From 8f1fdbc54a873abc7375c785b2b6ee5440910de2 Mon Sep 17 00:00:00 2001
From: Claes Nästén <pekdon@gmail.com>
Date: Mon, 6 Dec 2021 07:49:15 +0100
Subject: fix: add STRNLEN compatability macro

Older SunOS systems come without strnlen, add STRNLEN macro in line with
the other str* compat macros.
---
 src/nvim/strings.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/nvim/strings.c')

diff --git a/src/nvim/strings.c b/src/nvim/strings.c
index c58e052ae9..27f93fe4ce 100644
--- a/src/nvim/strings.c
+++ b/src/nvim/strings.c
@@ -394,6 +394,18 @@ void del_trailing_spaces(char_u *ptr)
   }
 }
 
+#if !defined(HAVE_STRNLEN)
+size_t xstrnlen(const char *s, size_t n)
+  FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE
+{
+  const char *end = memchr(s, '\0', n);
+  if (end == NULL) {
+    return n;
+  }
+  return end - s;
+}
+#endif
+
 #if (!defined(HAVE_STRCASECMP) && !defined(HAVE_STRICMP))
 /*
  * Compare two strings, ignoring case, using current locale.
-- 
cgit