file_copy_crt.c

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/* generic C stdio file copy */

#include "fb.h"

#define BUFFER_SIZE 512

FBCALL int fb_CrtFileCopy( const char *source, const char *destination )
{
        FILE *src, *dst;
        unsigned char buffer[BUFFER_SIZE];
        size_t bytesread;

        dst = NULL;
        src = fopen(source, "rb");
        if (!src)
                goto err;

        dst = fopen(destination, "wb");
        if (!dst)
                goto err;

        while( (bytesread = fread( buffer, 1, BUFFER_SIZE, src )) > 0 ) {
                if (fwrite( buffer, 1, bytesread, dst ) != bytesread)
                        goto err;
        }

        if( !feof( src ) )
                goto err;

        fclose( src );
        fclose( dst );

        return fb_ErrorSetNum( FB_RTERROR_OK );

err:
        if (src) fclose( src );
        if (dst) fclose( dst );
        return fb_ErrorSetNum( FB_RTERROR_ILLEGALFUNCTIONCALL );
}