correct error signalling for opendir() failure

crypto/err/err.c

@@ -116,6 +116,7 @@ static ERR_STRING_DATA ERR_str_functs[]=
 #ifdef WINDOWS
 	{ERR_PACK(0,SYS_F_WSASTARTUP,0),	"WSAstartup"},
 #endif
+	{ERR_PACK(0,SYS_F_OPENDIR,0),		"opendir"},
 	{0,NULL},
 	};
 

crypto/err/err.h

@@ -170,6 +170,7 @@ typedef struct err_state_st
 #define SYS_F_LISTEN		7
 #define SYS_F_ACCEPT		8
 #define SYS_F_WSASTARTUP	9 /* Winsock stuff */
+#define SYS_F_OPENDIR		10
 
 #define ERR_R_FATAL		32	
 /* reasons */

ssl/ssl_cert.c

@@ -685,7 +685,9 @@ int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
     /* Note that a side effect is that the CAs will be sorted by name */
     if(!d)
 	{
-	SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE);
+	SYSerr(SYS_F_OPENDIR, get_last_sys_error());
+	ERR_add_error_data(3, "opendir('", dir, "')");
+	SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
 	goto err;
 	}