From fedbfe40595c8f503b38382b4e882f93e7ec1e40 Mon Sep 17 00:00:00 2001 From: Glenn L McGrath Date: Thu, 28 Nov 2002 09:09:47 +0000 Subject: Style --- archival/libunarchive/decompress_uncompress.c | 307 +++++++++++++------------- archival/libunarchive/uncompress.c | 307 +++++++++++++------------- 2 files changed, 298 insertions(+), 316 deletions(-) (limited to 'archival/libunarchive') diff --git a/archival/libunarchive/decompress_uncompress.c b/archival/libunarchive/decompress_uncompress.c index fe0f2b3..192e981 100644 --- a/archival/libunarchive/decompress_uncompress.c +++ b/archival/libunarchive/decompress_uncompress.c @@ -32,66 +32,64 @@ #include #include -#define IBUFSIZ 2048 /* Defailt input buffer size */ -#define OBUFSIZ 2048 /* Default output buffer size */ - - /* Defines for third byte of header */ -#define MAGIC_1 (char_type)'\037'/* First byte of compressed file */ -#define MAGIC_2 (char_type)'\235'/* Second byte of compressed file */ -#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */ - /* Masks 0x20 and 0x40 are free. */ - /* I think 0x20 should mean that there is */ - /* a fourth header byte (for expansion). */ -#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */ - /* compression rate is dropping flush tables */ - - /* the next two codes should not be changed lightly, as they must not */ - /* lie within the contiguous general code space. */ -#define FIRST 257 /* first free entry */ -#define CLEAR 256 /* table clear output code */ - -#define INIT_BITS 9 /* initial number of bits/code */ - - -/* - * machine variants which require cc -Dmachine: pdp11, z8000, DOS - */ +/* Defailt input buffer size */ +#define IBUFSIZ 2048 + +/* Default output buffer size */ +#define OBUFSIZ 2048 + +/* Defines for third byte of header */ +#define MAGIC_1 (char_type)'\037' /* First byte of compressed file */ +#define MAGIC_2 (char_type)'\235' /* Second byte of compressed file */ +#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */ + /* Masks 0x20 and 0x40 are free. */ + /* I think 0x20 should mean that there is */ + /* a fourth header byte (for expansion). */ +#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */ + /* compression rate is dropping flush tables */ + /* the next two codes should not be changed lightly, as they must not */ + /* lie within the contiguous general code space. */ +#define FIRST 257 /* first free entry */ +#define CLEAR 256 /* table clear output code */ + +#define INIT_BITS 9 /* initial number of bits/code */ + + +/* machine variants which require cc -Dmachine: pdp11, z8000, DOS */ #define FAST -#define HBITS 17 /* 50% occupancy */ +#define HBITS 17 /* 50% occupancy */ #define HSIZE (1< 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<= 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<> 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<= 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); diff --git a/archival/libunarchive/uncompress.c b/archival/libunarchive/uncompress.c index fe0f2b3..192e981 100644 --- a/archival/libunarchive/uncompress.c +++ b/archival/libunarchive/uncompress.c @@ -32,66 +32,64 @@ #include #include -#define IBUFSIZ 2048 /* Defailt input buffer size */ -#define OBUFSIZ 2048 /* Default output buffer size */ - - /* Defines for third byte of header */ -#define MAGIC_1 (char_type)'\037'/* First byte of compressed file */ -#define MAGIC_2 (char_type)'\235'/* Second byte of compressed file */ -#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */ - /* Masks 0x20 and 0x40 are free. */ - /* I think 0x20 should mean that there is */ - /* a fourth header byte (for expansion). */ -#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */ - /* compression rate is dropping flush tables */ - - /* the next two codes should not be changed lightly, as they must not */ - /* lie within the contiguous general code space. */ -#define FIRST 257 /* first free entry */ -#define CLEAR 256 /* table clear output code */ - -#define INIT_BITS 9 /* initial number of bits/code */ - - -/* - * machine variants which require cc -Dmachine: pdp11, z8000, DOS - */ +/* Defailt input buffer size */ +#define IBUFSIZ 2048 + +/* Default output buffer size */ +#define OBUFSIZ 2048 + +/* Defines for third byte of header */ +#define MAGIC_1 (char_type)'\037' /* First byte of compressed file */ +#define MAGIC_2 (char_type)'\235' /* Second byte of compressed file */ +#define BIT_MASK 0x1f /* Mask for 'number of compresssion bits' */ + /* Masks 0x20 and 0x40 are free. */ + /* I think 0x20 should mean that there is */ + /* a fourth header byte (for expansion). */ +#define BLOCK_MODE 0x80 /* Block compresssion if table is full and */ + /* compression rate is dropping flush tables */ + /* the next two codes should not be changed lightly, as they must not */ + /* lie within the contiguous general code space. */ +#define FIRST 257 /* first free entry */ +#define CLEAR 256 /* table clear output code */ + +#define INIT_BITS 9 /* initial number of bits/code */ + + +/* machine variants which require cc -Dmachine: pdp11, z8000, DOS */ #define FAST -#define HBITS 17 /* 50% occupancy */ +#define HBITS 17 /* 50% occupancy */ #define HSIZE (1< 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<= 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<> 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<= 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); -- cgit v1.1