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authorMathieu Malaterre <mathieu.malaterre@gmail.com>2012-09-28 08:11:41 +0000
committerMathieu Malaterre <mathieu.malaterre@gmail.com>2012-09-28 08:11:41 +0000
commitd518970039a19a2a9b6d2bdd592cc88a43897bbb (patch)
tree57bac2cf7e63e9352228231062763baac627563c /src/lib/openjpip/byte_manager.c
parent8363a6ab1e031bb4b2e40a92e56efd40fdab1aa1 (diff)
[trunk] Start FolderReorgProposal task
Update issue 177
Diffstat (limited to 'src/lib/openjpip/byte_manager.c')
-rw-r--r--src/lib/openjpip/byte_manager.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/src/lib/openjpip/byte_manager.c b/src/lib/openjpip/byte_manager.c
new file mode 100644
index 00000000..502c26bd
--- /dev/null
+++ b/src/lib/openjpip/byte_manager.c
@@ -0,0 +1,172 @@
+/*
+ * $Id: byte_manager.c 44 2011-02-15 12:32:29Z kaori $
+ *
+ * Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2011, Professor Benoit Macq
+ * Copyright (c) 2010-2011, Kaori Hagihara
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#ifdef _WIN32
+#include <io.h>
+#else
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+#include <stdlib.h>
+#include <sys/stat.h>
+#include "byte_manager.h"
+
+#ifdef SERVER
+#include "fcgi_stdio.h"
+#define logstream FCGI_stdout
+#else
+#define FCGI_stdout stdout
+#define FCGI_stderr stderr
+#define logstream stderr
+#endif /*SERVER*/
+
+
+Byte_t * fetch_bytes( int fd, OPJ_OFF_T offset, OPJ_SIZE_T size)
+{
+ Byte_t *data;
+
+ if( lseek( fd, offset, SEEK_SET)==-1){
+ fprintf( FCGI_stdout, "Reason: Target broken (fseek error)\r\n");
+ fprintf( FCGI_stderr, "Error: error in fetch_bytes( %d, %ld, %lu)\n", fd, offset, size);
+ return NULL;
+ }
+
+ data = (Byte_t *)malloc( size);
+
+ if( (OPJ_SIZE_T)read( fd, data, size) != size){
+ free( data);
+ fprintf( FCGI_stdout, "Reason: Target broken (read error)\r\n");
+ fprintf( FCGI_stderr, "Error: error in fetch_bytes( %d, %ld, %lu)\n", fd, offset, size);
+ return NULL;
+ }
+ return data;
+}
+
+Byte_t fetch_1byte( int fd, OPJ_OFF_T offset)
+{
+ Byte_t code;
+
+ if( lseek( fd, offset, SEEK_SET)==-1){
+ fprintf( FCGI_stdout, "Reason: Target broken (seek error)\r\n");
+ fprintf( FCGI_stderr, "Error: error in fetch_1byte( %d, %ld)\n", fd, offset);
+ return 0;
+ }
+
+ if( read( fd, &code, 1) != 1){
+ fprintf( FCGI_stdout, "Reason: Target broken (read error)\r\n");
+ fprintf( FCGI_stderr, "Error: error in fetch_bytes( %d, %ld)\n", fd, offset);
+ return 0;
+ }
+ return code;
+}
+
+Byte2_t fetch_2bytebigendian( int fd, OPJ_OFF_T offset)
+{
+ Byte_t *data;
+ Byte2_t code;
+
+ if(!(data = fetch_bytes( fd, offset, 2))){
+ fprintf( FCGI_stderr, "Error: error in fetch_2bytebigendian( %d, %ld)\n", fd, offset);
+ return 0;
+ }
+ code = big2(data);
+ free( data);
+
+ return code;
+}
+
+Byte4_t fetch_4bytebigendian( int fd, OPJ_OFF_T offset)
+{
+ Byte_t *data;
+ Byte4_t code;
+
+ if(!(data = fetch_bytes( fd, offset, 4))){
+ fprintf( FCGI_stderr, "Error: error in fetch_4bytebigendian( %d, %ld)\n", fd, offset);
+ return 0;
+ }
+ code = big4(data);
+ free( data);
+
+ return code;
+}
+
+Byte8_t fetch_8bytebigendian( int fd, OPJ_OFF_T offset)
+{
+ Byte_t *data;
+ Byte8_t code;
+
+ if(!(data = fetch_bytes( fd, offset, 8))){
+ fprintf( FCGI_stderr, "Error: error in fetch_8bytebigendian( %d, %ld)\n", fd, offset);
+ return 0;
+ }
+ code = big8(data);
+ free( data);
+
+ return code;
+}
+
+
+Byte2_t big2( Byte_t *buf)
+{
+ return (Byte2_t)((((Byte2_t) buf[0]) << 8) + ((Byte2_t) buf[1]));
+}
+
+Byte4_t big4( Byte_t *buf)
+{
+ return (((((((Byte4_t) buf[0]) << 8) + ((Byte4_t) buf[1])) << 8)
+ + ((Byte4_t) buf[2])) << 8) + ((Byte4_t) buf[3]);
+}
+
+Byte8_t big8( Byte_t *buf)
+{
+ return (((Byte8_t) big4 (buf)) << 32)
+ + ((Byte8_t) big4 (buf + 4));
+}
+
+void modify_4Bytecode( Byte4_t code, Byte_t *stream)
+{
+ *stream = (Byte_t) ((Byte4_t)(code & 0xff000000) >> 24);
+ *(stream+1) = (Byte_t) ((Byte4_t)(code & 0x00ff0000) >> 16);
+ *(stream+2) = (Byte_t) ((Byte4_t)(code & 0x0000ff00) >> 8);
+ *(stream+3) = (Byte_t) (code & 0x000000ff);
+}
+
+OPJ_OFF_T get_filesize( int fd)
+{
+ struct stat sb;
+
+ if( fstat( fd, &sb) == -1){
+ fprintf( FCGI_stdout, "Reason: Target broken (fstat error)\r\n");
+ fprintf( FCGI_stderr, "Error: error in get_filesize( %d)\n", fd);
+ return 0;
+ }
+ return sb.st_size;
+}