Unix Programming - sendto:: Invalid argument.

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sendto:: Invalid argument.

DaVinci

2006-09-21, 4:01 am

#define PORT 2223
why htonl(PORT) will make sendto()
if(sendto(sockfd,buff3,10,0,
(struct sockaddr*)&

,sizeof(

))<0)
error,but htons(PORTPort) will not ?
the error is :

sendto:: Invalid argument.

DaVinci

2006-09-21, 4:01 am

DaVinci wrote:
> #define PORT 2223
> why htonl(PORT) will make sendto()
> if(sendto(sockfd,buff3,10,0,
> (struct sockaddr*)&

,sizeof(

))<0)
> error,but htons(PORTPort) will not ?
> the error is :
>
> sendto:: Invalid argument.
I am sorry to touble all of your.
Maybe I know the answer now,
The Port is 16bit.
so htons() is right choice.

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