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sunrpc: Suppress clang warning on struct cmessage 

clang complains if a flexible array member (struct cmsghdr) is not a
the end of the struct (since it is a GNU extension).  The __msgread
explicit expects that 'struct ucred' is after the 'cmsg', so suppress
the warning.
This commit is contained in:
Adhemerval Zanella 2022-03-10 14:08:06 -03:00
parent 47a89e2bfd
commit aab31fa4a6
1 changed files with 7 additions and 0 deletions
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7
sunrpc/svc_unix.c
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@ -65,6 +65,7 @@
#include <libintl.h>
#include <wchar.h>
#include <shlib-compat.h>
#include <libc-diag.h>
/*
* Ops vector for AF_UNIX based rpc service handle
@ -308,12 +309,18 @@ svcunix_destroy (SVCXPRT *xprt)
}
#ifdef SCM_CREDENTIALS
/* clang complains if a flexible array member (struct cmsghdr) is not a the
end of the struct (since it is a GNU extension). The __msgread explicit
expects that 'struct ucred' is after the 'cmsg', so disable the warning. */
DIAG_PUSH_NEEDS_COMMENT_CLANG;
DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wgnu-variable-sized-type-not-at-end");
struct cmessage {
struct cmsghdr cmsg;
struct ucred cmcred;
/* hack to make sure we have enough memory */
char dummy[(CMSG_ALIGN (sizeof (struct ucred)) - sizeof (struct ucred) + sizeof (long))];
};
DIAG_POP_NEEDS_COMMENT_CLANG;
/* XXX This is not thread safe, but since the main functions in svc.c
and the rpcgen generated *_svc functions for the daemon are also not