/*    Unix SMB/Netbios implementation.   Virtual lp system for printer testing   Copyright (C) Tim Potter 2000      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.*/#include "includes.h"#define PRINT_TDB "/tmp/vlp.tdb"#define PRINT_FIRSTJOB "100"static TDB_CONTEXT *tdb;struct vlp_job {	fstring owner;	int jobid;	fstring jobname;	int size;	int status;	time_t submit_time;	int deleted;};/* Print usage */static void usage(void){	printf("Usage: print-test lpq|lprm|print|queuepause|queueresume|"	       "lppause|lpresume [args]\n");}/* Return an array of vlp jobs that is the printer queue */static void get_job_list(char *printer, struct vlp_job **job_list, 			 int *num_jobs){	fstring keystr;	TDB_DATA data;	slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);	data = tdb_fetch_by_string(tdb, keystr);	*job_list = (struct vlp_job *)data.dptr;	*num_jobs = data.dsize / sizeof(struct vlp_job);}/* Store an array of vl jobs for the queue */static void set_job_list(char *printer, struct vlp_job *job_list, 			 int num_jobs){	fstring keystr;	slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);	tdb_store_by_string(tdb, keystr, job_list, 			    num_jobs * sizeof(struct vlp_job));}/* Return the next job number for a printer */static int next_jobnum(char *printer){	fstring keystr;	int jobnum;	slprintf(keystr, sizeof(keystr) - 1, "JOBNUM/%s", printer);	tdb_lock_bystring(tdb, keystr);	jobnum = tdb_fetch_int(tdb, keystr);	/* Create next job index if none exists */	if (jobnum == -1) {		jobnum = atoi(PRINT_FIRSTJOB);	}	jobnum++;	tdb_store_int(tdb, keystr, jobnum);	tdb_unlock_bystring(tdb, keystr);	return jobnum;}static void set_printer_status(char *printer, int status){	fstring keystr;	int result;	slprintf(keystr, sizeof(keystr) - 1, "STATUS/%s", printer);	result = tdb_store_int(tdb, keystr, status);}static int get_printer_status(char *printer){	fstring keystr;	TDB_DATA data;	slprintf(keystr, sizeof(keystr) - 1, "STATUS/%s", printer);	data.dptr = keystr;	data.dsize = strlen(keystr) + 1;	if (!tdb_exists(tdb, data)) {		set_printer_status(printer, LPSTAT_OK);		return LPSTAT_OK;	}	return tdb_fetch_int(tdb, keystr);}/* Display printer queue */static int lpq_command(int argc, char **argv){	char *printer;	struct vlp_job *job_list = NULL;	int i, num_jobs, job_count = 0;	if (argc != 2) {		printf("Usage: lpq <printername>\n");		return 1;	}	printer = argv[1];	/* Display printer status */	switch (get_printer_status(printer)) {	case LPSTAT_OK:		printf("enabled\n");		break;	case LPSTAT_STOPPED:		printf("disabled\n");		break;	case LPSTAT_ERROR:	default:		printf("error\n");		break;	}	/* Print queued documents */	get_job_list(printer, &job_list, &num_jobs);	for (i = 0; i < num_jobs; i++) {		if (job_list[i].deleted) continue;		printf("%d\t%d\t%d\t%ld\t%s\t%s\n", job_list[i].jobid,		       job_list[i].size, 		       (i == 0 && job_list[i].status == LPQ_QUEUED) ? 		       LPQ_SPOOLING : job_list[i].status,		       job_list[i].submit_time, job_list[i].owner, 		       job_list[i].jobname);		job_count++;	}	free(job_list);	return 0;}/* Remove a job */static int lprm_command(int argc, char **argv){	char *printer;	int jobid, num_jobs, i;	struct vlp_job *job_list;	if (argc < 3) {		printf("Usage: lprm <printername> <jobid>\n");		return 1;	}	printer = argv[1];	jobid = atoi(argv[2]);	get_job_list(printer, &job_list, &num_jobs);	for (i = 0; i < num_jobs; i++) {		if (job_list[i].jobid == jobid) {			job_list[i].deleted = 1;			set_job_list(printer, job_list, num_jobs);			break;		}	}	return 0;}/* print command = print-test %p %s */static int print_command(int argc, char **argv){	char *printer;	fstring keystr;	struct passwd *pw;	TDB_DATA value;	struct vlp_job job;	int i;	if (argc < 3) {		printf("Usage: print <printername> <jobname>\n");		return 1;	}	printer = argv[1];	ZERO_STRUCT(job);	/* Create a job record */	for (i = 2; i < argc; i++) {		fstrcat(job.jobname, argv[i]);		if (i < argc - 1) {			fstrcat(job.jobname, " ");		}	}	if (!(pw = getpwuid(getuid()))) {		return 1;	}	fstrcpy(job.owner, pw->pw_name);	job.jobid = next_jobnum(printer);	job.size = 666;	job.submit_time = time(NULL);	/* Store job entry in queue */	slprintf(keystr, sizeof(keystr) - 1, "LPQ/%s", printer);		value = tdb_fetch_by_string(tdb, keystr);	if (value.dptr) {		/* Add job to end of queue */		value.dptr = realloc(value.dptr, value.dsize + 				     sizeof(struct vlp_job));		if (!value.dptr) return 1;		memcpy(value.dptr + value.dsize, &job, sizeof(struct vlp_job));		tdb_store_by_string(tdb, keystr, value.dptr, value.dsize +				    sizeof(struct vlp_job));		free(value.dptr);	} else {				/* Create new queue */		tdb_store_by_string(tdb, keystr, &job, sizeof(struct vlp_job));	}			return 0;}/* Pause the queue */static int queuepause_command(int argc, char **argv){	char *printer;	if (argc != 2) {		printf("Usage: queuepause <printername>\n");		return 1;	}	printer = argv[1];	set_printer_status(printer, LPSTAT_STOPPED);	return 0;}/* Resume the queue */static int queueresume_command(int argc, char **argv){	char *printer;	if (argc != 2) {		printf("Usage: queueresume <printername>\n");		return 1;	}	printer = argv[1];	set_printer_status(printer, LPSTAT_OK);	return 0;}/* Pause a job */static int lppause_command(int argc, char **argv){	struct vlp_job *job_list;	char *printer;	int jobid, num_jobs, i;	if (argc != 3) {		printf("Usage: lppause <printername> <jobid>\n");		return 1;	}	printer = argv[1];	jobid = atoi(argv[2]);	get_job_list(printer, &job_list, &num_jobs);	for (i = 0; i < num_jobs; i++) {		if (job_list[i].jobid == jobid) {			job_list[i].status = LPQ_PAUSED;			set_job_list(printer, job_list, num_jobs);			return 0;		}	}	return 1;}/* Resume a job */static int lpresume_command(int argc, char **argv){	struct vlp_job *job_list;	char *printer;	int jobid, num_jobs, i;	if (argc != 3) {		printf("Usage: lpresume <printername> <jobid>\n");		return 1;	}	printer = argv[1];	jobid = atoi(argv[2]);	get_job_list(printer, &job_list, &num_jobs);	for (i = 0; i < num_jobs; i++) {		if (job_list[i].jobid == jobid) {			job_list[i].status = LPQ_QUEUED;			set_job_list(printer, job_list, num_jobs);			return 0;		}	}	return 1;}int main(int argc, char **argv){	/* Parameter check */	if (argc == 1) {		usage();		return 1;	}	/* Initialise */	if (!(tdb = tdb_open(PRINT_TDB, 0, 0, O_RDWR | O_CREAT,			     0666))) {		printf("%s: unable to open %s\n", argv[0], PRINT_TDB);		return 1;	}	/* Ensure we are modes 666 */	chmod(PRINT_TDB, 0666);	/* Do commands */	if (strcmp(argv[1], "lpq") == 0) {		return lpq_command(argc - 1, &argv[1]);	}	if (strcmp(argv[1], "lprm") == 0) {		return lprm_command(argc - 1, &argv[1]);	}	if (strcmp(argv[1], "print") == 0) {		return print_command(argc - 1, &argv[1]);	}	if (strcmp(argv[1], "queuepause") == 0) {		return queuepause_command(argc - 1, &argv[1]);	}	if (strcmp(argv[1], "queueresume") == 0) {		return queueresume_command(argc - 1, &argv[1]);	}	if (strcmp(argv[1], "lppause") == 0) {		return lppause_command(argc - 1, &argv[1]);	}	if (strcmp(argv[1], "lpresume") == 0) {		return lpresume_command(argc - 1, &argv[1]);	}	/* Unknown command */	printf("%s: invalid command %s\n", argv[0], argv[1]);	return 1;}