cpm commands

WEGA/contrib/cpm/cpm3/hexdmp.c

@@ -0,0 +1,56 @@
+/*	hexdmp.c	1.5	83/05/13	*/
+
+#include <ctype.h>
+#include <stdio.h>
+#include "cpmio.h"
+#include "cpmfio.h"
+
+dump(cmdline)
+	char cmdline[];
+{
+	char name[9], ext[4];
+	C_FILE *cid;
+
+	if (!(namesep(cmdline, name, ext))) 
+		return;
+	if ((cid = c_open(name, ext, READ)) == NULL)
+		return;
+	hexdump(cid);
+	c_close(cid);  
+}
+
+hexdump(fp)
+	C_FILE *fp;
+{
+	int c, nc=0, cbuf[16], blcnt=0;
+
+	printf("\n");
+	while ((c = c_getc(fp)) != EOF) {
+		cbuf[nc%16] = c;
+		if (nc%128 == 0)
+			printf("\n      Block %04d\n", blcnt++);
+		if (nc%16  == 0)
+			printf("%04x  ", nc);
+		++nc;
+		printf("%02x ", c);
+		if (nc%16  == 0) 
+			printline(cbuf, 16);
+	}
+	if (nc%16 != 0)
+		printline(cbuf, nc%16);
+	printf("\n");
+}
+
+printline(cbuf, nc)
+	int cbuf[];
+{
+	int i1;
+
+	for (i1=0; i1< nc; ++i1) { 
+		if (cbuf[i1] > 31 && cbuf[i1] < 127)
+			printf("%c", cbuf[i1]);
+		else
+			printf(".");
+	}
+	printf("\n");
+}