IM mostly fixed according to Brian's directions. Will need to do some additional option handling and cleanups

server-tools/instance-manager/Makefile.am:
  New file added
server-tools/instance-manager/client_func.c:
  typo fixed
server-tools/instance-manager/commands.cc:
  there are no admin-user snd admin-password fields anymore, so no need to show their values
server-tools/instance-manager/guardian.cc:
  Syncronization added -- now guardian wakes up whenever SIGCLD has been catched
server-tools/instance-manager/guardian.h:
  Condition variable declared
server-tools/instance-manager/instance.cc:
  Persistent connection to the instance removed. Now we use SIGTERM instead of com_shutdown for STOP. We also
  manage SIGCHLD ourselves now (therefore no double fork).
server-tools/instance-manager/instance.h:
  Pointer to the instance_map added, MySQL connection structures removed
server-tools/instance-manager/instance_map.cc:
  More syncronization added (to make proper STOP)
server-tools/instance-manager/instance_map.h:
  added condition variable and mutex for connection threads to wait for SIGCHLD
server-tools/instance-manager/instance_options.cc:
  defaults-handling methods have been added.
server-tools/instance-manager/instance_options.h:
  New functions and constants declared
server-tools/instance-manager/listener.cc:
  No changes here (bk bug?)
server-tools/instance-manager/manager.cc:
  SIGCHLD handling added

server-tools/instance-manager/parse_output.cc

@@ -0,0 +1,82 @@
+/* Copyright (C) 2004 MySQL AB
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include <stdio.h>
+#include <my_global.h>
+#include <my_sys.h>
+#include <string.h>
+
+/* buf should be of appropriate size. Otherwise the word will be truncated */
+static int get_word(FILE *file, char *buf, size_t size)
+{
+  int currchar;
+
+  currchar= getc(file);
+
+  /* skip space */
+  while (my_isspace(default_charset_info, (char) currchar) &&
+         currchar != EOF && size > 1)
+  {
+    currchar= getc(file);
+  }
+
+  while (!my_isspace(default_charset_info, (char) currchar) &&
+         currchar != EOF && size > 1)
+  {
+    *buf++= (char) currchar;
+    currchar= getc(file);
+    size--;
+  }
+
+  *buf= '\0';
+  return 0;
+}
+
+
+int parse_output_and_get_value(const char *command, const char *word,
+                               char *result, size_t result_len)
+{
+  FILE *output;
+  int wordlen;
+
+  wordlen= strlen(word);
+
+  output= popen(command, "r");
+
+  /*
+    We want fully buffered stream. We also want system to
+    allocate appropriate buffer.
+  */
+  setvbuf(output, NULL, _IOFBF, 0);
+
+  get_word(output, result, result_len);
+  while (strncmp(word, result, wordlen) && *result != '\0')
+  {
+    get_word(output, result, result_len);
+  }
+
+  /*
+    If we have found the word, return the next one. This is usually
+    an option value.
+  */
+  if (*result != '\0')
+    get_word(output, result, result_len);
+
+  if (pclose(output))
+    return 1;
+
+  return 0;
+}