[unix-history] / usr / src / usr.lib / lpr / displayq.c

#ifndef lint
static char sccsid[] = "@(#)displayq.c	4.9 (Berkeley) 7/17/83";
#endif

/*
 * 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 */

static int	lflag;		/* long output option */
static char	current[40];	/* current file being printed */
static int	garbage;	/* # of garbage cf files */
static int	rank;		/* order to be printed (-1=none, 0=active) */
static long	totsize;	/* total print job size in bytes */
static int	first;		/* first file in ``files'' column? */
static int	col;		/* column on screen */
static int	sendtorem;	/* are we sending to a remote? */
static char	file[132];	/* print file name */

static char	*head0 = "Rank   Owner      Job  Files";
static 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;

	lflag = format;
	totsize = 0;
	rank = -1;

	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);

	/*
	 * 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 && (statb.st_mode & 010)) {
		if (sendtorem)
			printf("\n%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 (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()
{
	struct stat statb;

	if (sendtorem)
		printf("\n%s: ", host);
	if (stat(LO, &statb) >= 0 && (statb.st_mode & 0100))
		printf("Warning: %s is down\n", printer);
	else
		printf("Warning: no daemon present\n");
	current[0] = '\0';
}

/*
 * Print the header for the short listing format
 */
static
header()
{
	printf(head0);
	col = strlen(head0)+1;
	blankfill(SIZCOL);
	printf(head1);
}

static
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;
	}
}

static
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);
}

static
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
 */
static
blankfill(n)
	register int n;
{
	while (col++ < n)
		putchar(' ');
}

/*
 * Give the abbreviated dump of the file names
 */
static
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
 */
static
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
 */
static
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);
}
Commit	Line	Data
5f84f8f0	1	#ifndef lint
0f4556f1	2	static char sccsid[] = "@(#)displayq.c 4.9 (Berkeley) 7/17/83";
5f84f8f0 SL	3	#endif
5f84f8f0 SL	4
41d14893 RC	5	/*
	6	* Routines to display the state of the queue.
	7	*/
	8
	9	#include "lp.h"
	10
c6d1c018 RC	11	#define JOBCOL 40 /* column for job # in -l format */
	12	#define OWNCOL 7 /* start of Owner column in normal */
	13	#define SIZCOL 62 /* start of Size column in normal */
41d14893 RC	14
	15	/*
	16	* Stuff for handling job specifications
	17	*/
	18	extern char user[]; / users to process */
	19	extern int users; /* # of users in user array */
	20	extern int requ[]; /* job number of spool entries */
	21	extern int requests; /* # of spool requests */
	22
54266d1f RC	23	static int lflag; /* long output option */
	24	static char current[40]; /* current file being printed */
	25	static int garbage; /* # of garbage cf files */
	26	static int rank; /* order to be printed (-1=none, 0=active) */
	27	static long totsize; /* total print job size in bytes */
	28	static int first; /* first file in ``files'' column? */
	29	static int col; /* column on screen */
	30	static int sendtorem; /* are we sending to a remote? */
	31	static char file[132]; /* print file name */
41d14893	32
54266d1f RC	33	static char *head0 = "Rank Owner Job Files";
54266d1f RC	34	static char *head1 = "Total Size\n";
41d14893 RC	35
	36	/*
	37	* Display the current state of the queue. Format = 1 if long format.
	38	*/
	39	displayq(format)
	40	int format;
	41	{
	42	register struct queue *q;
	43	register int i, nitems, fd;
	44	struct queue **queue;
	45	struct stat statb;
	46	FILE *fp;
	47
41d14893 RC	48	lflag = format;
	49	totsize = 0;
	50	rank = -1;
	51
	52	if ((i = pgetent(line, printer)) < 0)
	53	fatal("cannot open printer description file");
	54	else if (i == 0)
	55	fatal("unknown printer");
	56	if ((LP = pgetstr("lp", &bp)) == NULL)
	57	LP = DEFDEVLP;
	58	if ((RP = pgetstr("rp", &bp)) == NULL)
755aa7aa	59	RP = DEFLP;
41d14893 RC	60	if ((SD = pgetstr("sd", &bp)) == NULL)
	61	SD = DEFSPOOL;
	62	if ((LO = pgetstr("lo", &bp)) == NULL)
	63	LO = DEFLOCK;
	64	if ((ST = pgetstr("st", &bp)) == NULL)
	65	ST = DEFSTAT;
	66	RM = pgetstr("rm", &bp);
	67
	68	/*
	69	* If there is no local printer, then print the queue on
	70	* the remote machine and then what's in the queue here.
	71	* Note that a file in transit may not show up in either queue.
	72	*/
	73	if (*LP == '\0') {
	74	register char *cp;
	75	char c;
	76
	77	sendtorem++;
	78	(void) sprintf(line, "%c%s", format + '\3', RP);
	79	cp = line;
	80	for (i = 0; i < requests; i++) {
	81	cp += strlen(cp);
	82	(void) sprintf(cp, " %d", requ[i]);
	83	}
	84	for (i = 0; i < users; i++) {
	85	cp += strlen(cp);
	86	*cp++ = ' ';
	87	strcpy(cp, user[i]);
	88	}
	89	strcat(line, "\n");
e923dc6a	90	fd = getport(RM);
41d14893 RC	91	if (fd < 0) {
	92	if (from != host)
	93	printf("%s: ", host);
	94	printf("connection to %s is down\n", RM);
	95	} else {
	96	i = strlen(line);
	97	if (write(fd, line, i) != i)
	98	fatal("Lost connection");
	99	while ((i = read(fd, line, sizeof(line))) > 0)
	100	(void) fwrite(line, 1, i, stdout);
	101	(void) close(fd);
	102	}
	103	}
	104	/*
	105	* Find all the control files in the spooling directory
	106	*/
	107	if (chdir(SD) < 0)
	108	fatal("cannot chdir to spooling directory");
	109	if ((nitems = getq(&queue)) < 0)
	110	fatal("cannot examine spooling area\n");
9729d3b0	111	if (stat(LO, &statb) >= 0 && (statb.st_mode & 010)) {
41d14893 RC	112	if (sendtorem)
41d14893 RC	113	printf("\n%s: ", host);
9729d3b0 RC	114	printf("Warning: %s queue is turned off\n", printer);
	115	}
	116	if (nitems == 0) {
	117	if (!sendtorem)
	118	printf("no entries\n");
41d14893 RC	119	return(0);
	120	}
	121	fp = fopen(LO, "r");
8fed920b RC	122	if (fp == NULL)
	123	warn();
	124	else {
	125	register char *cp;
	126
	127	/* get daemon pid */
	128	cp = current;
41d14893 RC	129	while ((cp = getc(fp)) != EOF && cp != '\n')
	130	cp++;
	131	*cp = '\0';
8fed920b RC	132	i = atoi(current);
	133	if (kill(i, 0) < 0)
	134	warn();
	135	else {
	136	/* read current file name */
	137	cp = current;
	138	while ((cp = getc(fp)) != EOF && cp != '\n')
	139	cp++;
	140	*cp = '\0';
	141	/*
	142	* Print the status file.
	143	*/
	144	if (sendtorem)
	145	printf("\n%s: ", host);
	146	fd = open(ST, O_RDONLY);
	147	if (fd >= 0) {
	148	(void) flock(fd, LOCK_SH);
	149	while ((i = read(fd, line, sizeof(line))) > 0)
	150	(void) fwrite(line, 1, i, stdout);
	151	(void) close(fd); /* unlocks as well */
	152	} else
	153	putchar('\n');
	154	}
	155	(void) fclose(fp);
41d14893 RC	156	}
	157	/*
	158	* Now, examine the control files and print out the jobs to
	159	* be done for each user.
	160	*/
41d14893 RC	161	if (!lflag)
	162	header();
	163	for (i = 0; i < nitems; i++) {
	164	q = queue[i];
	165	inform(q->q_name);
	166	free(q);
	167	}
	168	free(queue);
	169	return(nitems-garbage);
	170	}
	171
8fed920b RC	172	/*
	173	* Print a warning message if there is no daemon present.
	174	*/
	175	warn()
	176	{
	177	struct stat statb;
	178
	179	if (sendtorem)
	180	printf("\n%s: ", host);
	181	if (stat(LO, &statb) >= 0 && (statb.st_mode & 0100))
	182	printf("Warning: %s is down\n", printer);
	183	else
	184	printf("Warning: no daemon present\n");
	185	current[0] = '\0';
	186	}
	187
41d14893 RC	188	/*
	189	* Print the header for the short listing format
	190	*/
54266d1f	191	static
41d14893 RC	192	header()
	193	{
	194	printf(head0);
	195	col = strlen(head0)+1;
	196	blankfill(SIZCOL);
	197	printf(head1);
	198	}
	199
54266d1f	200	static
41d14893 RC	201	inform(cf)
	202	char *cf;
	203	{
	204	register int j, k;
	205	register char *cp;
	206	FILE *cfp;
	207
	208	/*
	209	* There's a chance the control file has gone away
	210	* in the meantime; if this is the case just keep going
	211	*/
	212	if ((cfp = fopen(cf, "r")) == NULL)
	213	return;
	214
	215	if (rank < 0)
	216	rank = 0;
	217	if (sendtorem \|\| garbage \|\| strcmp(cf, current))
	218	rank++;
	219	j = 0;
	220	while (getline(cfp)) {
	221	switch (line[0]) {
	222	case 'P': /* Was this file specified in the user's list? */
	223	if (!inlist(line+1, cf)) {
	224	fclose(cfp);
	225	return;
	226	}
	227	if (lflag) {
	228	printf("\n%s: ", line+1);
	229	col = strlen(line+1) + 2;
	230	prank(rank);
	231	blankfill(JOBCOL);
	232	printf(" [job %s]\n", cf+3);
	233	} else {
	234	col = 0;
	235	prank(rank);
	236	blankfill(OWNCOL);
	237	printf("%-10s %-3d ", line+1, atoi(cf+3));
	238	col += 16;
	239	first = 1;
	240	}
	241	continue;
	242	default: /* some format specifer and file name? */
	243	if (line[0] < 'a' \|\| line[0] > 'z')
	244	continue;
	245	if (j == 0 \|\| strcmp(file, line+1) != 0)
	246	strcpy(file, line+1);
	247	j++;
	248	continue;
	249	case 'N':
	250	show(line+1, file, j);
	251	file[0] = '\0';
	252	j = 0;
	253	}
	254	}
	255	fclose(cfp);
	256	if (!lflag) {
	257	blankfill(SIZCOL);
	258	printf("%D bytes\n", totsize);
	259	totsize = 0;
	260	}
	261	}
	262
54266d1f	263	static
41d14893 RC	264	inlist(name, file)
	265	char name, file;
	266	{
	267	register int *r, n;
	268	register char *u, cp;
	269
	270	if (users == 0 && requests == 0)
	271	return(1);
	272	/*
	273	* Check to see if it's in the user list
	274	*/
	275	for (u = user; u < &user[users]; u++)
	276	if (!strcmp(*u, name))
	277	return(1);
	278	/*
	279	* Check the request list
	280	*/
	281	for (n = 0, cp = file+3; isdigit(*cp); )
	282	n = n * 10 + (*cp++ - '0');
	283	for (r = requ; r < &requ[requests]; r++)
	284	if (*r == n && !strcmp(cp, from))
	285	return(1);
	286	return(0);
	287	}
	288
54266d1f	289	static
41d14893 RC	290	show(nfile, file, copies)
	291	register char nfile, file;
	292	{
	293	if (strcmp(nfile, " ") == 0)
	294	nfile = "(standard input)";
	295	if (lflag)
	296	ldump(nfile, file, copies);
	297	else
	298	dump(nfile, file, copies);
	299	}
	300
	301	/*
	302	* Fill the line with blanks to the specified column
	303	*/
54266d1f	304	static
41d14893 RC	305	blankfill(n)
	306	register int n;
	307	{
	308	while (col++ < n)
	309	putchar(' ');
	310	}
	311
	312	/*
	313	* Give the abbreviated dump of the file names
	314	*/
54266d1f	315	static
41d14893 RC	316	dump(nfile, file, copies)
	317	char nfile, file;
	318	{
	319	register short n, fill;
	320	struct stat lbuf;
	321
	322	/*
	323	* Print as many files as will fit
	324	* (leaving room for the total size)
	325	*/
	326	fill = first ? 0 : 2; /* fill space for ``, '' */
	327	if (((n = strlen(nfile)) + col + fill) >= SIZCOL-4) {
	328	if (col < SIZCOL) {
	329	printf(" ..."), col += 4;
	330	blankfill(SIZCOL);
	331	}
	332	} else {
	333	if (first)
	334	first = 0;
	335	else
	336	printf(", ");
	337	printf("%s", nfile);
	338	col += n+fill;
	339	}
	340	if (*file && !stat(file, &lbuf))
	341	totsize += copies * lbuf.st_size;
	342	}
	343
	344	/*
	345	* Print the long info about the file
	346	*/
54266d1f	347	static
41d14893 RC	348	ldump(nfile, file, copies)
	349	char nfile, file;
	350	{
	351	struct stat lbuf;
	352
	353	putchar('\t');
	354	if (copies > 1)
	355	printf("%-2d copies of %-19s", copies, nfile);
	356	else
	357	printf("%-32s", nfile);
	358	if (*file && !stat(file, &lbuf))
	359	printf(" %D bytes", lbuf.st_size);
	360	else
	361	printf(" ??? bytes");
	362	putchar('\n');
	363	}
	364
	365	/*
	366	* Print the job's rank in the queue,
	367	* update col for screen management
	368	*/
54266d1f	369	static
41d14893 RC	370	prank(n)
	371	{
	372	char line[100];
	373	static char *r[] = {
	374	"th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th"
	375	};
	376
	377	if (n == 0) {
	378	printf("active");
	379	col += 6;
	380	return;
	381	}
	382	if ((n/10) == 1)
	383	(void) sprintf(line, "%dth", n);
	384	else
	385	(void) sprintf(line, "%d%s", n, r[n%10]);
	386	col += strlen(line);
	387	printf("%s", line);
	388	}