[GNUnet-SVN] r20777 - Extractor/src/main

[gnunet]

Author: grothoff
Date: 2012-03-26 18:20:17 +0200 (Mon, 26 Mar 2012)
New Revision: 20777

Modified:
   Extractor/src/main/Makefile.am
   Extractor/src/main/extractor.c
Log:
-LRN: Divide-extractor.c.patch was the first thing i did, once i
realized that extractor.c is just too long.



Modified: Extractor/src/main/Makefile.am
===================================================================
--- Extractor/src/main/Makefile.am      2012-03-26 16:18:18 UTC (rev 20776)
+++ Extractor/src/main/Makefile.am      2012-03-26 16:20:17 UTC (rev 20777)
@@ -36,6 +36,8 @@
 
 libextractor_la_SOURCES = \
   extractor.c \
+  extractor_plugpath.c \
+  extractor_plugins.c \
   extractor_metatypes.c \
   extractor_print.c 
 

Modified: Extractor/src/main/extractor.c
===================================================================
--- Extractor/src/main/extractor.c      2012-03-26 16:18:18 UTC (rev 20776)
+++ Extractor/src/main/extractor.c      2012-03-26 16:20:17 UTC (rev 20777)
@@ -38,6 +38,8 @@
 #include <zlib.h>
 #endif
 
+#include "extractor_plugpath.h"
+#include "extractor_plugins.h"
 
 
 /**
@@ -65,912 +67,6 @@
 
 
 /**
- * Linked list of extractor plugins.  An application builds this list
- * by telling libextractor to load various keyword-extraction
- * plugins. Libraries can also be unloaded (removed from this list,
- * see EXTRACTOR_plugin_remove).
- */
-struct EXTRACTOR_PluginList
-{
-  /**
-   * This is a linked list.
-   */
-  struct EXTRACTOR_PluginList *next;
-
-  /**
-   * Pointer to the plugin (as returned by lt_dlopen).
-   */
-  void * libraryHandle;
-
-  /**
-   * Name of the library (i.e., 'libextractor_foo.so')
-   */
-  char *libname;
-
-  /**
-   * Name of the library (i.e., 'libextractor_foo.so')
-   */
-  char *short_libname;
-  
-  /**
-   * Pointer to the function used for meta data extraction.
-   */
-  EXTRACTOR_ExtractMethod extractMethod;
-
-  /**
-   * Options for the plugin.
-   */
-  char * plugin_options;
-
-  /**
-   * Special options for the plugin
-   * (as returned by the plugin's "options" method;
-   * typically NULL).
-   */
-  const char *specials;
-
-  /**
-   * Flags to control how the plugin is executed.
-   */
-  enum EXTRACTOR_Options flags;
-
-  /**
-   * Process ID of the child process for this plugin. 0 for 
-   * none.
-   */
-#ifndef WINDOWS
-  int cpid;
-#else
-  HANDLE hProcess;
-#endif
-
-  /**
-   * Pipe used to send information about shared memory segments to
-   * the child process.  NULL if not initialized.
-   */
-  FILE *cpipe_in;
-
-  /**
-   * Pipe used to read information about extracted meta data from
-   * the child process.  -1 if not initialized.
-   */
-  int cpipe_out;
-};
-
-
-/**
- * Remove a trailing '/bin' from in (if present).
- */
-static char * 
-cut_bin(char * in) {
-  size_t p;
-
-  if (in == NULL)
-    return NULL;
-  p = strlen(in);
-  if (p > 4) {
-    if ( (in[p-1] == '/') ||
-        (in[p-1] == '\\') )
-      in[--p] = '\0';
-    if (0 == strcmp(&in[p-3],
-                   "bin")) {
-      in[p-3] = '\0';
-      p -= 3;
-    }
-  }
-  return in;
-}
-
-#if LINUX
-/**
- * Try to determine path by reading /proc/PID/exe or
- * /proc/PID/maps.
- *
- * Note that this may fail if LE is installed in one directory
- * and the binary linking against it sits elsewhere.
- */
-static char *
-get_path_from_proc_exe() {
-  char fn[64];
-  char line[1024];
-  char dir[1024];
-  char * lnk;
-  char * ret;
-  char * lestr;
-  ssize_t size;
-  FILE * f;
-
-  snprintf(fn,
-          sizeof (fn),
-          "/proc/%u/maps",
-          getpid());
-  f = FOPEN(fn, "r");
-  if (f != NULL) {
-    while (NULL != fgets(line, 1024, f)) {
-      if ( (1 == sscanf(line,
-                       "%*x-%*x %*c%*c%*c%*c %*x %*2x:%*2x %*u%*[ ]%s",
-                       dir)) &&
-          (NULL != (lestr = strstr(dir,
-                                   "libextractor")) ) ) {
-       lestr[0] = '\0';
-       fclose(f);
-       return strdup(dir);
-      }
-    }
-    fclose(f);
-  }
-  snprintf(fn,
-          sizeof (fn),
-          "/proc/%u/exe",
-          getpid());
-  lnk = malloc(1029); /* 1024 + 5 for "lib/" catenation */
-  if (lnk == NULL)         
-    return NULL;
-  size = readlink(fn, lnk, 1023);
-  if ( (size <= 0) || (size >= 1024) ) {
-    free(lnk);
-    return NULL;
-  }
-  lnk[size] = '\0';
-  while ( (lnk[size] != '/') &&
-         (size > 0) )
-    size--;
-  if ( (size < 4) ||
-       (lnk[size-4] != '/') ) {
-    /* not installed in "/bin/" -- binary path probably useless */
-    free(lnk);
-    return NULL;
-  }
-  lnk[size] = '\0';
-  lnk = cut_bin(lnk);
-  ret = realloc(lnk, strlen(lnk) + 5);
-  if (ret == NULL)
-    {
-      free (lnk);
-      return NULL;
-    }
-  strcat(ret, "lib/"); /* guess "lib/" as the library dir */
-  return ret;
-}
-#endif
-
-#if WINDOWS
-/**
- * Try to determine path with win32-specific function
- */
-static char * 
-get_path_from_module_filename() {
-  char * path;
-  char * ret;
-  char * idx;
-
-  path = malloc(4103); /* 4096+nil+6 for "/lib/" catenation */
-  if (path == NULL)
-    return NULL;
-  GetModuleFileName(NULL, path, 4096);
-  idx = path + strlen(path);
-  while ( (idx > path) &&
-         (*idx != '\\') &&
-         (*idx != '/') )
-    idx--;
-  *idx = '\0';
-  path = cut_bin(path);
-  ret = realloc(path, strlen(path) + 6);
-  if (ret == NULL)
-    {
-      free (path);
-      return NULL;
-    }
-  strcat(ret, "/lib/"); /* guess "lib/" as the library dir */
-  return ret;
-}
-#endif
-
-#if DARWIN
-static char * get_path_from_dyld_image() {
-  const char * path;
-  char * p, * s;
-  int i;
-  int c;
-
-  p = NULL;
-  c = _dyld_image_count();
-  for (i = 0; i < c; i++) {
-    if (_dyld_get_image_header(i) == &_mh_dylib_header) {
-      path = _dyld_get_image_name(i);
-      if (path != NULL && strlen(path) > 0) {
-        p = strdup(path);
-       if (p == NULL)
-         return NULL;
-        s = p + strlen(p);
-        while ( (s > p) && (*s != '/') )
-          s--;
-        s++;
-        *s = '\0';
-      }
-      break;
-    }
-  }
-  return p;
-}
-#endif
-
-/**
- * This may also fail -- for example, if extract
- * is not also installed.
- */
-static char *
-get_path_from_PATH() {
-  struct stat sbuf;
-  char * path;
-  char * pos;
-  char * end;
-  char * buf;
-  char * ret;
-  const char * p;
-
-  p = getenv("PATH");
-  if (p == NULL)
-    return NULL;
-  path = strdup(p); /* because we write on it */
-  if (path == NULL)
-    return NULL;
-  buf = malloc(strlen(path) + 20);
-  if (buf == NULL)
-    {
-      free (path);
-      return NULL;
-    }
-  pos = path;
-
-  while (NULL != (end = strchr(pos, ':'))) {
-    *end = '\0';
-    sprintf(buf, "%s/%s", pos, "extract");
-    if (0 == stat(buf, &sbuf)) {
-      pos = strdup(pos);
-      free(buf);
-      free(path);
-      if (pos == NULL)
-       return NULL;
-      pos = cut_bin(pos);
-      ret = realloc(pos, strlen(pos) + 5);
-      if (ret == NULL)
-       {
-         free (pos);
-         return NULL;
-       }
-      strcat(ret, "lib/");
-      return ret;
-    }
-    pos = end + 1;
-  }
-  sprintf(buf, "%s/%s", pos, "extract");
-  if (0 == stat(buf, &sbuf)) {
-    pos = strdup(pos);
-    free(buf);
-    free(path);
-    if (pos == NULL)
-      return NULL;
-    pos = cut_bin(pos);
-    ret = realloc(pos, strlen(pos) + 5);
-    if (ret == NULL)
-      {
-       free (pos);
-       return NULL;
-      }
-    strcat(ret, "lib/");
-    return ret;
-  }
-  free(buf);
-  free(path);
-  return NULL;
-}
-
-
-/**
- * Function to call on paths.
- * 
- * @param cls closure
- * @param path a directory path
- */
-typedef void (*PathProcessor)(void *cls,
-                             const char *path);
-
-
-/**
- * Create a filename by appending 'fname' to 'path'.
- *
- * @param path the base path 
- * @param fname the filename to append
- * @return '$path/$fname'
- */
-static char *
-append_to_dir (const char *path,
-              const char *fname)
-{
-  char *ret;
-  size_t slen;
-
-  slen = strlen (path);
-  if (slen == 0)
-    return NULL;
-  if (fname[0] == DIR_SEPARATOR)
-    fname++;
-  ret = malloc (slen + strlen(fname) + 2);
-  if (ret == NULL)
-    return NULL;
-#ifdef MINGW
-  if (path[slen-1] == '\\')
-    sprintf (ret,
-            "%s%s",
-            path, 
-            fname);
-  else
-    sprintf (ret,
-            "%s\\%s",
-            path, 
-            fname);
-#else
-  if (path[slen-1] == '/')
-    sprintf (ret,
-          "%s%s",
-          path, 
-          fname);
-  else
-    sprintf (ret,
-          "%s/%s",
-          path, 
-          fname);
-#endif
-  return ret;
-}
-
-
-/**
- * Iterate over all paths where we expect to find GNU libextractor
- * plugins.
- *
- * @param pp function to call for each path
- * @param pp_cls cls argument for pp.
- */
-static void
-get_installation_paths (PathProcessor pp,
-                       void *pp_cls)
-{
-  const char *p;
-  char * path;
-  char * prefix;
-  char * d;
-
-  prefix = NULL;
-  p = getenv("LIBEXTRACTOR_PREFIX");
-  if (p != NULL)
-    {
-      d = strdup (p);
-      if (d == NULL)
-       return;
-      prefix = strtok (d, PATH_SEPARATOR_STR);
-      while (NULL != prefix)
-       {
-         pp (pp_cls, prefix);
-         prefix = strtok (NULL, PATH_SEPARATOR_STR);
-       }
-      free (d);
-      return;
-    }
-#if LINUX
-  if (prefix == NULL)
-    prefix = get_path_from_proc_exe();
-#endif
-#if WINDOWS
-  if (prefix == NULL)
-    prefix = get_path_from_module_filename();
-#endif
-#if DARWIN
-  if (prefix == NULL)
-    prefix = get_path_from_dyld_image();
-#endif
-  if (prefix == NULL)
-    prefix = get_path_from_PATH();
-  pp (pp_cls, PLUGININSTDIR);
-  if (prefix == NULL)
-    return;
-  path = append_to_dir (prefix, PLUGINDIR);
-  if (path != NULL)
-    {
-      if (0 != strcmp (path,
-                      PLUGININSTDIR))
-       pp (pp_cls, path);
-      free (path);
-    }
-  free (prefix);
-}
-
-
-struct SearchContext
-{
-  const char *short_name;
-  char *path;
-};
-
-
-/**
- * Load all plugins from the given directory.
- * 
- * @param cls pointer to the "struct EXTRACTOR_PluginList*" to extend
- * @param path path to a directory with plugins
- */
-static void
-find_plugin_in_path (void *cls,
-                    const char *path)
-{
-  struct SearchContext *sc = cls;
-  DIR *dir;
-  struct dirent *ent;
-  const char *la;
-  const char *sym_name;
-  char *sym;
-  char *dot;
-
-  if (sc->path != NULL)
-    return;
-  dir = OPENDIR (path);
-  if (NULL == dir)
-    return;
-  while (NULL != (ent = READDIR (dir)))
-    {
-      if (ent->d_name[0] == '.')
-       continue;
-      if ( (NULL != (la = strstr (ent->d_name, ".la"))) &&
-          (la[3] == '\0') )
-       continue; /* only load '.so' and '.dll' */
-      sym_name = strstr (ent->d_name, "_");
-      if (sym_name == NULL)
-       continue;       
-      sym_name++;
-      sym = strdup (sym_name);
-      if (sym == NULL)
-       {
-         CLOSEDIR (dir);
-         return;
-       }
-      dot = strstr (sym, ".");
-      if (dot != NULL)
-       *dot = '\0';
-      if (0 == strcmp (sym, sc->short_name))
-       {
-         sc->path = append_to_dir (path, ent->d_name);
-         free (sym);
-         break;
-       }
-      free (sym);
-    }
-#if DEBUG
-  if (sc->path == NULL)
-    fprintf (stderr,
-            "Failed to find plugin `%s' in `%s'\n",
-            sc->short_name,
-            path);
-#endif
-  CLOSEDIR (dir);
-}
-
-
-
-/**
- * Given a short name of a library (i.e. "mime"), find
- * the full path of the respective plugin.
- */
-static char *
-find_plugin (const char *short_name)
-{
-  struct SearchContext sc;
-  
-  sc.path = NULL;
-  sc.short_name = short_name;
-  get_installation_paths (&find_plugin_in_path,
-                         &sc);
-  return sc.path;
-}
-
-
-
-struct DefaultLoaderContext
-{
-  struct EXTRACTOR_PluginList *res;
-  enum EXTRACTOR_Options flags;
-};
-
-
-/**
- * Load all plugins from the given directory.
- * 
- * @param cls pointer to the "struct EXTRACTOR_PluginList*" to extend
- * @param path path to a directory with plugins
- */
-static void
-load_plugins_from_dir (void *cls,
-                      const char *path)
-{
-  struct DefaultLoaderContext *dlc = cls;
-  DIR *dir;
-  struct dirent *ent;
-  const char *la;
-  const char *sym_name;
-  char *sym;
-  char *dot;
-
-  dir = opendir (path);
-  if (NULL == dir)
-    return;
-  while (NULL != (ent = readdir (dir)))
-    {
-      if (ent->d_name[0] == '.')
-       continue;
-      if ( ( (NULL != (la = strstr (ent->d_name, ".la"))) &&
-            (la[3] == '\0') ) ||
-          ( (NULL != (la = strstr (ent->d_name, ".a"))) &&
-            (la[2] == '\0')) )
-       continue; /* only load '.so' and '.dll' */
-
-      sym_name = strstr (ent->d_name, "_");
-      if (sym_name == NULL)
-       continue;
-      sym_name++;
-      sym = strdup (sym_name);
-      if (NULL == sym)
-       {
-         closedir (dir);
-         return;
-       }
-      dot = strstr (sym, ".");
-      if (dot != NULL)
-       *dot = '\0';
-#if DEBUG > 1
-      fprintf (stderr,
-              "Adding default plugin `%s'\n",
-              sym);
-#endif
-      dlc->res = EXTRACTOR_plugin_add (dlc->res,
-                                      sym,
-                                      NULL,
-                                      dlc->flags);
-      free (sym);
-    }
-  closedir (dir);
-}
-
-
-/**
- * Load the default set of plugins. The default can be changed
- * by setting the LIBEXTRACTOR_LIBRARIES environment variable.
- * If it is set to "env", then this function will return
- * EXTRACTOR_plugin_add_config (NULL, env, flags).  Otherwise,
- * it will load all of the installed plugins and return them.
- *
- * @param flags options for all of the plugins loaded
- * @return the default set of plugins, NULL if no plugins were found
- */
-struct EXTRACTOR_PluginList * 
-EXTRACTOR_plugin_add_defaults(enum EXTRACTOR_Options flags)
-{
-  struct DefaultLoaderContext dlc;
-  char *env;
-
-  env = getenv ("LIBEXTRACTOR_LIBRARIES");
-  if (env != NULL)
-    return EXTRACTOR_plugin_add_config (NULL, env, flags);
-  dlc.res = NULL;
-  dlc.flags = flags;
-  get_installation_paths (&load_plugins_from_dir,
-                         &dlc);
-  return dlc.res;
-}
-
-
-/**
- * Try to resolve a plugin function.
- *
- * @param lib_handle library to search for the symbol
- * @param prefix prefix to add
- * @param sym_name base name for the symbol
- * @param options set to special options requested by the plugin
- * @return NULL on error, otherwise pointer to the symbol
- */
-static void *
-get_symbol_with_prefix(void *lib_handle,
-                      const char *template,
-                      const char *prefix,
-                      const char **options)
-{
-  char *name;
-  void *symbol;
-  const char *sym_name;
-  char *sym;
-  char *dot;
-  const char *(*opt_fun)(void);
-
-  if (NULL != options) *options = NULL;
-  sym_name = strstr (prefix, "_");
-  if (sym_name == NULL)
-    return NULL;
-  sym_name++;
-  sym = strdup (sym_name);
-  if (sym == NULL)
-    return NULL;
-  dot = strstr (sym, ".");
-  if (dot != NULL)
-    *dot = '\0';
-  name = malloc(strlen(sym) + strlen(template) + 1);
-  if (name == NULL)
-    {
-      free (sym);
-      return NULL;
-    }
-  sprintf(name,
-         template,
-         sym);
-  /* try without '_' first */
-  symbol = lt_dlsym(lib_handle, name + 1);
-  if (symbol==NULL) 
-    {
-      /* now try with the '_' */
-#if DEBUG
-      char *first_error = strdup (lt_dlerror());
-#endif
-      symbol = lt_dlsym(lib_handle, name);
-#if DEBUG
-      if (NULL == symbol)
-       {
-         fprintf(stderr,
-                 "Resolving symbol `%s' failed, "
-                 "so I tried `%s', but that failed also.  Errors are: "
-                 "`%s' and `%s'.\n",
-                 name+1,
-                 name,
-                 first_error == NULL ? "out of memory" : first_error,
-                 lt_dlerror());
-       }
-      if (first_error != NULL)
-       free(first_error);
-#endif
-    }
-
-  if ( (symbol != NULL) &&
-       (NULL != options) )
-    {
-      /* get special options */
-      sprintf(name,
-             "_EXTRACTOR_%s_options",
-             sym);
-      /* try without '_' first */
-      opt_fun = lt_dlsym(lib_handle, name + 1);
-      if (opt_fun == NULL) 
-       opt_fun = lt_dlsym(lib_handle, name);
-      if (opt_fun != NULL)     
-       *options = opt_fun ();
-    }
-  free (sym);
-  free(name);
-
-  return symbol;
-}
-
-
-/**
- * Load a plugin.
- *
- * @param plugin plugin to load
- * @return 0 on success, -1 on error
- */
-static int
-plugin_load (struct EXTRACTOR_PluginList *plugin)
-{
-#if WINDOWS
-  wchar_t wlibname[4097];
-  char llibname[4097];
-#endif
-  lt_dladvise advise;
-
-  if (plugin->libname == NULL)
-    plugin->libname = find_plugin (plugin->short_libname);
-  if (plugin->libname == NULL)
-    {
-#if DEBUG
-      fprintf (stderr,
-              "Failed to find plugin `%s'\n",
-              plugin->short_libname);
-#endif
-      plugin->flags = EXTRACTOR_OPTION_DISABLED;
-      return -1;
-    }
-  lt_dladvise_init (&advise);
-  lt_dladvise_ext (&advise);
-  lt_dladvise_local (&advise);
-#if WINDOWS
-  wlibname[0] = L'\0';
-  llibname[0] = '\0';
-  if (MultiByteToWideChar (CP_UTF8, 0, plugin->libname, -1, wlibname, 4097) <= 0
-      || WideCharToMultiByte (CP_ACP, 0, wlibname, -1, llibname, 4097, NULL, 
NULL) < 0)
-  {
-#if DEBUG
-      fprintf (stderr,
-              "Loading `%s' plugin failed: %s\n",
-              plugin->short_libname,
-              "can't convert plugin name to local encoding");
-      free (plugin->libname);
-      plugin->libname = NULL;
-      plugin->flags = EXTRACTOR_OPTION_DISABLED;
-      return -1;
-#endif
-  }
-  plugin->libraryHandle = lt_dlopenadvise (llibname,
-                                      advise);
-#else
-  plugin->libraryHandle = lt_dlopenadvise (plugin->libname, 
-                                      advise);
-#endif
-  lt_dladvise_destroy(&advise);
-  if (plugin->libraryHandle == NULL)
-    {
-#if DEBUG
-      fprintf (stderr,
-              "Loading `%s' plugin failed: %s\n",
-              plugin->short_libname,
-              lt_dlerror ());
-#endif
-      free (plugin->libname);
-      plugin->libname = NULL;
-      plugin->flags = EXTRACTOR_OPTION_DISABLED;
-      return -1;
-    }
-  plugin->extractMethod = get_symbol_with_prefix (plugin->libraryHandle,
-                                                 "_EXTRACTOR_%s_extract",
-                                                 plugin->libname,
-                                                 &plugin->specials);
-  if (plugin->extractMethod == NULL) 
-    {
-#if DEBUG
-      fprintf (stderr,
-              "Resolving `extract' method of plugin `%s' failed: %s\n",
-              plugin->short_libname,
-              lt_dlerror ());
-#endif
-      lt_dlclose (plugin->libraryHandle);
-      free (plugin->libname);
-      plugin->libname = NULL;
-      plugin->flags = EXTRACTOR_OPTION_DISABLED;
-      return -1;
-    }
-  return 0;
-}
-
-
-
-
-/**
- * Add a library for keyword extraction.
- *
- * @param prev the previous list of libraries, may be NULL
- * @param library the name of the library
- * @param flags options to use
- * @return the new list of libraries, equal to prev iff an error occured
- */
-struct EXTRACTOR_PluginList *
-EXTRACTOR_plugin_add (struct EXTRACTOR_PluginList * prev,
-                     const char *library,
-                     const char *options,
-                     enum EXTRACTOR_Options flags)
-{
-  struct EXTRACTOR_PluginList *result;
-  char *libname;
-
-  libname = find_plugin (library);
-  if (libname == NULL)
-    {
-      fprintf (stderr,
-              "Could not load `%s'\n",
-              library);
-      return prev;
-    }
-  result = calloc (1, sizeof (struct EXTRACTOR_PluginList));
-  if (result == NULL)
-    return prev;
-  result->next = prev;
-  result->short_libname = strdup (library);
-  if (result->short_libname == NULL)
-    {
-      free (result);
-      return NULL;
-    }
-  result->libname = libname;
-  result->flags = flags;
-  if (NULL != options)
-    result->plugin_options = strdup (options);
-  else
-    result->plugin_options = NULL;
-  return result;
-}
-
-
-/**
- * Load multiple libraries as specified by the user.
- *
- * @param config a string given by the user that defines which
- *        libraries should be loaded. Has the format
- *        "[[-]LIBRARYNAME[(options)][:[-]LIBRARYNAME[(options)]]]*".
- *        For example, 'mp3:ogg.so' loads the
- *        mp3 and the ogg library. The '-' before the LIBRARYNAME
- *        indicates that the library should be removed from
- *        the library list.
- * @param prev the  previous list of libraries, may be NULL
- * @param flags options to use
- * @return the new list of libraries, equal to prev iff an error occured
- *         or if config was empty (or NULL).
- */
-struct EXTRACTOR_PluginList *
-EXTRACTOR_plugin_add_config (struct EXTRACTOR_PluginList * prev,
-                            const char *config,
-                            enum EXTRACTOR_Options flags)
-{
-  char *cpy;
-  size_t pos;
-  size_t last;
-  ssize_t lastconf;
-  size_t len;
-
-  if (config == NULL)
-    return prev;
-  len = strlen(config);
-  cpy = strdup(config);
-  if (cpy == NULL)
-    return prev;
-  pos = 0;
-  last = 0;
-  lastconf = 0;
-  while (pos < len)
-    {
-      while ((cpy[pos] != ':') && (cpy[pos] != '\0') &&
-            (cpy[pos] != '('))
-       pos++;
-      if( cpy[pos] == '(' ) {
-       cpy[pos++] = '\0';      /* replace '(' by termination */
-       lastconf = pos;         /* start config from here, after (. */
-       while ((cpy[pos] != '\0') && (cpy[pos] != ')'))
-         pos++; /* config until ) or EOS. */
-       if( cpy[pos] == ')' ) {
-         cpy[pos++] = '\0'; /* write end of config here. */
-         while ((cpy[pos] != ':') && (cpy[pos] != '\0'))
-           pos++; /* forward until real end of string found. */
-         cpy[pos++] = '\0';
-       } else {
-         cpy[pos++] = '\0'; /* end of string. */
-       }
-      } else {
-       lastconf = -1;         /* NULL config when no (). */
-       cpy[pos++] = '\0';      /* replace ':' by termination */
-      }
-      if (cpy[last] == '-')
-       {
-         last++;
-         prev = EXTRACTOR_plugin_remove (prev, 
-                                         &cpy[last]);
-       }
-      else
-       {
-         prev = EXTRACTOR_plugin_add (prev, 
-                                      &cpy[last], 
-                                      (lastconf != -1) ? &cpy[lastconf] : NULL,
-                                      flags);
-       }
-      last = pos;
-    }
-  free (cpy);
-  return prev;
-}
-
-
-/**
  * Stop the child process of this plugin.
  */
 static void