From 2209f25086647a7df01ac89a54b2d944b2ff4e57 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Sun, 6 Feb 2022 11:16:57 -0800
Subject: [PATCH] SCP: Add a success or failure indicator preceeding messages

---
 scp.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/scp.c b/scp.c
index a5384b0c..76044553 100644
--- a/scp.c
+++ b/scp.c
@@ -13815,15 +13815,20 @@ char *buf = stackbuf;
 int32 len;
 va_list arglist;
 t_bool inhibit_message = (!sim_show_message || (stat & SCPE_NOMESSAGE));
+char msg_prefix[32] = "";
+size_t prefix_len;
 
 if ((stat == SCPE_OK) && (sim_quiet || (sim_switches & SWMASK ('Q'))))
     return stat;
+sprintf (msg_prefix, "%%SIM-%s: ", (stat == SCPE_OK) ? "INFO" : "ERROR");
+prefix_len = strlen (msg_prefix);
 while (1) {                                         /* format passed string, args */
     va_start (arglist, fmt);
+    strlcpy (buf, msg_prefix, bufsize);
 #if defined(NO_vsnprintf)
-    len = vsprintf (buf, fmt, arglist);
+    len = prefix_len + vsprintf (buf + prefix_len, fmt, arglist);
 #else                                               /* !defined(NO_vsnprintf) */
-    len = vsnprintf (buf, bufsize-1, fmt, arglist);
+    len = prefix_len + vsnprintf (buf + prefix_len, bufsize - (1 + prefix_len), fmt, arglist);
 #endif                                              /* NO_vsnprintf */
     va_end (arglist);