strace/netlink.h
Dmitry V. Levin d6c71dd061 Fix preprocessor indentation
Indent the C preprocessor directives to reflect their nesting
using the following script:

$ cppi -l $(git grep -El '^[[:space:]]*#[[:space:]]*(if|ifdef|ifndef|elif|else|endif|define|pragma)[[:space:]]' |grep -v '\.sh$') |while read f; do
	cppi < "$f" > "$f".cppi; mv "$f".cppi "$f"
done
2018-12-30 15:35:21 +00:00

56 lines
1.2 KiB
C

/*
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
* Copyright (c) 2017-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef STRACE_NETLINK_H
# define STRACE_NETLINK_H
# include <stdbool.h>
# include <sys/socket.h>
# include <linux/netlink.h>
# ifndef NETLINK_SOCK_DIAG
# define NETLINK_SOCK_DIAG 4
# endif
# ifndef NLM_F_NONREC
# define NLM_F_NONREC 0x100
# endif
# ifndef NLM_F_CAPPED
# define NLM_F_CAPPED 0x100
# endif
# undef NLMSG_HDRLEN
# define NLMSG_HDRLEN ((unsigned int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
# ifndef NLMSG_MIN_TYPE
# define NLMSG_MIN_TYPE 0x10
# endif
# ifndef NLA_ALIGN
# define NLA_ALIGN(len) (((len) + 3) & ~3)
# endif
# undef NLA_HDRLEN
# define NLA_HDRLEN ((unsigned int) NLA_ALIGN(sizeof(struct nlattr)))
# ifndef NLA_TYPE_MASK
# define NLA_F_NESTED (1 << 15)
# define NLA_F_NET_BYTEORDER (1 << 14)
# define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
# endif
static inline bool
is_nlmsg_ok(const struct nlmsghdr *const nlh, const ssize_t len)
{
return len >= (ssize_t) sizeof(*nlh)
&& nlh->nlmsg_len >= sizeof(*nlh)
&& (size_t) len >= nlh->nlmsg_len;
}
#endif /* !STRACE_NETLINK_H */