/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
#include "stdio.h"
#include "string.h"
#include "errno.h"
#include "sys/types.h"
#include "stdlib.h"
#include "lp.h"
#include "printers.h"
extern struct {
char *v;
short len,
okremote;
} prtrheadings[];
/*
* getpentry() - EXTRACT ONE PRINTER ENTRY FROM DISK FILE
*/
char *
getpentry(char *name, int want_fld)
{
static long lastdir = -1;
char buf[BUFSIZ];
int fld;
int fd;
register char * p;
register char * path;
int isNameAll;
char * option_entry = NULL;
if (!name || !*name) {
errno = EINVAL;
return (0);
}
/*
* Getting ``all''? If so, jump into the directory
* wherever we left off.
*/
isNameAll = STREQU(NAME_ALL, name);
for (; ; ) {
/*
* fix for bug 1117241
* occasionally when a printer is removed, a printer directory
* is left behind, but the CONFIGFILE is removed. In this
* case this directory terminates the search for additional
* printers as we have been returning 0 in this case.
* Now, we loop back and try the next directory until
* we have no more directories or we find a directory with
* a CONFIGFILE
*/
if (isNameAll) {
if (!(name = next_dir(Lp_A_Printers, &lastdir)))
return (0);
} else
lastdir = -1;
/*
* Get the printer configuration information.
*/
path = getprinterfile(name, CONFIGFILE);
if (!path) {
if (isNameAll)
Free(name);
return (0);
}
if ((fd = open_locked(path, "r", 0)) < 0) {
Free(path);
/*
* go around to loop again for
* NAME_ALL case
*/
if (!isNameAll) /* fix for bug 1117241 */
return (0);
else
Free(name);
}
else
break;
}
Free(path);
/*
* Read the file.
*/
errno = 0;
while (fdgets(buf, BUFSIZ, fd) != NULL) {
buf[strlen(buf) - 1] = 0;
for (fld = 0; fld < PR_MAX; fld++)
if (prtrheadings[fld].v &&
prtrheadings[fld].len &&
STRNEQU(
buf,
prtrheadings[fld].v,
prtrheadings[fld].len)) {
p = buf + prtrheadings[fld].len;
while (*p && *p == ' ')
p++;
break;
}
/*
* To allow future extensions to not impact applications
* using old versions of this routine, ignore strange
* fields.
*/
if (fld >= PR_MAX)
continue;
if (fld == want_fld) {
if ((option_entry = strdup(p)) == NULL) {
return (0);
}
}
}
if (errno != 0) {
int save_errno = errno;
close(fd);
errno = save_errno;
return (0);
}
close(fd);
return (option_entry);
}