4f294c247f
This patch mainly copies and modifies files existing in the current libc implementing minix specific functions. To keep consisten with the NetBSD libc, we remove namespace stubs and we use "namespace.h" and weak links.
135 lines
2.6 KiB
C
135 lines
2.6 KiB
C
#include <sys/cdefs.h>
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#include <minix/ansi.h>
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#include "namespace.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <net/netlib.h>
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#include <net/gen/in.h>
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#include <net/gen/tcp.h>
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#include <net/gen/tcp_io.h>
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#include <net/gen/udp.h>
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#include <net/gen/udp_io.h>
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#define DEBUG 0
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static int _tcp_accept(int sock, struct sockaddr *_RESTRICT address,
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socklen_t *_RESTRICT address_len);
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static int _uds_accept(int sock, struct sockaddr *_RESTRICT address,
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socklen_t *_RESTRICT address_len);
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int accept(int sock, struct sockaddr *_RESTRICT address,
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socklen_t *_RESTRICT address_len)
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{
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int r;
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nwio_udpopt_t udpopt;
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r= _tcp_accept(sock, address, address_len);
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if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
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return r;
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r= _uds_accept(sock, address, address_len);
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if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
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return r;
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/* Unfortunately, we have to return EOPNOTSUPP for a socket that
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* does not support accept (such as a UDP socket) and ENOTSOCK for
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* filedescriptors that do not refer to a socket.
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*/
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r= ioctl(sock, NWIOGUDPOPT, &udpopt);
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if (r == 0)
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{
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/* UDP socket */
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errno= EOPNOTSUPP;
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return -1;
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}
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if ((errno == ENOTTY || errno == EBADIOCTL))
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{
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errno= ENOTSOCK;
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return -1;
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}
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return r;
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}
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static int _tcp_accept(int sock, struct sockaddr *_RESTRICT address,
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socklen_t *_RESTRICT address_len)
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{
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int r, s1, t_errno;
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tcp_cookie_t cookie;
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s1= open(TCP_DEVICE, O_RDWR);
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if (s1 == -1)
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return s1;
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r= ioctl(s1, NWIOGTCPCOOKIE, &cookie);
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if (r == -1)
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{
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t_errno= errno;
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close(s1);
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errno= t_errno;
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return -1;
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}
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r= ioctl(sock, NWIOTCPACCEPTTO, &cookie);
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if (r == -1)
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{
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t_errno= errno;
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close(s1);
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errno= t_errno;
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return -1;
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}
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if (address != NULL)
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getpeername(s1, address, address_len);
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return s1;
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}
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static int _uds_accept(int sock, struct sockaddr *_RESTRICT address,
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socklen_t *_RESTRICT address_len)
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{
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int s1;
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int r;
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struct sockaddr_un uds_addr;
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socklen_t len;
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memset(&uds_addr, '\0', sizeof(struct sockaddr_un));
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r= ioctl(sock, NWIOGUDSADDR, &uds_addr);
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if (r == -1) {
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return r;
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}
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if (uds_addr.sun_family != AF_UNIX) {
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errno= EINVAL;
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return -1;
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}
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len= *address_len;
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if (len > sizeof(struct sockaddr_un))
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len = sizeof(struct sockaddr_un);
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memcpy(address, &uds_addr, len);
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*address_len= len;
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s1= open(UDS_DEVICE, O_RDWR);
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if (s1 == -1)
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return s1;
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r= ioctl(s1, NWIOSUDSACCEPT, address);
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if (r == -1) {
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int ioctl_errno = errno;
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close(s1);
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errno = ioctl_errno;
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return r;
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}
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return s1;
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}
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