private extern class NativeSocketPollFD `{ struct pollfd * `}
# File descriptor
- fun fd: Int `{ return recv->fd; `}
+ fun fd: Int `{ return self->fd; `}
# List of events to be watched
- fun events: Int `{ return recv->events; `}
+ fun events: Int `{ return self->events; `}
# List of events received by the last poll function
- fun revents: Int `{ return recv->revents; `}
+ fun revents: Int `{ return self->revents; `}
new (pid: Int, events: NativeSocketPollValues) `{
struct pollfd *poll = malloc(sizeof(struct pollfd));
return d;
`}
- fun destroy `{ free(recv); `}
+ fun destroy `{ free(self); `}
- fun close: Int `{ return close(*recv); `}
+ fun close: Int `{ return close(*self); `}
- fun descriptor: Int `{ return *recv; `}
-
- fun gethostbyname(n: String): NativeSocketHostent import String.to_cstring `{ return gethostbyname(String_to_cstring(n)); `}
+ fun descriptor: Int `{ return *self; `}
fun connect(addrIn: NativeSocketAddrIn): Int `{
- return connect(*recv, (struct sockaddr*)addrIn, sizeof(*addrIn));
+ return connect(*self, (struct sockaddr*)addrIn, sizeof(*addrIn));
`}
- fun write(buffer: String): Int
- import String.to_cstring, String.length `{
- return write(*recv, (char*)String_to_cstring(buffer), String_length(buffer));
+ # Write `length` bytes from `buffer`
+ fun write(buffer: CString, length: Int): Int `{
+ return write(*self, buffer, length);
`}
# Write `value` as a single byte
- fun write_byte(value: Int): Int `{
- return write(*recv, &value, 1);
+ fun write_byte(value: Byte): Int `{
+ unsigned char byt = (unsigned char)value;
+ return write(*self, &byt, 1);
`}
- fun read: String import NativeString.to_s_with_length `{
- static char c[1024];
- int n = read(*recv, c, 1024);
- if(n < 0) {
- return NativeString_to_s_with_length("",0);
- }
- char* ret = malloc(n + 1);
- memcpy(ret, c, n);
- ret[n] = '\0';
- return NativeString_to_s_with_length(ret, n);
+ # Read `length` bytes into `buffer`, returns the number of bytes read
+ fun read(buffer: CString, length: Int): Int `{
+ return read(*self, buffer, length);
`}
# Sets an option for the socket
#
# Returns `true` on success.
fun setsockopt(level: NativeSocketOptLevels, option_name: NativeSocketOptNames, option_value: Int): Bool `{
- int err = setsockopt(*recv, level, option_name, &option_value, sizeof(int));
+ int err = setsockopt(*self, level, option_name, &option_value, sizeof(int));
if(err != 0){
return 0;
}
return 1;
`}
- fun bind(addrIn: NativeSocketAddrIn): Int `{ return bind(*recv, (struct sockaddr*)addrIn, sizeof(*addrIn)); `}
+ fun bind(addrIn: NativeSocketAddrIn): Int `{ return bind(*self, (struct sockaddr*)addrIn, sizeof(*addrIn)); `}
- fun listen(size: Int): Int `{ return listen(*recv, size); `}
+ fun listen(size: Int): Int `{ return listen(*self, size); `}
# Checks if the buffer is ready for any event specified when creating the pollfd structure
fun socket_poll(filedesc: PollFD, timeout: Int): Array[NativeSocketPollValues]
return filedesc.check_response(result)
end
+ # Poll this socket with `POLLHUP|POLLERR`
+ #
+ # A return value of 0 means there is no errors.
+ fun poll_hup_err: Int `{
+ struct pollfd fd = {*self, POLLHUP|POLLERR, 0};
+ int res = poll(&fd, 1, 0);
+ return res;
+ `}
+
# Call to the poll function of the C socket
#
# Signature:
private fun native_accept(addr_in: NativeSocketAddrIn): NativeSocket `{
socklen_t s = sizeof(struct sockaddr);
- int socket = accept(*recv, (struct sockaddr*)addr_in, &s);
+ int socket = accept(*self, (struct sockaddr*)addr_in, &s);
if (socket == -1) return NULL;
int *ptr = malloc(sizeof(int));
return new SocketAcceptResult(s, addrIn)
end
- # Set wether this socket is non blocking
+ # Set whether this socket is non blocking
fun non_blocking=(value: Bool) `{
- int flags = fcntl(*recv, F_GETFL, 0);
+ int flags = fcntl(*self, F_GETFL, 0);
if (flags == -1) flags = 0;
if (value) {
} else {
return;
}
- fcntl(*recv, F_SETFL, flags);
+ fcntl(*self, F_SETFL, flags);
+ `}
+
+ # Send `len` bytes from `buf` to `dest_addr`
+ fun sendto(buf: CString, len: Int, flags: Int, dest_addr: NativeSocketAddrIn): Int `{
+ return sendto(*self, buf, len, flags, (struct sockaddr*)dest_addr, sizeof(struct sockaddr_in));
+ `}
+
+ # Receive a message into `buf` of maximum `len` bytes
+ fun recv(buf: CString, len: Int, flags: Int): Int `{
+ return recv(*self, buf, len, flags);
+ `}
+
+ # Receive a message into `buf` of maximum `len` bytes and store sender info into `src_addr`
+ fun recvfrom(buf: CString, len: Int, flags: Int, src_addr: NativeSocketAddrIn): Int `{
+ socklen_t srclen = sizeof(struct sockaddr_in);
+ return recvfrom(*self, buf, len, flags, (struct sockaddr*)src_addr, &srclen);
`}
end
var addr_in: NativeSocketAddrIn
end
+# Socket address in the Internet namespace, pointer to a `struct sockaddr_in`
extern class NativeSocketAddrIn `{ struct sockaddr_in* `}
+
+ # `NULL` pointer
+ new nul `{ return NULL; `}
+
+ # `malloc` a new instance
new `{
struct sockaddr_in *sai = NULL;
sai = malloc(sizeof(struct sockaddr_in));
return sai;
`}
- new with_port(port: Int, family: NativeSocketAddressFamilies) `{
- struct sockaddr_in *sai = NULL;
- sai = malloc(sizeof(struct sockaddr_in));
- sai->sin_family = family;
- sai->sin_port = htons(port);
- sai->sin_addr.s_addr = INADDR_ANY;
- return sai;
+ # Set `address` and `family` from `hostent` (to use with `Sys::gethostbyname`)
+ fun fill_from_hostent(hostent: NativeSocketHostent) `{
+ self->sin_family = hostent->h_addrtype;
+ memcpy((char*)&self->sin_addr.s_addr,
+ (char*)hostent->h_addr,
+ hostent->h_length);
`}
- new with_hostent(hostent: NativeSocketHostent, port: Int) `{
- struct sockaddr_in *sai = NULL;
- sai = malloc(sizeof(struct sockaddr_in));
- sai->sin_family = hostent->h_addrtype;
- sai->sin_port = htons(port);
- memcpy((char*)&sai->sin_addr.s_addr, (char*)hostent->h_addr, hostent->h_length);
- return sai;
- `}
+ # Internet address as then IPV4 numbers-and-dots notation
+ fun address: CString `{ return (char*)inet_ntoa(self->sin_addr); `}
+
+ # Set `address` to `INADDR_ANY`
+ fun address_any `{ self->sin_addr.s_addr = INADDR_ANY; `}
- fun address: String import NativeString.to_s `{ return NativeString_to_s((char*)inet_ntoa(recv->sin_addr)); `}
+ # Set `address` to `INADDR_BROADCAST`
+ fun address_broadcast `{ self->sin_addr.s_addr = INADDR_BROADCAST; `}
- fun family: NativeSocketAddressFamilies `{ return recv->sin_family; `}
+ # Address family
+ fun family: NativeSocketAddressFamilies `{ return self->sin_family; `}
- fun port: Int `{ return ntohs(recv->sin_port); `}
+ # Address family
+ fun family=(value: NativeSocketAddressFamilies) `{ self->sin_family = value; `}
- fun destroy `{ free(recv); `}
+ # Port
+ fun port: Int `{ return ntohs(self->sin_port); `}
+
+ # Port
+ fun port=(value: Int) `{ self->sin_port = htons(value); `}
end
+# Host entry information, a pointer to a `struct hostent`
extern class NativeSocketHostent `{ struct hostent* `}
- private fun native_h_aliases(i: Int): String import NativeString.to_s `{ return NativeString_to_s(recv->h_aliases[i]); `}
-
- private fun native_h_aliases_reachable(i: Int): Bool `{ return (recv->h_aliases[i] != NULL); `}
+ private fun native_h_aliases(i: Int): CString `{
+ return self->h_aliases[i];
+ `}
+ # Alternative names for the host
fun h_aliases: Array[String]
do
- var i=0
- var d=new Array[String]
+ var res = new Array[String]
loop
- d.add(native_h_aliases(i))
- if native_h_aliases_reachable(i+1) == false then break
- i += 1
+ var ha = native_h_aliases(res.length)
+ if ha.address_is_null then break
+ res.add ha.to_s
end
- return d
+ return res
end
- fun h_addr: String import NativeString.to_s `{ return NativeString_to_s((char*)inet_ntoa(*(struct in_addr*)recv->h_addr)); `}
+ fun h_addr: CString `{
+ return (char*)inet_ntoa(*(struct in_addr*)self->h_addr);
+ `}
- fun h_addrtype: Int `{ return recv->h_addrtype; `}
+ fun h_addrtype: Int `{ return self->h_addrtype; `}
- fun h_length: Int `{ return recv->h_length; `}
+ fun h_length: Int `{ return self->h_length; `}
- fun h_name: String import NativeString.to_s `{ return NativeString_to_s(recv->h_name); `}
+ fun h_name: CString `{ return self->h_name; `}
end
extern class NativeTimeval `{ struct timeval* `}
return tv;
`}
- fun seconds: Int `{ return recv->tv_sec; `}
+ fun seconds: Int `{ return self->tv_sec; `}
- fun microseconds: Int `{ return recv->tv_usec; `}
+ fun microseconds: Int `{ return self->tv_usec; `}
- fun destroy `{ free(recv); `}
+ fun destroy `{ free(self); `}
end
extern class NativeSocketSet `{ fd_set* `}
return f;
`}
- fun set(s: NativeSocket) `{ FD_SET(*s, recv); `}
+ fun set(s: NativeSocket) `{ FD_SET(*s, self); `}
- fun is_set(s: NativeSocket): Bool `{ return FD_ISSET(*s, recv); `}
+ fun is_set(s: NativeSocket): Bool `{ return FD_ISSET(*s, self); `}
- fun zero `{ FD_ZERO(recv); `}
+ fun zero `{ FD_ZERO(self); `}
- fun clear(s: NativeSocket) `{ FD_CLR(*s, recv); `}
+ fun clear(s: NativeSocket) `{ FD_CLR(*s, self); `}
- fun destroy `{ free(recv); `}
+ fun destroy `{ free(self); `}
end
class NativeSocketObserver
# are boxed objects, passing them to a C function is illegal.
fun select(max: NativeSocket, reads: nullable NativeSocketSet, write: nullable NativeSocketSet,
except: nullable NativeSocketSet, timeout: NativeTimeval): Int `{
- fd_set *rds, *wts, *exs = NULL;
+ fd_set *rds = NULL,
+ *wts = NULL,
+ *exs = NULL;
struct timeval *tm = NULL;
if (reads != NULL) rds = (fd_set*)reads;
if (write != NULL) wts = (fd_set*)write;
new pf_key `{ return PF_KEY; `}
new pf_inet6 `{ return PF_INET6; `}
new pf_max `{ return PF_MAX; `}
+ new ipproto_udp `{ return IPPROTO_UDP; `}
end
# Level on which to set options
# Combines two NativeSocketPollValues
private fun +(other: NativeSocketPollValues): NativeSocketPollValues `{
- return recv | other;
+ return self | other;
+ `}
+end
+
+redef class Sys
+ # Get network host entry
+ fun gethostbyname(name: CString): NativeSocketHostent `{
+ return gethostbyname(name);
`}
+
+ # Last error raised by `gethostbyname`
+ fun h_errno: HErrno `{ return h_errno; `}
+end
+
+# Error code of `Sys::h_errno`
+extern class HErrno `{ int `}
+ # The specified host is unknown
+ fun host_not_found: Bool `{ return self == HOST_NOT_FOUND; `}
+
+ # The requested name is valid but does not have an IP address
+ #
+ # Same as `no_data`.
+ fun no_address: Bool `{ return self == NO_ADDRESS; `}
+
+ # The requested name is valid byt does not have an IP address
+ #
+ # Same as `no_address`.
+ fun no_data: Bool `{ return self == NO_DATA; `}
+
+ # A nonrecoverable name server error occurred
+ fun no_recovery: Bool `{ return self == NO_RECOVERY; `}
+
+ # A temporary error occurred on an authoritative name server, try again later
+ fun try_again: Bool `{ return self == TRY_AGAIN; `}
+
+ redef fun to_s
+ do
+ if host_not_found then
+ return "The specified host is unknown"
+ else if no_address then
+ return "The requested name is valid but does not have an IP address"
+ else if no_recovery then
+ return "A nonrecoverable name server error occurred"
+ else if try_again then
+ return "A temporary error occurred on an authoritative name server, try again later"
+ else
+ # This may happen if another call was made to `gethostbyname`
+ # before we fetch the error code.
+ return "Unknown error on `gethostbyname`"
+ end
+ end
end
nitlanguage / nit.git / blobdiff