--- /dev/null
+/* ioapi.c -- IO base function header for compress/uncompress .zip
+ part of the MiniZip project
+
+ Copyright (C) 2012-2017 Nathan Moinvaziri
+ https://github.com/nmoinvaz/minizip
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson
+ http://result42.com
+ Copyright (C) 1998-2010 Gilles Vollant
+ http://www.winimage.com/zLibDll/minizip.html
+
+ This program is distributed under the terms of the same license as zlib.
+ See the accompanying LICENSE file for the full text of the license.
+*/
+
+#include <stdlib.h>
+#include <string.h>
+
+#if defined unix || defined __APPLE__
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+#include "ioapi.h"
+
+#if defined(_WIN32)
+# define snprintf _snprintf
+#endif
+
+voidpf call_zopen64(const zlib_filefunc64_32_def *pfilefunc, const void *filename, int mode)
+{
+ if (pfilefunc->zfile_func64.zopen64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque, filename, mode);
+ return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque, (const char*)filename, mode);
+}
+
+voidpf call_zopendisk64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, uint32_t number_disk, int mode)
+{
+ if (pfilefunc->zfile_func64.zopendisk64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zopendisk64_file)) (pfilefunc->zfile_func64.opaque, filestream, number_disk, mode);
+ return (*(pfilefunc->zopendisk32_file))(pfilefunc->zfile_func64.opaque, filestream, number_disk, mode);
+}
+
+long call_zseek64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, uint64_t offset, int origin)
+{
+ uint32_t offset_truncated = 0;
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
+ offset_truncated = (uint32_t)offset;
+ if (offset_truncated != offset)
+ return -1;
+ return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream, offset_truncated, origin);
+}
+
+uint64_t call_ztell64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream)
+{
+ uint64_t position;
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque, filestream);
+ position = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque, filestream);
+ if ((position) == UINT32_MAX)
+ return (uint64_t)-1;
+ return position;
+}
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def *p_filefunc64_32, const zlib_filefunc_def *p_filefunc32)
+{
+ p_filefunc64_32->zfile_func64.zopen64_file = NULL;
+ p_filefunc64_32->zfile_func64.zopendisk64_file = NULL;
+ p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
+ p_filefunc64_32->zopendisk32_file = p_filefunc32->zopendisk_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
+ p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
+ p_filefunc64_32->zfile_func64.ztell64_file = NULL;
+ p_filefunc64_32->zfile_func64.zseek64_file = NULL;
+ p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
+ p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
+ p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
+}
+
+static voidpf ZCALLBACK fopen_file_func(ZIP_UNUSED voidpf opaque, const char *filename, int mode);
+static uint32_t ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uint32_t size);
+static uint32_t ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void *buf, uint32_t size);
+static uint64_t ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream);
+static long ZCALLBACK fseek64_file_func(voidpf opaque, voidpf stream, uint64_t offset, int origin);
+static int ZCALLBACK fclose_file_func(voidpf opaque, voidpf stream);
+static int ZCALLBACK ferror_file_func(voidpf opaque, voidpf stream);
+
+typedef struct
+{
+ FILE *file;
+ int filenameLength;
+ void *filename;
+} FILE_IOPOSIX;
+
+static voidpf file_build_ioposix(FILE *file, const char *filename)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ if (file == NULL)
+ return NULL;
+ ioposix = (FILE_IOPOSIX*)malloc(sizeof(FILE_IOPOSIX));
+ ioposix->file = file;
+ ioposix->filenameLength = (int)strlen(filename) + 1;
+ ioposix->filename = (char*)malloc(ioposix->filenameLength * sizeof(char));
+ strncpy((char*)ioposix->filename, filename, ioposix->filenameLength);
+ return (voidpf)ioposix;
+}
+
+static voidpf ZCALLBACK fopen_file_func(ZIP_UNUSED voidpf opaque, const char *filename, int mode)
+{
+ FILE* file = NULL;
+ const char *mode_fopen = NULL;
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ)
+ mode_fopen = "rb";
+ else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ mode_fopen = "r+b";
+ else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ mode_fopen = "wb";
+
+ if ((filename != NULL) && (mode_fopen != NULL))
+ {
+ file = fopen(filename, mode_fopen);
+ return file_build_ioposix(file, filename);
+ }
+ return file;
+}
+
+static voidpf ZCALLBACK fopen64_file_func(ZIP_UNUSED voidpf opaque, const void *filename, int mode)
+{
+ FILE* file = NULL;
+ const char *mode_fopen = NULL;
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ)
+ mode_fopen = "rb";
+ else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ mode_fopen = "r+b";
+ else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ mode_fopen = "wb";
+
+ if ((filename != NULL) && (mode_fopen != NULL))
+ {
+ file = fopen64((const char*)filename, mode_fopen);
+ return file_build_ioposix(file, (const char*)filename);
+ }
+ return file;
+}
+
+static voidpf ZCALLBACK fopendisk64_file_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ char *diskFilename = NULL;
+ voidpf ret = NULL;
+ int i = 0;
+
+ if (stream == NULL)
+ return NULL;
+ ioposix = (FILE_IOPOSIX*)stream;
+ diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char));
+ strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength);
+ for (i = ioposix->filenameLength - 1; i >= 0; i -= 1)
+ {
+ if (diskFilename[i] != '.')
+ continue;
+ snprintf(&diskFilename[i], ioposix->filenameLength - i, ".z%02u", number_disk + 1);
+ break;
+ }
+ if (i >= 0)
+ ret = fopen64_file_func(opaque, diskFilename, mode);
+ free(diskFilename);
+ return ret;
+}
+
+static voidpf ZCALLBACK fopendisk_file_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ char *diskFilename = NULL;
+ voidpf ret = NULL;
+ int i = 0;
+
+ if (stream == NULL)
+ return NULL;
+ ioposix = (FILE_IOPOSIX*)stream;
+ diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char));
+ strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength);
+ for (i = ioposix->filenameLength - 1; i >= 0; i -= 1)
+ {
+ if (diskFilename[i] != '.')
+ continue;
+ snprintf(&diskFilename[i], ioposix->filenameLength - i, ".z%02u", number_disk + 1);
+ break;
+ }
+ if (i >= 0)
+ ret = fopen_file_func(opaque, diskFilename, mode);
+ free(diskFilename);
+ return ret;
+}
+
+static uint32_t ZCALLBACK fread_file_func(ZIP_UNUSED voidpf opaque, voidpf stream, void* buf, uint32_t size)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ uint32_t read = (uint32_t)-1;
+ if (stream == NULL)
+ return read;
+ ioposix = (FILE_IOPOSIX*)stream;
+ read = (uint32_t)fread(buf, 1, (size_t)size, ioposix->file);
+ return read;
+}
+
+static uint32_t ZCALLBACK fwrite_file_func(ZIP_UNUSED voidpf opaque, voidpf stream, const void *buf, uint32_t size)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ uint32_t written = (uint32_t)-1;
+ if (stream == NULL)
+ return written;
+ ioposix = (FILE_IOPOSIX*)stream;
+ written = (uint32_t)fwrite(buf, 1, (size_t)size, ioposix->file);
+ return written;
+}
+
+static long ZCALLBACK ftell_file_func(ZIP_UNUSED voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ long ret = -1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = ftell(ioposix->file);
+ return ret;
+}
+
+static uint64_t ZCALLBACK ftell64_file_func(ZIP_UNUSED voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ uint64_t ret = (uint64_t)-1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = ftello64(ioposix->file);
+ return ret;
+}
+
+static long ZCALLBACK fseek_file_func(ZIP_UNUSED voidpf opaque, voidpf stream, uint32_t offset, int origin)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int fseek_origin = 0;
+ long ret = 0;
+
+ if (stream == NULL)
+ return -1;
+ ioposix = (FILE_IOPOSIX*)stream;
+
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR:
+ fseek_origin = SEEK_CUR;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END:
+ fseek_origin = SEEK_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET:
+ fseek_origin = SEEK_SET;
+ break;
+ default:
+ return -1;
+ }
+ if (fseek(ioposix->file, offset, fseek_origin) != 0)
+ ret = -1;
+ return ret;
+}
+
+static long ZCALLBACK fseek64_file_func(ZIP_UNUSED voidpf opaque, voidpf stream, uint64_t offset, int origin)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int fseek_origin = 0;
+ long ret = 0;
+
+ if (stream == NULL)
+ return -1;
+ ioposix = (FILE_IOPOSIX*)stream;
+
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR:
+ fseek_origin = SEEK_CUR;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END:
+ fseek_origin = SEEK_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET:
+ fseek_origin = SEEK_SET;
+ break;
+ default:
+ return -1;
+ }
+
+ if (fseeko64(ioposix->file, offset, fseek_origin) != 0)
+ ret = -1;
+
+ return ret;
+}
+
+static int ZCALLBACK fclose_file_func(ZIP_UNUSED voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int ret = -1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ if (ioposix->filename != NULL)
+ free(ioposix->filename);
+ ret = fclose(ioposix->file);
+ free(ioposix);
+ return ret;
+}
+
+static int ZCALLBACK ferror_file_func(ZIP_UNUSED voidpf opaque, voidpf stream)
+{
+ FILE_IOPOSIX *ioposix = NULL;
+ int ret = -1;
+ if (stream == NULL)
+ return ret;
+ ioposix = (FILE_IOPOSIX*)stream;
+ ret = ferror(ioposix->file);
+ return ret;
+}
+
+void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen_file = fopen_file_func;
+ pzlib_filefunc_def->zopendisk_file = fopendisk_file_func;
+ pzlib_filefunc_def->zread_file = fread_file_func;
+ pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+ pzlib_filefunc_def->ztell_file = ftell_file_func;
+ pzlib_filefunc_def->zseek_file = fseek_file_func;
+ pzlib_filefunc_def->zclose_file = fclose_file_func;
+ pzlib_filefunc_def->zerror_file = ferror_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_fopen64_filefunc(zlib_filefunc64_def *pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen64_file = fopen64_file_func;
+ pzlib_filefunc_def->zopendisk64_file = fopendisk64_file_func;
+ pzlib_filefunc_def->zread_file = fread_file_func;
+ pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+ pzlib_filefunc_def->ztell64_file = ftell64_file_func;
+ pzlib_filefunc_def->zseek64_file = fseek64_file_func;
+ pzlib_filefunc_def->zclose_file = fclose_file_func;
+ pzlib_filefunc_def->zerror_file = ferror_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
fnp / wl-app.git / blobdiff