#include <stdio.h>
#include "string.h"
#include "stdlib.h"

/* Same - Copyright (c) 1990 by Daniel Zenchelsky						*/
/*															*/
/* 	Takes two sorted files and reports only those lines that match.		*/
/* 	Case does not matter.										*/
/*															*/

extern char VersionString[];

char *upper();

main(argc,argv)
int argc;
char **argv;
{
	char data1[257],data2[257],udata1[257],udata2[257];
	FILE *file1,*file2;
	int cmp;

	printf("Same - Version 1.0 - %s\n",VersionString);
	printf("Copyright (c) 1990 by Daniel Zenchelsky.\n\n");

	if (argc != 3)
	{
		printf("Usage: Same File1 File2\n");
		exit(10);
	}

	if ( (file1=fopen(argv[1],"r"))==NULL )
	{
		printf("Error opening file %s\n",argv[1]);
		exit(10);
	}
	if ( (file2=fopen(argv[2],"r"))==NULL )
	{
		printf("Error opening file %s\n",argv[2]);
		exit(10);
	}

	fgets(data1,255,file1);
	fgets(data2,255,file2);
	
	while (!feof(file1) && !feof(file2))
	{
		upper(data1,udata1);
		upper(data2,udata2);

		cmp = strcmp(udata1,udata2);
		if (cmp==0) printf("%s",data1);
		if (cmp<=0) fgets(data1,255,file1);
		if (cmp>=0) fgets(data2,255,file2);
	}

	fclose(file1);
	fclose(file2);

}

char *upper(in,out)
char in[];
char out[];
{
	int count;
	for (count=0;in[count]!=NULL;count++)
		out[count]=toupper(in[count]);
	out[count]=NULL;
	return(out);
}