1 #ifndef lint
2 static char sccsid[] = "@(#)displayq.c	4.9 (Berkeley) 07/17/83";
3 #endif
4 
5 /*
6  * Routines to display the state of the queue.
7  */
8 
9 #include "lp.h"
10 
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 */
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 
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 */
32 
33 static char	*head0 = "Rank   Owner      Job  Files";
34 static char	*head1 = "Total Size\n";
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 
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)
59 		RP = DEFLP;
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");
90 		fd = getport(RM);
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");
111 	if (stat(LO, &statb) >= 0 && (statb.st_mode & 010)) {
112 		if (sendtorem)
113 			printf("\n%s: ", host);
114 		printf("Warning: %s queue is turned off\n", printer);
115 	}
116 	if (nitems == 0) {
117 		if (!sendtorem)
118 			printf("no entries\n");
119 		return(0);
120 	}
121 	fp = fopen(LO, "r");
122 	if (fp == NULL)
123 		warn();
124 	else {
125 		register char *cp;
126 
127 		/* get daemon pid */
128 		cp = current;
129 		while ((*cp = getc(fp)) != EOF && *cp != '\n')
130 			cp++;
131 		*cp = '\0';
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);
156 	}
157 	/*
158 	 * Now, examine the control files and print out the jobs to
159 	 * be done for each user.
160 	 */
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 
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 
188 /*
189  * Print the header for the short listing format
190  */
191 static
192 header()
193 {
194 	printf(head0);
195 	col = strlen(head0)+1;
196 	blankfill(SIZCOL);
197 	printf(head1);
198 }
199 
200 static
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 
263 static
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 
289 static
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  */
304 static
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  */
315 static
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  */
347 static
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  */
369 static
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 }
389