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- #ifndef VSPRINTF_H
- #define VSPRINTF_H
-
- /** @file
- *
- * printf and friends.
- *
- * Etherboot's printf() functions understand the following format
- * specifiers:
- *
- * - Hexadecimal integers
- * - @c %[#]x - 4 bytes int (8 hex digits, lower case)
- * - @c %[#]X - 4 bytes int (8 hex digits, upper case)
- * - @c %[#]lx - 8 bytes long (16 hex digits, lower case)
- * - @c %[#]lX - 8 bytes long (16 hex digits, upper case)
- * - @c %[#]hx - 2 bytes int (4 hex digits, lower case)
- * - @c %[#]hX - 2 bytes int (4 hex digits, upper case)
- * - @c %[#]hhx - 1 byte int (2 hex digits, lower case)
- * - @c %[#]hhX - 1 byte int (2 hex digits, upper case)
- * .
- * If the optional # prefix is specified, the output will
- * be prefixed with 0x (or 0X).
- *
- * - Other integers
- * - @c %d - decimal int
- * .
- * Note that any width specification (e.g. the @c 02 in @c %02x)
- * will be accepted but ignored.
- *
- * - Strings and characters
- * - @c %c - char
- * - @c %s - string
- * - @c %m - error message text (i.e. strerror(errno))
- *
- * - Etherboot-specific specifiers
- * - @c %@ - IP address in ddd.ddd.ddd.ddd notation
- * - @c %! - MAC address in xx:xx:xx:xx:xx:xx notation
- *
- *
- * @note Unfortunately, we cannot use <tt> __attribute__ (( format (
- * printf, ... ) )) </tt> to get automatic type checking on arguments,
- * because we use non-standard format characters such as @c %! and
- * @c %@.
- *
- */
-
- extern int sprintf ( char *buf, const char *fmt, ... );
- extern void printf ( const char *fmt, ... );
-
- #endif /* VSPRINTF_H */
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