summaryrefslogtreecommitdiffstats
path: root/quazip/qioapi.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'quazip/qioapi.cpp')
-rw-r--r--quazip/qioapi.cpp146
1 files changed, 146 insertions, 0 deletions
diff --git a/quazip/qioapi.cpp b/quazip/qioapi.cpp
new file mode 100644
index 00000000..f254c34d
--- /dev/null
+++ b/quazip/qioapi.cpp
@@ -0,0 +1,146 @@
+/* ioapi.c -- IO base function header for compress/uncompress .zip
+ files using zlib + zip or unzip API
+
+ Version 1.01e, February 12th, 2005
+
+ Copyright (C) 1998-2005 Gilles Vollant
+
+ Modified by Sergey A. Tachenov to integrate with Qt.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "zlib.h"
+#include "ioapi.h"
+#include "quazip_global.h"
+#include <QIODevice>
+
+
+/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+
+#ifndef SEEK_CUR
+#define SEEK_CUR 1
+#endif
+
+#ifndef SEEK_END
+#define SEEK_END 2
+#endif
+
+#ifndef SEEK_SET
+#define SEEK_SET 0
+#endif
+
+voidpf ZCALLBACK qiodevice_open_file_func (
+ voidpf opaque UNUSED,
+ voidpf file,
+ int mode)
+{
+ QIODevice *iodevice = reinterpret_cast<QIODevice*>(file);
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+ iodevice->open(QIODevice::ReadOnly);
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ iodevice->open(QIODevice::ReadWrite);
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ iodevice->open(QIODevice::WriteOnly);
+
+ if (iodevice->isOpen()) {
+ if (iodevice->isSequential()) {
+ iodevice->close();
+ return NULL;
+ } else {
+ return iodevice;
+ }
+ } else
+ return NULL;
+}
+
+
+uLong ZCALLBACK qiodevice_read_file_func (
+ voidpf opaque UNUSED,
+ voidpf stream,
+ void* buf,
+ uLong size)
+{
+ uLong ret;
+ ret = (uLong)((QIODevice*)stream)->read((char*)buf,size);
+ return ret;
+}
+
+
+uLong ZCALLBACK qiodevice_write_file_func (
+ voidpf opaque UNUSED,
+ voidpf stream,
+ const void* buf,
+ uLong size)
+{
+ uLong ret;
+ ret = (uLong)((QIODevice*)stream)->write((char*)buf,size);
+ return ret;
+}
+
+uLong ZCALLBACK qiodevice_tell_file_func (
+ voidpf opaque UNUSED,
+ voidpf stream)
+{
+ uLong ret;
+ ret = ((QIODevice*)stream)->pos();
+ return ret;
+}
+
+int ZCALLBACK qiodevice_seek_file_func (
+ voidpf opaque UNUSED,
+ voidpf stream,
+ uLong offset,
+ int origin)
+{
+ uLong qiodevice_seek_result=0;
+ int ret;
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR :
+ qiodevice_seek_result = ((QIODevice*)stream)->pos() + offset;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END :
+ qiodevice_seek_result = ((QIODevice*)stream)->size() - offset;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET :
+ qiodevice_seek_result = offset;
+ break;
+ default: return -1;
+ }
+ ret = !((QIODevice*)stream)->seek(qiodevice_seek_result);
+ return ret;
+}
+
+int ZCALLBACK qiodevice_close_file_func (
+ voidpf opaque UNUSED,
+ voidpf stream)
+{
+ ((QIODevice*)stream)->close();
+ return 0;
+}
+
+int ZCALLBACK qiodevice_error_file_func (
+ voidpf opaque UNUSED,
+ voidpf stream)
+{
+ // can't check for error due to the QIODevice API limitation
+ return 0;
+}
+
+void fill_qiodevice_filefunc (
+ zlib_filefunc_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen_file = qiodevice_open_file_func;
+ pzlib_filefunc_def->zread_file = qiodevice_read_file_func;
+ pzlib_filefunc_def->zwrite_file = qiodevice_write_file_func;
+ pzlib_filefunc_def->ztell_file = qiodevice_tell_file_func;
+ pzlib_filefunc_def->zseek_file = qiodevice_seek_file_func;
+ pzlib_filefunc_def->zclose_file = qiodevice_close_file_func;
+ pzlib_filefunc_def->zerror_file = qiodevice_error_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}