[build] Rename gPXE to iPXE

Access to the gpxe.org and etherboot.org domains and associated
resources has been revoked by the registrant of the domain.  Work
around this problem by renaming project from gPXE to iPXE, and
updating URLs to match.

Also update README, LOG and COPYRIGHTS to remove obsolete information.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 74 insertions, 0 deletions

diff --git a/src/include/ipxe/vsprintf.h b/src/include/ipxe/vsprintf.h
new file mode 100644
index 000000000..c48c97a87
--- /dev/null
+++ b/src/include/ipxe/vsprintf.h
@@ -0,0 +1,74 @@
+#ifndef _IPXE_VSPRINTF_H
+#define _IPXE_VSPRINTF_H
+
+/** @file
+ *
+ * printf() and friends
+ *
+ * Etherboot's printf() functions understand the following subset of
+ * the standard C printf()'s format specifiers:
+ *
+ *	- Flag characters
+ *		- '#'		- Alternate form (i.e. "0x" prefix)
+ *		- '0'		- Zero-pad
+ *	- Field widths
+ *	- Length modifiers
+ *		- 'hh'		- Signed / unsigned char
+ *		- 'h'		- Signed / unsigned short
+ *		- 'l'		- Signed / unsigned long
+ *		- 'll'		- Signed / unsigned long long
+ *		- 'z'		- Signed / unsigned size_t
+ *	- Conversion specifiers
+ *		- 'd'		- Signed decimal
+ *		- 'x','X'	- Unsigned hexadecimal
+ *		- 'c'		- Character
+ *		- 's'		- String
+ *		- 'p'		- Pointer
+ *
+ * Hexadecimal numbers are always zero-padded to the specified field
+ * width (if any); decimal numbers are always space-padded.  Decimal
+ * long longs are not supported.
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+/**
+ * A printf context
+ *
+ * Contexts are used in order to be able to share code between
+ * vprintf() and vsnprintf(), without requiring the allocation of a
+ * buffer for vprintf().
+ */
+struct printf_context {
+	/**
+	 * Character handler
+	 *
+	 * @v ctx	Context
+	 * @v c		Character
+	 *
+	 * This method is called for each character written to the
+	 * formatted string.
+	 */
+	void ( * handler ) ( struct printf_context *ctx, unsigned int c );
+	/** Length of formatted string
+	 *
+	 * When handler() is called, @len will be set to the number of
+	 * characters written so far (i.e. zero for the first call to
+	 * handler()).
+	 */
+	size_t len;
+};
+
+extern size_t vcprintf ( struct printf_context *ctx, const char *fmt,
+			 va_list args );
+extern int vssnprintf ( char *buf, ssize_t ssize, const char *fmt,
+			va_list args );
+extern int __attribute__ (( format ( printf, 3, 4 ) ))
+ssnprintf ( char *buf, ssize_t ssize, const char *fmt, ... );
+
+#endif /* _IPXE_VSPRINTF_H */