add kvm-img wrapper script

[bin.git] / bsmtp-pull

diff --git a/bsmtp-pull b/bsmtp-pull
index 5c95f92e4c067b2e1a149b2487f8b595c9494056..ebaee7ed7a652a2962456ab9756e907e40757cae 100755 (executable)
--- a/bsmtp-pull
+++ b/bsmtp-pull
@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /bin/bash
 # Depends: lockfile-progs, ssh
 set -e
 
@@ -19,13 +19,16 @@ HOST="$1"
 # By default, lockfile-create gives up after three minutes, so don't cron
 # this any more frequently than that without supplying a --retry argument.
 lockfile-create "$HOST"
+# Race condition pointed out by pjb: this doesn't guarantee that the lock is
+# held before the critical section starts.
 lockfile-touch "$HOST" &
 TOUCH="$!"
 trap 'kill "$TOUCH"; lockfile-remove "$HOST"' EXIT ERR HUP INT QUIT TERM
+disown %1
 
 ssh -2 -i "$HOME/.ssh/id-bsmtp-$HOST" -C "$HOST" bsmtp-pull-server > "$HOST"
 [ -s "$HOST" ] || exit 0
-/usr/sbin/sendmail -bS < "$HOST"
+/usr/sbin/sendmail -bS -odq < "$HOST"
 rm -f "$HOST"
 
 exit 0