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authorJune McEnroe <june@causal.agency>2020-08-17 15:59:45 -0400
committerJune McEnroe <june@causal.agency>2020-08-17 15:59:45 -0400
commit620735523fad4d9bba05df085966e8e21d410fc8 (patch)
tree05c7ff553c3ab0b1ca08b47a847accb8760fab6a /daemon.c
parentSimplify parseConfig error handling (diff)
downloadcatsit-620735523fad4d9bba05df085966e8e21d410fc8.tar.gz
catsit-620735523fad4d9bba05df085966e8e21d410fc8.zip
Truncate PID file after opening and locking
Diffstat (limited to '')
-rw-r--r--daemon.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/daemon.c b/daemon.c
index 99b9fb9..1643200 100644
--- a/daemon.c
+++ b/daemon.c
@@ -251,6 +251,9 @@ int main(int argc, char *argv[]) {
 			pidPath, O_WRONLY | O_CREAT | O_EXLOCK | O_CLOEXEC, 0600
 		);
 		if (pidFile < 0) err(EX_CANTCREAT, "%s", pidPath);
+
+		error = ftruncate(pidFile, 0);
+		if (error) err(EX_IOERR, "%s", pidPath);
 	}
 
 	// We can't lock a named pipe, so just warn if it already exists.