/*
 * (c) SPDsoft 1994
 */
static char __ident[] = "@(#)(c) SPDsoft, 15 de septiembre 1995";
#define VERS_STR        ((char*)&__ident[4])

#include <stdio.h>
#include <errno.h>

#define N_MG	(sizeof(magic))
#define DoError(frm, str)      fprintf(stderr,frm,app_name,str,'\n')

FILE *newfile(int i);

char *app_name;
char	magic[3]={0xff, 0xd8, 0xff};

int main( int argc, char *argv[] )
{
	int		i=0;
	int		c;
	char	*bp=magic, *bell=&magic[N_MG-1];
	FILE	*f=NULL;

	app_name = argv[0];
	f = newfile(i);

	while ( EOF != ( c = getchar() ))
	{
		if ( c == (int) *bp )
		{
			if ( bp == bell )
			{
				/* la flauta ! */
				fclose(f);
				f = newfile(++i);
				bp = magic;
			}
			else
				bp++;
		}
		else
		{
			bp = magic;	
		}
		fputc( c, f );
	}
	if (f) fclose(f);
}

FILE *newfile(int i)
{
	char s[256];
	FILE *f;

	sprintf(s,"out.%03d.jpg", i);
	if ( !(f = fopen ( s, "wb" )))
	{
		perror("fopen");
		exit(errno);
	}
	fwrite( magic, N_MG - 1, 1, f);
	return( f );
}