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| author | Mathieu Malaterre <mathieu.malaterre@gmail.com> | 2012-09-28 08:11:41 +0000 |
|---|---|---|
| committer | Mathieu Malaterre <mathieu.malaterre@gmail.com> | 2012-09-28 08:11:41 +0000 |
| commit | d518970039a19a2a9b6d2bdd592cc88a43897bbb (patch) | |
| tree | 57bac2cf7e63e9352228231062763baac627563c /src/lib/openjpip/byte_manager.c | |
| parent | 8363a6ab1e031bb4b2e40a92e56efd40fdab1aa1 (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.c | 172 |
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; +} |
