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Cygwin: tcp: fix IPPROTO_TCP option handling

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- Drop definitions from <cygwin/sockets.h>
- Drop options only available on BSD
- Fix value of TCP_MAXSEG.  It was still defined as the BSD value
  while WinSock uses another value
- Handle the fact that TCP_MAXSEG is a R/O value in WinSock

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2020-06-30 13:33:57 +02:00
parent c11b0343c0
commit e037192b50
3 changed files with 16 additions and 11 deletions
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6
winsup/cygwin/include/netinet/tcp.h
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@@ -123,11 +123,7 @@ struct tcphdr {
/*
* User-settable options (used with setsockopt).
*/
#ifndef TCP_NODELAY
#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
#define TCP_MAXSEG 0x02 /* set maximum segment size */
#endif
#define TCP_NOPUSH 0x04 /* don't push last block of write */
#define TCP_NOOPT 0x08 /* don't use TCP options */
#define TCP_MAXSEG 0x04 /* get maximum segment size (r/o on windows) */
#endif