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Diff for /elwix/files/csh/iconv_stub.c between versions 1.1 and 1.2

version 1.1, 2012/10/11 11:59:09 version 1.2, 2012/10/12 08:22:46
Line 0 Line 1
   /*-
    * Copyright (c) 2006 Hajimu UMEMOTO <ume@FreeBSD.org>
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions and the following disclaimer.
    * 2. Redistributions in binary form must reproduce the above copyright
    *    notice, this list of conditions and the following disclaimer in the
    *    documentation and/or other materials provided with the distribution.
    *
    * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
    * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    * SUCH DAMAGE.
    *
    * $FreeBSD: src/bin/csh/iconv_stub.c,v 1.2 2009/10/17 15:53:15 ume Exp $
    */
   
   #include <dlfcn.h>
   #include <stddef.h>
   
   #include "iconv.h"
   
   #undef iconv_open
   #undef iconv
   #undef iconv_close
   
   #define ICONVLIB        "libiconv.so"
   #define ICONV_ENGINE    "iconv"
   #define ICONV_OPEN      "iconv_open"
   #define ICONV_CLOSE     "iconv_close"
   
   typedef iconv_t iconv_open_t(const char *, const char *);
   
   dl_iconv_t *dl_iconv;
   dl_iconv_close_t *dl_iconv_close;
   
   static int initialized;
   static void *iconvlib;
   static iconv_open_t *iconv_open;
   
   iconv_t
   dl_iconv_open(const char *tocode, const char *fromcode)
   {
           if (initialized) {
                   if (iconvlib == NULL)
                           return (iconv_t)-1;
           } else {
                   initialized = 1;
                   iconvlib = dlopen(ICONVLIB, RTLD_LAZY | RTLD_GLOBAL);
                   if (iconvlib == NULL)
                           return (iconv_t)-1;
                   iconv_open = (iconv_open_t *)dlfunc(iconvlib, ICONV_OPEN);
                   if (iconv_open == NULL)
                           goto dlfunc_err;
                   dl_iconv = (dl_iconv_t *)dlfunc(iconvlib, ICONV_ENGINE);
                   if (dl_iconv == NULL)
                           goto dlfunc_err;
                   dl_iconv_close = (dl_iconv_close_t *)dlfunc(iconvlib,
                       ICONV_CLOSE);
                   if (dl_iconv_close == NULL)
                           goto dlfunc_err;
           }
           return iconv_open(tocode, fromcode);
   
   dlfunc_err:
           dlclose(iconvlib);
           iconvlib = NULL;
           return (iconv_t)-1;
   }
Removed from v.1.1  
changed lines
  Added in v.1.2

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