only expose struct tcphdr under _GNU_SOURCE

the BSD and GNU versions of this structure differ, so exposing it in
the default _BSD_SOURCE profile is possibly problematic. both versions
could be simultaneously supported with anonymous unions if needed in
the future, but for now, just omitting it except under _GNU_SOURCE
should be safe.
This commit is contained in:
Rich Felker 2013-08-30 17:06:17 -04:00
parent 09b2995bcb
commit da19f88659
1 changed files with 3 additions and 1 deletions

View File

@ -31,8 +31,10 @@
#define SOL_TCP 6
#include <sys/types.h>
#include <sys/socket.h>
#include <endian.h>
#endif
#ifdef _GNU_SOURCE
#include <endian.h>
struct tcphdr
{
u_int16_t source;