From e77b371fb0fc4e62fa727a340b2e322fa60ebcff Mon Sep 17 00:00:00 2001
From: James Barnett <noreply@jamesbarnett.xyz>
Date: Sun, 6 Oct 2019 15:53:52 +0100
Subject: Add command parsing and echo command

---
 os/stdlib/sdtlib.h |  3 ++-
 os/stdlib/stdlib.c | 14 ++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

(limited to 'os/stdlib')

diff --git a/os/stdlib/sdtlib.h b/os/stdlib/sdtlib.h
index a0b3402..85073d2 100644
--- a/os/stdlib/sdtlib.h
+++ b/os/stdlib/sdtlib.h
@@ -1 +1,2 @@
-char* int_to_str(int i);
\ No newline at end of file
+char* int_to_str(int i);
+int strcmp(const char *str1, const char *str2);
\ No newline at end of file
diff --git a/os/stdlib/stdlib.c b/os/stdlib/stdlib.c
index 465e978..bdb2242 100644
--- a/os/stdlib/stdlib.c
+++ b/os/stdlib/stdlib.c
@@ -18,4 +18,18 @@ char* int_to_str(int i)
     *--p = '-';
   }
   return p;
+}
+
+
+int strcmp(const char *str1, const char *str2)
+{
+	while(*str1){
+		if (*str1 != *str2) {
+	    break;
+    }
+		str1++;
+		str2++;
+	}
+
+	return *(const unsigned char*)str1 - *(const unsigned char*)str2;
 }
\ No newline at end of file
-- 
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