DELETE

[trama09]

DELETE

[Ciccioo]

depending on the protocol that the socket will have to work on, the function will work with different data structures, having different addresses

 

the addrlen parameter refers to the size of the struct sockaddr *src_addr parameter, but the size of it could actually vary: you are allowed to cast the pointer to any of the other (pointers to) structure types in the family of struct sockaddr

for instance, if the socket is being used to communicate between processes in the same UNIX system, the structure that you will have to use is struct sockaddr_un

 

so, since the function has to read and write in/to that buffer, but that buffer can vary wildly, it needs to know the actual amount of data that can be read, and the amount of data that can be written to it

 

and yes, one of the protocol differences can be ipv4/ipv6, so you're right about that

[trama09]

depending on the protocol that the socket will have to work on, the function will work with different data structures, having different addresses

 

the addrlen parameter refers to the size of the struct sockaddr *src_addr parameter, but the size of it could actually vary: you are allowed to cast the pointer to any of the other (pointers to) structure types in the family of struct sockaddr

for instance, if the socket is being used to communicate between processes in the same UNIX system, the structure that you will have to use is struct sockaddr_un

 

so, since the function has to read and write in/to that buffer, but that buffer can vary wildly, it needs to know the actual amount of data that can be read, and the amount of data that can be written to it

 

and yes, one of the protocol differences can be ipv4/ipv6, so you're right about that

Awesome thanks!