gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 423 deletions

diff --git a/gpxe/src/core/vsprintf.c b/gpxe/src/core/vsprintf.c
deleted file mode 100644
index 21ab2429..00000000
--- a/gpxe/src/core/vsprintf.c
+++ /dev/null
@@ -1,423 +0,0 @@
-/*
- * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stddef.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <console.h>
-#include <errno.h>
-#include <gpxe/vsprintf.h>
-
-/** @file */
-
-#define CHAR_LEN	0	/**< "hh" length modifier */
-#define SHORT_LEN	1	/**< "h" length modifier */
-#define INT_LEN		2	/**< no length modifier */
-#define LONG_LEN	3	/**< "l" length modifier */
-#define LONGLONG_LEN	4	/**< "ll" length modifier */
-#define SIZE_T_LEN	5	/**< "z" length modifier */
-
-static uint8_t type_sizes[] = {
-	[CHAR_LEN]	= sizeof ( char ),
-	[SHORT_LEN]	= sizeof ( short ),
-	[INT_LEN]	= sizeof ( int ),
-	[LONG_LEN]	= sizeof ( long ),
-	[LONGLONG_LEN]	= sizeof ( long long ),
-	[SIZE_T_LEN]	= sizeof ( size_t ),
-};
-
-/**
- * Use lower-case for hexadecimal digits
- *
- * Note that this value is set to 0x20 since that makes for very
- * efficient calculations.  (Bitwise-ORing with @c LCASE converts to a
- * lower-case character, for example.)
- */
-#define LCASE 0x20
-
-/**
- * Use "alternate form"
- *
- * For hexadecimal numbers, this means to add a "0x" or "0X" prefix to
- * the number.
- */
-#define ALT_FORM 0x02
-
-/**
- * Format a hexadecimal number
- *
- * @v end		End of buffer to contain number
- * @v num		Number to format
- * @v width		Minimum field width
- * @ret ptr		End of buffer
- *
- * Fills a buffer in reverse order with a formatted hexadecimal
- * number.  The number will be zero-padded to the specified width.
- * Lower-case and "alternate form" (i.e. "0x" prefix) flags may be
- * set.
- *
- * There must be enough space in the buffer to contain the largest
- * number that this function can format.
- */
-static char * format_hex ( char *end, unsigned long long num, int width,
-			   int flags ) {
-	char *ptr = end;
-	int case_mod;
-
-	/* Generate the number */
-	case_mod = flags & LCASE;
-	do {
-		*(--ptr) = "0123456789ABCDEF"[ num & 0xf ] | case_mod;
-		num >>= 4;
-	} while ( num );
-
-	/* Zero-pad to width */
-	while ( ( end - ptr ) < width )
-		*(--ptr) = '0';
-
-	/* Add "0x" or "0X" if alternate form specified */
-	if ( flags & ALT_FORM ) {
-		*(--ptr) = 'X' | case_mod;
-		*(--ptr) = '0';
-	}
-
-	return ptr;
-}
-
-/**
- * Format a decimal number
- *
- * @v end		End of buffer to contain number
- * @v num		Number to format
- * @v width		Minimum field width
- * @ret ptr		End of buffer
- *
- * Fills a buffer in reverse order with a formatted decimal number.
- * The number will be space-padded to the specified width.
- *
- * There must be enough space in the buffer to contain the largest
- * number that this function can format.
- */
-static char * format_decimal ( char *end, signed long num, int width ) {
-	char *ptr = end;
-	int negative = 0;
-
-	/* Generate the number */
-	if ( num < 0 ) {
-		negative = 1;
-		num = -num;
-	}
-	do {
-		*(--ptr) = '0' + ( num % 10 );
-		num /= 10;
-	} while ( num );
-
-	/* Add "-" if necessary */
-	if ( negative )
-		*(--ptr) = '-';
-
-	/* Space-pad to width */
-	while ( ( end - ptr ) < width )
-		*(--ptr) = ' ';
-
-	return ptr;
-}
-
-/**
- * Print character via a printf context
- *
- * @v ctx		Context
- * @v c			Character
- *
- * Call's the printf_context::handler() method and increments
- * printf_context::len.
- */
-static inline void cputchar ( struct printf_context *ctx, unsigned int c ) {
-	ctx->handler ( ctx, c );
-	++ctx->len;
-}
-
-/**
- * Write a formatted string to a printf context
- *
- * @v ctx		Context
- * @v fmt		Format string
- * @v args		Arguments corresponding to the format string
- * @ret len		Length of formatted string
- */
-size_t vcprintf ( struct printf_context *ctx, const char *fmt, va_list args ) {
-	int flags;
-	int width;
-	uint8_t *length;
-	char *ptr;
-	char tmp_buf[32]; /* 32 is enough for all numerical formats.
-			   * Insane width fields could overflow this buffer. */
-
-	/* Initialise context */
-	ctx->len = 0;
-
-	for ( ; *fmt ; fmt++ ) {
-		/* Pass through ordinary characters */
-		if ( *fmt != '%' ) {
-			cputchar ( ctx, *fmt );
-			continue;
-		}
-		fmt++;
-		/* Process flag characters */
-		flags = 0;
-		for ( ; ; fmt++ ) {
-			if ( *fmt == '#' ) {
-				flags |= ALT_FORM;
-			} else if ( *fmt == '0' ) {
-				/* We always 0-pad hex and space-pad decimal */
-			} else {
-				/* End of flag characters */
-				break;
-			}
-		}
-		/* Process field width */
-		width = 0;
-		for ( ; ; fmt++ ) {
-			if ( ( ( unsigned ) ( *fmt - '0' ) ) < 10 ) {
-				width = ( width * 10 ) + ( *fmt - '0' );
-			} else {
-				break;
-			}
-		}
-		/* We don't do floating point */
-		/* Process length modifier */
-		length = &type_sizes[INT_LEN];
-		for ( ; ; fmt++ ) {
-			if ( *fmt == 'h' ) {
-				length--;
-			} else if ( *fmt == 'l' ) {
-				length++;
-			} else if ( *fmt == 'z' ) {
-				length = &type_sizes[SIZE_T_LEN];
-			} else {
-				break;
-			}
-		}
-		/* Process conversion specifier */
-		ptr = tmp_buf + sizeof ( tmp_buf ) - 1;
-		*ptr = '\0';
-		if ( *fmt == 'c' ) {
-			cputchar ( ctx, va_arg ( args, unsigned int ) );
-		} else if ( *fmt == 's' ) {
-			ptr = va_arg ( args, char * );
-			if ( ! ptr )
-				ptr = "<NULL>";
-		} else if ( *fmt == 'p' ) {
-			intptr_t ptrval;
-
-			ptrval = ( intptr_t ) va_arg ( args, void * );
-			ptr = format_hex ( ptr, ptrval, width, 
-					   ( ALT_FORM | LCASE ) );
-		} else if ( ( *fmt & ~0x20 ) == 'X' ) {
-			unsigned long long hex;
-
-			flags |= ( *fmt & 0x20 ); /* LCASE */
-			if ( *length >= sizeof ( unsigned long long ) ) {
-				hex = va_arg ( args, unsigned long long );
-			} else if ( *length >= sizeof ( unsigned long ) ) {
-				hex = va_arg ( args, unsigned long );
-			} else {
-				hex = va_arg ( args, unsigned int );
-			}
-			ptr = format_hex ( ptr, hex, width, flags );
-		} else if ( ( *fmt == 'd' ) || ( *fmt == 'i' ) ){
-			signed long decimal;
-
-			if ( *length >= sizeof ( signed long ) ) {
-				decimal = va_arg ( args, signed long );
-			} else {
-				decimal = va_arg ( args, signed int );
-			}
-			ptr = format_decimal ( ptr, decimal, width );
-		} else {
-			*(--ptr) = *fmt;
-		}
-		/* Write out conversion result */
-		for ( ; *ptr ; ptr++ ) {
-			cputchar ( ctx, *ptr );
-		}
-	}
-
-	return ctx->len;
-}
-
-/** Context used by vsnprintf() and friends */
-struct sputc_context {
-	struct printf_context ctx;
-	/** Buffer for formatted string (used by printf_sputc()) */
-	char *buf;
-	/** Buffer length (used by printf_sputc()) */
-	size_t max_len;	
-};
-
-/**
- * Write character to buffer
- *
- * @v ctx		Context
- * @v c			Character
- */
-static void printf_sputc ( struct printf_context *ctx, unsigned int c ) {
-	struct sputc_context * sctx =
-		container_of ( ctx, struct sputc_context, ctx );
-
-	if ( ctx->len < sctx->max_len )
-		sctx->buf[ctx->len] = c;
-}
-
-/**
- * Write a formatted string to a buffer
- *
- * @v buf		Buffer into which to write the string
- * @v size		Size of buffer
- * @v fmt		Format string
- * @v args		Arguments corresponding to the format string
- * @ret len		Length of formatted string
- *
- * If the buffer is too small to contain the string, the returned
- * length is the length that would have been written had enough space
- * been available.
- */
-int vsnprintf ( char *buf, size_t size, const char *fmt, va_list args ) {
-	struct sputc_context sctx;
-	size_t len;
-	size_t end;
-
-	/* Hand off to vcprintf */
-	sctx.ctx.handler = printf_sputc;
-	sctx.buf = buf;
-	sctx.max_len = size;
-	len = vcprintf ( &sctx.ctx, fmt, args );
-
-	/* Add trailing NUL */
-	if ( size ) {
-		end = size - 1;
-		if ( len < end )
-			end = len;
-		buf[end] = '\0';
-	}
-
-	return len;
-}
-
-/**
- * Write a formatted string to a buffer
- *
- * @v buf		Buffer into which to write the string
- * @v size		Size of buffer
- * @v fmt		Format string
- * @v ...		Arguments corresponding to the format string
- * @ret len		Length of formatted string
- */
-int snprintf ( char *buf, size_t size, const char *fmt, ... ) {
-	va_list args;
-	int i;
-
-	va_start ( args, fmt );
-	i = vsnprintf ( buf, size, fmt, args );
-	va_end ( args );
-	return i;
-}
-
-/**
- * Version of vsnprintf() that accepts a signed buffer size
- *
- * @v buf		Buffer into which to write the string
- * @v size		Size of buffer
- * @v fmt		Format string
- * @v args		Arguments corresponding to the format string
- * @ret len		Length of formatted string
- */
-int vssnprintf ( char *buf, ssize_t ssize, const char *fmt, va_list args ) {
-
-	/* Treat negative buffer size as zero buffer size */
-	if ( ssize < 0 )
-		ssize = 0;
-
-	/* Hand off to vsnprintf */
-	return vsnprintf ( buf, ssize, fmt, args );
-}
-
-/**
- * Version of vsnprintf() that accepts a signed buffer size
- *
- * @v buf		Buffer into which to write the string
- * @v size		Size of buffer
- * @v fmt		Format string
- * @v ...		Arguments corresponding to the format string
- * @ret len		Length of formatted string
- */
-int ssnprintf ( char *buf, ssize_t ssize, const char *fmt, ... ) {
-	va_list args;
-	int len;
-
-	/* Hand off to vssnprintf */
-	va_start ( args, fmt );
-	len = vssnprintf ( buf, ssize, fmt, args );
-	va_end ( args );
-	return len;
-}
-
-/**
- * Write character to console
- *
- * @v ctx		Context
- * @v c			Character
- */
-static void printf_putchar ( struct printf_context *ctx __unused,
-			     unsigned int c ) {
-	putchar ( c );
-}
-
-/**
- * Write a formatted string to the console
- *
- * @v fmt		Format string
- * @v args		Arguments corresponding to the format string
- * @ret len		Length of formatted string
- */
-int vprintf ( const char *fmt, va_list args ) {
-	struct printf_context ctx;
-
-	/* Hand off to vcprintf */
-	ctx.handler = printf_putchar;	
-	return vcprintf ( &ctx, fmt, args );	
-}
-
-/**
- * Write a formatted string to the console.
- *
- * @v fmt		Format string
- * @v ...		Arguments corresponding to the format string
- * @ret	len		Length of formatted string
- */
-int printf ( const char *fmt, ... ) {
-	va_list args;
-	int i;
-
-	va_start ( args, fmt );
-	i = vprintf ( fmt, args );
-	va_end ( args );
-	return i;
-}