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%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
license = bsd
%% module
#include "dk4sock.h"
#include <stdio.h>
#if DK4_HAVE_ERRNO_H
#ifndef ERRNO_H_INCLUDED
#include <errno.h>
#define ERRNO_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_FCNTL_H
#ifndef FCNTL_H_INCLUDED
#include <fcntl.h>
#define FCNTL_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_UNISTD_H
#ifndef UNISTD_H_INCLUDED
#include <unistd.h>
#define UNISTD_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_IO_H
#ifndef IO_H_INCLUDED
#include <io.h>
#define IO_H_INCLUDED 1
#endif
#endif
$!trace-include
int
dk4socket_option_set_nonblock(
dk4_socket_t sock,
int val,
dk4_er_t *erp
)
{
#if DK4_ON_WINDOWS
unsigned long xv = 0UL;
int back = DK4_SOCKET_RESULT_FAILED;
if (INVALID_SOCKET != sock) {
if (0 != val) { xv = 0x11111111UL; }
WSASetLastError(0);
if (0 == ioctlsocket(sock, FIONBIO, &xv)) {
back = DK4_SOCKET_RESULT_SUCCESS;
} else {
dk4error_set_idetails(erp, DK4_E_SOCKET_IOCTLSOCKET, WSAGetLastError());
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
#else
int back = DK4_SOCKET_RESULT_FAILED;
int om;
if (INVALID_SOCKET != sock) {
om = fcntl(sock, F_GETFL);
if (0 != val) {
if (0 != (om & O_NONBLOCK)) {
back = DK4_SOCKET_RESULT_SUCCESS;
} else {
om |= O_NONBLOCK;
errno = 0;
if (-1 != fcntl(sock, F_SETFL, om)) {
back = DK4_SOCKET_RESULT_SUCCESS;
} else {
dk4error_set_idetails(erp, DK4_E_SOCKET_FCNTL, errno);
}
}
} else {
if (0 == (om & O_NONBLOCK)) {
back = DK4_SOCKET_RESULT_SUCCESS;
} else {
om &= (~(O_NONBLOCK));
errno = 0;
if (-1 != fcntl(sock, F_SETFL, om)) {
back = DK4_SOCKET_RESULT_SUCCESS;
} else {
dk4error_set_idetails(erp, DK4_E_SOCKET_FCNTL, errno);
}
}
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
#endif
}
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