Socket.cxx

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#include <cstdlib>
#include <cstdint>
#include <sys/socket.h>
#include <sys/stat.h>
 
#include "Devtab.hxx"
#include "Socket.hxx"
#include "can_ioctl.h"
 
ssize_t Socket::read(File *file, void *buf, size_t count)
{
    ssize_t result = ::recv(fd_lookup(file), buf, count, 0);
    if (result < 0)
    {
        return -errno;
    }
    return result;
}
 
ssize_t Socket::write(File *file, const void *buf, size_t count)
{
    ssize_t result = ::send(fd_lookup(file), buf, count, 0);
    if (result < 0)
    {
        return -errno;
    }
    return result;
}
 
int Socket::ioctl(File *file, unsigned long int key, unsigned long data)
{
    return -1;
}
 
bool Socket::select(File *file, int mode)
{
    bool retval = false;
 
    return retval;
}
 
extern "C"
{
int socket(int domain, int type, int protocol)
    __attribute__ ((weak));
 
int bind(int socket, const struct sockaddr *address, socklen_t address_len)
    __attribute__ ((weak));
 
int listen(int socket, int backlog)
    __attribute__ ((weak));
 
int accept(int socket, struct sockaddr *address, socklen_t *address_len)
    __attribute__ ((weak));
 
int connect(int socket, const struct sockaddr *address, socklen_t address_len)
    __attribute__ ((weak));
 
ssize_t recv(int socket, void *buffer, size_t length, int flags)
    __attribute__ ((weak));
 
ssize_t send(int socket, const void *buffer, size_t length, int flags)
    __attribute__ ((weak));
 
int setsockopt(int socket, int level, int option_name,
               const void *option_value, socklen_t option_len)
    __attribute__ ((weak));
 
int getsockopt(int socket, int level, int option_name,
               void *option_value, socklen_t *option_len)
    __attribute__ ((weak));
 
int socket(int domain, int type, int protocol)
{
    errno = EINVAL;
    return -1;
}
 
int bind(int socket, const struct sockaddr *address, socklen_t address_len)
{
    errno = EINVAL;
    return -1;
}
 
int listen(int socket, int backlog)
{
    errno = EINVAL;
    return -1;
}
 
int accept(int socket, struct sockaddr *address, socklen_t *address_len)
{
    errno = EINVAL;
    return -1;
}
 
int connect(int socket, const struct sockaddr *address, socklen_t address_len)
{
    errno = EINVAL;
    return -1;
}
 
ssize_t recv(int socket, void *buffer, size_t length, int flags)
{
    errno = EINVAL;
    return -1;
}
 
ssize_t send(int socket, const void *buffer, size_t length, int flags)
{
    errno = EINVAL;
    return -1;
}
 
int setsockopt(int socket, int level, int option_name,
               const void *option_value, socklen_t option_len)
{
    errno = EINVAL;
    return -1;
}
 
int getsockopt(int socket, int level, int option_name,
               void *option_value, socklen_t *option_len)
{
    errno = EINVAL;
    return -1;
}
} /* extern "C" */