Commit | Line | Data |
---|---|---|
8fed920b | 1 | /* printjob.c 4.10 83/06/29 */ |
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 */ |
8fed920b | 45 | (void) write(1, "", 1); /* ack that daemon is started */ |
54266d1f RC |
46 | (void) close(1); /* set up log file */ |
47 | (void) close(2); | |
adec4d9e SL |
48 | if (open(LF, O_WRONLY|O_APPEND) < 0) |
49 | (void) open("/dev/null", O_WRONLY); | |
54266d1f | 50 | dup(1); |
88f026f7 | 51 | pid = getpid(); /* for use with lprm */ |
df7d5679 | 52 | setpgrp(0, pid); |
adec4d9e | 53 | signal(SIGINT, onintr); |
df7d5679 RC |
54 | |
55 | /* | |
56 | * uses short form file names | |
57 | */ | |
58 | if (chdir(SD) < 0) { | |
59 | log("cannot chdir to %s", SD); | |
60 | exit(1); | |
61 | } | |
88f026f7 RC |
62 | if (stat(LO, &stb) == 0 && (stb.st_mode & 0100)) |
63 | exit(0); /* printing disabled */ | |
c6d1c018 RC |
64 | lfd = open(LO, O_WRONLY|O_CREAT|O_TRUNC, 0644); |
65 | if (lfd < 0) { | |
66 | log("cannot create %s", LO); | |
67 | exit(1); | |
68 | } | |
69 | if (flock(lfd, LOCK_EX|LOCK_NB) < 0) { | |
df7d5679 RC |
70 | if (errno == EWOULDBLOCK) /* active deamon present */ |
71 | exit(0); | |
c6d1c018 | 72 | log("cannot lock %s", LO); |
df7d5679 RC |
73 | exit(1); |
74 | } | |
adec4d9e | 75 | ftruncate(lfd, 0); |
df7d5679 RC |
76 | /* |
77 | * write process id for others to know | |
78 | */ | |
79 | sprintf(line, "%u\n", pid); | |
80 | pidoff = i = strlen(line); | |
88f026f7 | 81 | if (write(lfd, line, i) != i) { |
df7d5679 | 82 | log("cannot write daemon pid"); |
df7d5679 RC |
83 | exit(1); |
84 | } | |
df7d5679 RC |
85 | /* |
86 | * search the spool directory for work and sort by queue order. | |
87 | */ | |
df7d5679 RC |
88 | if ((nitems = getq(&queue)) < 0) { |
89 | log("can't scan spool directory %s", SD); | |
90 | exit(1); | |
91 | } | |
88f026f7 | 92 | if (nitems == 0) /* no work to do */ |
df7d5679 | 93 | exit(0); |
c6d1c018 RC |
94 | if (stb.st_mode & 01) { /* reset queue flag */ |
95 | if (fchmod(lfd, stb.st_mode & 0776) < 0) | |
96 | log("cannot chmod %s", LO); | |
97 | } | |
88f026f7 RC |
98 | openpr(); /* open printer or remote */ |
99 | again: | |
df7d5679 RC |
100 | /* |
101 | * we found something to do now do it -- | |
102 | * write the name of the current control file into the lock file | |
103 | * so the spool queue program can tell what we're working on | |
104 | */ | |
105 | for (qp = queue; nitems--; free((char *) q)) { | |
106 | q = *qp++; | |
107 | if (stat(q->q_name, &stb) < 0) | |
108 | continue; | |
88f026f7 | 109 | restart: |
df7d5679 RC |
110 | (void) lseek(lfd, pidoff, 0); |
111 | (void) sprintf(line, "%s\n", q->q_name); | |
112 | i = strlen(line); | |
113 | if (write(lfd, line, i) != i) | |
114 | log("can't write (%d) control file name", errno); | |
115 | if (!remote) | |
116 | i = printit(q->q_name); | |
117 | else | |
118 | i = sendit(q->q_name); | |
88f026f7 | 119 | /* |
c6d1c018 RC |
120 | * Check to see if we are supposed to stop printing or |
121 | * if we are to rebuild the queue. | |
88f026f7 | 122 | */ |
c6d1c018 RC |
123 | if (fstat(lfd, &stb) == 0) { |
124 | if (stb.st_mode & 0100) | |
125 | goto done; | |
126 | if (stb.st_mode & 01) { | |
127 | for (free((char *) q); nitems--; free((char *) q)) | |
128 | q = *qp++; | |
129 | if (fchmod(lfd, stb.st_mode & 0776) < 0) | |
130 | log("cannot chmod %s", LO); | |
131 | break; | |
132 | } | |
133 | } | |
88f026f7 RC |
134 | /* |
135 | * Check to see if we should try reprinting the job. | |
136 | */ | |
137 | if (i > 0) { | |
df7d5679 RC |
138 | log("restarting"); |
139 | if (ofilter > 0) { | |
140 | kill(ofilter, SIGCONT); /* to be sure */ | |
141 | (void) close(ofd); | |
142 | while ((i = wait(0)) > 0 && i != ofilter) | |
143 | ; | |
144 | ofilter = 0; | |
145 | } | |
88f026f7 RC |
146 | (void) close(pfd); /* close printer */ |
147 | (void) lseek(lfd, pidoff, 0); | |
148 | if (write(lfd, "\n", 1) != 1) | |
149 | log("can't write (%d) control file name", errno); | |
150 | openpr(); /* try to reopen printer */ | |
df7d5679 RC |
151 | goto restart; |
152 | } | |
153 | } | |
154 | free((char *) queue); | |
88f026f7 RC |
155 | /* |
156 | * search the spool directory for more work. | |
157 | */ | |
158 | if ((nitems = getq(&queue)) < 0) { | |
159 | log("can't scan spool directory %s", SD); | |
160 | exit(1); | |
161 | } | |
162 | if (nitems == 0) { /* no more work to do */ | |
163 | done: | |
164 | if (!SF && !tof) | |
165 | (void) write(ofd, FF, strlen(FF)); | |
166 | if (TR != NULL) /* output trailer */ | |
167 | (void) write(ofd, TR, strlen(TR)); | |
168 | exit(0); | |
169 | } | |
df7d5679 RC |
170 | goto again; |
171 | } | |
172 | ||
173 | char fonts[4][50]; /* fonts for troff */ | |
174 | ||
175 | static char ifonts[4][18] = { | |
176 | "/usr/lib/vfont/R", | |
177 | "/usr/lib/vfont/I", | |
178 | "/usr/lib/vfont/B", | |
179 | "/usr/lib/vfont/S" | |
180 | }; | |
181 | ||
182 | /* | |
183 | * The remaining part is the reading of the control file (cf) | |
184 | * and performing the various actions. | |
185 | * Returns 0 if everthing was OK, 1 if we should try to reprint the job and | |
186 | * -1 if a non-recoverable error occured. | |
187 | */ | |
54266d1f | 188 | static |
df7d5679 RC |
189 | printit(file) |
190 | char *file; | |
191 | { | |
192 | register int i; | |
193 | int bombed = 0; | |
194 | ||
195 | /* | |
196 | * open control file | |
197 | */ | |
198 | if ((cfp = fopen(file, "r")) == NULL) { | |
199 | log("control file (%s) open failure <errno = %d>", file, errno); | |
200 | return(0); | |
201 | } | |
202 | /* | |
203 | * Reset troff fonts. | |
204 | */ | |
205 | for (i = 0; i < 4; i++) | |
206 | strcpy(fonts[i], ifonts[i]); | |
207 | ||
208 | /* | |
209 | * read the control file for work to do | |
210 | * | |
211 | * file format -- first character in the line is a command | |
212 | * rest of the line is the argument. | |
213 | * valid commands are: | |
214 | * | |
215 | * J -- "job name" on banner page | |
216 | * C -- "class name" on banner page | |
217 | * L -- "literal" user's name to print on banner | |
218 | * T -- "title" for pr | |
219 | * H -- "host name" of machine where lpr was done | |
220 | * P -- "person" user's login name | |
6bd17dac | 221 | * I -- "indent" amount to indent output |
df7d5679 RC |
222 | * f -- "file name" name of text file to print |
223 | * l -- "file name" text file with control chars | |
224 | * p -- "file name" text file to print with pr(1) | |
225 | * t -- "file name" troff(1) file to print | |
a4f59913 | 226 | * n -- "file name" ditroff(1) file to print |
df7d5679 RC |
227 | * d -- "file name" dvi file to print |
228 | * g -- "file name" plot(1G) file to print | |
229 | * v -- "file name" plain raster file to print | |
230 | * c -- "file name" cifplot file to print | |
231 | * 1 -- "R font file" for troff | |
232 | * 2 -- "I font file" for troff | |
233 | * 3 -- "B font file" for troff | |
234 | * 4 -- "S font file" for troff | |
235 | * N -- "name" of file (used by lpq) | |
236 | * U -- "unlink" name of file to remove | |
237 | * (after we print it. (Pass 2 only)). | |
238 | * M -- "mail" to user when done printing | |
239 | * | |
240 | * getline reads a line and expands tabs to blanks | |
241 | */ | |
242 | ||
243 | /* pass 1 */ | |
244 | ||
245 | while (getline(cfp)) | |
246 | switch (line[0]) { | |
247 | case 'H': | |
248 | strcpy(host, line+1); | |
249 | if (class[0] == '\0') | |
250 | strcpy(class, line+1); | |
251 | continue; | |
252 | ||
253 | case 'P': | |
254 | strcpy(logname, line+1); | |
88f026f7 RC |
255 | if (RS) { /* restricted */ |
256 | if (getpwnam(logname) == (struct passwd *)0) { | |
257 | bombed = 2; | |
258 | sendmail(bombed); | |
259 | goto pass2; | |
260 | } | |
261 | } | |
df7d5679 RC |
262 | continue; |
263 | ||
264 | case 'J': | |
265 | if (line[1] != '\0') | |
266 | strcpy(jobname, line+1); | |
267 | else | |
268 | strcpy(jobname, " "); | |
269 | continue; | |
270 | ||
271 | case 'C': | |
272 | if (line[1] != '\0') | |
273 | strcpy(class, line+1); | |
274 | else if (class[0] == '\0') | |
275 | gethostname(class, sizeof (class)); | |
276 | continue; | |
277 | ||
278 | case 'T': /* header title for pr */ | |
279 | strcpy(title, line+1); | |
280 | continue; | |
281 | ||
282 | case 'L': /* identification line */ | |
283 | if (!SH) | |
284 | banner(line+1, jobname); | |
285 | continue; | |
286 | ||
287 | case '1': /* troff fonts */ | |
288 | case '2': | |
289 | case '3': | |
290 | case '4': | |
291 | if (line[1] != '\0') | |
292 | strcpy(fonts[line[0]-'1'], line+1); | |
293 | continue; | |
294 | ||
295 | case 'W': /* page width */ | |
296 | strcpy(width+2, line+1); | |
297 | continue; | |
298 | ||
6bd17dac RC |
299 | case 'I': /* indent amount */ |
300 | strcpy(indent+2, line+1); | |
301 | continue; | |
302 | ||
df7d5679 RC |
303 | default: /* some file to print */ |
304 | if ((i = print(line[0], line+1)) > 0) { | |
305 | (void) fclose(cfp); | |
306 | return(1); | |
307 | } else if (i < 0) | |
308 | bombed = 1; | |
309 | title[0] = '\0'; | |
310 | continue; | |
311 | ||
df7d5679 RC |
312 | case 'N': |
313 | case 'U': | |
314 | case 'M': | |
315 | continue; | |
316 | } | |
317 | ||
318 | /* pass 2 */ | |
319 | ||
88f026f7 | 320 | pass2: |
df7d5679 RC |
321 | fseek(cfp, 0L, 0); |
322 | while (getline(cfp)) | |
323 | switch (line[0]) { | |
324 | case 'M': | |
88f026f7 RC |
325 | if (bombed != 2) /* already sent if 2 */ |
326 | sendmail(bombed); | |
df7d5679 RC |
327 | continue; |
328 | ||
329 | case 'U': | |
330 | (void) unlink(line+1); | |
331 | } | |
332 | /* | |
333 | * clean-up incase another control file exists | |
334 | */ | |
335 | (void) fclose(cfp); | |
336 | (void) unlink(file); | |
337 | return(0); | |
338 | } | |
339 | ||
340 | /* | |
341 | * Print a file. | |
a4f59913 | 342 | * Set up the chain [ PR [ | {IF, OF} ] ] or {IF, RF, TF, NF, DF, CF, VF}. |
df7d5679 RC |
343 | * Return -1 if a non-recoverable error occured, 1 if a recoverable error and |
344 | * 0 if all is well. | |
345 | * Note: all filters take stdin as the file, stdout as the printer, | |
346 | * stderr as the log file, and must not ignore SIGINT. | |
347 | */ | |
54266d1f | 348 | static |
df7d5679 RC |
349 | print(format, file) |
350 | int format; | |
351 | char *file; | |
352 | { | |
353 | register int n, fi, fo; | |
354 | register char *prog; | |
355 | char *av[15], buf[BUFSIZ]; | |
356 | int pid, p[2], stopped = 0; | |
357 | union wait status; | |
358 | ||
adec4d9e | 359 | if ((fi = open(file, O_RDONLY)) < 0) { |
df7d5679 RC |
360 | log("%s: open failure <errno = %d>", file, errno); |
361 | return(-1); | |
362 | } | |
363 | if (!SF && !tof) { /* start on a fresh page */ | |
364 | (void) write(ofd, FF, strlen(FF)); | |
365 | tof = 1; | |
366 | } | |
367 | if (IF == NULL && (format == 'f' || format == 'l')) { | |
368 | tof = 0; | |
369 | while ((n = read(fi, buf, BUFSIZ)) > 0) | |
370 | if (write(ofd, buf, n) != n) { | |
371 | (void) close(fi); | |
372 | return(1); | |
373 | } | |
374 | (void) close(fi); | |
375 | return(0); | |
376 | } | |
377 | switch (format) { | |
378 | case 'p': /* print file using 'pr' */ | |
379 | if (IF == NULL) { /* use output filter */ | |
380 | prog = PR; | |
381 | av[0] = "pr"; | |
382 | av[1] = width; | |
383 | av[2] = length; | |
384 | av[3] = "-h"; | |
385 | av[4] = *title ? title : " "; | |
386 | av[5] = 0; | |
387 | fo = ofd; | |
388 | goto start; | |
389 | } | |
390 | pipe(p); | |
391 | if ((prchild = dofork(DORETURN)) == 0) { /* child */ | |
392 | dup2(fi, 0); /* file is stdin */ | |
393 | dup2(p[1], 1); /* pipe is stdout */ | |
394 | for (n = 3; n < NOFILE; n++) | |
395 | (void) close(n); | |
396 | execl(PR, "pr", width, length, "-h", *title ? title : " ", 0); | |
397 | log("cannot execl %s", PR); | |
398 | exit(2); | |
399 | } | |
400 | (void) close(p[1]); /* close output side */ | |
401 | (void) close(fi); | |
402 | if (prchild < 0) { | |
403 | prchild = 0; | |
404 | (void) close(p[0]); | |
405 | return(-1); | |
406 | } | |
407 | fi = p[0]; /* use pipe for input */ | |
408 | case 'f': /* print plain text file */ | |
409 | prog = IF; | |
410 | av[1] = width; | |
411 | av[2] = length; | |
6bd17dac RC |
412 | av[3] = indent; |
413 | n = 4; | |
df7d5679 RC |
414 | break; |
415 | case 'l': /* like 'f' but pass control characters */ | |
416 | prog = IF; | |
417 | av[1] = "-l"; | |
418 | av[2] = width; | |
419 | av[3] = length; | |
6bd17dac RC |
420 | av[4] = indent; |
421 | n = 5; | |
df7d5679 | 422 | break; |
88f026f7 RC |
423 | case 'r': /* print a fortran text file */ |
424 | prog = RF; | |
425 | av[1] = width; | |
426 | av[2] = length; | |
427 | n = 3; | |
428 | break; | |
df7d5679 | 429 | case 't': /* print troff output */ |
a4f59913 | 430 | case 'n': /* print ditroff output */ |
88f026f7 | 431 | case 'd': /* print tex output */ |
df7d5679 | 432 | (void) unlink(".railmag"); |
88f026f7 | 433 | if ((fo = creat(".railmag", FILMOD)) < 0) { |
df7d5679 RC |
434 | log("cannot create .railmag"); |
435 | (void) unlink(".railmag"); | |
436 | } else { | |
437 | for (n = 0; n < 4; n++) { | |
438 | if (fonts[n][0] != '/') | |
439 | (void) write(fo, "/usr/lib/vfont/", 15); | |
440 | (void) write(fo, fonts[n], strlen(fonts[n])); | |
441 | (void) write(fo, "\n", 1); | |
442 | } | |
443 | (void) close(fo); | |
444 | } | |
a4f59913 | 445 | prog = (format == 't') ? TF : (format == 'n') ? NF : DF; |
88f026f7 RC |
446 | av[1] = pxwidth; |
447 | av[2] = pxlength; | |
448 | n = 3; | |
df7d5679 RC |
449 | break; |
450 | case 'c': /* print cifplot output */ | |
451 | prog = CF; | |
88f026f7 RC |
452 | av[1] = pxwidth; |
453 | av[2] = pxlength; | |
454 | n = 3; | |
df7d5679 RC |
455 | break; |
456 | case 'g': /* print plot(1G) output */ | |
457 | prog = GF; | |
88f026f7 RC |
458 | av[1] = pxwidth; |
459 | av[2] = pxlength; | |
460 | n = 3; | |
df7d5679 RC |
461 | break; |
462 | case 'v': /* print raster output */ | |
463 | prog = VF; | |
88f026f7 RC |
464 | av[1] = pxwidth; |
465 | av[2] = pxlength; | |
466 | n = 3; | |
df7d5679 RC |
467 | break; |
468 | default: | |
469 | (void) close(fi); | |
470 | log("illegal format character '%c'", format); | |
471 | return(-1); | |
472 | } | |
473 | if ((av[0] = rindex(prog, '/')) != NULL) | |
474 | av[0]++; | |
475 | else | |
476 | av[0] = prog; | |
477 | av[n++] = "-n"; | |
478 | av[n++] = logname; | |
479 | av[n++] = "-h"; | |
480 | av[n++] = host; | |
481 | av[n++] = AF; | |
482 | av[n] = 0; | |
483 | fo = pfd; | |
484 | if (ofilter > 0) { /* stop output filter */ | |
485 | write(ofd, "\031\1", 2); | |
486 | while ((pid = wait3(&status, WUNTRACED, 0)) > 0 && pid != ofilter) | |
487 | ; | |
488 | if (status.w_stopval != WSTOPPED) { | |
489 | (void) close(fi); | |
490 | log("output filter died (%d)", status.w_retcode); | |
491 | return(1); | |
492 | } | |
493 | stopped++; | |
494 | } | |
495 | start: | |
496 | if ((child = dofork(DORETURN)) == 0) { /* child */ | |
497 | dup2(fi, 0); | |
498 | dup2(fo, 1); | |
499 | for (n = 3; n < NOFILE; n++) | |
500 | (void) close(n); | |
501 | execv(prog, av); | |
502 | log("cannot execl %s", prog); | |
503 | exit(2); | |
504 | } | |
505 | (void) close(fi); | |
506 | if (child < 0) | |
507 | status.w_retcode = 100; | |
508 | else | |
509 | while ((pid = wait(&status)) > 0 && pid != child) | |
510 | ; | |
511 | child = 0; | |
512 | prchild = 0; | |
513 | if (stopped) { /* restart output filter */ | |
514 | if (kill(ofilter, SIGCONT) < 0) { | |
515 | log("cannot restart output filter"); | |
516 | exit(1); | |
517 | } | |
518 | } | |
519 | tof = 0; | |
520 | if (!WIFEXITED(status) || status.w_retcode > 1) { | |
521 | log("Daemon Filter '%c' Malfunction (%d)", format, status.w_retcode); | |
522 | return(-1); | |
523 | } else if (status.w_retcode == 1) | |
524 | return(1); | |
525 | tof = 1; | |
526 | return(0); | |
527 | } | |
528 | ||
529 | /* | |
530 | * Send the daemon control file (cf) and any data files. | |
531 | * Return -1 if a non-recoverable error occured, 1 if a recoverable error and | |
532 | * 0 if all is well. | |
533 | */ | |
54266d1f | 534 | static |
df7d5679 RC |
535 | sendit(file) |
536 | char *file; | |
537 | { | |
538 | register int linelen, err = 0; | |
539 | char last[132]; | |
540 | ||
541 | /* | |
542 | * open control file | |
543 | */ | |
544 | if ((cfp = fopen(file, "r")) == NULL) { | |
545 | log("control file (%s) open failure <errno = %d>", file, errno); | |
546 | return(0); | |
547 | } | |
548 | /* | |
549 | * read the control file for work to do | |
550 | * | |
551 | * file format -- first character in the line is a command | |
552 | * rest of the line is the argument. | |
553 | * commands of interest are: | |
554 | * | |
555 | * a-z -- "file name" name of file to print | |
556 | * U -- "unlink" name of file to remove | |
557 | * (after we print it. (Pass 2 only)). | |
558 | */ | |
559 | ||
560 | /* | |
561 | * pass 1 | |
562 | */ | |
563 | while (getline(cfp)) { | |
564 | again: | |
565 | if (line[0] >= 'a' && line[0] <= 'z') { | |
566 | strcpy(last, line); | |
567 | while (linelen = getline(cfp)) | |
568 | if (strcmp(last, line)) | |
569 | break; | |
570 | if ((err = sendfile('\3', last+1)) > 0) { | |
571 | (void) fclose(cfp); | |
572 | return(1); | |
573 | } else if (err) | |
574 | break; | |
575 | if (linelen) | |
576 | goto again; | |
577 | break; | |
578 | } | |
579 | } | |
580 | if (!err && sendfile('\2', file) > 0) { | |
581 | (void) fclose(cfp); | |
582 | return(1); | |
583 | } | |
584 | /* | |
585 | * pass 2 | |
586 | */ | |
587 | fseek(cfp, 0L, 0); | |
588 | while (getline(cfp)) | |
589 | if (line[0] == 'U') | |
590 | (void) unlink(line+1); | |
591 | /* | |
592 | * clean-up incase another control file exists | |
593 | */ | |
594 | (void) fclose(cfp); | |
595 | (void) unlink(file); | |
596 | return(0); | |
597 | } | |
598 | ||
599 | /* | |
600 | * Send a data file to the remote machine and spool it. | |
601 | * Return positive if we should try resending. | |
602 | */ | |
54266d1f | 603 | static |
df7d5679 RC |
604 | sendfile(type, file) |
605 | char type, *file; | |
606 | { | |
607 | register int f, i, amt; | |
608 | struct stat stb; | |
609 | char buf[BUFSIZ]; | |
610 | int sizerr; | |
611 | ||
adec4d9e | 612 | if ((f = open(file, O_RDONLY)) < 0 || fstat(f, &stb) < 0) { |
df7d5679 RC |
613 | log("file (%s) open failure <errno = %d>", file, errno); |
614 | return(-1); | |
615 | } | |
616 | (void) sprintf(buf, "%c%d %s\n", type, stb.st_size, file); | |
617 | amt = strlen(buf); | |
48ca7288 RC |
618 | if (write(pfd, buf, amt) != amt) { |
619 | (void) close(f); | |
df7d5679 | 620 | return(1); |
48ca7288 RC |
621 | } |
622 | if (noresponse()) { | |
623 | (void) close(f); | |
df7d5679 | 624 | return(1); |
48ca7288 | 625 | } |
df7d5679 RC |
626 | sizerr = 0; |
627 | for (i = 0; i < stb.st_size; i += BUFSIZ) { | |
628 | amt = BUFSIZ; | |
629 | if (i + amt > stb.st_size) | |
630 | amt = stb.st_size - i; | |
631 | if (sizerr == 0 && read(f, buf, amt) != amt) | |
632 | sizerr = 1; | |
48ca7288 RC |
633 | if (write(pfd, buf, amt) != amt) { |
634 | (void) close(f); | |
df7d5679 | 635 | return(1); |
48ca7288 | 636 | } |
df7d5679 RC |
637 | } |
638 | (void) close(f); | |
639 | if (sizerr) { | |
640 | log("%s: changed size", file); | |
641 | (void) write(pfd, "\1", 1); /* tell recvjob to ignore this file */ | |
642 | return(-1); | |
643 | } | |
644 | if (write(pfd, "", 1) != 1) | |
645 | return(1); | |
646 | if (noresponse()) | |
647 | return(1); | |
648 | return(0); | |
649 | } | |
650 | ||
651 | /* | |
652 | * Check to make sure there have been no errors and that both programs | |
653 | * are in sync with eachother. | |
654 | * Return non-zero if the connection was lost. | |
655 | */ | |
656 | static | |
657 | noresponse() | |
658 | { | |
659 | char resp; | |
660 | ||
661 | if (read(pfd, &resp, 1) != 1 || resp != '\0') { | |
662 | log("lost connection or error in recvjob"); | |
663 | return(1); | |
664 | } | |
665 | return(0); | |
666 | } | |
667 | ||
668 | /* | |
669 | * Banner printing stuff | |
670 | */ | |
54266d1f | 671 | static |
df7d5679 RC |
672 | banner(name1, name2) |
673 | char *name1, *name2; | |
674 | { | |
675 | time_t tvec; | |
676 | extern char *ctime(); | |
677 | ||
678 | time(&tvec); | |
679 | if (!SF && !tof) | |
680 | (void) write(ofd, FF, strlen(FF)); | |
681 | if (SB) { /* short banner only */ | |
682 | if (class[0]) { | |
683 | (void) write(ofd, class, strlen(class)); | |
684 | (void) write(ofd, ":", 1); | |
685 | } | |
686 | (void) write(ofd, name1, strlen(name1)); | |
687 | (void) write(ofd, " Job: ", 7); | |
688 | (void) write(ofd, name2, strlen(name2)); | |
689 | (void) write(ofd, " Date: ", 8); | |
690 | (void) write(ofd, ctime(&tvec), 24); | |
691 | (void) write(ofd, "\n", 1); | |
692 | } else { /* normal banner */ | |
693 | (void) write(ofd, "\n\n\n", 3); | |
694 | scan_out(ofd, name1, '\0'); | |
695 | (void) write(ofd, "\n\n", 2); | |
696 | scan_out(ofd, name2, '\0'); | |
697 | if (class[0]) { | |
698 | (void) write(ofd,"\n\n\n",3); | |
699 | scan_out(ofd, class, '\0'); | |
700 | } | |
701 | (void) write(ofd, "\n\n\n\n\t\t\t\t\tJob: ", 15); | |
702 | (void) write(ofd, name2, strlen(name2)); | |
703 | (void) write(ofd, "\n\t\t\t\t\tDate: ", 12); | |
704 | (void) write(ofd, ctime(&tvec), 24); | |
705 | (void) write(ofd, "\n", 1); | |
706 | } | |
707 | if (!SF) | |
708 | (void) write(ofd, FF, strlen(FF)); | |
709 | tof = 1; | |
710 | } | |
711 | ||
54266d1f | 712 | static char * |
df7d5679 RC |
713 | scnline(key, p, c) |
714 | register char key, *p; | |
715 | char c; | |
716 | { | |
717 | register scnwidth; | |
718 | ||
719 | for (scnwidth = WIDTH; --scnwidth;) { | |
720 | key <<= 1; | |
721 | *p++ = key & 0200 ? c : BACKGND; | |
722 | } | |
723 | return (p); | |
724 | } | |
725 | ||
726 | #define TRC(q) (((q)-' ')&0177) | |
727 | ||
54266d1f | 728 | static |
df7d5679 RC |
729 | scan_out(scfd, scsp, dlm) |
730 | int scfd; | |
731 | char *scsp, dlm; | |
732 | { | |
733 | register char *strp; | |
734 | register nchrs, j; | |
735 | char outbuf[LINELEN+1], *sp, c, cc; | |
736 | int d, scnhgt; | |
737 | extern char scnkey[][HEIGHT]; /* in lpdchar.c */ | |
738 | ||
739 | for (scnhgt = 0; scnhgt++ < HEIGHT+DROP; ) { | |
740 | strp = &outbuf[0]; | |
741 | sp = scsp; | |
742 | for (nchrs = 0; ; ) { | |
743 | d = dropit(c = TRC(cc = *sp++)); | |
744 | if ((!d && scnhgt > HEIGHT) || (scnhgt <= DROP && d)) | |
745 | for (j = WIDTH; --j;) | |
746 | *strp++ = BACKGND; | |
747 | else | |
748 | strp = scnline(scnkey[c][scnhgt-1-d], strp, cc); | |
749 | if (*sp == dlm || *sp == '\0' || nchrs++ >= PW/(WIDTH+1)-1) | |
750 | break; | |
751 | *strp++ = BACKGND; | |
752 | *strp++ = BACKGND; | |
753 | } | |
754 | while (*--strp == BACKGND && strp >= outbuf) | |
755 | ; | |
756 | strp++; | |
757 | *strp++ = '\n'; | |
758 | (void) write(scfd, outbuf, strp-outbuf); | |
759 | } | |
760 | } | |
761 | ||
54266d1f | 762 | static |
df7d5679 RC |
763 | dropit(c) |
764 | char c; | |
765 | { | |
766 | switch(c) { | |
767 | ||
768 | case TRC('_'): | |
769 | case TRC(';'): | |
770 | case TRC(','): | |
771 | case TRC('g'): | |
772 | case TRC('j'): | |
773 | case TRC('p'): | |
774 | case TRC('q'): | |
775 | case TRC('y'): | |
776 | return (DROP); | |
777 | ||
778 | default: | |
779 | return (0); | |
780 | } | |
781 | } | |
782 | ||
783 | /* | |
784 | * sendmail --- | |
785 | * tell people about job completion | |
786 | */ | |
54266d1f | 787 | static |
df7d5679 RC |
788 | sendmail(bombed) |
789 | int bombed; | |
790 | { | |
791 | static int p[2]; | |
792 | register int i; | |
793 | int stat; | |
794 | register char *cp; | |
795 | char buf[100]; | |
796 | ||
797 | pipe(p); | |
798 | if ((stat = dofork(DORETURN)) == 0) { /* child */ | |
799 | dup2(p[0], 0); | |
800 | for (i = 3; i < NOFILE; i++) | |
801 | (void) close(i); | |
802 | if ((cp = rindex(MAIL, '/')) != NULL) | |
803 | cp++; | |
804 | else | |
805 | cp = MAIL; | |
806 | sprintf(buf, "%s@%s", line+1, host); | |
807 | execl(MAIL, cp, buf, 0); | |
808 | exit(0); | |
809 | } else if (stat > 0) { /* parent */ | |
810 | dup2(p[1], 1); | |
811 | printf("To: %s\n", line+1); | |
812 | printf("Subject: printer job\n\n"); | |
813 | printf("Your printer job "); | |
814 | if (*jobname) | |
815 | printf("(%s) ", jobname); | |
88f026f7 RC |
816 | switch (bombed) { |
817 | case 0: | |
818 | printf("\ncompleted successfully\n"); | |
819 | break; | |
820 | default: | |
821 | case 1: | |
822 | printf("\ncould not be printed\n"); | |
823 | break; | |
824 | case 2: | |
825 | printf("\ncould not be printed without an account on %s\n", host); | |
826 | break; | |
827 | } | |
df7d5679 RC |
828 | fflush(stdout); |
829 | (void) close(1); | |
830 | } | |
831 | (void) close(p[0]); | |
832 | (void) close(p[1]); | |
833 | wait(&stat); | |
834 | } | |
835 | ||
836 | /* | |
837 | * dofork - fork with retries on failure | |
838 | */ | |
54266d1f | 839 | static |
df7d5679 RC |
840 | dofork(action) |
841 | int action; | |
842 | { | |
843 | register int i, pid; | |
844 | ||
845 | for (i = 0; i < 20; i++) { | |
88f026f7 | 846 | if ((pid = fork()) < 0) { |
df7d5679 | 847 | sleep((unsigned)(i*i)); |
88f026f7 RC |
848 | continue; |
849 | } | |
850 | /* | |
851 | * Child should run as daemon instead of root | |
852 | */ | |
853 | if (pid == 0) | |
854 | setuid(DU); | |
855 | return(pid); | |
df7d5679 RC |
856 | } |
857 | log("can't fork"); | |
858 | ||
859 | switch (action) { | |
860 | case DORETURN: | |
861 | return (-1); | |
862 | default: | |
863 | log("bad action (%d) to dofork", action); | |
864 | /*FALL THRU*/ | |
865 | case DOABORT: | |
866 | exit(1); | |
867 | } | |
868 | /*NOTREACHED*/ | |
869 | } | |
870 | ||
871 | /* | |
872 | * Cleanup child processes when a SIGINT is caught. | |
873 | */ | |
54266d1f | 874 | static |
df7d5679 RC |
875 | onintr() |
876 | { | |
877 | kill(0, SIGINT); | |
878 | if (ofilter > 0) | |
879 | kill(ofilter, SIGCONT); | |
880 | while (wait(0) > 0) | |
881 | ; | |
882 | exit(0); | |
883 | } | |
884 | ||
54266d1f | 885 | static |
df7d5679 RC |
886 | init() |
887 | { | |
888 | int status; | |
889 | ||
c6d1c018 RC |
890 | if ((status = pgetent(line, printer)) < 0) |
891 | fatal("can't open printer description file"); | |
892 | else if (status == 0) | |
893 | fatal("unknown printer"); | |
df7d5679 RC |
894 | if ((LP = pgetstr("lp", &bp)) == NULL) |
895 | LP = DEFDEVLP; | |
896 | if ((RP = pgetstr("rp", &bp)) == NULL) | |
88f026f7 | 897 | RP = DEFLP; |
df7d5679 RC |
898 | if ((LO = pgetstr("lo", &bp)) == NULL) |
899 | LO = DEFLOCK; | |
900 | if ((ST = pgetstr("st", &bp)) == NULL) | |
901 | ST = DEFSTAT; | |
902 | if ((LF = pgetstr("lf", &bp)) == NULL) | |
903 | LF = DEFLOGF; | |
904 | if ((SD = pgetstr("sd", &bp)) == NULL) | |
905 | SD = DEFSPOOL; | |
906 | if ((DU = pgetnum("du")) < 0) | |
907 | DU = DEFUID; | |
908 | if ((FF = pgetstr("ff", &bp)) == NULL) | |
909 | FF = DEFFF; | |
910 | if ((PW = pgetnum("pw")) < 0) | |
911 | PW = DEFWIDTH; | |
912 | sprintf(&width[2], "%d", PW); | |
913 | if ((PL = pgetnum("pl")) < 0) | |
914 | PL = DEFLENGTH; | |
915 | sprintf(&length[2], "%d", PL); | |
88f026f7 RC |
916 | if ((PX = pgetnum("px")) < 0) |
917 | PX = 0; | |
918 | sprintf(&pxwidth[2], "%d", PX); | |
919 | if ((PY = pgetnum("py")) < 0) | |
920 | PY = 0; | |
921 | sprintf(&pxlength[2], "%d", PY); | |
df7d5679 RC |
922 | RM = pgetstr("rm", &bp); |
923 | AF = pgetstr("af", &bp); | |
924 | OF = pgetstr("of", &bp); | |
925 | IF = pgetstr("if", &bp); | |
88f026f7 | 926 | RF = pgetstr("rf", &bp); |
df7d5679 | 927 | TF = pgetstr("tf", &bp); |
a4f59913 | 928 | NF = pgetstr("nf", &bp); |
df7d5679 RC |
929 | DF = pgetstr("df", &bp); |
930 | GF = pgetstr("gf", &bp); | |
931 | VF = pgetstr("vf", &bp); | |
932 | CF = pgetstr("cf", &bp); | |
933 | TR = pgetstr("tr", &bp); | |
88f026f7 | 934 | RS = pgetflag("rs"); |
df7d5679 RC |
935 | SF = pgetflag("sf"); |
936 | SH = pgetflag("sh"); | |
937 | SB = pgetflag("sb"); | |
938 | RW = pgetflag("rw"); | |
939 | BR = pgetnum("br"); | |
940 | if ((FC = pgetnum("fc")) < 0) | |
941 | FC = 0; | |
942 | if ((FS = pgetnum("fs")) < 0) | |
943 | FS = 0; | |
944 | if ((XC = pgetnum("xc")) < 0) | |
945 | XC = 0; | |
946 | if ((XS = pgetnum("xs")) < 0) | |
947 | XS = 0; | |
6bd17dac | 948 | tof = !pgetflag("fo"); |
df7d5679 RC |
949 | } |
950 | ||
88f026f7 RC |
951 | /* |
952 | * Acquire line printer or remote connection. | |
953 | */ | |
54266d1f | 954 | static |
88f026f7 RC |
955 | openpr() |
956 | { | |
957 | register int i, n; | |
958 | ||
959 | if (*LP) { | |
960 | for (i = 1; ; i = i < 32 ? i << 1 : i) { | |
adec4d9e | 961 | pfd = open(LP, RW ? O_RDWR : O_WRONLY); |
88f026f7 RC |
962 | if (pfd >= 0) |
963 | break; | |
964 | if (errno == ENOENT) { | |
965 | log("cannot open %s", LP); | |
966 | exit(1); | |
967 | } | |
968 | if (i == 1) | |
969 | status("waiting for %s to become ready (offline ?)", printer); | |
970 | sleep(i); | |
971 | } | |
972 | if (isatty(pfd)) | |
973 | setty(); | |
974 | status("%s is ready and printing", printer); | |
975 | } else if (RM != NULL) { | |
976 | for (i = 1; ; i = i < 512 ? i << 1 : i) { | |
a87bde97 | 977 | pfd = getport(RM); |
88f026f7 RC |
978 | if (pfd >= 0) { |
979 | (void) sprintf(line, "\2%s\n", RP); | |
980 | n = strlen(line); | |
981 | if (write(pfd, line, n) != n) | |
982 | break; | |
983 | if (noresponse()) | |
984 | (void) close(pfd); | |
985 | else | |
986 | break; | |
987 | } | |
988 | if (i == 1) | |
989 | status("waiting for %s to come up", RM); | |
990 | sleep(i); | |
991 | } | |
992 | status("sending to %s", RM); | |
993 | remote = 1; | |
994 | } else { | |
995 | log("no line printer device or remote machine name"); | |
996 | exit(1); | |
997 | } | |
998 | /* | |
999 | * Start up an output filter, if needed. | |
1000 | */ | |
1001 | if (OF) { | |
1002 | int p[2]; | |
1003 | char *cp; | |
1004 | ||
1005 | pipe(p); | |
1006 | if ((ofilter = dofork(DOABORT)) == 0) { /* child */ | |
1007 | dup2(p[0], 0); /* pipe is std in */ | |
1008 | dup2(pfd, 1); /* printer is std out */ | |
1009 | for (i = 3; i < NOFILE; i++) | |
1010 | (void) close(i); | |
1011 | if ((cp = rindex(OF, '/')) == NULL) | |
1012 | cp = OF; | |
1013 | else | |
1014 | cp++; | |
1015 | execl(OF, cp, width, length, 0); | |
1016 | log("can't execl output filter %s", OF); | |
1017 | exit(1); | |
1018 | } | |
1019 | (void) close(p[0]); /* close input side */ | |
1020 | ofd = p[1]; /* use pipe for output */ | |
1021 | } else { | |
1022 | ofd = pfd; | |
1023 | ofilter = 0; | |
1024 | } | |
1025 | } | |
1026 | ||
df7d5679 RC |
1027 | struct bauds { |
1028 | int baud; | |
1029 | int speed; | |
1030 | } bauds[] = { | |
1031 | 50, B50, | |
1032 | 75, B75, | |
1033 | 110, B110, | |
1034 | 134, B134, | |
1035 | 150, B150, | |
1036 | 200, B200, | |
1037 | 300, B300, | |
1038 | 600, B600, | |
1039 | 1200, B1200, | |
1040 | 1800, B1800, | |
1041 | 2400, B2400, | |
1042 | 4800, B4800, | |
1043 | 9600, B9600, | |
1044 | 19200, EXTA, | |
1045 | 38400, EXTB, | |
1046 | 0, 0 | |
1047 | }; | |
1048 | ||
1049 | /* | |
1050 | * setup tty lines. | |
1051 | */ | |
54266d1f | 1052 | static |
df7d5679 RC |
1053 | setty() |
1054 | { | |
1055 | struct sgttyb ttybuf; | |
1056 | register struct bauds *bp; | |
1057 | ||
1058 | if (ioctl(pfd, TIOCEXCL, (char *)0) < 0) { | |
1059 | log("cannot set exclusive-use"); | |
1060 | exit(1); | |
1061 | } | |
1062 | if (ioctl(pfd, TIOCGETP, (char *)&ttybuf) < 0) { | |
1063 | log("cannot get tty parameters"); | |
1064 | exit(1); | |
1065 | } | |
1066 | if (BR > 0) { | |
1067 | for (bp = bauds; bp->baud; bp++) | |
1068 | if (BR == bp->baud) | |
1069 | break; | |
1070 | if (!bp->baud) { | |
1071 | log("illegal baud rate %d", BR); | |
1072 | exit(1); | |
1073 | } | |
1074 | ttybuf.sg_ispeed = ttybuf.sg_ospeed = bp->speed; | |
1075 | } | |
c6d1c018 RC |
1076 | ttybuf.sg_flags &= ~FC; |
1077 | ttybuf.sg_flags |= FS; | |
df7d5679 RC |
1078 | if (ioctl(pfd, TIOCSETP, (char *)&ttybuf) < 0) { |
1079 | log("cannot set tty parameters"); | |
1080 | exit(1); | |
1081 | } | |
1082 | if (XC) { | |
1083 | if (ioctl(pfd, TIOCLBIC, &XC) < 0) { | |
1084 | log("cannot set local tty parameters"); | |
1085 | exit(1); | |
1086 | } | |
1087 | } | |
1088 | if (XS) { | |
1089 | if (ioctl(pfd, TIOCLBIS, &XS) < 0) { | |
1090 | log("cannot set local tty parameters"); | |
1091 | exit(1); | |
1092 | } | |
1093 | } | |
1094 | } | |
88f026f7 RC |
1095 | |
1096 | /*VARARGS1*/ | |
1097 | static | |
1098 | status(msg, a1, a2, a3) | |
1099 | char *msg; | |
1100 | { | |
1101 | register int fd; | |
1102 | char buf[BUFSIZ]; | |
1103 | ||
1104 | umask(0); | |
adec4d9e SL |
1105 | fd = open(ST, O_WRONLY|O_CREAT, 0664); |
1106 | if (fd < 0 || flock(fd, LOCK_EX) < 0) | |
88f026f7 | 1107 | fatal("cannot create status file"); |
adec4d9e | 1108 | ftruncate(fd, 0); |
88f026f7 RC |
1109 | sprintf(buf, msg, a1, a2, a3); |
1110 | strcat(buf, "\n"); | |
1111 | (void) write(fd, buf, strlen(buf)); | |
1112 | (void) close(fd); | |
1113 | } |