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Bug#226047: libc6: Bad strfmon() formatting should be fixed (patch in upstream CVS)



Here is a dpatch file to implement the code change.  With these
changes, it at the moment should be safe to just copy all changes from
localedata/ directly from glibc CVS.
#! /bin/sh -e

# All lines beginning with `# DP:' are a description of the patch.
# DP: Description: Correct strfmon() formatting
# DP: Related bugs: @226047
# DP: Author: Petter Reinholdtsen
# DP: Upstream status: In CVS
# DP: Status Details:
# DP: Date: 2004-03-21

# DP: 2004-01-01  Petter Reinholdtsen  <pere@hungry.com>
# DP: 
# DP: 	* stdlib/strfmon.c: Make formatting of left-justified currency
# DP: 	values match the POSIX standard.  When using format string
# DP: 	"[%-14#5.4n]" to print -123.45, the result should be
# DP: 	"[-$   123.4500 ]", not "[-$123.4500    ]".
# DP: 
# DP: 2003-11-30  Petter Reinholdtsen  <pere@hungry.com>
# DP: 
# DP: 	* stdlib/strfmon.c: Correct formatting of international currency
# DP: 	values.  The international currency formatting should prefer the
# DP: 	int_* values if they are set for a locale, and use the domestic
# DP: 	values if the int_* values are unset.

if [ $# -ne 2 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
    -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
    *)
        echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
        exit 1
esac
exit 0

# append the patch here and adjust the -p? flag in the patch calls.
Index: stdlib/strfmon.c
===================================================================
RCS file: /cvs/glibc/libc/stdlib/strfmon.c,v
retrieving revision 1.23
retrieving revision 1.25
diff -u -3 -p -u -r1.23 -r1.25
--- stdlib/strfmon.c	3 Aug 2002 06:29:57 -0000	1.23
+++ stdlib/strfmon.c	2 Jan 2004 00:58:19 -0000	1.25
@@ -1,5 +1,5 @@
 /* Formatting a monetary value according to the current locale.
-   Copyright (C) 1996-2001, 2002 Free Software Foundation, Inc.
+   Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>
    and Jochen Hein <Jochen.Hein@informatik.TU-Clausthal.de>, 1996.
@@ -128,6 +128,7 @@ __strfmon_l (char *s, size_t maxsize, __
 	__long_double_t ldbl;
       }
       fpnum;
+      int int_format;
       int print_curr_symbol;
       int left_prec;
       int left_pad;
@@ -172,6 +173,7 @@ __strfmon_l (char *s, size_t maxsize, __
 	}
 
       /* Defaults for formatting.  */
+      int_format = 0;			/* Use international curr. symbol */
       print_curr_symbol = 1;		/* Print the currency symbol.  */
       left_prec = -1;			/* No left precision specified.  */
       right_prec = -1;			/* No right precision specified.  */
@@ -233,13 +235,6 @@ __strfmon_l (char *s, size_t maxsize, __
 	  break;
 	}
 
-      /* If not specified by the format string now find the values for
-	 the format specification.  */
-      if (p_sign_posn == -1)
-	p_sign_posn = *_NL_CURRENT (LC_MONETARY, P_SIGN_POSN);
-      if (n_sign_posn == -1)
-	n_sign_posn = *_NL_CURRENT (LC_MONETARY, N_SIGN_POSN);
-
       if (isdigit (*fmt))
 	{
 	  /* Parse field width.  */
@@ -305,31 +300,27 @@ __strfmon_l (char *s, size_t maxsize, __
 	}
 
       /* Handle format specifier.  */
+      char int_symbol[4];
       switch (*fmt++)
 	{
-	case 'i':		/* Use international currency symbol.  */
-	  currency_symbol = _NL_CURRENT (LC_MONETARY, INT_CURR_SYMBOL);
+	case 'i': {		/* Use international currency symbol.  */
+	  const char *int_curr_symbol;
+
+	  int_curr_symbol = _NL_CURRENT (LC_MONETARY, INT_CURR_SYMBOL);
+	  strncpy(int_symbol, int_curr_symbol, 3);
+	  int_symbol[3] = '\0';
+
 	  currency_symbol_len = 3;
-	  space_char = currency_symbol[3];
-	  if (right_prec == -1)
-	    {
-	      if (*_NL_CURRENT (LC_MONETARY, INT_FRAC_DIGITS) == CHAR_MAX)
-		right_prec = 2;
-	      else
-		right_prec = *_NL_CURRENT (LC_MONETARY, INT_FRAC_DIGITS);
-	    }
+	  currency_symbol = &int_symbol[0];
+	  space_char = int_curr_symbol[3];
+	  int_format = 1;
 	  break;
+	}
 	case 'n':		/* Use national currency symbol.  */
 	  currency_symbol = _NL_CURRENT (LC_MONETARY, CURRENCY_SYMBOL);
 	  currency_symbol_len = strlen (currency_symbol);
 	  space_char = ' ';
-	  if (right_prec == -1)
-	    {
-	      if (*_NL_CURRENT (LC_MONETARY, FRAC_DIGITS) == CHAR_MAX)
-		right_prec = 2;
-	      else
-		right_prec = *_NL_CURRENT (LC_MONETARY, FRAC_DIGITS);
-	    }
+	  int_format = 0;
 	  break;
 	default:		/* Any unrecognized format is an error.  */
 	  __set_errno (EINVAL);
@@ -337,6 +328,21 @@ __strfmon_l (char *s, size_t maxsize, __
 	  return -1;
 	}
 
+      /* If not specified by the format string now find the values for
+	 the format specification.  */
+      if (p_sign_posn == -1)
+	p_sign_posn = *_NL_CURRENT (LC_MONETARY, int_format ? INT_P_SIGN_POSN : P_SIGN_POSN);
+      if (n_sign_posn == -1)
+	n_sign_posn = *_NL_CURRENT (LC_MONETARY, int_format ? INT_N_SIGN_POSN : N_SIGN_POSN);
+
+      if (right_prec == -1)
+	{
+	  right_prec = *_NL_CURRENT (LC_MONETARY, int_format ? INT_FRAC_DIGITS : FRAC_DIGITS);
+
+	  if (right_prec == CHAR_MAX)
+	    right_prec = 2;
+	}
+
       /* If we have to print the digits grouped determine how many
 	 extra characters this means.  */
       if (group && left_prec != -1)
@@ -369,27 +375,27 @@ __strfmon_l (char *s, size_t maxsize, __
 	     negative sign we use a '-'.  */
 	  if (*sign_string == '\0')
 	    sign_string = (const char *) "-";
-	  cs_precedes = *_NL_CURRENT (LC_MONETARY, N_CS_PRECEDES);
-	  sep_by_space = *_NL_CURRENT (LC_MONETARY, N_SEP_BY_SPACE);
+	  cs_precedes = *_NL_CURRENT (LC_MONETARY, int_format ? INT_N_CS_PRECEDES : N_CS_PRECEDES);
+	  sep_by_space = *_NL_CURRENT (LC_MONETARY, int_format ? INT_N_SEP_BY_SPACE : N_SEP_BY_SPACE);
 	  sign_posn = n_sign_posn;
 
 	  other_sign_string = _NL_CURRENT (LC_MONETARY, POSITIVE_SIGN);
-	  other_cs_precedes = *_NL_CURRENT (LC_MONETARY, P_CS_PRECEDES);
-	  other_sep_by_space = *_NL_CURRENT (LC_MONETARY, P_SEP_BY_SPACE);
+	  other_cs_precedes = *_NL_CURRENT (LC_MONETARY, int_format ? INT_P_CS_PRECEDES : P_CS_PRECEDES);
+	  other_sep_by_space = *_NL_CURRENT (LC_MONETARY, int_format ? INT_P_SEP_BY_SPACE : P_SEP_BY_SPACE);
 	  other_sign_posn = p_sign_posn;
 	}
       else
 	{
 	  sign_string = _NL_CURRENT (LC_MONETARY, POSITIVE_SIGN);
-	  cs_precedes = *_NL_CURRENT (LC_MONETARY, P_CS_PRECEDES);
-	  sep_by_space = *_NL_CURRENT (LC_MONETARY, P_SEP_BY_SPACE);
+	  cs_precedes = *_NL_CURRENT (LC_MONETARY, int_format ? INT_P_CS_PRECEDES : P_CS_PRECEDES);
+	  sep_by_space = *_NL_CURRENT (LC_MONETARY, int_format ? INT_P_SEP_BY_SPACE : P_SEP_BY_SPACE);
 	  sign_posn = p_sign_posn;
 
 	  other_sign_string = _NL_CURRENT (LC_MONETARY, NEGATIVE_SIGN);
 	  if (*other_sign_string == '\0')
 	    other_sign_string = (const char *) "-";
-	  other_cs_precedes = *_NL_CURRENT (LC_MONETARY, N_CS_PRECEDES);
-	  other_sep_by_space = *_NL_CURRENT (LC_MONETARY, N_SEP_BY_SPACE);
+	  other_cs_precedes = *_NL_CURRENT (LC_MONETARY, int_format ? INT_N_CS_PRECEDES : N_CS_PRECEDES);
+	  other_sep_by_space = *_NL_CURRENT (LC_MONETARY, int_format ? INT_N_SEP_BY_SPACE : N_SEP_BY_SPACE);
 	  other_sign_posn = n_sign_posn;
 	}
 
@@ -564,7 +570,7 @@ __strfmon_l (char *s, size_t maxsize, __
       info.is_long = 0;
       info.alt = 0;
       info.space = 0;
-      info.left = left;
+      info.left = 0;
       info.showsign = 0;
       info.group = group;
       info.pad = pad;

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