Move some macros to common.c

common.c

@@ -34,6 +34,19 @@
 #include <inttypes.h>
 #include <arpa/inet.h>
 
+/// Shorthand to set an error and return failure from the function
+#define FAIL(...)                                                              \
+	BLOCK_START                                                                \
+		error_set (e, __VA_ARGS__);                                            \
+		return false;                                                          \
+	BLOCK_END
+
+// A few other debugging shorthands
+#define LOG_FUNC_FAILURE(name, desc)                                           \
+	print_debug ("%s: %s: %s", __func__, (name), (desc))
+#define LOG_LIBC_FAILURE(name)                                                 \
+	print_debug ("%s: %s: %s", __func__, (name), strerror (errno))
+
 // --- Logging -----------------------------------------------------------------
 
 static void