2.11BSD/src/usr.sbin/lpr/displayq.c
/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef lint
static char sccsid[] = "@(#)displayq.c 5.1 (Berkeley) 6/6/85";
#endif not lint
/*
* Routines to display the state of the queue.
*/
#include "lp.h"
#define JOBCOL 40 /* column for job # in -l format */
#define OWNCOL 7 /* start of Owner column in normal */
#define SIZCOL 62 /* start of Size column in normal */
/*
* Stuff for handling job specifications
*/
extern char *user[]; /* users to process */
extern int users; /* # of users in user array */
extern int requ[]; /* job number of spool entries */
extern int requests; /* # of spool requests */
int lflag; /* long output option */
char current[40]; /* current file being printed */
int garbage; /* # of garbage cf files */
int rank; /* order to be printed (-1=none, 0=active) */
long totsize; /* total print job size in bytes */
int first; /* first file in ``files'' column? */
int col; /* column on screen */
int sendtorem; /* are we sending to a remote? */
char file[132]; /* print file name */
char *head0 = "Rank Owner Job Files";
char *head1 = "Total Size\n";
/*
* Display the current state of the queue. Format = 1 if long format.
*/
displayq(format)
int format;
{
register struct queue *q;
register int i, nitems, fd;
struct queue **queue;
struct stat statb;
FILE *fp;
static repeat = 0;
lflag = format;
totsize = 0;
rank = -1;
if (repeat)
goto localcheck_done;
else
repeat++;
if ((i = pgetent(line, printer)) < 0)
fatal("cannot open printer description file");
else if (i == 0)
fatal("unknown printer");
if ((LP = pgetstr("lp", &bp)) == NULL)
LP = DEFDEVLP;
if ((RP = pgetstr("rp", &bp)) == NULL)
RP = DEFLP;
if ((SD = pgetstr("sd", &bp)) == NULL)
SD = DEFSPOOL;
if ((LO = pgetstr("lo", &bp)) == NULL)
LO = DEFLOCK;
if ((ST = pgetstr("st", &bp)) == NULL)
ST = DEFSTAT;
RM = pgetstr("rm", &bp);
/*
* Figure out whether the local machine is the same as the remote
* machine entry (if it exists). If not, then ignore the local
* queue information.
*/
if (RM != (char *) NULL) {
char name[256];
struct hostent *hp;
/* get the standard network name of the local host */
gethostname(name, sizeof(name));
name[sizeof(name)-1] = '\0';
hp = gethostbyname(name);
if (hp == (struct hostent *) NULL) {
printf("unable to get network name for local machine %s\n",
name);
goto localcheck_done;
} else strcpy(name, hp->h_name);
/* get the network standard name of RM */
hp = gethostbyname(RM);
if (hp == (struct hostent *) NULL) {
printf("unable to get hostname for remote machine %s\n",
RM);
goto localcheck_done;
}
/* if printer is not on local machine, ignore LP */
if (strcmp(name, hp->h_name) != 0) *LP = '\0';
}
localcheck_done:
/*
* If there is no local printer, then print the queue on
* the remote machine and then what's in the queue here.
* Note that a file in transit may not show up in either queue.
*/
if (*LP == '\0') {
register char *cp;
char c;
sendtorem++;
(void) sprintf(line, "%c%s", format + '\3', RP);
cp = line;
for (i = 0; i < requests; i++) {
cp += strlen(cp);
(void) sprintf(cp, " %d", requ[i]);
}
for (i = 0; i < users; i++) {
cp += strlen(cp);
*cp++ = ' ';
strcpy(cp, user[i]);
}
strcat(line, "\n");
fd = getport(RM);
if (fd < 0) {
if (from != host)
printf("%s: ", host);
printf("connection to %s is down\n", RM);
} else {
i = strlen(line);
if (write(fd, line, i) != i)
fatal("Lost connection");
while ((i = read(fd, line, sizeof(line))) > 0)
(void) fwrite(line, 1, i, stdout);
(void) close(fd);
}
}
/*
* Find all the control files in the spooling directory
*/
if (chdir(SD) < 0)
fatal("cannot chdir to spooling directory");
if ((nitems = getq(&queue)) < 0)
fatal("cannot examine spooling area\n");
if (stat(LO, &statb) >= 0) {
if ((statb.st_mode & 0110) && sendtorem)
printf("\n");
if (statb.st_mode & 0100) {
if (sendtorem)
printf("%s: ", host);
printf("Warning: %s is down: ", printer);
fd = open(ST, O_RDONLY);
if (fd >= 0) {
(void) flock(fd, LOCK_SH);
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 & 010) {
if (sendtorem)
printf("%s: ", host);
printf("Warning: %s queue is turned off\n", printer);
}
}
if (nitems == 0) {
if (!sendtorem)
printf("no entries\n");
return(0);
}
fp = fopen(LO, "r");
if (fp == NULL)
warn();
else {
register char *cp;
/* get daemon pid */
cp = current;
while ((*cp = getc(fp)) != EOF && *cp != '\n')
cp++;
*cp = '\0';
i = atoi(current);
if (i <= 0 || kill(i, 0) < 0)
warn();
else {
/* read current file name */
cp = current;
while ((*cp = getc(fp)) != EOF && *cp != '\n')
cp++;
*cp = '\0';
/*
* Print the status file.
*/
if (sendtorem)
printf("\n%s: ", host);
fd = open(ST, O_RDONLY);
if (fd >= 0) {
(void) flock(fd, LOCK_SH);
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();
for (i = 0; i < nitems; i++) {
q = queue[i];
inform(q->q_name);
free(q);
}
free(queue);
return(nitems-garbage);
}
/*
* Print a warning message if there is no daemon present.
*/
warn()
{
if (sendtorem)
printf("\n%s: ", host);
printf("Warning: no daemon present\n");
current[0] = '\0';
}
/*
* Print the header for the short listing format
*/
header()
{
printf(head0);
col = strlen(head0)+1;
blankfill(SIZCOL);
printf(head1);
}
inform(cf)
char *cf;
{
register int j, k;
register char *cp;
FILE *cfp;
/*
* There's a chance the control file has gone away
* in the meantime; if this is the case just keep going
*/
if ((cfp = fopen(cf, "r")) == NULL)
return;
if (rank < 0)
rank = 0;
if (sendtorem || garbage || strcmp(cf, current))
rank++;
j = 0;
while (getline(cfp)) {
switch (line[0]) {
case 'P': /* Was this file specified in the user's list? */
if (!inlist(line+1, cf)) {
fclose(cfp);
return;
}
if (lflag) {
printf("\n%s: ", line+1);
col = strlen(line+1) + 2;
prank(rank);
blankfill(JOBCOL);
printf(" [job %s]\n", cf+3);
} else {
col = 0;
prank(rank);
blankfill(OWNCOL);
printf("%-10s %-3d ", line+1, atoi(cf+3));
col += 16;
first = 1;
}
continue;
default: /* some format specifer and file name? */
if (line[0] < 'a' || line[0] > 'z')
continue;
if (j == 0 || strcmp(file, line+1) != 0)
strcpy(file, line+1);
j++;
continue;
case 'N':
show(line+1, file, j);
file[0] = '\0';
j = 0;
}
}
fclose(cfp);
if (!lflag) {
blankfill(SIZCOL);
printf("%D bytes\n", totsize);
totsize = 0;
}
}
inlist(name, file)
char *name, *file;
{
register int *r, n;
register char **u, *cp;
if (users == 0 && requests == 0)
return(1);
/*
* Check to see if it's in the user list
*/
for (u = user; u < &user[users]; u++)
if (!strcmp(*u, name))
return(1);
/*
* Check the request list
*/
for (n = 0, cp = file+3; isdigit(*cp); )
n = n * 10 + (*cp++ - '0');
for (r = requ; r < &requ[requests]; r++)
if (*r == n && !strcmp(cp, from))
return(1);
return(0);
}
show(nfile, file, copies)
register char *nfile, *file;
{
if (strcmp(nfile, " ") == 0)
nfile = "(standard input)";
if (lflag)
ldump(nfile, file, copies);
else
dump(nfile, file, copies);
}
/*
* Fill the line with blanks to the specified column
*/
blankfill(n)
register int n;
{
while (col++ < n)
putchar(' ');
}
/*
* Give the abbreviated dump of the file names
*/
dump(nfile, file, copies)
char *nfile, *file;
{
register short n, fill;
struct stat lbuf;
/*
* Print as many files as will fit
* (leaving room for the total size)
*/
fill = first ? 0 : 2; /* fill space for ``, '' */
if (((n = strlen(nfile)) + col + fill) >= SIZCOL-4) {
if (col < SIZCOL) {
printf(" ..."), col += 4;
blankfill(SIZCOL);
}
} else {
if (first)
first = 0;
else
printf(", ");
printf("%s", nfile);
col += n+fill;
}
if (*file && !stat(file, &lbuf))
totsize += copies * lbuf.st_size;
}
/*
* Print the long info about the file
*/
ldump(nfile, file, copies)
char *nfile, *file;
{
struct stat lbuf;
putchar('\t');
if (copies > 1)
printf("%-2d copies of %-19s", copies, nfile);
else
printf("%-32s", nfile);
if (*file && !stat(file, &lbuf))
printf(" %D bytes", lbuf.st_size);
else
printf(" ??? bytes");
putchar('\n');
}
/*
* Print the job's rank in the queue,
* update col for screen management
*/
prank(n)
{
char line[100];
static char *r[] = {
"th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th"
};
if (n == 0) {
printf("active");
col += 6;
return;
}
if ((n/10) == 1)
(void) sprintf(line, "%dth", n);
else
(void) sprintf(line, "%d%s", n, r[n%10]);
col += strlen(line);
printf("%s", line);
}