Make the DSO code for VMS work again. First attempt.
authorRichard Levitte <levitte@openssl.org>
Sun, 31 Dec 2000 01:55:46 +0000 (01:55 +0000)
committerRichard Levitte <levitte@openssl.org>
Sun, 31 Dec 2000 01:55:46 +0000 (01:55 +0000)
crypto/dso/dso_vms.c

index bd28453..b8fee7d 100644 (file)
@@ -133,10 +133,18 @@ DSO_METHOD *DSO_METHOD_vms(void)
 
 static int vms_load(DSO *dso)
        {
-#if 0
+       void *ptr = NULL;
+       /* See applicable comments in dso_dl.c */
+       char *filename = DSO_convert_filename(dso, NULL);
        DSO_VMS_INTERNAL *p;
        const char *sp1, *sp2;  /* Search result */
 
+       if(filename == NULL)
+               {
+               DSOerr(DSO_F_DLFCN_LOAD,DSO_R_NO_FILENAME);
+               goto err;
+               }
+
        /* A file specification may look like this:
         *
         *      node::dev:[dir-spec]name.type;ver
@@ -178,14 +186,14 @@ static int vms_load(DSO *dso)
                || (sp1 - filename) + strlen(sp2) > FILENAME_MAX)
                {
                DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG);
-               return(0);
+               goto err;
                }
 
        p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL));
        if(p == NULL)
                {
                DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE);
-               return(0);
+               goto err;
                }
 
        strncpy(p->filename, sp1, sp2-sp1);
@@ -207,16 +215,19 @@ static int vms_load(DSO *dso)
        if(!sk_push(dso->meth_data, (char *)p))
                {
                DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR);
-               OPENSSL_free(p);
-               return(0);
+               goto err;
                }
+
+       /* Success (for now, we lie.  We actually do not know...) */
+       dso->loaded_filename = filename;
        return(1);
-#else
-       /* See the comments lower down in the vms_name_converter
-        * "implementation" :-) */
-       please_break_compilation();
-       return(bother_richard);
-#endif
+err:
+       /* Cleanup! */
+       if(p != NULL)
+               OPENSSL_free(p);
+       if(filename != NULL)
+               OPENSSL_free(filename);
+       return(0);
        }
 
 /* Note that this doesn't actually unload the shared image, as there is no
@@ -353,26 +364,9 @@ static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname)
        return sym;
        }
 
-static char *vms_name_converter(DSO *dso)
+static char *vms_name_converter(DSO *dso, const char *filename)
        {
-       /* Implementation note: on VMS is it preferable to do real conversions
-        * here, or to actually have it performed in-line with the bind calls
-        * (given that VMS never actually does a load except implicitly within
-        * the bind functions). Another note: normally (eg. dlfcn), the
-        * DSO_load call will either load, put the loaded filename into the DSO
-        * (which marks it effectively as "read-only"), and return success - or
-        * it will fail. VMS needs to work out what to do - otherwise DSO_load
-        * will always succeed, but leave the DSO looking unloaded (because the
-        * loaded_filename will be NULL still) and then real loading (and
-        * setting of loaded_filename) will only happen during the first bind
-        * call (which should have error checking anyway to prevent you calling
-        * it on an "unloaded" DSO - thus giving VMS *serious* grief). Richard,
-        * what do you think? Is it worth having DSO_load() try to find and pin
-        * itself to a library file (and populate loaded_filename) even though
-        * it's unecessary to actually do a load prior to the first bind call?
-        * I leave it to you ... :-) */
-       deliberately_break_compilation_here();
-       return(1);
+       return(filename);
        }
 
 #endif /* VMS */