commit bash-20080904 snapshot

lib/glob/strmatch.c

@@ -25,7 +25,7 @@
 #include "strmatch.h"
 
 extern int xstrmatch __P((char *, char *, int));
-#if defined (HAVE_MULTIBYTE)
+#if defined (HANDLE_MULTIBYTE)
 extern int internal_wstrmatch __P((wchar_t *, wchar_t *, int));
 #endif
 

lib/glob/strmatch.c~

@@ -0,0 +1,79 @@
+/* strmatch.c -- ksh-like extended pattern matching for the shell and filename
+		globbing. */
+
+/* Copyright (C) 1991-2002 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+   
+   Bash 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 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#include "stdc.h"
+#include "strmatch.h"
+
+extern int xstrmatch __P((char *, char *, int));
+#if defined (HAVE_MULTIBYTE)
+extern int internal_wstrmatch __P((wchar_t *, wchar_t *, int));
+#endif
+
+int
+strmatch (pattern, string, flags)
+     char *pattern;
+     char *string;
+     int flags;
+{
+  if (string == 0 || pattern == 0)
+    return FNM_NOMATCH;
+
+  return (xstrmatch (pattern, string, flags));
+}
+
+#if defined (HANDLE_MULTIBYTE)
+int
+wcsmatch (wpattern, wstring, flags)
+     wchar_t *wpattern;
+     wchar_t *wstring;
+     int flags;
+{
+  if (wstring == 0 || wpattern == 0)
+    return (FNM_NOMATCH);
+
+  return (internal_wstrmatch (wpattern, wstring, flags));
+}
+#endif
+
+#ifdef TEST
+main (c, v)
+     int c;
+     char **v;
+{
+  char *string, *pat;
+
+  string = v[1];
+  pat = v[2];
+
+  if (strmatch (pat, string, 0) == 0)
+    {
+      printf ("%s matches %s\n", string, pat);
+      exit (0);
+    }
+  else
+    {
+      printf ("%s does not match %s\n", string, pat);
+      exit (1);
+    }
+}
+#endif

lib/malloc/stats.c

@@ -183,7 +183,7 @@ _imalloc_fopen (s, fn, def, defbuf, defsiz)
 
       sprintf (pidbuf, "%ld", l);
       if ((strlen (pidbuf) + strlen (fn) + 2) >= sizeof (fname))
-	return;
+	return ((FILE *)0);
       for (sp = 0, p = fname, q = fn; *q; )
 	{
 	  if (sp == 0 && *q == '%' && q[1] == 'p')

lib/malloc/stats.c~

@@ -0,0 +1,205 @@
+/* stats.c - malloc statistics */
+
+/*  Copyright (C) 2001-2003 Free Software Foundation, Inc.
+
+    This file is part of GNU Bash, the Bourne-Again SHell.
+
+   Bash 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 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "imalloc.h"
+
+#ifdef MALLOC_STATS
+
+#include <stdio.h>
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#include <string.h>
+
+#include "mstats.h"
+
+extern int malloc_free_blocks __P((int));
+
+extern struct _malstats _mstats;
+
+extern FILE *_imalloc_fopen __P((char *, char *, char *, char *, size_t));
+
+struct bucket_stats
+malloc_bucket_stats (size)
+     int size;
+{
+  struct bucket_stats v;
+
+  v.nfree = 0;
+
+  if (size < 0 || size >= NBUCKETS)
+    {
+      v.blocksize = 0;
+      v.nused = v.nmal = v.nmorecore = v.nlesscore = v.nsplit = 0;
+      return v;
+    }
+
+  v.blocksize = 1 << (size + 3);
+  v.nused = _mstats.nmalloc[size];
+  v.nmal = _mstats.tmalloc[size];
+  v.nmorecore = _mstats.nmorecore[size];
+  v.nlesscore = _mstats.nlesscore[size];
+  v.nsplit = _mstats.nsplit[size];
+  v.ncoalesce = _mstats.ncoalesce[size];
+
+  v.nfree = malloc_free_blocks (size);	/* call back to malloc.c */
+
+  return v;
+}
+
+/* Return a copy of _MSTATS, with two additional fields filled in:
+   BYTESFREE is the total number of bytes on free lists.  BYTESUSED
+   is the total number of bytes in use.  These two fields are fairly
+   expensive to compute, so we do it only when asked to. */
+struct _malstats
+malloc_stats ()
+{
+  struct _malstats result;
+  struct bucket_stats v;
+  register int i;
+
+  result = _mstats;
+  result.bytesused = result.bytesfree = 0;
+  for (i = 0; i < NBUCKETS; i++)
+    {
+      v = malloc_bucket_stats (i);
+      result.bytesfree += v.nfree * v.blocksize;
+      result.bytesused += v.nused * v.blocksize;
+    }
+  return (result);
+}
+
+static void
+_print_malloc_stats (s, fp)
+     char *s;
+     FILE *fp;
+{
+  register int i;
+  unsigned long totused, totfree;
+  struct bucket_stats v;
+
+  fprintf (fp, "Memory allocation statistics: %s\n    size\tfree\tin use\ttotal\tmorecore lesscore split\tcoalesce\n", s ? s : "");
+  for (i = totused = totfree = 0; i < NBUCKETS; i++)
+    {
+      v = malloc_bucket_stats (i);
+      if (v.nmal > 0)
+	fprintf (fp, "%8lu\t%4d\t%6d\t%5d\t%8d\t%d %5d %8d\n", (unsigned long)v.blocksize, v.nfree, v.nused, v.nmal, v.nmorecore, v.nlesscore, v.nsplit, v.ncoalesce);
+      totfree += v.nfree * v.blocksize;
+      totused += v.nused * v.blocksize;
+    }
+  fprintf (fp, "\nTotal bytes in use: %lu, total bytes free: %lu\n",
+	   totused, totfree);
+  fprintf (fp, "\nTotal bytes requested by application: %lu\n", _mstats.bytesreq);
+  fprintf (fp, "Total mallocs: %d, total frees: %d, total reallocs: %d (%d copies)\n",
+	   _mstats.nmal, _mstats.nfre, _mstats.nrealloc, _mstats.nrcopy);
+  fprintf (fp, "Total sbrks: %d, total bytes via sbrk: %d\n",
+  	   _mstats.nsbrk, _mstats.tsbrk);
+  fprintf (fp, "Total blocks split: %d, total block coalesces: %d\n",
+  	   _mstats.tbsplit, _mstats.tbcoalesce);
+}
+
+void
+print_malloc_stats (s)
+     char *s;
+{
+  _print_malloc_stats (s, stderr);
+}
+
+void
+fprint_malloc_stats (s, fp)
+     char *s;
+     FILE *fp;
+{
+  _print_malloc_stats (s, fp);
+}
+
+#define TRACEROOT "/var/tmp/maltrace/stats."
+
+void
+trace_malloc_stats (s, fn)
+     char *s, *fn;
+{
+  FILE *fp;
+  char defname[sizeof (TRACEROOT) + 64];
+  static char mallbuf[1024];
+
+  fp = _imalloc_fopen (s, fn, TRACEROOT, defname, sizeof (defname));
+  if (fp)
+    {
+      setvbuf (fp, mallbuf, _IOFBF, sizeof (mallbuf));
+      _print_malloc_stats (s, fp);
+      fflush(fp);
+      fclose(fp);
+    }
+}
+
+#endif /* MALLOC_STATS */
+
+#if defined (MALLOC_STATS) || defined (MALLOC_TRACE)
+FILE *
+_imalloc_fopen (s, fn, def, defbuf, defsiz)
+     char *s;
+     char *fn;
+     char *def;
+     char *defbuf;
+     size_t defsiz;
+{
+  char fname[1024];
+  long l;
+  FILE *fp;
+
+  l = (long)getpid ();
+  if (fn == 0)
+    {
+      sprintf (defbuf, "%s%ld", def, l);
+      fp = fopen(defbuf, "w");
+    }
+  else
+    {
+      char *p, *q, *r;
+      char pidbuf[32];
+      int sp;
+
+      sprintf (pidbuf, "%ld", l);
+      if ((strlen (pidbuf) + strlen (fn) + 2) >= sizeof (fname))
+	return;
+      for (sp = 0, p = fname, q = fn; *q; )
+	{
+	  if (sp == 0 && *q == '%' && q[1] == 'p')
+	    {
+	      sp = 1;
+	      for (r = pidbuf; *r; )
+		*p++ = *r++;
+	      q += 2;
+	    }
+	  else
+	    *p++ = *q++;
+	}
+      *p = '\0';
+      fp = fopen (fname, "w");
+    }
+
+  return fp;
+}
+#endif /* MALLOC_STATS || MALLOC_TRACE */

lib/readline/rlprivate.h

@@ -330,11 +330,15 @@ extern UNDO_LIST *_rl_copy_undo_list PARAMS((UNDO_LIST *));
 #if defined (USE_VARARGS) && defined (PREFER_STDARG)
 extern void _rl_ttymsg (const char *, ...)  __attribute__((__format__ (printf, 1, 2)));
 extern void _rl_errmsg (const char *, ...)  __attribute__((__format__ (printf, 1, 2)));
+extern void _rl_trace (const char *, ...)  __attribute__((__format__ (printf, 1, 2)));
 #else
 extern void _rl_ttymsg ();
 extern void _rl_errmsg ();
+extern void _rl_trace ();
 #endif
 
+extern int _rl_tropen PARAMS((void));
+
 extern int _rl_abort_internal PARAMS((void));
 extern char *_rl_strindex PARAMS((const char *, const char *));
 extern int _rl_qsort_string_compare PARAMS((char **, char **));

lib/readline/rlprivate.h~

@@ -1,25 +1,24 @@
 /* rlprivate.h -- functions and variables global to the readline library,
 		  but not intended for use by applications. */
 
-/* Copyright (C) 1999-2007 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2008 Free Software Foundation, Inc.
 
-   This file is part of the GNU Readline Library, a library for
-   reading lines of text with interactive input and history editing.
+   This file is part of the GNU Readline Library (Readline), a library
+   for reading lines of text with interactive input and history editing.      
 
-   The GNU Readline Library 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, or
+   Readline 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 3 of the License, or
    (at your option) any later version.
 
-   The GNU Readline Library 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
+   Readline 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.
 
-   The GNU General Public License is often shipped with GNU software, and
-   is generally kept in a file called COPYING or LICENSE.  If you do not
-   have a copy of the license, write to the Free Software Foundation,
-   59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+   You should have received a copy of the GNU General Public License
+   along with Readline.  If not, see <http://www.gnu.org/licenses/>.
+*/
 
 #if !defined (_RL_PRIVATE_H_)
 #define _RL_PRIVATE_H_
@@ -371,6 +370,7 @@ extern int _rl_complete_show_all;
 extern int _rl_complete_show_unmodified;
 extern int _rl_complete_mark_directories;
 extern int _rl_complete_mark_symlink_dirs;
+extern int _rl_completion_prefix_display_length;
 extern int _rl_print_completions_horizontally;
 extern int _rl_completion_case_fold;
 extern int _rl_match_hidden_files;

lib/sh/mktime.c

@@ -50,11 +50,10 @@
 #include <limits.h>
 #endif
 
+#include "bashansi.h"
+
 #if DEBUG
 #include <stdio.h>
-#if STDC_HEADERS
-#include <stdlib.h>
-#endif
 /* Make it work even if the system's libc has its own mktime routine.  */
 #define mktime my_mktime
 #endif /* DEBUG */

lib/sh/mktime.c~

@@ -0,0 +1,426 @@
+/* mktime - convert struct tm to a time_t value */
+
+/* Copyright (C) 1993-2002 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+   Contributed by Paul Eggert (eggert@twinsun.com).
+
+   Bash 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 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/* Define this to have a standalone program to test this implementation of
+   mktime.  */
+/* #define DEBUG 1 */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef _LIBC
+# define HAVE_LIMITS_H 1
+# define HAVE_LOCALTIME_R 1
+# define STDC_HEADERS 1
+#endif
+
+/* Assume that leap seconds are possible, unless told otherwise.
+   If the host has a `zic' command with a `-L leapsecondfilename' option,
+   then it supports leap seconds; otherwise it probably doesn't.  */
+#ifndef LEAP_SECONDS_POSSIBLE
+#define LEAP_SECONDS_POSSIBLE 1
+#endif
+
+#ifndef VMS
+#include <sys/types.h>		/* Some systems define `time_t' here.  */
+#else
+#include <stddef.h>
+#endif
+#include <time.h>
+
+#if HAVE_LIMITS_H
+#include <limits.h>
+#endif
+
+#if DEBUG
+#include <stdio.h>
+#if STDC_HEADERS
+#include <stdlib.h>
+#endif
+/* Make it work even if the system's libc has its own mktime routine.  */
+#define mktime my_mktime
+#endif /* DEBUG */
+
+#ifndef __P
+#if defined (__GNUC__) || (defined (__STDC__) && __STDC__)
+#define __P(args) args
+#else
+#define __P(args) ()
+#endif  /* GCC.  */
+#endif  /* Not __P.  */
+
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif
+
+#ifndef INT_MIN
+#define INT_MIN (~0 << (sizeof (int) * CHAR_BIT - 1))
+#endif
+#ifndef INT_MAX
+#define INT_MAX (~0 - INT_MIN)
+#endif
+
+#ifndef TIME_T_MIN
+#define TIME_T_MIN (0 < (time_t) -1 ? (time_t) 0 \
+		    : ~ (time_t) 0 << (sizeof (time_t) * CHAR_BIT - 1))
+#endif
+#ifndef TIME_T_MAX
+#define TIME_T_MAX (~ (time_t) 0 - TIME_T_MIN)
+#endif
+
+#define TM_YEAR_BASE 1900
+#define EPOCH_YEAR 1970
+
+#ifndef __isleap
+/* Nonzero if YEAR is a leap year (every 4 years,
+   except every 100th isn't, and every 400th is).  */
+#define	__isleap(year)	\
+  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
+#endif
+
+/* How many days come before each month (0-12).  */
+const unsigned short int __mon_yday[2][13] =
+  {
+    /* Normal years.  */
+    { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
+    /* Leap years.  */
+    { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
+  };
+
+static time_t ydhms_tm_diff __P ((int, int, int, int, int, const struct tm *));
+time_t __mktime_internal __P ((struct tm *,
+			       struct tm *(*) (const time_t *, struct tm *),
+			       time_t *));
+
+
+static struct tm *my_localtime_r __P ((const time_t *, struct tm *));
+static struct tm *
+my_localtime_r (t, tp)
+     const time_t *t;
+     struct tm *tp;
+{
+  struct tm *l = localtime (t);
+  if (! l)
+    return 0;
+  *tp = *l;
+  return tp;
+}
+
+
+/* Yield the difference between (YEAR-YDAY HOUR:MIN:SEC) and (*TP),
+   measured in seconds, ignoring leap seconds.
+   YEAR uses the same numbering as TM->tm_year.
+   All values are in range, except possibly YEAR.
+   If overflow occurs, yield the low order bits of the correct answer.  */
+static time_t
+ydhms_tm_diff (year, yday, hour, min, sec, tp)
+     int year, yday, hour, min, sec;
+     const struct tm *tp;
+{
+  /* Compute intervening leap days correctly even if year is negative.
+     Take care to avoid int overflow.  time_t overflow is OK, since
+     only the low order bits of the correct time_t answer are needed.
+     Don't convert to time_t until after all divisions are done, since
+     time_t might be unsigned.  */
+  int a4 = (year >> 2) + (TM_YEAR_BASE >> 2) - ! (year & 3);
+  int b4 = (tp->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (tp->tm_year & 3);
+  int a100 = a4 / 25 - (a4 % 25 < 0);
+  int b100 = b4 / 25 - (b4 % 25 < 0);
+  int a400 = a100 >> 2;
+  int b400 = b100 >> 2;
+  int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
+  time_t years = year - (time_t) tp->tm_year;
+  time_t days = (365 * years + intervening_leap_days
+		 + (yday - tp->tm_yday));
+  return (60 * (60 * (24 * days + (hour - tp->tm_hour))
+		+ (min - tp->tm_min))
+	  + (sec - tp->tm_sec));
+}
+
+
+static time_t localtime_offset;
+
+/* Convert *TP to a time_t value.  */
+time_t
+mktime (tp)
+     struct tm *tp;
+{
+#ifdef _LIBC
+  /* POSIX.1 8.1.1 requires that whenever mktime() is called, the
+     time zone names contained in the external variable `tzname' shall
+     be set as if the tzset() function had been called.  */
+  __tzset ();
+#endif
+
+  return __mktime_internal (tp, my_localtime_r, &localtime_offset);
+}
+
+/* Convert *TP to a time_t value, inverting
+   the monotonic and mostly-unit-linear conversion function CONVERT.
+   Use *OFFSET to keep track of a guess at the offset of the result,
+   compared to what the result would be for UTC without leap seconds.
+   If *OFFSET's guess is correct, only one CONVERT call is needed.  */
+time_t
+__mktime_internal (tp, convert, offset)
+     struct tm *tp;
+     struct tm *(*convert) __P ((const time_t *, struct tm *));
+     time_t *offset;
+{
+  time_t t, dt, t0;
+  struct tm tm;
+
+  /* The maximum number of probes (calls to CONVERT) should be enough
+     to handle any combinations of time zone rule changes, solar time,
+     and leap seconds.  Posix.1 prohibits leap seconds, but some hosts
+     have them anyway.  */
+  int remaining_probes = 4;
+
+  /* Time requested.  Copy it in case CONVERT modifies *TP; this can
+     occur if TP is localtime's returned value and CONVERT is localtime.  */
+  int sec = tp->tm_sec;
+  int min = tp->tm_min;
+  int hour = tp->tm_hour;
+  int mday = tp->tm_mday;
+  int mon = tp->tm_mon;
+  int year_requested = tp->tm_year;
+  int isdst = tp->tm_isdst;
+
+  /* Ensure that mon is in range, and set year accordingly.  */
+  int mon_remainder = mon % 12;
+  int negative_mon_remainder = mon_remainder < 0;
+  int mon_years = mon / 12 - negative_mon_remainder;
+  int year = year_requested + mon_years;
+
+  /* The other values need not be in range:
+     the remaining code handles minor overflows correctly,
+     assuming int and time_t arithmetic wraps around.
+     Major overflows are caught at the end.  */
+
+  /* Calculate day of year from year, month, and day of month.
+     The result need not be in range.  */
+  int yday = ((__mon_yday[__isleap (year + TM_YEAR_BASE)]
+	       [mon_remainder + 12 * negative_mon_remainder])
+	      + mday - 1);
+
+#if LEAP_SECONDS_POSSIBLE
+  /* Handle out-of-range seconds specially,
+     since ydhms_tm_diff assumes every minute has 60 seconds.  */
+  int sec_requested = sec;
+  if (sec < 0)
+    sec = 0;
+  if (59 < sec)
+    sec = 59;
+#endif
+
+  /* Invert CONVERT by probing.  First assume the same offset as last time.
+     Then repeatedly use the error to improve the guess.  */
+
+  tm.tm_year = EPOCH_YEAR - TM_YEAR_BASE;
+  tm.tm_yday = tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
+  t0 = ydhms_tm_diff (year, yday, hour, min, sec, &tm);
+
+  for (t = t0 + *offset;
+       (dt = ydhms_tm_diff (year, yday, hour, min, sec, (*convert) (&t, &tm)));
+       t += dt)
+    if (--remaining_probes == 0)
+      return -1;
+
+  /* Check whether tm.tm_isdst has the requested value, if any.  */
+  if (0 <= isdst && 0 <= tm.tm_isdst)
+    {
+      int dst_diff = (isdst != 0) - (tm.tm_isdst != 0);
+      if (dst_diff)
+	{
+	  /* Move two hours in the direction indicated by the disagreement,
+	     probe some more, and switch to a new time if found.
+	     The largest known fallback due to daylight savings is two hours:
+	     once, in Newfoundland, 1988-10-30 02:00 -> 00:00.  */
+	  time_t ot = t - 2 * 60 * 60 * dst_diff;
+	  while (--remaining_probes != 0)
+	    {
+	      struct tm otm;
+	      if (! (dt = ydhms_tm_diff (year, yday, hour, min, sec,
+					 (*convert) (&ot, &otm))))
+		{
+		  t = ot;
+		  tm = otm;
+		  break;
+		}
+	      if ((ot += dt) == t)
+		break;  /* Avoid a redundant probe.  */
+	    }
+	}
+    }
+
+  *offset = t - t0;
+
+#if LEAP_SECONDS_POSSIBLE
+  if (sec_requested != tm.tm_sec)
+    {
+      /* Adjust time to reflect the tm_sec requested, not the normalized value.
+	 Also, repair any damage from a false match due to a leap second.  */
+      t += sec_requested - sec + (sec == 0 && tm.tm_sec == 60);
+      (*convert) (&t, &tm);
+    }
+#endif
+
+  if (TIME_T_MAX / INT_MAX / 366 / 24 / 60 / 60 < 3)
+    {
+      /* time_t isn't large enough to rule out overflows in ydhms_tm_diff,
+	 so check for major overflows.  A gross check suffices,
+	 since if t has overflowed, it is off by a multiple of
+	 TIME_T_MAX - TIME_T_MIN + 1.  So ignore any component of
+	 the difference that is bounded by a small value.  */
+
+      double dyear = (double) year_requested + mon_years - tm.tm_year;
+      double dday = 366 * dyear + mday;
+      double dsec = 60 * (60 * (24 * dday + hour) + min) + sec_requested;
+
+      if (TIME_T_MAX / 3 - TIME_T_MIN / 3 < (dsec < 0 ? - dsec : dsec))
+	return -1;
+    }
+
+  *tp = tm;
+  return t;
+}
+
+#ifdef weak_alias
+weak_alias (mktime, timelocal)
+#endif
+
+#if DEBUG
+
+static int
+not_equal_tm (a, b)
+     struct tm *a;
+     struct tm *b;
+{
+  return ((a->tm_sec ^ b->tm_sec)
+	  | (a->tm_min ^ b->tm_min)
+	  | (a->tm_hour ^ b->tm_hour)
+	  | (a->tm_mday ^ b->tm_mday)
+	  | (a->tm_mon ^ b->tm_mon)
+	  | (a->tm_year ^ b->tm_year)
+	  | (a->tm_mday ^ b->tm_mday)
+	  | (a->tm_yday ^ b->tm_yday)
+	  | (a->tm_isdst ^ b->tm_isdst));
+}
+
+static void
+print_tm (tp)
+     struct tm *tp;
+{
+  printf ("%04d-%02d-%02d %02d:%02d:%02d yday %03d wday %d isdst %d",
+	  tp->tm_year + TM_YEAR_BASE, tp->tm_mon + 1, tp->tm_mday,
+	  tp->tm_hour, tp->tm_min, tp->tm_sec,
+	  tp->tm_yday, tp->tm_wday, tp->tm_isdst);
+}
+
+static int
+check_result (tk, tmk, tl, tml)
+     time_t tk;
+     struct tm tmk;
+     time_t tl;
+     struct tm tml;
+{
+  if (tk != tl || not_equal_tm (&tmk, &tml))
+    {
+      printf ("mktime (");
+      print_tm (&tmk);
+      printf (")\nyields (");
+      print_tm (&tml);
+      printf (") == %ld, should be %ld\n", (long) tl, (long) tk);
+      return 1;
+    }
+
+  return 0;
+}
+
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  int status = 0;
+  struct tm tm, tmk, tml;
+  time_t tk, tl;
+  char trailer;
+
+  if ((argc == 3 || argc == 4)
+      && (sscanf (argv[1], "%d-%d-%d%c",
+		  &tm.tm_year, &tm.tm_mon, &tm.tm_mday, &trailer)
+	  == 3)
+      && (sscanf (argv[2], "%d:%d:%d%c",
+		  &tm.tm_hour, &tm.tm_min, &tm.tm_sec, &trailer)
+	  == 3))
+    {
+      tm.tm_year -= TM_YEAR_BASE;
+      tm.tm_mon--;
+      tm.tm_isdst = argc == 3 ? -1 : atoi (argv[3]);
+      tmk = tm;
+      tl = mktime (&tmk);
+      tml = *localtime (&tl);
+      printf ("mktime returns %ld == ", (long) tl);
+      print_tm (&tmk);
+      printf ("\n");
+      status = check_result (tl, tmk, tl, tml);
+    }
+  else if (argc == 4 || (argc == 5 && strcmp (argv[4], "-") == 0))
+    {
+      time_t from = atol (argv[1]);
+      time_t by = atol (argv[2]);
+      time_t to = atol (argv[3]);
+
+      if (argc == 4)
+	for (tl = from; tl <= to; tl += by)
+	  {
+	    tml = *localtime (&tl);
+	    tmk = tml;
+	    tk = mktime (&tmk);
+	    status |= check_result (tk, tmk, tl, tml);
+	  }
+      else
+	for (tl = from; tl <= to; tl += by)
+	  {
+	    /* Null benchmark.  */
+	    tml = *localtime (&tl);
+	    tmk = tml;
+	    tk = tl;
+	    status |= check_result (tk, tmk, tl, tml);
+	  }
+    }
+  else
+    printf ("Usage:\
+\t%s YYYY-MM-DD HH:MM:SS [ISDST] # Test given time.\n\
+\t%s FROM BY TO # Test values FROM, FROM+BY, ..., TO.\n\
+\t%s FROM BY TO - # Do not test those values (for benchmark).\n",
+	    argv[0], argv[0], argv[0]);
+
+  return status;
+}
+
+#endif /* DEBUG */
+
+/*
+Local Variables:
+compile-command: "gcc -DDEBUG=1 -Wall -O -g mktime.c -o mktime"
+End:
+*/

lib/sh/zgetline.c

@@ -34,6 +34,9 @@
 extern int errno;
 #endif
 
+extern ssize_t zread __P((int, char *, size_t));
+extern ssize_t zreadc __P((int, char *));
+
 /* Initial memory allocation for automatic growing buffer in zreadlinec */
 #define GET_LINE_INITIAL_ALLOCATION 16
 

lib/sh/zgetline.c~

@@ -0,0 +1,112 @@
+/* zgetline - read a line of input from a specified file descriptor and return
+	      a pointer to a newly-allocated buffer containing the data. */
+
+/* Copyright (C) 2008 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash 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 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#include <sys/types.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#include <errno.h>
+#include "xmalloc.h"
+
+#if !defined (errno)
+extern int errno;
+#endif
+
+/* Initial memory allocation for automatic growing buffer in zreadlinec */
+#define GET_LINE_INITIAL_ALLOCATION 16
+
+/* Derived from GNU libc's getline.
+   The behavior is almost the same as getline. See man getline.
+   The differences are
+   	(1) using file descriptor instead of FILE *,
+	(2) the order of arguments; the file descriptor comes the first, and
+	(3) the addtion of thired argument, UNBUFFERED_READ; this argument
+	    controls whether get_line uses buffering or not to get a byte data
+	    from FD. get_line uses zreadc if UNBUFFERED_READ is zero; and
+	    uses zread if UNBUFFERED_READ is non-zero.
+
+   Returns number of bytes read or -1 on error. */
+
+ssize_t
+zgetline (fd, lineptr, n, unbuffered_read)
+     int fd;
+     char **lineptr;
+     size_t *n;
+     int unbuffered_read;
+{
+  int nr, retval;
+  char *line, c;
+
+  if (lineptr == 0 || n == 0 || (*lineptr == 0 && *n != 0))
+    return -1;
+
+  nr = 0;
+  line = *lineptr;
+  
+  while (1)
+    {
+      retval = unbuffered_read ? zread (fd, &c, 1) : zreadc(fd, &c);
+
+      if (retval <= 0)
+	{
+	  line[nr] = '\0';
+	  break;
+	}
+
+      if (nr + 2 >= *n)
+	{
+	 size_t new_size;
+
+	 new_size = (*n == 0) ? GET_LINE_INITIAL_ALLOCATION : *n * 2;
+	 line = xrealloc (*lineptr, new_size);
+
+	 if (line)
+	   {
+	     *lineptr = line;
+	     *n = new_size;
+	   }
+	 else
+	   {
+	     if (*n > 0)
+	       {
+		 (*lineptr)[*n - 1] = '\0';
+		 nr = *n - 2;
+	       }
+	     break;
+	   }
+	}
+
+      line[nr] = c;
+      nr++;
+
+      if (c == '\n')
+	{
+	  line[nr] = '\0';
+	  break;
+	}
+    }
+
+  return nr - 1;
+}