From 7b9e7eeec6c43a62ab1e02dfb6542e6bfb7f72dc Mon Sep 17 00:00:00 2001 From: ikbenlike Date: Sat, 5 Aug 2023 22:39:09 +0200 Subject: [PATCH] Make errnum-verification more flexible (#824) Instead of hardcoding the value to check against, use a more dynamic method to verify the error number before passing it to the kernel. --- lib/fuse_lowlevel.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c index 4b9ee89..fdef193 100644 --- a/lib/fuse_lowlevel.c +++ b/lib/fuse_lowlevel.c @@ -213,7 +213,12 @@ int fuse_send_reply_iov_nofree(fuse_req_t req, int error, struct iovec *iov, { struct fuse_out_header out; +#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 32 + const char *str = strerrordesc_np(error * -1); + if ((str == NULL && error != 0) || error > 0) { +#else if (error <= -1000 || error > 0) { +#endif fuse_log(FUSE_LOG_ERR, "fuse: bad error value: %i\n", error); error = -ERANGE; } -- 2.30.2