From 7e35cc61033fa2d02c44640ccc7214ffae000466 Mon Sep 17 00:00:00 2001
From: Stefan Rueger <stefan.rueger@urclocks.com>
Date: Mon, 22 Apr 2024 15:17:45 +0100
Subject: [PATCH] return LIBAVRDUDE_EXIT instead of exit(0)

---
 src/jtagmkII.c   | 2 +-
 src/libavrdude.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/jtagmkII.c b/src/jtagmkII.c
index 7a52d285..499e6f18 100644
--- a/src/jtagmkII.c
+++ b/src/jtagmkII.c
@@ -1382,7 +1382,7 @@ static int jtagmkII_parseextparms(const PROGRAMMER *pgm, const LISTID extparms)
       if (pgm->flag & PGM_FL_IS_PDI)
         msg_error("  -xrtsdtr=low,high       Force RTS/DTR lines low or high state during programming\n");
       msg_error(  "  -xhelp                  Show this help menu and exit\n");
-      exit(0);
+      return LIBAVRDUDE_EXIT;;
     }
 
     pmsg_error("invalid extended parameter '%s'\n", extended_param);
diff --git a/src/libavrdude.h b/src/libavrdude.h
index 453b22a0..60cf4ebf 100644
--- a/src/libavrdude.h
+++ b/src/libavrdude.h
@@ -59,6 +59,7 @@ typedef uint32_t pinmask_t;
 #define LIBAVRDUDE_NOTSUPPORTED (-2) // operation not supported
 #define LIBAVRDUDE_SOFTFAIL (-3) // returned, eg, by avr_signature() if caller
                                  // might proceed with chip erase
+#define LIBAVRDUDE_EXIT (-4)     // End all operations in this session
 
 /* formerly lists.h */