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Add support for xz compressed files
This commit is contained in:
Jukka Ojanen
parent
4e224dec82
commit
3cacbe0e1f
@ -1067,6 +1067,8 @@ typedef struct link_speed
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// file handling
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typedef struct xzfile xzfile_t;
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typedef struct hc_fp
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{
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int fd;
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@ -1074,6 +1076,7 @@ typedef struct hc_fp
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FILE *pfp; // plain fp
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gzFile gfp; // gzip fp
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unzFile ufp; // zip fp
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xzfile_t *xfp; // xz fp
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int bom_size;
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@ -370,7 +370,7 @@ LINUX_OBJS := $(foreach OBJ,$(OBJS_ALL),obj/$(OBJ).LINUX.o)
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WIN_OBJS := $(foreach OBJ,$(OBJS_ALL),obj/$(OBJ).WIN.o)
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ifeq ($(USE_SYSTEM_LZMA),0)
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OBJS_LZMA := Alloc Lzma2Dec LzmaDec
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OBJS_LZMA := 7zCrc 7zCrcOpt 7zFile 7zStream Alloc Bra Bra86 BraIA64 CpuArch Delta Lzma2Dec LzmaDec MtDec Sha256 Sha256Opt Threads Xz XzCrc64 XzCrc64Opt XzDec
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NATIVE_OBJS += $(foreach OBJ,$(OBJS_LZMA),obj/$(OBJ).LZMA.NATIVE.o)
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LINUX_OBJS += $(foreach OBJ,$(OBJS_LZMA),obj/$(OBJ).LZMA.LINUX.o)
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@ -9,6 +9,38 @@
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#include "shared.h"
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#include "filehandling.h"
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#include <Alloc.h>
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#include <7ZCrc.h>
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#include <7zFile.h>
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#include <xz.h>
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/* Maybe _LZMA_NO_SYSTEM_SIZE_T defined? */
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#if defined (__clang__) || defined (__GNUC__)
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#include <assert.h>
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_Static_assert(sizeof(size_t) == sizeof(SizeT), "Check why sizeof(size_t) != sizeof(SizeT)");
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#endif
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#ifndef XZFILE_BUFFER_SIZE
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#define XZFILE_BUFFER_SIZE 1024 * 1024
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#endif
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static bool xz_initialized = false;
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static const ISzAlloc xz_alloc = { hc_lzma_alloc, hc_lzma_free };
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struct xzfile
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{
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CAlignOffsetAlloc alloc;
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Byte *inBuf;
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bool inEof;
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SizeT inLen;
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SizeT inPos;
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Int64 inProcessed;
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CFileSeqInStream inStream;
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Int64 outProcessed;
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CXzUnpacker state;
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};
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#if defined (__CYGWIN__)
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// workaround for zlib with cygwin build
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int _wopen (const char *path, int oflag, ...)
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@ -30,6 +62,7 @@ bool hc_fopen (HCFILE *fp, const char *path, const char *mode)
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fp->pfp = NULL;
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fp->gfp = NULL;
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fp->ufp = NULL;
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fp->xfp = NULL;
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fp->bom_size = 0;
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fp->path = NULL;
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fp->mode = NULL;
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@ -73,6 +106,7 @@ bool hc_fopen (HCFILE *fp, const char *path, const char *mode)
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bool is_gzip = false;
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bool is_zip = false;
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bool is_xz = false;
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int fd_tmp = open (path, O_RDONLY);
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@ -84,10 +118,11 @@ bool hc_fopen (HCFILE *fp, const char *path, const char *mode)
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{
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if (check[0] == 0x1f && check[1] == 0x8b && check[2] == 0x08) is_gzip = true;
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if (check[0] == 0x50 && check[1] == 0x4b && check[2] == 0x03 && check[3] == 0x04) is_zip = true;
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if (memcmp(check, XZ_SIG, XZ_SIG_SIZE) == 0) is_xz = true;
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// compressed files with BOM will be undetected!
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if (is_gzip == false && is_zip == false)
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if (is_gzip == false && is_zip == false && is_xz == false)
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{
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fp->bom_size = hc_string_bom_size (check);
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}
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@ -107,32 +142,101 @@ bool hc_fopen (HCFILE *fp, const char *path, const char *mode)
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if (fp->fd == -1) return false;
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if (is_zip == false)
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if (is_gzip)
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{
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if (is_gzip)
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{
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if ((fp->gfp = gzdopen (fp->fd, mode)) == NULL) return false;
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}
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else
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{
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if ((fp->pfp = fdopen (fp->fd, mode)) == NULL) return false;
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if (fp->bom_size)
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{
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// atm just skip bom
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const int nread = fread (check, sizeof (char), fp->bom_size, fp->pfp);
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if (nread != fp->bom_size) return false;
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}
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}
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if ((fp->gfp = gzdopen (fp->fd, mode)) == NULL) return false;
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}
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else
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else if (is_zip)
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{
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if ((fp->ufp = unzOpen64 (path)) == NULL) return false;
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if (unzOpenCurrentFile (fp->ufp) != UNZ_OK) return false;
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}
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else if (is_xz)
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{
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if (xz_initialized == false)
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{
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CrcGenerateTable ();
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xz_initialized = true;
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}
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xzfile_t *xfp = (xzfile_t *) hccalloc (1, sizeof(*xfp));
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if (xfp == NULL) return false;
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/* prepare cache line aligned memory allocator */
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AlignOffsetAlloc_CreateVTable (&xfp->alloc);
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xfp->alloc.numAlignBits = 7;
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xfp->alloc.baseAlloc = &xz_alloc;
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ISzAllocPtr alloc = &xfp->alloc.vt;
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xfp->inBuf = (Byte *) ISzAlloc_Alloc (alloc, XZFILE_BUFFER_SIZE);
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if (xfp->inBuf == NULL)
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{
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hcfree (xfp);
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close (fp->fd);
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return false;
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}
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/* open file */
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CFileSeqInStream *inStream = &xfp->inStream;
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FileSeqInStream_CreateVTable (inStream);
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CSzFile *file = &inStream->file;
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File_Construct (file);
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WRes wres = InFile_Open (file, path);
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if (wres != SZ_OK)
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{
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ISzAlloc_Free (alloc, xfp->inBuf);
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hcfree (xfp);
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close (fp->fd);
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return false;
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}
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/* fill buffer */
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SizeT inLen = XZFILE_BUFFER_SIZE;
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SRes res = ISeqInStream_Read (&inStream->vt, xfp->inBuf, &inLen);
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if (res != SZ_OK || inLen == 0)
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{
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File_Close (file);
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ISzAlloc_Free (alloc, xfp->inBuf);
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hcfree (xfp);
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close (fp->fd);
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return false;
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}
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xfp->inLen = inLen;
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/* read headers */
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SizeT outLen = 0;
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ECoderStatus status;
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CXzUnpacker *state = &xfp->state;
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XzUnpacker_Construct (state, alloc);
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res = XzUnpacker_Code (state, NULL, &outLen, xfp->inBuf, &inLen, false, CODER_FINISH_ANY, &status);
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if (res != SZ_OK)
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{
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XzUnpacker_Free (state);
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File_Close (file);
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ISzAlloc_Free (alloc, xfp->inBuf);
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hcfree (xfp);
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close (fp->fd);
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return false;
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}
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xfp->inPos = inLen;
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xfp->inProcessed = inLen;
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fp->xfp = xfp;
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}
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else
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{
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if ((fp->pfp = fdopen (fp->fd, mode)) == NULL) return false;
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if (fp->bom_size)
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{
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// atm just skip bom
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const int nread = fread (check, sizeof (char), fp->bom_size, fp->pfp);
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if (nread != fp->bom_size) return false;
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}
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}
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fp->path = path;
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fp->mode = mode;
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@ -149,6 +253,7 @@ bool hc_fopen_raw (HCFILE *fp, const char *path, const char *mode)
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fp->pfp = NULL;
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fp->gfp = NULL;
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fp->ufp = NULL;
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fp->xfp = NULL;
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fp->bom_size = 0;
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fp->path = NULL;
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fp->mode = NULL;
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@ -213,17 +318,9 @@ size_t hc_fread (void *ptr, size_t size, size_t nmemb, HCFILE *fp)
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if (fp == NULL) return n;
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if (fp->gfp)
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{
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n = gzfread (ptr, size, nmemb, fp->gfp);
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}
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else if (fp->ufp)
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{
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unsigned s = size * nmemb;
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if (ptr == NULL || size == 0 || nmemb == 0) return 0;
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n = unzReadCurrentFile (fp->ufp, ptr, s);
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}
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else if (fp->pfp)
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if (fp->pfp)
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{
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#if defined (_WIN)
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@ -267,6 +364,50 @@ size_t hc_fread (void *ptr, size_t size, size_t nmemb, HCFILE *fp)
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n = fread (ptr, size, nmemb, fp->pfp);
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#endif
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}
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else if (fp->gfp)
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{
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n = gzfread (ptr, size, nmemb, fp->gfp);
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}
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else if (fp->ufp)
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{
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unsigned s = size * nmemb;
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n = unzReadCurrentFile (fp->ufp, ptr, s);
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}
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else if (fp->xfp)
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{
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Byte *outBuf = (Byte *) ptr;
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SizeT outLen = (SizeT) size * nmemb;
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SizeT outPos = 0;
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SRes res = SZ_OK;
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xzfile_t *xfp = fp->xfp;
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do
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{
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/* fill buffer if needed */
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if (xfp->inLen == xfp->inPos && !xfp->inEof)
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{
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xfp->inPos = 0;
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xfp->inLen = XZFILE_BUFFER_SIZE;
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res = ISeqInStream_Read (&xfp->inStream.vt, xfp->inBuf, &xfp->inLen);
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if (res != SZ_OK || xfp->inLen == 0) xfp->inEof = true;
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}
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/* decode */
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ECoderStatus status;
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SizeT inLeft = xfp->inLen - xfp->inPos;
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SizeT outLeft = outLen - outPos;
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res = XzUnpacker_Code (&xfp->state, outBuf + outPos, &outLeft, xfp->inBuf + xfp->inPos, &inLeft, inLeft == 0, CODER_FINISH_ANY, &status);
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xfp->inPos += inLeft;
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xfp->inProcessed += inLeft;
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if (res != SZ_OK) return -1;
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if (inLeft == 0 && outLeft == 0) break;
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outPos += outLeft;
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xfp->outProcessed += outLeft;
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} while (outPos < outLen);
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n = outPos;
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}
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return n;
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}
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@ -277,14 +418,7 @@ size_t hc_fwrite (const void *ptr, size_t size, size_t nmemb, HCFILE *fp)
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if (fp == NULL) return n;
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if (fp->gfp)
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{
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n = gzfwrite (ptr, size, nmemb, fp->gfp);
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}
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else if (fp->ufp)
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{
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}
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else if (fp->pfp)
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if (fp->pfp)
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{
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#if defined (_WIN)
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@ -328,6 +462,10 @@ size_t hc_fwrite (const void *ptr, size_t size, size_t nmemb, HCFILE *fp)
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n = fwrite (ptr, size, nmemb, fp->pfp);
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#endif
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}
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else if (fp->gfp)
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{
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n = gzfwrite (ptr, size, nmemb, fp->gfp);
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}
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return n;
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}
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@ -338,7 +476,11 @@ int hc_fseek (HCFILE *fp, off_t offset, int whence)
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if (fp == NULL) return r;
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if (fp->gfp)
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if (fp->pfp)
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{
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r = fseeko (fp->pfp, offset, whence);
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}
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else if (fp->gfp)
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{
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r = gzseek (fp->gfp, offset, whence);
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}
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@ -363,9 +505,9 @@ int hc_fseek (HCFILE *fp, off_t offset, int whence)
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// r = unzSetOffset (fp->ufp, offset);
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*/
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}
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else if (fp->pfp)
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else if (fp->xfp)
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{
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r = fseeko (fp->pfp, offset, whence);
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/* TODO */
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}
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return r;
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@ -375,7 +517,11 @@ void hc_rewind (HCFILE *fp)
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{
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if (fp == NULL) return;
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if (fp->gfp)
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if (fp->pfp)
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{
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rewind (fp->pfp);
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}
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else if (fp->gfp)
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{
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gzrewind (fp->gfp);
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}
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@ -383,9 +529,37 @@ void hc_rewind (HCFILE *fp)
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{
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unzGoToFirstFile (fp->ufp);
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}
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else if (fp->pfp)
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else if (fp->xfp)
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{
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rewind (fp->pfp);
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xzfile_t *xfp = fp->xfp;
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/* cleanup */
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xfp->inEof = false;
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xfp->inLen = 0;
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xfp->inPos = 0;
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xfp->inProcessed = 0;
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xfp->outProcessed = 0;
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/* reset */
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Int64 begin = 0;
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CFileSeqInStream *inStream = &xfp->inStream;
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File_Seek (&inStream->file, &begin, SZ_SEEK_SET);
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CXzUnpacker *state = &xfp->state;
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XzUnpacker_Init (&xfp->state);
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/* fill buffer */
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SizeT inLen = XZFILE_BUFFER_SIZE;
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SRes res = ISeqInStream_Read (&inStream->vt, xfp->inBuf, &inLen);
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if (res != SZ_OK || inLen == 0) return;
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xfp->inLen = inLen;
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/* read headers */
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SizeT outLen = 0;
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ECoderStatus status;
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XzUnpacker_Code (state, NULL, &outLen, xfp->inBuf, &inLen, false, CODER_FINISH_ANY, &status);
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xfp->inPos = inLen;
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xfp->inProcessed = inLen;
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}
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}
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@ -393,6 +567,7 @@ int hc_fstat (HCFILE *fp, struct stat *buf)
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{
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if (fp == NULL || buf == NULL || fp->fd == -1) return -1;
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/* TODO: For compressed files hc_ftell() reports uncompressed bytes, but hc_fstat() reports compressed bytes */
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return fstat (fp->fd, buf);
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}
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@ -402,7 +577,11 @@ off_t hc_ftell (HCFILE *fp)
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if (fp == NULL) return -1;
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if (fp->gfp)
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if (fp->pfp)
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{
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n = ftello (fp->pfp);
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}
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else if (fp->gfp)
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{
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n = (off_t) gztell (fp->gfp);
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}
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@ -410,9 +589,11 @@ off_t hc_ftell (HCFILE *fp)
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{
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n = unztell (fp->ufp);
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}
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else if (fp->pfp)
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else if (fp->xfp)
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{
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n = ftello (fp->pfp);
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/* uncompressed bytes */
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const xzfile_t *xfp = fp->xfp;
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n = (off_t) xfp->outProcessed;
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}
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return n;
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@ -424,28 +605,29 @@ int hc_fputc (int c, HCFILE *fp)
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if (fp == NULL) return r;
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if (fp->gfp)
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{
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r = gzputc (fp->gfp, c);
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}
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else if (fp->ufp)
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{
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}
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else if (fp->pfp)
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if (fp->pfp)
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{
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r = fputc (c, fp->pfp);
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}
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else if (fp->gfp)
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{
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r = gzputc (fp->gfp, c);
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}
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return r;
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}
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int hc_fgetc (HCFILE *fp)
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{
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int r = -1;
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int r = EOF;
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if (fp == NULL) return r;
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if (fp->gfp)
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if (fp->pfp)
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{
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r = fgetc (fp->pfp);
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}
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else if (fp->gfp)
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{
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r = gzgetc (fp->gfp);
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}
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@ -455,9 +637,32 @@ int hc_fgetc (HCFILE *fp)
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if (unzReadCurrentFile (fp->ufp, &c, 1) == 1) r = (int) c;
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}
|
||||
else if (fp->pfp)
|
||||
else if (fp->xfp)
|
||||
{
|
||||
r = fgetc (fp->pfp);
|
||||
Byte out;
|
||||
SRes res = SZ_OK;
|
||||
xzfile_t *xfp = fp->xfp;
|
||||
|
||||
/* fill buffer if needed */
|
||||
if (xfp->inLen == xfp->inPos && !xfp->inEof)
|
||||
{
|
||||
xfp->inPos = 0;
|
||||
xfp->inLen = XZFILE_BUFFER_SIZE;
|
||||
res = ISeqInStream_Read (&xfp->inStream.vt, xfp->inBuf, &xfp->inLen);
|
||||
if (res != SZ_OK || xfp->inLen == 0) xfp->inEof = true;
|
||||
}
|
||||
|
||||
/* decode single byte */
|
||||
ECoderStatus status;
|
||||
SizeT inLeft = xfp->inLen - xfp->inPos;
|
||||
SizeT outLeft = 1;
|
||||
res = XzUnpacker_Code (&xfp->state, &out, &outLeft, xfp->inBuf + xfp->inPos, &inLeft, inLeft == 0, CODER_FINISH_ANY, &status);
|
||||
if (inLeft == 0 && outLeft == 0) return r;
|
||||
xfp->inPos += inLeft;
|
||||
xfp->inProcessed += inLeft;
|
||||
if (res != SZ_OK) return r;
|
||||
xfp->outProcessed++;
|
||||
r = (int) out;
|
||||
}
|
||||
|
||||
return r;
|
||||
@ -467,9 +672,13 @@ char *hc_fgets (char *buf, int len, HCFILE *fp)
|
||||
{
|
||||
char *r = NULL;
|
||||
|
||||
if (fp == NULL) return r;
|
||||
if (fp == NULL || len <= 0) return r;
|
||||
|
||||
if (fp->gfp)
|
||||
if (fp->pfp)
|
||||
{
|
||||
r = fgets (buf, len, fp->pfp);
|
||||
}
|
||||
else if (fp->gfp)
|
||||
{
|
||||
r = gzgets (fp->gfp, buf, len);
|
||||
}
|
||||
@ -477,9 +686,46 @@ char *hc_fgets (char *buf, int len, HCFILE *fp)
|
||||
{
|
||||
if (unzReadCurrentFile (fp->ufp, buf, len) > 0) r = buf;
|
||||
}
|
||||
else if (fp->pfp)
|
||||
else if (fp->xfp)
|
||||
{
|
||||
r = fgets (buf, len, fp->pfp);
|
||||
Byte *outBuf = (Byte *) buf;
|
||||
SizeT outLen = (SizeT) len - 1;
|
||||
SRes res = SZ_OK;
|
||||
xzfile_t *xfp = fp->xfp;
|
||||
|
||||
while (outLen > 0)
|
||||
{
|
||||
/* fill buffer if needed */
|
||||
if (xfp->inLen == xfp->inPos && !xfp->inEof)
|
||||
{
|
||||
xfp->inPos = 0;
|
||||
xfp->inLen = XZFILE_BUFFER_SIZE;
|
||||
res = ISeqInStream_Read (&xfp->inStream.vt, xfp->inBuf, &xfp->inLen);
|
||||
if (res != SZ_OK || xfp->inLen == 0) xfp->inEof = true;
|
||||
}
|
||||
|
||||
/* decode single byte */
|
||||
ECoderStatus status;
|
||||
SizeT inLeft = xfp->inLen - xfp->inPos;
|
||||
SizeT outLeft = 1;
|
||||
res = XzUnpacker_Code (&xfp->state, outBuf, &outLeft, xfp->inBuf + xfp->inPos, &inLeft, inLeft == 0, CODER_FINISH_ANY, &status);
|
||||
if (inLeft == 0 && outLeft == 0) break;
|
||||
xfp->inPos += inLeft;
|
||||
xfp->inProcessed += inLeft;
|
||||
if (res != SZ_OK) break;
|
||||
xfp->outProcessed++;
|
||||
if (*outBuf++ == '\n')
|
||||
{
|
||||
/* success */
|
||||
r = buf;
|
||||
break;
|
||||
}
|
||||
|
||||
outLen--;
|
||||
}
|
||||
|
||||
/* always NULL terminate */
|
||||
*outBuf = 0;
|
||||
}
|
||||
|
||||
return r;
|
||||
@ -491,17 +737,14 @@ int hc_vfprintf (HCFILE *fp, const char *format, va_list ap)
|
||||
|
||||
if (fp == NULL) return r;
|
||||
|
||||
if (fp->gfp)
|
||||
{
|
||||
r = gzvprintf (fp->gfp, format, ap);
|
||||
}
|
||||
else if (fp->ufp)
|
||||
{
|
||||
}
|
||||
else if (fp->pfp)
|
||||
if (fp->pfp)
|
||||
{
|
||||
r = vfprintf (fp->pfp, format, ap);
|
||||
}
|
||||
else if (fp->gfp)
|
||||
{
|
||||
r = gzvprintf (fp->gfp, format, ap);
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
@ -516,17 +759,14 @@ int hc_fprintf (HCFILE *fp, const char *format, ...)
|
||||
|
||||
va_start (ap, format);
|
||||
|
||||
if (fp->gfp)
|
||||
{
|
||||
r = gzvprintf (fp->gfp, format, ap);
|
||||
}
|
||||
else if (fp->ufp)
|
||||
{
|
||||
}
|
||||
else if (fp->pfp)
|
||||
if (fp->pfp)
|
||||
{
|
||||
r = vfprintf (fp->pfp, format, ap);
|
||||
}
|
||||
else if (fp->gfp)
|
||||
{
|
||||
r = gzvprintf (fp->gfp, format, ap);
|
||||
}
|
||||
|
||||
va_end (ap);
|
||||
|
||||
@ -557,7 +797,11 @@ int hc_feof (HCFILE *fp)
|
||||
|
||||
if (fp == NULL) return r;
|
||||
|
||||
if (fp->gfp)
|
||||
if (fp->pfp)
|
||||
{
|
||||
r = feof (fp->pfp);
|
||||
}
|
||||
else if (fp->gfp)
|
||||
{
|
||||
r = gzeof (fp->gfp);
|
||||
}
|
||||
@ -565,9 +809,10 @@ int hc_feof (HCFILE *fp)
|
||||
{
|
||||
r = unzeof (fp->ufp);
|
||||
}
|
||||
else if (fp->pfp)
|
||||
else if (fp->xfp)
|
||||
{
|
||||
r = feof (fp->pfp);
|
||||
const xzfile_t *xfp = fp->xfp;
|
||||
r = (xfp->inEof && xfp->inPos == xfp->inLen);
|
||||
}
|
||||
|
||||
return r;
|
||||
@ -577,17 +822,14 @@ void hc_fflush (HCFILE *fp)
|
||||
{
|
||||
if (fp == NULL) return;
|
||||
|
||||
if (fp->gfp)
|
||||
{
|
||||
gzflush (fp->gfp, Z_SYNC_FLUSH);
|
||||
}
|
||||
else if (fp->ufp)
|
||||
{
|
||||
}
|
||||
else if (fp->pfp)
|
||||
if (fp->pfp)
|
||||
{
|
||||
fflush (fp->pfp);
|
||||
}
|
||||
else if (fp->gfp)
|
||||
{
|
||||
gzflush (fp->gfp, Z_SYNC_FLUSH);
|
||||
}
|
||||
}
|
||||
|
||||
void hc_fsync (HCFILE *fp)
|
||||
@ -610,7 +852,11 @@ void hc_fclose (HCFILE *fp)
|
||||
{
|
||||
if (fp == NULL) return;
|
||||
|
||||
if (fp->gfp)
|
||||
if (fp->pfp)
|
||||
{
|
||||
fclose (fp->pfp);
|
||||
}
|
||||
else if (fp->gfp)
|
||||
{
|
||||
gzclose (fp->gfp);
|
||||
}
|
||||
@ -622,15 +868,21 @@ void hc_fclose (HCFILE *fp)
|
||||
|
||||
close (fp->fd);
|
||||
}
|
||||
else if (fp->pfp)
|
||||
else if (fp->xfp)
|
||||
{
|
||||
fclose (fp->pfp);
|
||||
xzfile_t *xfp = fp->xfp;
|
||||
XzUnpacker_Free (&xfp->state);
|
||||
File_Close (&xfp->inStream.file);
|
||||
ISzAlloc_Free (&xfp->alloc.vt, xfp->inBuf);
|
||||
hcfree (xfp);
|
||||
close (fp->fd);
|
||||
}
|
||||
|
||||
fp->fd = -1;
|
||||
fp->pfp = NULL;
|
||||
fp->gfp = NULL;
|
||||
fp->ufp = NULL;
|
||||
fp->xfp = NULL;
|
||||
|
||||
fp->path = NULL;
|
||||
fp->mode = NULL;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user