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Amiga Format CD 38
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Amiga Format CD38 (1999-03-15)(Future Publishing)(GB)(Track 1 of 3)[!][issue 1999-04].iso
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-in_the_mag-
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reader_requests
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dice_v3.15
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lib
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fd
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getfh.c
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C/C++ Source or Header
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1999-01-26
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673b
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39 lines
/*
* GETFH.C
*
* (c)Copyright 1992-1997 Obvious Implementations Corp. Redistribution and
* use is allowed under the terms of the DICE-LICENSE FILE,
* DICE-LICENSE.TXT.
*/
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
_IOFDS *
__getfh(ifd)
int ifd;
{
_IOFDS *d;
short fd = ifd;
if(ifd == (int)stdin)d = &_IoStaticFD[0];
else if (ifd == (int)stdout)d = &_IoStaticFD[1];
else if (ifd == (int)stderr)d = &_IoStaticFD[2];
else if ((unsigned)fd >= _IoFDLimit) {
errno = EBADF;
return(NULL);
}
else d = _IoFD + fd;
if ((d->fd_Flags & O_ISOPEN) == 0) {
errno = EBADF;
return(NULL);
}
return(d);
}