summaryrefslogtreecommitdiff
path: root/third_party/zlib_v1211/uncompr.c
diff options
context:
space:
mode:
authorLei Zhang <thestig@chromium.org>2017-03-31 13:33:12 -0700
committerChromium commit bot <commit-bot@chromium.org>2017-03-31 20:51:48 +0000
commita2af7de2e32e6938dd825acb8df775b11ec95510 (patch)
tree883664ee920a8fd64dbc96bec8cb59fe1c7ce760 /third_party/zlib_v1211/uncompr.c
parentbdbb0bd92bfca52e574106c4ce5f93d9d34d3373 (diff)
downloadpdfium-a2af7de2e32e6938dd825acb8df775b11ec95510.tar.xz
Move zlib to a DEPS-based checkout.
BUG=chromium:541704 Change-Id: I313d8853450ff5940b3baa4054ff441b342c46b7 Reviewed-on: https://pdfium-review.googlesource.com/3350 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'third_party/zlib_v1211/uncompr.c')
-rw-r--r--third_party/zlib_v1211/uncompr.c93
1 files changed, 0 insertions, 93 deletions
diff --git a/third_party/zlib_v1211/uncompr.c b/third_party/zlib_v1211/uncompr.c
deleted file mode 100644
index f03a1a865e..0000000000
--- a/third_party/zlib_v1211/uncompr.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-2003, 2010, 2014, 2016 Jean-loup Gailly, Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id$ */
-
-#define ZLIB_INTERNAL
-#include "zlib.h"
-
-/* ===========================================================================
- Decompresses the source buffer into the destination buffer. *sourceLen is
- the byte length of the source buffer. Upon entry, *destLen is the total size
- of the destination buffer, which must be large enough to hold the entire
- uncompressed data. (The size of the uncompressed data must have been saved
- previously by the compressor and transmitted to the decompressor by some
- mechanism outside the scope of this compression library.) Upon exit,
- *destLen is the size of the decompressed data and *sourceLen is the number
- of source bytes consumed. Upon return, source + *sourceLen points to the
- first unused input byte.
-
- uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_BUF_ERROR if there was not enough room in the output buffer, or
- Z_DATA_ERROR if the input data was corrupted, including if the input data is
- an incomplete zlib stream.
-*/
-int ZEXPORT uncompress2 (dest, destLen, source, sourceLen)
- Bytef *dest;
- uLongf *destLen;
- const Bytef *source;
- uLong *sourceLen;
-{
- z_stream stream;
- int err;
- const uInt max = (uInt)-1;
- uLong len, left;
- Byte buf[1]; /* for detection of incomplete stream when *destLen == 0 */
-
- len = *sourceLen;
- if (*destLen) {
- left = *destLen;
- *destLen = 0;
- }
- else {
- left = 1;
- dest = buf;
- }
-
- stream.next_in = (z_const Bytef *)source;
- stream.avail_in = 0;
- stream.zalloc = (alloc_func)0;
- stream.zfree = (free_func)0;
- stream.opaque = (voidpf)0;
-
- err = inflateInit(&stream);
- if (err != Z_OK) return err;
-
- stream.next_out = dest;
- stream.avail_out = 0;
-
- do {
- if (stream.avail_out == 0) {
- stream.avail_out = left > (uLong)max ? max : (uInt)left;
- left -= stream.avail_out;
- }
- if (stream.avail_in == 0) {
- stream.avail_in = len > (uLong)max ? max : (uInt)len;
- len -= stream.avail_in;
- }
- err = inflate(&stream, Z_NO_FLUSH);
- } while (err == Z_OK);
-
- *sourceLen -= len + stream.avail_in;
- if (dest != buf)
- *destLen = stream.total_out;
- else if (stream.total_out && err == Z_BUF_ERROR)
- left = 1;
-
- inflateEnd(&stream);
- return err == Z_STREAM_END ? Z_OK :
- err == Z_NEED_DICT ? Z_DATA_ERROR :
- err == Z_BUF_ERROR && left + stream.avail_out ? Z_DATA_ERROR :
- err;
-}
-
-int ZEXPORT uncompress (dest, destLen, source, sourceLen)
- Bytef *dest;
- uLongf *destLen;
- const Bytef *source;
- uLong sourceLen;
-{
- return uncompress2(dest, destLen, source, &sourceLen);
-}