text: /*
   * %CopyrightBegin%
   * 
   * Copyright Ericsson AB 1998-2009. All Rights Reserved.
   * 
   * The contents of this file are subject to the Erlang Public License,
   * Version 1.1, (the "License"); you may not use this file except in
   * compliance with the License. You should have received a copy of the
   * Erlang Public License along with this software. If not, it can be
   * retrieved online at http://www.erlang.org/.
   * 
   * Software distributed under the License is distributed on an "AS IS"
   * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
   * the License for the specific language governing rights and limitations
   * under the License.
   * 
   * %CopyrightEnd%
   *
  
   */
  #ifdef VXWORKS
  #include <vxWorks.h>
  #endif
  
  #include <stdarg.h>
  #include "reg.h"
  
  /* this is the general "get" function. Values are copied into a buffer
   * provided by the caller, and the return value indicates success or
   * failure. This function can get all types except directorys. The user
   * must specify the type of data he is expecting, or 0 if he doesn't
   * care. On success, the data type is returned. If the requested data
   * type does not match the data found, EI_TYPE is returned. 
   */
  int ei_reg_getval(ei_reg *reg, const char *key, int flags, ...)
  {
    ei_hash *tab;
    ei_reg_obj *obj=NULL;
    va_list ap;
    int rval;
    int objtype;
    
    if (!key || !reg) return -1; /* return EI_BADARG; */
    tab = reg->tab;
    if (!(obj=ei_hash_lookup(tab,key))) return -1; /* return EI_NOTFOUND; */
    if (obj->attr & EI_DELET) return -1; /* return EI_NOTFOUND; */
  
    /* if type was specified then it must match object */
    objtype = ei_reg_typeof(obj);
    if (flags && (flags != objtype)) return -1; /* return EI_TYPE; */
  
    va_start(ap,flags);
  
    switch ((rval = objtype)) {
    case EI_INT: {
      long *ip;
  
      if (!(ip = va_arg(ap,long*))) rval = -1; /* EI_BADARG; */
      else *ip = obj->val.i;
      break;
    }
    case EI_FLT: {
      double *fp;
  
      if (!(fp = va_arg(ap,double*))) rval = -1; /*  EI_BADARG; */
      else *fp = obj->val.f;
      break;
    }
    case EI_STR: {
      char **sp;
  
      if (!(sp = va_arg(ap,char**))) rval = -1; /* EI_BADARG; */
      else *sp = obj->val.s;
      break;
    }
    case EI_BIN: {
      void **pp;
      int *size;
  
      if (!(pp = va_arg(ap,void**))) rval = -1; /* EI_BADARG; */
      else *pp = obj->val.p;
      if ((size=va_arg(ap,int*))) *size=obj->size;
      break;
    }
    default:
      /* can't (should never) happen */
      rval = -1;
      /* rval = EI_UNKNOWN; */
    }
  
    /* clean up & return */
    va_end(ap);
    return rval;
  }
  