adds terminator to char str in wrap_puts

libwrap/sys/puts.c

@@ -4,10 +4,12 @@
 
 extern ssize_t _bsp_write(int, const void*, size_t);
 
-int __wrap_puts(const char* s) {
-    const char* str = s;
-    while(*str)
-        str++;
-    return _bsp_write(STDOUT_FILENO, s, str - s);
+int __wrap_puts(const char* s) {    
+     if(!s) return -1;
+     const char* str = s;
+     while(*str) 
+          ++str;
+     *(char*)str='\n';
+     return _bsp_write(STDOUT_FILENO, s, (str - s)+1);   
 }
-weak_under_alias(puts);
+    weak_under_alias(puts);