#include <stdio.h>

int main(argc,argv)
int argc ;
char *argv[] ;

{
	FILE *fopen(), *fpin, *fpout;
	long x;
	int i;

	if (argc != 3) {
		fprintf(stderr, "\
chnghex: usage: chnghex <infile> <outfile>\n\n\
         where <infile> is a space separated ascii file of integers (longs)\n\
         and <outfile> is an ascii file of hexidecimal numbers corresponding\n\
         to <infile> and having 10 numbers per a line (80 characters per line).\n");
		exit(1);
	}
	if ((fpin = fopen(argv[1], "r")) == NULL) {
		fprintf(stderr, "%s can not be opened for reading\n",argv[1]);
		exit(1);
	}
	if ((fpout = fopen(argv[2], "w")) == NULL) {
		fprintf(stderr, "%s can not be opened for writing\n",argv[2]);
		exit(1);
	}

	i = 0;
	while (fscanf(fpin, "%ld", &x) != EOF) {
		i++;
		if (fprintf(fpout, "%08x", x) < 0) {
			fprintf(stderr, "error on writing to %s\n",argv[2]);
		}
		if (i==10) {
			fprintf(fpout, "\n");
			i = 0;
		}
	}

	fclose(fpin);
	fclose(fpout);
}