[28/38] incubator-corinthia git commit: added wrapper for zip.

[ja...@apache.org]

added wrapper for zip.


Project: http://git-wip-us.apache.org/repos/asf/incubator-corinthia/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-corinthia/commit/768c5aad
Tree: http://git-wip-us.apache.org/repos/asf/incubator-corinthia/tree/768c5aad
Diff: http://git-wip-us.apache.org/repos/asf/incubator-corinthia/diff/768c5aad

Branch: refs/heads/experimentZip
Commit: 768c5aad43a31a2e30c0cda101ffa12cf276fa23
Parents: 0fbd721
Author: jani <ja...@apache.org>
Authored: Wed Feb 11 19:55:38 2015 +0100
Committer: jani <ja...@apache.org>
Committed: Wed Feb 11 19:55:38 2015 +0100

----------------------------------------------------------------------
 DocFormats/platform/src/ZipWrapper.c | 146 ++++++++++++++++++++++++++++++
 1 file changed, 146 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-corinthia/blob/768c5aad/DocFormats/platform/src/ZipWrapper.c
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diff --git a/DocFormats/platform/src/ZipWrapper.c b/DocFormats/platform/src/ZipWrapper.c
new file mode 100644
index 0000000..14ed093
--- /dev/null
+++ b/DocFormats/platform/src/ZipWrapper.c
@@ -0,0 +1,146 @@
+// Copyright 2012-2014 UX Productivity Pty Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#include <string.h>
+#include <stdlib.h>
+#include "DFPlatform.h"
+#include "unzip.h"
+#include "zip.h"
+
+
+DFextZipHandleP DFextZipOpen(const char *zipFilename, int doUnzip) {
+    DFextZipHandleP zipHandle = malloc(sizeof(DFextZipHandle));
+ 
+    // no more memory
+    if (!zipHandle)
+        return NULL;
+
+    // Open file
+    zipHandle->zipFirst = 1;
+    zipHandle->zipFlag = doUnzip;
+    if (doUnzip)
+        zipHandle->handle = unzOpen(zipFilename);
+    else
+        zipHandle->handle = zipOpen(zipFilename, APPEND_STATUS_CREATE);
+
+    if (zipHandle->handle)
+        return zipHandle;
+
+    free(zipHandle);
+    return NULL;
+}
+
+
+
+int DFextZipClose(DFextZipHandleP zipHandle)
+{
+    int rc = 0;
+
+    if (zipHandle->handle) {
+        if (zipHandle->zipFlag)
+            rc = (unzClose(zipHandle->handle) == UNZ_OK);
+        else
+            rc = (zipClose(zipHandle->handle, NULL) == ZIP_OK);
+        zipHandle->handle = NULL;
+    }
+
+    free(zipHandle);
+    return rc ? 1 : -1;
+}
+
+
+
+int DFextZipOpenNextFile(DFextZipHandleP zipHandle, char *entryName, const int maxName)
+{
+    int rc;
+
+
+    if (zipHandle->zipFlag) {
+        unz_file_info info;
+
+        // handling of first file and all others are different
+        if (zipHandle->zipFirst) {
+            rc = unzGoToFirstFile(zipHandle->handle);
+            zipHandle->zipFirst = 0;
+        }
+        else
+            rc = unzGoToNextFile(zipHandle->handle);
+
+        // Error or past last file
+        if (rc != UNZ_OK)
+            return (rc == UNZ_END_OF_LIST_OF_FILE) ? 0 : -1;
+
+        // get file name
+        if (unzGetCurrentFileInfo(zipHandle->handle, &info, entryName, maxName, NULL, 0, NULL, 0) != UNZ_OK)
+            return -1;
+
+        // check for prefix "/" and if present skip file
+        if (entryName[strlen(entryName) - 1] == '/')
+            return DFextZipOpenNextFile(zipHandle, entryName, maxName);
+
+        // open Regular file
+        if (unzOpenCurrentFile(zipHandle->handle) != UNZ_OK)
+            return -1;
+    }
+    else {
+        return -1; // Zip file is open in write-only mode
+    }
+
+    // ready to read
+    return 1;
+}
+
+int DFextZipAppendNewFile(DFextZipHandleP zipHandle, const char *entryName)
+{
+    zip_fileinfo fileinfo;
+    memset(&fileinfo, 0, sizeof(fileinfo));
+
+    if (zipHandle->zipFlag)
+        return -1; // Zip file is open in read-only mode
+
+    if (zipOpenNewFileInZip(zipHandle->handle,
+                            entryName,
+                            &fileinfo,
+                            NULL, 0,
+                            NULL, 0,
+                            NULL,
+                            Z_DEFLATED,
+                            Z_DEFAULT_COMPRESSION) != ZIP_OK) {
+        return -1;
+    }
+
+    return 1;
+}
+
+int DFextZipCloseFile(DFextZipHandleP zipHandle)
+{
+    if (zipHandle->zipFlag)
+        return (unzCloseCurrentFile(zipHandle->handle) != UNZ_OK) ? -1 : 1;
+    else
+        return (zipCloseFileInZip(zipHandle->handle) != UNZ_OK) ? -1 : 1;
+}
+
+
+ 
+
+int DFextZipReadCurrentFile(DFextZipHandleP zipHandle, void *buf, const int maxLen)
+{
+    return unzReadCurrentFile(zipHandle->handle, buf, maxLen);
+}
+
+
+
+int DFextZipWriteCurrentFile(DFextZipHandleP zipHandle, const void *buf, const int len)
+{
+    return (zipWriteInFileInZip(zipHandle->handle, buf, len) == ZIP_OK) ? 1 : -1;
+}