hekate/tools/bin2c/bin2c.c

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C
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2020-07-04 19:12:12 +00:00
/*
* This is bin2c program, which allows you to convert binary file to
* C language array, for use as embedded resource, for instance you can
* embed graphics or audio file directly into your program.
* This is public domain software, use it on your own risk.
* Contact Serge Fukanchik at fuxx@mail.ru if you have any questions.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <ctype.h>
#include <unistd.h>
/* Replace . with _ */
char*
make_ident ( char* name )
{
char* ret;
char* p;
ret = strdup ( name );
for ( p = ret; p[0]; p++ )
{
if ( !isalnum ( p[0] ) ) p[0] = '_';
}
return ret;
}
int
main ( int argc, char* argv[] )
{
unsigned char buf[BUFSIZ];
char* ident;
int fd, i, total, rd, need_comma;
if ( argc < 2 )
{
fprintf ( stderr, "Usage: %s binary_file > output_file\n", argv[0] );
return -1;
}
fd = open ( argv[1], O_RDONLY );
if ( fd == -1 )
{
fprintf ( stderr, "%s: can't open %s for reading\n", argv[0], argv[1] );
return -1;
}
ident = make_ident ( argv[1] );
printf ( "static const unsigned char __attribute__((section (\"._%s\"))) %s[] = {", ident, ident );
for ( total = 0, need_comma = 0; ( rd = read ( fd, buf, BUFSIZ ) ) != 0; )
{
if ( rd == -1 )
{
fprintf ( stderr, "%s: file read error\n", argv[0] );
return -1;
}
for ( i = 0; i < rd; i++ )
{
if ( need_comma ) printf ( ", " );
else need_comma = 1;
if ( ( total % 11 ) == 0 ) printf ( "\n\t" );
printf ( "0x%.2x", buf[i] );
total++;
}
}
printf ( "\n};\n" );
close ( fd );
free ( ident );
return 0;
}