Commit | Line | Data |
---|---|---|
c6d1c018 | 1 | /* printjob.c 4.8 83/06/17 */ |
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); | |
adec4d9e SL |
47 | if (open(LF, O_WRONLY|O_APPEND) < 0) |
48 | (void) open("/dev/null", O_WRONLY); | |
54266d1f | 49 | dup(1); |
88f026f7 | 50 | pid = getpid(); /* for use with lprm */ |
df7d5679 | 51 | setpgrp(0, pid); |
adec4d9e | 52 | signal(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 */ | |
c6d1c018 RC |
63 | lfd = open(LO, O_WRONLY|O_CREAT|O_TRUNC, 0644); |
64 | if (lfd < 0) { | |
65 | log("cannot create %s", LO); | |
66 | exit(1); | |
67 | } | |
68 | if (flock(lfd, LOCK_EX|LOCK_NB) < 0) { | |
df7d5679 RC |
69 | if (errno == EWOULDBLOCK) /* active deamon present */ |
70 | exit(0); | |
c6d1c018 | 71 | log("cannot lock %s", LO); |
df7d5679 RC |
72 | exit(1); |
73 | } | |
adec4d9e | 74 | ftruncate(lfd, 0); |
df7d5679 RC |
75 | /* |
76 | * write process id for others to know | |
77 | */ | |
78 | sprintf(line, "%u\n", pid); | |
79 | pidoff = i = strlen(line); | |
88f026f7 | 80 | if (write(lfd, line, i) != i) { |
df7d5679 | 81 | log("cannot write daemon pid"); |
df7d5679 RC |
82 | exit(1); |
83 | } | |
df7d5679 RC |
84 | /* |
85 | * search the spool directory for work and sort by queue order. | |
86 | */ | |
df7d5679 RC |
87 | if ((nitems = getq(&queue)) < 0) { |
88 | log("can't scan spool directory %s", SD); | |
89 | exit(1); | |
90 | } | |
88f026f7 | 91 | if (nitems == 0) /* no work to do */ |
df7d5679 | 92 | exit(0); |
c6d1c018 RC |
93 | if (stb.st_mode & 01) { /* reset queue flag */ |
94 | if (fchmod(lfd, stb.st_mode & 0776) < 0) | |
95 | log("cannot chmod %s", LO); | |
96 | } | |
88f026f7 RC |
97 | openpr(); /* open printer or remote */ |
98 | again: | |
df7d5679 RC |
99 | /* |
100 | * we found something to do now do it -- | |
101 | * write the name of the current control file into the lock file | |
102 | * so the spool queue program can tell what we're working on | |
103 | */ | |
104 | for (qp = queue; nitems--; free((char *) q)) { | |
105 | q = *qp++; | |
106 | if (stat(q->q_name, &stb) < 0) | |
107 | continue; | |
88f026f7 | 108 | restart: |
df7d5679 RC |
109 | (void) lseek(lfd, pidoff, 0); |
110 | (void) sprintf(line, "%s\n", q->q_name); | |
111 | i = strlen(line); | |
112 | if (write(lfd, line, i) != i) | |
113 | log("can't write (%d) control file name", errno); | |
114 | if (!remote) | |
115 | i = printit(q->q_name); | |
116 | else | |
117 | i = sendit(q->q_name); | |
88f026f7 | 118 | /* |
c6d1c018 RC |
119 | * Check to see if we are supposed to stop printing or |
120 | * if we are to rebuild the queue. | |
88f026f7 | 121 | */ |
c6d1c018 RC |
122 | if (fstat(lfd, &stb) == 0) { |
123 | if (stb.st_mode & 0100) | |
124 | goto done; | |
125 | if (stb.st_mode & 01) { | |
126 | for (free((char *) q); nitems--; free((char *) q)) | |
127 | q = *qp++; | |
128 | if (fchmod(lfd, stb.st_mode & 0776) < 0) | |
129 | log("cannot chmod %s", LO); | |
130 | break; | |
131 | } | |
132 | } | |
88f026f7 RC |
133 | /* |
134 | * Check to see if we should try reprinting the job. | |
135 | */ | |
136 | if (i > 0) { | |
df7d5679 RC |
137 | log("restarting"); |
138 | if (ofilter > 0) { | |
139 | kill(ofilter, SIGCONT); /* to be sure */ | |
140 | (void) close(ofd); | |
141 | while ((i = wait(0)) > 0 && i != ofilter) | |
142 | ; | |
143 | ofilter = 0; | |
144 | } | |
88f026f7 RC |
145 | (void) close(pfd); /* close printer */ |
146 | (void) lseek(lfd, pidoff, 0); | |
147 | if (write(lfd, "\n", 1) != 1) | |
148 | log("can't write (%d) control file name", errno); | |
149 | openpr(); /* try to reopen printer */ | |
df7d5679 RC |
150 | goto restart; |
151 | } | |
152 | } | |
153 | free((char *) queue); | |
88f026f7 RC |
154 | /* |
155 | * search the spool directory for more work. | |
156 | */ | |
157 | if ((nitems = getq(&queue)) < 0) { | |
158 | log("can't scan spool directory %s", SD); | |
159 | exit(1); | |
160 | } | |
161 | if (nitems == 0) { /* no more work to do */ | |
162 | done: | |
163 | if (!SF && !tof) | |
164 | (void) write(ofd, FF, strlen(FF)); | |
165 | if (TR != NULL) /* output trailer */ | |
166 | (void) write(ofd, TR, strlen(TR)); | |
167 | exit(0); | |
168 | } | |
df7d5679 RC |
169 | goto again; |
170 | } | |
171 | ||
172 | char fonts[4][50]; /* fonts for troff */ | |
173 | ||
174 | static char ifonts[4][18] = { | |
175 | "/usr/lib/vfont/R", | |
176 | "/usr/lib/vfont/I", | |
177 | "/usr/lib/vfont/B", | |
178 | "/usr/lib/vfont/S" | |
179 | }; | |
180 | ||
181 | /* | |
182 | * The remaining part is the reading of the control file (cf) | |
183 | * and performing the various actions. | |
184 | * Returns 0 if everthing was OK, 1 if we should try to reprint the job and | |
185 | * -1 if a non-recoverable error occured. | |
186 | */ | |
54266d1f | 187 | static |
df7d5679 RC |
188 | printit(file) |
189 | char *file; | |
190 | { | |
191 | register int i; | |
192 | int bombed = 0; | |
193 | ||
194 | /* | |
195 | * open control file | |
196 | */ | |
197 | if ((cfp = fopen(file, "r")) == NULL) { | |
198 | log("control file (%s) open failure <errno = %d>", file, errno); | |
199 | return(0); | |
200 | } | |
201 | /* | |
202 | * Reset troff fonts. | |
203 | */ | |
204 | for (i = 0; i < 4; i++) | |
205 | strcpy(fonts[i], ifonts[i]); | |
206 | ||
207 | /* | |
208 | * read the control file for work to do | |
209 | * | |
210 | * file format -- first character in the line is a command | |
211 | * rest of the line is the argument. | |
212 | * valid commands are: | |
213 | * | |
214 | * J -- "job name" on banner page | |
215 | * C -- "class name" on banner page | |
216 | * L -- "literal" user's name to print on banner | |
217 | * T -- "title" for pr | |
218 | * H -- "host name" of machine where lpr was done | |
219 | * P -- "person" user's login name | |
6bd17dac | 220 | * I -- "indent" amount to indent output |
df7d5679 RC |
221 | * f -- "file name" name of text file to print |
222 | * l -- "file name" text file with control chars | |
223 | * p -- "file name" text file to print with pr(1) | |
224 | * t -- "file name" troff(1) file to print | |
225 | * d -- "file name" dvi file to print | |
226 | * g -- "file name" plot(1G) file to print | |
227 | * v -- "file name" plain raster file to print | |
228 | * c -- "file name" cifplot file to print | |
229 | * 1 -- "R font file" for troff | |
230 | * 2 -- "I font file" for troff | |
231 | * 3 -- "B font file" for troff | |
232 | * 4 -- "S font file" for troff | |
233 | * N -- "name" of file (used by lpq) | |
234 | * U -- "unlink" name of file to remove | |
235 | * (after we print it. (Pass 2 only)). | |
236 | * M -- "mail" to user when done printing | |
237 | * | |
238 | * getline reads a line and expands tabs to blanks | |
239 | */ | |
240 | ||
241 | /* pass 1 */ | |
242 | ||
243 | while (getline(cfp)) | |
244 | switch (line[0]) { | |
245 | case 'H': | |
246 | strcpy(host, line+1); | |
247 | if (class[0] == '\0') | |
248 | strcpy(class, line+1); | |
249 | continue; | |
250 | ||
251 | case 'P': | |
252 | strcpy(logname, line+1); | |
88f026f7 RC |
253 | if (RS) { /* restricted */ |
254 | if (getpwnam(logname) == (struct passwd *)0) { | |
255 | bombed = 2; | |
256 | sendmail(bombed); | |
257 | goto pass2; | |
258 | } | |
259 | } | |
df7d5679 RC |
260 | continue; |
261 | ||
262 | case 'J': | |
263 | if (line[1] != '\0') | |
264 | strcpy(jobname, line+1); | |
265 | else | |
266 | strcpy(jobname, " "); | |
267 | continue; | |
268 | ||
269 | case 'C': | |
270 | if (line[1] != '\0') | |
271 | strcpy(class, line+1); | |
272 | else if (class[0] == '\0') | |
273 | gethostname(class, sizeof (class)); | |
274 | continue; | |
275 | ||
276 | case 'T': /* header title for pr */ | |
277 | strcpy(title, line+1); | |
278 | continue; | |
279 | ||
280 | case 'L': /* identification line */ | |
281 | if (!SH) | |
282 | banner(line+1, jobname); | |
283 | continue; | |
284 | ||
285 | case '1': /* troff fonts */ | |
286 | case '2': | |
287 | case '3': | |
288 | case '4': | |
289 | if (line[1] != '\0') | |
290 | strcpy(fonts[line[0]-'1'], line+1); | |
291 | continue; | |
292 | ||
293 | case 'W': /* page width */ | |
294 | strcpy(width+2, line+1); | |
295 | continue; | |
296 | ||
6bd17dac RC |
297 | case 'I': /* indent amount */ |
298 | strcpy(indent+2, line+1); | |
299 | continue; | |
300 | ||
df7d5679 RC |
301 | default: /* some file to print */ |
302 | if ((i = print(line[0], line+1)) > 0) { | |
303 | (void) fclose(cfp); | |
304 | return(1); | |
305 | } else if (i < 0) | |
306 | bombed = 1; | |
307 | title[0] = '\0'; | |
308 | continue; | |
309 | ||
df7d5679 RC |
310 | case 'N': |
311 | case 'U': | |
312 | case 'M': | |
313 | continue; | |
314 | } | |
315 | ||
316 | /* pass 2 */ | |
317 | ||
88f026f7 | 318 | pass2: |
df7d5679 RC |
319 | fseek(cfp, 0L, 0); |
320 | while (getline(cfp)) | |
321 | switch (line[0]) { | |
322 | case 'M': | |
88f026f7 RC |
323 | if (bombed != 2) /* already sent if 2 */ |
324 | sendmail(bombed); | |
df7d5679 RC |
325 | continue; |
326 | ||
327 | case 'U': | |
328 | (void) unlink(line+1); | |
329 | } | |
330 | /* | |
331 | * clean-up incase another control file exists | |
332 | */ | |
333 | (void) fclose(cfp); | |
334 | (void) unlink(file); | |
335 | return(0); | |
336 | } | |
337 | ||
338 | /* | |
339 | * Print a file. | |
340 | * Set up the chain [ PR [ | {IF, OF} ] ] or {IF, TF, CF, VF}. | |
341 | * Return -1 if a non-recoverable error occured, 1 if a recoverable error and | |
342 | * 0 if all is well. | |
343 | * Note: all filters take stdin as the file, stdout as the printer, | |
344 | * stderr as the log file, and must not ignore SIGINT. | |
345 | */ | |
54266d1f | 346 | static |
df7d5679 RC |
347 | print(format, file) |
348 | int format; | |
349 | char *file; | |
350 | { | |
351 | register int n, fi, fo; | |
352 | register char *prog; | |
353 | char *av[15], buf[BUFSIZ]; | |
354 | int pid, p[2], stopped = 0; | |
355 | union wait status; | |
356 | ||
adec4d9e | 357 | if ((fi = open(file, O_RDONLY)) < 0) { |
df7d5679 RC |
358 | log("%s: open failure <errno = %d>", file, errno); |
359 | return(-1); | |
360 | } | |
361 | if (!SF && !tof) { /* start on a fresh page */ | |
362 | (void) write(ofd, FF, strlen(FF)); | |
363 | tof = 1; | |
364 | } | |
365 | if (IF == NULL && (format == 'f' || format == 'l')) { | |
366 | tof = 0; | |
367 | while ((n = read(fi, buf, BUFSIZ)) > 0) | |
368 | if (write(ofd, buf, n) != n) { | |
369 | (void) close(fi); | |
370 | return(1); | |
371 | } | |
372 | (void) close(fi); | |
373 | return(0); | |
374 | } | |
375 | switch (format) { | |
376 | case 'p': /* print file using 'pr' */ | |
377 | if (IF == NULL) { /* use output filter */ | |
378 | prog = PR; | |
379 | av[0] = "pr"; | |
380 | av[1] = width; | |
381 | av[2] = length; | |
382 | av[3] = "-h"; | |
383 | av[4] = *title ? title : " "; | |
384 | av[5] = 0; | |
385 | fo = ofd; | |
386 | goto start; | |
387 | } | |
388 | pipe(p); | |
389 | if ((prchild = dofork(DORETURN)) == 0) { /* child */ | |
390 | dup2(fi, 0); /* file is stdin */ | |
391 | dup2(p[1], 1); /* pipe is stdout */ | |
392 | for (n = 3; n < NOFILE; n++) | |
393 | (void) close(n); | |
394 | execl(PR, "pr", width, length, "-h", *title ? title : " ", 0); | |
395 | log("cannot execl %s", PR); | |
396 | exit(2); | |
397 | } | |
398 | (void) close(p[1]); /* close output side */ | |
399 | (void) close(fi); | |
400 | if (prchild < 0) { | |
401 | prchild = 0; | |
402 | (void) close(p[0]); | |
403 | return(-1); | |
404 | } | |
405 | fi = p[0]; /* use pipe for input */ | |
406 | case 'f': /* print plain text file */ | |
407 | prog = IF; | |
408 | av[1] = width; | |
409 | av[2] = length; | |
6bd17dac RC |
410 | av[3] = indent; |
411 | n = 4; | |
df7d5679 RC |
412 | break; |
413 | case 'l': /* like 'f' but pass control characters */ | |
414 | prog = IF; | |
415 | av[1] = "-l"; | |
416 | av[2] = width; | |
417 | av[3] = length; | |
6bd17dac RC |
418 | av[4] = indent; |
419 | n = 5; | |
df7d5679 | 420 | break; |
88f026f7 RC |
421 | case 'r': /* print a fortran text file */ |
422 | prog = RF; | |
423 | av[1] = width; | |
424 | av[2] = length; | |
425 | n = 3; | |
426 | break; | |
df7d5679 | 427 | case 't': /* print troff output */ |
88f026f7 | 428 | case 'd': /* print tex output */ |
df7d5679 | 429 | (void) unlink(".railmag"); |
88f026f7 | 430 | if ((fo = creat(".railmag", FILMOD)) < 0) { |
df7d5679 RC |
431 | log("cannot create .railmag"); |
432 | (void) unlink(".railmag"); | |
433 | } else { | |
434 | for (n = 0; n < 4; n++) { | |
435 | if (fonts[n][0] != '/') | |
436 | (void) write(fo, "/usr/lib/vfont/", 15); | |
437 | (void) write(fo, fonts[n], strlen(fonts[n])); | |
438 | (void) write(fo, "\n", 1); | |
439 | } | |
440 | (void) close(fo); | |
441 | } | |
442 | prog = (format == 't') ? TF : DF; | |
88f026f7 RC |
443 | av[1] = pxwidth; |
444 | av[2] = pxlength; | |
445 | n = 3; | |
df7d5679 RC |
446 | break; |
447 | case 'c': /* print cifplot output */ | |
448 | prog = CF; | |
88f026f7 RC |
449 | av[1] = pxwidth; |
450 | av[2] = pxlength; | |
451 | n = 3; | |
df7d5679 RC |
452 | break; |
453 | case 'g': /* print plot(1G) output */ | |
454 | prog = GF; | |
88f026f7 RC |
455 | av[1] = pxwidth; |
456 | av[2] = pxlength; | |
457 | n = 3; | |
df7d5679 RC |
458 | break; |
459 | case 'v': /* print raster output */ | |
460 | prog = VF; | |
88f026f7 RC |
461 | av[1] = pxwidth; |
462 | av[2] = pxlength; | |
463 | n = 3; | |
df7d5679 RC |
464 | break; |
465 | default: | |
466 | (void) close(fi); | |
467 | log("illegal format character '%c'", format); | |
468 | return(-1); | |
469 | } | |
470 | if ((av[0] = rindex(prog, '/')) != NULL) | |
471 | av[0]++; | |
472 | else | |
473 | av[0] = prog; | |
474 | av[n++] = "-n"; | |
475 | av[n++] = logname; | |
476 | av[n++] = "-h"; | |
477 | av[n++] = host; | |
478 | av[n++] = AF; | |
479 | av[n] = 0; | |
480 | fo = pfd; | |
481 | if (ofilter > 0) { /* stop output filter */ | |
482 | write(ofd, "\031\1", 2); | |
483 | while ((pid = wait3(&status, WUNTRACED, 0)) > 0 && pid != ofilter) | |
484 | ; | |
485 | if (status.w_stopval != WSTOPPED) { | |
486 | (void) close(fi); | |
487 | log("output filter died (%d)", status.w_retcode); | |
488 | return(1); | |
489 | } | |
490 | stopped++; | |
491 | } | |
492 | start: | |
493 | if ((child = dofork(DORETURN)) == 0) { /* child */ | |
494 | dup2(fi, 0); | |
495 | dup2(fo, 1); | |
496 | for (n = 3; n < NOFILE; n++) | |
497 | (void) close(n); | |
498 | execv(prog, av); | |
499 | log("cannot execl %s", prog); | |
500 | exit(2); | |
501 | } | |
502 | (void) close(fi); | |
503 | if (child < 0) | |
504 | status.w_retcode = 100; | |
505 | else | |
506 | while ((pid = wait(&status)) > 0 && pid != child) | |
507 | ; | |
508 | child = 0; | |
509 | prchild = 0; | |
510 | if (stopped) { /* restart output filter */ | |
511 | if (kill(ofilter, SIGCONT) < 0) { | |
512 | log("cannot restart output filter"); | |
513 | exit(1); | |
514 | } | |
515 | } | |
516 | tof = 0; | |
517 | if (!WIFEXITED(status) || status.w_retcode > 1) { | |
518 | log("Daemon Filter '%c' Malfunction (%d)", format, status.w_retcode); | |
519 | return(-1); | |
520 | } else if (status.w_retcode == 1) | |
521 | return(1); | |
522 | tof = 1; | |
523 | return(0); | |
524 | } | |
525 | ||
526 | /* | |
527 | * Send the daemon control file (cf) and any data files. | |
528 | * Return -1 if a non-recoverable error occured, 1 if a recoverable error and | |
529 | * 0 if all is well. | |
530 | */ | |
54266d1f | 531 | static |
df7d5679 RC |
532 | sendit(file) |
533 | char *file; | |
534 | { | |
535 | register int linelen, err = 0; | |
536 | char last[132]; | |
537 | ||
538 | /* | |
539 | * open control file | |
540 | */ | |
541 | if ((cfp = fopen(file, "r")) == NULL) { | |
542 | log("control file (%s) open failure <errno = %d>", file, errno); | |
543 | return(0); | |
544 | } | |
545 | /* | |
546 | * read the control file for work to do | |
547 | * | |
548 | * file format -- first character in the line is a command | |
549 | * rest of the line is the argument. | |
550 | * commands of interest are: | |
551 | * | |
552 | * a-z -- "file name" name of file to print | |
553 | * U -- "unlink" name of file to remove | |
554 | * (after we print it. (Pass 2 only)). | |
555 | */ | |
556 | ||
557 | /* | |
558 | * pass 1 | |
559 | */ | |
560 | while (getline(cfp)) { | |
561 | again: | |
562 | if (line[0] >= 'a' && line[0] <= 'z') { | |
563 | strcpy(last, line); | |
564 | while (linelen = getline(cfp)) | |
565 | if (strcmp(last, line)) | |
566 | break; | |
567 | if ((err = sendfile('\3', last+1)) > 0) { | |
568 | (void) fclose(cfp); | |
569 | return(1); | |
570 | } else if (err) | |
571 | break; | |
572 | if (linelen) | |
573 | goto again; | |
574 | break; | |
575 | } | |
576 | } | |
577 | if (!err && sendfile('\2', file) > 0) { | |
578 | (void) fclose(cfp); | |
579 | return(1); | |
580 | } | |
581 | /* | |
582 | * pass 2 | |
583 | */ | |
584 | fseek(cfp, 0L, 0); | |
585 | while (getline(cfp)) | |
586 | if (line[0] == 'U') | |
587 | (void) unlink(line+1); | |
588 | /* | |
589 | * clean-up incase another control file exists | |
590 | */ | |
591 | (void) fclose(cfp); | |
592 | (void) unlink(file); | |
593 | return(0); | |
594 | } | |
595 | ||
596 | /* | |
597 | * Send a data file to the remote machine and spool it. | |
598 | * Return positive if we should try resending. | |
599 | */ | |
54266d1f | 600 | static |
df7d5679 RC |
601 | sendfile(type, file) |
602 | char type, *file; | |
603 | { | |
604 | register int f, i, amt; | |
605 | struct stat stb; | |
606 | char buf[BUFSIZ]; | |
607 | int sizerr; | |
608 | ||
adec4d9e | 609 | if ((f = open(file, O_RDONLY)) < 0 || fstat(f, &stb) < 0) { |
df7d5679 RC |
610 | log("file (%s) open failure <errno = %d>", file, errno); |
611 | return(-1); | |
612 | } | |
613 | (void) sprintf(buf, "%c%d %s\n", type, stb.st_size, file); | |
614 | amt = strlen(buf); | |
48ca7288 RC |
615 | if (write(pfd, buf, amt) != amt) { |
616 | (void) close(f); | |
df7d5679 | 617 | return(1); |
48ca7288 RC |
618 | } |
619 | if (noresponse()) { | |
620 | (void) close(f); | |
df7d5679 | 621 | return(1); |
48ca7288 | 622 | } |
df7d5679 RC |
623 | sizerr = 0; |
624 | for (i = 0; i < stb.st_size; i += BUFSIZ) { | |
625 | amt = BUFSIZ; | |
626 | if (i + amt > stb.st_size) | |
627 | amt = stb.st_size - i; | |
628 | if (sizerr == 0 && read(f, buf, amt) != amt) | |
629 | sizerr = 1; | |
48ca7288 RC |
630 | if (write(pfd, buf, amt) != amt) { |
631 | (void) close(f); | |
df7d5679 | 632 | return(1); |
48ca7288 | 633 | } |
df7d5679 RC |
634 | } |
635 | (void) close(f); | |
636 | if (sizerr) { | |
637 | log("%s: changed size", file); | |
638 | (void) write(pfd, "\1", 1); /* tell recvjob to ignore this file */ | |
639 | return(-1); | |
640 | } | |
641 | if (write(pfd, "", 1) != 1) | |
642 | return(1); | |
643 | if (noresponse()) | |
644 | return(1); | |
645 | return(0); | |
646 | } | |
647 | ||
648 | /* | |
649 | * Check to make sure there have been no errors and that both programs | |
650 | * are in sync with eachother. | |
651 | * Return non-zero if the connection was lost. | |
652 | */ | |
653 | static | |
654 | noresponse() | |
655 | { | |
656 | char resp; | |
657 | ||
658 | if (read(pfd, &resp, 1) != 1 || resp != '\0') { | |
659 | log("lost connection or error in recvjob"); | |
660 | return(1); | |
661 | } | |
662 | return(0); | |
663 | } | |
664 | ||
665 | /* | |
666 | * Banner printing stuff | |
667 | */ | |
54266d1f | 668 | static |
df7d5679 RC |
669 | banner(name1, name2) |
670 | char *name1, *name2; | |
671 | { | |
672 | time_t tvec; | |
673 | extern char *ctime(); | |
674 | ||
675 | time(&tvec); | |
676 | if (!SF && !tof) | |
677 | (void) write(ofd, FF, strlen(FF)); | |
678 | if (SB) { /* short banner only */ | |
679 | if (class[0]) { | |
680 | (void) write(ofd, class, strlen(class)); | |
681 | (void) write(ofd, ":", 1); | |
682 | } | |
683 | (void) write(ofd, name1, strlen(name1)); | |
684 | (void) write(ofd, " Job: ", 7); | |
685 | (void) write(ofd, name2, strlen(name2)); | |
686 | (void) write(ofd, " Date: ", 8); | |
687 | (void) write(ofd, ctime(&tvec), 24); | |
688 | (void) write(ofd, "\n", 1); | |
689 | } else { /* normal banner */ | |
690 | (void) write(ofd, "\n\n\n", 3); | |
691 | scan_out(ofd, name1, '\0'); | |
692 | (void) write(ofd, "\n\n", 2); | |
693 | scan_out(ofd, name2, '\0'); | |
694 | if (class[0]) { | |
695 | (void) write(ofd,"\n\n\n",3); | |
696 | scan_out(ofd, class, '\0'); | |
697 | } | |
698 | (void) write(ofd, "\n\n\n\n\t\t\t\t\tJob: ", 15); | |
699 | (void) write(ofd, name2, strlen(name2)); | |
700 | (void) write(ofd, "\n\t\t\t\t\tDate: ", 12); | |
701 | (void) write(ofd, ctime(&tvec), 24); | |
702 | (void) write(ofd, "\n", 1); | |
703 | } | |
704 | if (!SF) | |
705 | (void) write(ofd, FF, strlen(FF)); | |
706 | tof = 1; | |
707 | } | |
708 | ||
54266d1f | 709 | static char * |
df7d5679 RC |
710 | scnline(key, p, c) |
711 | register char key, *p; | |
712 | char c; | |
713 | { | |
714 | register scnwidth; | |
715 | ||
716 | for (scnwidth = WIDTH; --scnwidth;) { | |
717 | key <<= 1; | |
718 | *p++ = key & 0200 ? c : BACKGND; | |
719 | } | |
720 | return (p); | |
721 | } | |
722 | ||
723 | #define TRC(q) (((q)-' ')&0177) | |
724 | ||
54266d1f | 725 | static |
df7d5679 RC |
726 | scan_out(scfd, scsp, dlm) |
727 | int scfd; | |
728 | char *scsp, dlm; | |
729 | { | |
730 | register char *strp; | |
731 | register nchrs, j; | |
732 | char outbuf[LINELEN+1], *sp, c, cc; | |
733 | int d, scnhgt; | |
734 | extern char scnkey[][HEIGHT]; /* in lpdchar.c */ | |
735 | ||
736 | for (scnhgt = 0; scnhgt++ < HEIGHT+DROP; ) { | |
737 | strp = &outbuf[0]; | |
738 | sp = scsp; | |
739 | for (nchrs = 0; ; ) { | |
740 | d = dropit(c = TRC(cc = *sp++)); | |
741 | if ((!d && scnhgt > HEIGHT) || (scnhgt <= DROP && d)) | |
742 | for (j = WIDTH; --j;) | |
743 | *strp++ = BACKGND; | |
744 | else | |
745 | strp = scnline(scnkey[c][scnhgt-1-d], strp, cc); | |
746 | if (*sp == dlm || *sp == '\0' || nchrs++ >= PW/(WIDTH+1)-1) | |
747 | break; | |
748 | *strp++ = BACKGND; | |
749 | *strp++ = BACKGND; | |
750 | } | |
751 | while (*--strp == BACKGND && strp >= outbuf) | |
752 | ; | |
753 | strp++; | |
754 | *strp++ = '\n'; | |
755 | (void) write(scfd, outbuf, strp-outbuf); | |
756 | } | |
757 | } | |
758 | ||
54266d1f | 759 | static |
df7d5679 RC |
760 | dropit(c) |
761 | char c; | |
762 | { | |
763 | switch(c) { | |
764 | ||
765 | case TRC('_'): | |
766 | case TRC(';'): | |
767 | case TRC(','): | |
768 | case TRC('g'): | |
769 | case TRC('j'): | |
770 | case TRC('p'): | |
771 | case TRC('q'): | |
772 | case TRC('y'): | |
773 | return (DROP); | |
774 | ||
775 | default: | |
776 | return (0); | |
777 | } | |
778 | } | |
779 | ||
780 | /* | |
781 | * sendmail --- | |
782 | * tell people about job completion | |
783 | */ | |
54266d1f | 784 | static |
df7d5679 RC |
785 | sendmail(bombed) |
786 | int bombed; | |
787 | { | |
788 | static int p[2]; | |
789 | register int i; | |
790 | int stat; | |
791 | register char *cp; | |
792 | char buf[100]; | |
793 | ||
794 | pipe(p); | |
795 | if ((stat = dofork(DORETURN)) == 0) { /* child */ | |
796 | dup2(p[0], 0); | |
797 | for (i = 3; i < NOFILE; i++) | |
798 | (void) close(i); | |
799 | if ((cp = rindex(MAIL, '/')) != NULL) | |
800 | cp++; | |
801 | else | |
802 | cp = MAIL; | |
803 | sprintf(buf, "%s@%s", line+1, host); | |
804 | execl(MAIL, cp, buf, 0); | |
805 | exit(0); | |
806 | } else if (stat > 0) { /* parent */ | |
807 | dup2(p[1], 1); | |
808 | printf("To: %s\n", line+1); | |
809 | printf("Subject: printer job\n\n"); | |
810 | printf("Your printer job "); | |
811 | if (*jobname) | |
812 | printf("(%s) ", jobname); | |
88f026f7 RC |
813 | switch (bombed) { |
814 | case 0: | |
815 | printf("\ncompleted successfully\n"); | |
816 | break; | |
817 | default: | |
818 | case 1: | |
819 | printf("\ncould not be printed\n"); | |
820 | break; | |
821 | case 2: | |
822 | printf("\ncould not be printed without an account on %s\n", host); | |
823 | break; | |
824 | } | |
df7d5679 RC |
825 | fflush(stdout); |
826 | (void) close(1); | |
827 | } | |
828 | (void) close(p[0]); | |
829 | (void) close(p[1]); | |
830 | wait(&stat); | |
831 | } | |
832 | ||
833 | /* | |
834 | * dofork - fork with retries on failure | |
835 | */ | |
54266d1f | 836 | static |
df7d5679 RC |
837 | dofork(action) |
838 | int action; | |
839 | { | |
840 | register int i, pid; | |
841 | ||
842 | for (i = 0; i < 20; i++) { | |
88f026f7 | 843 | if ((pid = fork()) < 0) { |
df7d5679 | 844 | sleep((unsigned)(i*i)); |
88f026f7 RC |
845 | continue; |
846 | } | |
847 | /* | |
848 | * Child should run as daemon instead of root | |
849 | */ | |
850 | if (pid == 0) | |
851 | setuid(DU); | |
852 | return(pid); | |
df7d5679 RC |
853 | } |
854 | log("can't fork"); | |
855 | ||
856 | switch (action) { | |
857 | case DORETURN: | |
858 | return (-1); | |
859 | default: | |
860 | log("bad action (%d) to dofork", action); | |
861 | /*FALL THRU*/ | |
862 | case DOABORT: | |
863 | exit(1); | |
864 | } | |
865 | /*NOTREACHED*/ | |
866 | } | |
867 | ||
868 | /* | |
869 | * Cleanup child processes when a SIGINT is caught. | |
870 | */ | |
54266d1f | 871 | static |
df7d5679 RC |
872 | onintr() |
873 | { | |
874 | kill(0, SIGINT); | |
875 | if (ofilter > 0) | |
876 | kill(ofilter, SIGCONT); | |
877 | while (wait(0) > 0) | |
878 | ; | |
879 | exit(0); | |
880 | } | |
881 | ||
54266d1f | 882 | static |
df7d5679 RC |
883 | init() |
884 | { | |
885 | int status; | |
886 | ||
c6d1c018 RC |
887 | if ((status = pgetent(line, printer)) < 0) |
888 | fatal("can't open printer description file"); | |
889 | else if (status == 0) | |
890 | fatal("unknown printer"); | |
df7d5679 RC |
891 | if ((LP = pgetstr("lp", &bp)) == NULL) |
892 | LP = DEFDEVLP; | |
893 | if ((RP = pgetstr("rp", &bp)) == NULL) | |
88f026f7 | 894 | RP = DEFLP; |
df7d5679 RC |
895 | if ((LO = pgetstr("lo", &bp)) == NULL) |
896 | LO = DEFLOCK; | |
897 | if ((ST = pgetstr("st", &bp)) == NULL) | |
898 | ST = DEFSTAT; | |
899 | if ((LF = pgetstr("lf", &bp)) == NULL) | |
900 | LF = DEFLOGF; | |
901 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
902 | SD = DEFSPOOL; | |
903 | if ((DU = pgetnum("du")) < 0) | |
904 | DU = DEFUID; | |
905 | if ((FF = pgetstr("ff", &bp)) == NULL) | |
906 | FF = DEFFF; | |
907 | if ((PW = pgetnum("pw")) < 0) | |
908 | PW = DEFWIDTH; | |
909 | sprintf(&width[2], "%d", PW); | |
910 | if ((PL = pgetnum("pl")) < 0) | |
911 | PL = DEFLENGTH; | |
912 | sprintf(&length[2], "%d", PL); | |
88f026f7 RC |
913 | if ((PX = pgetnum("px")) < 0) |
914 | PX = 0; | |
915 | sprintf(&pxwidth[2], "%d", PX); | |
916 | if ((PY = pgetnum("py")) < 0) | |
917 | PY = 0; | |
918 | sprintf(&pxlength[2], "%d", PY); | |
df7d5679 RC |
919 | RM = pgetstr("rm", &bp); |
920 | AF = pgetstr("af", &bp); | |
921 | OF = pgetstr("of", &bp); | |
922 | IF = pgetstr("if", &bp); | |
88f026f7 | 923 | RF = pgetstr("rf", &bp); |
df7d5679 RC |
924 | TF = pgetstr("tf", &bp); |
925 | DF = pgetstr("df", &bp); | |
926 | GF = pgetstr("gf", &bp); | |
927 | VF = pgetstr("vf", &bp); | |
928 | CF = pgetstr("cf", &bp); | |
929 | TR = pgetstr("tr", &bp); | |
88f026f7 | 930 | RS = pgetflag("rs"); |
df7d5679 RC |
931 | SF = pgetflag("sf"); |
932 | SH = pgetflag("sh"); | |
933 | SB = pgetflag("sb"); | |
934 | RW = pgetflag("rw"); | |
935 | BR = pgetnum("br"); | |
936 | if ((FC = pgetnum("fc")) < 0) | |
937 | FC = 0; | |
938 | if ((FS = pgetnum("fs")) < 0) | |
939 | FS = 0; | |
940 | if ((XC = pgetnum("xc")) < 0) | |
941 | XC = 0; | |
942 | if ((XS = pgetnum("xs")) < 0) | |
943 | XS = 0; | |
6bd17dac | 944 | tof = !pgetflag("fo"); |
df7d5679 RC |
945 | } |
946 | ||
88f026f7 RC |
947 | /* |
948 | * Acquire line printer or remote connection. | |
949 | */ | |
54266d1f | 950 | static |
88f026f7 RC |
951 | openpr() |
952 | { | |
953 | register int i, n; | |
954 | ||
955 | if (*LP) { | |
956 | for (i = 1; ; i = i < 32 ? i << 1 : i) { | |
adec4d9e | 957 | pfd = open(LP, RW ? O_RDWR : O_WRONLY); |
88f026f7 RC |
958 | if (pfd >= 0) |
959 | break; | |
960 | if (errno == ENOENT) { | |
961 | log("cannot open %s", LP); | |
962 | exit(1); | |
963 | } | |
964 | if (i == 1) | |
965 | status("waiting for %s to become ready (offline ?)", printer); | |
966 | sleep(i); | |
967 | } | |
968 | if (isatty(pfd)) | |
969 | setty(); | |
970 | status("%s is ready and printing", printer); | |
971 | } else if (RM != NULL) { | |
972 | for (i = 1; ; i = i < 512 ? i << 1 : i) { | |
a87bde97 | 973 | pfd = getport(RM); |
88f026f7 RC |
974 | if (pfd >= 0) { |
975 | (void) sprintf(line, "\2%s\n", RP); | |
976 | n = strlen(line); | |
977 | if (write(pfd, line, n) != n) | |
978 | break; | |
979 | if (noresponse()) | |
980 | (void) close(pfd); | |
981 | else | |
982 | break; | |
983 | } | |
984 | if (i == 1) | |
985 | status("waiting for %s to come up", RM); | |
986 | sleep(i); | |
987 | } | |
988 | status("sending to %s", RM); | |
989 | remote = 1; | |
990 | } else { | |
991 | log("no line printer device or remote machine name"); | |
992 | exit(1); | |
993 | } | |
994 | /* | |
995 | * Start up an output filter, if needed. | |
996 | */ | |
997 | if (OF) { | |
998 | int p[2]; | |
999 | char *cp; | |
1000 | ||
1001 | pipe(p); | |
1002 | if ((ofilter = dofork(DOABORT)) == 0) { /* child */ | |
1003 | dup2(p[0], 0); /* pipe is std in */ | |
1004 | dup2(pfd, 1); /* printer is std out */ | |
1005 | for (i = 3; i < NOFILE; i++) | |
1006 | (void) close(i); | |
1007 | if ((cp = rindex(OF, '/')) == NULL) | |
1008 | cp = OF; | |
1009 | else | |
1010 | cp++; | |
1011 | execl(OF, cp, width, length, 0); | |
1012 | log("can't execl output filter %s", OF); | |
1013 | exit(1); | |
1014 | } | |
1015 | (void) close(p[0]); /* close input side */ | |
1016 | ofd = p[1]; /* use pipe for output */ | |
1017 | } else { | |
1018 | ofd = pfd; | |
1019 | ofilter = 0; | |
1020 | } | |
1021 | } | |
1022 | ||
df7d5679 RC |
1023 | struct bauds { |
1024 | int baud; | |
1025 | int speed; | |
1026 | } bauds[] = { | |
1027 | 50, B50, | |
1028 | 75, B75, | |
1029 | 110, B110, | |
1030 | 134, B134, | |
1031 | 150, B150, | |
1032 | 200, B200, | |
1033 | 300, B300, | |
1034 | 600, B600, | |
1035 | 1200, B1200, | |
1036 | 1800, B1800, | |
1037 | 2400, B2400, | |
1038 | 4800, B4800, | |
1039 | 9600, B9600, | |
1040 | 19200, EXTA, | |
1041 | 38400, EXTB, | |
1042 | 0, 0 | |
1043 | }; | |
1044 | ||
1045 | /* | |
1046 | * setup tty lines. | |
1047 | */ | |
54266d1f | 1048 | static |
df7d5679 RC |
1049 | setty() |
1050 | { | |
1051 | struct sgttyb ttybuf; | |
1052 | register struct bauds *bp; | |
1053 | ||
1054 | if (ioctl(pfd, TIOCEXCL, (char *)0) < 0) { | |
1055 | log("cannot set exclusive-use"); | |
1056 | exit(1); | |
1057 | } | |
1058 | if (ioctl(pfd, TIOCGETP, (char *)&ttybuf) < 0) { | |
1059 | log("cannot get tty parameters"); | |
1060 | exit(1); | |
1061 | } | |
1062 | if (BR > 0) { | |
1063 | for (bp = bauds; bp->baud; bp++) | |
1064 | if (BR == bp->baud) | |
1065 | break; | |
1066 | if (!bp->baud) { | |
1067 | log("illegal baud rate %d", BR); | |
1068 | exit(1); | |
1069 | } | |
1070 | ttybuf.sg_ispeed = ttybuf.sg_ospeed = bp->speed; | |
1071 | } | |
c6d1c018 RC |
1072 | ttybuf.sg_flags &= ~FC; |
1073 | ttybuf.sg_flags |= FS; | |
df7d5679 RC |
1074 | if (ioctl(pfd, TIOCSETP, (char *)&ttybuf) < 0) { |
1075 | log("cannot set tty parameters"); | |
1076 | exit(1); | |
1077 | } | |
1078 | if (XC) { | |
1079 | if (ioctl(pfd, TIOCLBIC, &XC) < 0) { | |
1080 | log("cannot set local tty parameters"); | |
1081 | exit(1); | |
1082 | } | |
1083 | } | |
1084 | if (XS) { | |
1085 | if (ioctl(pfd, TIOCLBIS, &XS) < 0) { | |
1086 | log("cannot set local tty parameters"); | |
1087 | exit(1); | |
1088 | } | |
1089 | } | |
1090 | } | |
88f026f7 RC |
1091 | |
1092 | /*VARARGS1*/ | |
1093 | static | |
1094 | status(msg, a1, a2, a3) | |
1095 | char *msg; | |
1096 | { | |
1097 | register int fd; | |
1098 | char buf[BUFSIZ]; | |
1099 | ||
1100 | umask(0); | |
adec4d9e SL |
1101 | fd = open(ST, O_WRONLY|O_CREAT, 0664); |
1102 | if (fd < 0 || flock(fd, LOCK_EX) < 0) | |
88f026f7 | 1103 | fatal("cannot create status file"); |
adec4d9e | 1104 | ftruncate(fd, 0); |
88f026f7 RC |
1105 | sprintf(buf, msg, a1, a2, a3); |
1106 | strcat(buf, "\n"); | |
1107 | (void) write(fd, buf, strlen(buf)); | |
1108 | (void) close(fd); | |
1109 | } |