OpenSolaris_b135/lib/nsswitch/ldap/common/getprinter.c
/*
* 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
*/
/*
* Copyright 2006 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)))"
#define PRINTER_PREFIX "printer-"
#define SUNWPR_PREFIX "sunwpr-"
/*
* Attributes from the following classes:
* printerService
* printerAbstact
* sunPrinter
*/
/*
* Get all attributes.
*/
static const char **printer_attrs = NULL;
/*
* _nss_ldap_printers2str 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.
* In order to be compatible with old data output, the code is commented out
* with NSS_LDAP_PRINTERS. The NSS_LDAP_PRINTERS section is for future
* refrences if it's decided to fix the output format.
*/
static int
_nss_ldap_printers2str(ldap_backend_ptr be, nss_XbyY_args_t *argp)
{
int i, j;
int nss_result;
int buflen = 0, len;
char *buffer = NULL;
char **name, *attrname;
ns_ldap_attr_t *attr;
ns_ldap_result_t *result = be->result;
#ifdef NSS_LDAP_PRINTERS
int slen, plen;
#endif
if (result == NULL)
return (NSS_STR_PARSE_PARSE);
buflen = argp->buf.buflen;
if (argp->buf.result != NULL) {
be->buffer = calloc(1, buflen);
if (be->buffer == NULL)
return (NSS_STR_PARSE_PARSE);
be->buflen = buflen;
buffer = be->buffer;
} else {
buffer = argp->buf.buffer;
(void) memset(argp->buf.buffer, 0, buflen);
}
nss_result = NSS_STR_PARSE_SUCCESS;
#ifdef NSS_LDAP_PRINTERS
slen = strlen(SUNWPR_PREFIX);
plen = strlen(PRINTER_PREFIX);
#endif
/*
* Pick out the printer name and aliases
*/
name = __ns_ldap_getAttr(result->entry, "printer-name");
if (name == NULL || name[0] == NULL) {
nss_result = NSS_STR_PARSE_PARSE;
goto result_printers2str;
}
len = snprintf(buffer, buflen, "%s", name[0]);
TEST_AND_ADJUST(len, buffer, buflen, result_printers2str);
#ifdef NSS_LDAP_PRINTERS
attr = __ns_ldap_getAttrStruct(result->entry, "printer-aliases");
if (attr != NULL && attr->attrvalue != NULL) {
for (i = 0; i < attr->value_count; i++) {
len = snprintf(buffer, buflen, "|%s",
attr->attrvalue[i]);
TEST_AND_ADJUST(len, buffer, buflen,
result_printers2str);
}
}
#endif
/*
* Add the rest of the attributes
*/
for (i = 0; i < result->entry->attr_count; i++) {
attr = getattr(result, i);
if (attr == NULL) {
nss_result = NSS_STR_PARSE_PARSE;
goto result_printers2str;
}
/*
* 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_printers2str;
}
len = snprintf(buffer, buflen, ":%s",
attr->attrvalue[j]);
TEST_AND_ADJUST(len, buffer, buflen,
result_printers2str);
}
} else {
/*
* Skip some attr names
*/
#ifdef NSS_LDAP_PRINTERS
if (strcasecmp(attr->attrname, "printer-name") == 0 ||
strcasecmp(attr->attrname, "dn") == 0 ||
strcasecmp(attr->attrname,
"objectclass") == 0 ||
strcasecmp(attr->attrname,
"printer-uri") == 0 ||
strcasecmp(attr->attrname,
"printer-aliases") == 0)
#else
if (strcasecmp(attr->attrname, "printer-name") == 0)
#endif
continue;
}
/*
* Translate attr name ->key name
*/
if (strcmp(attr->attrname, "sun-printer-bsdaddr")
== 0)
attrname = "bsdaddr";
#ifdef NSS_LDAP_PRINTERS
else if (strcmp(attr->attrname, "printer-info")
== 0)
attrname = "description";
else if (strcmp(attr->attrname, "sunwpr-support")
== 0)
attrname = "itopssupported";
else if (strncmp(attr->attrname, PRINTER_PREFIX, plen)
== 0)
attrname = attr->attrname + plen;
else if (strncmp(attr->attrname, SUNWPR_PREFIX, slen)
== 0)
attrname = attr->attrname + slen;
#endif
else
attrname = attr->attrname;
/*
* The attrname is the key. The attribute
* data is the value.
*/
len = snprintf(buffer, buflen, ":%s=", attrname);
TEST_AND_ADJUST(len, buffer, buflen,
result_printers2str);
for (j = 0; j < attr->value_count; j++) {
int k;
char *kp;
if (attr->attrvalue[j] == NULL) {
*buffer = 0;
nss_result = NSS_STR_PARSE_PARSE;
goto result_printers2str;
}
len = strlen(attr->attrvalue[j]);
if (len < 1) {
*buffer = 0;
nss_result = NSS_STR_PARSE_PARSE;
goto result_printers2str;
}
/*
* 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 == ':')
/* count ':' in value */
k++;
if (j == 0)
/* first time */
len += k;
else
/* add ',' */
len += k + 1;
if (len > buflen) {
nss_result = NSS_STR_PARSE_ERANGE;
goto result_printers2str;
}
if (j > 0)
*buffer++ = ',';
(void) append_attr(buffer,
attr->attrvalue[j]);
buffer += strlen(attr->attrvalue[j]) + k;
buflen -= len;
}
}
if (argp->buf.result != NULL)
be->buflen = strlen(be->buffer);
result_printers2str:
(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;
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_printers2str 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)
{
return ((nss_backend_t *)_nss_ldap_constr(printers_ops,
sizeof (printers_ops)/sizeof (printers_ops[0]), _PRINTERS,
printer_attrs, _nss_ldap_printers2str));
}