/*
- * "$Id: usb.c,v 1.18.2.22 2003/01/23 16:15:55 mike Exp $"
+ * "$Id$"
*
- * USB port backend for the Common UNIX Printing System (CUPS).
+ * USB port backend for CUPS.
*
- * Copyright 1997-2003 by Easy Software Products, all rights reserved.
+ * Copyright 2007-2012 by Apple Inc.
+ * Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
* These coded instructions, statements, and computer programs are the
- * property of Easy Software Products and are protected by Federal
- * copyright law. Distribution and use rights are outlined in the file
+ * property of Apple Inc. and are protected by Federal copyright
+ * law. Distribution and use rights are outlined in the file "LICENSE.txt"
* "LICENSE" which should have been included with this file. If this
- * file is missing or damaged please contact Easy Software Products
- * at:
- *
- * Attn: CUPS Licensing Information
- * Easy Software Products
- * 44141 Airport View Drive, Suite 204
- * Hollywood, Maryland 20636-3111 USA
- *
- * Voice: (301) 373-9603
- * EMail: cups-info@cups.org
- * WWW: http://www.cups.org
+ * file is missing or damaged, see the license at "http://www.cups.org/".
*
* This file is subject to the Apple OS-Developed Software exception.
*
* Contents:
*
+ * list_devices() - List all available USB devices to stdout.
+ * print_device() - Print a file to a USB device.
* main() - Send a file to the specified USB port.
- * list_devices() - List all USB devices.
*/
/*
* Include necessary headers.
*/
-#include <cups/cups.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <cups/string.h>
-#include <signal.h>
+#ifdef __APPLE__
+ /* A header order dependency requires this be first */
+# include <ApplicationServices/ApplicationServices.h>
+#endif /* __APPLE__ */
+
+#include "backend-private.h"
#ifdef WIN32
# include <io.h>
# include <termios.h>
#endif /* WIN32 */
-#ifdef __linux
-# include <sys/ioctl.h>
-# include <linux/lp.h>
-# define IOCNR_GET_DEVICE_ID 1
/*
- * Get device_id string
+ * Local functions...
*/
-# define LPIOC_GET_DEVICE_ID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_DEVICE_ID, len)
-#endif /* __linux */
-#ifdef __sun
-# include <sys/ecppio.h>
-#endif /* __sun */
+void list_devices(void);
+int print_device(const char *uri, const char *hostname,
+ const char *resource, char *options,
+ int print_fd, int copies, int argc, char *argv[]);
/*
- * Local functions...
+ * Include the vendor-specific USB implementation...
*/
-void decode_device_id(int port, const char *device_id,
- char *make_model, int mmsize,
- char *uri, int urisize);
-void list_devices(void);
-int open_device(const char *uri);
+#ifdef HAVE_LIBUSB
+# include "usb-libusb.c"
+#elif defined(__APPLE__)
+# include "usb-darwin.c"
+#elif defined(__linux) || defined(__sun) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
+# include "usb-unix.c"
+#else
+/*
+ * Use dummy functions that do nothing on unsupported platforms...
+ * These can be used as templates for implementing USB printing on new
+ * platforms...
+ */
+
+/*
+ * 'list_devices()' - List all available USB devices to stdout.
+ */
+
+void
+list_devices(void)
+{
+ /*
+ * Don't have any devices to list... Use output of the form:
+ *
+ * direct usb:/make/model?serial=foo "Make Model" "USB Printer"
+ *
+ * Note that "Hewlett Packard" or any other variation MUST be mapped to
+ * "HP" for compatibility with the PPD and ICC specs.
+ */
+}
+
+
+/*
+ * 'print_device()' - Print a file to a USB device.
+ */
+
+int /* O - Exit status */
+print_device(const char *uri, /* I - Device URI */
+ const char *hostname, /* I - Hostname/manufacturer */
+ const char *resource, /* I - Resource/modelname */
+ char *options, /* I - Device options/serial number */
+ int print_fd, /* I - File descriptor to print */
+ int copies, /* I - Copies to print */
+ int argc, /* I - Number of command-line arguments (6 or 7) */
+ char *argv[]) /* I - Command-line arguments */
+{
+ /*
+ * Can't print, so just reference the arguments to eliminate compiler
+ * warnings and return and exit status of 1. Normally you would use the
+ * arguments to send a file to the printer and return 0 if everything
+ * worked OK and non-zero if there was an error.
+ */
+
+ (void)uri;
+ (void)hostname;
+ (void)resource;
+ (void)options;
+ (void)print_fd;
+ (void)copies;
+ (void)argc;
+ (void)argv;
+
+ return (CUPS_BACKEND_FAILED);
+}
+#endif /* HAVE_LIBUSB */
/*
* printer-uri job-id user title copies options [file]
*/
-int /* O - Exit status */
-main(int argc, /* I - Number of command-line arguments (6 or 7) */
- char *argv[]) /* I - Command-line arguments */
+int /* O - Exit status */
+main(int argc, /* I - Number of command-line arguments (6 or 7) */
+ char *argv[]) /* I - Command-line arguments */
{
- int fp; /* Print file */
- int copies; /* Number of copies to print */
- int fd; /* Parallel device */
- int wbytes; /* Number of bytes written */
- size_t nbytes, /* Number of bytes read */
- tbytes; /* Total number of bytes written */
- char buffer[8192], /* Output buffer */
- *bufptr; /* Pointer into buffer */
- struct termios opts; /* Parallel port options */
+ int print_fd; /* Print file */
+ int copies; /* Number of copies to print */
+ int status; /* Exit status */
+ int port; /* Port number (not used) */
+ const char *uri; /* Device URI */
+ char method[255], /* Method in URI */
+ hostname[1024], /* Hostname */
+ username[255], /* Username info (not used) */
+ resource[1024], /* Resource info (device and options) */
+ *options; /* Pointer to options */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
- struct sigaction action; /* Actions for POSIX signals */
+ struct sigaction action; /* Actions for POSIX signals */
#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
-#ifdef __linux
- unsigned char status; /* Port status (off-line, out-of-paper, etc.) */
-#endif /* __linux */
/*
if (argc == 1)
{
list_devices();
- return (0);
+ return (CUPS_BACKEND_OK);
}
else if (argc < 6 || argc > 7)
{
- fputs("Usage: USB job-id user title copies options [file]\n", stderr);
- return (1);
- }
-
- /*
- * If we have 7 arguments, print the file named on the command-line.
- * Otherwise, send stdin instead...
- */
-
- if (argc == 6)
- {
- fp = 0;
- copies = 1;
+ _cupsLangPrintf(stderr,
+ _("Usage: %s job-id user title copies options [file]"),
+ argv[0]);
+ return (CUPS_BACKEND_FAILED);
}
- else
- {
- /*
- * Try to open the print file...
- */
-
- if ((fp = open(argv[6], O_RDONLY)) < 0)
- {
- perror("ERROR: unable to open print file");
- return (1);
- }
-
- copies = atoi(argv[4]);
- }
-
- /*
- * Open the USB port device...
- */
-
- do
- {
- if ((fd = open_device(argv[0])) == -1)
- {
- if (errno == EBUSY)
- {
- fputs("INFO: USB port busy; will retry in 30 seconds...\n", stderr);
- sleep(30);
- }
- else if (errno == ENXIO || errno == EIO || errno == ENOENT)
- {
- fputs("INFO: Printer not connected; will retry in 30 seconds...\n", stderr);
- sleep(30);
- }
- else
- {
- fprintf(stderr, "ERROR: Unable to open USB device \"%s\": %s\n",
- argv[0], strerror(errno));
- return (1);
- }
- }
- }
- while (fd < 0);
-
- /*
- * Set any options provided...
- */
-
- tcgetattr(fd, &opts);
-
- opts.c_lflag &= ~(ICANON | ECHO | ISIG); /* Raw mode */
-
- /**** No options supported yet ****/
-
- tcsetattr(fd, TCSANOW, &opts);
/*
- * Now that we are "connected" to the port, ignore SIGTERM so that we
- * can finish out any page data the driver sends (e.g. to eject the
- * current page...
+ * Extract the device name and options from the URI...
*/
-#ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
- sigset(SIGTERM, SIG_IGN);
-#elif defined(HAVE_SIGACTION)
- memset(&action, 0, sizeof(action));
-
- sigemptyset(&action.sa_mask);
- action.sa_handler = SIG_IGN;
- sigaction(SIGTERM, &action, NULL);
-#else
- signal(SIGTERM, SIG_IGN);
-#endif /* HAVE_SIGSET */
-
-#ifdef __linux
- /*
- * Show the printer status before we send the file; normally, we'd
- * do this while we write data to the printer, however at least some
- * Linux kernels have buggy USB drivers which don't like to be
- * queried while sending data to the printer...
- */
+ uri = cupsBackendDeviceURI(argv);
- if (ioctl(fd, LPGETSTATUS, &status) == 0)
+ if (httpSeparateURI(HTTP_URI_CODING_ALL, uri,
+ method, sizeof(method), username, sizeof(username),
+ hostname, sizeof(hostname), &port,
+ resource, sizeof(resource)) < HTTP_URI_OK)
{
- fprintf(stderr, "DEBUG: LPGETSTATUS returned a port status of %02X...\n", status);
-
- if (status & LP_NOPA)
- fputs("WARNING: Media tray empty!\n", stderr);
- else if (status & LP_ERR)
- fputs("WARNING: Printer fault!\n", stderr);
- else if (status & LP_OFFL)
- fputs("WARNING: Printer off-line.\n", stderr);
- }
-#endif /* __linux */
-
- /*
- * Finally, send the print file...
- */
-
- while (copies > 0)
- {
- copies --;
-
- if (fp != 0)
- {
- fputs("PAGE: 1 1\n", stderr);
- lseek(fp, 0, SEEK_SET);
- }
-
- tbytes = 0;
- while ((nbytes = read(fp, buffer, sizeof(buffer))) > 0)
- {
- /*
- * Write the print data to the printer...
- */
-
- tbytes += nbytes;
- bufptr = buffer;
-
- while (nbytes > 0)
- {
-
- if ((wbytes = write(fd, bufptr, nbytes)) < 0)
- if (errno == ENOTTY)
- wbytes = write(fd, bufptr, nbytes);
-
- if (wbytes < 0)
- {
- perror("ERROR: Unable to send print file to printer");
- break;
- }
-
- nbytes -= wbytes;
- bufptr += wbytes;
- }
-
- if (argc > 6)
- fprintf(stderr, "INFO: Sending print file, %lu bytes...\n",
- (unsigned long)tbytes);
- }
+ _cupsLangPrintFilter(stderr, "ERROR",
+ _("No device URI found in argv[0] or in DEVICE_URI "
+ "environment variable."));
+ return (1);
}
/*
- * Close the socket connection and input file and return...
+ * See if there are any options...
*/
- close(fd);
- if (fp != 0)
- close(fp);
-
- fputs("INFO: Ready to print.\n", stderr);
-
- return (0);
-}
-
-
-/*
- * 'decode_device_id()' - Decode the IEEE-1284 device ID string.
- */
-
-void
-decode_device_id(int port, /* I - Port number */
- const char *device_id, /* I - 1284 device ID string */
- char *make_model, /* O - Make/model */
- int mmsize, /* I - Size of buffer */
- char *uri, /* O - Device URI */
- int urisize) /* I - Size of buffer */
-{
- char *attr, /* 1284 attribute */
- *delim, /* 1284 delimiter */
- *uriptr, /* Pointer into URI */
- line[1024]; /* Line from devices file */
- FILE *fp; /* /proc/bus/usb/devices file */
- int current; /* Current printer port */
- char serial_number[1024], /* Serial number string */
- temp[1024]; /* Temporary string */
- int i, j, k; /* Looping vars */
- int num_blocks; /* Number of blocks in devices file */
- int blocks[100][2]; /* Blocks in devices file */
-
-
- /*
- * Look for the description field...
- */
-
- if ((attr = strstr(device_id, "DES:")) != NULL)
- attr += 4;
- else if ((attr = strstr(device_id, "DESCRIPTION:")) != NULL)
- attr += 12;
-
- if (attr)
+ if ((options = strchr(resource, '?')) != NULL)
{
- if (strncasecmp(attr, "Hewlett-Packard ", 16) == 0)
- {
- strlcpy(make_model, "HP ", mmsize);
- strlcpy(make_model + 3, attr + 16, mmsize - 3);
- }
- else
- {
- strlcpy(make_model, attr, mmsize);
- }
-
- if ((delim = strchr(make_model, ';')) != NULL)
- *delim = '\0';
- }
- else
- strlcpy(make_model, "Unknown", mmsize);
-
- /*
- * Look for the serial number field...
- */
-
- if ((attr = strstr(device_id, "SERN:")) != NULL)
- attr += 5;
- else if ((attr = strstr(device_id, "SERIALNUMBER:")) != NULL)
- attr += 13;
-
- if (attr)
- {
- strlcpy(serial_number, attr, sizeof(serial_number));
-
- if ((delim = strchr(serial_number, ';')) != NULL)
- *delim = '\0';
- }
- else if ((fp = fopen("/proc/bus/usb/devices", "r")) != NULL)
- {
- /*
- * No serial number in device ID string; try the devices file...
- *
- * Since the devices file may list the devices out-of-order, we need
- * to first read all of the blocks in the file and sort them...
- */
-
- num_blocks = 0;
-
- while (fgets(line, sizeof(line), fp) != NULL)
- {
- if (line[0] == 'T')
- {
- if ((attr = strstr(line, "Dev#=")) == NULL)
- continue;
-
- blocks[num_blocks][0] = (int)ftell(fp);
- blocks[num_blocks][1] = atoi(attr + 5);
-
- num_blocks ++;
-
- if (num_blocks >= 100)
- break;
- }
- }
-
/*
- * Sort the blocks by device number...
+ * Yup, terminate the device name string and move to the first
+ * character of the options...
*/
- for (i = 0; i < (num_blocks - 1); i ++)
- for (j = i + 1; j < num_blocks; j ++)
- if (blocks[j][1] < blocks[i][1])
- {
- k = blocks[j][0];
- blocks[j][0] = blocks[i][0];
- blocks[i][0] = k;
-
- k = blocks[j][1];
- blocks[j][1] = blocks[i][1];
- blocks[i][1] = k;
- }
-
- /*
- * Then re-scan the file for the right block...
- */
-
- serial_number[0] = '\0';
-
- for (current = 0, i = 0; !serial_number[0] && i < num_blocks; i ++)
- {
- fseek(fp, blocks[i][0], SEEK_SET);
-
- while (fgets(line, sizeof(line), fp) != NULL)
- {
- if (line[0] == 'T')
- break;
-
- if (line[0] == 'S' && (attr = strstr(line, "SerialNumber=")) != NULL)
- {
- /*
- * Copy serial number from line...
- */
-
- strlcpy(temp, attr + 13, sizeof(temp));
- if ((delim = strchr(temp, '\n')) != NULL)
- *delim = '\0';
- }
- else if (line[0] == 'I' && strstr(line, "Driver=usblp") != NULL &&
- strstr(line, "Prot=02") != NULL)
- {
- /*
- * Found printer device; if current == port, then use it!
- */
-
- if (current == port)
- {
- strlcpy(serial_number, temp, sizeof(serial_number));
- break;
- }
-
- current ++;
- }
- }
- }
-
- fclose(fp);
+ *options++ = '\0';
}
/*
- * Generate the device URI from the make_model and serial number strings.
+ * If we have 7 arguments, print the file named on the command-line.
+ * Otherwise, send stdin instead...
*/
- strlcpy(uri, "usb://", urisize);
- for (uriptr = uri + 6, delim = make_model;
- *delim && uriptr < (uri + urisize - 1);
- delim ++)
- if (*delim == ' ')
- {
- delim ++;
- *uriptr++ = '/';
- break;
- }
- else
- *uriptr++ = *delim;
-
- for (; *delim && uriptr < (uri + urisize - 3); delim ++)
- if (*delim == ' ')
- {
- *uriptr++ = '%';
- *uriptr++ = '2';
- *uriptr++ = '0';
- }
- else
- *uriptr++ = *delim;
-
- *uriptr = '\0';
-
- if (serial_number[0])
+ if (argc == 6)
{
- /*
- * Add the serial number to the URI...
- */
-
- strlcat(uri, "?serial=", urisize);
- strlcat(uri, serial_number, urisize);
+ print_fd = 0;
+ copies = 1;
}
-}
-
-
-/*
- * 'list_devices()' - List all USB devices.
- */
-
-void
-list_devices(void)
-{
-#ifdef __linux
- int i; /* Looping var */
- int length; /* Length of device ID info */
- int fd; /* File descriptor */
- char format[255], /* Format for device filename */
- device[255], /* Device filename */
- device_id[1024], /* Device ID string */
- device_uri[1024], /* Device URI string */
- make_model[1024]; /* Make and model */
-
-
- /*
- * First figure out which USB printer filename to use...
- */
-
- if (access("/dev/usb/lp0", 0) == 0)
- strcpy(format, "/dev/usb/lp%d");
- else if (access("/dev/usb/usblp0", 0) == 0)
- strcpy(format, "/dev/usb/usblp%d");
else
- strcpy(format, "/dev/usblp%d");
-
- /*
- * Then open each USB device...
- */
-
- for (i = 0; i < 16; i ++)
{
- sprintf(device, format, i);
+ /*
+ * Try to open the print file...
+ */
- if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
+ if ((print_fd = open(argv[6], O_RDONLY)) < 0)
{
- if (ioctl(fd, LPIOC_GET_DEVICE_ID(sizeof(device_id)), device_id) == 0)
- {
- length = (((unsigned)device_id[0] & 255) << 8) +
- ((unsigned)device_id[1] & 255);
-
- /*
- * Check to see if the length is larger than our buffer; first
- * assume that the vendor incorrectly implemented the 1284 spec,
- * and then limit the length to the size of our buffer...
- */
-
- if (length > (sizeof(device_id) - 2))
- length = (((unsigned)device_id[1] & 255) << 8) +
- ((unsigned)device_id[0] & 255);
-
- if (length > (sizeof(device_id) - 2))
- length = sizeof(device_id) - 2;
-
- memcpy(device_id, device_id + 2, length);
- device_id[length] = '\0';
- }
- else
- device_id[0] = '\0';
-
- close(fd);
+ _cupsLangPrintError("ERROR", _("Unable to open print file"));
+ return (CUPS_BACKEND_FAILED);
}
- else
- device_id[0] = '\0';
-
- if (device_id[0])
- {
- decode_device_id(i, device_id, make_model, sizeof(make_model),
- device_uri, sizeof(device_uri));
- printf("direct %s \"%s\" \"USB Printer #%d\"\n", device_uri,
- make_model, i + 1);
- }
- else
- printf("direct usb:%s \"Unknown\" \"USB Printer #%d\"\n", device, i + 1);
+ copies = atoi(argv[4]);
}
-#elif defined(__sgi)
-#elif defined(__sun)
- int i; /* Looping var */
- int fd; /* File descriptor */
- char device[255], /* Device filename */
- device_id[1024], /* Device ID string */
- device_uri[1024], /* Device URI string */
- make_model[1024]; /* Make and model */
-# ifdef ECPPIOC_GETDEVID
- struct ecpp_device_id did; /* Device ID buffer */
-# endif /* ECPPIOC_GETDEVID */
-
/*
- * Open each USB device...
+ * Finally, send the print file...
*/
- for (i = 0; i < 8; i ++)
- {
- sprintf(device, "/dev/usb/printer%d", i);
-
-# ifndef ECPPIOC_GETDEVID
- if (!access(device, 0))
- printf("direct usb:%s \"Unknown\" \"USB Printer #%d\"\n", device, i + 1);
-# else
- if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
- {
- did.mode = ECPP_CENTRONICS;
- did.len = sizeof(device_id);
- did.rlen = 0;
- did.addr = device_id;
-
- if (ioctl(fd, ECPPIOC_GETDEVID, &did) == 0)
- {
- if (did.rlen < (sizeof(device_id) - 1))
- device_id[did.rlen] = '\0';
- else
- device_id[sizeof(device_id) - 1] = '\0';
- }
- else
- device_id[0] = '\0';
-
- close(fd);
- }
- else
- device_id[0] = '\0';
-
- if (device_id[0])
- {
- decode_device_id(i, device_id, make_model, sizeof(make_model),
- device_uri, sizeof(device_uri));
-
- printf("direct %s \"%s\" \"USB Printer #%d\"\n", device_uri,
- make_model, i + 1);
- }
- else
- printf("direct usb:%s \"Unknown\" \"USB Printer #%d\"\n", device, i + 1);
-# endif /* !ECPPIOC_GETDEVID */
- }
-#elif defined(__hpux)
-#elif defined(__osf)
-#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
- int i; /* Looping var */
- char device[255]; /* Device filename */
-
-
- for (i = 0; i < 8; i ++)
- {
- sprintf(device, "/dev/ulpt%d", i);
- if (!access(device, 0))
- printf("direct usb:%s \"Unknown\" \"USB Printer #%d\"\n", device, i + 1);
-
- sprintf(device, "/dev/unlpt%d", i);
- if (!access(device, 0))
- printf("direct usb:%s \"Unknown\" \"USB Printer #%d (no reset)\"\n", device, i + 1);
- }
-#endif
-}
+ status = print_device(uri, hostname, resource, options, print_fd, copies,
+ argc, argv);
-
-/*
- * 'open_device()' - Open a USB device...
- */
-
-int /* O - File descriptor or -1 on error */
-open_device(const char *uri) /* I - Device URI */
-{
/*
- * The generic implementation just treats the URI as a device filename...
- * Specific operating systems may also support using the device serial
- * number and/or make/model.
+ * Close the input file and return...
*/
- if (strncmp(uri, "usb:/dev/", 9) == 0)
- return (open(uri + 4, O_RDWR | O_EXCL));
-#ifdef __linux
- else if (strncmp(uri, "usb://", 6) == 0)
- {
- /*
- * For Linux, try looking up the device serial number or model...
- */
+ if (print_fd != 0)
+ close(print_fd);
- int i; /* Looping var */
- int length; /* Length of device ID info */
- int fd; /* File descriptor */
- char format[255], /* Format for device filename */
- device[255], /* Device filename */
- device_id[1024], /* Device ID string */
- make_model[1024], /* Make and model */
- device_uri[1024]; /* Device URI string */
-
-
- /*
- * First figure out which USB printer filename to use...
- */
-
- if (access("/dev/usb/lp0", 0) == 0)
- strcpy(format, "/dev/usb/lp%d");
- else if (access("/dev/usb/usblp0", 0) == 0)
- strcpy(format, "/dev/usb/usblp%d");
- else
- strcpy(format, "/dev/usblp%d");
-
- /*
- * Then find the correct USB device...
- */
-
- for (i = 0; i < 16; i ++)
- {
- sprintf(device, format, i);
-
- if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
- {
- if (ioctl(fd, LPIOC_GET_DEVICE_ID(sizeof(device_id)), device_id) == 0)
- {
- length = (((unsigned)device_id[0] & 255) << 8) +
- ((unsigned)device_id[1] & 255);
- memcpy(device_id, device_id + 2, length);
- device_id[length] = '\0';
- }
- else
- device_id[0] = '\0';
- }
- else
- device_id[0] = '\0';
-
- if (device_id[0])
- {
- /*
- * Got the device ID - is this the one?
- */
-
- decode_device_id(i, device_id, make_model, sizeof(make_model),
- device_uri, sizeof(device_uri));
-
- if (strcmp(uri, device_uri) == 0)
- return (fd); /* Yes, return this file descriptor... */
- }
-
- /*
- * This wasn't the one...
- */
-
- close(fd);
- }
-
- /*
- * Couldn't find the printer, return "no such device or address"...
- */
-
- errno = ENODEV;
-
- return (-1);
- }
-#elif defined(__sun) && defined(ECPPIOC_GETDEVID)
- else if (strncmp(uri, "usb://", 6) == 0)
- {
- /*
- * For Solaris, try looking up the device serial number or model...
- */
-
- int i; /* Looping var */
- int fd; /* File descriptor */
- char device[255], /* Device filename */
- device_id[1024], /* Device ID string */
- make_model[1024], /* Make and model */
- device_uri[1024]; /* Device URI string */
- struct ecpp_device_id did; /* Device ID buffer */
-
-
- /*
- * Find the correct USB device...
- */
-
- for (i = 0; i < 8; i ++)
- {
- sprintf(device, "/dev/usb/printer%d", i);
-
- if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
- {
- did.mode = ECPP_CENTRONICS;
- did.len = sizeof(device_id);
- did.rlen = 0;
- did.addr = device_id;
-
- if (ioctl(fd, ECPPIOC_GETDEVID, &did) == 0)
- {
- if (did.rlen < (sizeof(device_id) - 1))
- device_id[did.rlen] = '\0';
- else
- device_id[sizeof(device_id) - 1] = '\0';
- }
- else
- device_id[0] = '\0';
- }
- else
- device_id[0] = '\0';
-
- if (device_id[0])
- {
- /*
- * Got the device ID - is this the one?
- */
-
- decode_device_id(i, device_id, make_model, sizeof(make_model),
- device_uri, sizeof(device_uri));
-
- if (strcmp(uri, device_uri) == 0)
- return (fd); /* Yes, return this file descriptor... */
- }
-
- /*
- * This wasn't the one...
- */
-
- close(fd);
- }
-
- /*
- * Couldn't find the printer, return "no such device or address"...
- */
-
- errno = ENODEV;
-
- return (-1);
- }
-#endif /* __linux */
- else
- {
- errno = ENODEV;
- return (-1);
- }
+ return (status);
}
/*
- * End of "$Id: usb.c,v 1.18.2.22 2003/01/23 16:15:55 mike Exp $".
+ * End of "$Id$".
*/
projects / thirdparty / cups.git / blobdiff