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/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
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/* ====================================================================
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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* 6. Redistributions of any form whatsoever must retain the following
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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/* These values are used as commands to DSO_ctrl() */
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#define DSO_CTRL_GET_FLAGS 1
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#define DSO_CTRL_SET_FLAGS 2
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#define DSO_CTRL_OR_FLAGS 3
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/* These flags control the translation of file-names from canonical to
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* native. Eg. in the CryptoSwift support, the "dl" and "dlfcn"
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* methods will translate "swift" -> "libswift.so" whereas the "win32"
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* method will translate "swift" -> "swift.dll". NB: Until I can figure
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* out how to be more "conventional" with this, the methods will only
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* honour this flag if it looks like it was passed a file without any
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* path and if the filename is small enough.
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#define DSO_FLAG_NAME_TRANSLATION 0x01
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/* The following flag controls the translation of symbol names to upper
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* case. This is currently only being implemented for OpenVMS.
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#define DSO_FLAG_UPCASE_SYMBOL 0x02
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typedef void (*DSO_FUNC_TYPE)(void);
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typedef struct dso_st DSO;
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typedef struct dso_meth_st
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/* Loads a shared library */
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int (*dso_load)(DSO *dso, const char *filename);
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/* Unloads a shared library */
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int (*dso_unload)(DSO *dso);
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/* Binds a variable */
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void *(*dso_bind_var)(DSO *dso, const char *symname);
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/* Binds a function - assumes a return type of DSO_FUNC_TYPE.
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* This should be cast to the real function prototype by the
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* caller. Platforms that don't have compatible representations
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* for different prototypes (this is possible within ANSI C)
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* are highly unlikely to have shared libraries at all, let
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* alone a DSO_METHOD implemented for them. */
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DSO_FUNC_TYPE (*dso_bind_func)(DSO *dso, const char *symname);
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/* I don't think this would actually be used in any circumstances. */
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/* Unbinds a variable */
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int (*dso_unbind_var)(DSO *dso, char *symname, void *symptr);
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/* Unbinds a function */
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int (*dso_unbind_func)(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
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/* The generic (yuck) "ctrl()" function. NB: Negative return
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* values (rather than zero) indicate errors. */
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long (*dso_ctrl)(DSO *dso, int cmd, long larg, void *parg);
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/* [De]Initialisation handlers. */
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int (*init)(DSO *dso);
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int (*finish)(DSO *dso);
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/**********************************************************************/
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/* The low-level handle type used to refer to a loaded shared library */
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/* Standard dlopen uses a (void *). Win32 uses a HANDLE. VMS
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* doesn't use anything but will need to cache the filename
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* for use in the dso_bind handler. All in all, let each
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* method control its own destiny. "Handles" and such go in
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/* For use by applications etc ... use this for your bits'n'pieces,
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* don't touch meth_data! */
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CRYPTO_EX_DATA ex_data;
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DSO * DSO_new_method(DSO_METHOD *method);
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int DSO_free(DSO *dso);
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int DSO_flags(DSO *dso);
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int DSO_up(DSO *dso);
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long DSO_ctrl(DSO *dso, int cmd, long larg, void *parg);
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void DSO_set_default_method(DSO_METHOD *meth);
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DSO_METHOD *DSO_get_default_method(void);
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DSO_METHOD *DSO_get_method(DSO *dso);
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DSO_METHOD *DSO_set_method(DSO *dso, DSO_METHOD *meth);
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/* The all-singing all-dancing load function, you normally pass NULL
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* for the first and third parameters. Use DSO_up and DSO_free for
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* subsequent reference count handling. Any flags passed in will be set
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* in the constructed DSO after its init() function but before the
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* load operation. This will be done with;
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* DSO_ctrl(dso, DSO_CTRL_SET_FLAGS, flags, NULL); */
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DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags);
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/* This function binds to a variable inside a shared library. */
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void *DSO_bind_var(DSO *dso, const char *symname);
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/* This function binds to a function inside a shared library. */
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DSO_FUNC_TYPE DSO_bind_func(DSO *dso, const char *symname);
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/* This method is the default, but will beg, borrow, or steal whatever
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* method should be the default on any particular platform (including
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* DSO_METH_null() if necessary). */
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DSO_METHOD *DSO_METHOD_openssl(void);
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/* This method is defined for all platforms - if a platform has no
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* DSO support then this will be the only method! */
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DSO_METHOD *DSO_METHOD_null(void);
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/* If DSO_DLFCN is defined, the standard dlfcn.h-style functions
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* (dlopen, dlclose, dlsym, etc) will be used and incorporated into
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* this method. If not, this method will return NULL. */
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DSO_METHOD *DSO_METHOD_dlfcn(void);
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/* If DSO_DL is defined, the standard dl.h-style functions (shl_load,
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* shl_unload, shl_findsym, etc) will be used and incorporated into
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* this method. If not, this method will return NULL. */
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DSO_METHOD *DSO_METHOD_dl(void);
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/* If WIN32 is defined, use DLLs. If not, return NULL. */
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DSO_METHOD *DSO_METHOD_win32(void);
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/* If VMS is defined, use shared images. If not, return NULL. */
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DSO_METHOD *DSO_METHOD_vms(void);
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void ERR_load_DSO_strings(void);
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/* BEGIN ERROR CODES */
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/* The following lines are auto generated by the script mkerr.pl. Any changes
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* made after this point may be overwritten when the script is next run.
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/* Error codes for the DSO functions. */
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/* Function codes. */
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#define DSO_F_DLFCN_BIND_FUNC 100
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#define DSO_F_DLFCN_BIND_VAR 101
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#define DSO_F_DLFCN_CTRL 102
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#define DSO_F_DLFCN_LOAD 103
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#define DSO_F_DLFCN_UNLOAD 104
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#define DSO_F_DL_BIND_FUNC 105
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#define DSO_F_DL_BIND_VAR 106
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#define DSO_F_DL_CTRL 107
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#define DSO_F_DL_LOAD 108
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#define DSO_F_DL_UNLOAD 109
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#define DSO_F_DSO_BIND_FUNC 110
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#define DSO_F_DSO_BIND_VAR 111
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#define DSO_F_DSO_CTRL 112
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#define DSO_F_DSO_FREE 113
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#define DSO_F_DSO_LOAD 114
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#define DSO_F_DSO_NEW_METHOD 115
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#define DSO_F_DSO_UP 116
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#define DSO_F_VMS_BIND_VAR 122
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#define DSO_F_VMS_CTRL 123
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#define DSO_F_VMS_LOAD 124
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#define DSO_F_VMS_UNLOAD 125
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#define DSO_F_WIN32_BIND_FUNC 117
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#define DSO_F_WIN32_BIND_VAR 118
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#define DSO_F_WIN32_CTRL 119
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#define DSO_F_WIN32_LOAD 120
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#define DSO_F_WIN32_UNLOAD 121
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#define DSO_R_CTRL_FAILED 100
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#define DSO_R_FILENAME_TOO_BIG 109
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#define DSO_R_FINISH_FAILED 101
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#define DSO_R_LOAD_FAILED 102
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#define DSO_R_NULL_HANDLE 103
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#define DSO_R_STACK_ERROR 104
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#define DSO_R_SYM_FAILURE 105
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#define DSO_R_UNKNOWN_COMMAND 106
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#define DSO_R_UNLOAD_FAILED 107
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#define DSO_R_UNSUPPORTED 108
added
removed
src/openssl/dso.h
