf + insize, IBUFSIZ);
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insize += rsize;
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}
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inbits = ((rsize > 0) ? (insize - insize%n_bits)<<3 :
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(insize<<3)-(n_bits-1));
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while (inbits > posbits)
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{
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if (free_ent > maxcode)
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{
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posbits = ((posbits-1) + ((n_bits<<3) -
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(posbits-1+(n_bits<<3))%(n_bits<<3)));
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inbits = ((rsize > 0) ? (insize - insize % n_bits) << 3 :
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(insize << 3) - (n_bits - 1));
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while (inbits > posbits) {
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if (free_ent > maxcode) {
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posbits =
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((posbits - 1) +
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((n_bits << 3) -
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(posbits - 1 + (n_bits << 3)) % (n_bits << 3)));
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++n_bits;
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if (n_bits == maxbits)
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if (n_bits == maxbits) {
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maxcode = maxmaxcode;
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else
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maxcode = MAXCODE(n_bits)-1;
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bitmask = (1<<n_bits)-1;
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} else {
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maxcode = MAXCODE(n_bits) - 1;
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}
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bitmask = (1 << n_bits) - 1;
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goto resetbuf;
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}
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{
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unsigned char *p = &inbuf[posbits >> 3];
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{
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char_type *p = &inbuf[posbits>>3];
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code = ((((long)(p[0]))|((long)(p[1])<<8)|((long)(p[2])<<16))>>(posbits&0x7))&bitmask;
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code =
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((((long) (p[0])) | ((long) (p[1]) << 8) |
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((long) (p[2]) << 16)) >> (posbits & 0x7)) & bitmask;
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}
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posbits += n_bits;
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if (oldcode == -1)
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{
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outbuf[outpos++] = (char_type)(finchar = (int)(oldcode = code));
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if (oldcode == -1) {
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outbuf[outpos++] = (unsigned char) (finchar =
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(int) (oldcode = code));
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continue;
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}
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if (code == CLEAR && block_mode)
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{
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if (code == CLEAR && block_mode) {
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clear_tab_prefixof();
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free_ent = FIRST - 1;
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posbits = ((posbits-1) + ((n_bits<<3) -
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(posbits-1+(n_bits<<3))%(n_bits<<3)));
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maxcode = MAXCODE(n_bits = INIT_BITS)-1;
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bitmask = (1<<n_bits)-1;
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free_ent = FIRST - 1;
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posbits =
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((posbits - 1) +
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((n_bits << 3) -
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(posbits - 1 + (n_bits << 3)) % (n_bits << 3)));
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maxcode = MAXCODE(n_bits = INIT_BITS) - 1;
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bitmask = (1 << n_bits) - 1;
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goto resetbuf;
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}
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incode = code;
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stackp = de_stack;
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stackp = de_stack;
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if (code >= free_ent) /* Special case for KwKwK string. */
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{
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if (code > free_ent)
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{
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char_type *p;
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/* Special case for KwKwK string. */
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if (code >= free_ent) {
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if (code > free_ent) {
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unsigned char *p;
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posbits -= n_bits;
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p = &inbuf[posbits>>3];
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p = &inbuf[posbits >> 3];
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fprintf(stderr, "insize:%d posbits:%d inbuf:%02X %02X %02X %02X %02X (%d)\n", insize, posbits,
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p[-1],p[0],p[1],p[2],p[3], (posbits&07));
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fprintf(stderr, "uncompress: corrupt input\n");
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error_msg
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("insize:%d posbits:%d inbuf:%02X %02X %02X %02X %02X (%d)",
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insize, posbits, p[-1], p[0], p[1], p[2], p[3],
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(posbits & 07));
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error_msg("uncompress: corrupt input");
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return -1;
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}
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*--stackp = (char_type)finchar;
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code = oldcode;
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*--stackp = (unsigned char) finchar;
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code = oldcode;
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}
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while ((cmp_code_int)code >= (cmp_code_int)256)
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{ /* Generate output characters in reverse order */
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*--stackp = tab_suffixof(code);
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code = tab_prefixof(code);
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/* Generate output characters in reverse order */
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while ((long int) code >= (long int) 256) {
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*--stackp = tab_suffixof(code);
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code = tab_prefixof(code);
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}
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*--stackp = (char_type)(finchar = tab_suffixof(code));
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/* And put them out in forward order */
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*--stackp = (unsigned char) (finchar = tab_suffixof(code));
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/* And put them out in forward order */
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{
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int i;
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int i;
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if (outpos+(i = (de_stack-stackp)) >= OBUFSIZ)
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{
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do
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{
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if (i > OBUFSIZ-outpos) i = OBUFSIZ-outpos;
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if (outpos + (i = (de_stack - stackp)) >= OBUFSIZ) {
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do {
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if (i > OBUFSIZ - outpos) {
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i = OBUFSIZ - outpos;
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}
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if (i > 0)
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{
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memcpy(outbuf+outpos, stackp, i);
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if (i > 0) {
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memcpy(outbuf + outpos, stackp, i);
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outpos += i;
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}
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if (outpos >= OBUFSIZ)
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{
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if (outpos >= OBUFSIZ) {
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write(fd_out, outbuf, outpos);
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outpos = 0;
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}
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stackp+= i;
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}
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while ((i = (de_stack-stackp)) > 0);
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}
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else
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{
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memcpy(outbuf+outpos, stackp, i);
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stackp += i;
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} while ((i = (de_stack - stackp)) > 0);
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} else {
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memcpy(outbuf + outpos, stackp, i);
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outpos += i;
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}
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}
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if ((code = free_ent) < maxmaxcode) /* Generate the new entry. */
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{
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tab_prefixof(code) = (unsigned short)oldcode;
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tab_suffixof(code) = (char_type)finchar;
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free_ent = code+1;
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}
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/* Generate the new entry. */
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if ((code = free_ent) < maxmaxcode) {
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tab_prefixof(code) = (unsigned short) oldcode;
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tab_suffixof(code) = (unsigned char) finchar;
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free_ent = code + 1;
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}
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oldcode = incode; /* Remember previous code. */
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/* Remember previous code. */
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oldcode = incode;
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}
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}
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while (rsize > 0);
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} while (rsize > 0);
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if (outpos > 0) {
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write(fd_out, outbuf, outpos);
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@ -32,66 +32,64 @@
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#include <string.h>
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#include <unistd.h>
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#define IBUFSIZ 2048 /* Defailt input buffer size */
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#define OBUFSIZ 2048 /* Default output buffer size */
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/* Defailt input buffer size */
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#define IBUFSIZ 2048
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/* Defines for third byte of header */
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#define MAGIC_1 (char_type)'\037'/* First byte of compressed file */
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#define MAGIC_2 (char_type)'\235'/* Second byte of compressed file */
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#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */
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/* Masks 0x20 and 0x40 are free. */
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/* I think 0x20 should mean that there is */
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/* a fourth header byte (for expansion). */
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#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */
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/* compression rate is dropping flush tables */
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/* Default output buffer size */
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#define OBUFSIZ 2048
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/* the next two codes should not be changed lightly, as they must not */
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/* lie within the contiguous general code space. */
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#define FIRST 257 /* first free entry */
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#define CLEAR 256 /* table clear output code */
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/* Defines for third byte of header */
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#define MAGIC_1 (char_type)'\037' /* First byte of compressed file */
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#define MAGIC_2 (char_type)'\235' /* Second byte of compressed file */
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#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */
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/* Masks 0x20 and 0x40 are free. */
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/* I think 0x20 should mean that there is */
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/* a fourth header byte (for expansion). */
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#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */
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/* compression rate is dropping flush tables */
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/* the next two codes should not be changed lightly, as they must not */
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/* lie within the contiguous general code space. */
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#define FIRST 257 /* first free entry */
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#define CLEAR 256 /* table clear output code */
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#define INIT_BITS 9 /* initial number of bits/code */
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#define INIT_BITS 9 /* initial number of bits/code */
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/*
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* machine variants which require cc -Dmachine: pdp11, z8000, DOS
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*/
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/* machine variants which require cc -Dmachine: pdp11, z8000, DOS */
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#define FAST
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#define HBITS 17 /* 50% occupancy */
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#define HBITS 17 /* 50% occupancy */
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#define HSIZE (1<<HBITS)
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#define HMASK (HSIZE-1)
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#define HPRIME 9941
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#define BITS 16
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#undef MAXSEG_64K
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typedef long int code_int;
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typedef long int count_int;
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typedef long int cmp_code_int;
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typedef unsigned char char_type;
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#define MAXCODE(n) (1L << (n))
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||||
|
||||
/* Block compress mode -C compatible with 2.0 */
|
||||
int block_mode = BLOCK_MODE;
|
||||
|
||||
/* user settable max # bits/code */
|
||||
int maxbits = BITS;
|
||||
|
||||
/* Exitcode of compress (-1 no file compressed) */
|
||||
int exit_code = -1;
|
||||
|
||||
/* Input buffer */
|
||||
unsigned char inbuf[IBUFSIZ + 64];
|
||||
|
||||
/* Output buffer */
|
||||
unsigned char outbuf[OBUFSIZ + 2048];
|
||||
|
||||
|
||||
int block_mode = BLOCK_MODE;/* Block compress mode -C compatible with 2.0*/
|
||||
int maxbits = BITS; /* user settable max # bits/code */
|
||||
int exit_code = -1; /* Exitcode of compress (-1 no file compressed) */
|
||||
|
||||
char_type inbuf[IBUFSIZ+64]; /* Input buffer */
|
||||
char_type outbuf[OBUFSIZ+2048];/* Output buffer */
|
||||
|
||||
|
||||
count_int htab[HSIZE];
|
||||
unsigned short codetab[HSIZE];
|
||||
long int htab[HSIZE];
|
||||
unsigned short codetab[HSIZE];
|
||||
|
||||
#define htabof(i) htab[i]
|
||||
#define codetabof(i) codetab[i]
|
||||
#define tab_prefixof(i) codetabof(i)
|
||||
#define tab_suffixof(i) ((char_type *)(htab))[i]
|
||||
#define de_stack ((char_type *)&(htab[HSIZE-1]))
|
||||
#define tab_suffixof(i) ((unsigned char *)(htab))[i]
|
||||
#define de_stack ((unsigned char *)&(htab[HSIZE-1]))
|
||||
#define clear_htab() memset(htab, -1, sizeof(htab))
|
||||
#define clear_tab_prefixof() memset(codetab, 0, 256);
|
||||
|
||||
@ -105,196 +103,189 @@ unsigned short codetab[HSIZE];
|
||||
|
||||
extern int uncompress(int fd_in, int fd_out)
|
||||
{
|
||||
char_type *stackp;
|
||||
code_int code;
|
||||
int finchar;
|
||||
code_int oldcode;
|
||||
code_int incode;
|
||||
int inbits;
|
||||
int posbits;
|
||||
int outpos;
|
||||
int insize;
|
||||
int bitmask;
|
||||
code_int free_ent;
|
||||
code_int maxcode;
|
||||
code_int maxmaxcode;
|
||||
int n_bits;
|
||||
int rsize = 0;
|
||||
unsigned char *stackp;
|
||||
long int code;
|
||||
int finchar;
|
||||
long int oldcode;
|
||||
long int incode;
|
||||
int inbits;
|
||||
int posbits;
|
||||
int outpos;
|
||||
int insize;
|
||||
int bitmask;
|
||||
long int free_ent;
|
||||
long int maxcode;
|
||||
long int maxmaxcode;
|
||||
int n_bits;
|
||||
int rsize = 0;
|
||||
|
||||
insize = 0;
|
||||
|
||||
inbuf [0] = xread_char(fd_in);
|
||||
inbuf[0] = xread_char(fd_in);
|
||||
|
||||
maxbits = inbuf[0] & BIT_MASK;
|
||||
block_mode = inbuf[0] & BLOCK_MODE;
|
||||
maxmaxcode = MAXCODE(maxbits);
|
||||
|
||||
if (maxbits > BITS)
|
||||
{
|
||||
fprintf(stderr, "compressed with %d bits, can only handle %d bits\n", maxbits, BITS);
|
||||
if (maxbits > BITS) {
|
||||
error_msg("compressed with %d bits, can only handle %d bits", maxbits,
|
||||
BITS);
|
||||
return -1;
|
||||
}
|
||||
|
||||
//fprintf(stderr, "Bits: %d, block_mode: %d\n", maxbits, block_mode );
|
||||
|
||||
maxcode = MAXCODE(n_bits = INIT_BITS)-1;
|
||||
bitmask = (1<<n_bits)-1;
|
||||
maxcode = MAXCODE(n_bits = INIT_BITS) - 1;
|
||||
bitmask = (1 << n_bits) - 1;
|
||||
oldcode = -1;
|
||||
finchar = 0;
|
||||
outpos = 0;
|
||||
posbits = 0<<3;
|
||||
posbits = 0 << 3;
|
||||
|
||||
free_ent = ((block_mode) ? FIRST : 256);
|
||||
free_ent = ((block_mode) ? FIRST : 256);
|
||||
|
||||
clear_tab_prefixof(); /* As above, initialize the first
|
||||
256 entries in the table. */
|
||||
/* As above, initialize the first 256 entries in the table. */
|
||||
clear_tab_prefixof();
|
||||
|
||||
for (code = 255 ; code >= 0 ; --code)
|
||||
tab_suffixof(code) = (char_type)code;
|
||||
for (code = 255; code >= 0; --code) {
|
||||
tab_suffixof(code) = (unsigned char) code;
|
||||
}
|
||||
|
||||
do
|
||||
{
|
||||
resetbuf: ;
|
||||
do {
|
||||
resetbuf:;
|
||||
{
|
||||
int i;
|
||||
int e;
|
||||
int o;
|
||||
int i;
|
||||
int e;
|
||||
int o;
|
||||
|
||||
e = insize-(o = (posbits>>3));
|
||||
e = insize - (o = (posbits >> 3));
|
||||
|
||||
for (i = 0 ; i < e ; ++i)
|
||||
inbuf[i] = inbuf[i+o];
|
||||
for (i = 0; i < e; ++i)
|
||||
inbuf[i] = inbuf[i + o];
|
||||
|
||||
insize = e;
|
||||
posbits = 0;
|
||||
}
|
||||
|
||||
if (insize < (int) sizeof(inbuf)-IBUFSIZ)
|
||||
{
|
||||
rsize = read(fd_in, inbuf+insize, IBUFSIZ);
|
||||
if (insize < (int) sizeof(inbuf) - IBUFSIZ) {
|
||||
rsize = read(fd_in, inbuf + insize, IBUFSIZ);
|
||||
insize += rsize;
|
||||
}
|
||||
|
||||
inbits = ((rsize > 0) ? (insize - insize%n_bits)<<3 :
|
||||
(insize<<3)-(n_bits-1));
|
||||
|
||||
while (inbits > posbits)
|
||||
{
|
||||
if (free_ent > maxcode)
|
||||
{
|
||||
posbits = ((posbits-1) + ((n_bits<<3) -
|
||||
(posbits-1+(n_bits<<3))%(n_bits<<3)));
|
||||
inbits = ((rsize > 0) ? (insize - insize % n_bits) << 3 :
|
||||
(insize << 3) - (n_bits - 1));
|
||||
|
||||
while (inbits > posbits) {
|
||||
if (free_ent > maxcode) {
|
||||
posbits =
|
||||
((posbits - 1) +
|
||||
((n_bits << 3) -
|
||||
(posbits - 1 + (n_bits << 3)) % (n_bits << 3)));
|
||||
++n_bits;
|
||||
if (n_bits == maxbits)
|
||||
if (n_bits == maxbits) {
|
||||
maxcode = maxmaxcode;
|
||||
else
|
||||
maxcode = MAXCODE(n_bits)-1;
|
||||
|
||||
bitmask = (1<<n_bits)-1;
|
||||
} else {
|
||||
maxcode = MAXCODE(n_bits) - 1;
|
||||
}
|
||||
bitmask = (1 << n_bits) - 1;
|
||||
goto resetbuf;
|
||||
}
|
||||
{
|
||||
unsigned char *p = &inbuf[posbits >> 3];
|
||||
|
||||
|
||||
{
|
||||
char_type *p = &inbuf[posbits>>3];
|
||||
code = ((((long)(p[0]))|((long)(p[1])<<8)|((long)(p[2])<<16))>>(posbits&0x7))&bitmask;
|
||||
code =
|
||||
((((long) (p[0])) | ((long) (p[1]) << 8) |
|
||||
((long) (p[2]) << 16)) >> (posbits & 0x7)) & bitmask;
|
||||
}
|
||||
posbits += n_bits;
|
||||
|
||||
|
||||
if (oldcode == -1)
|
||||
{
|
||||
outbuf[outpos++] = (char_type)(finchar = (int)(oldcode = code));
|
||||
|
||||
if (oldcode == -1) {
|
||||
outbuf[outpos++] = (unsigned char) (finchar =
|
||||
(int) (oldcode = code));
|
||||
continue;
|
||||
}
|
||||
|
||||
if (code == CLEAR && block_mode)
|
||||
{
|
||||
if (code == CLEAR && block_mode) {
|
||||
clear_tab_prefixof();
|
||||
free_ent = FIRST - 1;
|
||||
posbits = ((posbits-1) + ((n_bits<<3) -
|
||||
(posbits-1+(n_bits<<3))%(n_bits<<3)));
|
||||
maxcode = MAXCODE(n_bits = INIT_BITS)-1;
|
||||
bitmask = (1<<n_bits)-1;
|
||||
free_ent = FIRST - 1;
|
||||
posbits =
|
||||
((posbits - 1) +
|
||||
((n_bits << 3) -
|
||||
(posbits - 1 + (n_bits << 3)) % (n_bits << 3)));
|
||||
maxcode = MAXCODE(n_bits = INIT_BITS) - 1;
|
||||
bitmask = (1 << n_bits) - 1;
|
||||
goto resetbuf;
|
||||
}
|
||||
|
||||
incode = code;
|
||||
stackp = de_stack;
|
||||
stackp = de_stack;
|
||||
|
||||
if (code >= free_ent) /* Special case for KwKwK string. */
|
||||
{
|
||||
if (code > free_ent)
|
||||
{
|
||||
char_type *p;
|
||||
/* Special case for KwKwK string. */
|
||||
if (code >= free_ent) {
|
||||
if (code > free_ent) {
|
||||
unsigned char *p;
|
||||
|
||||
posbits -= n_bits;
|
||||
p = &inbuf[posbits>>3];
|
||||
p = &inbuf[posbits >> 3];
|
||||
|
||||
fprintf(stderr, "insize:%d posbits:%d inbuf:%02X %02X %02X %02X %02X (%d)\n", insize, posbits,
|
||||
p[-1],p[0],p[1],p[2],p[3], (posbits&07));
|
||||
fprintf(stderr, "uncompress: corrupt input\n");
|
||||
error_msg
|
||||
("insize:%d posbits:%d inbuf:%02X %02X %02X %02X %02X (%d)",
|
||||
insize, posbits, p[-1], p[0], p[1], p[2], p[3],
|
||||
(posbits & 07));
|
||||
error_msg("uncompress: corrupt input");
|
||||
return -1;
|
||||
}
|
||||
|
||||
*--stackp = (char_type)finchar;
|
||||
code = oldcode;
|
||||
*--stackp = (unsigned char) finchar;
|
||||
code = oldcode;
|
||||
}
|
||||
|
||||
while ((cmp_code_int)code >= (cmp_code_int)256)
|
||||
{ /* Generate output characters in reverse order */
|
||||
*--stackp = tab_suffixof(code);
|
||||
code = tab_prefixof(code);
|
||||
/* Generate output characters in reverse order */
|
||||
while ((long int) code >= (long int) 256) {
|
||||
*--stackp = tab_suffixof(code);
|
||||
code = tab_prefixof(code);
|
||||
}
|
||||
|
||||
*--stackp = (char_type)(finchar = tab_suffixof(code));
|
||||
|
||||
/* And put them out in forward order */
|
||||
*--stackp = (unsigned char) (finchar = tab_suffixof(code));
|
||||
|
||||
/* And put them out in forward order */
|
||||
{
|
||||
int i;
|
||||
int i;
|
||||
|
||||
if (outpos+(i = (de_stack-stackp)) >= OBUFSIZ)
|
||||
{
|
||||
do
|
||||
{
|
||||
if (i > OBUFSIZ-outpos) i = OBUFSIZ-outpos;
|
||||
if (outpos + (i = (de_stack - stackp)) >= OBUFSIZ) {
|
||||
do {
|
||||
if (i > OBUFSIZ - outpos) {
|
||||
i = OBUFSIZ - outpos;
|
||||
}
|
||||
|
||||
if (i > 0)
|
||||
{
|
||||
memcpy(outbuf+outpos, stackp, i);
|
||||
if (i > 0) {
|
||||
memcpy(outbuf + outpos, stackp, i);
|
||||
outpos += i;
|
||||
}
|
||||
|
||||
if (outpos >= OBUFSIZ)
|
||||
{
|
||||
if (outpos >= OBUFSIZ) {
|
||||
write(fd_out, outbuf, outpos);
|
||||
outpos = 0;
|
||||
}
|
||||
stackp+= i;
|
||||
}
|
||||
while ((i = (de_stack-stackp)) > 0);
|
||||
}
|
||||
else
|
||||
{
|
||||
memcpy(outbuf+outpos, stackp, i);
|
||||
stackp += i;
|
||||
} while ((i = (de_stack - stackp)) > 0);
|
||||
} else {
|
||||
memcpy(outbuf + outpos, stackp, i);
|
||||
outpos += i;
|
||||
}
|
||||
}
|
||||
|
||||
if ((code = free_ent) < maxmaxcode) /* Generate the new entry. */
|
||||
{
|
||||
tab_prefixof(code) = (unsigned short)oldcode;
|
||||
tab_suffixof(code) = (char_type)finchar;
|
||||
free_ent = code+1;
|
||||
}
|
||||
/* Generate the new entry. */
|
||||
if ((code = free_ent) < maxmaxcode) {
|
||||
tab_prefixof(code) = (unsigned short) oldcode;
|
||||
tab_suffixof(code) = (unsigned char) finchar;
|
||||
free_ent = code + 1;
|
||||
}
|
||||
|
||||
oldcode = incode; /* Remember previous code. */
|
||||
/* Remember previous code. */
|
||||
oldcode = incode;
|
||||
}
|
||||
|
||||
}
|
||||
while (rsize > 0);
|
||||
} while (rsize > 0);
|
||||
|
||||
if (outpos > 0) {
|
||||
write(fd_out, outbuf, outpos);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user