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sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.

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This commit is contained in:
fbernon
2007-06-30 13:24:11 +00:00
parent c91caa06d3
commit b6750de9e8
3 changed files with 27 additions and 20 deletions
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9
src/include/lwip/sockets.h
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@@ -121,11 +121,14 @@ struct linger {
#define IPPROTO_UDP 17
#define IPPROTO_UDPLITE 136
#define INADDR_ANY 0
#define INADDR_ANY 0
#define INADDR_BROADCAST 0xffffffff
/* Flags we can use with send and recv. */
#define MSG_DONTWAIT 0x40 /* Nonblocking i/o for this operation only */
#define MSG_PEEK 0x01 /* Peeks at an incoming message */
#define MSG_WAITALL 0x02 /* Requests that the function block until the full amount of data requested can be returned */
#define MSG_OOB 0x04 /* Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */
#define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */
/*
@@ -140,7 +143,7 @@ struct linger {
*/
#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
#define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */
#define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt*/
#define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */
#define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */
#define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */
#endif /* LWIP_TCP */