1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30 #pragma ident "%Z%%M% %I% %E% SMI"
31
32 /*
33 *
34 * download - host resident font downloader
35 *
36 * Prepends host resident fonts to PostScript input files. The program assumes
37 * the input files are part of a single PostScript job and that requested fonts
38 * can be downloaded at the start of each input file. Downloaded fonts are the
39 * ones named in a %%DocumentFonts: comment and listed in a special map table.
40 * Map table pathnames (supplied using the -m option) that begin with a / are
41 * taken as is. Otherwise the final pathname is built using *hostfontdir (-H
42 * option), *mapname (-m option), and *suffix.
43 *
44 * The map table consists of fontname-filename pairs, separated by white space.
45 * Comments are introduced by % (as in PostScript) and extend to the end of the
46 * current line. The only fonts that can be downloaded are the ones listed in
47 * the active map table that point the program to a readable Unix file. A request
48 * for an unlisted font or inaccessible file is ignored. All font requests are
49 * ignored if the map table can't be read. In that case the program simply copies
50 * the input files to stdout.
51 *
52 * An example (but not one to follow) of what can be in a map table is,
53 *
54 * %
55 * % Map requests for Bookman-Light to file *hostfontdir/KR
56 * %
57 *
58 * Bookman-Light KR % Keeping everything (including the map
59 * % table) in *hostfontdir seems like the
60 * % cleanest approach.
61 *
62 * %
63 * % Map Palatino-Roman to file *hostfontdir/palatino/Roman
64 * %
65 * Palatino-Roman palatino/Roman
66 *
67 * % Map ZapfDingbats to file /usr/lib/host/dingbats
68 *
69 * ZapfDingbats /usr/lib/host/dingbats
70 *
71 * Once again, file names that begin with a / are taken as is. All others have
72 * *hostfontdir/ prepended to the file string associated with a particular font.
73 *
74 * Map table can be associated with a printer model (e.g. a LaserWriter), a
75 * printer destination, or whatever - the choice is up to an administrator.
76 * By destination may be best if your spooler is running several private
77 * printers. Host resident fonts are usually purchased under a license that
78 * restricts their use to a limited number of printers. A font licensed for
79 * a single printer should only be used on that printer.
80 *
81 * Was written quickly, so there's much room for improvement. Undoubtedly should
82 * be a more general program (e.g. scan for other comments).
83 *
84 */
85
86 #include <stdio.h>
87 #include <signal.h>
88 #include <fcntl.h>
89 #include <sys/types.h>
90 #include <sys/stat.h>
91
92 #include "comments.h" /* PostScript file structuring comments */
93 #include "gen.h" /* general purpose definitions */
94 #include "path.h" /* for temporary directory */
95 #include "ext.h" /* external variable declarations */
96 #include "download.h" /* a few special definitions */
97
98 char *temp_dir = TEMPDIR; /* temp directory - for copying stdin */
99 char *hostfontdir = HOSTFONTDIR; /* host resident directory */
100 char *mapname = "map"; /* map table - usually in *hostfontdir */
101 char *suffix = ""; /* appended to the map table pathname */
102 Map *map = NULL; /* device font map table */
103 char *stringspace = NULL; /* for storing font and file strings */
104 int next = 0; /* next free slot in map[] */
105
106 char *residentfonts = NULL; /* list of printer resident fonts */
107 char *printer = NULL; /* printer name - only for Unix 4.0 lp */
108
109 char buf[2048]; /* input file line buffer */
110 char *comment = DOCUMENTFONTS; /* look for this comment */
111 int atend = FALSE; /* TRUE only if a comment says so */
112
113 FILE *fp_in = stdin; /* next input file */
114 FILE *fp_temp = NULL; /* for copying stdin */
115
116 static Map *allocate(Map *, int);
117 static void arguments(void);
118 static void copyfonts(char *);
119 static void copyinput(void);
120 static void done(void);
121 static void download(void);
122 static void init_signals(void);
123 static int lookup(char *);
124 static void options(void);
125 static void readmap(void);
126 static void readresident(void);
127
128 /*****************************************************************************/
129
130 int
main(int agc,char * agv[])131 main(int agc, char *agv[])
132 {
133
134 /*
135 *
136 * Host resident font download. The input files are assumed to be part of a
137 * single PostScript job.
138 *
139 */
140
141 argc = agc; /* other routines may want them */
142 argv = agv;
143
144 prog_name = argv[0]; /* just for error messages */
145
146 init_signals(); /* sets up interrupt handling */
147 options(); /* first get command line options */
148 readmap(); /* read the font map table */
149 readresident(); /* and the optional resident font list */
150 arguments(); /* then process non-option arguments */
151 done(); /* and clean things up */
152
153 return (x_stat); /* not much could be wrong */
154
155 } /* End of main */
156
157 /*****************************************************************************/
158
159 static void
init_signals(void)160 init_signals(void)
161 {
162 void interrupt(); /* handles signals if we catching them */
163
164 /*
165 *
166 * Makes sure we handle interrupts properly.
167 *
168 */
169
170 if ( signal(SIGINT, interrupt) == SIG_IGN ) {
171 signal(SIGINT, SIG_IGN);
172 signal(SIGQUIT, SIG_IGN);
173 signal(SIGHUP, SIG_IGN);
174 } else {
175 signal(SIGHUP, interrupt);
176 signal(SIGQUIT, interrupt);
177 } /* End else */
178
179 signal(SIGTERM, interrupt);
180
181 } /* End of init_signals */
182
183 /*****************************************************************************/
184
185 static void
options(void)186 options(void)
187 {
188
189 int ch; /* return value from getopt() */
190 char *optnames = "c:fm:p:r:H:T:DI";
191
192 extern char *optarg; /* used by getopt() */
193 extern int optind;
194
195 /*
196 *
197 * Reads and processes the command line options.
198 *
199 */
200
201 while ( (ch = getopt(argc, argv, optnames)) != EOF ) {
202
203 switch ( ch ) {
204
205 case 'c': /* look for this comment */
206 comment = optarg;
207 break;
208
209 case 'f': /* force a complete input file scan */
210 atend = TRUE;
211 break;
212
213 case 'm': /* printer map table name */
214 mapname = optarg;
215 break;
216
217 case 'p': /* printer name - for Unix 4.0 lp */
218 printer = optarg;
219 break;
220
221 case 'r': /* resident font list */
222 residentfonts = optarg;
223 break;
224
225 case 'H': /* host resident font directory */
226 hostfontdir = optarg;
227 break;
228
229 case 'T': /* temporary file directory */
230 temp_dir = optarg;
231 break;
232
233 case 'D': /* debug flag */
234 debug = ON;
235 break;
236
237 case 'I': /* ignore FATAL errors */
238 ignore = ON;
239 break;
240
241 case '?': /* don't understand the option */
242 error(FATAL, "");
243 break;
244
245 default: /* don't know what to do for ch */
246 error(FATAL, "missing case for option %c\n", ch);
247 break;
248
249 } /* End switch */
250
251 } /* End while */
252
253 argc -= optind; /* get ready for non-option args */
254 argv += optind;
255
256 } /* End of options */
257
258 /*****************************************************************************/
259
260 static void
readmap(void)261 readmap(void)
262 {
263 char *path;
264 char *ptr;
265 int fd;
266 struct stat sbuf;
267
268 /*
269 *
270 * Initializes the map table by reading an ASCII mapping file. If mapname begins
271 * with a / it's the map table. Otherwise hostfontdir, mapname, and suffix are
272 * combined to build the final pathname. If we can open the file we read it all
273 * into memory, erase comments, and separate the font and file name pairs. When
274 * we leave next points to the next free slot in the map[] array. If it's zero
275 * nothing was in the file or we couldn't open it.
276 *
277 */
278
279 if ( hostfontdir == NULL || mapname == NULL )
280 return;
281
282 if ( *mapname != '/' ) {
283 if ( (path = malloc(strlen(hostfontdir) + strlen(mapname) +
284 strlen(suffix) + 2)) == NULL )
285 error(FATAL, "no memory");
286 sprintf(path, "%s/%s%s", hostfontdir, mapname, suffix);
287 } else path = mapname;
288
289 if ( (fd = open(path, 0)) != -1 ) {
290 if ( fstat(fd, &sbuf) == -1 )
291 error(FATAL, "can't fstat %s", path);
292 if ( (stringspace = malloc(sbuf.st_size + 2)) == NULL )
293 error(FATAL, "no memory");
294 if ( read(fd, stringspace, sbuf.st_size) == -1 )
295 error(FATAL, "can't read %s", path);
296 close(fd);
297
298 stringspace[sbuf.st_size] = '\n'; /* just to be safe */
299 stringspace[sbuf.st_size+1] = '\0';
300 for ( ptr = stringspace; *ptr != '\0'; ptr++ ) /* erase comments */
301 if ( *ptr == '%' )
302 for ( ; *ptr != '\n' ; ptr++ )
303 *ptr = ' ';
304
305 for ( ptr = stringspace; ; next++ ) {
306 if ( (next % 50) == 0 )
307 map = allocate(map, next+50);
308 map[next].downloaded = FALSE;
309 map[next].font = strtok(ptr, " \t\n");
310 map[next].file = strtok(ptr = NULL, " \t\n");
311 if ( map[next].font == NULL )
312 break;
313 if ( map[next].file == NULL )
314 error(FATAL, "map table format error - check %s", path);
315 } /* End for */
316 } /* End if */
317
318 } /* End of readmap */
319
320 /*****************************************************************************/
321
322 static void
readresident(void)323 readresident(void)
324 {
325 FILE *fp;
326 char *path;
327 int ch;
328 int n;
329
330 /*
331 *
332 * Reads a file that lists the resident fonts for a particular printer and marks
333 * each font as already downloaded. Nothing's done if the file can't be read or
334 * there's no mapping file. Comments, as in the map file, begin with a % and
335 * extend to the end of the line. Added for Unix 4.0 lp.
336 *
337 */
338
339 if ( next == 0 || (printer == NULL && residentfonts == NULL) )
340 return;
341
342 if ( printer != NULL ) { /* use Unix 4.0 lp pathnames */
343 sprintf(buf, "/etc/lp/printers/%s/residentfonts", printer);
344 path = buf;
345 } else path = residentfonts;
346
347 if ( (fp = fopen(path, "r")) != NULL ) {
348 while ( fscanf(fp, "%s", buf) != EOF )
349 if ( buf[0] == '%' )
350 while ( (ch = getc(fp)) != EOF && ch != '\n' ) ;
351 else if ( (n = lookup(buf)) < next )
352 map[n].downloaded = TRUE;
353 fclose(fp);
354 } /* End if */
355
356 } /* End of readresident */
357
358 /*****************************************************************************/
359
360 static void
arguments(void)361 arguments(void)
362 {
363
364 /*
365 *
366 * Makes sure all the non-option command line arguments are processed. If we get
367 * here and there aren't any arguments left, or if '-' is one of the input files
368 * we'll translate stdin. Assumes input files are part of a single PostScript
369 * job and fonts can be downloaded at the start of each file.
370 *
371 */
372
373 if ( argc < 1 )
374 download();
375 else {
376 while ( argc > 0 ) {
377 fp_temp = NULL;
378 if ( strcmp(*argv, "-") == 0 )
379 fp_in = stdin;
380 else if ( (fp_in = fopen(*argv, "r")) == NULL )
381 error(FATAL, "can't open %s", *argv);
382 download();
383 if ( fp_in != stdin )
384 fclose(fp_in);
385 if ( fp_temp != NULL )
386 fclose(fp_temp);
387 argc--;
388 argv++;
389 } /* End while */
390 } /* End else */
391
392 } /* End of arguments */
393
394 /*****************************************************************************/
395
396 static void
done(void)397 done(void)
398 {
399
400 /*
401 *
402 * Clean things up before we quit.
403 *
404 */
405
406 if ( temp_file != NULL )
407 unlink(temp_file);
408
409 } /* End of done */
410
411 /*****************************************************************************/
412
413 static void
download(void)414 download(void)
415 {
416 int infontlist = FALSE;
417
418 /*
419 *
420 * If next is zero the map table is empty and all we do is copy the input file
421 * to stdout. Otherwise we read the input file looking for %%DocumentFonts: or
422 * continuation comments, add any accessible fonts to the output file, and then
423 * append the input file. When reading stdin we append lines to fp_temp and
424 * recover them when we're ready to copy the input file. fp_temp will often
425 * only contain part of stdin - if there's no %%DocumentFonts: (atend) comment
426 * we stop reading fp_in after the header.
427 *
428 */
429
430 if ( next > 0 ) {
431 if ( fp_in == stdin ) {
432 if ( (temp_file = tempnam(temp_dir, "post")) == NULL )
433 error(FATAL, "can't generate temp file name");
434 if ( (fp_temp = fopen(temp_file, "w+")) == NULL )
435 error(FATAL, "can't open %s", temp_file);
436 unlink(temp_file);
437 temp_file = NULL;
438 } /* End if */
439
440 while ( fgets(buf, sizeof(buf), fp_in) != NULL ) {
441 if ( fp_temp != NULL )
442 fprintf(fp_temp, "%s", buf);
443 if ( buf[0] != '%' || buf[1] != '%' ) {
444 if ( (buf[0] != '%' || buf[1] != '!') && atend == FALSE )
445 break;
446 infontlist = FALSE;
447 } else if ( strncmp(buf, comment, strlen(comment)) == 0 ) {
448 copyfonts(buf);
449 infontlist = TRUE;
450 } else if ( buf[2] == '+' && infontlist == TRUE )
451 copyfonts(buf);
452 else infontlist = FALSE;
453 } /* End while */
454 } /* End if */
455
456 copyinput();
457
458 } /* End of download */
459
460 /*****************************************************************************/
461
462 static void
copyfonts(char * list)463 copyfonts(char *list)
464 {
465 char *font;
466 char *path;
467 int n;
468
469 /*
470 *
471 * list points to a %%DocumentFonts: or continuation comment. What follows the
472 * the keyword will be a list of fonts separated by white space (or (atend)).
473 * Look for each font in the map table and if it's found copy the font file to
474 * stdout (once only).
475 *
476 */
477
478 strtok(list, " \n"); /* skip to the font list */
479
480 while ( (font = strtok(NULL, " \t\n")) != NULL ) {
481 if ( strcmp(font, ATEND) == 0 ) {
482 atend = TRUE;
483 break;
484 } /* End if */
485 if ( (n = lookup(font)) < next ) {
486 if ( *map[n].file != '/' ) {
487 if ( (path = malloc(strlen(hostfontdir)+strlen(map[n].file)+2)) == NULL )
488 error(FATAL, "no memory");
489 sprintf(path, "%s/%s", hostfontdir, map[n].file);
490 cat(path);
491 free(path);
492 } else cat(map[n].file);
493 map[n].downloaded = TRUE;
494 } /* End if */
495 } /* End while */
496
497 } /* End of copyfonts */
498
499 /*****************************************************************************/
500
501 static void
copyinput(void)502 copyinput(void)
503 {
504
505 /*
506 *
507 * Copies the input file to stdout. If fp_temp isn't NULL seek to the start and
508 * add it to the output file - it's a partial (or complete) copy of stdin made
509 * by download(). Then copy fp_in, but only seek to the start if it's not stdin.
510 *
511 */
512
513 if ( fp_temp != NULL ) {
514 fseek(fp_temp, 0L, 0);
515 while ( fgets(buf, sizeof(buf), fp_temp) != NULL )
516 printf("%s", buf);
517 } /* End if */
518
519 if ( fp_in != stdin )
520 fseek(fp_in, 0L, 0);
521
522 while ( fgets(buf, sizeof(buf), fp_in) != NULL )
523 printf("%s", buf);
524
525 } /* End of copyinput */
526
527 /*****************************************************************************/
528
529 static int
lookup(char * font)530 lookup(char *font)
531 {
532 int i;
533
534 /*
535 *
536 * Looks for *font in the map table. Return the map table index if found and
537 * not yet downloaded - otherwise return next.
538 *
539 */
540
541 for ( i = 0; i < next; i++ )
542 if ( strcmp(font, map[i].font) == 0 ) {
543 if ( map[i].downloaded == TRUE )
544 i = next;
545 break;
546 } /* End if */
547
548 return(i);
549
550 } /* End of lookup */
551
552 /*****************************************************************************/
553
554 static Map *
allocate(Map * ptr,int num)555 allocate(Map *ptr, int num)
556 {
557
558 /*
559 *
560 * Allocates space for num Map elements. Calls malloc() if ptr is NULL and
561 * realloc() otherwise.
562 *
563 */
564
565 if ( ptr == NULL )
566 ptr = (Map *)malloc(num * sizeof(Map));
567 else ptr = (Map *)realloc(ptr, num * sizeof(Map));
568
569 if ( ptr == NULL )
570 error(FATAL, "no map memory");
571
572 return(ptr);
573
574 } /* End of allocate */
575