void
rmjob(const char *printer)
{
register int i, nitems;
int assassinated = 0;
struct dirent **files;
char *cp;
struct printer myprinter, *pp = &myprinter;
init_printer(pp);
if ((i = getprintcap(printer, pp)) < 0)
fatal(pp, "getprintcap: %s", pcaperr(i));
if ((cp = checkremote(pp))) {
printf("Warning: %s\n", cp);
free(cp);
}
/*
* If the format was `lprm -' and the user isn't the super-user,
* then fake things to look like he said `lprm user'.
*/
if (users < 0) {
if (getuid() == 0)
all = 1; /* all files in local queue */
else {
user[0] = person;
users = 1;
}
}
if (!strcmp(person, "-all")) {
if (from_host == local_host)
fatal(pp, "The login name \"-all\" is reserved");
all = 1; /* all those from 'from_host' */
person = root;
}
seteuid(euid);
if (chdir(pp->spool_dir) < 0)
fatal(pp, "cannot chdir to spool directory");
if ((nitems = scandir(".", &files, iscf, NULL)) < 0)
fatal(pp, "cannot access spool directory");
seteuid(uid);
if (nitems) {
/*
* Check for an active printer daemon (in which case we
* kill it if it is reading our file) then remove stuff
* (after which we have to restart the daemon).
*/
if (lockchk(pp, pp->lock_file) && chk(current)) {
seteuid(euid);
assassinated = kill(cur_daemon, SIGINT) == 0;
seteuid(uid);
if (!assassinated)
fatal(pp, "cannot kill printer daemon");
}
/*
* process the files
*/
for (i = 0; i < nitems; i++)
process(pp, files[i]->d_name);
}
rmremote(pp);
/*
* Restart the printer daemon if it was killed
*/
if (assassinated && !startdaemon(pp))
fatal(pp, "cannot restart printer daemon\n");
exit(0);
}
void
rmjob(void)
{
int i, nitems;
int assassinated = 0;
struct dirent **files;
char *cp;
if ((i = cgetent(&bp, printcapdb, printer)) == -2)
fatal("can't open printer description file");
else if (i == -1)
fatal("unknown printer");
else if (i == -3)
fatal("potential reference loop detected in printcap file");
if (cgetstr(bp, DEFLP, &LP) < 0)
LP = _PATH_DEFDEVLP;
if (cgetstr(bp, "rp", &RP) < 0)
RP = DEFLP;
if (cgetstr(bp, "sd", &SD) < 0)
SD = _PATH_DEFSPOOL;
if (cgetstr(bp,"lo", &LO) < 0)
LO = DEFLOCK;
cgetstr(bp, "rm", &RM);
if ((cp = checkremote()) != NULL)
printf("Warning: %s\n", cp);
/*
* If the format was `lprm -' and the user isn't the super-user,
* then fake things to look like he said `lprm user'.
*/
if (users < 0) {
if (getuid() == 0)
all = 1; /* all files in local queue */
else {
user[0] = person;
users = 1;
}
}
if (!strcmp(person, "-all")) {
if (from == host)
fatal("The login name \"-all\" is reserved");
all = 1; /* all those from 'from' */
person = root;
}
PRIV_START;
if (chdir(SD) < 0)
fatal("cannot chdir to spool directory");
if ((nitems = scandir(".", &files, iscf, NULL)) < 0)
fatal("cannot access spool directory");
PRIV_END;
if (nitems) {
/*
* Check for an active printer daemon. If one is running
* and it is reading our file, kill it, then remove stuff.
* Lastly, restart the daemon if it is not (or no longer)
* running.
*/
if (lockchk(LO) && chk(current)) {
PRIV_START;
assassinated = kill(cur_daemon, SIGINT) == 0;
PRIV_END;
if (!assassinated)
fatal("cannot kill printer daemon");
}
/*
* process the files
*/
for (i = 0; i < nitems; i++)
process(files[i]->d_name);
}
rmremote();
/*
* Restart the printer daemon if it was killed
*/
if (assassinated && !startdaemon(printer))
fatal("cannot restart printer daemon");
exit(0);
}
/*
* Display the current state of the queue. Format = 1 if long format.
*/
void
displayq(struct printer *pp, int format)
{
register struct jobqueue *q;
register int i, nitems, fd, ret;
char *cp, *endp;
struct jobqueue **queue;
struct stat statb;
FILE *fp;
void (*savealrm)(int);
lflag = format;
totsize = 0;
rank = -1;
if ((cp = checkremote(pp))) {
printf("Warning: %s\n", cp);
free(cp);
}
/*
* Print out local queue
* Find all the control files in the spooling directory
*/
PRIV_START
if (chdir(pp->spool_dir) < 0)
fatal(pp, "cannot chdir to spooling directory: %s",
strerror(errno));
PRIV_END
if ((nitems = getq(pp, &queue)) < 0)
fatal(pp, "cannot examine spooling area\n");
PRIV_START
ret = stat(pp->lock_file, &statb);
PRIV_END
if (ret >= 0) {
if (statb.st_mode & LFM_PRINT_DIS) {
if (pp->remote)
printf("%s: ", local_host);
printf("Warning: %s is down: ", pp->printer);
PRIV_START
fd = open(pp->status_file, O_RDONLY|O_SHLOCK);
PRIV_END
if (fd >= 0) {
while ((i = read(fd, line, sizeof(line))) > 0)
(void) fwrite(line, 1, i, stdout);
(void) close(fd); /* unlocks as well */
} else
putchar('\n');
}
if (statb.st_mode & LFM_QUEUE_DIS) {
if (pp->remote)
printf("%s: ", local_host);
printf("Warning: %s queue is turned off\n",
pp->printer);
}
}
if (nitems) {
PRIV_START
fp = fopen(pp->lock_file, "r");
PRIV_END
if (fp == NULL)
daemonwarn(pp);
else {
/* get daemon pid */
cp = current;
endp = cp + sizeof(current) - 1;
while ((i = getc(fp)) != EOF && i != '\n') {
if (cp < endp)
*cp++ = i;
}
*cp = '\0';
i = atoi(current);
if (i <= 0) {
ret = -1;
} else {
PRIV_START
ret = kill(i, 0);
PRIV_END
}
if (ret < 0) {
daemonwarn(pp);
} else {
/* read current file name */
cp = current;
endp = cp + sizeof(current) - 1;
while ((i = getc(fp)) != EOF && i != '\n') {
if (cp < endp)
*cp++ = i;
}
*cp = '\0';
/*
* Print the status file.
*/
if (pp->remote)
printf("%s: ", local_host);
PRIV_START
fd = open(pp->status_file, O_RDONLY|O_SHLOCK);
PRIV_END
if (fd >= 0) {
while ((i = read(fd, line,
sizeof(line))) > 0)
fwrite(line, 1, i, stdout);
close(fd); /* unlocks as well */
} else
putchar('\n');
}
(void) fclose(fp);
}
/*
* Now, examine the control files and print out the jobs to
* be done for each user.
*/
if (!lflag)
header();
for (i = 0; i < nitems; i++) {
q = queue[i];
inform(pp, q->job_cfname);
free(q);
}
free(queue);
}
if (!pp->remote) {
if (nitems == 0)
puts("no entries");
return;
}
/*
* Print foreign queue
* Note that a file in transit may show up in either queue.
*/
if (nitems)
putchar('\n');
(void) snprintf(line, sizeof(line), "%c%s", format ? '\4' : '\3',
pp->remote_queue);
cp = line;
for (i = 0; i < requests && cp-line+10 < sizeof(line) - 1; i++) {
cp += strlen(cp);
(void) sprintf(cp, " %d", requ[i]);
}
for (i = 0; i < users && cp - line + 1 + strlen(user[i]) <
sizeof(line) - 1; i++) {
cp += strlen(cp);
*cp++ = ' ';
(void) strcpy(cp, user[i]);
}
strcat(line, "\n");
savealrm = signal(SIGALRM, alarmhandler);
alarm(pp->conn_timeout);
fd = getport(pp, pp->remote_host, 0);
alarm(0);
(void)signal(SIGALRM, savealrm);
if (fd < 0) {
if (from_host != local_host)
printf("%s: ", local_host);
printf("connection to %s is down\n", pp->remote_host);
}
else {
i = strlen(line);
if (write(fd, line, i) != i)
fatal(pp, "Lost connection");
while ((i = read(fd, line, sizeof(line))) > 0)
filtered_write(line, i, stdout);
filtered_write(NULL, -1, stdout);
(void) close(fd);
}
}
/*
* Display the current state of the queue. Format = 1 if long format.
*/
void
displayq(int format)
{
struct queue *q;
int i, rank, nitems, fd, ret, len;
char *cp, *ecp, *p;
struct queue **queue;
struct winsize win;
struct stat statb;
FILE *fp;
termwidth = 80;
if (isatty(STDOUT_FILENO)) {
if ((p = getenv("COLUMNS")) != NULL)
termwidth = atoi(p);
else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == 0 &&
win.ws_col > 0)
termwidth = win.ws_col;
}
if (termwidth < 60)
termwidth = 60;
lflag = format;
totsize = 0;
if ((i = cgetent(&bp, printcapdb, printer)) == -2)
fatal("can't open printer description file");
else if (i == -1)
fatal("unknown printer");
else if (i == -3)
fatal("potential reference loop detected in printcap file");
if (cgetstr(bp, DEFLP, &LP) < 0)
LP = _PATH_DEFDEVLP;
if (cgetstr(bp, "rp", &RP) < 0)
RP = DEFLP;
if (cgetstr(bp, "sd", &SD) < 0)
SD = _PATH_DEFSPOOL;
if (cgetstr(bp,"lo", &LO) < 0)
LO = DEFLOCK;
if (cgetstr(bp, "st", &ST) < 0)
ST = DEFSTAT;
cgetstr(bp, "rm", &RM);
if ((cp = checkremote()) != NULL)
printf("Warning: %s\n", cp);
/*
* Print out local queue
* Find all the control files in the spooling directory
*/
PRIV_START;
if (chdir(SD) < 0)
fatal("cannot chdir to spooling directory");
PRIV_END;
if ((nitems = getq(&queue)) < 0)
fatal("cannot examine spooling area");
PRIV_START;
ret = stat(LO, &statb);
PRIV_END;
if (ret >= 0) {
if (statb.st_mode & S_IXUSR) {
if (remote)
printf("%s: ", host);
printf("Warning: %s is down: ", printer);
PRIV_START;
fd = safe_open(ST, O_RDONLY|O_NOFOLLOW, 0);
PRIV_END;
if (fd >= 0 && flock(fd, LOCK_SH) == 0) {
while ((i = read(fd, line, sizeof(line))) > 0)
(void)fwrite(line, 1, i, stdout);
(void)close(fd); /* unlocks as well */
} else
putchar('\n');
}
if (statb.st_mode & S_IXGRP) {
if (remote)
printf("%s: ", host);
printf("Warning: %s queue is turned off\n", printer);
}
}
if (nitems) {
PRIV_START;
fd = safe_open(LO, O_RDONLY|O_NOFOLLOW, 0);
PRIV_END;
if (fd < 0 || (fp = fdopen(fd, "r")) == NULL) {
if (fd >= 0)
close(fd);
nodaemon();
} else {
/* get daemon pid */
cp = current;
ecp = cp + sizeof(current) - 1;
while ((i = getc(fp)) != EOF && i != '\n') {
if (cp < ecp)
*cp++ = i;
}
*cp = '\0';
i = atoi(current);
if (i <= 0) {
ret = -1;
} else {
PRIV_START;
ret = kill(i, 0);
PRIV_END;
}
if (ret < 0 && errno != EPERM) {
nodaemon();
} else {
/* read current file name */
cp = current;
ecp = cp + sizeof(current) - 1;
while ((i = getc(fp)) != EOF && i != '\n') {
if (cp < ecp)
*cp++ = i;
}
*cp = '\0';
/*
* Print the status file.
*/
if (remote)
printf("%s: ", host);
PRIV_START;
fd = safe_open(ST, O_RDONLY|O_NOFOLLOW, 0);
PRIV_END;
if (fd >= 0 && flock(fd, LOCK_SH) == 0) {
while ((i = read(fd, line, sizeof(line))) > 0)
(void)fwrite(line, 1, i, stdout);
(void)close(fd); /* unlocks as well */
} else
putchar('\n');
}
(void)fclose(fp);
}
/*
* Now, examine the control files and print out the jobs to
* be done for each user.
*/
if (!lflag)
header();
/* The currently printed job is treated specially. */
if (!remote && current[0] != '\0')
inform(current, 0);
for (i = 0, rank = 1; i < nitems; i++) {
q = queue[i];
if (remote || strcmp(current, q->q_name) != 0)
inform(q->q_name, rank++);
free(q);
}
}
free(queue);
if (!remote) {
if (nitems == 0)
puts("no entries");
return;
}
/*
* Print foreign queue
* Note that a file in transit may show up in either queue.
*/
if (nitems)
putchar('\n');
(void)snprintf(line, sizeof(line), "%c%s", format + '\3', RP);
cp = line;
cp += strlen(cp);
for (i = 0; i < requests && cp - line < sizeof(line) - 1; i++) {
len = line + sizeof(line) - cp;
if (snprintf(cp, len, " %d", requ[i]) >= len) {
cp += strlen(cp);
break;
}
cp += strlen(cp);
}
for (i = 0; i < users && cp - line < sizeof(line) - 1; i++) {
len = line + sizeof(line) - cp;
if (snprintf(cp, len, " %s", user[i]) >= len) {
cp += strlen(cp);
break;
}
}
if (cp-line < sizeof(line) - 1)
strlcat(line, "\n", sizeof(line));
else
line[sizeof(line) - 2] = '\n';
fd = getport(RM, 0);
if (fd < 0) {
if (from != host)
printf("%s: ", host);
(void)printf("connection to %s is down\n", RM);
}
else {
struct sigaction osa, nsa;
char *visline;
int n = 0;
i = strlen(line);
if (write(fd, line, i) != i)
fatal("Lost connection");
memset(&nsa, 0, sizeof(nsa));
nsa.sa_handler = alarmer;
sigemptyset(&nsa.sa_mask);
nsa.sa_flags = 0;
(void)sigaction(SIGALRM, &nsa, &osa);
alarm(wait_time);
if ((visline = (char *)malloc(4 * sizeof(line) + 1)) == NULL)
fatal("Out of memory");
while ((i = read(fd, line, sizeof(line))) > 0) {
n = strvisx(visline, line, i, VIS_SAFE|VIS_NOSLASH);
(void)fwrite(visline, 1, n, stdout);
alarm(wait_time);
}
/* XXX some LPR implementations may not end stream with '\n' */
if (n > 0 && visline[n-1] != '\n')
putchar('\n');
alarm(0);
(void)sigaction(SIGALRM, &osa, NULL);
free(visline);
(void)close(fd);
}
}
