[Minios-devel] [UNIKRAFT PATCH] lib/sysinfo: Avoid stringop-overflow warning

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

Avoids the GCC warning: stringop-overflow. The length argument to
`strncpy()` in `gethostname()` depend on a computed value done by
`strlen()`. We fix this by taking the given `len` argument to the
`strncpy()` operation instead.

Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
 lib/posix-sysinfo/sysinfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/posix-sysinfo/sysinfo.c b/lib/posix-sysinfo/sysinfo.c
index 2bf2c12a..7bcfc8b3 100644
--- a/lib/posix-sysinfo/sysinfo.c
+++ b/lib/posix-sysinfo/sysinfo.c
@@ -141,7 +141,7 @@ int gethostname(char *name, size_t len)
                return -1;
        }
 
-       strncpy(name, buf.nodename, node_len);
+       strncpy(name, buf.nodename, len);
 
        return 0;
 }
-- 
2.20.1


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