From 5b78b7da02e476c0406a85f10998ef7f95244b77 Mon Sep 17 00:00:00 2001
From: Arti Zirk <arti.zirk@gmail.com>
Date: Mon, 26 Sep 2016 17:33:02 +0300
Subject: [PATCH] Add print helper functions

---
 src/print_helper.c | 27 +++++++++++++++++++++++++++
 src/print_helper.h |  7 +++++++
 2 files changed, 34 insertions(+)
 create mode 100644 src/print_helper.c
 create mode 100644 src/print_helper.h

diff --git a/src/print_helper.c b/src/print_helper.c
new file mode 100644
index 0000000..15d409e
--- /dev/null
+++ b/src/print_helper.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include "print_helper.h"
+
+int print_ascii_tbl (FILE *stream) {
+    for (char c = ' '; c <= '~'; c++) {
+        if(!fprintf(stream, "%c ", c)) {
+            return 0;
+        }
+    }
+    return fprintf(stream, "\n");
+}
+
+
+int print_for_human (FILE *stream, const unsigned char *array, const int len) {
+    for (int i = 0; i < len; i++) {
+        if (array[i] >= ' ' && array[i] <= '~') {
+            if(!fprintf(stream, "%c ", array[i])) {
+                return 0;
+            }
+        } else {
+            if(!fprintf(stream, "\"0x%02x\"", array[i])) {
+                return 0;
+            }
+        }
+    }
+    return 0;
+}
diff --git a/src/print_helper.h b/src/print_helper.h
new file mode 100644
index 0000000..415344a
--- /dev/null
+++ b/src/print_helper.h
@@ -0,0 +1,7 @@
+#ifndef _PRINT_HELPER_H_
+#define _PRINT_HELPER_H_
+
+int print_ascii_tbl (FILE *stream);
+int print_for_human (FILE *stream, const unsigned char *array, const int len);
+
+#endif /* _PRINT_HELPER_H_ */