-/* dso_lib.c */
+/* dso_lib.c -*- mode:C; c-file-style: "eay" -*- */
/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
* project 2000.
*/
* to stealing the "best available" method. Will fallback
* to DSO_METH_null() in the worst case. */
default_DSO_meth = DSO_METHOD_openssl();
- ret = (DSO *)Malloc(sizeof(DSO));
+ 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)
+ ret->meth_data = sk_new_null();
+ if(ret->meth_data == NULL)
{
/* sk_new doesn't generate any errors so we do */
DSOerr(DSO_F_DSO_NEW_METHOD,ERR_R_MALLOC_FAILURE);
- Free(ret);
+ OPENSSL_free(ret);
return(NULL);
}
if(meth == NULL)
ret->references = 1;
if((ret->meth->init != NULL) && !ret->meth->init(ret))
{
- Free(ret);
+ OPENSSL_free(ret);
ret=NULL;
}
return(ret);
}
sk_free(dso->meth_data);
+ if(dso->filename != NULL)
+ OPENSSL_free(dso->filename);
+ if(dso->loaded_filename != NULL)
+ OPENSSL_free(dso->loaded_filename);
- Free(dso);
+ OPENSSL_free(dso);
return(1);
}
}
-int DSO_up(DSO *dso)
+int DSO_up_ref(DSO *dso)
{
if (dso == NULL)
{
- DSOerr(DSO_F_DSO_UP,ERR_R_PASSED_NULL_PARAMETER);
+ DSOerr(DSO_F_DSO_UP_REF,ERR_R_PASSED_NULL_PARAMETER);
return(0);
}
return(1);
}
-DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth)
+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);
+ goto err;
}
allocated = 1;
+ /* Pass the provided flags to the new DSO object */
+ if(DSO_ctrl(ret, DSO_CTRL_SET_FLAGS, flags, NULL) < 0)
+ {
+ DSOerr(DSO_F_DSO_LOAD,DSO_R_CTRL_FAILED);
+ goto err;
+ }
}
else
ret = dso;
+ /* Don't load if we're currently already loaded */
+ if(ret->filename != NULL)
+ {
+ DSOerr(DSO_F_DSO_LOAD,DSO_R_DSO_ALREADY_LOADED);
+ goto err;
+ }
+ /* filename can only be NULL if we were passed a dso that already has
+ * one set. */
+ if(filename != NULL)
+ if(!DSO_set_filename(ret, filename))
+ {
+ DSOerr(DSO_F_DSO_LOAD,DSO_R_SET_FILENAME_FAILED);
+ goto err;
+ }
+ filename = ret->filename;
+ if(filename == NULL)
+ {
+ DSOerr(DSO_F_DSO_LOAD,DSO_R_NO_FILENAME);
+ goto err;
+ }
if(ret->meth->dso_load == NULL)
{
DSOerr(DSO_F_DSO_LOAD,DSO_R_UNSUPPORTED);
- if(allocated)
- DSO_free(ret);
- return(NULL);
+ goto err;
}
- if(!ret->meth->dso_load(ret, filename))
+ if(!ret->meth->dso_load(ret))
{
DSOerr(DSO_F_DSO_LOAD,DSO_R_LOAD_FAILED);
- if(allocated)
- DSO_free(ret);
- return(NULL);
+ goto err;
}
/* Load succeeded */
return(ret);
+err:
+ if(allocated)
+ DSO_free(ret);
+ return(NULL);
}
-void *DSO_bind(DSO *dso, const char *symname)
+void *DSO_bind_var(DSO *dso, const char *symname)
{
void *ret = NULL;
if((dso == NULL) || (symname == NULL))
{
- DSOerr(DSO_F_DSO_BIND,ERR_R_PASSED_NULL_PARAMETER);
+ 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 == NULL)
+ if(dso->meth->dso_bind_func == NULL)
{
- DSOerr(DSO_F_DSO_BIND,DSO_R_UNSUPPORTED);
+ DSOerr(DSO_F_DSO_BIND_FUNC,DSO_R_UNSUPPORTED);
return(NULL);
}
- if(!dso->meth->dso_bind(dso, symname, &ret))
+ if((ret = dso->meth->dso_bind_func(dso, symname)) == NULL)
{
- DSOerr(DSO_F_DSO_BIND,DSO_R_SYM_FAILURE);
+ 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);
+ }
+ /* We should intercept certain generic commands and only pass control
+ * to the method-specific ctrl() function if it's something we don't
+ * handle. */
+ switch(cmd)
+ {
+ case DSO_CTRL_GET_FLAGS:
+ return dso->flags;
+ case DSO_CTRL_SET_FLAGS:
+ dso->flags = (int)larg;
+ return(0);
+ case DSO_CTRL_OR_FLAGS:
+ dso->flags |= (int)larg;
+ return(0);
+ default:
+ break;
+ }
+ 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));
+ }
+
+int DSO_set_name_converter(DSO *dso, DSO_NAME_CONVERTER_FUNC cb,
+ DSO_NAME_CONVERTER_FUNC *oldcb)
+ {
+ if(dso == NULL)
+ {
+ DSOerr(DSO_F_DSO_SET_NAME_CONVERTER,
+ ERR_R_PASSED_NULL_PARAMETER);
+ return(0);
+ }
+ if(oldcb)
+ *oldcb = dso->name_converter;
+ dso->name_converter = cb;
+ return(1);
+ }
+
+const char *DSO_get_filename(DSO *dso)
+ {
+ if(dso == NULL)
+ {
+ DSOerr(DSO_F_DSO_GET_FILENAME,ERR_R_PASSED_NULL_PARAMETER);
+ return(NULL);
+ }
+ return(dso->filename);
+ }
+
+int DSO_set_filename(DSO *dso, const char *filename)
+ {
+ char *copied;
+
+ if((dso == NULL) || (filename == NULL))
+ {
+ DSOerr(DSO_F_DSO_SET_FILENAME,ERR_R_PASSED_NULL_PARAMETER);
+ return(0);
+ }
+ if(dso->loaded_filename)
+ {
+ DSOerr(DSO_F_DSO_SET_FILENAME,DSO_R_DSO_ALREADY_LOADED);
+ return(0);
+ }
+ /* We'll duplicate filename */
+ copied = OPENSSL_malloc(strlen(filename) + 1);
+ if(copied == NULL)
+ {
+ DSOerr(DSO_F_DSO_SET_FILENAME,ERR_R_MALLOC_FAILURE);
+ return(0);
+ }
+ strcpy(copied, filename);
+ if(dso->filename)
+ OPENSSL_free(dso->filename);
+ dso->filename = copied;
+ return(1);
+ }
+
+char *DSO_merge(DSO *dso, const char *filespec1, const char *filespec2)
+ {
+ char *result = NULL;
+
+ if(dso == NULL || filespec1 == NULL)
+ {
+ DSOerr(DSO_F_DSO_MERGE,ERR_R_PASSED_NULL_PARAMETER);
+ return(NULL);
+ }
+ if(filespec1 == NULL)
+ filespec1 = dso->filename;
+ if(filespec1 == NULL)
+ {
+ DSOerr(DSO_F_DSO_MERGE,DSO_R_NO_FILE_SPECIFICATION);
+ return(NULL);
+ }
+ if((dso->flags & DSO_FLAG_NO_NAME_TRANSLATION) == 0)
+ {
+ if(dso->merger != NULL)
+ result = dso->merger(dso, filespec1, filespec2);
+ else if(dso->meth->dso_merger != NULL)
+ result = dso->meth->dso_merger(dso,
+ filespec1, filespec2);
+ }
+ return(result);
+ }
+
+char *DSO_convert_filename(DSO *dso, const char *filename)
+ {
+ char *result = NULL;
+
+ if(dso == NULL)
+ {
+ DSOerr(DSO_F_DSO_CONVERT_FILENAME,ERR_R_PASSED_NULL_PARAMETER);
+ return(NULL);
+ }
+ if(filename == NULL)
+ filename = dso->filename;
+ if(filename == NULL)
+ {
+ DSOerr(DSO_F_DSO_CONVERT_FILENAME,DSO_R_NO_FILENAME);
+ return(NULL);
+ }
+ if((dso->flags & DSO_FLAG_NO_NAME_TRANSLATION) == 0)
+ {
+ if(dso->name_converter != NULL)
+ result = dso->name_converter(dso, filename);
+ else if(dso->meth->dso_name_converter != NULL)
+ result = dso->meth->dso_name_converter(dso, filename);
+ }
+ if(result == NULL)
+ {
+ result = OPENSSL_malloc(strlen(filename) + 1);
+ if(result == NULL)
+ {
+ DSOerr(DSO_F_DSO_CONVERT_FILENAME,
+ ERR_R_MALLOC_FAILURE);
+ return(NULL);
+ }
+ strcpy(result, filename);
+ }
+ return(result);
+ }
+
+const char *DSO_get_loaded_filename(DSO *dso)
+ {
+ if(dso == NULL)
+ {
+ DSOerr(DSO_F_DSO_GET_LOADED_FILENAME,
+ ERR_R_PASSED_NULL_PARAMETER);
+ return(NULL);
+ }
+ return(dso->loaded_filename);
+ }
projects / openssl.git / blobdiff