--- /dev/null
+/*
+ * "$Id$"
+ *
+ * PostScript command filter for CUPS.
+ *
+ * Copyright 2008 by Apple Inc.
+ *
+ * These coded instructions, statements, and computer programs are the
+ * property of Apple Inc. and are protected by Federal copyright
+ * law. Distribution and use rights are outlined in the file "LICENSE.txt"
+ * which should have been included with this file. If this file is
+ * file is missing or damaged, see the license at "http://www.cups.org/".
+ *
+ *
+ * Contents:
+ *
+ */
+
+/*
+ * Include necessary headers...
+ */
+
+#include <cups/cups.h>
+#include <cups/string.h>
+#include <cups/sidechannel.h>
+
+
+/*
+ * Local functions...
+ */
+
+static void auto_configure(ppd_file_t *ppd, const char *user);
+static void print_self_test_page(ppd_file_t *ppd, const char *user);
+static void report_levels(ppd_file_t *ppd, const char *user);
+
+
+/*
+ * 'main()' - Process a CUPS command file.
+ */
+
+int /* O - Exit status */
+main(int argc, /* I - Number of command-line arguments */
+ char *argv[]) /* I - Command-line arguments */
+{
+ cups_file_t *fp; /* Command file */
+ char line[1024], /* Line from file */
+ *value; /* Value on line */
+ int linenum; /* Line number in file */
+ ppd_file_t *ppd; /* PPD file */
+
+
+ /*
+ * Check for valid arguments...
+ */
+
+ if (argc < 6 || argc > 7)
+ {
+ /*
+ * We don't have the correct number of arguments; write an error message
+ * and return.
+ */
+
+ fputs("ERROR: commandtops job-id user title copies options [file]\n", stderr);
+ return (1);
+ }
+
+ /*
+ * Open the PPD file...
+ */
+
+ if ((ppd = ppdOpenFile(getenv("PPD"))) == NULL)
+ {
+ fputs("ERROR: Unable to open PPD file!\n", stderr);
+ return (1);
+ }
+
+ /*
+ * Open the command file as needed...
+ */
+
+ if (argc == 7)
+ {
+ if ((fp = cupsFileOpen(argv[6], "r")) == NULL)
+ {
+ perror("ERROR: Unable to open command file - ");
+ return (1);
+ }
+ }
+ else
+ fp = cupsFileStdin();
+
+ /*
+ * Read the commands from the file and send the appropriate commands...
+ */
+
+ linenum = 0;
+
+ while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum))
+ {
+ /*
+ * Parse the command...
+ */
+
+ if (!strcasecmp(line, "AutoConfigure"))
+ auto_configure(ppd, argv[2]);
+ else if (!strcasecmp(line, "PrintSelfTestPage"))
+ print_self_test_page(ppd, argv[2]);
+ else if (!strcasecmp(line, "ReportLevels"))
+ report_levels(ppd, argv[2]);
+ else
+ fprintf(stderr, "ERROR: Invalid printer command \"%s\"!\n", line);
+ }
+
+ return (0);
+}
+
+
+/*
+ * 'auto_configure()' - Automatically configure the printer using PostScript
+ * query commands and/or SNMP lookups.
+ */
+
+static void
+auto_configure(ppd_file_t *ppd, /* I - PPD file */
+ const char *user) /* I - Printing user */
+{
+ ppd_option_t *option; /* Current option in PPD */
+ ppd_attr_t *attr; /* Query command attribute */
+ char buffer[1024], /* String buffer */
+ *bufptr; /* Pointer into buffer */
+ ssize_t bytes; /* Number of bytes read */
+ int datalen; /* Side-channel data length */
+
+
+ /*
+ * See if the backend supports bidirectional I/O...
+ */
+
+ datalen = 1;
+ if (cupsSideChannelDoRequest(CUPS_SC_CMD_GET_BIDI, buffer, &datalen,
+ 30.0) != CUPS_SC_STATUS_OK ||
+ buffer[0] != CUPS_SC_BIDI_SUPPORTED)
+ {
+ fputs("DEBUG: Unable to auto-configure PostScript Printer - no "
+ "bidirectional I/O available!\n", stderr);
+ return;
+ }
+
+ /*
+ * Put the printer in PostScript mode...
+ */
+
+ if (ppd->jcl_begin)
+ {
+ fputs(ppd->jcl_begin, stdout);
+ fputs(ppd->jcl_ps, stdout);
+ }
+
+ puts("%!");
+ fflush(stdout);
+
+ /*
+ * Then loop through every option in the PPD file and ask for the current
+ * value...
+ */
+
+ fputs("DEBUG: Auto-configuring PostScript printer...\n", stderr);
+
+ for (option = ppdFirstOption(ppd); option; option = ppdNextOption(ppd))
+ {
+ /*
+ * See if we have a query command for this option...
+ */
+
+ snprintf(buffer, sizeof(buffer), "?%s", option->keyword);
+
+ if ((attr = ppdFindAttr(ppd, buffer, NULL)) == NULL || !attr->value)
+ {
+ fprintf(stderr, "DEBUG: Skipping %s option...\n", option->keyword);
+ continue;
+ }
+
+ /*
+ * Send the query code to the printer...
+ */
+
+ fprintf(stderr, "DEBUG: Querying %s...\n", option->keyword);
+ fputs(attr->value, stdout);
+ fflush(stdout);
+
+ datalen = 0;
+ cupsSideChannelDoRequest(CUPS_SC_CMD_DRAIN_OUTPUT, buffer, &datalen, 5.0);
+
+ /*
+ * Read the response data...
+ */
+
+ while ((bytes = cupsBackChannelRead(buffer, sizeof(buffer) - 1, 5.0)) > 0)
+ {
+ /*
+ * Trim whitespace from both ends...
+ */
+
+ buffer[bytes] = '\0';
+
+ for (bufptr = buffer + bytes - 1; bufptr >= buffer; bufptr --)
+ if (isspace(*bufptr & 255))
+ *bufptr = '\0';
+ else
+ break;
+
+ for (bufptr = buffer; isspace(*bufptr & 255); bufptr ++);
+
+ /*
+ * Skip blank lines...
+ */
+
+ if (!*bufptr)
+ continue;
+
+ /*
+ * Write out the result and move on to the next option...
+ */
+
+ fprintf(stderr, "DEBUG: Default%s=%s\n", option->keyword, bufptr);
+ fprintf(stderr, "PPD: Default%s=%s\n", option->keyword, bufptr);
+ break;
+ }
+ }
+
+ /*
+ * Finish the job...
+ */
+
+ if (ppd->jcl_begin)
+ fputs(ppd->jcl_begin, stdout);
+ else
+ putchar(0x04);
+
+ fflush(stdout);
+}
+
+
+/*
+ * 'print_self_test_page()' - Print a self-test page.
+ */
+
+static void
+print_self_test_page(ppd_file_t *ppd, /* I - PPD file */
+ const char *user) /* I - Printing user */
+{
+ /*
+ * Put the printer in PostScript mode...
+ */
+
+ if (ppd->jcl_begin)
+ {
+ fputs(ppd->jcl_begin, stdout);
+ fputs(ppd->jcl_ps, stdout);
+ }
+
+ puts("%!");
+
+ /*
+ * Send a simple file the draws a box around the imageable area and shows
+ * the product/interpreter information...
+ */
+
+ puts("% You are using the wrong driver for your printer!\n"
+ "0 setgray\n"
+ "2 setlinewidth\n"
+ "initclip newpath clippath gsave stroke grestore pathbbox\n"
+ "exch pop exch pop exch 9 add exch 9 sub moveto\n"
+ "/Courier findfont 12 scalefont setfont\n"
+ "0 -12 rmoveto gsave product show grestore\n"
+ "0 -12 rmoveto gsave version show ( ) show revision 20 string cvs show "
+ "grestore\n"
+ "0 -12 rmoveto gsave serialnumber 20 string cvs show grestore\n"
+ "showpage");
+
+ /*
+ * Finish the job...
+ */
+
+ if (ppd->jcl_begin)
+ fputs(ppd->jcl_begin, stdout);
+ else
+ putchar(0x04);
+
+ fflush(stdout);
+}
+
+
+/*
+ * 'report_levels()' - Report supply levels.
+ */
+
+static void
+report_levels(ppd_file_t *ppd, /* I - PPD file */
+ const char *user) /* I - Printing user */
+{
+ /*
+ * Put the printer in PostScript mode...
+ */
+
+ if (ppd->jcl_begin)
+ {
+ fputs(ppd->jcl_begin, stdout);
+ fputs(ppd->jcl_ps, stdout);
+ }
+
+ puts("%!");
+
+ /*
+ * Finish the job...
+ */
+
+ if (ppd->jcl_begin)
+ fputs(ppd->jcl_begin, stdout);
+ else
+ putchar(0x04);
+
+ fflush(stdout);
+}
+
+
+/*
+ * End of "$Id$".
+ */
projects / thirdparty / cups.git / blobdiff