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/* $OpenBSD: lp_displayq.c,v 1.1.1.1 2018/04/27 16:14:36 eric Exp $ */
/*
* Copyright (c) 2017 Eric Faurot <eric@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "lp.h"
#include "log.h"
static void dolong(int, struct lp_printer *, struct lp_jobfilter *, int,
const char *, int);
static void doshort(int, struct lp_printer *, struct lp_jobfilter *, int,
const char *, int);
void
lp_displayq(int ofd, struct lp_printer *lp, int lng, struct lp_jobfilter *jf)
{
struct lp_queue q;
pid_t currpid;
char status[256], currjob[PATH_MAX];
int i, active, qstate;
/* Warn about the queue state if needed. */
if (lp_getqueuestate(lp, 0, &qstate) == -1)
log_warnx("cannot get queue state");
else {
if (qstate & LPQ_PRINTER_DOWN) {
if (lp->lp_type == PRN_LPR)
dprintf(ofd, "%s: ", lpd_hostname);
dprintf(ofd, "Warning: %s is down\n", lp->lp_name);
}
if (qstate & LPQ_QUEUE_OFF) {
if (lp->lp_type == PRN_LPR)
dprintf(ofd, "%s: ", lpd_hostname);
dprintf(ofd, "Warning: %s queue is turned off\n",
lp->lp_name);
}
}
/* Read queue content. */
if ((lp_readqueue(lp, &q)) == -1) {
log_warnx("cannot read queue");
if (lp->lp_type == PRN_LPR)
dprintf(ofd, "%s: ", lpd_hostname);
dprintf(ofd, "Warning: cannot read queue\n");
}
/* Display current printer status. */
if (lp_getcurrtask(lp, &currpid, currjob, sizeof(currjob)) == -1)
log_warnx("cannot get current task");
if (currpid) {
if (lp->lp_type == PRN_LPR)
dprintf(ofd, "%s: ", lpd_hostname);
if (lp_getstatus(lp, status, sizeof(status)) == -1) {
log_warnx("cannot read printer status");
dprintf(ofd, "Warning: cannot read status file\n");
}
else
dprintf(ofd, "%s\n", status);
}
/* Display queue content. */
if (q.count == 0) {
if (lp->lp_type != PRN_LPR)
dprintf(ofd, "no entries\n");
}
else {
if (currpid == 0) {
if (lp->lp_type == PRN_LPR)
dprintf(ofd, "%s: ", lpd_hostname);
dprintf(ofd, "Warning: no daemon present\n");
}
if (!lng) {
dprintf(ofd, "Rank Owner Job Files");
dprintf(ofd, "%43s\n", "Total Size");
}
for (i = 0; i < q.count; i++) {
active = !strcmp(q.cfname[i], currjob);
if (lng)
dolong(ofd, lp, jf, i+1, q.cfname[i], active);
else
doshort(ofd, lp, jf, i+1, q.cfname[i], active);
}
}
lp_clearqueue(&q);
}
static int
checklists(const char *cfname, struct lp_jobfilter *jf, const char *person)
{
int i;
if (jf->nuser == 0 && jf->njob == 0)
return 1;
/* Check if user is in user list. */
for (i = 0; i < jf->nuser; i++)
if (!strcmp(jf->users[i], person))
return 1;
/* Skip if hostnames don't match. */
if (strcmp(LP_JOBHOST(cfname), jf->hostfrom))
return 0;
/* Check for matching jobnum. */
for (i = 0; i < jf->njob; i++)
if (jf->jobs[i] == LP_JOBNUM(cfname))
return 1;
return 0;
}
static const char *
rankstr(int rank, int active)
{
static char buf[16];
const char *sfx;
if (active)
return "active";
sfx = "th";
switch (rank % 10) {
case 1:
if ((rank / 10) % 10 != 1)
sfx = "st";
break;
case 2:
sfx = "nd";
break;
case 3:
sfx = "rd";
}
snprintf(buf, sizeof(buf), "%d%s", rank, sfx);
return buf;
}
static void
doshort(int ofd, struct lp_printer *lp, struct lp_jobfilter *jf, int rank,
const char *cfname, int active)
{
struct stat st;
FILE *fp;
const char *fname;
char dfname[PATH_MAX], names[80], *line = NULL;
ssize_t len;
size_t linesz = 0, totalsz = 0;
int copies = 0;
fp = lp_fopen(lp, cfname);
if (fp == NULL) {
log_warn("cannot open %s", cfname);
return;
}
names[0] = '\0';
while ((len = getline(&line, &linesz, fp)) != -1) {
if (line[len-1] == '\n')
line[len - 1] = '\0';
switch (line[0]) {
case 'P':
if (!checklists(cfname, jf, line + 1))
goto end;
dprintf(ofd, "%-7s%-11s%-4i ", rankstr(rank, active),
line + 1, LP_JOBNUM(cfname));
break;
case 'N':
fname = line + 1;
if (!strcmp(fname, " "))
fname = "(standard input)";
if (names[0])
(void)strlcat(names, ", ", sizeof(names));
(void)strlcat(names, fname, sizeof(names));
if (lp_stat(lp, dfname, &st) == -1)
log_warn("cannot stat %s", dfname);
else
totalsz += copies * st.st_size;
copies = 0;
break;
default:
if (line[0] < 'a' || line[0] > 'z')
continue;
if (copies++ == 0)
(void)strlcpy(dfname, line+1, sizeof(dfname));
break;
}
}
dprintf(ofd, "%-37s %lld bytes\n", names, (long long)totalsz);
end:
free(line);
}
static void
dolong(int ofd, struct lp_printer *lp, struct lp_jobfilter *jf, int rank,
const char *cfname, int active)
{
struct stat st;
FILE *fp;
const char *fname;
char dfname[PATH_MAX], names[80], buf[64], *line = NULL;
ssize_t len;
size_t linesz = 0;
int copies = 0;
fp = lp_fopen(lp, cfname);
if (fp == NULL) {
log_warn("cannot open %s", cfname);
return;
}
names[0] = '\0';
while ((len = getline(&line, &linesz, fp)) != -1) {
if (line[len-1] == '\n')
line[len - 1] = '\0';
switch (line[0]) {
case 'P':
if (!checklists(cfname, jf, line + 1))
goto end;
snprintf(buf, sizeof(buf), "%s: %s", line+1,
rankstr(rank, active));
dprintf(ofd, "\n%-41s[job %s]\n", buf, cfname + 3);
break;
case 'N':
fname = line + 1;
if (!strcmp(fname, " "))
fname = "(standard input)";
if (copies > 1)
dprintf(ofd, "\t%-2d copies of %-19s", copies,
fname);
else
dprintf(ofd, "\t%-32s", fname);
if (lp_stat(lp, dfname, &st) == -1) {
log_warn("cannot stat %s", dfname);
dprintf(ofd, " ??? bytes\n");
}
else
dprintf(ofd, " %lld bytes\n",
(long long)st.st_size);
copies = 0;
break;
default:
if (line[0] < 'a' || line[0] > 'z')
continue;
if (copies++ == 0)
(void)strlcpy(dfname, line+1, sizeof(dfname));
break;
}
}
end:
free(line);
}
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