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/*
* $Id$
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, 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;
}
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