80 lines
1.4 KiB
C
80 lines
1.4 KiB
C
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#include <sys/cdefs.h>
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#include "namespace.h"
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#include <errno.h>
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#include <stdio.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/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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#ifdef __weak_alias
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__weak_alias(shutdown, _shutdown)
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#endif
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#define DEBUG 0
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static int _tcp_shutdown(int sock, int how);
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static int _uds_shutdown(int sock, int how);
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int shutdown(int sock, int how)
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{
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int r;
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struct sockaddr_un uds_addr;
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nwio_tcpconf_t tcpconf;
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r= ioctl(sock, NWIOGTCPCONF, &tcpconf);
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if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
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{
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if (r == -1)
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{
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/* Bad file descriptor */
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return -1;
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}
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return _tcp_shutdown(sock, how);
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}
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r= ioctl(sock, NWIOGUDSADDR, &uds_addr);
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if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
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{
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if (r == -1)
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{
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/* Bad file descriptor */
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return -1;
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}
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return _uds_shutdown(sock, how);
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}
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#if DEBUG
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fprintf(stderr, "shutdown: not implemented for fd %d\n", sock);
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#endif
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errno= ENOSYS;
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return -1;
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}
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static int _tcp_shutdown(int sock, int how)
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{
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int r;
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if (how == SHUT_WR || how == SHUT_RDWR)
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{
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r= ioctl(sock, NWIOTCPSHUTDOWN, NULL);
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if (r == -1)
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return -1;
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if (how == SHUT_WR)
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return 0;
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}
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/* We can't shutdown the read side of the socket. */
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errno= ENOSYS;
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return -1;
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}
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static int _uds_shutdown(int sock, int how)
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{
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return ioctl(sock, NWIOSUDSSHUT, &how);
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}
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