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-rw-r--r--time/strftime.c140
-rw-r--r--time/strptime.c6
2 files changed, 119 insertions, 27 deletions
diff --git a/time/strftime.c b/time/strftime.c
index 1da36e12d6..fdf0500a92 100644
--- a/time/strftime.c
+++ b/time/strftime.c
@@ -275,7 +275,7 @@ memcpy_lowcase (dest, src, len)
      size_t len;
 {
   while (len-- > 0)
-    dest[len] = TOLOWER (src[len]);
+    dest[len] = TOLOWER ((unsigned char) src[len]);
   return dest;
 }
 
@@ -288,7 +288,7 @@ memcpy_uppcase (dest, src, len)
      size_t len;
 {
   while (len-- > 0)
-    dest[len] = TOUPPER (src[len]);
+    dest[len] = TOUPPER ((unsigned char) src[len]);
   return dest;
 }
 
@@ -348,7 +348,7 @@ iso_week_days (yday, wday)
 }
 
 
-#ifndef _NL_CURRENT
+#if !(defined _NL_CURRENT || HAVE_STRFTIME)
 static char const weekday_name[][10] =
   {
     "Sunday", "Monday", "Tuesday", "Wednesday",
@@ -362,13 +362,27 @@ static char const month_name[][10] =
 #endif
 
 
+#ifdef emacs
+# define my_strftime emacs_strftime
+ /* Emacs 20.2 uses `-Dstrftime=emacs_strftime' when compiling,
+    because that's how strftime used to be configured.
+    Undo this, since it gets in the way of accessing the underlying strftime,
+    which is needed for things like %Ec in Solaris.
+    The following two lines can be removed once Emacs stops compiling with
+    `-Dstrftime=emacs_strftime'.  */
+# undef strftime
+size_t strftime __P ((char *, size_t, const char *, const struct tm *));
+#else
+# define my_strftime strftime
+#endif
+
 #if !defined _LIBC && HAVE_TZNAME && HAVE_TZSET
   /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime.
      Work around this bug by copying *tp before it might be munged.  */
   size_t _strftime_copytm __P ((char *, size_t, const char *,
 			        const struct tm *));
   size_t
-  strftime (s, maxsize, format, tp)
+  my_strftime (s, maxsize, format, tp)
       char *s;
       size_t maxsize;
       const char *format;
@@ -378,10 +392,8 @@ static char const month_name[][10] =
     tmcopy = *tp;
     return _strftime_copytm (s, maxsize, format, &tmcopy);
   }
-# ifdef strftime
-#  undef strftime
-# endif
-# define strftime(S, Maxsize, Format, Tp) \
+# undef my_strftime
+# define my_strftime(S, Maxsize, Format, Tp) \
   _strftime_copytm (S, Maxsize, Format, Tp)
 #endif
 
@@ -393,7 +405,7 @@ static char const month_name[][10] =
    anywhere, so to determine how many characters would be
    written, use NULL for S and (size_t) UINT_MAX for MAXSIZE.  */
 size_t
-strftime (s, maxsize, format, tp)
+my_strftime (s, maxsize, format, tp)
       char *s;
       size_t maxsize;
       const char *format;
@@ -411,6 +423,7 @@ strftime (s, maxsize, format, tp)
   size_t am_len = strlen (a_month);
   size_t ap_len = strlen (ampm);
 #else
+# if !HAVE_STRFTIME
   const char *const f_wkday = weekday_name[tp->tm_wday];
   const char *const f_month = month_name[tp->tm_mon];
   const char *const a_wkday = f_wkday;
@@ -419,9 +432,12 @@ strftime (s, maxsize, format, tp)
   size_t aw_len = 3;
   size_t am_len = 3;
   size_t ap_len = 2;
+# endif
 #endif
+#if defined _NL_CURRENT || !HAVE_STRFTIME
   size_t wkday_len = strlen (f_wkday);
   size_t month_len = strlen (f_month);
+#endif
   const char *zone;
   size_t zonelen;
   size_t i = 0;
@@ -475,6 +491,7 @@ strftime (s, maxsize, format, tp)
       int to_lowcase = 0;
       int to_uppcase = 0;
       int change_case = 0;
+      int format_char;
 
 #if DO_MULTIBYTE
 
@@ -603,7 +620,8 @@ strftime (s, maxsize, format, tp)
 	}
 
       /* Now do the specified format.  */
-      switch (*f)
+      format_char = *f;
+      switch (format_char)
 	{
 #define DO_NUMBER(d, v) \
 	  digits = width == -1 ? d : width;				      \
@@ -626,8 +644,12 @@ strftime (s, maxsize, format, tp)
 	      to_uppcase = 1;
 	      to_lowcase = 0;
 	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
 	  cpy (aw_len, a_wkday);
 	  break;
+#else
+	  goto underlying_strftime;
+#endif
 
 	case 'A':
 	  if (modifier != 0)
@@ -637,15 +659,23 @@ strftime (s, maxsize, format, tp)
 	      to_uppcase = 1;
 	      to_lowcase = 0;
 	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
 	  cpy (wkday_len, f_wkday);
 	  break;
+#else
+	  goto underlying_strftime;
+#endif
 
 	case 'b':
 	case 'h':		/* POSIX.2 extension.  */
 	  if (modifier != 0)
 	    goto bad_format;
+#if defined _NL_CURRENT || !HAVE_STRFTIME
 	  cpy (am_len, a_month);
 	  break;
+#else
+	  goto underlying_strftime;
+#endif
 
 	case 'B':
 	  if (modifier != 0)
@@ -655,8 +685,12 @@ strftime (s, maxsize, format, tp)
 	      to_uppcase = 1;
 	      to_lowcase = 0;
 	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
 	  cpy (month_len, f_month);
 	  break;
+#else
+	  goto underlying_strftime;
+#endif
 
 	case 'c':
 	  if (modifier == 'O')
@@ -666,32 +700,58 @@ strftime (s, maxsize, format, tp)
 		 && *(subfmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT)) != '\0'))
 	    subfmt = _NL_CURRENT (LC_TIME, D_T_FMT);
 #else
+# if HAVE_STRFTIME
+	  goto underlying_strftime;
+# else
 	  subfmt = "%a %b %e %H:%M:%S %Y";
+# endif
 #endif
 
 	subformat:
 	  {
 	    char *old_start = p;
-	    size_t len = strftime (NULL, maxsize - i, subfmt, tp);
+	    size_t len = my_strftime (NULL, maxsize - i, subfmt, tp);
 	    if (len == 0 && *subfmt)
 	      return 0;
-	    add (len, strftime (p, maxsize - i, subfmt, tp));
+	    add (len, my_strftime (p, maxsize - i, subfmt, tp));
 
 	    if (to_uppcase)
 	      while (old_start < p)
 		{
-		  *old_start = TOUPPER (*old_start);
+		  *old_start = TOUPPER ((unsigned char) *old_start);
 		  ++old_start;
 		}
 	  }
 	  break;
 
+#if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY)
+	underlying_strftime:
+	  {
+	    /* The relevant information is available only via the
+	       underlying strftime implementation, so use that.  */
+	    char ufmt[4];
+	    char *u = ufmt;
+	    char ubuf[1024]; /* enough for any single format in practice */
+	    size_t len;
+	    *u++ = '%';
+	    if (modifier != 0)
+	      *u++ = modifier;
+	    *u++ = format_char;
+	    *u = '\0';
+	    len = strftime (ubuf, sizeof ubuf, ufmt, tp);
+	    if (len == 0)
+	      return 0;
+	    cpy (len, ubuf);
+	  }
+	  break;
+#endif
+
 	case 'C':		/* POSIX.2 extension.  */
 	  if (modifier == 'O')
 	    goto bad_format;
-#if HAVE_STRUCT_ERA_ENTRY
 	  if (modifier == 'E')
 	    {
+#if HAVE_STRUCT_ERA_ENTRY
 	      struct era_entry *era = _nl_get_era_entry (tp);
 	      if (era)
 		{
@@ -699,8 +759,13 @@ strftime (s, maxsize, format, tp)
 		  cpy (len, era->name_fmt);
 		  break;
 		}
-	    }
+#else
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
 #endif
+	    }
+
 	  {
 	    int year = tp->tm_year + TM_YEAR_BASE;
 	    DO_NUMBER (1, year / 100 - (year % 100 < 0));
@@ -714,8 +779,13 @@ strftime (s, maxsize, format, tp)
 		 && *(subfmt = _NL_CURRENT (LC_TIME, ERA_D_FMT)) != '\0'))
 	    subfmt = _NL_CURRENT (LC_TIME, D_FMT);
 	  goto subformat;
-#endif
+#else
+# if HAVE_STRFTIME
+	  goto underlying_strftime;
+# else
 	  /* Fall through.  */
+# endif
+#endif
 	case 'D':		/* POSIX.2 extension.  */
 	  if (modifier != 0)
 	    goto bad_format;
@@ -745,9 +815,9 @@ strftime (s, maxsize, format, tp)
 	do_number:
 	  /* Format the number according to the MODIFIER flag.  */
 
-#ifdef _NL_CURRENT
 	  if (modifier == 'O' && 0 <= number_value)
 	    {
+#ifdef _NL_CURRENT
 	      /* Get the locale specific alternate representation of
 		 the number NUMBER_VALUE.  If none exist NULL is returned.  */
 	      const char *cp = _nl_get_alt_digit (number_value);
@@ -761,8 +831,12 @@ strftime (s, maxsize, format, tp)
 		      break;
 		    }
 		}
-	    }
+#else
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
 #endif
+	    }
 	  {
 	    unsigned int u = number_value;
 
@@ -852,6 +926,9 @@ strftime (s, maxsize, format, tp)
 
 	case 'P':
 	  to_lowcase = 1;
+#if !defined _NL_CURRENT && HAVE_STRFTIME
+	  format_char = 'p';
+#endif
 	  /* FALLTHROUGH */
 
 	case 'p':
@@ -860,8 +937,12 @@ strftime (s, maxsize, format, tp)
 	      to_uppcase = 0;
 	      to_lowcase = 1;
 	    }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
 	  cpy (ap_len, ampm);
 	  break;
+#else
+	  goto underlying_strftime;
+#endif
 
 	case 'R':		/* GNU extension.  */
 	  subfmt = "%H:%M";
@@ -927,8 +1008,13 @@ strftime (s, maxsize, format, tp)
 		 && *(subfmt = _NL_CURRENT (LC_TIME, ERA_T_FMT)) != '\0'))
 	    subfmt = _NL_CURRENT (LC_TIME, T_FMT);
 	  goto subformat;
-#endif
+#else
+# if HAVE_STRFTIME
+	  goto underlying_strftime;
+# else
 	  /* Fall through.  */
+# endif
+#endif
 	case 'T':		/* POSIX.2 extension.  */
 	  subfmt = "%H:%M:%S";
 	  goto subformat;
@@ -1000,26 +1086,30 @@ strftime (s, maxsize, format, tp)
 	  DO_NUMBER (1, tp->tm_wday);
 
 	case 'Y':
-#if HAVE_STRUCT_ERA_ENTRY
 	  if (modifier == 'E')
 	    {
+#if HAVE_STRUCT_ERA_ENTRY
 	      struct era_entry *era = _nl_get_era_entry (tp);
 	      if (era)
 		{
 		  subfmt = strchr (era->name_fmt, '\0') + 1;
 		  goto subformat;
 		}
-	    }
+#else
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
 #endif
+	    }
 	  if (modifier == 'O')
 	    goto bad_format;
 	  else
 	    DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE);
 
 	case 'y':
-#if HAVE_STRUCT_ERA_ENTRY
 	  if (modifier == 'E')
 	    {
+#if HAVE_STRUCT_ERA_ENTRY
 	      struct era_entry *era = _nl_get_era_entry (tp);
 	      if (era)
 		{
@@ -1027,8 +1117,12 @@ strftime (s, maxsize, format, tp)
 		  DO_NUMBER (1, (era->offset
 				 + (era->direction == '-' ? -delta : delta)));
 		}
-	    }
+#else
+# if HAVE_STRFTIME
+	      goto underlying_strftime;
+# endif
 #endif
+	    }
 	  DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100);
 
 	case 'Z':
diff --git a/time/strptime.c b/time/strptime.c
index 30b015620d..36f42c9355 100644
--- a/time/strptime.c
+++ b/time/strptime.c
@@ -549,10 +549,7 @@ strptime_internal (buf, format, tm, decided)
 	  break;
 	case 'Y':
 	  /* Match year including century number.  */
-	  if (sizeof (time_t) > 4)
-	    get_number (0, 9999);
-	  else
-	    get_number (0, 2036);
+	  get_number (0, 9999);
 	  tm->tm_year = val - 1900;
 	  break;
 	case 'Z':
@@ -712,6 +709,7 @@ strptime_internal (buf, format, tm, decided)
 	    case 'y':
 	      /* Match year within century using alternate numeric symbols.  */
 	      get_alt_number (0, 99);
+	      tm->tm_year = val >= 69 ? val : val + 100;
 	      break;
 	    default:
 	      return NULL;