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From cc0cd6f71f6ef96fca2d7b730a3f0f6722fec696 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 7 May 2022 12:15:22 -0700
Subject: [PATCH] Define strndupa if it does not exist
musl e.g. does not supply strndupa, unlike glibc
Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
etc/systemd/system-generators/zfs-mount-generator.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/etc/systemd/system-generators/zfs-mount-generator.c b/etc/systemd/system-generators/zfs-mount-generator.c
index f4c6c26..255bee4 100644
--- a/etc/systemd/system-generators/zfs-mount-generator.c
+++ b/etc/systemd/system-generators/zfs-mount-generator.c
@@ -193,6 +193,15 @@ fopenat(int dirfd, const char *pathname, int flags,
return (fdopen(fd, stream_mode));
}
+#ifndef strndupa
+#define strndupa(s, n) \
+ (__extension__ ({const char *__in = (s); \
+ size_t __len = strnlen (__in, (n)) + 1; \
+ char *__out = (char *) alloca (__len); \
+ __out[__len-1] = '\0'; \
+ (char *) memcpy (__out, __in, __len-1);}))
+#endif
+
static int
line_worker(char *line, const char *cachefile)
{
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