feat: add ft_strlcpy function

ft_strlcpy.c

@@ -0,0 +1,20 @@
+#include "libft.h"
+
+size_t	ft_strlcpy(char *dst, const char *src, size_t dstsize)
+{
+	size_t	length;
+	size_t	i;
+
+	i = 0;
+	length = ft_strlen(src);
+	if (dstsize > 0)
+	{
+		while (dstsize - 1 > i && src[i])
+		{
+			dst[i] = src[i];
+			i++;
+		}
+		dst[i] = '\0';
+	}
+	return (length);
+}

libft.h

@@ -80,4 +80,12 @@ void	*ft_memcpy(void *dst, const void *src, size_t n);
 */
 void	*ft_memmove(void *dst, const void *src, size_t n);
 
+/*
+	strlcpy() copies up to dstsize - 1 
+	characters from the string src to 
+	dst, NUL-terminating the result if
+	dstsize is not 0.
+*/
+size_t	ft_strlcpy(char *dst, const char *src, size_t dstsize);
+
 #endif