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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /modules/libjar/zipwriter/StreamFunctions.h
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules/libjar/zipwriter/StreamFunctions.h')
-rw-r--r--modules/libjar/zipwriter/StreamFunctions.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/modules/libjar/zipwriter/StreamFunctions.h b/modules/libjar/zipwriter/StreamFunctions.h
new file mode 100644
index 0000000000..b3fc20d04a
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+++ b/modules/libjar/zipwriter/StreamFunctions.h
@@ -0,0 +1,58 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef _nsStreamFunctions_h_
+#define _nsStreamFunctions_h_
+
+#include "nscore.h"
+#include "nsIInputStream.h"
+#include "nsIOutputStream.h"
+
+/*
+ * ZIP file data is stored little-endian. These are helper functions to read and
+ * write little endian data to/from a char buffer.
+ * The off argument, where present, is incremented according to the number of
+ * bytes consumed from the buffer.
+ */
+inline void WRITE8(uint8_t* buf, uint32_t* off, uint8_t val) {
+ buf[(*off)++] = val;
+}
+
+inline void WRITE16(uint8_t* buf, uint32_t* off, uint16_t val) {
+ WRITE8(buf, off, val & 0xff);
+ WRITE8(buf, off, (val >> 8) & 0xff);
+}
+
+inline void WRITE32(uint8_t* buf, uint32_t* off, uint32_t val) {
+ WRITE16(buf, off, val & 0xffff);
+ WRITE16(buf, off, (val >> 16) & 0xffff);
+}
+
+inline uint8_t READ8(const uint8_t* buf, uint32_t* off) {
+ return buf[(*off)++];
+}
+
+inline uint16_t READ16(const uint8_t* buf, uint32_t* off) {
+ uint16_t val = READ8(buf, off);
+ val |= READ8(buf, off) << 8;
+ return val;
+}
+
+inline uint32_t READ32(const uint8_t* buf, uint32_t* off) {
+ uint32_t val = READ16(buf, off);
+ val |= READ16(buf, off) << 16;
+ return val;
+}
+
+inline uint32_t PEEK32(const uint8_t* buf) {
+ return (uint32_t)((buf[0]) | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24));
+}
+
+nsresult ZW_ReadData(nsIInputStream* aStream, char* aBuffer, uint32_t aCount);
+
+nsresult ZW_WriteData(nsIOutputStream* aStream, const char* aBuffer,
+ uint32_t aCount);
+
+#endif