added strlcpy (and a host test for it)

started to add I/O port code for VGA data and select ports

1 files changed, 30 insertions, 0 deletions

diff --git a/src/string.c b/src/string.c
index 6aa46ef..9be5e43 100644
--- a/src/string.c
+++ b/src/string.c
@@ -40,3 +40,33 @@ size_t strlen( const char *s )
 	
 	return len;
 }
+
+int strcmp( const char *s1, const char *s2 )
+{
+	while( *s1 && *s2 && *s1 == *s2 ) {
+		s1++;
+		s2++;
+	}
+
+	return *s1 - *s2;
+}
+
+size_t strlcpy( char *d, const char *s, size_t n )
+{
+	size_t len = 0;
+	
+	while( len < n && s[len] ) {
+		d[len] = s[len];
+		len++;
+	}
+	
+	while( s[len] ) {
+		len++;
+	}
+	
+	if( len >= n ) {
+		d[n-1] = '\0';
+	}
+	
+	return len;
+}