Commit | Line | Data |
---|---|---|
54266d1f | 1 | /* printjob.c 4.6 83/06/02 */ |
df7d5679 RC |
2 | /* |
3 | * printjob -- print jobs in the queue. | |
4 | * | |
5 | * NOTE: the lock file is used to pass information to lpq and lprm. | |
6 | * it does not need to be removed because file locks are dynamic. | |
7 | */ | |
8 | ||
9 | #include "lp.h" | |
10 | ||
54266d1f RC |
11 | #define DORETURN 0 /* absorb fork error */ |
12 | #define DOABORT 1 /* abort if dofork fails */ | |
df7d5679 | 13 | |
54266d1f RC |
14 | static char title[80]; /* ``pr'' title */ |
15 | static FILE *cfp; /* control file */ | |
16 | static int pfd; /* printer file descriptor */ | |
17 | static int ofd; /* output filter file descriptor */ | |
18 | static int lfd; /* lock file descriptor */ | |
19 | static int pid; /* pid of lpd process */ | |
20 | static int prchild; /* id of pr process */ | |
21 | static int child; /* id of any filters */ | |
22 | static int ofilter; /* id of output filter, if any */ | |
23 | static int tof; /* true if at top of form */ | |
24 | static int remote; /* true if sending files to remote */ | |
df7d5679 | 25 | |
54266d1f RC |
26 | static char logname[32]; /* user's login name */ |
27 | static char jobname[32]; /* job or file name */ | |
28 | static char class[32]; /* classification field */ | |
29 | static char width[10] = "-w"; /* page width in characters */ | |
30 | static char length[10] = "-l"; /* page length in lines */ | |
31 | static char pxwidth[10] = "-x"; /* page width in pixels */ | |
32 | static char pxlength[10] = "-y"; /* page length in pixels */ | |
33 | static char indent[10] = "-i0"; /* indentation size in characters */ | |
df7d5679 RC |
34 | |
35 | printjob() | |
36 | { | |
37 | struct stat stb; | |
38 | register struct queue *q, **qp; | |
39 | struct queue **queue; | |
40 | register int i, nitems; | |
41 | long pidoff; | |
42 | extern int onintr(); | |
43 | ||
df7d5679 | 44 | init(); /* set up capabilities */ |
54266d1f RC |
45 | (void) close(1); /* set up log file */ |
46 | (void) close(2); | |
47 | if (open(LF, FWRONLY|FAPPEND, 0) < 0) | |
48 | (void) open("/dev/null", FWRONLY); | |
49 | dup(1); | |
88f026f7 | 50 | pid = getpid(); /* for use with lprm */ |
df7d5679 | 51 | setpgrp(0, pid); |
88f026f7 | 52 | sigset(SIGINT, onintr); |
df7d5679 RC |
53 | |
54 | /* | |
55 | * uses short form file names | |
56 | */ | |
57 | if (chdir(SD) < 0) { | |
58 | log("cannot chdir to %s", SD); | |
59 | exit(1); | |
60 | } | |
88f026f7 RC |
61 | if (stat(LO, &stb) == 0 && (stb.st_mode & 0100)) |
62 | exit(0); /* printing disabled */ | |
df7d5679 RC |
63 | if ((lfd = open(LO, FWRONLY|FCREATE|FTRUNCATE|FEXLOCK|FNBLOCK, 0664)) < 0) { |
64 | if (errno == EWOULDBLOCK) /* active deamon present */ | |
65 | exit(0); | |
66 | log("cannot create %s", LO); | |
67 | exit(1); | |
68 | } | |
69 | /* | |
70 | * write process id for others to know | |
71 | */ | |
72 | sprintf(line, "%u\n", pid); | |
73 | pidoff = i = strlen(line); | |
88f026f7 | 74 | if (write(lfd, line, i) != i) { |
df7d5679 | 75 | log("cannot write daemon pid"); |
df7d5679 RC |
76 | exit(1); |
77 | } | |
df7d5679 RC |
78 | /* |
79 | * search the spool directory for work and sort by queue order. | |
80 | */ | |
df7d5679 RC |
81 | if ((nitems = getq(&queue)) < 0) { |
82 | log("can't scan spool directory %s", SD); | |
83 | exit(1); | |
84 | } | |
88f026f7 | 85 | if (nitems == 0) /* no work to do */ |
df7d5679 | 86 | exit(0); |
88f026f7 RC |
87 | openpr(); /* open printer or remote */ |
88 | again: | |
df7d5679 RC |
89 | /* |
90 | * we found something to do now do it -- | |
91 | * write the name of the current control file into the lock file | |
92 | * so the spool queue program can tell what we're working on | |
93 | */ | |
94 | for (qp = queue; nitems--; free((char *) q)) { | |
95 | q = *qp++; | |
96 | if (stat(q->q_name, &stb) < 0) | |
97 | continue; | |
88f026f7 | 98 | restart: |
df7d5679 RC |
99 | (void) lseek(lfd, pidoff, 0); |
100 | (void) sprintf(line, "%s\n", q->q_name); | |
101 | i = strlen(line); | |
102 | if (write(lfd, line, i) != i) | |
103 | log("can't write (%d) control file name", errno); | |
104 | if (!remote) | |
105 | i = printit(q->q_name); | |
106 | else | |
107 | i = sendit(q->q_name); | |
88f026f7 RC |
108 | /* |
109 | * Check to see if we are supposed to stop printing. | |
110 | */ | |
111 | if (stat(LO, &stb) == 0 && (stb.st_mode & 0100)) | |
112 | goto done; | |
113 | /* | |
114 | * Check to see if we should try reprinting the job. | |
115 | */ | |
116 | if (i > 0) { | |
df7d5679 RC |
117 | log("restarting"); |
118 | if (ofilter > 0) { | |
119 | kill(ofilter, SIGCONT); /* to be sure */ | |
120 | (void) close(ofd); | |
121 | while ((i = wait(0)) > 0 && i != ofilter) | |
122 | ; | |
123 | ofilter = 0; | |
124 | } | |
88f026f7 RC |
125 | (void) close(pfd); /* close printer */ |
126 | (void) lseek(lfd, pidoff, 0); | |
127 | if (write(lfd, "\n", 1) != 1) | |
128 | log("can't write (%d) control file name", errno); | |
129 | openpr(); /* try to reopen printer */ | |
df7d5679 RC |
130 | goto restart; |
131 | } | |
132 | } | |
133 | free((char *) queue); | |
88f026f7 RC |
134 | /* |
135 | * search the spool directory for more work. | |
136 | */ | |
137 | if ((nitems = getq(&queue)) < 0) { | |
138 | log("can't scan spool directory %s", SD); | |
139 | exit(1); | |
140 | } | |
141 | if (nitems == 0) { /* no more work to do */ | |
142 | done: | |
143 | if (!SF && !tof) | |
144 | (void) write(ofd, FF, strlen(FF)); | |
145 | if (TR != NULL) /* output trailer */ | |
146 | (void) write(ofd, TR, strlen(TR)); | |
147 | exit(0); | |
148 | } | |
df7d5679 RC |
149 | goto again; |
150 | } | |
151 | ||
152 | char fonts[4][50]; /* fonts for troff */ | |
153 | ||
154 | static char ifonts[4][18] = { | |
155 | "/usr/lib/vfont/R", | |
156 | "/usr/lib/vfont/I", | |
157 | "/usr/lib/vfont/B", | |
158 | "/usr/lib/vfont/S" | |
159 | }; | |
160 | ||
161 | /* | |
162 | * The remaining part is the reading of the control file (cf) | |
163 | * and performing the various actions. | |
164 | * Returns 0 if everthing was OK, 1 if we should try to reprint the job and | |
165 | * -1 if a non-recoverable error occured. | |
166 | */ | |
54266d1f | 167 | static |
df7d5679 RC |
168 | printit(file) |
169 | char *file; | |
170 | { | |
171 | register int i; | |
172 | int bombed = 0; | |
173 | ||
174 | /* | |
175 | * open control file | |
176 | */ | |
177 | if ((cfp = fopen(file, "r")) == NULL) { | |
178 | log("control file (%s) open failure <errno = %d>", file, errno); | |
179 | return(0); | |
180 | } | |
181 | /* | |
182 | * Reset troff fonts. | |
183 | */ | |
184 | for (i = 0; i < 4; i++) | |
185 | strcpy(fonts[i], ifonts[i]); | |
186 | ||
187 | /* | |
188 | * read the control file for work to do | |
189 | * | |
190 | * file format -- first character in the line is a command | |
191 | * rest of the line is the argument. | |
192 | * valid commands are: | |
193 | * | |
194 | * J -- "job name" on banner page | |
195 | * C -- "class name" on banner page | |
196 | * L -- "literal" user's name to print on banner | |
197 | * T -- "title" for pr | |
198 | * H -- "host name" of machine where lpr was done | |
199 | * P -- "person" user's login name | |
6bd17dac | 200 | * I -- "indent" amount to indent output |
df7d5679 RC |
201 | * f -- "file name" name of text file to print |
202 | * l -- "file name" text file with control chars | |
203 | * p -- "file name" text file to print with pr(1) | |
204 | * t -- "file name" troff(1) file to print | |
205 | * d -- "file name" dvi file to print | |
206 | * g -- "file name" plot(1G) file to print | |
207 | * v -- "file name" plain raster file to print | |
208 | * c -- "file name" cifplot file to print | |
209 | * 1 -- "R font file" for troff | |
210 | * 2 -- "I font file" for troff | |
211 | * 3 -- "B font file" for troff | |
212 | * 4 -- "S font file" for troff | |
213 | * N -- "name" of file (used by lpq) | |
214 | * U -- "unlink" name of file to remove | |
215 | * (after we print it. (Pass 2 only)). | |
216 | * M -- "mail" to user when done printing | |
217 | * | |
218 | * getline reads a line and expands tabs to blanks | |
219 | */ | |
220 | ||
221 | /* pass 1 */ | |
222 | ||
223 | while (getline(cfp)) | |
224 | switch (line[0]) { | |
225 | case 'H': | |
226 | strcpy(host, line+1); | |
227 | if (class[0] == '\0') | |
228 | strcpy(class, line+1); | |
229 | continue; | |
230 | ||
231 | case 'P': | |
232 | strcpy(logname, line+1); | |
88f026f7 RC |
233 | if (RS) { /* restricted */ |
234 | if (getpwnam(logname) == (struct passwd *)0) { | |
235 | bombed = 2; | |
236 | sendmail(bombed); | |
237 | goto pass2; | |
238 | } | |
239 | } | |
df7d5679 RC |
240 | continue; |
241 | ||
242 | case 'J': | |
243 | if (line[1] != '\0') | |
244 | strcpy(jobname, line+1); | |
245 | else | |
246 | strcpy(jobname, " "); | |
247 | continue; | |
248 | ||
249 | case 'C': | |
250 | if (line[1] != '\0') | |
251 | strcpy(class, line+1); | |
252 | else if (class[0] == '\0') | |
253 | gethostname(class, sizeof (class)); | |
254 | continue; | |
255 | ||
256 | case 'T': /* header title for pr */ | |
257 | strcpy(title, line+1); | |
258 | continue; | |
259 | ||
260 | case 'L': /* identification line */ | |
261 | if (!SH) | |
262 | banner(line+1, jobname); | |
263 | continue; | |
264 | ||
265 | case '1': /* troff fonts */ | |
266 | case '2': | |
267 | case '3': | |
268 | case '4': | |
269 | if (line[1] != '\0') | |
270 | strcpy(fonts[line[0]-'1'], line+1); | |
271 | continue; | |
272 | ||
273 | case 'W': /* page width */ | |
274 | strcpy(width+2, line+1); | |
275 | continue; | |
276 | ||
6bd17dac RC |
277 | case 'I': /* indent amount */ |
278 | strcpy(indent+2, line+1); | |
279 | continue; | |
280 | ||
df7d5679 RC |
281 | default: /* some file to print */ |
282 | if ((i = print(line[0], line+1)) > 0) { | |
283 | (void) fclose(cfp); | |
284 | return(1); | |
285 | } else if (i < 0) | |
286 | bombed = 1; | |
287 | title[0] = '\0'; | |
288 | continue; | |
289 | ||
df7d5679 RC |
290 | case 'N': |
291 | case 'U': | |
292 | case 'M': | |
293 | continue; | |
294 | } | |
295 | ||
296 | /* pass 2 */ | |
297 | ||
88f026f7 | 298 | pass2: |
df7d5679 RC |
299 | fseek(cfp, 0L, 0); |
300 | while (getline(cfp)) | |
301 | switch (line[0]) { | |
302 | case 'M': | |
88f026f7 RC |
303 | if (bombed != 2) /* already sent if 2 */ |
304 | sendmail(bombed); | |
df7d5679 RC |
305 | continue; |
306 | ||
307 | case 'U': | |
308 | (void) unlink(line+1); | |
309 | } | |
310 | /* | |
311 | * clean-up incase another control file exists | |
312 | */ | |
313 | (void) fclose(cfp); | |
314 | (void) unlink(file); | |
315 | return(0); | |
316 | } | |
317 | ||
318 | /* | |
319 | * Print a file. | |
320 | * Set up the chain [ PR [ | {IF, OF} ] ] or {IF, TF, CF, VF}. | |
321 | * Return -1 if a non-recoverable error occured, 1 if a recoverable error and | |
322 | * 0 if all is well. | |
323 | * Note: all filters take stdin as the file, stdout as the printer, | |
324 | * stderr as the log file, and must not ignore SIGINT. | |
325 | */ | |
54266d1f | 326 | static |
df7d5679 RC |
327 | print(format, file) |
328 | int format; | |
329 | char *file; | |
330 | { | |
331 | register int n, fi, fo; | |
332 | register char *prog; | |
333 | char *av[15], buf[BUFSIZ]; | |
334 | int pid, p[2], stopped = 0; | |
335 | union wait status; | |
336 | ||
337 | if ((fi = open(file, FRDONLY, 0)) < 0) { | |
338 | log("%s: open failure <errno = %d>", file, errno); | |
339 | return(-1); | |
340 | } | |
341 | if (!SF && !tof) { /* start on a fresh page */ | |
342 | (void) write(ofd, FF, strlen(FF)); | |
343 | tof = 1; | |
344 | } | |
345 | if (IF == NULL && (format == 'f' || format == 'l')) { | |
346 | tof = 0; | |
347 | while ((n = read(fi, buf, BUFSIZ)) > 0) | |
348 | if (write(ofd, buf, n) != n) { | |
349 | (void) close(fi); | |
350 | return(1); | |
351 | } | |
352 | (void) close(fi); | |
353 | return(0); | |
354 | } | |
355 | switch (format) { | |
356 | case 'p': /* print file using 'pr' */ | |
357 | if (IF == NULL) { /* use output filter */ | |
358 | prog = PR; | |
359 | av[0] = "pr"; | |
360 | av[1] = width; | |
361 | av[2] = length; | |
362 | av[3] = "-h"; | |
363 | av[4] = *title ? title : " "; | |
364 | av[5] = 0; | |
365 | fo = ofd; | |
366 | goto start; | |
367 | } | |
368 | pipe(p); | |
369 | if ((prchild = dofork(DORETURN)) == 0) { /* child */ | |
370 | dup2(fi, 0); /* file is stdin */ | |
371 | dup2(p[1], 1); /* pipe is stdout */ | |
372 | for (n = 3; n < NOFILE; n++) | |
373 | (void) close(n); | |
374 | execl(PR, "pr", width, length, "-h", *title ? title : " ", 0); | |
375 | log("cannot execl %s", PR); | |
376 | exit(2); | |
377 | } | |
378 | (void) close(p[1]); /* close output side */ | |
379 | (void) close(fi); | |
380 | if (prchild < 0) { | |
381 | prchild = 0; | |
382 | (void) close(p[0]); | |
383 | return(-1); | |
384 | } | |
385 | fi = p[0]; /* use pipe for input */ | |
386 | case 'f': /* print plain text file */ | |
387 | prog = IF; | |
388 | av[1] = width; | |
389 | av[2] = length; | |
6bd17dac RC |
390 | av[3] = indent; |
391 | n = 4; | |
df7d5679 RC |
392 | break; |
393 | case 'l': /* like 'f' but pass control characters */ | |
394 | prog = IF; | |
395 | av[1] = "-l"; | |
396 | av[2] = width; | |
397 | av[3] = length; | |
6bd17dac RC |
398 | av[4] = indent; |
399 | n = 5; | |
df7d5679 | 400 | break; |
88f026f7 RC |
401 | case 'r': /* print a fortran text file */ |
402 | prog = RF; | |
403 | av[1] = width; | |
404 | av[2] = length; | |
405 | n = 3; | |
406 | break; | |
df7d5679 | 407 | case 't': /* print troff output */ |
88f026f7 | 408 | case 'd': /* print tex output */ |
df7d5679 | 409 | (void) unlink(".railmag"); |
88f026f7 | 410 | if ((fo = creat(".railmag", FILMOD)) < 0) { |
df7d5679 RC |
411 | log("cannot create .railmag"); |
412 | (void) unlink(".railmag"); | |
413 | } else { | |
414 | for (n = 0; n < 4; n++) { | |
415 | if (fonts[n][0] != '/') | |
416 | (void) write(fo, "/usr/lib/vfont/", 15); | |
417 | (void) write(fo, fonts[n], strlen(fonts[n])); | |
418 | (void) write(fo, "\n", 1); | |
419 | } | |
420 | (void) close(fo); | |
421 | } | |
422 | prog = (format == 't') ? TF : DF; | |
88f026f7 RC |
423 | av[1] = pxwidth; |
424 | av[2] = pxlength; | |
425 | n = 3; | |
df7d5679 RC |
426 | break; |
427 | case 'c': /* print cifplot output */ | |
428 | prog = CF; | |
88f026f7 RC |
429 | av[1] = pxwidth; |
430 | av[2] = pxlength; | |
431 | n = 3; | |
df7d5679 RC |
432 | break; |
433 | case 'g': /* print plot(1G) output */ | |
434 | prog = GF; | |
88f026f7 RC |
435 | av[1] = pxwidth; |
436 | av[2] = pxlength; | |
437 | n = 3; | |
df7d5679 RC |
438 | break; |
439 | case 'v': /* print raster output */ | |
440 | prog = VF; | |
88f026f7 RC |
441 | av[1] = pxwidth; |
442 | av[2] = pxlength; | |
443 | n = 3; | |
df7d5679 RC |
444 | break; |
445 | default: | |
446 | (void) close(fi); | |
447 | log("illegal format character '%c'", format); | |
448 | return(-1); | |
449 | } | |
450 | if ((av[0] = rindex(prog, '/')) != NULL) | |
451 | av[0]++; | |
452 | else | |
453 | av[0] = prog; | |
454 | av[n++] = "-n"; | |
455 | av[n++] = logname; | |
456 | av[n++] = "-h"; | |
457 | av[n++] = host; | |
458 | av[n++] = AF; | |
459 | av[n] = 0; | |
460 | fo = pfd; | |
461 | if (ofilter > 0) { /* stop output filter */ | |
462 | write(ofd, "\031\1", 2); | |
463 | while ((pid = wait3(&status, WUNTRACED, 0)) > 0 && pid != ofilter) | |
464 | ; | |
465 | if (status.w_stopval != WSTOPPED) { | |
466 | (void) close(fi); | |
467 | log("output filter died (%d)", status.w_retcode); | |
468 | return(1); | |
469 | } | |
470 | stopped++; | |
471 | } | |
472 | start: | |
473 | if ((child = dofork(DORETURN)) == 0) { /* child */ | |
474 | dup2(fi, 0); | |
475 | dup2(fo, 1); | |
476 | for (n = 3; n < NOFILE; n++) | |
477 | (void) close(n); | |
478 | execv(prog, av); | |
479 | log("cannot execl %s", prog); | |
480 | exit(2); | |
481 | } | |
482 | (void) close(fi); | |
483 | if (child < 0) | |
484 | status.w_retcode = 100; | |
485 | else | |
486 | while ((pid = wait(&status)) > 0 && pid != child) | |
487 | ; | |
488 | child = 0; | |
489 | prchild = 0; | |
490 | if (stopped) { /* restart output filter */ | |
491 | if (kill(ofilter, SIGCONT) < 0) { | |
492 | log("cannot restart output filter"); | |
493 | exit(1); | |
494 | } | |
495 | } | |
496 | tof = 0; | |
497 | if (!WIFEXITED(status) || status.w_retcode > 1) { | |
498 | log("Daemon Filter '%c' Malfunction (%d)", format, status.w_retcode); | |
499 | return(-1); | |
500 | } else if (status.w_retcode == 1) | |
501 | return(1); | |
502 | tof = 1; | |
503 | return(0); | |
504 | } | |
505 | ||
506 | /* | |
507 | * Send the daemon control file (cf) and any data files. | |
508 | * Return -1 if a non-recoverable error occured, 1 if a recoverable error and | |
509 | * 0 if all is well. | |
510 | */ | |
54266d1f | 511 | static |
df7d5679 RC |
512 | sendit(file) |
513 | char *file; | |
514 | { | |
515 | register int linelen, err = 0; | |
516 | char last[132]; | |
517 | ||
518 | /* | |
519 | * open control file | |
520 | */ | |
521 | if ((cfp = fopen(file, "r")) == NULL) { | |
522 | log("control file (%s) open failure <errno = %d>", file, errno); | |
523 | return(0); | |
524 | } | |
525 | /* | |
526 | * read the control file for work to do | |
527 | * | |
528 | * file format -- first character in the line is a command | |
529 | * rest of the line is the argument. | |
530 | * commands of interest are: | |
531 | * | |
532 | * a-z -- "file name" name of file to print | |
533 | * U -- "unlink" name of file to remove | |
534 | * (after we print it. (Pass 2 only)). | |
535 | */ | |
536 | ||
537 | /* | |
538 | * pass 1 | |
539 | */ | |
540 | while (getline(cfp)) { | |
541 | again: | |
542 | if (line[0] >= 'a' && line[0] <= 'z') { | |
543 | strcpy(last, line); | |
544 | while (linelen = getline(cfp)) | |
545 | if (strcmp(last, line)) | |
546 | break; | |
547 | if ((err = sendfile('\3', last+1)) > 0) { | |
548 | (void) fclose(cfp); | |
549 | return(1); | |
550 | } else if (err) | |
551 | break; | |
552 | if (linelen) | |
553 | goto again; | |
554 | break; | |
555 | } | |
556 | } | |
557 | if (!err && sendfile('\2', file) > 0) { | |
558 | (void) fclose(cfp); | |
559 | return(1); | |
560 | } | |
561 | /* | |
562 | * pass 2 | |
563 | */ | |
564 | fseek(cfp, 0L, 0); | |
565 | while (getline(cfp)) | |
566 | if (line[0] == 'U') | |
567 | (void) unlink(line+1); | |
568 | /* | |
569 | * clean-up incase another control file exists | |
570 | */ | |
571 | (void) fclose(cfp); | |
572 | (void) unlink(file); | |
573 | return(0); | |
574 | } | |
575 | ||
576 | /* | |
577 | * Send a data file to the remote machine and spool it. | |
578 | * Return positive if we should try resending. | |
579 | */ | |
54266d1f | 580 | static |
df7d5679 RC |
581 | sendfile(type, file) |
582 | char type, *file; | |
583 | { | |
584 | register int f, i, amt; | |
585 | struct stat stb; | |
586 | char buf[BUFSIZ]; | |
587 | int sizerr; | |
588 | ||
589 | if ((f = open(file, FRDONLY, 0)) < 0 || fstat(f, &stb) < 0) { | |
590 | log("file (%s) open failure <errno = %d>", file, errno); | |
591 | return(-1); | |
592 | } | |
593 | (void) sprintf(buf, "%c%d %s\n", type, stb.st_size, file); | |
594 | amt = strlen(buf); | |
48ca7288 RC |
595 | if (write(pfd, buf, amt) != amt) { |
596 | (void) close(f); | |
df7d5679 | 597 | return(1); |
48ca7288 RC |
598 | } |
599 | if (noresponse()) { | |
600 | (void) close(f); | |
df7d5679 | 601 | return(1); |
48ca7288 | 602 | } |
df7d5679 RC |
603 | sizerr = 0; |
604 | for (i = 0; i < stb.st_size; i += BUFSIZ) { | |
605 | amt = BUFSIZ; | |
606 | if (i + amt > stb.st_size) | |
607 | amt = stb.st_size - i; | |
608 | if (sizerr == 0 && read(f, buf, amt) != amt) | |
609 | sizerr = 1; | |
48ca7288 RC |
610 | if (write(pfd, buf, amt) != amt) { |
611 | (void) close(f); | |
df7d5679 | 612 | return(1); |
48ca7288 | 613 | } |
df7d5679 RC |
614 | } |
615 | (void) close(f); | |
616 | if (sizerr) { | |
617 | log("%s: changed size", file); | |
618 | (void) write(pfd, "\1", 1); /* tell recvjob to ignore this file */ | |
619 | return(-1); | |
620 | } | |
621 | if (write(pfd, "", 1) != 1) | |
622 | return(1); | |
623 | if (noresponse()) | |
624 | return(1); | |
625 | return(0); | |
626 | } | |
627 | ||
628 | /* | |
629 | * Check to make sure there have been no errors and that both programs | |
630 | * are in sync with eachother. | |
631 | * Return non-zero if the connection was lost. | |
632 | */ | |
633 | static | |
634 | noresponse() | |
635 | { | |
636 | char resp; | |
637 | ||
638 | if (read(pfd, &resp, 1) != 1 || resp != '\0') { | |
639 | log("lost connection or error in recvjob"); | |
640 | return(1); | |
641 | } | |
642 | return(0); | |
643 | } | |
644 | ||
645 | /* | |
646 | * Banner printing stuff | |
647 | */ | |
54266d1f | 648 | static |
df7d5679 RC |
649 | banner(name1, name2) |
650 | char *name1, *name2; | |
651 | { | |
652 | time_t tvec; | |
653 | extern char *ctime(); | |
654 | ||
655 | time(&tvec); | |
656 | if (!SF && !tof) | |
657 | (void) write(ofd, FF, strlen(FF)); | |
658 | if (SB) { /* short banner only */ | |
659 | if (class[0]) { | |
660 | (void) write(ofd, class, strlen(class)); | |
661 | (void) write(ofd, ":", 1); | |
662 | } | |
663 | (void) write(ofd, name1, strlen(name1)); | |
664 | (void) write(ofd, " Job: ", 7); | |
665 | (void) write(ofd, name2, strlen(name2)); | |
666 | (void) write(ofd, " Date: ", 8); | |
667 | (void) write(ofd, ctime(&tvec), 24); | |
668 | (void) write(ofd, "\n", 1); | |
669 | } else { /* normal banner */ | |
670 | (void) write(ofd, "\n\n\n", 3); | |
671 | scan_out(ofd, name1, '\0'); | |
672 | (void) write(ofd, "\n\n", 2); | |
673 | scan_out(ofd, name2, '\0'); | |
674 | if (class[0]) { | |
675 | (void) write(ofd,"\n\n\n",3); | |
676 | scan_out(ofd, class, '\0'); | |
677 | } | |
678 | (void) write(ofd, "\n\n\n\n\t\t\t\t\tJob: ", 15); | |
679 | (void) write(ofd, name2, strlen(name2)); | |
680 | (void) write(ofd, "\n\t\t\t\t\tDate: ", 12); | |
681 | (void) write(ofd, ctime(&tvec), 24); | |
682 | (void) write(ofd, "\n", 1); | |
683 | } | |
684 | if (!SF) | |
685 | (void) write(ofd, FF, strlen(FF)); | |
686 | tof = 1; | |
687 | } | |
688 | ||
54266d1f | 689 | static char * |
df7d5679 RC |
690 | scnline(key, p, c) |
691 | register char key, *p; | |
692 | char c; | |
693 | { | |
694 | register scnwidth; | |
695 | ||
696 | for (scnwidth = WIDTH; --scnwidth;) { | |
697 | key <<= 1; | |
698 | *p++ = key & 0200 ? c : BACKGND; | |
699 | } | |
700 | return (p); | |
701 | } | |
702 | ||
703 | #define TRC(q) (((q)-' ')&0177) | |
704 | ||
54266d1f | 705 | static |
df7d5679 RC |
706 | scan_out(scfd, scsp, dlm) |
707 | int scfd; | |
708 | char *scsp, dlm; | |
709 | { | |
710 | register char *strp; | |
711 | register nchrs, j; | |
712 | char outbuf[LINELEN+1], *sp, c, cc; | |
713 | int d, scnhgt; | |
714 | extern char scnkey[][HEIGHT]; /* in lpdchar.c */ | |
715 | ||
716 | for (scnhgt = 0; scnhgt++ < HEIGHT+DROP; ) { | |
717 | strp = &outbuf[0]; | |
718 | sp = scsp; | |
719 | for (nchrs = 0; ; ) { | |
720 | d = dropit(c = TRC(cc = *sp++)); | |
721 | if ((!d && scnhgt > HEIGHT) || (scnhgt <= DROP && d)) | |
722 | for (j = WIDTH; --j;) | |
723 | *strp++ = BACKGND; | |
724 | else | |
725 | strp = scnline(scnkey[c][scnhgt-1-d], strp, cc); | |
726 | if (*sp == dlm || *sp == '\0' || nchrs++ >= PW/(WIDTH+1)-1) | |
727 | break; | |
728 | *strp++ = BACKGND; | |
729 | *strp++ = BACKGND; | |
730 | } | |
731 | while (*--strp == BACKGND && strp >= outbuf) | |
732 | ; | |
733 | strp++; | |
734 | *strp++ = '\n'; | |
735 | (void) write(scfd, outbuf, strp-outbuf); | |
736 | } | |
737 | } | |
738 | ||
54266d1f | 739 | static |
df7d5679 RC |
740 | dropit(c) |
741 | char c; | |
742 | { | |
743 | switch(c) { | |
744 | ||
745 | case TRC('_'): | |
746 | case TRC(';'): | |
747 | case TRC(','): | |
748 | case TRC('g'): | |
749 | case TRC('j'): | |
750 | case TRC('p'): | |
751 | case TRC('q'): | |
752 | case TRC('y'): | |
753 | return (DROP); | |
754 | ||
755 | default: | |
756 | return (0); | |
757 | } | |
758 | } | |
759 | ||
760 | /* | |
761 | * sendmail --- | |
762 | * tell people about job completion | |
763 | */ | |
54266d1f | 764 | static |
df7d5679 RC |
765 | sendmail(bombed) |
766 | int bombed; | |
767 | { | |
768 | static int p[2]; | |
769 | register int i; | |
770 | int stat; | |
771 | register char *cp; | |
772 | char buf[100]; | |
773 | ||
774 | pipe(p); | |
775 | if ((stat = dofork(DORETURN)) == 0) { /* child */ | |
776 | dup2(p[0], 0); | |
777 | for (i = 3; i < NOFILE; i++) | |
778 | (void) close(i); | |
779 | if ((cp = rindex(MAIL, '/')) != NULL) | |
780 | cp++; | |
781 | else | |
782 | cp = MAIL; | |
783 | sprintf(buf, "%s@%s", line+1, host); | |
784 | execl(MAIL, cp, buf, 0); | |
785 | exit(0); | |
786 | } else if (stat > 0) { /* parent */ | |
787 | dup2(p[1], 1); | |
788 | printf("To: %s\n", line+1); | |
789 | printf("Subject: printer job\n\n"); | |
790 | printf("Your printer job "); | |
791 | if (*jobname) | |
792 | printf("(%s) ", jobname); | |
88f026f7 RC |
793 | switch (bombed) { |
794 | case 0: | |
795 | printf("\ncompleted successfully\n"); | |
796 | break; | |
797 | default: | |
798 | case 1: | |
799 | printf("\ncould not be printed\n"); | |
800 | break; | |
801 | case 2: | |
802 | printf("\ncould not be printed without an account on %s\n", host); | |
803 | break; | |
804 | } | |
df7d5679 RC |
805 | fflush(stdout); |
806 | (void) close(1); | |
807 | } | |
808 | (void) close(p[0]); | |
809 | (void) close(p[1]); | |
810 | wait(&stat); | |
811 | } | |
812 | ||
813 | /* | |
814 | * dofork - fork with retries on failure | |
815 | */ | |
54266d1f | 816 | static |
df7d5679 RC |
817 | dofork(action) |
818 | int action; | |
819 | { | |
820 | register int i, pid; | |
821 | ||
822 | for (i = 0; i < 20; i++) { | |
88f026f7 | 823 | if ((pid = fork()) < 0) { |
df7d5679 | 824 | sleep((unsigned)(i*i)); |
88f026f7 RC |
825 | continue; |
826 | } | |
827 | /* | |
828 | * Child should run as daemon instead of root | |
829 | */ | |
830 | if (pid == 0) | |
831 | setuid(DU); | |
832 | return(pid); | |
df7d5679 RC |
833 | } |
834 | log("can't fork"); | |
835 | ||
836 | switch (action) { | |
837 | case DORETURN: | |
838 | return (-1); | |
839 | default: | |
840 | log("bad action (%d) to dofork", action); | |
841 | /*FALL THRU*/ | |
842 | case DOABORT: | |
843 | exit(1); | |
844 | } | |
845 | /*NOTREACHED*/ | |
846 | } | |
847 | ||
848 | /* | |
849 | * Cleanup child processes when a SIGINT is caught. | |
850 | */ | |
54266d1f | 851 | static |
df7d5679 RC |
852 | onintr() |
853 | { | |
854 | kill(0, SIGINT); | |
855 | if (ofilter > 0) | |
856 | kill(ofilter, SIGCONT); | |
857 | while (wait(0) > 0) | |
858 | ; | |
859 | exit(0); | |
860 | } | |
861 | ||
54266d1f | 862 | static |
df7d5679 RC |
863 | init() |
864 | { | |
865 | int status; | |
866 | ||
867 | if ((status = pgetent(line, printer)) < 0) { | |
868 | log("can't open printer description file"); | |
869 | exit(1); | |
870 | } else if (status == 0) { | |
871 | log("unknown printer"); | |
872 | exit(1); | |
873 | } | |
874 | if ((LP = pgetstr("lp", &bp)) == NULL) | |
875 | LP = DEFDEVLP; | |
876 | if ((RP = pgetstr("rp", &bp)) == NULL) | |
88f026f7 | 877 | RP = DEFLP; |
df7d5679 RC |
878 | if ((LO = pgetstr("lo", &bp)) == NULL) |
879 | LO = DEFLOCK; | |
880 | if ((ST = pgetstr("st", &bp)) == NULL) | |
881 | ST = DEFSTAT; | |
882 | if ((LF = pgetstr("lf", &bp)) == NULL) | |
883 | LF = DEFLOGF; | |
884 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
885 | SD = DEFSPOOL; | |
886 | if ((DU = pgetnum("du")) < 0) | |
887 | DU = DEFUID; | |
888 | if ((FF = pgetstr("ff", &bp)) == NULL) | |
889 | FF = DEFFF; | |
890 | if ((PW = pgetnum("pw")) < 0) | |
891 | PW = DEFWIDTH; | |
892 | sprintf(&width[2], "%d", PW); | |
893 | if ((PL = pgetnum("pl")) < 0) | |
894 | PL = DEFLENGTH; | |
895 | sprintf(&length[2], "%d", PL); | |
88f026f7 RC |
896 | if ((PX = pgetnum("px")) < 0) |
897 | PX = 0; | |
898 | sprintf(&pxwidth[2], "%d", PX); | |
899 | if ((PY = pgetnum("py")) < 0) | |
900 | PY = 0; | |
901 | sprintf(&pxlength[2], "%d", PY); | |
df7d5679 RC |
902 | RM = pgetstr("rm", &bp); |
903 | AF = pgetstr("af", &bp); | |
904 | OF = pgetstr("of", &bp); | |
905 | IF = pgetstr("if", &bp); | |
88f026f7 | 906 | RF = pgetstr("rf", &bp); |
df7d5679 RC |
907 | TF = pgetstr("tf", &bp); |
908 | DF = pgetstr("df", &bp); | |
909 | GF = pgetstr("gf", &bp); | |
910 | VF = pgetstr("vf", &bp); | |
911 | CF = pgetstr("cf", &bp); | |
912 | TR = pgetstr("tr", &bp); | |
88f026f7 | 913 | RS = pgetflag("rs"); |
df7d5679 RC |
914 | SF = pgetflag("sf"); |
915 | SH = pgetflag("sh"); | |
916 | SB = pgetflag("sb"); | |
917 | RW = pgetflag("rw"); | |
918 | BR = pgetnum("br"); | |
919 | if ((FC = pgetnum("fc")) < 0) | |
920 | FC = 0; | |
921 | if ((FS = pgetnum("fs")) < 0) | |
922 | FS = 0; | |
923 | if ((XC = pgetnum("xc")) < 0) | |
924 | XC = 0; | |
925 | if ((XS = pgetnum("xs")) < 0) | |
926 | XS = 0; | |
6bd17dac | 927 | tof = !pgetflag("fo"); |
df7d5679 RC |
928 | } |
929 | ||
88f026f7 RC |
930 | /* |
931 | * Acquire line printer or remote connection. | |
932 | */ | |
54266d1f | 933 | static |
88f026f7 RC |
934 | openpr() |
935 | { | |
936 | register int i, n; | |
937 | ||
938 | if (*LP) { | |
939 | for (i = 1; ; i = i < 32 ? i << 1 : i) { | |
940 | pfd = open(LP, RW ? FRDWR : FWRONLY, 0); | |
941 | if (pfd >= 0) | |
942 | break; | |
943 | if (errno == ENOENT) { | |
944 | log("cannot open %s", LP); | |
945 | exit(1); | |
946 | } | |
947 | if (i == 1) | |
948 | status("waiting for %s to become ready (offline ?)", printer); | |
949 | sleep(i); | |
950 | } | |
951 | if (isatty(pfd)) | |
952 | setty(); | |
953 | status("%s is ready and printing", printer); | |
954 | } else if (RM != NULL) { | |
955 | for (i = 1; ; i = i < 512 ? i << 1 : i) { | |
a87bde97 | 956 | pfd = getport(RM); |
88f026f7 RC |
957 | if (pfd >= 0) { |
958 | (void) sprintf(line, "\2%s\n", RP); | |
959 | n = strlen(line); | |
960 | if (write(pfd, line, n) != n) | |
961 | break; | |
962 | if (noresponse()) | |
963 | (void) close(pfd); | |
964 | else | |
965 | break; | |
966 | } | |
967 | if (i == 1) | |
968 | status("waiting for %s to come up", RM); | |
969 | sleep(i); | |
970 | } | |
971 | status("sending to %s", RM); | |
972 | remote = 1; | |
973 | } else { | |
974 | log("no line printer device or remote machine name"); | |
975 | exit(1); | |
976 | } | |
977 | /* | |
978 | * Start up an output filter, if needed. | |
979 | */ | |
980 | if (OF) { | |
981 | int p[2]; | |
982 | char *cp; | |
983 | ||
984 | pipe(p); | |
985 | if ((ofilter = dofork(DOABORT)) == 0) { /* child */ | |
986 | dup2(p[0], 0); /* pipe is std in */ | |
987 | dup2(pfd, 1); /* printer is std out */ | |
988 | for (i = 3; i < NOFILE; i++) | |
989 | (void) close(i); | |
990 | if ((cp = rindex(OF, '/')) == NULL) | |
991 | cp = OF; | |
992 | else | |
993 | cp++; | |
994 | execl(OF, cp, width, length, 0); | |
995 | log("can't execl output filter %s", OF); | |
996 | exit(1); | |
997 | } | |
998 | (void) close(p[0]); /* close input side */ | |
999 | ofd = p[1]; /* use pipe for output */ | |
1000 | } else { | |
1001 | ofd = pfd; | |
1002 | ofilter = 0; | |
1003 | } | |
1004 | } | |
1005 | ||
df7d5679 RC |
1006 | struct bauds { |
1007 | int baud; | |
1008 | int speed; | |
1009 | } bauds[] = { | |
1010 | 50, B50, | |
1011 | 75, B75, | |
1012 | 110, B110, | |
1013 | 134, B134, | |
1014 | 150, B150, | |
1015 | 200, B200, | |
1016 | 300, B300, | |
1017 | 600, B600, | |
1018 | 1200, B1200, | |
1019 | 1800, B1800, | |
1020 | 2400, B2400, | |
1021 | 4800, B4800, | |
1022 | 9600, B9600, | |
1023 | 19200, EXTA, | |
1024 | 38400, EXTB, | |
1025 | 0, 0 | |
1026 | }; | |
1027 | ||
1028 | /* | |
1029 | * setup tty lines. | |
1030 | */ | |
54266d1f | 1031 | static |
df7d5679 RC |
1032 | setty() |
1033 | { | |
1034 | struct sgttyb ttybuf; | |
1035 | register struct bauds *bp; | |
1036 | ||
1037 | if (ioctl(pfd, TIOCEXCL, (char *)0) < 0) { | |
1038 | log("cannot set exclusive-use"); | |
1039 | exit(1); | |
1040 | } | |
1041 | if (ioctl(pfd, TIOCGETP, (char *)&ttybuf) < 0) { | |
1042 | log("cannot get tty parameters"); | |
1043 | exit(1); | |
1044 | } | |
1045 | if (BR > 0) { | |
1046 | for (bp = bauds; bp->baud; bp++) | |
1047 | if (BR == bp->baud) | |
1048 | break; | |
1049 | if (!bp->baud) { | |
1050 | log("illegal baud rate %d", BR); | |
1051 | exit(1); | |
1052 | } | |
1053 | ttybuf.sg_ispeed = ttybuf.sg_ospeed = bp->speed; | |
1054 | } | |
1055 | if (FC) | |
1056 | ttybuf.sg_flags &= ~FC; | |
1057 | if (FS) | |
1058 | ttybuf.sg_flags |= FS; | |
1059 | if (ioctl(pfd, TIOCSETP, (char *)&ttybuf) < 0) { | |
1060 | log("cannot set tty parameters"); | |
1061 | exit(1); | |
1062 | } | |
1063 | if (XC) { | |
1064 | if (ioctl(pfd, TIOCLBIC, &XC) < 0) { | |
1065 | log("cannot set local tty parameters"); | |
1066 | exit(1); | |
1067 | } | |
1068 | } | |
1069 | if (XS) { | |
1070 | if (ioctl(pfd, TIOCLBIS, &XS) < 0) { | |
1071 | log("cannot set local tty parameters"); | |
1072 | exit(1); | |
1073 | } | |
1074 | } | |
1075 | } | |
88f026f7 RC |
1076 | |
1077 | /*VARARGS1*/ | |
1078 | static | |
1079 | status(msg, a1, a2, a3) | |
1080 | char *msg; | |
1081 | { | |
1082 | register int fd; | |
1083 | char buf[BUFSIZ]; | |
1084 | ||
1085 | umask(0); | |
1086 | if ((fd = open(ST, FWRONLY|FCREATE|FTRUNCATE|FEXLOCK, 0664)) < 0) | |
1087 | fatal("cannot create status file"); | |
1088 | sprintf(buf, msg, a1, a2, a3); | |
1089 | strcat(buf, "\n"); | |
1090 | (void) write(fd, buf, strlen(buf)); | |
1091 | (void) close(fd); | |
1092 | } |