From e439d74b7ffaf04b699a96253b03d911cc8a9dec Mon Sep 17 00:00:00 2001
From: David Timber <dxdt@dev.snart.me>
Date: Wed, 6 Nov 2024 14:33:12 +0100
Subject: Add email alert to bitsquat ...

- bitsquat returns exit code 3 upon bitflip
---
 bitsquat/.gitignore     |  3 +++
 bitsquat/Makefile       |  2 +-
 bitsquat/bitsquat-wired | 18 ++++++++++++++++++
 bitsquat/bitsquat.c     |  2 +-
 4 files changed, 23 insertions(+), 2 deletions(-)
 create mode 100644 bitsquat/.gitignore
 create mode 100755 bitsquat/bitsquat-wired

diff --git a/bitsquat/.gitignore b/bitsquat/.gitignore
new file mode 100644
index 0000000..fab703c
--- /dev/null
+++ b/bitsquat/.gitignore
@@ -0,0 +1,3 @@
+/bitsquat
+/MAILTO
+/bitsquat.out
diff --git a/bitsquat/Makefile b/bitsquat/Makefile
index aaa47ec..a9bcb6e 100644
--- a/bitsquat/Makefile
+++ b/bitsquat/Makefile
@@ -7,7 +7,7 @@ CC_CMD = $(CC) $(CC_OPTS) $(CC_OPTS_BT) $(CC_OPTS_EXTRA)
 all: bitsquat
 
 clean:
-	rm -f bitsquat
+	rm -f bitsquat bitsquat.*.out
 
 bitsquat: bitsquat.c
 	$(CC_CMD) -o bitsquat bitsquat.c
diff --git a/bitsquat/bitsquat-wired b/bitsquat/bitsquat-wired
new file mode 100755
index 0000000..0ad4bc6
--- /dev/null
+++ b/bitsquat/bitsquat-wired
@@ -0,0 +1,18 @@
+#!/bin/sh
+set -e
+. ./MAILTO
+set +e
+
+if [ -z "$MAILTO" ]; then
+	echo "bitsquat-wired: empty MAILTO env var" >&2
+	exit 2
+fi
+
+OUTFILE=bitsquat.$$.out
+
+./bitsquat $@ | tee "$OUTFILE"
+if [ $? -eq 3 ]; then
+	mail -s "bitsquat alert" $MAILTO < "$OUTFILE"
+else
+	rm -f "$OUTFILE"
+fi
diff --git a/bitsquat/bitsquat.c b/bitsquat/bitsquat.c
index ea421ba..ed22547 100644
--- a/bitsquat/bitsquat.c
+++ b/bitsquat/bitsquat.c
@@ -257,7 +257,7 @@ static int do_main (void) {
 				(const uint8_t*)m1,
 				(const uint8_t*)m2,
 				s);
-			ec = 1;
+			ec = 3;
 			goto END;
 		}
 
-- 
cgit