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Diffstat (limited to 'third_party/ijar/common.h')
-rw-r--r-- | third_party/ijar/common.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/third_party/ijar/common.h b/third_party/ijar/common.h new file mode 100644 index 0000000000..d383bfd4f2 --- /dev/null +++ b/third_party/ijar/common.h @@ -0,0 +1,118 @@ +// Copyright 2001,2007 Alan Donovan. All rights reserved. +// +// Author: Alan Donovan <adonovan@google.com> +// +// 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. +// +// common.h -- common definitions. +// + +#ifndef INCLUDED_DEVTOOLS_IJAR_COMMON_H +#define INCLUDED_DEVTOOLS_IJAR_COMMON_H + +#include <stddef.h> +#include <stdint.h> +#include <string.h> + +namespace devtools_ijar { + +typedef unsigned long long u8; +typedef uint32_t u4; +typedef uint16_t u2; +typedef uint8_t u1; + +// be = big endian, le = little endian + +inline u1 get_u1(const u1 *&p) { + return *p++; +} + +inline u2 get_u2be(const u1 *&p) { + u4 x = (p[0] << 8) | p[1]; + p += 2; + return x; +} + +inline u2 get_u2le(const u1 *&p) { + u4 x = (p[1] << 8) | p[0]; + p += 2; + return x; +} + +inline u4 get_u4be(const u1 *&p) { + u4 x = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; + p += 4; + return x; +} + +inline u4 get_u4le(const u1 *&p) { + u4 x = (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]; + p += 4; + return x; +} + +inline void put_u1(u1 *&p, u1 x) { + *p++ = x; +} + +inline void put_u2be(u1 *&p, u2 x) { + *p++ = x >> 8; + *p++ = x & 0xff; +} + +inline void put_u2le(u1 *&p, u2 x) { + *p++ = x & 0xff; + *p++ = x >> 8;; +} + +inline void put_u4be(u1 *&p, u4 x) { + *p++ = x >> 24; + *p++ = (x >> 16) & 0xff; + *p++ = (x >> 8) & 0xff; + *p++ = x & 0xff; +} + +inline void put_u4le(u1 *&p, u4 x) { + *p++ = x & 0xff; + *p++ = (x >> 8) & 0xff; + *p++ = (x >> 16) & 0xff; + *p++ = x >> 24; +} + +// Copy n bytes from src to p, and advance p. +inline void put_n(u1 *&p, const u1 *src, size_t n) { + memcpy(p, src, n); + p += n; +} + + +// Opens "file_in" (a .jar file) for reading, and writes an interface +// .jar to "file_out". Returns zero on success. +int OpenFilesAndProcessJar(const char *file_out, const char *file_in); + + +// Reads a JVM class from classdata_in (of the specified length), and +// writes out a simplified class to classdata_out, advancing the +// pointer. +void StripClass(u1 *&classdata_out, const u1 *classdata_in, size_t in_length); + +extern bool verbose; + +// Given the data in the zip file, returns the offset of the central +// directory and the number of files contained in it in *offset and +// *entries, respectively. Returns true on success, or false on error. +bool FindZipCentralDirectory(const u1* bytes, size_t in_length, u4* offset); + +} // namespace devtools_ijar + +#endif // INCLUDED_DEVTOOLS_IJAR_COMMON_H |