28 lines
466 B
C
28 lines
466 B
C
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/* $Source$
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* $State$
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* $Revision$
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*/
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#include <fcntl.h>
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#include "libsys.h"
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/*
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* Say whether a particular fd is currently open in text mode and has just
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* hit an MS-DOS end-of-file character (^Z).
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*/
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int _sys_iseof(int fd)
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{
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int reqbegfd = fd & ~_FDVECMASK;
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struct _fdmodes *p = &_sys_fdmodes;
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_fdvec_t mask;
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while (p->begfd != reqbegfd)
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{
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p = p->next;
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if (!p)
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return 0;
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}
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mask = (_fdvec_t)1 << (fd & _FDVECMASK);
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return p->eofvec & mask;
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}
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