1 files changed, 101 insertions, 0 deletions
diff --git a/server-tools/instance-manager/parse_output.cc b/server-tools/instance-manager/parse_output.cc
new file mode 100644
index 00000000000..6fee0797395
--- /dev/null
+++ b/server-tools/instance-manager/parse_output.cc
@@ -0,0 +1,101 @@
+/* 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 "parse.h"
+
+#include <stdio.h>
+#include <my_global.h>
+#include <my_sys.h>
+#include <string.h>
+
+
+/*
+  Parse output of the given command
+
+  SYNOPSYS
+    parse_output_and_get_value()
+
+    command      the command to execue with popen.
+    word         the word to look for (usually an option name)
+    result       the buffer to store the next word (option value)
+    result_len   self-explanatory
+
+  DESCRIPTION
+
+    Parse output of the "command". Find the "word" and return the next one
+
+  RETURN
+    0 - ok
+    1 - error occured
+*/
+
+int parse_output_and_get_value(const char *command, const char *word,
+                               char *result, size_t result_len)
+{
+  FILE *output;
+  uint wordlen;
+  /* should be enought to store the string from the output */
+  enum { MAX_LINE_LEN= 512 };
+  char linebuf[MAX_LINE_LEN];
+
+  wordlen= strlen(word);
+
+  if (!(output= popen(command, "r")))
+    goto err;
+
+  /*
+    We want fully buffered stream. We also want system to
+    allocate appropriate buffer.
+  */
+  setvbuf(output, NULL, _IOFBF, 0);
+
+  while (fgets(linebuf, sizeof(linebuf) - 1, output))
+  {
+    uint lineword_len= 0;
+    char *linep= linebuf;
+
+    linebuf[sizeof(linebuf) - 1]= '\0';        /* safety */
+
+    /*
+      Get the word, which might contain non-alphanumeric characters. (Usually
+      these are '/', '-' and '.' in the path expressions and filenames)
+    */
+    get_word((const char **) &linep, &lineword_len, NONSPACE);
+    if (!strncmp(word, linep, wordlen))
+    {
+      /*
+        If we have found the word, return the next one. This is usually
+        an option value.
+      */
+      linep+= lineword_len;                     /* swallow the previous one */
+      get_word((const char **) &linep, &lineword_len, NONSPACE);
+      if (result_len <= lineword_len)
+        goto err;
+      strncpy(result, linep, lineword_len);
+      result[lineword_len]= '\0';
+      goto pclose;
+    }
+  }
+
+pclose:
+  /* we are not interested in the termination status */
+  pclose(output);
+
+  return 0;
+
+err:
+  return 1;
+}