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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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
*/
/*
* files/printers_getbyname.c -- "files" backend for
* nsswitch "printers" database.
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
static const char *printers = "/etc/printers.conf";
#pragma weak _nss_files__printers_constr = _nss_files_printers_constr
#include "files_common.h"
#include <stdlib.h>
#include <strings.h>
#include <ctype.h>
static int
check_name(nss_XbyY_args_t *argp, const char *line, int linelen)
{
const char *limit, *linep;
const char *keyp = argp->key.name;
int klen = strlen(keyp);
linep = line;
limit = line + linelen;
/*
* find the name in the namelist a|b|c...:
*/
while (linep+klen < limit && *linep != '|' && *linep != ':') {
if ((strncmp(linep, keyp, klen) == 0) &&
((*(linep + klen) == '|') || (*(linep + klen) == ':'))) {
return (1);
} else {
while (linep < limit && *linep != '|' && *linep != ':')
linep++;
if (linep >= limit || *linep == ':')
return (0);
if (*linep == '|')
linep++;
}
}
return (0);
}
nss_status_t
_nss_files_XY_printer(be, args, filter, check)
files_backend_ptr_t be;
nss_XbyY_args_t *args;
const char *filter; /* advisory, to speed up */
/* string search */
files_XY_check_func check; /* NULL means one-shot, for getXXent */
{
nss_status_t res;
int parsestat;
int (*func)();
if (filter != NULL && *filter == '\0')
return (NSS_NOTFOUND);
if (be->buf == 0 &&
(be->buf = malloc(be->minbuf)) == 0) {
return (NSS_UNAVAIL); /* really panic, malloc failed */
}
if (check != 0 || be->f == 0) {
if ((res = _nss_files_setent(be, 0)) != NSS_SUCCESS) {
return (res);
}
}
res = NSS_NOTFOUND;
/*CONSTCOND*/
while (1) {
char *instr = be->buf;
int linelen;
if ((linelen = _nss_files_read_line(be->f, instr,
be->minbuf)) < 0) {
/* End of file */
args->returnval = 0;
args->returnlen = 0;
break;
}
/* begin at the first non-blank character */
while (isspace(*instr)) {
instr++;
linelen--;
}
/* comment line, skip it. */
if (*instr == '#')
continue;
/* blank line, skip it */
if ((*instr == '\n') || (*instr == '\0'))
continue;
if (filter != 0 && strstr(instr, filter) == 0) {
/*
* Optimization: if the entry doesn't contain the
* filter string then it can't be the entry we want,
* so don't bother looking more closely at it.
*/
continue;
}
args->returnval = 0;
args->returnlen = 0;
if (check != NULL && (*check)(args, instr, linelen) == 0)
continue;
func = args->str2ent;
parsestat = (*func)(instr, linelen, args->buf.result,
args->buf.buffer, args->buf.buflen);
if (parsestat == NSS_STR_PARSE_SUCCESS) {
args->returnval = (args->buf.result != NULL)?
args->buf.result : args->buf.buffer;
args->returnlen = linelen;
res = NSS_SUCCESS;
break;
} else if (parsestat == NSS_STR_PARSE_ERANGE) {
args->erange = 1;
break;
} else if (parsestat == NSS_STR_PARSE_PARSE)
continue;
}
/*
* stayopen is set to 0 by default in order to close the opened
* file. Some applications may break if it is set to 1.
*/
if (check != 0 && !args->stayopen) {
(void) _nss_files_endent(be, 0);
}
return (res);
}
static nss_status_t
getent(be, a)
files_backend_ptr_t be;
void *a;
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
return (_nss_files_XY_printer(be, argp, (const char *)0,
(files_XY_check_func)0));
}
static nss_status_t
getbyname(be, a)
files_backend_ptr_t be;
void *a;
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
return (_nss_files_XY_printer(be, argp, argp->key.name, check_name));
}
static files_backend_op_t printers_ops[] = {
_nss_files_destr,
_nss_files_endent,
_nss_files_setent,
getent,
getbyname
};
/*ARGSUSED*/
nss_backend_t *
_nss_files_printers_constr(dummy1, dummy2, dummy3)
const char *dummy1, *dummy2, *dummy3;
{
return (_nss_files_constr(printers_ops,
sizeof (printers_ops) / sizeof (printers_ops[0]),
printers,
NSS_LINELEN_PRINTERS,
NULL));
}
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