1 files changed, 306 insertions, 0 deletions

diff --git a/src/lib/libcrypto/dso/dso_lib.c b/src/lib/libcrypto/dso/dso_lib.c
new file mode 100644
index 0000000000..acd166697e
--- /dev/null
+++ b/src/lib/libcrypto/dso/dso_lib.c
@@ -0,0 +1,306 @@
+/* dso_lib.c */
+/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000 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
+ *    licensing@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).
+ *
+ */
+
+#include <stdio.h>
+#include <openssl/crypto.h>
+#include "cryptlib.h"
+#include <openssl/dso.h>
+
+static DSO_METHOD *default_DSO_meth = NULL;
+
+DSO *DSO_new(void)
+        {
+        return(DSO_new_method(NULL));
+        }
+
+void DSO_set_default_method(DSO_METHOD *meth)
+        {
+        default_DSO_meth = meth;
+        }
+
+DSO_METHOD *DSO_get_default_method(void)
+        {
+        return(default_DSO_meth);
+        }
+
+DSO_METHOD *DSO_get_method(DSO *dso)
+        {
+        return(dso->meth);
+        }
+
+DSO_METHOD *DSO_set_method(DSO *dso, DSO_METHOD *meth)
+        {
+        DSO_METHOD *mtmp;
+        mtmp = dso->meth;
+        dso->meth = meth;
+        return(mtmp);
+        }
+
+DSO *DSO_new_method(DSO_METHOD *meth)
+        {
+        DSO *ret;
+
+        if(default_DSO_meth == NULL)
+                /* We default to DSO_METH_openssl() which in turn defaults
+                 * to stealing the "best available" method. Will fallback
+                 * to DSO_METH_null() in the worst case. */
+                default_DSO_meth = DSO_METHOD_openssl();
+        ret = (DSO *)OPENSSL_malloc(sizeof(DSO));
+        if(ret == NULL)
+                {
+                DSOerr(DSO_F_DSO_NEW_METHOD,ERR_R_MALLOC_FAILURE);
+                return(NULL);
+                }
+        memset(ret, 0, sizeof(DSO));
+        ret->meth_data = sk_new_null();
+        if((ret->meth_data = sk_new_null()) == NULL)
+                {
+                /* sk_new doesn't generate any errors so we do */
+                DSOerr(DSO_F_DSO_NEW_METHOD,ERR_R_MALLOC_FAILURE);
+                OPENSSL_free(ret);
+                return(NULL);
+                }
+        if(meth == NULL)
+                ret->meth = default_DSO_meth;
+        else
+                ret->meth = meth;
+        ret->references = 1;
+        if((ret->meth->init != NULL) && !ret->meth->init(ret))
+                {
+                OPENSSL_free(ret);
+                ret=NULL;
+                }
+        return(ret);
+        }
+
+int DSO_free(DSO *dso)
+        {
+        int i;
+ 
+        if(dso == NULL)
+                {
+                DSOerr(DSO_F_DSO_FREE,ERR_R_PASSED_NULL_PARAMETER);
+                return(0);
+                }
+ 
+        i=CRYPTO_add(&dso->references,-1,CRYPTO_LOCK_DSO);
+#ifdef REF_PRINT
+        REF_PRINT("DSO",dso);
+#endif
+        if(i > 0) return(1);
+#ifdef REF_CHECK
+        if(i < 0)
+                {
+                fprintf(stderr,"DSO_free, bad reference count\n");
+                abort();
+                }
+#endif
+
+        if((dso->meth->dso_unload != NULL) && !dso->meth->dso_unload(dso))
+                {
+                DSOerr(DSO_F_DSO_FREE,DSO_R_UNLOAD_FAILED);
+                return(0);
+                }
+ 
+        if((dso->meth->finish != NULL) && !dso->meth->finish(dso))
+                {
+                DSOerr(DSO_F_DSO_FREE,DSO_R_FINISH_FAILED);
+                return(0);
+                }
+        
+        sk_free(dso->meth_data);
+ 
+        OPENSSL_free(dso);
+        return(1);
+        }
+
+int DSO_flags(DSO *dso)
+        {
+        return((dso == NULL) ? 0 : dso->flags);
+        }
+
+
+int DSO_up(DSO *dso)
+        {
+        if (dso == NULL)
+                {
+                DSOerr(DSO_F_DSO_UP,ERR_R_PASSED_NULL_PARAMETER);
+                return(0);
+                }
+
+        CRYPTO_add(&dso->references,1,CRYPTO_LOCK_DSO);
+        return(1);
+        }
+
+DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags)
+        {
+        DSO *ret;
+        int allocated = 0;
+
+        if(filename == NULL)
+                {
+                DSOerr(DSO_F_DSO_LOAD,ERR_R_PASSED_NULL_PARAMETER);
+                return(NULL);
+                }
+        if(dso == NULL)
+                {
+                ret = DSO_new_method(meth);
+                if(ret == NULL)
+                        {
+                        DSOerr(DSO_F_DSO_LOAD,ERR_R_MALLOC_FAILURE);
+                        return(NULL);
+                        }
+                allocated = 1;
+                }
+        else
+                ret = dso;
+        /* Bleurgh ... have to check for negative return values for
+         * errors. <grimace> */
+        if(DSO_ctrl(ret, DSO_CTRL_SET_FLAGS, flags, NULL) < 0)
+                {
+                DSOerr(DSO_F_DSO_LOAD,DSO_R_CTRL_FAILED);
+                if(allocated)
+                        DSO_free(ret);
+                return(NULL);
+                }
+        if(ret->meth->dso_load == NULL)
+                {
+                DSOerr(DSO_F_DSO_LOAD,DSO_R_UNSUPPORTED);
+                if(allocated)
+                        DSO_free(ret);
+                return(NULL);
+                }
+        if(!ret->meth->dso_load(ret, filename))
+                {
+                DSOerr(DSO_F_DSO_LOAD,DSO_R_LOAD_FAILED);
+                if(allocated)
+                        DSO_free(ret);
+                return(NULL);
+                }
+        /* Load succeeded */
+        return(ret);
+        }
+
+void *DSO_bind_var(DSO *dso, const char *symname)
+        {
+        void *ret = NULL;
+
+        if((dso == NULL) || (symname == NULL))
+                {
+                DSOerr(DSO_F_DSO_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER);
+                return(NULL);
+                }
+        if(dso->meth->dso_bind_var == NULL)
+                {
+                DSOerr(DSO_F_DSO_BIND_VAR,DSO_R_UNSUPPORTED);
+                return(NULL);
+                }
+        if((ret = dso->meth->dso_bind_var(dso, symname)) == NULL)
+                {
+                DSOerr(DSO_F_DSO_BIND_VAR,DSO_R_SYM_FAILURE);
+                return(NULL);
+                }
+        /* Success */
+        return(ret);
+        }
+
+DSO_FUNC_TYPE DSO_bind_func(DSO *dso, const char *symname)
+        {
+        DSO_FUNC_TYPE ret = NULL;
+
+        if((dso == NULL) || (symname == NULL))
+                {
+                DSOerr(DSO_F_DSO_BIND_FUNC,ERR_R_PASSED_NULL_PARAMETER);
+                return(NULL);
+                }
+        if(dso->meth->dso_bind_func == NULL)
+                {
+                DSOerr(DSO_F_DSO_BIND_FUNC,DSO_R_UNSUPPORTED);
+                return(NULL);
+                }
+        if((ret = dso->meth->dso_bind_func(dso, symname)) == NULL)
+                {
+                DSOerr(DSO_F_DSO_BIND_FUNC,DSO_R_SYM_FAILURE);
+                return(NULL);
+                }
+        /* Success */
+        return(ret);
+        }
+
+/* I don't really like these *_ctrl functions very much to be perfectly
+ * honest. For one thing, I think I have to return a negative value for
+ * any error because possible DSO_ctrl() commands may return values
+ * such as "size"s that can legitimately be zero (making the standard
+ * "if(DSO_cmd(...))" form that works almost everywhere else fail at
+ * odd times. I'd prefer "output" values to be passed by reference and
+ * the return value as success/failure like usual ... but we conform
+ * when we must... :-) */
+long DSO_ctrl(DSO *dso, int cmd, long larg, void *parg)
+        {
+        if(dso == NULL)
+                {
+                DSOerr(DSO_F_DSO_CTRL,ERR_R_PASSED_NULL_PARAMETER);
+                return(-1);
+                }
+        if((dso->meth == NULL) || (dso->meth->dso_ctrl == NULL))
+                {
+                DSOerr(DSO_F_DSO_CTRL,DSO_R_UNSUPPORTED);
+                return(-1);
+                }
+        return(dso->meth->dso_ctrl(dso,cmd,larg,parg));
+        }