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50cf10dfa4
The _IOR anbd _IOW macros cast the sizeof of their third arg uselessly to long. The _IO definitions have been taken from BSD in 1995 and never changed again. The fact that the sizeof() gets cast to long is probably a remnant from the past when the stuff was supposed to be used on 16 bit machines, but the value was supposed to be 32 bit. Given that the values are not supposed to be ever bigger than 32 bit, we drop the (long) cast. Compare with current FreeBSD, which does not cast at all. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
77 lines
3.6 KiB
C
77 lines
3.6 KiB
C
/* asm/socket.h
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _ASM_SOCKET_H
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#define _ASM_SOCKET_H
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#include <cygwin/if.h>
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#define IOCPARM_MASK 0x7f /* parameters must be < 128 bytes */
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#define IOC_VOID 0x20000000 /* no parameters */
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#define IOC_OUT 0x40000000 /* copy out parameters */
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#define IOC_IN 0x80000000 /* copy in parameters */
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#define _IO(x,y) (IOC_VOID|(x<<8)|y)
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#define _IOR(x,y,t) (IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y)
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#define _IOW(x,y,t) (IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y)
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#define SIOCATMARK _IOR('s', 7, long) /* at oob mark? */
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#define FIONREAD _IOR('f', 127, long) /* get # bytes to read */
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#define SIOCINQ FIONREAD
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/* Compatible with termios.h */
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#define FIONBIO 0x8004667e /* set/clear non-blocking i/o */
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#define FIOASYNC _IOW('f', 125, long) /* set/clear async i/o */
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#define SIOCSHIWAT _IOW('s', 0, long) /* set high watermark */
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#define SIOCGHIWAT _IOR('s', 1, long) /* get high watermark */
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#define SIOCSLOWAT _IOW('s', 2, long) /* set low watermark */
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#define SIOCGLOWAT _IOR('s', 3, long) /* get low watermark */
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/* Needed for if queries */
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#define SIOCGIFCONF _IOW('s', 100, struct ifconf) /* get if list */
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#define SIOCGIFFLAGS _IOW('s', 101, struct ifreq) /* Get if flags */
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#define SIOCGIFADDR _IOW('s', 102, struct ifreq) /* Get if addr */
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#define SIOCGIFBRDADDR _IOW('s', 103, struct ifreq) /* Get if broadcastaddr */
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#define SIOCGIFNETMASK _IOW('s', 104, struct ifreq) /* Get if netmask */
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#define SIOCGIFHWADDR _IOW('s', 105, struct ifreq) /* Get hw addr */
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#define SIOCGIFMETRIC _IOW('s', 106, struct ifreq) /* get metric */
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#define SIOCGIFMTU _IOW('s', 107, struct ifreq) /* get MTU size */
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#define SIOCGIFINDEX _IOW('s', 108, struct ifreq) /* get if index */
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#define SIOGIFINDEX SIOCGIFINDEX /* backward compatibility w/ Linux typo. */
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#define SIOCGIFFRNDLYNAM _IOW('s', 109, struct ifreq) /* get friendly if name */
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#define SIOCGIFDSTADDR _IOW('s', 110, struct ifreq) /* Get if dstaddr */
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#define SOL_SOCKET 0xffff /* options for socket level */
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#define SO_DEBUG 0x0001 /* turn on debugging info recording */
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#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
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#define SO_REUSEADDR 0x0004 /* allow local address reuse */
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#define SO_KEEPALIVE 0x0008 /* keep connections alive */
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#define SO_DONTROUTE 0x0010 /* just use interface addresses */
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#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
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#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
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#define SO_LINGER 0x0080 /* linger on close if data present */
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#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
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#define SO_DONTLINGER (unsigned int)(~SO_LINGER)
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#define SO_PEERCRED 0x0200 /* same as getpeereid */
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#define SO_PASSCRED 0x0400 /* enable receiving of credentials */
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/*
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* Additional options.
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*/
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#define SO_SNDBUF 0x1001 /* send buffer size */
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#define SO_RCVBUF 0x1002 /* receive buffer size */
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#define SO_SNDLOWAT 0x1003 /* send low-water mark */
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#define SO_RCVLOWAT 0x1004 /* receive low-water mark */
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#define SO_SNDTIMEO 0x1005 /* send timeout */
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#define SO_RCVTIMEO 0x1006 /* receive timeout */
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#define SO_ERROR 0x1007 /* get error status and clear */
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#define SO_TYPE 0x1008 /* get socket type */
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#endif /* _ASM_SOCKET_H */
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