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/*
Unix SMB/CIFS implementation.
printcap parsing
Copyright (C) Karl Auer 1993-1998
Re-working by Martin Kiff, 1994
Re-written again by Andrew Tridgell
Modified for SVID support by Norm Jacobs, 1997
Modified for CUPS support by Michael Sweet, 1999
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified to call SVID/XPG4 support if printcap name is set to "lpstat"
* in smb.conf under Solaris.
*
* Modified to call CUPS support if printcap name is set to "cups"
* in smb.conf.
*
* Modified to call iPrint support if printcap name is set to "iprint"
* in smb.conf.
*/
#include "includes.h"
#include "printing/pcap.h"
#include "printer_list.h"
struct pcap_cache {
char *name;
char *comment;
char *location;
struct pcap_cache *next;
};
bool pcap_cache_add_specific(struct pcap_cache **ppcache, const char *name, const char *comment, const char *location)
{
struct pcap_cache *p;
if (name == NULL || ((p = SMB_MALLOC_P(struct pcap_cache)) == NULL))
return false;
p->name = SMB_STRDUP(name);
p->comment = (comment && *comment) ? SMB_STRDUP(comment) : NULL;
p->location = (location && *location) ? SMB_STRDUP(location) : NULL;
DEBUG(11,("pcap_cache_add_specific: Adding name %s info %s, location: %s\n",
p->name, p->comment ? p->comment : "",
p->location ? p->location : ""));
p->next = *ppcache;
*ppcache = p;
return true;
}
void pcap_cache_destroy_specific(struct pcap_cache **pp_cache)
{
struct pcap_cache *p, *next;
for (p = *pp_cache; p != NULL; p = next) {
next = p->next;
SAFE_FREE(p->name);
SAFE_FREE(p->comment);
SAFE_FREE(p->location);
SAFE_FREE(p);
}
*pp_cache = NULL;
}
bool pcap_cache_replace(const struct pcap_cache *pcache)
{
const struct pcap_cache *p;
NTSTATUS status;
time_t t = time_mono(NULL);
status = printer_list_mark_reload();
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to mark printer list for reload!\n"));
return false;
}
for (p = pcache; p; p = p->next) {
status = printer_list_set_printer(talloc_tos(), p->name,
p->comment, p->location, t);
if (!NT_STATUS_IS_OK(status)) {
return false;
}
}
status = printer_list_clean_old();
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to cleanup printer list!\n"));
return false;
}
return true;
}
void pcap_cache_reload(struct tevent_context *ev,
struct messaging_context *msg_ctx,
void (*post_cache_fill_fn)(struct tevent_context *,
struct messaging_context *))
{
const char *pcap_name = lp_printcapname();
bool pcap_reloaded = False;
bool post_cache_fill_fn_handled = false;
struct pcap_cache *pcache = NULL;
DEBUG(3, ("reloading printcap cache\n"));
if (!lp_load_printers()) {
DBG_NOTICE("skipping reload - load printers disabled\n");
return;
}
/* only go looking if a printcap name is supplied */
if (pcap_name == NULL || *pcap_name == 0) {
DEBUG(0, ("No printcap file name configured!\n"));
return;
}
#ifdef HAVE_CUPS
if (strequal(pcap_name, "cups")) {
pcap_reloaded = cups_cache_reload(ev, msg_ctx,
post_cache_fill_fn);
/*
* cups_cache_reload() is async and calls post_cache_fill_fn()
* on successful completion
*/
post_cache_fill_fn_handled = true;
goto done;
}
#endif
#ifdef HAVE_IPRINT
if (strequal(pcap_name, "iprint")) {
pcap_reloaded = iprint_cache_reload(&pcache);
goto done;
}
#endif
#if defined(SYSV) || defined(HPUX)
if (strequal(pcap_name, "lpstat")) {
pcap_reloaded = sysv_cache_reload(&pcache);
goto done;
}
#endif
#ifdef AIX
if (strstr_m(pcap_name, "/qconfig") != NULL) {
pcap_reloaded = aix_cache_reload(&pcache);
goto done;
}
#endif
pcap_reloaded = std_pcap_cache_reload(pcap_name, &pcache);
/* Fix silly compiler warning about done not being used if none of the above
* ifdefs are used */
#if defined(HAVE_CUPS) || defined(HAVE_IPRINT) || defined(SYSV) || defined(HPUX) || defined(AIX)
done:
#endif
DEBUG(3, ("reload status: %s\n", (pcap_reloaded) ? "ok" : "error"));
if ((pcap_reloaded) && (post_cache_fill_fn_handled == false)) {
/* cleanup old entries only if the operation was successful,
* otherwise keep around the old entries until we can
* successfully reload */
if (!pcap_cache_replace(pcache)) {
DEBUG(0, ("Failed to replace printer list!\n"));
}
if (post_cache_fill_fn != NULL) {
post_cache_fill_fn(ev, msg_ctx);
}
}
pcap_cache_destroy_specific(&pcache);
return;
}
/***************************************************************************
run a function on each printer name in the printcap file.
***************************************************************************/
void pcap_printer_fn_specific(const struct pcap_cache *pc,
void (*fn)(const char *, const char *, const char *, void *),
void *pdata)
{
const struct pcap_cache *p;
for (p = pc; p != NULL; p = p->next)
fn(p->name, p->comment, p->location, pdata);
return;
}
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