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#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
#include <string>
#include <algorithm>
#include "garminimg.h"
#include "decoder.h"
using namespace std;
extern int errno;
Decoder::Decoder ()
{
img= new GarminImg;
fp= stdout;
lastpos= 0;
}
Decoder::~Decoder ()
{
close_outfile();
}
//----------------------------------------------------------------------
// General I/O methods
//----------------------------------------------------------------------
int Decoder::open_img (const char *path)
{
string::size_type idx;
fname= path;
idx= fname.rfind('/');
if ( idx != string::npos ) fname.erase(0, idx+1);
idx= fname.rfind('.');
if ( idx != string::npos ) fname.erase(idx);
if ( img->open(path) ) {
perror(path);
return -1;
}
return 0;
}
int Decoder::set_outdir (string dir)
{
struct stat sb;
if ( stat(dir.c_str(), &sb) == -1 ) {
if ( errno != ENOENT ) {
perror(dir.c_str());
return -1;
}
if ( mkdir(dir.c_str(), 0775) == -1 ) {
perror(dir.c_str());
return -1;
}
} else if ( ! S_ISDIR(sb.st_mode) ) {
fprintf(stderr, "%s: not a directory\n", dir.c_str());
return -1;
}
outdir= dir;
return 0;
}
int Decoder::set_outfile (string type, string id)
{
string path;
char cptr[20];
FILE *newfp;
path= outdir;
sprintf(cptr, "/%08x-XXXXXXXX.", img->tell());
path+= cptr;
path+= type;
path+= ".";
path+= id;
newfp= fopen(path.c_str(), "w");
if ( newfp == NULL ) {
perror(path.c_str());
return -1;
}
if ( fp != stdout ) close_outfile();
fp= newfp;
outpath= path;
return 0;
}
void Decoder::close_outfile ()
{
char cptr[9];
fclose(fp);
if ( outpath.size() ) {
string rnpath= outpath;
string::size_type idx;
sprintf(cptr, "%08x", lastpos-1);
idx= outpath.rfind("XXXXXXXX");
rnpath.replace(idx, 8, (string) cptr);
rename(outpath.c_str(), rnpath.c_str());
}
}
//----------------------------------------------------------------------
// Public output methods
//----------------------------------------------------------------------
void Decoder::print (const char *fmt, ...)
{
va_list ap;
if ( fmt == NULL ) print(true, NULL, NULL);
else {
va_start(ap, fmt);
print(true, fmt, ap);
va_end(ap);
}
}
void Decoder::comment (const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if ( fmt == NULL ) print(false, " ", ap);
else print(false, fmt, ap);
va_end(ap);
fflush(fp);
}
void Decoder::banner (const char *str)
{
banner((string) str);
}
void Decoder::banner (string str)
{
string outline= "---------- " + str + " ";
outline.append(75-outline.length(), '-');
fprintf(fp, "%s\n", outline.c_str());
fflush(fp);
}
void Decoder::rawprint (const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(fp, fmt, ap);
va_end(ap);
fflush(fp);
}
//----------------------------------------------------------------------
// Private output methods
//----------------------------------------------------------------------
int Decoder::print (bool usebuffer, const char *fmt, va_list ap)
{
std::string::size_type nbytes;
std::string::size_type idx;
bool cont;
off_t start;
if (usebuffer) buffer= img->ibuffer(&start);
else buffer.clear();
if ( fmt == NULL ) text= "";
else {
vsnprintf(ctext, 2048, fmt, ap);
text= ctext;
}
nbytes= buffer.size();
if ( usebuffer ) lastpos= start+nbytes;
idx= 0;
while ( idx < nbytes ) {
int i, rem, mmax;
if ( (nbytes-idx) < 8 ) {
mmax= (nbytes-idx);
rem= (8-mmax)*3;
cont= false;
} else {
cont= ( (nbytes-idx) == 8 ) ? false : true;
mmax= 8;
rem= 0;
}
fprintf(fp, "%08x |", start+idx);
for (i= 0; i< mmax; ++i) {
fprintf(fp, " %02x", (byte_t) buffer[idx++]);
}
if ( rem ) fprintf(fp, "%*.*s |", rem, rem, "");
else {
if ( cont ) fprintf(fp, " +");
else fprintf(fp, " |");
}
if ( text.size() < 40 ) {
fprintf(fp, " %s\n", text.c_str());
text.clear();
} else {
fprintf(fp, " %s\n", text.substr(0, 39).c_str());
text.erase(0, 39);
}
}
while ( text.size() ) {
if ( text.size() < 40 ) {
fprintf(fp, " | | %s\n",
text.c_str());
return 0;
} else {
fprintf(fp, " | | %s\n",
text.substr(0, 39).c_str());
text.erase(0, 39);
}
}
fflush(fp);
return 0;
}