73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*****************************************************************************
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*
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* NCSA DTM version 2.3
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* May 1, 1992
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*
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* NCSA DTM Version 2.3 source code and documentation are in the public
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* domain. Specifically, we give to the public domain all rights for future
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* licensing of the source code, all resale rights, and all publishing rights.
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*
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* We ask, but do not require, that the following message be included in all
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* derived works:
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*
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* Portions developed at the National Center for Supercomputing Applications at
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* the University of Illinois at Urbana-Champaign.
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*
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* THE UNIVERSITY OF ILLINOIS GIVES NO WARRANTY, EXPRESSED OR IMPLIED, FOR THE
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* SOFTWARE AND/OR DOCUMENTATION PROVIDED, INCLUDING, WITHOUT LIMITATION,
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* WARRANTY OF MERCHANTABILITY AND WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE
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*
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*****************************************************************************/
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#ifndef UIO_H
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#define UIO_H
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#include <sys/types.h>
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struct iovec {
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void * iov_base;
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long int iov_len;
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};
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struct uio {
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struct iovec *uio_iov;
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long int uio_iovcnt;
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off_t uio_offset;
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long int uio_segflg;
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short uio_fmode;
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int uio_resid;
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};
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struct msghdr {
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void * msg_name; /* optional address */
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long int msg_namelen; /* size of address */
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struct iovec *msg_iov; /* scatter/gather array */
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long int msg_iovlen; /* # elements in msg_iov */
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void * msg_accrights; /* access rights sent/received */
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long int msg_accrightslen;
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};
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#ifndef EFAULT
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#define EFAULT 14 /* for UNIX compability */
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#endif
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enum uio_rw { UIO_READ, UIO_WRITE };
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/*
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* Segment flag values (should be enum).
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*/
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#define UIO_USERSPACE 0 /* from user data space */
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#define UIO_SYSSPACE 1 /* from system space */
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#define UIO_USERISPACE 2 /* from user I space */
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#if defined(__STDC__) | defined (_STDC_)
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extern long int readv(int ,struct iovec *,int );
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extern long int writev(int ,struct iovec *,int );
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extern long int recvmsg(int ,struct msghdr *,int );
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extern long int sendmsg(int ,struct msghdr *,int );
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#endif /* defined(__STDC__) */
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#endif /* UIO_H */
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