An alias, by the way, is defined as any component of the first entry of a
printcap record. Records are separated by newlines, components (if there are
more than one) are separated by vertical bar symbols ("|").
+
+NOTE: On SYSV systems which use lpstat to determine what printers are
+defined on the system you may be able to use "printcap name = lpstat"
+to automatically obtain a list of printers. See the "printcap name"
+option for more detils.
+
.RE
.SH PARAMETERS
Parameters define the specific attributes of services.
name used by the server (usually /etc/printcap). See the discussion of the
[printers] section above for reasons why you might want to do this.
-For those of you without a printcap (say on SysV) you can just create a
-minimal file that looks like a printcap and set "printcap name =" in
-[global] to point at it.
+On SystemV systems that use lpstat to list available printers you
+can use "printcap name = lpstat" to automatically obtain lists of
+available printers. This is the default for systems that define
+SYSV at compile time in Samba (this includes most SystemV based
+systems). If "printcap name" is set to lpstat on these systems then
+Samba will launch "lpstat -v" and attempt to parse the output to
+obtain a printer list.
A minimal printcap file would look something like this:
# If you want to automatically load your printer list rather
# than setting them up individually then you'll need this
- printcap name = /etc/printcap
load printers = yes
+# you may wish to override the location of the printcap file
+; printcap name = /etc/printcap
+
+# on SystemV system setting printcap name to lpstat should allow
+# you to automatically obtain a printer list from the SystemV spool
+# system
+; printcap name = lpstat
+
# It should not be necessary to specify the print system type unless
# it is non-standard. Currently supported print systems include:
# bsd, sysv, plp, lprng, aix, hpux, qnx
printcap file is a quick-n-dirty way to allow dynamic access to a subset
of available printers.
*/
+
+#ifndef PRINTCAP_NAME
+#ifdef AIX
+#define PRINTCAP_NAME "/etc/qconfig"
+#elif defined(SYSV)
+#define PRINTCAP_NAME "lpstat"
+#else
#define PRINTCAP_NAME "/etc/printcap"
+#endif
+#endif
/* this affects server level security. With this set (recommended)
samba will do a full NetWkstaUserLogon to confirm that the client
#define GLOBAL_NAME "global"
#endif
-#ifndef PRINTCAP_NAME
-#ifdef AIX
-#define PRINTCAP_NAME "/etc/qconfig"
-#else
-#define PRINTCAP_NAME "/etc/printcap"
-#endif
-#endif
-
#ifndef PRINTERS_NAME
#define PRINTERS_NAME "printers"
#endif
Re-working by Martin Kiff, 1994
Re-written again by Andrew Tridgell
+
+ Modified for SVID support by Norm Jacobs, 1997
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
* 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"
DEBUG(0,( "No printcap file name configured!\n"));
return(False);
}
+
+#ifdef SYSV
+ if (strequal(psz, "lpstat"))
+ return (sysv_printername_ok(pszPrintername));
+#endif
+
#ifdef AIX
if (strlocate(psz,"/qconfig") != NULL)
return(ScanQconfig(psz,pszPrintername));
#endif
+
if ((pfile = fopen(psz, "r")) == NULL)
{
DEBUG(0,( "Unable to open printcap file %s for read!\n", psz));
}
}
-
fclose(pfile);
return(False);
}
return;
}
+#ifdef SYSV
+ if (strequal(psz, "lpstat")) {
+ sysv_printer_fn(fn);
+ return;
+ }
+#endif
+
#ifdef AIX
if (strlocate(psz,"/qconfig") != NULL)
{
return;
}
#endif
+
if ((pfile = fopen(psz, "r")) == NULL)
{
DEBUG(0,( "Unable to open printcap file %s for read!\n", psz));
--- /dev/null
+/*
+ * Copyright (C) 1997 by Norm Jacobs, Colorado Springs, Colorado, USA
+ * Copyright (C) 1997 by Sun Microsystem, Inc.
+ * All Rights Reserved
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * This module implements support for gathering and comparing available
+ * printer information on a SVID or XPG4 compliant system. It does this
+ * through the use of the SVID/XPG4 command "lpstat(1)".
+ *
+ * The expectations is that execution of the command "lpstat -v" will
+ * generate responses in the form of:
+ *
+ * device for serial: /dev/term/b
+ * system for fax: server
+ * system for color: server (as printer chroma)
+ */
+
+
+#include "includes.h"
+#include "smb.h"
+
+#ifdef SYSV
+
+extern int DEBUGLEVEL;
+
+typedef struct printer {
+ char *name;
+ struct printer *next;
+} printer_t;
+static printer_t *printers = NULL;
+
+static void populate_printers()
+{
+ FILE *fp;
+
+ if ((fp = popen("/usr/bin/lpstat -v", "r")) != NULL) {
+ char buf[BUFSIZ];
+
+ while (fgets(buf, sizeof (buf), fp) != NULL) {
+ printer_t *ptmp;
+ char *name, *tmp;
+
+ /* eat "system/device for " */
+ if (((tmp = strchr(buf, ' ')) == NULL) ||
+ ((tmp = strchr(++tmp, ' ')) == NULL))
+ continue;
+ name = tmp++;
+
+ /* truncate the ": ..." */
+ if ((tmp = strchr(name, ':')) != NULL)
+ *tmp = NULL;
+
+ /* add it to the cache */
+ if ((ptmp = malloc(sizeof (*ptmp))) != NULL) {
+ memset(ptmp, NULL, sizeof (*ptmp));
+ ptmp->name = strdup(name);
+ ptmp->next = printers;
+ printers = ptmp;
+ }
+ }
+ pclose(fp);
+ } else {
+ DEBUG(0,( "Unable to run lpstat!\n"));
+ }
+}
+
+
+/*
+ * provide the equivalent of pcap_printer_fn() for SVID/XPG4 conforming
+ * systems. It was unclear why pcap_printer_fn() was tossing names longer
+ * than 8 characters. I suspect that its a protocol limit, but amazingly
+ * names longer than 8 characters appear to work with my test
+ * clients (Win95/NT).
+ */
+void sysv_printer_fn(void (*fn)())
+{
+ printer_t *tmp;
+
+ if (printers == NULL)
+ populate_printers();
+ for (tmp = printers; tmp != NULL; tmp = tmp->next)
+ (fn)(tmp->name, "");
+}
+
+
+/*
+ * provide the equivalent of pcap_printername_ok() for SVID/XPG4 conforming
+ * systems.
+ */
+int sysv_printername_ok(char *name)
+{
+ printer_t *tmp;
+
+ if (printers == NULL)
+ populate_printers();
+ for (tmp = printers; tmp != NULL; tmp = tmp->next)
+ if (strcmp(tmp->name, name) == 0)
+ return (True);
+ return (False);
+}
+
+#else
+/* this keeps fussy compilers happy */
+ void print_svid_dummy(void) {}
+#endif
git.samba.org / samba.git / commitdiff