* stdio-common/printf.h (struct printf_info): Add user element.

	New types printf_arginfo_size_function, printf_va_arg_function.
	Declare register_printf_specifier, register_printf_modifier,
	register_printf_type.
	* stdio-common/printf-parse.h (struct printf_spec): Add size element.
	(union printf_arg): Add pa_user element.
	Adjust __printf_arginfo_table type.
	Add __printf_va_arg_table, __printf_modifier_table,
	__handle_registered_modifier_mb, and __handle_registered_modifier_wc
	declarations.
	* stdio-common/printf-parsemb.c: Recognize registered modifiers.
	If registered arginfo call failed try normal specifier.
	* stdio-common/printf-prs.c: Pass additional parameter to arginfo
	function.
	* stdio-common/Makefile (routines): Add reg-modifier and reg-type.
	* stdio-common/Versions: Export register_printf_modifier,
	register_printf_type, and register_printf_specifier for GLIBC_2.10.
	* stdio-common/reg-modifier.c: New file.
	* stdio-common/reg-type.c: New file.
	* stdio-common/reg-printf.c (__register_printf_specifier): New
	function.  Mostly the old __register_printf_function function but
	uses locking and type of third parameter changed.
	(__register_printf_function): Implement using
	__register_printf_specifier.
	* stdio-common/vfprintf.c (vfprintf): Collect argument sizes in
	calls to arginfo functions.  Allocate enough memory for user-defined
	types.  Call new va_arg functions to get user-defined types.
	Try installed handlers even for existing format specifiers first.

1 files changed, 21 insertions, 2 deletions

diff --git a/stdio-common/printf-parse.h b/stdio-common/printf-parse.h
index f6ad71c..555ad78 100644
--- a/stdio-common/printf-parse.h
+++ b/stdio-common/printf-parse.h
@@ -1,5 +1,5 @@
 /* Internal header for parsing printf format strings.
-   Copyright (C) 1995-1999, 2000, 2002, 2003, 2007
+   Copyright (C) 1995-1999, 2000, 2002, 2003, 2007, 2009
    Free Software Foundation, Inc.
    This file is part of th GNU C Library.
 
@@ -42,6 +42,8 @@ struct printf_spec
     int data_arg_type;		/* Type of first argument.  */
     /* Number of arguments consumed by this format specifier.  */
     size_t ndata_args;
+    /* Size of the parameter for PA_USER type.  */
+    int size;
   };
 
 
@@ -60,6 +62,7 @@ union printf_arg
     const char *pa_string;
     const wchar_t *pa_wstring;
     void *pa_pointer;
+    void *pa_user;
   };
 
 
@@ -83,8 +86,9 @@ read_int (const UCHAR_T * *pstr)
 
 
 /* These are defined in reg-printf.c.  */
-extern printf_arginfo_function **__printf_arginfo_table attribute_hidden;
+extern printf_arginfo_size_function **__printf_arginfo_table attribute_hidden;
 extern printf_function **__printf_function_table attribute_hidden;
+extern printf_va_arg_function **__printf_va_arg_table attribute_hidden;
 
 
 /* Find the next spec in FORMAT, or the end of the string.  Returns
@@ -114,3 +118,18 @@ extern size_t __parse_one_specmb (const unsigned char *format, size_t posn,
 extern size_t __parse_one_specwc (const unsigned int *format, size_t posn,
 				  struct printf_spec *spec,
 				  size_t *max_ref_arg) attribute_hidden;
+
+
+
+/* This variable is defined in reg-modifier.c.  */
+struct printf_modifier_record;
+extern struct printf_modifier_record **__printf_modifier_table
+     attribute_hidden;
+
+/* Handle registered modifiers.  */
+extern int __handle_registered_modifier_mb (const unsigned char **format,
+					    struct printf_info *info)
+     attribute_hidden;
+extern int __handle_registered_modifier_wc (const unsigned int **format,
+					    struct printf_info *info)
+     attribute_hidden;