getprinter.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#pragma weak _nss_ldap__printers_constr = _nss_ldap_printers_constr
#include "ldap_common.h"
static void append_attr(char *buf, char *attr);
/* printer attributes filters */
#define _F_GETPRINTERBYNAME \
"(&(objectClass=sunPrinter)(|(printer-name=%s)(printer-aliases=%s)))"
/*
* Attributes from the following classes:
* printerService
* printerAbstact
* sunPrinter
*/
/*
* Get all attributes.
*/
static const char **printer_attrs = NULL;
/*
* _nss_ldap_printers2ent is the data marshaling method for the printers
* getXbyY backend processes. This method is called after a successful
* ldap search has been performed. This method will parse the ldap search
* values into argp->buf.buffer. Three error conditions are expected and
* returned to nsswitch.
*/
static int
_nss_ldap_printers2ent(ldap_backend_ptr be, nss_XbyY_args_t *argp)
{
int i, j;
int nss_result;
int buflen = (int)0;
unsigned long len = 0L;
char *cp = (char *)NULL;
char *buffer = (char *)NULL;
ns_ldap_attr_t *attr;
ns_ldap_result_t *result = be->result;
buffer = argp->buf.buffer;
buflen = (size_t)argp->buf.buflen;
if (!argp->buf.result) {
nss_result = (int)NSS_STR_PARSE_ERANGE;
goto result_printers2ent;
}
nss_result = (int)NSS_STR_PARSE_SUCCESS;
(void) memset(argp->buf.buffer, 0, buflen);
/* Make sure our buffer stays NULL terminated */
buflen--;
attr = getattr(result, 0);
if (attr == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_printers2ent;
}
/*
* Pick out the printer name.
*/
for (i = 0; i < result->entry->attr_count; i++) {
attr = getattr(result, i);
if (attr == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_printers2ent;
}
if (strcasecmp(attr->attrname, "printer-name") == 0) {
len = strlen(attr->attrvalue[0]);
if (len < 1 || (attr->attrvalue[0] == '\0')) {
*buffer = 0;
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_printers2ent;
}
if (len > buflen) {
nss_result = (int)NSS_STR_PARSE_ERANGE;
goto result_printers2ent;
}
(void) strcpy(buffer, attr->attrvalue[0]);
}
}
/*
* Should never happen since it is mandatory but bail if
* we don't have a printer name.
*/
if (buffer[0] == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_printers2ent;
}
/*
* Add the rest of the attributes
*/
for (i = 0; i < result->entry->attr_count; i++) {
attr = getattr(result, i);
if (attr == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_printers2ent;
}
/*
* The attribute contains key=value
*/
if (strcasecmp(attr->attrname, "sun-printer-kvp") == 0) {
for (j = 0; j < attr->value_count; j++) {
len = strlen(attr->attrvalue[j]);
if (len < 1 ||
(attr->attrvalue[j] == '\0')) {
*buffer = 0;
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_printers2ent;
}
len += strlen(buffer) + 1; /* 1 for ':' */
if (len > buflen) {
nss_result = (int)NSS_STR_PARSE_ERANGE;
goto result_printers2ent;
}
if ((cp = strrchr(buffer, '\0')) != NULL) {
*cp = ':';
(void) strcat(buffer,
attr->attrvalue[j]);
}
}
} else {
/*
* Skip the printer name
*/
if (strcmp(attr->attrname, "printer-name") == 0) {
continue;
}
/*
* Translate sun-printer-bsdaddr -> bsdaddr
*/
if (strcmp(attr->attrname, "sun-printer-bsdaddr") ==
0) {
if (attr->attrname != NULL) {
free(attr->attrname);
}
attr->attrname = strdup("bsdaddr");
}
/*
* The attribute name is the key. The attribute
* data is the value.
*/
for (j = 0; j < attr->value_count; j++) {
int k;
char *kp;
len = strlen(attr->attrvalue[j]);
if (len < 1 ||
(attr->attrvalue[j] == '\0')) {
*buffer = 0;
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_printers2ent;
}
/*
* Add extra for any colons which need to
* be backslashed plus ending ':' or ','.
*/
k = 0;
for (kp = attr->attrvalue[j]; *kp != NULL; kp++)
if (*kp == ':')
k++;
len += strlen(buffer) + k;
if (j == 0) {
len += strlen(attr->attrname) + 1;
}
if (len > buflen) {
nss_result = (int)NSS_STR_PARSE_ERANGE;
goto result_printers2ent;
}
if ((cp = strrchr(buffer, '\0')) != NULL) {
if (j == 0) {
*cp = ':';
(void) strcat(buffer,
attr->attrname);
(void) strcat(buffer, "=");
} else {
*cp = ',';
}
(void) append_attr(buffer,
attr->attrvalue[j]);
}
}
}
}
#ifdef DEBUG
(void) fprintf(stdout, "\n[getprinter.c: _nss_ldap_printers2ent]\n");
(void) fprintf(stdout, " printers: [%s]\n", buffer);
#endif
result_printers2ent:
(void) __ns_ldap_freeResult(&be->result);
return ((int)nss_result);
}
/*
* Attributes which contain colons must be backslashed.
*/
static void
append_attr(char *buf, char *attr)
{
char *cp, *bp;
if (strchr(attr, ':') == NULL) {
(void) strcat(buf, attr);
return;
}
bp = buf + strlen(buf);
cp = attr;
while (*cp != NULL) {
if (*cp == ':') {
*bp++ = '\\';
}
*bp++ = *cp++;
}
}
/*
* getbyname gets printer attributes by printer name. This function
* constructs an ldap search filter using the printer name invocation
* parameter and the getprinterbyname search filter defined. Once the
* filter is constructed, we search for matching entries and marshal
* the data results into argp->buf.buffer for the frontend process.
* The function * _nss_ldap_printers2ent performs the data marshaling.
*/
static nss_status_t
getbyname(ldap_backend_ptr be, void *a)
{
char printername[BUFSIZ];
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
char searchfilter[SEARCHFILTERLEN];
(void) strncpy(printername, argp->key.name, BUFSIZ);
if (snprintf(searchfilter, SEARCHFILTERLEN,
_F_GETPRINTERBYNAME, printername, printername) < 0)
return ((nss_status_t)NSS_NOTFOUND);
return ((nss_status_t)_nss_ldap_lookup(be, argp,
_PRINTERS, searchfilter, NULL, NULL, NULL));
}
static ldap_backend_op_t printers_ops[] = {
_nss_ldap_destr,
_nss_ldap_endent,
_nss_ldap_setent,
_nss_ldap_getent,
getbyname,
};
/*
* _nss_ldap_printers_constr is where life begins. This function calls
* the generic ldap constructor function to define and build the abstract
* data types required to support ldap operations.
*/
/*ARGSUSED0*/
nss_backend_t *
_nss_ldap_printers_constr(const char *dummy1, const char *dummy2,
const char *dummy3)
{
#ifdef DEBUG
(void) fprintf(stdout,
"\n[getprinterent.c: _nss_ldap_printers_constr]\n");
#endif
return ((nss_backend_t *)_nss_ldap_constr(printers_ops,
sizeof (printers_ops)/sizeof (printers_ops[0]), _PRINTERS,
printer_attrs, _nss_ldap_printers2ent));
}