--- Libc/Libc-391.2.3/gen/FreeBSD/err.c.patch
+++ Libc/Libc-583/gen/FreeBSD/err.c.patch
@@ -1,24 +1,114 @@
---- err.c.orig	2004-08-30 09:45:37.000000000 -0700
-+++ err.c	2004-08-30 09:58:06.000000000 -0700
-@@ -48,8 +48,15 @@
- 
+--- err.c.orig	2009-05-12 11:21:55.000000000 -0700
++++ err.c	2009-05-23 13:27:52.000000000 -0700
+@@ -44,12 +44,105 @@ __FBSDID("$FreeBSD: src/lib/libc/gen/err
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
++#include <vis.h>
+ #include "un-namespace.h"
+ 
++#ifdef __BLOCKS__
++#include <Block.h>
++#endif /* __BLOCKS__ */
  #include "libc_private.h"
  
 -static FILE *err_file; /* file to use for error output */
 -static void (*err_exit)(int);
++#define ERR_EXIT_UNDEF	0
++#ifdef __BLOCKS__
++#define ERR_EXIT_BLOCK	1
++#endif /* __BLOCKS__ */
++#define ERR_EXIT_FUNC	2
++struct _e_err_exit {
++	unsigned int type;
++#ifdef __BLOCKS__
++	union {
++#endif /* __BLOCKS__ */
++		void (*func)(int);
++#ifdef __BLOCKS__
++		void (^block)(int);
++	};
++#endif /* __BLOCKS__ */
++};
++
 +#ifdef BUILDING_VARIANT
 +
 +__private_extern__ FILE *_e_err_file; /* file to use for error output */
-+__private_extern__ void (*_e_err_exit)(int);
++__private_extern__ struct _e_err_exit _e_err_exit;
++__private_extern__ void _e_visprintf(FILE * __restrict, const char * __restrict, va_list);
 +
 +#else /* !BUILDING_VARIANT */
 +
 +__private_extern__ FILE *_e_err_file = NULL; /* file to use for error output */
-+__private_extern__ void (*_e_err_exit)(int) = NULL;
++__private_extern__ struct _e_err_exit _e_err_exit = {ERR_EXIT_UNDEF};
++
++/*
++ * zero means pass as is
++ * 255 means use \nnn (octal)
++ * otherwise use \x (x is value)
++ * (NUL isn't used)
++ */
++static unsigned char escape[256] = {
++     /* NUL  SOH  STX  ETX  EOT  ENQ  ACK  BEL */
++	0  , 255, 255, 255, 255, 255, 255, 'a',
++     /* BS   HT   NL   VT   NP   CR   SO   SI  */
++	'b', 't', 'n', 'v', 'f', 'r', 255, 255,
++     /* DLE  DC1  DC2  DC3  DC4  NAK  SYN  ETB */
++	255, 255, 255, 255, 255, 255, 255, 255,
++     /* CAN  EM   SUB  ESC  FS   GS   RS   US  */
++	255, 255, 255, 255, 255, 255, 255, 255,
++     /* the rest are zero */
++};
++
++/*
++ * Make characters visible.  If we can't allocate enough
++ * memory, we fall back on vfprintf().
++ */
++__private_extern__ void
++_e_visprintf(FILE * __restrict stream, const char * __restrict format, va_list ap)
++{
++	int failed = 0;
++	char *str, *visstr;
++	va_list backup;
++
++	va_copy(backup, ap);
++	vasprintf(&str, format, ap);
++	if (str != NULL) {
++		if ((visstr = malloc(4 * strlen(str) + 1)) != NULL) {
++			unsigned char *fp = (unsigned char *)str;
++			unsigned char *tp = (unsigned char *)visstr;
++			while(*fp) {
++				switch(escape[*fp]) {
++				case 0:
++					*tp++ = *fp;
++					break;
++				case 255:
++					sprintf(tp, "\\%03o", *fp);
++					tp += 4;
++					break;
++				default:
++					*tp++ = '\\';
++					*tp++ = escape[*fp];
++					break;
++				}
++				fp++;
++			}
++			*tp = 0;
++			fputs(visstr, stream);
++			free(visstr);
++		} else
++			failed = 1;
++		free(str);
++	} else
++		failed = 1;
++	if (failed)
++		vfprintf(stream, format, backup);
++	va_end(backup);
++}
  
  /*
   * This is declared to take a `void *' so that the caller is not required
-@@ -60,16 +67,17 @@
+@@ -60,16 +153,27 @@ void
  err_set_file(void *fp)
  {
  	if (fp)
@@ -33,13 +123,23 @@
  err_set_exit(void (*ef)(int))
  {
 -	err_exit = ef;
-+	_e_err_exit = ef;
- }
++	_e_err_exit.type = ERR_EXIT_FUNC;
++	_e_err_exit.func = ef;
++}
++
++#ifdef __BLOCKS__
++void
++err_set_exit_b(void (^ef)(int))
++{
++	_e_err_exit.type = ERR_EXIT_BLOCK;
++	_e_err_exit.block = Block_copy(ef);
+ }
++#endif /* __BLOCKS__ */
 +#endif /* !BUILDING_VARIANT */
  
  __weak_reference(_err, err);
  
-@@ -107,16 +115,16 @@
+@@ -107,16 +211,21 @@ verrc(eval, code, fmt, ap)
  	const char *fmt;
  	va_list ap;
  {
@@ -51,19 +151,24 @@
  	if (fmt != NULL) {
 -		vfprintf(err_file, fmt, ap);
 -		fprintf(err_file, ": ");
-+		vfprintf(_e_err_file, fmt, ap);
++		_e_visprintf(_e_err_file, fmt, ap);
 +		fprintf(_e_err_file, ": ");
  	}
 -	fprintf(err_file, "%s\n", strerror(code));
 -	if (err_exit)
 -		err_exit(eval);
 +	fprintf(_e_err_file, "%s\n", strerror(code));
-+	if (_e_err_exit)
-+		_e_err_exit(eval);
++	if (_e_err_exit.type)
++#ifdef __BLOCKS__
++		if (_e_err_exit.type == ERR_EXIT_BLOCK)
++			_e_err_exit.block(eval);
++		else
++#endif /* __BLOCKS__ */
++			_e_err_exit.func(eval);
  	exit(eval);
  }
  
-@@ -135,14 +143,14 @@
+@@ -135,14 +244,19 @@ verrx(eval, fmt, ap)
  	const char *fmt;
  	va_list ap;
  {
@@ -77,14 +182,19 @@
 -	fprintf(err_file, "\n");
 -	if (err_exit)
 -		err_exit(eval);
-+		vfprintf(_e_err_file, fmt, ap);
++		_e_visprintf(_e_err_file, fmt, ap);
 +	fprintf(_e_err_file, "\n");
-+	if (_e_err_exit)
-+		_e_err_exit(eval);
++	if (_e_err_exit.type)
++#ifdef __BLOCKS__
++		if (_e_err_exit.type == ERR_EXIT_BLOCK)
++			_e_err_exit.block(eval);
++		else
++#endif /* __BLOCKS__ */
++			_e_err_exit.func(eval);
  	exit(eval);
  }
  
-@@ -180,14 +188,14 @@
+@@ -180,14 +294,14 @@ vwarnc(code, fmt, ap)
  	const char *fmt;
  	va_list ap;
  {
@@ -96,7 +206,7 @@
  	if (fmt != NULL) {
 -		vfprintf(err_file, fmt, ap);
 -		fprintf(err_file, ": ");
-+		vfprintf(_e_err_file, fmt, ap);
++		_e_visprintf(_e_err_file, fmt, ap);
 +		fprintf(_e_err_file, ": ");
  	}
 -	fprintf(err_file, "%s\n", strerror(code));
@@ -104,7 +214,7 @@
  }
  
  void
-@@ -204,10 +212,10 @@
+@@ -204,10 +318,10 @@ vwarnx(fmt, ap)
  	const char *fmt;
  	va_list ap;
  {
@@ -116,6 +226,6 @@
  	if (fmt != NULL)
 -		vfprintf(err_file, fmt, ap);
 -	fprintf(err_file, "\n");
-+		vfprintf(_e_err_file, fmt, ap);
++		_e_visprintf(_e_err_file, fmt, ap);
 +	fprintf(_e_err_file, "\n");
  }