`socklen_t` is an opaque integer type defined in `socket.h`. It is related to socket APIs.
Questions tagged [socklen-t]
9 questions
8
votes
2 answers
invalid conversion from int to socklen
Below is my code for Linux.
I am implementing a client/server application and below is the server .cpp file.
int main()
{
int serverFd, clientFd, serverLen, clientLen;
struct sockaddr_un serverAddress;/* Server address */
struct sockaddr_un…
Andres
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7
votes
1 answer
Data Type - socklen_t, sa_family_t
I'm building a simple socket web server using the sys/socket.h lib, and I came across the socklen_t and sa_family_t data types and am a bit confused on what their actual purpose is.
Definition:
sa_family_t - unsigned integer type.
socklen_t - an…
Jordan Davis
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6
votes
3 answers
getnameinfo specifies socklen_t
The 2nd arg for the getnameinfo prototype asks for a socklen_t type but sizeof uses size_t. So how can I get socklen_t ?
Prototype:
int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
char *restrict node, socklen_t nodelen,…
Neeladri Vishweswaran
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5
votes
3 answers
Differ in signedness - warning
I don't understand my warning in gcc compiler.
Warning is: warning: pointer targets in passing argument 6 of ‘recvfrom’ differ in signedness I don't know, where is a problem, I am not using signed and unsigned value.
Problem is on…
staigoun
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2
votes
0 answers
Why does inet_ntop() use socklen_t to describe size of textual buffer?
From a recent Linux man-page:
const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
This function converts the network address structure src in the af address family into a character string.
size describes the size of…
alk
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1
vote
2 answers
error C2065: 'socklen_t' : undeclared identifier
The whole error is:
Error 1 error C2065: 'socklen_t' : undeclared identifier c:\users\richard\documents\visual studio 2010\projects\server\server\server.cpp 41 1 Server
This is the problematic line:
int iRcvdBytes=recvfrom(iSockFd, buff,…
Richard Knop
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0
votes
1 answer
In sockets, why do I have to use sizeof(addr) in connect() instead of using (socklen_t)&addr like in accept()?
I'm experimenting with sockets in C++, and I don't understand why in the accept() function the last parameter is:
socklen_t *addr_len
And I can do this:
accept(m_sock, (struct sockaddr *)&addr, (socklen_t *)&addr);
But in the connect() function…
user15747807
0
votes
1 answer
Trying to implement TCP echo server in C
Was trying to implement a TCP echo server with C, and came across this code while searching the web and was trying to compile it. It shows some error related to socket.h
#include
#include
#include
#include…
akbharath
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-1
votes
1 answer
Why is the address length argument is pointer in the function accept() and recv()?
int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
I don't understand why the addrlen argument is pointer, but not socklen_t ?
John_ABC
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