First part of automatic repair of MyISAM tables.

Error on full disk on repair.
SIGHUP signal handling.
Update with keys on timestamp
Portability fixes


Docs/manual.texi:
  Added documentation about automatic repair of MyISAM tables
client/mysql.cc:
  Remove usage of tempnam.
include/my_sys.h:
  Added create_temp_file
include/myisam.h:
  Fix for disk full on repair
myisam/mi_check.c:
  Fix for disk full on repair
myisam/sort.c:
  Fix for disk full on repair & removed usage of tempnam()
mysys/mf_cache.c:
  Remove usage of tempnam()
mysys/mf_dirname.c:
  Changed convert_dirname to return end 0
mysys/my_fopen.c:
  Security fixes
mysys/my_tempnam.c:
  remove blanks
readline/bind.c:
  Portability fixes
readline/complete.c:
  Portability fixes
readline/histexpand.c:
  Portability fixes
readline/input.c:
  Portability fixes
readline/search.c:
  Portability fixes
readline/shell.c:
  Portability fixes
readline/terminal.c:
  Portability fixes
readline/tilde.c:
  Portability fixes
readline/undo.c:
  Portability fixes
regex/cname.h:
  Portability fixes
regex/debug.c:
  Portability fixes
regex/main.c:
  Portability fixes
regex/regcomp.c:
  Portability fixes
regex/regerror.c:
  Portability fixes
sql/filesort.cc:
  Remove dummy code
sql/ha_myisam.cc:
  Automatic repair of MyISAM tables
sql/ha_myisam.h:
  Automatic repair of MyISAM tables
sql/handler.cc:
  Automatic repair of MyISAM tables
sql/handler.h:
  Automatic repair of MyISAM tables
sql/key.cc:
  Fix for UPDATE with key on timestamp column
sql/mysql_priv.h:
  Automatic repair of MyISAM tables
sql/mysqld.cc:
  Automatic repair of MyISAM tables & signal SIGHUP handling
sql/sql_base.cc:
  Automatic repair of MyISAM tables
sql/sql_class.cc:
  Automatic repair of MyISAM tables
sql/sql_class.h:
  Fix for insert with reference to columns
sql/sql_insert.cc:
  Fix for insert with reference to columns
sql/table.cc:
  Automatic repair of MyISAM tables
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted

9 files changed, 41 insertions, 35 deletions

diff --git a/readline/bind.c b/readline/bind.c
index 3b311a9e920..bbbbd1b15c4 100644
--- a/readline/bind.c
+++ b/readline/bind.c
@@ -351,7 +351,7 @@ rl_translate_keyseq (seq, array, len)
 {
   register int i, c, l, temp;
 
-  for (i = l = 0; c = seq[i]; i++)
+  for (i = l = 0; (c = seq[i]); i++)
     {
       if (c == '\\')
 	{
@@ -1028,7 +1028,7 @@ rl_parse_and_bind (string)
     {
       int passc = 0;
 
-      for (i = 1; c = string[i]; i++)
+      for (i = 1; (c = string[i]); i++)
 	{
 	  if (passc)
 	    {
@@ -1104,7 +1104,7 @@ rl_parse_and_bind (string)
     {
       int delimiter = string[i++], passc;
 
-      for (passc = 0; c = string[i]; i++)
+      for (passc = 0; (c = string[i]); i++)
 	{
 	  if (passc)
 	    {
@@ -1721,7 +1721,7 @@ rl_function_dumper (print_readably)
 
   fprintf (rl_outstream, "\n");
 
-  for (i = 0; name = names[i]; i++)
+  for (i = 0; (name = names[i]); i++)
     {
       Function *function;
       char **invokers;
diff --git a/readline/complete.c b/readline/complete.c
index dfb1ce0375c..ade317ff578 100644
--- a/readline/complete.c
+++ b/readline/complete.c
@@ -1377,7 +1377,7 @@ completion_matches (text, entry_function)
   match_list = (char **)xmalloc ((match_list_size + 1) * sizeof (char *));
   match_list[1] = (char *)NULL;
 
-  while (string = (*entry_function) (text, matches))
+  while ((string = (*entry_function) (text, matches)))
     {
       if (matches + 1 == match_list_size)
 	match_list = (char **)xrealloc
@@ -1427,7 +1427,7 @@ username_completion_function (text, state)
       setpwent ();
     }
 
-  while (entry = getpwent ())
+  while ((entry = getpwent ()))
     {
       /* Null usernames should result in all users as possible completions. */
       if (namelen == 0 || (STREQN (username, entry->pw_name, namelen)))
diff --git a/readline/histexpand.c b/readline/histexpand.c
index 392e6d38d9e..30c6131801d 100644
--- a/readline/histexpand.c
+++ b/readline/histexpand.c
@@ -200,7 +200,7 @@ get_history_event (string, caller_index, delimiting_quote)
     }
 
   /* Only a closing `?' or a newline delimit a substring search string. */
-  for (local_index = i; c = string[i]; i++)
+  for (local_index = i; (c = string[i]); i++)
     if ((!substring_okay && (whitespace (c) || c == ':' ||
 	(history_search_delimiter_chars && member (c, history_search_delimiter_chars)) ||
 	string[i] == delimiting_quote)) ||
diff --git a/readline/input.c b/readline/input.c
index 3b48483d262..2813c1b9903 100644
--- a/readline/input.c
+++ b/readline/input.c
@@ -368,7 +368,7 @@ rl_read_key ()
   else
     {
       /* If input is coming from a macro, then use that. */
-      if (c = _rl_next_macro_key ())
+      if ((c = _rl_next_macro_key ()))
 	return (c);
 
       /* If the user has an event function, then call it periodically. */
diff --git a/readline/search.c b/readline/search.c
index 6c76e1a1c96..f198e7409e5 100644
--- a/readline/search.c
+++ b/readline/search.c
@@ -174,7 +174,7 @@ noninc_search (dir, pchar)
 #define SEARCH_RETURN rl_restore_prompt (); return
 
   /* Read the search string. */
-  while (c = rl_read_key ())
+  while ((c = rl_read_key ()))
     {
       switch (c)
 	{
diff --git a/readline/shell.c b/readline/shell.c
index 091ec08f645..4d9e0064d3f 100644
--- a/readline/shell.c
+++ b/readline/shell.c
@@ -38,6 +38,10 @@
 #  include "ansi_stdlib.h"
 #endif /* HAVE_STDLIB_H */
 
+#if defined (HAVE_STDIO_H)
+#  include <stdio.h>
+#endif /* HAVE_STDIO_H */
+
 #if defined (HAVE_STRING_H)
 #  include <string.h>
 #else
diff --git a/readline/terminal.c b/readline/terminal.c
index c22ec5170bd..6e94bdc4011 100644
--- a/readline/terminal.c
+++ b/readline/terminal.c
@@ -232,6 +232,8 @@ _rl_set_screen_size (rows, cols)
   screenchars = screenwidth * screenheight;
 }
 
+extern void _rl_redisplay_after_sigwinch();
+
 void
 rl_resize_terminal ()
 {
@@ -251,32 +253,32 @@ struct _tc_string {
    search algorithm to something smarter. */
 static struct _tc_string tc_strings[] =
 {
-  "DC", &term_DC,
-  "IC", &term_IC,
-  "ce", &term_clreol,
-  "cl", &term_clrpag,
-  "cr", &term_cr,
-  "dc", &term_dc,
-  "ei", &term_ei,
-  "ic", &term_ic,
-  "im", &term_im,
-  "kd", &term_kd,
-  "kh", &term_kh,	/* home */
-  "kH", &term_kH,	/* end */
-  "kl", &term_kl,
-  "kr", &term_kr,
-  "ku", &term_ku,
-  "ks", &term_ks,
-  "ke", &term_ke,
-  "le", &term_backspace,
-  "mm", &term_mm,
-  "mo", &term_mo,
+  {"DC", &term_DC},
+  {"IC", &term_IC},
+  {"ce", &term_clreol},
+  {"cl", &term_clrpag},
+  {"cr", &term_cr},
+  {"dc", &term_dc},
+  {"ei", &term_ei},
+  {"ic", &term_ic},
+  {"im", &term_im},
+  {"kd", &term_kd},
+  {"kh", &term_kh},	/* home */
+  {"kH", &term_kH},	/* end */
+  {"kl", &term_kl},
+  {"kr", &term_kr},
+  {"ku", &term_ku},
+  {"ks", &term_ks},
+  {"ke", &term_ke},
+  {"le", &term_backspace},
+  {"mm", &term_mm},
+  {"mo", &term_mo},
 #if defined (HACK_TERMCAP_MOTION)
-  "nd", &term_forward_char,
+  {"nd", &term_forward_char},
 #endif
-  "pc", &term_pc,
-  "up", &term_up,
-  "vb", &visible_bell,
+  {"pc", &term_pc},
+  {"up", &term_up},
+  {"vb", &visible_bell},
 };
 
 #define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string))
diff --git a/readline/tilde.c b/readline/tilde.c
index d1853bd63d6..65a1e2f3902 100644
--- a/readline/tilde.c
+++ b/readline/tilde.c
@@ -182,7 +182,7 @@ tilde_expand (string)
   int result_size, result_index;
 
   result_index = result_size = 0;
-  if (result = strchr (string, '~'))
+  if ((result = strchr (string, '~')))
     result = xmalloc (result_size = (strlen (string) + 16));
   else
     result = xmalloc (result_size = (strlen (string) + 1));
diff --git a/readline/undo.c b/readline/undo.c
index 28ebcc85b93..68710b667ed 100644
--- a/readline/undo.c
+++ b/readline/undo.c
@@ -106,7 +106,7 @@ rl_do_undo ()
 {
   UNDO_LIST *release;
   int waiting_for_begin = 0;
-  int start, end;
+  int start = 0, end = 0;
 
 #define TRANS(i) ((i) == -1 ? rl_point : ((i) == -2 ? rl_end : (i)))