1 #ifndef lint
2 static char sccsid[] = "@(#)displayq.c	4.12 (Berkeley) 07/24/84";
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 int	lflag;		/* long output option */
24 char	current[40];	/* current file being printed */
25 int	garbage;	/* # of garbage cf files */
26 int	rank;		/* order to be printed (-1=none, 0=active) */
27 long	totsize;	/* total print job size in bytes */
28 int	first;		/* first file in ``files'' column? */
29 int	col;		/* column on screen */
30 int	sendtorem;	/* are we sending to a remote? */
31 char	file[132];	/* print file name */
32 
33 char	*head0 = "Rank   Owner      Job  Files";
34 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) {
112 		if ((statb.st_mode & 0110) && sendtorem)
113 			printf("\n");
114 		if (statb.st_mode & 0100) {
115 			if (sendtorem)
116 				printf("%s: ", host);
117 			printf("Warning: %s is down: ", printer);
118 			fd = open(ST, O_RDONLY);
119 			if (fd >= 0) {
120 				(void) flock(fd, LOCK_SH);
121 				while ((i = read(fd, line, sizeof(line))) > 0)
122 					(void) fwrite(line, 1, i, stdout);
123 				(void) close(fd);	/* unlocks as well */
124 			} else
125 				putchar('\n');
126 		}
127 		if (statb.st_mode & 010) {
128 			if (sendtorem)
129 				printf("%s: ", host);
130 			printf("Warning: %s queue is turned off\n", printer);
131 		}
132 	}
133 	if (nitems == 0) {
134 		if (!sendtorem)
135 			printf("no entries\n");
136 		return(0);
137 	}
138 	fp = fopen(LO, "r");
139 	if (fp == NULL)
140 		warn();
141 	else {
142 		register char *cp;
143 
144 		/* get daemon pid */
145 		cp = current;
146 		while ((*cp = getc(fp)) != EOF && *cp != '\n')
147 			cp++;
148 		*cp = '\0';
149 		i = atoi(current);
150 		if (i <= 0 || kill(i, 0) < 0)
151 			warn();
152 		else {
153 			/* read current file name */
154 			cp = current;
155 			while ((*cp = getc(fp)) != EOF && *cp != '\n')
156 				cp++;
157 			*cp = '\0';
158 			/*
159 			 * Print the status file.
160 			 */
161 			if (sendtorem)
162 				printf("\n%s: ", host);
163 			fd = open(ST, O_RDONLY);
164 			if (fd >= 0) {
165 				(void) flock(fd, LOCK_SH);
166 				while ((i = read(fd, line, sizeof(line))) > 0)
167 					(void) fwrite(line, 1, i, stdout);
168 				(void) close(fd);	/* unlocks as well */
169 			} else
170 				putchar('\n');
171 		}
172 		(void) fclose(fp);
173 	}
174 	/*
175 	 * Now, examine the control files and print out the jobs to
176 	 * be done for each user.
177 	 */
178 	if (!lflag)
179 		header();
180 	for (i = 0; i < nitems; i++) {
181 		q = queue[i];
182 		inform(q->q_name);
183 		free(q);
184 	}
185 	free(queue);
186 	return(nitems-garbage);
187 }
188 
189 /*
190  * Print a warning message if there is no daemon present.
191  */
192 warn()
193 {
194 	if (sendtorem)
195 		printf("\n%s: ", host);
196 	printf("Warning: no daemon present\n");
197 	current[0] = '\0';
198 }
199 
200 /*
201  * Print the header for the short listing format
202  */
203 header()
204 {
205 	printf(head0);
206 	col = strlen(head0)+1;
207 	blankfill(SIZCOL);
208 	printf(head1);
209 }
210 
211 inform(cf)
212 	char *cf;
213 {
214 	register int j, k;
215 	register char *cp;
216 	FILE *cfp;
217 
218 	/*
219 	 * There's a chance the control file has gone away
220 	 * in the meantime; if this is the case just keep going
221 	 */
222 	if ((cfp = fopen(cf, "r")) == NULL)
223 		return;
224 
225 	if (rank < 0)
226 		rank = 0;
227 	if (sendtorem || garbage || strcmp(cf, current))
228 		rank++;
229 	j = 0;
230 	while (getline(cfp)) {
231 		switch (line[0]) {
232 		case 'P': /* Was this file specified in the user's list? */
233 			if (!inlist(line+1, cf)) {
234 				fclose(cfp);
235 				return;
236 			}
237 			if (lflag) {
238 				printf("\n%s: ", line+1);
239 				col = strlen(line+1) + 2;
240 				prank(rank);
241 				blankfill(JOBCOL);
242 				printf(" [job %s]\n", cf+3);
243 			} else {
244 				col = 0;
245 				prank(rank);
246 				blankfill(OWNCOL);
247 				printf("%-10s %-3d  ", line+1, atoi(cf+3));
248 				col += 16;
249 				first = 1;
250 			}
251 			continue;
252 		default: /* some format specifer and file name? */
253 			if (line[0] < 'a' || line[0] > 'z')
254 				continue;
255 			if (j == 0 || strcmp(file, line+1) != 0)
256 				strcpy(file, line+1);
257 			j++;
258 			continue;
259 		case 'N':
260 			show(line+1, file, j);
261 			file[0] = '\0';
262 			j = 0;
263 		}
264 	}
265 	fclose(cfp);
266 	if (!lflag) {
267 		blankfill(SIZCOL);
268 		printf("%D bytes\n", totsize);
269 		totsize = 0;
270 	}
271 }
272 
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 show(nfile, file, copies)
299 	register char *nfile, *file;
300 {
301 	if (strcmp(nfile, " ") == 0)
302 		nfile = "(standard input)";
303 	if (lflag)
304 		ldump(nfile, file, copies);
305 	else
306 		dump(nfile, file, copies);
307 }
308 
309 /*
310  * Fill the line with blanks to the specified column
311  */
312 blankfill(n)
313 	register int n;
314 {
315 	while (col++ < n)
316 		putchar(' ');
317 }
318 
319 /*
320  * Give the abbreviated dump of the file names
321  */
322 dump(nfile, file, copies)
323 	char *nfile, *file;
324 {
325 	register short n, fill;
326 	struct stat lbuf;
327 
328 	/*
329 	 * Print as many files as will fit
330 	 *  (leaving room for the total size)
331 	 */
332 	 fill = first ? 0 : 2;	/* fill space for ``, '' */
333 	 if (((n = strlen(nfile)) + col + fill) >= SIZCOL-4) {
334 		if (col < SIZCOL) {
335 			printf(" ..."), col += 4;
336 			blankfill(SIZCOL);
337 		}
338 	} else {
339 		if (first)
340 			first = 0;
341 		else
342 			printf(", ");
343 		printf("%s", nfile);
344 		col += n+fill;
345 	}
346 	if (*file && !stat(file, &lbuf))
347 		totsize += copies * lbuf.st_size;
348 }
349 
350 /*
351  * Print the long info about the file
352  */
353 ldump(nfile, file, copies)
354 	char *nfile, *file;
355 {
356 	struct stat lbuf;
357 
358 	putchar('\t');
359 	if (copies > 1)
360 		printf("%-2d copies of %-19s", copies, nfile);
361 	else
362 		printf("%-32s", nfile);
363 	if (*file && !stat(file, &lbuf))
364 		printf(" %D bytes", lbuf.st_size);
365 	else
366 		printf(" ??? bytes");
367 	putchar('\n');
368 }
369 
370 /*
371  * Print the job's rank in the queue,
372  *   update col for screen management
373  */
374 prank(n)
375 {
376 	char line[100];
377 	static char *r[] = {
378 		"th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th"
379 	};
380 
381 	if (n == 0) {
382 		printf("active");
383 		col += 6;
384 		return;
385 	}
386 	if ((n/10) == 1)
387 		(void) sprintf(line, "%dth", n);
388 	else
389 		(void) sprintf(line, "%d%s", n, r[n%10]);
390 	col += strlen(line);
391 	printf("%s", line);
392 }
393