release/src/router/openssl/crypto/dso/dso_beos.c

   1 /* dso_beos.c */
   2 /* Written by Marcin Konicki (ahwayakchih@neoni.net) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include <string.h>
  61 #include "cryptlib.h"
  62 #include <openssl/dso.h>
  63
  64 #if !defined(OPENSSL_SYS_BEOS)
  65 DSO_METHOD *DSO_METHOD_beos(void)
  66         {
  67         return NULL;
  68         }
  69 #else
  70
  71 #include <kernel/image.h>
  72
  73 static int beos_load(DSO *dso);
  74 static int beos_unload(DSO *dso);
  75 static void *beos_bind_var(DSO *dso, const char *symname);
  76 static DSO_FUNC_TYPE beos_bind_func(DSO *dso, const char *symname);
  77 #if 0
  78 static int beos_unbind_var(DSO *dso, char *symname, void *symptr);
  79 static int beos_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr);
  80 static int beos_init(DSO *dso);
  81 static int beos_finish(DSO *dso);
  82 static long beos_ctrl(DSO *dso, int cmd, long larg, void *parg);
  83 #endif
  84 static char *beos_name_converter(DSO *dso, const char *filename);
  85
  86 static DSO_METHOD dso_meth_beos = {
  87         "OpenSSL 'beos' shared library method",
  88         beos_load,
  89         beos_unload,
  90         beos_bind_var,
  91         beos_bind_func,
  92 /* For now, "unbind" doesn't exist */
  93 #if 0
  94         NULL, /* unbind_var */
  95         NULL, /* unbind_func */
  96 #endif
  97         NULL, /* ctrl */
  98         beos_name_converter,
  99         NULL, /* init */
 100         NULL  /* finish */
 101         };
 102
 103 DSO_METHOD *DSO_METHOD_beos(void)
 104         {
 105         return(&dso_meth_beos);
 106         }
 107
 108 /* For this DSO_METHOD, our meth_data STACK will contain;
 109  * (i) a pointer to the handle (image_id) returned from
 110  *     load_add_on().
 111  */
 112
 113 static int beos_load(DSO *dso)
 114         {
 115         image_id id;
 116         /* See applicable comments from dso_dl.c */
 117         char *filename = DSO_convert_filename(dso, NULL);
 118
 119         if(filename == NULL)
 120                 {
 121                 DSOerr(DSO_F_BEOS_LOAD,DSO_R_NO_FILENAME);
 122                 goto err;
 123                 }
 124         id = load_add_on(filename);
 125         if(id < 1)
 126                 {
 127                 DSOerr(DSO_F_BEOS_LOAD,DSO_R_LOAD_FAILED);
 128                 ERR_add_error_data(3, "filename(", filename, ")");
 129                 goto err;
 130                 }
 131         if(!sk_push(dso->meth_data, (char *)id))
 132                 {
 133                 DSOerr(DSO_F_BEOS_LOAD,DSO_R_STACK_ERROR);
 134                 goto err;
 135                 }
 136         /* Success */
 137         dso->loaded_filename = filename;
 138         return(1);
 139 err:
 140         /* Cleanup !*/
 141         if(filename != NULL)
 142                 OPENSSL_free(filename);
 143         if(id > 0)
 144                 unload_add_on(id);
 145         return(0);
 146         }
 147
 148 static int beos_unload(DSO *dso)
 149         {
 150         image_id id;
 151         if(dso == NULL)
 152                 {
 153                 DSOerr(DSO_F_BEOS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER);
 154                 return(0);
 155                 }
 156         if(sk_num(dso->meth_data) < 1)
 157                 return(1);
 158         id = (image_id)sk_pop(dso->meth_data);
 159         if(id < 1)
 160                 {
 161                 DSOerr(DSO_F_BEOS_UNLOAD,DSO_R_NULL_HANDLE);
 162                 return(0);
 163                 }
 164         if(unload_add_on(id) != B_OK)
 165                 {
 166                 DSOerr(DSO_F_BEOS_UNLOAD,DSO_R_UNLOAD_FAILED);
 167                 /* We should push the value back onto the stack in
 168                  * case of a retry. */
 169                 sk_push(dso->meth_data, (char *)id);
 170                 return(0);
 171                 }
 172         return(1);
 173         }
 174
 175 static void *beos_bind_var(DSO *dso, const char *symname)
 176         {
 177         image_id id;
 178         void *sym;
 179
 180         if((dso == NULL) || (symname == NULL))
 181                 {
 182                 DSOerr(DSO_F_BEOS_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
 183                 return(NULL);
 184                 }
 185         if(sk_num(dso->meth_data) < 1)
 186                 {
 187                 DSOerr(DSO_F_BEOS_BIND_VAR,DSO_R_STACK_ERROR);
 188                 return(NULL);
 189                 }
 190         id = (image_id)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
 191         if(id < 1)
 192                 {
 193                 DSOerr(DSO_F_BEOS_BIND_VAR,DSO_R_NULL_HANDLE);
 194                 return(NULL);
 195                 }
 196         if(get_image_symbol(id, symname, B_SYMBOL_TYPE_DATA, &sym) != B_OK)
 197                 {
 198                 DSOerr(DSO_F_BEOS_BIND_VAR,DSO_R_SYM_FAILURE);
 199                 ERR_add_error_data(3, "symname(", symname, ")");
 200                 return(NULL);
 201                 }
 202         return(sym);
 203         }
 204
 205 static DSO_FUNC_TYPE beos_bind_func(DSO *dso, const char *symname)
 206         {
 207         image_id id;
 208         void *sym;
 209
 210         if((dso == NULL) || (symname == NULL))
 211                 {
 212                 DSOerr(DSO_F_BEOS_BIND_FUNC,ERR_R_PASSED_NULL_PARAMETER);
 213                 return(NULL);
 214                 }
 215         if(sk_num(dso->meth_data) < 1)
 216                 {
 217                 DSOerr(DSO_F_BEOS_BIND_FUNC,DSO_R_STACK_ERROR);
 218                 return(NULL);
 219                 }
 220         id = (image_id)sk_value(dso->meth_data, sk_num(dso->meth_data) - 1);
 221         if(id < 1)
 222                 {
 223                 DSOerr(DSO_F_BEOS_BIND_FUNC,DSO_R_NULL_HANDLE);
 224                 return(NULL);
 225                 }
 226         if(get_image_symbol(id, symname, B_SYMBOL_TYPE_TEXT, &sym) != B_OK)
 227                 {
 228                 DSOerr(DSO_F_BEOS_BIND_FUNC,DSO_R_SYM_FAILURE);
 229                 ERR_add_error_data(3, "symname(", symname, ")");
 230                 return(NULL);
 231                 }
 232         return((DSO_FUNC_TYPE)sym);
 233         }
 234
 235 /* This one is the same as the one in dlfcn */
 236 static char *beos_name_converter(DSO *dso, const char *filename)
 237         {
 238         char *translated;
 239         int len, rsize, transform;
 240
 241         len = strlen(filename);
 242         rsize = len + 1;
 243         transform = (strstr(filename, "/") == NULL);
 244         if(transform)
 245                 {
 246                 /* We will convert this to "%s.so" or "lib%s.so" */
 247                 rsize += 3;     /* The length of ".so" */
 248                 if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0)
 249                         rsize += 3; /* The length of "lib" */
 250                 }
 251         translated = OPENSSL_malloc(rsize);
 252         if(translated == NULL)
 253                 {
 254                 DSOerr(DSO_F_BEOS_NAME_CONVERTER,
 255                                 DSO_R_NAME_TRANSLATION_FAILED);
 256                 return(NULL);
 257                 }
 258         if(transform)
 259                 {
 260                 if ((DSO_flags(dso) & DSO_FLAG_NAME_TRANSLATION_EXT_ONLY) == 0)
 261                         sprintf(translated, "lib%s.so", filename);
 262                 else
 263                         sprintf(translated, "%s.so", filename);
 264                 }
 265         else
 266                 sprintf(translated, "%s", filename);
 267         return(translated);
 268         }
 269
 270 #endif