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123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/*
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* Copyright (C) 1997-1998 by Norm Jacobs, Colorado Springs, Colorado, USA
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* Copyright (C) 1997-1998 by Sun Microsystem, Inc.
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* This module implements support for gathering and comparing available
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* printer information on a SVID or XPG4 compliant system. It does this
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* through the use of the SVID/XPG4 command "lpstat(1)".
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*
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* The expectations is that execution of the command "lpstat -v" will
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* generate responses in the form of:
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*
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* device for serial: /dev/term/b
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* system for fax: server
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* system for color: server (as printer chroma)
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*/
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#include "includes.h"
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#include "smb.h"
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#ifdef SYSV
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extern int DEBUGLEVEL;
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typedef struct printer {
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char *name;
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struct printer *next;
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} printer_t;
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static printer_t *printers = NULL;
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static void populate_printers(void)
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{
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FILE *fp;
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if ((fp = popen("/usr/bin/lpstat -v", "r")) != NULL) {
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char buf[BUFSIZ];
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while (fgets(buf, sizeof (buf), fp) != NULL) {
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printer_t *ptmp;
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char *name, *tmp;
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/* eat "system/device for " */
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if (((tmp = strchr(buf, ' ')) == NULL) ||
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((tmp = strchr(++tmp, ' ')) == NULL))
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continue;
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name = ++tmp;
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/* truncate the ": ..." */
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if ((tmp = strchr(name, ':')) != NULL)
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*tmp = '\0';
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/* add it to the cache */
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if ((ptmp = malloc(sizeof (*ptmp))) != NULL) {
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ZERO_STRUCTP(ptmp);
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ptmp->name = strdup(name);
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ptmp->next = printers;
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printers = ptmp;
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}
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}
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pclose(fp);
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} else {
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DEBUG(0,( "Unable to run lpstat!\n"));
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}
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}
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/*
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* provide the equivalent of pcap_printer_fn() for SVID/XPG4 conforming
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* systems. It was unclear why pcap_printer_fn() was tossing names longer
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* than 8 characters. I suspect that its a protocol limit, but amazingly
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* names longer than 8 characters appear to work with my test
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* clients (Win95/NT).
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*/
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void sysv_printer_fn(void (*fn)(char *, char *))
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{
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printer_t *tmp;
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if (printers == NULL)
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populate_printers();
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for (tmp = printers; tmp != NULL; tmp = tmp->next)
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(fn)(tmp->name, "");
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}
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/*
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* provide the equivalent of pcap_printername_ok() for SVID/XPG4 conforming
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* systems.
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*/
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int sysv_printername_ok(char *name)
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{
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printer_t *tmp;
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if (printers == NULL)
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populate_printers();
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for (tmp = printers; tmp != NULL; tmp = tmp->next)
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if (strcmp(tmp->name, name) == 0)
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return (True);
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return (False);
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}
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#else
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/* this keeps fussy compilers happy */
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void print_svid_dummy(void);
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void print_svid_dummy(void) {}
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#endif
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