2 * "$Id: pdftops.c 9793 2011-05-20 03:49:49Z mike $"
4 * PDF to PostScript filter front-end for CUPS.
6 * Copyright 2007-2011 by Apple Inc.
7 * Copyright 1997-2006 by Easy Software Products.
9 * These coded instructions, statements, and computer programs are the
10 * property of Apple Inc. and are protected by Federal copyright
11 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
12 * which should have been included with this file. If this file is
13 * file is missing or damaged, see the license at "http://www.cups.org/".
17 * main() - Main entry for filter...
18 * cancel_job() - Flag the job as canceled.
22 * Include necessary headers...
25 #include <cups/cups.h>
27 #include <cups/string-private.h>
28 #include <cups/language-private.h>
38 static void cancel_job(int sig);
45 static int job_canceled = 0;
49 * 'main()' - Main entry for filter...
52 int /* O - Exit status */
53 main(int argc, /* I - Number of command-line args */
54 char *argv[]) /* I - Command-line arguments */
56 int fd; /* Copy file descriptor */
57 char *filename, /* PDF file to convert */
58 tempfile[1024]; /* Temporary file */
59 char buffer[8192]; /* Copy buffer */
60 int bytes; /* Bytes copied */
61 int num_options; /* Number of options */
62 cups_option_t *options; /* Options */
63 const char *val; /* Option value */
64 int orientation, /* Output orientation */
65 fit; /* Fit output to default page size? */
66 ppd_file_t *ppd; /* PPD file */
67 ppd_size_t *size; /* Current page size */
68 int pdf_pid, /* Process ID for pdftops */
69 pdf_argc, /* Number of args for pdftops */
70 pstops_pid, /* Process ID of pstops filter */
71 pstops_pipe[2], /* Pipe to pstops filter */
72 wait_children, /* Number of child processes left */
73 wait_pid, /* Process ID from wait() */
74 wait_status, /* Status from child */
75 exit_status = 0; /* Exit status */
76 char *pdf_argv[100], /* Arguments for pdftops/gs */
77 pdf_width[255], /* Paper width */
78 pdf_height[255], /* Paper height */
79 pstops_path[1024], /* Path to pstops program */
80 *pstops_argv[7], /* Arguments for pstops filter */
81 *pstops_options, /* Options for pstops filter */
82 *pstops_start, /* Start of pstops filter option */
83 *pstops_end; /* End of pstops filter option */
84 const char *cups_serverbin; /* CUPS_SERVERBIN environment variable */
85 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
86 struct sigaction action; /* Actions for POSIX signals */
87 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
91 * Make sure status messages are not buffered...
97 * Ignore broken pipe signals...
100 signal(SIGPIPE, SIG_IGN);
103 * Make sure we have the right number of arguments for CUPS!
106 if (argc < 6 || argc > 7)
108 _cupsLangPrintf(stderr,
109 _("Usage: %s job user title copies options [filename]"),
115 * Register a signal handler to cleanly cancel a job.
118 #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
119 sigset(SIGTERM, cancel_job);
120 #elif defined(HAVE_SIGACTION)
121 memset(&action, 0, sizeof(action));
123 sigemptyset(&action.sa_mask);
124 action.sa_handler = cancel_job;
125 sigaction(SIGTERM, &action, NULL);
127 signal(SIGTERM, cancel_job);
128 #endif /* HAVE_SIGSET */
131 * Copy stdin if needed...
137 * Copy stdin to a temp file...
140 if ((fd = cupsTempFd(tempfile, sizeof(tempfile))) < 0)
142 perror("DEBUG: Unable to copy PDF file");
146 fprintf(stderr, "DEBUG: pdftops - copying to temp print file \"%s\"\n",
149 while ((bytes = fread(buffer, 1, sizeof(buffer), stdin)) > 0)
150 write(fd, buffer, bytes);
159 * Use the filename on the command-line...
167 * Load the PPD file and mark options...
170 ppd = ppdOpenFile(getenv("PPD"));
171 num_options = cupsParseOptions(argv[5], 0, &options);
173 ppdMarkDefaults(ppd);
174 cupsMarkOptions(ppd, num_options, options);
177 * Build the pstops command-line...
180 if ((cups_serverbin = getenv("CUPS_SERVERBIN")) == NULL)
181 cups_serverbin = CUPS_SERVERBIN;
183 snprintf(pstops_path, sizeof(pstops_path), "%s/filter/pstops",
186 pstops_options = strdup(argv[5]);
188 if ((pstops_start = strstr(pstops_options, "fitplot")) != NULL &&
189 (!pstops_start[7] || isspace(pstops_start[7] & 255)))
192 * Strip [no]fitplot option...
195 pstops_end = pstops_start + 7;
197 if ((pstops_start - pstops_options) >= 2 &&
198 !strncmp(pstops_start - 2, "no", 2))
201 while (*pstops_end && isspace(*pstops_end & 255))
204 _cups_strcpy(pstops_start, pstops_end);
207 if ((pstops_start = strstr(pstops_options, "fit-to-page")) != NULL &&
208 (!pstops_start[11] || isspace(pstops_start[11] & 255)))
211 * Strip [no]fit-to-page option...
214 pstops_end = pstops_start + 11;
216 if ((pstops_start - pstops_options) >= 2 &&
217 !strncmp(pstops_start - 2, "no", 2))
220 while (*pstops_end && isspace(*pstops_end & 255))
223 _cups_strcpy(pstops_start, pstops_end);
226 if ((pstops_start = strstr(pstops_options, "landscape")) != NULL &&
227 (!pstops_start[9] || isspace(pstops_start[9] & 255)))
230 * Strip [no]landscape option...
233 pstops_end = pstops_start + 9;
235 if ((pstops_start - pstops_options) >= 2 &&
236 !strncmp(pstops_start - 2, "no", 2))
239 while (*pstops_end && isspace(*pstops_end & 255))
242 _cups_strcpy(pstops_start, pstops_end);
245 if ((pstops_start = strstr(pstops_options, "orientation-requested=")) != NULL)
248 * Strip [no]fitplot option...
251 pstops_end = pstops_start + 22;
252 while (*pstops_end && !isspace(*pstops_end & 255))
255 _cups_strcpy(pstops_start, pstops_end);
258 pstops_argv[0] = argv[0]; /* Printer */
259 pstops_argv[1] = argv[1]; /* Job */
260 pstops_argv[2] = argv[2]; /* User */
261 pstops_argv[3] = argv[3]; /* Title */
262 pstops_argv[4] = argv[4]; /* Copies */
263 pstops_argv[5] = pstops_options; /* Options */
264 pstops_argv[6] = NULL;
267 * Build the command-line for the pdftops or gs filter...
271 pdf_argv[0] = (char *)"pdftops";
274 pdf_argv[0] = (char *)"gs";
275 pdf_argv[1] = (char *)"-q";
276 pdf_argv[2] = (char *)"-dNOPAUSE";
277 pdf_argv[3] = (char *)"-dBATCH";
278 pdf_argv[4] = (char *)"-dSAFER";
279 # ifdef HAVE_GHOSTSCRIPT_PS2WRITE
280 pdf_argv[5] = (char *)"-sDEVICE=ps2write";
282 pdf_argv[5] = (char *)"-sDEVICE=pswrite";
283 # endif /* HAVE_GHOSTSCRIPT_PS2WRITE */
284 pdf_argv[6] = (char *)"-sOUTPUTFILE=%stdout";
286 #endif /* HAVE_PDFTOPS */
291 * Set language level and TrueType font handling...
294 if (ppd->language_level == 1)
297 pdf_argv[pdf_argc++] = (char *)"-level1";
298 pdf_argv[pdf_argc++] = (char *)"-noembtt";
300 pdf_argv[pdf_argc++] = (char *)"-dLanguageLevel=1";
301 #endif /* HAVE_PDFTOPS */
303 else if (ppd->language_level == 2)
306 pdf_argv[pdf_argc++] = (char *)"-level2";
307 if (!ppd->ttrasterizer)
308 pdf_argv[pdf_argc++] = (char *)"-noembtt";
310 pdf_argv[pdf_argc++] = (char *)"-dLanguageLevel=2";
311 #endif /* HAVE_PDFTOPS */
315 pdf_argv[pdf_argc++] = (char *)"-level3";
317 pdf_argv[pdf_argc++] = (char *)"-dLanguageLevel=3";
318 #endif /* HAVE_PDFTOPS */
320 if ((val = cupsGetOption("fitplot", num_options, options)) == NULL)
321 val = cupsGetOption("fit-to-page", num_options, options);
323 if (val && _cups_strcasecmp(val, "no") && _cups_strcasecmp(val, "off") &&
324 _cups_strcasecmp(val, "false"))
330 * Set output page size...
333 size = ppdPageSize(ppd, NULL);
337 * Got the size, now get the orientation...
342 if ((val = cupsGetOption("landscape", num_options, options)) != NULL)
344 if (_cups_strcasecmp(val, "no") != 0 && _cups_strcasecmp(val, "off") != 0 &&
345 _cups_strcasecmp(val, "false") != 0)
348 else if ((val = cupsGetOption("orientation-requested", num_options,
352 * Map IPP orientation values to 0 to 3:
356 * 5 = -90 degrees = 3
357 * 6 = 180 degrees = 2
360 orientation = atoi(val) - 3;
361 if (orientation >= 2)
368 snprintf(pdf_width, sizeof(pdf_width), "%.0f", size->length);
369 snprintf(pdf_height, sizeof(pdf_height), "%.0f", size->width);
373 snprintf(pdf_width, sizeof(pdf_width), "%.0f", size->width);
374 snprintf(pdf_height, sizeof(pdf_height), "%.0f", size->length);
377 pdf_argv[pdf_argc++] = (char *)"-paperw";
378 pdf_argv[pdf_argc++] = pdf_width;
379 pdf_argv[pdf_argc++] = (char *)"-paperh";
380 pdf_argv[pdf_argc++] = pdf_height;
381 pdf_argv[pdf_argc++] = (char *)"-expand";
386 snprintf(pdf_width, sizeof(pdf_width), "-dDEVICEWIDTHPOINTS=%.0f",
388 snprintf(pdf_height, sizeof(pdf_height), "-dDEVICEHEIGHTPOINTS=%.0f",
393 snprintf(pdf_width, sizeof(pdf_width), "-dDEVICEWIDTHPOINTS=%.0f",
395 snprintf(pdf_height, sizeof(pdf_height), "-dDEVICEHEIGHTPOINTS=%.0f",
399 pdf_argv[pdf_argc++] = pdf_width;
400 pdf_argv[pdf_argc++] = pdf_height;
401 #endif /* HAVE_PDFTOPS */
403 #if defined(HAVE_PDFTOPS) && defined(HAVE_PDFTOPS_WITH_ORIGPAGESIZES)
407 * Use the page sizes of the original PDF document, this way documents
408 * which contain pages of different sizes can be printed correctly
411 pdf_argv[pdf_argc++] = (char *)"-origpagesizes";
413 #endif /* HAVE_PDFTOPS && HAVE_PDFTOPS_WITH_ORIGPAGESIZES */
417 pdf_argv[pdf_argc++] = filename;
418 pdf_argv[pdf_argc++] = (char *)"-";
420 pdf_argv[pdf_argc++] = (char *)"-c";
421 pdf_argv[pdf_argc++] = (char *)"save pop";
422 pdf_argv[pdf_argc++] = (char *)"-f";
423 pdf_argv[pdf_argc++] = filename;
424 #endif /* HAVE_PDFTOPS */
426 pdf_argv[pdf_argc] = NULL;
429 * Execute "pdftops/gs | pstops"...
432 if (pipe(pstops_pipe))
434 perror("DEBUG: Unable to create pipe");
440 if ((pdf_pid = fork()) == 0)
443 * Child comes here...
446 dup2(pstops_pipe[1], 1);
447 close(pstops_pipe[0]);
448 close(pstops_pipe[1]);
451 execv(CUPS_PDFTOPS, pdf_argv);
452 perror("DEBUG: Unable to execute pdftops program");
454 execv(CUPS_GHOSTSCRIPT, pdf_argv);
455 perror("DEBUG: Unable to execute gs program");
456 #endif /* HAVE_PDFTOPS */
460 else if (pdf_pid < 0)
467 perror("DEBUG: Unable to execute pdftops program");
469 perror("DEBUG: Unable to execute gs program");
470 #endif /* HAVE_PDFTOPS */
476 fprintf(stderr, "DEBUG: Started filter %s (PID %d)\n", pdf_argv[0], pdf_pid);
478 if ((pstops_pid = fork()) == 0)
481 * Child comes here...
484 dup2(pstops_pipe[0], 0);
485 close(pstops_pipe[0]);
486 close(pstops_pipe[1]);
488 execv(pstops_path, pstops_argv);
489 perror("DEBUG: Unable to execute pstops program");
493 else if (pstops_pid < 0)
499 perror("DEBUG: Unable to execute pstops program");
505 fprintf(stderr, "DEBUG: Started filter pstops (PID %d)\n", pstops_pid);
507 close(pstops_pipe[0]);
508 close(pstops_pipe[1]);
511 * Wait for the child processes to exit...
516 while (wait_children > 0)
519 * Wait until we get a valid process ID or the job is canceled...
522 while ((wait_pid = wait(&wait_status)) < 0 && errno == EINTR)
526 kill(pdf_pid, SIGTERM);
527 kill(pstops_pid, SIGTERM);
539 * Report child status...
544 if (WIFEXITED(wait_status))
546 exit_status = WEXITSTATUS(wait_status);
548 fprintf(stderr, "DEBUG: PID %d (%s) stopped with status %d!\n",
551 wait_pid == pdf_pid ? "pdftops" : "pstops",
553 wait_pid == pdf_pid ? "gs" : "pstops",
554 #endif /* HAVE_PDFTOPS */
557 else if (WTERMSIG(wait_status) == SIGTERM)
560 "DEBUG: PID %d (%s) was terminated normally with signal %d!\n",
563 wait_pid == pdf_pid ? "pdftops" : "pstops",
565 wait_pid == pdf_pid ? "gs" : "pstops",
566 #endif /* HAVE_PDFTOPS */
571 exit_status = WTERMSIG(wait_status);
573 fprintf(stderr, "DEBUG: PID %d (%s) crashed on signal %d!\n", wait_pid,
575 wait_pid == pdf_pid ? "pdftops" : "pstops",
577 wait_pid == pdf_pid ? "gs" : "pstops",
578 #endif /* HAVE_PDFTOPS */
584 fprintf(stderr, "DEBUG: PID %d (%s) exited with no errors.\n", wait_pid,
586 wait_pid == pdf_pid ? "pdftops" : "pstops");
588 wait_pid == pdf_pid ? "gs" : "pstops");
589 #endif /* HAVE_PDFTOPS */
594 * Cleanup and exit...
602 return (exit_status);
607 * 'cancel_job()' - Flag the job as canceled.
611 cancel_job(int sig) /* I - Signal number (unused) */
620 * End of "$Id: pdftops.c 9793 2011-05-20 03:49:49Z mike $".