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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
- * This module contains code to parse and cache printcap data, possibly
- * in concert with the CUPS/SYSV/AIX-specific code found elsewhere.
- *
- * The way this module looks at the printcap file is very simplistic.
- * Only the local printcap file is inspected (no searching of NIS
- * databases etc).
- *
- * There are assumed to be one or more printer names per record, held
- * as a set of sub-fields separated by vertical bar symbols ('|') in the
- * first field of the record. The field separator is assumed to be a colon
- * ':' and the record separator a newline.
- *
- * Lines ending with a backspace '\' are assumed to flag that the following
- * line is a continuation line so that a set of lines can be read as one
- * printcap entry.
- *
- * A line stating with a hash '#' is assumed to be a comment and is ignored
- * Comments are discarded before the record is strung together from the
- * set of continuation lines.
- *
- * Opening a pipe for "lpc status" and reading that would probably
- * be pretty effective. Code to do this already exists in the freely
- * distributable PCNFS server code.
- *
* Modified to call SVID/XPG4 support if printcap name is set to "lpstat"
* in smb.conf under Solaris.
*
*/
#include "includes.h"
+#include "printing/pcap.h"
+#include "printer_list.h"
-
-typedef struct pcap_cache {
+struct pcap_cache {
char *name;
char *comment;
struct pcap_cache *next;
-} pcap_cache_t;
+};
-static pcap_cache_t *pcap_cache = NULL;
-
-BOOL pcap_cache_add(const char *name, const char *comment)
+bool pcap_cache_add_specific(struct pcap_cache **ppcache, const char *name, const char *comment)
{
- pcap_cache_t *p;
+ struct pcap_cache *p;
- if (name == NULL || ((p = SMB_MALLOC_P(pcap_cache_t)) == NULL))
- return False;
+ 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->next = pcap_cache;
- pcap_cache = p;
+ DEBUG(11,("pcap_cache_add_specific: Adding name %s info %s\n",
+ p->name, p->comment ? p->comment : ""));
+
+ p->next = *ppcache;
+ *ppcache = p;
- return True;
+ return true;
}
-static void pcap_cache_destroy(pcap_cache_t *cache)
+void pcap_cache_destroy_specific(struct pcap_cache **pp_cache)
{
- pcap_cache_t *p, *next;
+ struct pcap_cache *p, *next;
- for (p = cache; p != NULL; p = next) {
+ for (p = *pp_cache; p != NULL; p = next) {
next = p->next;
SAFE_FREE(p->name);
SAFE_FREE(p->comment);
SAFE_FREE(p);
}
+ *pp_cache = NULL;
+}
+
+bool pcap_cache_add(const char *name, const char *comment)
+{
+ NTSTATUS status;
+ time_t t = time_mono(NULL);
+
+ status = printer_list_set_printer(talloc_tos(), name, comment, t);
+ return NT_STATUS_IS_OK(status);
}
-BOOL pcap_cache_loaded(void)
+bool pcap_cache_loaded(void)
{
- return (pcap_cache != NULL);
+ NTSTATUS status;
+ time_t last;
+
+ status = printer_list_get_last_refresh(&last);
+ return NT_STATUS_IS_OK(status);
}
-void pcap_cache_reload(void)
+void pcap_cache_replace(const struct pcap_cache *pcache)
+{
+ const struct pcap_cache *p;
+
+ for (p = pcache; p; p = p->next) {
+ pcap_cache_add(p->name, p->comment);
+ }
+}
+
+void pcap_cache_reload(struct tevent_context *ev,
+ struct messaging_context *msg_ctx)
{
const char *pcap_name = lp_printcapname();
- BOOL pcap_reloaded = False;
- pcap_cache_t *tmp_cache = NULL;
- XFILE *pcap_file;
- char *pcap_line;
+ bool pcap_reloaded = False;
+ NTSTATUS status;
DEBUG(3, ("reloading printcap cache\n"));
return;
}
- tmp_cache = pcap_cache;
- pcap_cache = NULL;
+ if (!printer_list_need_refresh()) {
+ /* has been just refeshed, skip */
+ DEBUG(5, ("Refresh just happend, skipping.\n"));
+ return;
+ }
+
+ status = printer_list_mark_reload();
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to mark printer list for reload!\n"));
+ return;
+ }
#ifdef HAVE_CUPS
if (strequal(pcap_name, "cups")) {
- pcap_reloaded = cups_cache_reload();
+ pcap_reloaded = cups_cache_reload(ev, msg_ctx);
goto done;
}
#endif
}
#endif
- /* handle standard printcap - moved from pcap_printer_fn() */
-
- if ((pcap_file = x_fopen(pcap_name, O_RDONLY, 0)) == NULL) {
- DEBUG(0, ("Unable to open printcap file %s for read!\n", pcap_name));
- goto done;
- }
-
- for (; (pcap_line = fgets_slash(NULL, sizeof(pstring), pcap_file)) != NULL; safe_free(pcap_line)) {
- pstring name, comment;
- char *p, *q;
-
- if (*pcap_line == '#' || *pcap_line == 0)
- continue;
-
- /* now we have a real printer line - cut at the first : */
- if ((p = strchr_m(pcap_line, ':')) != NULL)
- *p = 0;
-
- /*
- * now find the most likely printer name and comment
- * this is pure guesswork, but it's better than nothing
- */
- for (*name = *comment = 0, p = pcap_line; p != NULL; p = q) {
- BOOL has_punctuation;
-
- if ((q = strchr_m(p, '|')) != NULL)
- *q++ = 0;
-
- has_punctuation = (strchr_m(p, ' ') ||
- strchr_m(p, '\t') ||
- strchr_m(p, '(') ||
- strchr_m(p, ')'));
-
- if (strlen(p) > strlen(comment) && has_punctuation) {
- pstrcpy(comment, p);
- continue;
- }
-
- if (strlen(p) <= MAXPRINTERLEN &&
- strlen(p) > strlen(name) && !has_punctuation) {
- if (!*comment)
- pstrcpy(comment, name);
-
- pstrcpy(name, p);
- continue;
- }
-
- if (!strchr_m(comment, ' ') &&
- strlen(p) > strlen(comment)) {
- pstrcpy(comment, p);
- continue;
- }
- }
-
- comment[60] = 0;
- name[MAXPRINTERLEN] = 0;
-
- if (*name && !pcap_cache_add(name, comment)) {
- x_fclose(pcap_file);
- goto done;
- }
- }
-
- x_fclose(pcap_file);
- pcap_reloaded = True;
+ pcap_reloaded = std_pcap_cache_reload(pcap_name);
done:
DEBUG(3, ("reload status: %s\n", (pcap_reloaded) ? "ok" : "error"));
- if (pcap_reloaded)
- pcap_cache_destroy(tmp_cache);
- else {
- pcap_cache_destroy(pcap_cache);
- pcap_cache = tmp_cache;
+ if (pcap_reloaded) {
+ /* cleanup old entries only if the operation was successful,
+ * otherwise keep around the old entries until we can
+ * successfuly reaload */
+ status = printer_list_clean_old();
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to cleanup printer list!\n"));
+ }
}
return;
}
-BOOL pcap_printername_ok(const char *printername)
+bool pcap_printername_ok(const char *printername)
{
- pcap_cache_t *p;
-
- for (p = pcap_cache; p != NULL; p = p->next)
- if (strequal(p->name, printername))
- return True;
+ NTSTATUS status;
- return False;
+ status = printer_list_get_printer(talloc_tos(), printername, NULL, 0);
+ return NT_STATUS_IS_OK(status);
}
/***************************************************************************
-run a function on each printer name in the printcap file. The function is
-passed the primary name and the comment (if possible). Note the fn() takes
-strings in DOS codepage. This means the xxx_printer_fn() calls must be fixed
-to return DOS codepage. FIXME !! JRA.
-
-XXX: I'm not sure if this comment still applies.. Anyone? -Rob
+run a function on each printer name in the printcap file.
***************************************************************************/
-void pcap_printer_fn(void (*fn)(char *, char *))
+
+void pcap_printer_fn_specific(const struct pcap_cache *pc,
+ void (*fn)(const char *, const char *, void *),
+ void *pdata)
{
- pcap_cache_t *p;
+ const struct pcap_cache *p;
+
+ for (p = pc; p != NULL; p = p->next)
+ fn(p->name, p->comment, pdata);
- for (p = pcap_cache; p != NULL; p = p->next)
- fn(p->name, p->comment);
+ return;
+}
+void pcap_printer_fn(void (*fn)(const char *, const char *, void *), void *pdata)
+{
+ NTSTATUS status;
+
+ status = printer_list_run_fn(fn, pdata);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Failed to run fn for all printers!\n"));
+ }
return;
}
git.samba.org / kamenim / samba.git / blobdiff