diff options
| -rw-r--r-- | archival/bunzip2.c | 616 |
1 files changed, 54 insertions, 562 deletions
diff --git a/archival/bunzip2.c b/archival/bunzip2.c index f2d5149..d24f383 100644 --- a/archival/bunzip2.c +++ b/archival/bunzip2.c @@ -71,19 +71,12 @@ #define BZ_MAX_ALPHA_SIZE 258 #define BZ_OK 0 -#define BZ_RUN_OK 1 -#define BZ_FLUSH_OK 2 -#define BZ_FINISH_OK 3 #define BZ_STREAM_END 4 #define BZ_SEQUENCE_ERROR (-1) -#define BZ_PARAM_ERROR (-2) -#define BZ_MEM_ERROR (-3) #define BZ_DATA_ERROR (-4) #define BZ_DATA_ERROR_MAGIC (-5) #define BZ_IO_ERROR (-6) #define BZ_UNEXPECTED_EOF (-7) -#define BZ_OUTBUFF_FULL (-8) -#define BZ_CONFIG_ERROR (-9) #define BZ_RUNA 0 #define BZ_RUNB 1 @@ -138,33 +131,24 @@ #define BZ_X_CCRC_4 50 #define BZ_MAX_CODE_LEN 23 -#define BZ_VERSION "1.0.1, 23-June-2000" #define OM_TEST 3 #define SM_F2F 3 typedef struct { char *next_in; unsigned int avail_in; - unsigned int total_in_lo32; - unsigned int total_in_hi32; char *next_out; unsigned int avail_out; - unsigned int total_out_lo32; - unsigned int total_out_hi32; void *state; - void *(*bzalloc)(void *,int,int); - void (*bzfree)(void *,void *); - void *opaque; } bz_stream; typedef struct { bz_stream strm; FILE *handle; unsigned char initialisedOk; - unsigned char writing; char buf[BZ_MAX_UNUSED]; int lastErr; int bufN; @@ -191,9 +175,7 @@ typedef struct { /* misc administratium */ int blockSize100k; - unsigned char smallDecompress; int currBlockNo; - int verbosity; /* for undoing the Burrows-Wheeler transform */ int origPtr; @@ -207,10 +189,6 @@ typedef struct { /* for undoing the Burrows-Wheeler transform (FAST) */ unsigned int *tt; - /* for undoing the Burrows-Wheeler transform (SMALL) */ - unsigned short *ll16; - unsigned char *ll4; - /* stored and calculated CRCs */ unsigned int storedBlockCRC; unsigned int storedCombinedCRC; @@ -263,10 +241,6 @@ typedef struct { } DState; int BZ2_rNums[512]; -//int verbosity_level; -unsigned char smallMode; -unsigned char noisy; -char *progName; char inName[FILE_NAME_LEN]; char outName[FILE_NAME_LEN]; int srcMode; @@ -374,37 +348,19 @@ static void cleanUpAndFail(int ec) int retVal; if ((srcMode == SM_F2F) && (opMode != OM_TEST) && deleteOutputOnInterrupt) { - if (noisy) { - error_msg("%s: Deleting output file %s, if it exists.\n", progName, outName); - } if (outputHandleJustInCase != NULL) { fclose(outputHandleJustInCase); } retVal = remove(outName); if (retVal != 0) { - error_msg("%s: WARNING: deletion of output file (apparently) failed.\n", progName); + error_msg("%s: WARNING: deletion of output file (apparently) failed.\n", applet_name); } } - if (noisy && (numFileNames > 0) && (numFilesProcessed < numFileNames)) { - error_msg("%s: WARNING: some files have not been processed:\n" - "\t%d specified on command line, %d not processed yet.\n\n", - progName, numFileNames, numFileNames - numFilesProcessed ); - } exit(ec); } -void panic(char *s) -{ - error_msg("\n%s: PANIC -- internal consistency error:\n" - "\t%s\n" - "\tThis is a BUG. Please report it to me at:\n" - "\tjseward@acm.org\n", - progName, s); - cleanUpAndFail( 3 ); -} - void BZ2_hbCreateDecodeTables(int *limit, int *base, int *perm, unsigned char *length, int minLen, int maxLen, int alphaSize ) { int pp, i, j, vec; @@ -446,40 +402,6 @@ void BZ2_hbCreateDecodeTables(int *limit, int *base, int *perm, unsigned char *l } } -int bz_get_small(DState *s) -{ - int cccc; - int nb, na, mid; - nb = 0; - na = 256; - do { - mid = (nb + na) >> 1; - if (s->tPos >= s->cftab[mid]) { - nb = mid; - } else { - na = mid; - } - } - while (na - nb != 1); - cccc = nb; - s->tPos = (((unsigned int)s->ll16[s->tPos]) | - (((((unsigned int)(s->ll4[(s->tPos) >> 1])) >> - (((s->tPos) << 2) & 0x4)) & 0xF) << 16)); - return(cccc); -} - -void assert_h(int errcode) -{ - error_msg_and_die("\n\nbzip2/libbzip2: internal error number %d.\n" - "This is a bug in bzip2/libbzip2, %s.\n" - "Please report it to me at: jseward@acm.org. If this happened\n" - "when you were using some program which uses libbzip2 as a\n" - "component, you should also report this bug to the author(s)\n" - "of that program. Please make an effort to report this bug;\n" - "timely and accurate bug reports eventually lead to higher\n" - "quality software. Thanks. Julian Seward, 21 March 2000.\n\n", - errcode, BZ_VERSION); -} static int get_bits(DState *s, int *vvv, char nnn) { @@ -496,10 +418,6 @@ static int get_bits(DState *s, int *vvv, char nnn) s->bsLive += 8; s->strm->next_in++; s->strm->avail_in--; - s->strm->total_in_lo32++; - if (s->strm->total_in_lo32 == 0) { - s->strm->total_in_hi32++; - } } return(TRUE); } @@ -519,7 +437,6 @@ int BZ2_decompress(DState *s) int uc = 0; int retVal; int minLen, maxLen; - bz_stream *strm = s->strm; /* stuff that needs to be saved/restored */ int i; @@ -670,21 +587,7 @@ int BZ2_decompress(DState *s) } s->blockSize100k -= '0'; - if (s->smallDecompress) { - s->ll16 = (strm->bzalloc)(strm->opaque, s->blockSize100k * 100000 * sizeof(unsigned short), 1); - s->ll4 = (strm->bzalloc)(strm->opaque, ((1 + s->blockSize100k * 100000) >> 1) * sizeof(unsigned char), 1); - - if (s->ll16 == NULL || s->ll4 == NULL) { - retVal = BZ_MEM_ERROR; - goto save_state_and_return; - } - } else { - s->tt = (strm->bzalloc)(strm->opaque, s->blockSize100k * 100000 * sizeof(int), 1); - if (s->tt == NULL) { - retVal = BZ_MEM_ERROR; - goto save_state_and_return; - } - } + s->tt = xmalloc(s->blockSize100k * 100000 * sizeof(int)); case BZ_X_BLKHDR_1: s->state = BZ_X_BLKHDR_1; @@ -757,9 +660,6 @@ int BZ2_decompress(DState *s) } s->currBlockNo++; - if (s->verbosity >= 2) { - error_msg("\n [%d: huff+mtf ", s->currBlockNo); - } s->storedBlockCRC = 0; case BZ_X_BCRC_1: @@ -1135,26 +1035,14 @@ int BZ2_decompress(DState *s) uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ]; s->unzftab[uc] += es; - if (s->smallDecompress) { - while (es > 0) { - if (nblock >= nblockMAX) { - retVal = BZ_DATA_ERROR; - goto save_state_and_return; - } - s->ll16[nblock] = (unsigned short)uc; - nblock++; - es--; - } - } else { - while (es > 0) { - if (nblock >= nblockMAX) { - retVal = BZ_DATA_ERROR; - goto save_state_and_return; - } - s->tt[nblock] = (unsigned int)uc; - nblock++; - es--; + while (es > 0) { + if (nblock >= nblockMAX) { + retVal = BZ_DATA_ERROR; + goto save_state_and_return; } + s->tt[nblock] = (unsigned int)uc; + nblock++; + es--; } continue; } else { @@ -1217,11 +1105,7 @@ int BZ2_decompress(DState *s) /*-- end uc = MTF ( nextSym-1 ) --*/ s->unzftab[s->seqToUnseq[uc]]++; - if (s->smallDecompress) { - s->ll16[nblock] = (unsigned short)(s->seqToUnseq[uc]); - } else { - s->tt[nblock] = (unsigned int)(s->seqToUnseq[uc]); - } + s->tt[nblock] = (unsigned int)(s->seqToUnseq[uc]); nblock++; if (! get_mtf_val_init()) { @@ -1271,9 +1155,6 @@ int BZ2_decompress(DState *s) s->state_out_ch = 0; s->calculatedBlockCRC = 0xffffffffL; s->state = BZ_X_OUTPUT; - if (s->verbosity >= 2) { - error_msg("rt+rld"); - } /*-- Set up cftab to facilitate generation of T^(-1) --*/ s->cftab[0] = 0; @@ -1284,82 +1165,27 @@ int BZ2_decompress(DState *s) s->cftab[i] += s->cftab[i-1]; } - if (s->smallDecompress) { - - /*-- Make a copy of cftab, used in generation of T --*/ - for (i = 0; i <= 256; i++) { - s->cftabCopy[i] = s->cftab[i]; - } - - /*-- compute the T vector --*/ - for (i = 0; i < nblock; i++) { - uc = (unsigned char)(s->ll16[i]); - s->ll16[i] = (unsigned short)(s->cftabCopy[uc] & 0x0000ffff); - if (((i) & 0x1) == 0) { - s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) | (s->cftabCopy[uc] >> 16); - } else { - s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) | ((s->cftabCopy[uc] >> 16) << 4); - } - s->cftabCopy[uc]++; - } - - /*-- Compute T^(-1) by pointer reversal on T --*/ - i = s->origPtr; - j = (((unsigned int)s->ll16[i]) | - (((((unsigned int)(s->ll4[(i) >> 1])) >> - (((i) << 2) & 0x4)) & 0xF) << 16)); + /*-- compute the T^(-1) vector --*/ + for (i = 0; i < nblock; i++) { + uc = (unsigned char)(s->tt[i] & 0xff); + s->tt[s->cftab[uc]] |= (i << 8); + s->cftab[uc]++; + } - do { - const int tmp = (((unsigned int)s->ll16[j]) | - (((((unsigned int)(s->ll4[(j) >> 1])) >> - (((j) << 2) & 0x4)) & 0xF) << 16)); + s->tPos = s->tt[s->origPtr] >> 8; + s->nblock_used = 0; + if (s->blockRandomised) { + s->rNToGo = 0; + s->rTPos = 0; + s->k0 = bz_get_fast(s); - s->ll16[j] = (unsigned short)(i & 0x0000ffff); - if (((j) & 0x1) == 0) { - s->ll4[(j) >> 1] = (s->ll4[(j) >> 1] & 0xf0) | (i >> 16); - } else { - s->ll4[(j) >> 1] = (s->ll4[(j) >> 1] & 0x0f) | ((i >> 16) << 4); - } - i = j; - j = tmp; - } - while (i != s->origPtr); - s->tPos = s->origPtr; - s->nblock_used = 0; - if (s->blockRandomised) { - s->rNToGo = 0; - s->rTPos = 0; - s->k0 = bz_get_small(s); - s->nblock_used++; - bz_rand_udp_mask(s); - s->k0 ^= ((s->rNToGo == 1) ? 1 : 0); - } else { - s->k0 = bz_get_small(s); - s->nblock_used++; - } - } else { - /*-- compute the T^(-1) vector --*/ - for (i = 0; i < nblock; i++) { - uc = (unsigned char)(s->tt[i] & 0xff); - s->tt[s->cftab[uc]] |= (i << 8); - s->cftab[uc]++; - } - - s->tPos = s->tt[s->origPtr] >> 8; - s->nblock_used = 0; - if (s->blockRandomised) { - s->rNToGo = 0; - s->rTPos = 0; - s->k0 = bz_get_fast(s); - - s->nblock_used++; - bz_rand_udp_mask(s); - s->k0 ^= ((s->rNToGo == 1) ? 1 : 0); - } else { - s->k0 = bz_get_fast(s); - s->nblock_used++; - } - } + s->nblock_used++; + bz_rand_udp_mask(s); + s->k0 ^= ((s->rNToGo == 1) ? 1 : 0); + } else { + s->k0 = bz_get_fast(s); + s->nblock_used++; + } retVal = BZ_OK; goto save_state_and_return; @@ -1456,13 +1282,8 @@ endhdr_2: retVal = BZ_STREAM_END; goto save_state_and_return; -default: - printf("switch val is %d\n", switch_val); - assert_h(4001); } - assert_h(4002); - save_state_and_return: s->save_i = i; s->save_j = j; @@ -1492,68 +1313,23 @@ save_state_and_return: return retVal; } -static void *default_bzalloc(void *opaque, int items, int size) -{ - void *v = xmalloc(items *size); - return v; -} - -static void default_bzfree(void *opaque, void *addr) -{ - if (addr != NULL) { - free(addr); - } -} - //int BZ2_bzDecompressInit(bz_stream* strm, int verbosity_level, int small) -int BZ2_bzDecompressInit(bz_stream* strm, int small) +int BZ2_bzDecompressInit(bz_stream* strm) { DState* s; - if (sizeof(int) != 4) { - return BZ_CONFIG_ERROR; - } - if (sizeof(short) != 2) { - return BZ_CONFIG_ERROR; - } - if (sizeof(char) != 1) { - return BZ_CONFIG_ERROR; - } - if (strm == NULL) { - return BZ_PARAM_ERROR; - } - if (small != 0 && small != 1) { - return BZ_PARAM_ERROR; - } // if (verbosity_level < 0 || verbosity_level > 4) { // return BZ_PARAM_ERROR; // } - if (strm->bzalloc == NULL) { - strm->bzalloc = default_bzalloc; - } - if (strm->bzfree == NULL) { - strm->bzfree = default_bzfree; - } - s = (strm->bzalloc)(strm->opaque, sizeof(DState), 1); - if (s == NULL) { - return BZ_MEM_ERROR; - } + s = xmalloc(sizeof(DState)); s->strm = strm; strm->state = s; s->state = BZ_X_MAGIC_1; s->bsLive = 0; s->bsBuff = 0; s->calculatedCombinedCRC = 0; - strm->total_in_lo32 = 0; - strm->total_in_hi32 = 0; - strm->total_out_lo32 = 0; - strm->total_out_hi32 = 0; - s->smallDecompress = (unsigned char)small; - s->ll4 = NULL; - s->ll16 = NULL; s->tt = NULL; s->currBlockNo = 0; -// s->verbosity = verbosity_level; return BZ_OK; } @@ -1568,20 +1344,11 @@ void bz_seterr(int eee, int *bzerror, bzFile **bzf) } } -void BZ2_bzReadClose(int *bzerror, void *b) +static void BZ2_bzReadClose(int *bzerror, void *b) { bzFile* bzf = (bzFile*)b; bz_seterr(BZ_OK, bzerror, &bzf); - if (bzf == NULL) { - bz_seterr(BZ_OK, bzerror, &bzf); - return; - } - - if (bzf->writing) { - bz_seterr(BZ_SEQUENCE_ERROR, bzerror, &bzf); - return; - } if (bzf->initialisedOk) { bz_stream *strm = &(bzf->strm); @@ -1593,16 +1360,8 @@ void BZ2_bzReadClose(int *bzerror, void *b) if ((s == NULL) || (s->strm != strm)) { return; } - if (s->tt != NULL) { - (strm->bzfree)(strm->opaque,(s->tt)); - } - if (s->ll16 != NULL) { - (strm->bzfree)(strm->opaque,(s->ll16)); - } - if (s->ll4 != NULL) { - (strm->bzfree)(strm->opaque,(s->ll4)); - } - (strm->bzfree)(strm->opaque,(strm->state)); + free(s->tt); + free(strm->state); strm->state = NULL; return; } @@ -1630,10 +1389,6 @@ static void unRLE_obuf_to_output_FAST(DState *s) s->state_out_len--; s->strm->next_out++; s->strm->avail_out--; - s->strm->total_out_lo32++; - if (s->strm->total_out_lo32 == 0) { - s->strm->total_out_hi32++; - } } /* can a new run be started? */ @@ -1702,9 +1457,7 @@ static void unRLE_obuf_to_output_FAST(DState *s) unsigned int cs_avail_out = s->strm->avail_out; /* end restore */ - unsigned int avail_out_INIT = cs_avail_out; int s_save_nblockPP = s->save_nblock+1; - unsigned int total_out_lo32_old; while (1) { /* try to finish existing run */ @@ -1801,11 +1554,6 @@ s_state_out_len_eq_one: } return_notr: - total_out_lo32_old = s->strm->total_out_lo32; - s->strm->total_out_lo32 += (avail_out_INIT - cs_avail_out); - if (s->strm->total_out_lo32 < total_out_lo32_old) { - s->strm->total_out_hi32++; - } /* save */ s->calculatedBlockCRC = c_calculatedBlockCRC; @@ -1821,190 +1569,19 @@ return_notr: } } -static void unRLE_obuf_to_output_SMALL(DState *s) -{ - unsigned char k1; - - if (s->blockRandomised) { - while (1) { - /* try to finish existing run */ - while (1) { - if (s->strm->avail_out == 0) { - return; - } - if (s->state_out_len == 0) { - break; - } - *((unsigned char *)(s->strm->next_out)) = s->state_out_ch; - s->calculatedBlockCRC = (s->calculatedBlockCRC << 8) ^ - BZ2_crc32Table[(s->calculatedBlockCRC >> 24) ^ - ((unsigned char)s->state_out_ch)]; - s->state_out_len--; - s->strm->next_out++; - s->strm->avail_out--; - s->strm->total_out_lo32++; - if (s->strm->total_out_lo32 == 0) { - s->strm->total_out_hi32++; - } - } - - /* can a new run be started? */ - if (s->nblock_used == s->save_nblock+1) { - return; - } - - s->state_out_len = 1; - s->state_out_ch = s->k0; - k1 = bz_get_small(s); - bz_rand_udp_mask(s); - k1 ^= ((s->rNToGo == 1) ? 1 : 0); - s->nblock_used++; - if (s->nblock_used == s->save_nblock+1) { - continue; - } - if (k1 != s->k0) { - s->k0 = k1; - continue; - } - - s->state_out_len = 2; - k1 = bz_get_small(s); - bz_rand_udp_mask(s); - k1 ^= ((s->rNToGo == 1) ? 1 : 0); - s->nblock_used++; - if (s->nblock_used == s->save_nblock+1) { - continue; - } - if (k1 != s->k0) { - s->k0 = k1; - continue; - } - - s->state_out_len = 3; - k1 = bz_get_small(s); - bz_rand_udp_mask(s); - k1 ^= ((s->rNToGo == 1) ? 1 : 0); - s->nblock_used++; - if (s->nblock_used == s->save_nblock+1) { - continue; - } - if (k1 != s->k0) { - s->k0 = k1; - continue; - } - k1 = bz_get_small(s); - bz_rand_udp_mask(s); - k1 ^= ((s->rNToGo == 1) ? 1 : 0); - s->nblock_used++; - s->state_out_len = ((int)k1) + 4; - s->k0 = bz_get_small(s); - bz_rand_udp_mask(s); - s->k0 ^= ((s->rNToGo == 1) ? 1 : 0); - s->nblock_used++; - } - } else { - while (1) { - /* try to finish existing run */ - while (1) { - if (s->strm->avail_out == 0) { - return; - } - if (s->state_out_len == 0) { - break; - } - *((unsigned char *)(s->strm->next_out)) = s->state_out_ch; - s->calculatedBlockCRC = (s->calculatedBlockCRC << 8) ^ - BZ2_crc32Table[(s->calculatedBlockCRC >> 24) ^ - ((unsigned char)s->state_out_ch)]; - s->state_out_len--; - s->strm->next_out++; - s->strm->avail_out--; - s->strm->total_out_lo32++; - if (s->strm->total_out_lo32 == 0) { - s->strm->total_out_hi32++; - } - } - - /* can a new run be started? */ - if (s->nblock_used == s->save_nblock+1) { - return; - } - - s->state_out_len = 1; - s->state_out_ch = s->k0; - k1 = bz_get_small(s); - s->nblock_used++; - if (s->nblock_used == s->save_nblock+1) { - continue; - } - if (k1 != s->k0) { - s->k0 = k1; - continue; - } - - s->state_out_len = 2; - k1 = bz_get_small(s); - s->nblock_used++; - if (s->nblock_used == s->save_nblock+1) { - continue; - } - if (k1 != s->k0) { - s->k0 = k1; - continue; - } - - s->state_out_len = 3; - k1 = bz_get_small(s); - s->nblock_used++; - if (s->nblock_used == s->save_nblock+1) { - continue; - } - if (k1 != s->k0) { - s->k0 = k1; - continue; - } - - k1 = bz_get_small(s); - s->nblock_used++; - s->state_out_len = ((int)k1) + 4; - s->k0 = bz_get_small(s); - s->nblock_used++; - } - } -} - int BZ2_bzDecompress(bz_stream *strm) { DState* s; - if (strm == NULL) { - return BZ_PARAM_ERROR; - } s = strm->state; - if (s == NULL) { - return BZ_PARAM_ERROR; - } - if (s->strm != strm) { - return BZ_PARAM_ERROR; - } while (1) { if (s->state == BZ_X_IDLE) { return BZ_SEQUENCE_ERROR; } if (s->state == BZ_X_OUTPUT) { - if (s->smallDecompress) { - unRLE_obuf_to_output_SMALL(s); - } else { - unRLE_obuf_to_output_FAST(s); - } + unRLE_obuf_to_output_FAST(s); if (s->nblock_used == s->save_nblock+1 && s->state_out_len == 0) { s->calculatedBlockCRC = ~(s->calculatedBlockCRC); - if (s->verbosity >= 3) { - error_msg("{0x%x, 0x%x}", s->storedBlockCRC, s->calculatedBlockCRC); - } - if (s->verbosity >= 2) { - error_msg("]"); - } if (s->calculatedBlockCRC != s->storedBlockCRC) { return BZ_DATA_ERROR; } @@ -2018,10 +1595,6 @@ int BZ2_bzDecompress(bz_stream *strm) if (s->state >= BZ_X_MAGIC_1) { int r = BZ2_decompress(s); if (r == BZ_STREAM_END) { - if (s->verbosity >= 3) { - error_msg("\n combined CRCs: stored = 0x%x, computed = 0x%x", - s->storedCombinedCRC, s->calculatedCombinedCRC ); - } if (s->calculatedCombinedCRC != s->storedCombinedCRC) { return BZ_DATA_ERROR; } @@ -2033,8 +1606,6 @@ int BZ2_bzDecompress(bz_stream *strm) } } - assert_h(6001); - return(0); /*NOTREACHED*/ } @@ -2045,16 +1616,6 @@ int BZ2_bzRead(int *bzerror, void *b, void *buf, int len) bz_seterr(BZ_OK, bzerror, &bzf); - if (bzf == NULL || buf == NULL || len < 0) { - bz_seterr(BZ_PARAM_ERROR, bzerror, &bzf); - return 0; - } - - if (bzf->writing) { - bz_seterr(BZ_SEQUENCE_ERROR, bzerror, &bzf); - return 0; - } - if (len == 0) { bz_seterr(BZ_OK, bzerror, &bzf); return 0; @@ -2104,75 +1665,29 @@ int BZ2_bzRead(int *bzerror, void *b, void *buf, int len) return(0); /*not reached*/ } -void BZ2_bzReadGetUnused(int *bzerror, void *b, void **unused, int *nUnused) -{ - bzFile *bzf = (bzFile*)b; - if (bzf == NULL) { - bz_seterr(BZ_PARAM_ERROR, bzerror, &bzf); - return; - } - if (bzf->lastErr != BZ_STREAM_END) { - bz_seterr(BZ_SEQUENCE_ERROR, bzerror, &bzf); - return; - } - if (unused == NULL || nUnused == NULL) { - bz_seterr(BZ_PARAM_ERROR, bzerror, &bzf); - return; - } - - bz_seterr(BZ_OK, bzerror, &bzf); - *nUnused = bzf->strm.avail_in; - *unused = bzf->strm.next_in; -} - -void *BZ2_bzReadOpen(int *bzerror, FILE *f, int small, void *unused, int nUnused) +void *BZ2_bzReadOpen(int *bzerror, FILE *f, void *unused, int nUnused) { - bzFile *bzf = NULL; + bzFile *bzf = xmalloc(sizeof(bzFile)); int ret; bz_seterr(BZ_OK, bzerror, &bzf); - if (f == NULL || (small != 0 && small != 1) || - (unused != NULL && (nUnused < 0 || nUnused > BZ_MAX_UNUSED)) || -// (verbosity_level < 0 || verbosity_level > 4) || - (unused == NULL && nUnused != 0)) { - bz_seterr(BZ_PARAM_ERROR, bzerror, &bzf); - return NULL; - } - - if (ferror(f)) { - bz_seterr(BZ_IO_ERROR, bzerror, &bzf); - return NULL; - } - - bzf = xmalloc(sizeof(bzFile)); - if (bzf == NULL) { - bz_seterr(BZ_MEM_ERROR, bzerror, &bzf); - return NULL; - } - bz_seterr(BZ_OK, bzerror, &bzf); - bzf->initialisedOk = FALSE; bzf->handle = f; bzf->bufN = 0; - bzf->writing = FALSE; - bzf->strm.bzalloc = NULL; - bzf->strm.bzfree = NULL; - bzf->strm.opaque = NULL; - - while (nUnused > 0) { - bzf->buf[bzf->bufN] = *((unsigned char *)(unused)); bzf->bufN++; - unused = ((void *)( 1 + ((unsigned char *)(unused)) )); - nUnused--; - } - ret = BZ2_bzDecompressInit(&(bzf->strm), small); + ret = BZ2_bzDecompressInit(&(bzf->strm)); if (ret != BZ_OK) { bz_seterr(ret, bzerror, &bzf); free(bzf); return NULL; } + while (nUnused > 0) { + bzf->buf[bzf->bufN] = *((unsigned char *)(unused)); bzf->bufN++; + unused = ((void *)( 1 + ((unsigned char *)(unused)) )); + nUnused--; + } bzf->strm.avail_in = bzf->bufN; bzf->strm.next_in = bzf->buf; @@ -2185,7 +1700,7 @@ static unsigned char uncompressStream(FILE *zStream, FILE *stream) unsigned char unused[BZ_MAX_UNUSED]; unsigned char *unusedTmp; unsigned char obuf[5000]; - void *bzf = NULL; + bzFile *bzf = NULL; int bzerr_dummy; int bzerr; int nread; @@ -2205,7 +1720,7 @@ static unsigned char uncompressStream(FILE *zStream, FILE *stream) } while(1) { - bzf = BZ2_bzReadOpen(&bzerr, zStream, (int)smallMode, unused, nUnused); + bzf = BZ2_bzReadOpen(&bzerr, zStream, unused, nUnused); if (bzf == NULL || bzerr != BZ_OK) { goto errhandler; } @@ -2226,17 +1741,13 @@ static unsigned char uncompressStream(FILE *zStream, FILE *stream) if (bzerr != BZ_STREAM_END) { goto errhandler; } - BZ2_bzReadGetUnused(&bzerr, bzf, (void **)(&unusedTmp), &nUnused); - if (bzerr != BZ_OK) { - panic("decompress:bzReadGetUnused"); - } + nUnused = bzf->strm.avail_in; + unusedTmp = bzf->strm.next_in; + bz_seterr(BZ_OK, &bzerr, &bzf); for (i = 0; i < nUnused; i++) { unused[i] = unusedTmp[i]; } BZ2_bzReadClose(&bzerr, bzf); - if (bzerr != BZ_OK) { - panic("decompress:bzReadGetUnused"); - } if ((nUnused == 0) && myfeof(zStream)) { break; } @@ -2262,37 +1773,24 @@ static unsigned char uncompressStream(FILE *zStream, FILE *stream) goto errhandler_io; } } -// if (verbosity_level >= 2) { -// fprintf(stderr,"\n "); -// } return TRUE; errhandler: BZ2_bzReadClose ( &bzerr_dummy, bzf ); switch (bzerr) { - case BZ_CONFIG_ERROR: - error_msg("bzip2: I'm not configured correctly for this platform!\n" - "\tI require Int32, Int16 and Char to have sizes\n" - "\tof 4, 2 and 1 bytes to run properly, and they don't.\n" - "\tProbably you can fix this by defining them correctly,\n" - "\tand recompiling. Bye!\n" ); - exit(3); case BZ_IO_ERROR: errhandler_io: error_msg("\n%s: I/O or other error, bailing out. " - "Possible reason follows.\n", progName); - perror(progName); + "Possible reason follows.\n", applet_name); + perror(applet_name); cleanUpAndFail(1); case BZ_DATA_ERROR: - error_msg("\n%s: Data integrity error when decompressing.\n", progName); + error_msg("\n%s: Data integrity error when decompressing.\n", applet_name); cleanUpAndFail(2); - case BZ_MEM_ERROR: - error_msg("\n%s: couldn't allocate enough memory\n", progName); - cleanUpAndFail(1); case BZ_UNEXPECTED_EOF: error_msg("\n%s: Compressed file ends unexpectedly;\n\t" - "perhaps it is corrupted? *Possible* reason follows.\n", progName); - perror(progName); + "perhaps it is corrupted? *Possible* reason follows.\n", applet_name); + perror(applet_name); cleanUpAndFail(2); case BZ_DATA_ERROR_MAGIC: if (zStream != stdin) { @@ -2304,16 +1802,10 @@ errhandler_io: if (streamNo == 1) { return FALSE; } else { - if (noisy) { - error_msg("\n%s: %s: trailing garbage after EOF ignored\n", progName, inName ); - } - return TRUE; + return TRUE; } - default: - panic ( "decompress:unexpected error" ); } - panic("decompress:end"); return(TRUE); /*notreached*/ } |