linux-kernel - [PATCH 34/42] tools/nolibc/types: define PATH

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Date:   Mon,  7 Feb 2022 17:23:46 +0100
From:   Willy Tarreau <w@....eu>
To:     "Paul E . McKenney" <paulmck@...nel.org>
Cc:     Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
        Willy Tarreau <w@....eu>
Subject: [PATCH 34/42] tools/nolibc/types: define PATH_MAX and MAXPATHLEN

These ones are often used and commonly set by applications to fallback
values. Let's fix them both to agree on PATH_MAX=4096 by default, as is
already present in linux/limits.h.

Signed-off-by: Willy Tarreau <w@....eu>
---
 tools/include/nolibc/types.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/include/nolibc/types.h b/tools/include/nolibc/types.h
index dac1cc186dab..9ab922bc2f09 100644
--- a/tools/include/nolibc/types.h
+++ b/tools/include/nolibc/types.h
@@ -49,6 +49,17 @@
 #define FD_SETSIZE     256
 #endif
 
+/* PATH_MAX and MAXPATHLEN are often used and found with plenty of different
+ * values.
+ */
+#ifndef PATH_MAX
+#define PATH_MAX       4096
+#endif
+
+#ifndef MAXPATHLEN
+#define MAXPATHLEN     (PATH_MAX)
+#endif
+
 /* Special FD used by all the *at functions */
 #ifndef AT_FDCWD
 #define AT_FDCWD       (-100)
-- 
2.35.1