From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Sat, 7 Apr 2018 20:04:51 +0000 (-0400)
Subject: Increase LTTNG_HOST_NAME_MAX from 64 to 255
X-Git-Tag: v2.11.0-rc1~282
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=b867041c62b48e89c9f00430cde4c33f13a2da09

Increase LTTNG_HOST_NAME_MAX from 64 to 255

POSIX guarantees that a host name will not exceed 255 characters.
Moreover, RFC 1035 limits the length of a fully qualified domain name (FQDN)
to 255 characters.

This limit will be used as part of the lttngctl communication
protocol.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/include/lttng/constant.h b/include/lttng/constant.h
index 00074a2e4..1235c346f 100644
--- a/include/lttng/constant.h
+++ b/include/lttng/constant.h
@@ -56,7 +56,14 @@
 
 #define LTTNG_NAME_MAX				255
 
-#define LTTNG_HOST_NAME_MAX			64
+/*
+ * POSIX guarantees that a host name will not exceed 255 characters.
+ * Moreover, RFC 1035 limits the length of a fully qualified domain name (FQDN)
+ * to 255 characters.
+ *
+ * 256 is used to include a trailing NULL character.
+ */
+#define LTTNG_HOST_NAME_MAX			256
 
 #define LTTNG_PATH_MAX				4096