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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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unixSyscall
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mknod.c
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1988-08-07
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/*
* mknod.c --
*
* Procedure to map from Unix mknod system call to Sprite.
*
* Copyright (C) 1986 Regents of the University of California
* All rights reserved.
*/
#ifndef lint
static char rcsid[] = "$Header: mknod.c,v 1.3 88/06/29 15:41:05 ouster Exp $ SPRITE (Berkeley)";
#endif not lint
#include "sprite.h"
#include "fs.h"
#include "compatInt.h"
#include <errno.h>
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>
/*
*----------------------------------------------------------------------
*
* mknod --
*
* Procedure to map from Unix mkdir system call to Sprite Fs_MakeDevice.
* Unfortunately, this doesn't map from Unix land device types to
* Sprite device types. This means a tar of /dev on a UNIX system
* will not be recreated correctly on a Sprite system, unless the
* tar program itself is fixed.
*
* Results:
* UNIX_ERROR is returned upon error, with the actual error code
* stored in errno. Otherwise UNIX_SUCCESS is returned.
*
* Side effects:
* Creates a special file used to refer to a device.
*
*----------------------------------------------------------------------
*/
int
mknod(pathName, mode, dev)
char *pathName; /* The name of the directory to create */
int mode; /* Permission mask plus type */
int dev; /* Specifies minor and major dev numbers */
{
ReturnStatus status; /* result returned by Fs_Open */
int streamID;
switch (mode & S_IFMT) {
case S_IFREG:
status = Fs_Open(pathName, FS_CREATE, mode & 0777, &streamID);
if (status == SUCCESS) {
(void)close(streamID);
}
break;
case S_IFBLK:
case S_IFCHR: {
Fs_Device device;
device.serverID = FS_LOCALHOST_ID;
device.type = major(dev);
device.unit = minor(dev);
status = Fs_MakeDevice(pathName, &device, mode & 0777);
break;
}
default:
errno = EINVAL;
return(UNIX_ERROR);
}
if (status != SUCCESS) {
errno = Compat_MapCode(status);
return(UNIX_ERROR);
} else {
return(UNIX_SUCCESS);
}
}