crypto/dso/dso_beos.c

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