Mirror/frr
0
0
Fork 1
mirror of https://github.com/FRRouting/frr.git synced 2025-04-30 13:37:17 +02:00
Code Issues Actions 4 Packages Projects Releases Wiki Activity

build: check for sendmmsg() and struct mmsghdr

Browse source 
These will be used by the RFC5424 log target.

Signed-off-by: David Lamparter <equinox@diac24.net>
This commit is contained in:
David Lamparter 2021-04-10 23:03:58 +02:00 committed by David Lamparter
parent 939e32702a
commit d948c317c5
2 changed files with 23 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
configure.ac
View file

@ -1299,8 +1299,11 @@ AC_CHECK_FUNCS([ \
openat \
unlinkat \
posix_fallocate \
sendmmsg \
])
AC_CHECK_MEMBERS([struct mmsghdr.msg_hdr], [], [], FRR_INCLUDES)
dnl ##########################################################################
dnl LARGE if block spans a lot of "configure"!
if test "$enable_clippy_only" != "yes"; then

20
lib/zebra.h
View file

@ -230,6 +230,26 @@ size_t strlcpy(char *__restrict dest,
const char *__restrict src, size_t destsize);
#endif
#if !defined(HAVE_STRUCT_MMSGHDR_MSG_HDR) || !defined(HAVE_SENDMMSG)
/* avoid conflicts in case we have partial support */
#define mmsghdr frr_mmsghdr
#define sendmmsg frr_sendmmsg
struct mmsghdr {
struct msghdr msg_hdr;
unsigned int msg_len;
};
/* just go 1 at a time here, the loop this is used in will handle the rest */
static inline int sendmmsg(int fd, struct mmsghdr *mmh, unsigned int len,
int flags)
{
int rv = sendmsg(fd, &mmh->msg_hdr, 0);
return rv > 0 ? 1 : rv;
}
#endif
/*
* RFC 3542 defines several macros for using struct cmsghdr.
* Here, we define those that are not present