Index: uspace/lib/c/generic/io/asprintf.c
===================================================================
--- uspace/lib/c/generic/io/asprintf.c	(revision 4f4018bd6da8e1f73a3a19c7f7f3ae2cca9cc9b9)
+++ uspace/lib/c/generic/io/asprintf.c	(revision cca2d93bbd7935b85a50e403eb614eb5885365c3)
@@ -51,5 +51,5 @@
 }
 
-int vprintf_size(const char *fmt, va_list args)
+int vprintf_length(const char *fmt, va_list args)
 {
 	printf_spec_t ps = {
@@ -62,9 +62,9 @@
 }
 
-int printf_size(const char *fmt, ...)
+int printf_length(const char *fmt, ...)
 {
 	va_list args;
 	va_start(args, fmt);
-	int ret = vprintf_size(fmt, args);
+	int ret = vprintf_length(fmt, args);
 	va_end(args);
 
Index: uspace/lib/c/include/stdio.h
===================================================================
--- uspace/lib/c/include/stdio.h	(revision 4f4018bd6da8e1f73a3a19c7f7f3ae2cca9cc9b9)
+++ uspace/lib/c/include/stdio.h	(revision cca2d93bbd7935b85a50e403eb614eb5885365c3)
@@ -204,6 +204,6 @@
 };
 
-extern int vprintf_size(const char *, va_list);
-extern int printf_size(const char *, ...)
+extern int vprintf_length(const char *, va_list);
+extern int printf_length(const char *, ...)
     _HELENOS_PRINTF_ATTRIBUTE(1, 2);
 extern FILE *fdopen(int, const char *);