openssl/crypto/dso/dso_err.c
Geoff Thorpe 51c8dc37dd This changes the behaviour of the DSO mechanism for determining an
appropriate filename translation on the host system. Apart from this point,
users should also note that there's a slight change in the API functions
too. The DSO now contains its own to-be-converted filename
("dso->filename"), and at the time the DSO loads the "dso->loaded_filename"
value is set to the translated form. As such, this also provides an impicit
way of determining if the DSO is currently loaded or not. Except, perhaps,
VMS .... :-)

The various DSO_METHODs have been updated for this mechanism except VMS
which is deliberately broken for now, Richard is going to look at how to
fit it in (the source comments in there explain "the issue").

Basically, the new callback scheme allows the filename conversion to
(a) be turned off altogether through the use of the
    DSO_FLAG_NO_NAME_TRANSLATION flag,
(b) be handled in the default way using the default DSO_METHOD's converter
(c) overriden per-DSO by setting the override callback
(d) a mix of (b) and (c) - eg. implement an override callback that;
    (i) checks if we're win32 "if(strstr(dso->meth->name, "win32"))..."
        and if so, convert "blah" into "blah32.dll" (the default is
	otherwise to make it "blah.dll").
    (ii) default to the normal behaviour - eg. we're not on win32, so
         finish with (return dso->meth->dso_name_converter(dso,NULL)).
(e) be retried a number of times by writing a new DSO_METHOD where the
    "dso_load()" handler will call the converter repeatedly. Then the
    custom converter could use state information in the DSO to suggest
    different conversions or paths each time it is invoked.
2000-10-26 17:38:59 +00:00

136 lines
5.7 KiB
C

/* crypto/dso/dso_err.c */
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. 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.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* NOTE: this file was auto generated by the mkerr.pl script: any changes
* made to it will be overwritten when the script next updates this file,
* only reason strings will be preserved.
*/
#include <stdio.h>
#include <openssl/err.h>
#include <openssl/dso.h>
/* BEGIN ERROR CODES */
#ifndef NO_ERR
static ERR_STRING_DATA DSO_str_functs[]=
{
{ERR_PACK(0,DSO_F_DLFCN_BIND_FUNC,0), "DLFCN_BIND_FUNC"},
{ERR_PACK(0,DSO_F_DLFCN_BIND_VAR,0), "DLFCN_BIND_VAR"},
{ERR_PACK(0,DSO_F_DLFCN_LOAD,0), "DLFCN_LOAD"},
{ERR_PACK(0,DSO_F_DLFCN_NAME_CONVERTER,0), "DLFCN_NAME_CONVERTER"},
{ERR_PACK(0,DSO_F_DLFCN_UNLOAD,0), "DLFCN_UNLOAD"},
{ERR_PACK(0,DSO_F_DL_BIND_FUNC,0), "DL_BIND_FUNC"},
{ERR_PACK(0,DSO_F_DL_BIND_VAR,0), "DL_BIND_VAR"},
{ERR_PACK(0,DSO_F_DL_LOAD,0), "DL_LOAD"},
{ERR_PACK(0,DSO_F_DL_NAME_CONVERTER,0), "DL_NAME_CONVERTER"},
{ERR_PACK(0,DSO_F_DL_UNLOAD,0), "DL_UNLOAD"},
{ERR_PACK(0,DSO_F_DSO_BIND_FUNC,0), "DSO_bind_func"},
{ERR_PACK(0,DSO_F_DSO_BIND_VAR,0), "DSO_bind_var"},
{ERR_PACK(0,DSO_F_DSO_CONVERT_FILENAME,0), "DSO_convert_filename"},
{ERR_PACK(0,DSO_F_DSO_CTRL,0), "DSO_ctrl"},
{ERR_PACK(0,DSO_F_DSO_FREE,0), "DSO_free"},
{ERR_PACK(0,DSO_F_DSO_GET_FILENAME,0), "DSO_get_filename"},
{ERR_PACK(0,DSO_F_DSO_GET_LOADED_FILENAME,0), "DSO_get_loaded_filename"},
{ERR_PACK(0,DSO_F_DSO_LOAD,0), "DSO_load"},
{ERR_PACK(0,DSO_F_DSO_NEW_METHOD,0), "DSO_new_method"},
{ERR_PACK(0,DSO_F_DSO_SET_FILENAME,0), "DSO_set_filename"},
{ERR_PACK(0,DSO_F_DSO_SET_NAME_CONVERTER,0), "DSO_set_name_converter"},
{ERR_PACK(0,DSO_F_DSO_UP,0), "DSO_up"},
{ERR_PACK(0,DSO_F_VMS_BIND_VAR,0), "VMS_BIND_VAR"},
{ERR_PACK(0,DSO_F_VMS_LOAD,0), "VMS_LOAD"},
{ERR_PACK(0,DSO_F_VMS_UNLOAD,0), "VMS_UNLOAD"},
{ERR_PACK(0,DSO_F_WIN32_BIND_FUNC,0), "WIN32_BIND_FUNC"},
{ERR_PACK(0,DSO_F_WIN32_BIND_VAR,0), "WIN32_BIND_VAR"},
{ERR_PACK(0,DSO_F_WIN32_LOAD,0), "WIN32_LOAD"},
{ERR_PACK(0,DSO_F_WIN32_NAME_CONVERTER,0), "WIN32_NAME_CONVERTER"},
{ERR_PACK(0,DSO_F_WIN32_UNLOAD,0), "WIN32_UNLOAD"},
{0,NULL}
};
static ERR_STRING_DATA DSO_str_reasons[]=
{
{DSO_R_CTRL_FAILED ,"control command failed"},
{DSO_R_DSO_ALREADY_LOADED ,"dso already loaded"},
{DSO_R_FILENAME_TOO_BIG ,"filename too big"},
{DSO_R_FINISH_FAILED ,"cleanup method function failed"},
{DSO_R_LOAD_FAILED ,"could not load the shared library"},
{DSO_R_NAME_TRANSLATION_FAILED ,"name translation failed"},
{DSO_R_NO_FILENAME ,"no filename"},
{DSO_R_NULL_HANDLE ,"a null shared library handle was used"},
{DSO_R_SET_FILENAME_FAILED ,"set filename failed"},
{DSO_R_STACK_ERROR ,"the meth_data stack is corrupt"},
{DSO_R_SYM_FAILURE ,"could not bind to the requested symbol name"},
{DSO_R_UNLOAD_FAILED ,"could not unload the shared library"},
{DSO_R_UNSUPPORTED ,"functionality not supported"},
{0,NULL}
};
#endif
void ERR_load_DSO_strings(void)
{
static int init=1;
if (init)
{
init=0;
#ifndef NO_ERR
ERR_load_strings(ERR_LIB_DSO,DSO_str_functs);
ERR_load_strings(ERR_LIB_DSO,DSO_str_reasons);
#endif
}
}