1 files changed, 30 insertions, 0 deletions
diff --git a/reference/C/PROBLEMS/unix2dos.c b/reference/C/PROBLEMS/unix2dos.c
new file mode 100644
index 0000000..f5992ea
--- /dev/null
+++ b/reference/C/PROBLEMS/unix2dos.c
@@ -0,0 +1,30 @@
+/*************************************************************************
+ * 
+ * problem: Convert Unix files to DOS format.
+ * Method:  Program scans for hex '0A' (LF) and replaces it with hex '0D0A' (CRLF)
+ * todo:	 Prompt the user for a filename, and check it exists.
+ * Author:  M J Leslie
+ * Date:    12-Mar-94
+ *
+ *************************************************************************/
+
+#include <stdio.h>			/* printf, putchar, fopen, fclose */
+
+#define LF	 10
+#define CR	 13
+#define FILENAME "unix2dos.c"
+
+main()
+{
+FILE *fptr;				/* Pointer to file		*/
+char ch;				/* File buffer			*/
+
+fptr = fopen(FILENAME, "r");
+
+while ( (ch = fgetc(fptr)) != EOF )	/* read characters until EOF 	*/
+   {
+   if ( ch == LF ) printf("%c", CR);	/* add CR if we see an LF	*/
+   putchar(ch);				/* write byte		  	*/
+   }
+fclose(fptr);
+}