94 lines
2.2 KiB
C
Executable File
94 lines
2.2 KiB
C
Executable File
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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/*LINTLIBRARY*/
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#ident "@(#)devtype.c 1.7 93/03/09 SMI" /* SVr4.0 1.3.4.2 */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <pkgdev.h>
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#include <pkglib.h>
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extern char *devattr(char *device, char *attribute); /* libadm.a */
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int
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devtype(char *alias, struct pkgdev *devp)
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{
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char *name;
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devp->mntflg = 0;
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devp->name = alias;
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devp->dirname = devp->pathname = devp->mount = NULL;
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devp->fstyp = devp->cdevice = devp->bdevice = devp->norewind = NULL;
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devp->rdonly = 0;
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devp->capacity = 0;
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/* see if alias represents an existing file */
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if (alias[0] == '/') {
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if (!isdir(alias)) {
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devp->dirname = devp->name;
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return (0);
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}
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}
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/* see if alias represents a mountable device (e.g., a floppy) */
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if ((devp->mount = devattr(alias, "mountpt")) != NULL &&
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devp->mount[0] != NULL) {
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devp->bdevice = devattr(alias, "bdevice");
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if (!devp->bdevice || !devp->bdevice[0]) {
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if (devp->bdevice) {
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free(devp->bdevice);
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devp->bdevice = NULL;
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}
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return (-1);
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}
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devp->dirname = devp->mount;
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} else if (devp->mount) {
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free(devp->mount);
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devp->mount = NULL;
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}
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devp->cdevice = devattr(alias, "cdevice");
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if (devp->cdevice && devp->cdevice[0]) {
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/* check for capacity */
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if (name = devattr(alias, "capacity")) {
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if (name[0])
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devp->capacity = atol(name);
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free(name);
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}
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/* check for norewind device */
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devp->norewind = devattr(alias, "norewind");
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if (devp->norewind && !devp->norewind[0]) {
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free(devp->norewind);
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devp->norewind = NULL;
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}
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/* mountable devices will always have associated raw device */
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return (0);
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}
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if (devp->cdevice) {
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free(devp->cdevice);
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devp->cdevice = NULL;
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}
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/*
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* if it is not a raw device, it must be a directory or a regular file
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*/
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name = devattr(alias, "pathname");
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if (!name || !name[0]) {
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/* Assume a regular file */
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if (name)
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free(name);
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devp->pathname = alias;
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return (0);
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}
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if (!isdir(name))
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devp->dirname = name;
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else
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devp->pathname = name;
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return (0);
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}
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