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cmUdpPort.h/c:Added cmInvalidUdpPortNumber and check for definition of HOST_NAME_MAX.

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kevin 2013-05-01 15:08:58 -07:00
parent 0882f93f50
commit 0dd7cdbbe9
2 changed files with 17 additions and 3 deletions
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7
cmUdpPort.c
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@ -18,6 +18,10 @@
#define cmUdp_SYS_ERR (-1) #define cmUdp_SYS_ERR (-1)
#define cmUdp_NULL_SOCK (-1) #define cmUdp_NULL_SOCK (-1)
#ifndef HOST_NAME_MAX
#define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
#endif
enum enum
{ {
kIsConnectedUdpFl = 0x01, kIsConnectedUdpFl = 0x01,
@ -99,6 +103,9 @@ cmUdpRC_t _cmUdpFree( cmUdp_t* p )
cmUdpRC_t _cmUdpInitAddr( cmUdp_t* p, const char* addrStr, cmUdpPort_t portNumber, struct sockaddr_in* retAddrPtr ) cmUdpRC_t _cmUdpInitAddr( cmUdp_t* p, const char* addrStr, cmUdpPort_t portNumber, struct sockaddr_in* retAddrPtr )
{ {
memset(retAddrPtr,0,sizeof(struct sockaddr_in)); memset(retAddrPtr,0,sizeof(struct sockaddr_in));
if( portNumber == kInvalidUdpPortNumber )
return cmErrMsg(&p->err,kInvalidPortNumbUdpRC,"The port number %i cannot be used.",kInvalidUdpPortNumber);
if( addrStr == NULL ) if( addrStr == NULL )
retAddrPtr->sin_addr.s_addr = htonl(INADDR_ANY); retAddrPtr->sin_addr.s_addr = htonl(INADDR_ANY);

13
cmUdpPort.h
View File

@ -26,12 +26,13 @@ extern "C" {
kRecvBufOverflowUdpRC, kRecvBufOverflowUdpRC,
kBufTooSmallUdpRC, kBufTooSmallUdpRC,
kHostNameFailUdpRC, kHostNameFailUdpRC,
kInvalidPortNumbUdpRC,
kTimeOutUdpRC kTimeOutUdpRC
}; };
typedef cmRC_t cmUdpRC_t; typedef cmRC_t cmUdpRC_t;
typedef cmHandle_t cmUdpH_t; typedef cmHandle_t cmUdpH_t;
typedef u_short cmUdpPort_t; typedef unsigned short cmUdpPort_t;
extern cmUdpH_t cmUdpNullHandle; extern cmUdpH_t cmUdpNullHandle;
@ -46,6 +47,12 @@ extern "C" {
}; };
enum
{
// port 0 is reserved by and is therefore a convenient invalid port number
kInvalidUdpPortNumber = 0
};
cmUdpRC_t cmUdpAlloc( cmCtx_t* ctx, cmUdpH_t* hp ); cmUdpRC_t cmUdpAlloc( cmCtx_t* ctx, cmUdpH_t* hp );
cmUdpRC_t cmUdpFree( cmUdpH_t* hp ); cmUdpRC_t cmUdpFree( cmUdpH_t* hp );