From 856d456a71a591fe36b3af149abc5cb89c60b59d Mon Sep 17 00:00:00 2001
From: Richard Levitte <levitte@openssl.org>
Date: Sun, 31 Dec 2000 01:55:46 +0000
Subject: [PATCH] Make the DSO code for VMS work again.  First attempt.

---
 crypto/dso/dso_vms.c | 54 ++++++++++++++++++++------------------------
 1 file changed, 24 insertions(+), 30 deletions(-)

diff --git a/crypto/dso/dso_vms.c b/crypto/dso/dso_vms.c
index bd284535f1..b8fee7de3c 100644
--- a/crypto/dso/dso_vms.c
+++ b/crypto/dso/dso_vms.c
@@ -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 */