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/*
* Copyright (C) 1997-1998 by Norm Jacobs, Colorado Springs, Colorado, USA
* Copyright (C) 1997-1998 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(void)
{
#ifdef HAVE_POPEN
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;
/*
* In case we're only at the "for ".
*/
if(!strncmp("for ",++tmp,4))
{
tmp=strchr(tmp, ' ');
tmp++;
}
name = tmp;
/* truncate the ": ..." */
if ((tmp = strchr(name, ':')) != NULL)
*tmp = '\0';
/* add it to the cache */
if ((ptmp = malloc(sizeof (*ptmp))) != NULL) {
ZERO_STRUCTP(ptmp);
if((ptmp->name = strdup(name)) == NULL)
DEBUG(0,("populate_printers: malloc fail in strdup !\n"));
ptmp->next = printers;
printers = ptmp;
} else {
DEBUG(0,("populate_printers: malloc fail for ptmp\n"));
}
}
pclose(fp);
} else {
DEBUG(0,( "Unable to run lpstat!\n"));
}
#else
DEBUG(0,( "No popen() defined: Unable to run lpstat!\n"));
#endif
}
/*
* 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)(char *, char *))
{
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);
void print_svid_dummy(void) {}
#endif
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