1 #ifndef lint
2 static char sccsid[] = "@(#)displayq.c	4.10 (Berkeley) 01/30/84";
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 (i <= 0 || 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 	int i, fd;
179 
180 	if (sendtorem)
181 		printf("\n%s: ", host);
182 	if (stat(LO, &statb) >= 0 && (statb.st_mode & 0100)) {
183 		printf("Warning: %s is down: ", printer);
184 		fd = open(ST, O_RDONLY);
185 		if (fd >= 0) {
186 			(void) flock(fd, LOCK_SH);
187 			while ((i = read(fd, line, sizeof(line))) > 0)
188 				(void) fwrite(line, 1, i, stdout);
189 			(void) close(fd);	/* unlocks as well */
190 		} else
191 			putchar('\n');
192 	} else
193 		printf("Warning: no daemon present\n");
194 	current[0] = '\0';
195 }
196 
197 /*
198  * Print the header for the short listing format
199  */
200 static
201 header()
202 {
203 	printf(head0);
204 	col = strlen(head0)+1;
205 	blankfill(SIZCOL);
206 	printf(head1);
207 }
208 
209 static
210 inform(cf)
211 	char *cf;
212 {
213 	register int j, k;
214 	register char *cp;
215 	FILE *cfp;
216 
217 	/*
218 	 * There's a chance the control file has gone away
219 	 * in the meantime; if this is the case just keep going
220 	 */
221 	if ((cfp = fopen(cf, "r")) == NULL)
222 		return;
223 
224 	if (rank < 0)
225 		rank = 0;
226 	if (sendtorem || garbage || strcmp(cf, current))
227 		rank++;
228 	j = 0;
229 	while (getline(cfp)) {
230 		switch (line[0]) {
231 		case 'P': /* Was this file specified in the user's list? */
232 			if (!inlist(line+1, cf)) {
233 				fclose(cfp);
234 				return;
235 			}
236 			if (lflag) {
237 				printf("\n%s: ", line+1);
238 				col = strlen(line+1) + 2;
239 				prank(rank);
240 				blankfill(JOBCOL);
241 				printf(" [job %s]\n", cf+3);
242 			} else {
243 				col = 0;
244 				prank(rank);
245 				blankfill(OWNCOL);
246 				printf("%-10s %-3d  ", line+1, atoi(cf+3));
247 				col += 16;
248 				first = 1;
249 			}
250 			continue;
251 		default: /* some format specifer and file name? */
252 			if (line[0] < 'a' || line[0] > 'z')
253 				continue;
254 			if (j == 0 || strcmp(file, line+1) != 0)
255 				strcpy(file, line+1);
256 			j++;
257 			continue;
258 		case 'N':
259 			show(line+1, file, j);
260 			file[0] = '\0';
261 			j = 0;
262 		}
263 	}
264 	fclose(cfp);
265 	if (!lflag) {
266 		blankfill(SIZCOL);
267 		printf("%D bytes\n", totsize);
268 		totsize = 0;
269 	}
270 }
271 
272 static
273 inlist(name, file)
274 	char *name, *file;
275 {
276 	register int *r, n;
277 	register char **u, *cp;
278 
279 	if (users == 0 && requests == 0)
280 		return(1);
281 	/*
282 	 * Check to see if it's in the user list
283 	 */
284 	for (u = user; u < &user[users]; u++)
285 		if (!strcmp(*u, name))
286 			return(1);
287 	/*
288 	 * Check the request list
289 	 */
290 	for (n = 0, cp = file+3; isdigit(*cp); )
291 		n = n * 10 + (*cp++ - '0');
292 	for (r = requ; r < &requ[requests]; r++)
293 		if (*r == n && !strcmp(cp, from))
294 			return(1);
295 	return(0);
296 }
297 
298 static
299 show(nfile, file, copies)
300 	register char *nfile, *file;
301 {
302 	if (strcmp(nfile, " ") == 0)
303 		nfile = "(standard input)";
304 	if (lflag)
305 		ldump(nfile, file, copies);
306 	else
307 		dump(nfile, file, copies);
308 }
309 
310 /*
311  * Fill the line with blanks to the specified column
312  */
313 static
314 blankfill(n)
315 	register int n;
316 {
317 	while (col++ < n)
318 		putchar(' ');
319 }
320 
321 /*
322  * Give the abbreviated dump of the file names
323  */
324 static
325 dump(nfile, file, copies)
326 	char *nfile, *file;
327 {
328 	register short n, fill;
329 	struct stat lbuf;
330 
331 	/*
332 	 * Print as many files as will fit
333 	 *  (leaving room for the total size)
334 	 */
335 	 fill = first ? 0 : 2;	/* fill space for ``, '' */
336 	 if (((n = strlen(nfile)) + col + fill) >= SIZCOL-4) {
337 		if (col < SIZCOL) {
338 			printf(" ..."), col += 4;
339 			blankfill(SIZCOL);
340 		}
341 	} else {
342 		if (first)
343 			first = 0;
344 		else
345 			printf(", ");
346 		printf("%s", nfile);
347 		col += n+fill;
348 	}
349 	if (*file && !stat(file, &lbuf))
350 		totsize += copies * lbuf.st_size;
351 }
352 
353 /*
354  * Print the long info about the file
355  */
356 static
357 ldump(nfile, file, copies)
358 	char *nfile, *file;
359 {
360 	struct stat lbuf;
361 
362 	putchar('\t');
363 	if (copies > 1)
364 		printf("%-2d copies of %-19s", copies, nfile);
365 	else
366 		printf("%-32s", nfile);
367 	if (*file && !stat(file, &lbuf))
368 		printf(" %D bytes", lbuf.st_size);
369 	else
370 		printf(" ??? bytes");
371 	putchar('\n');
372 }
373 
374 /*
375  * Print the job's rank in the queue,
376  *   update col for screen management
377  */
378 static
379 prank(n)
380 {
381 	char line[100];
382 	static char *r[] = {
383 		"th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th"
384 	};
385 
386 	if (n == 0) {
387 		printf("active");
388 		col += 6;
389 		return;
390 	}
391 	if ((n/10) == 1)
392 		(void) sprintf(line, "%dth", n);
393 	else
394 		(void) sprintf(line, "%d%s", n, r[n%10]);
395 	col += strlen(line);
396 	printf("%s", line);
397 }
398