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opt/cups/usb-backend-both-usblp-and-libusb.dpatch

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#! /bin/sh /usr/share/dpatch/dpatch-run
## usb-backend-both-usblp-and-libusb.dpatch by <till.kamppeter@gmail.com>
##
## DP: http://www.cups.org/str.php?L3357
@DPATCH@
diff -urNad cups-1.4.3~/backend/Makefile cups-1.4.3/backend/Makefile
--- cups-1.4.3~/backend/Makefile 2010-04-09 15:56:03.735720821 +0200
+++ cups-1.4.3/backend/Makefile 2010-04-09 15:56:04.335705387 +0200
@@ -267,7 +267,7 @@
echo Linking $@...
$(CC) $(LDFLAGS) -o usb usb.o libbackend.a $(LIBUSB) \
$(BACKLIBS) $(LIBS)
-usb.o: usb.c usb-darwin.c usb-libusb.c usb-unix.c
+usb.o: usb.c usb-darwin.c usb-hybrid.c usb-libusb.c usb-unix.c
#
diff -urNad cups-1.4.3~/backend/ieee1284.c cups-1.4.3/backend/ieee1284.c
--- cups-1.4.3~/backend/ieee1284.c 2009-12-08 03:13:42.000000000 +0100
+++ cups-1.4.3/backend/ieee1284.c 2010-04-09 15:56:04.335705387 +0200
@@ -255,6 +255,7 @@
cups_option_t *values; /* Keys and values in device ID */
const char *mfg, /* Manufacturer */
*mdl, /* Model */
+ *des, /* Description */
*sern; /* Serial number */
char temp[256], /* Temporary manufacturer string */
*tempptr; /* Pointer into temp string */
@@ -285,10 +286,20 @@
}
else
{
- strlcpy(temp, make_model, sizeof(temp));
+ /*
+ * No manufacturer? Use the model string or description...
+ */
+
+ if (mdl)
+ _ppdNormalizeMakeAndModel(mdl, temp, sizeof(temp));
+ else if ((des = cupsGetOption("DESCRIPTION", num_values, values)) != NULL ||
+ (des = cupsGetOption("DES", num_values, values)) != NULL)
+ _ppdNormalizeMakeAndModel(des, temp, sizeof(temp));
+ else
+ strlcpy(temp, "Unknown", sizeof(temp));
if ((tempptr = strchr(temp, ' ')) != NULL)
- *tempptr = '\0';
+ *tempptr = '\0';
mfg = temp;
}
diff -urNad cups-1.4.3~/backend/usb-hybrid.c cups-1.4.3/backend/usb-hybrid.c
--- cups-1.4.3~/backend/usb-hybrid.c 1970-01-01 01:00:00.000000000 +0100
+++ cups-1.4.3/backend/usb-hybrid.c 2010-04-09 15:56:04.345707078 +0200
@@ -0,0 +1,87 @@
+/*
+ * "$Id: usb-hybrid.c 8807 2009-08-31 18:45:43Z mike $"
+ *
+ * USB port backend for the Common UNIX Printing System (CUPS).
+ *
+ * This file is included from "usb.c" when compiled on Linux.
+ *
+ * Copyright 2007-2008 by Apple Inc.
+ * Copyright 1997-2007 by Easy Software Products, all rights reserved.
+ *
+ * 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"
+ * "LICENSE" which should have been included with this file. If this
+ * 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:
+ *
+ * print_device() - Print a file to a USB device.
+ * list_devices() - List all USB devices.
+ */
+
+/*
+ * Include necessary headers.
+ */
+
+#include <sys/select.h>
+
+/*
+ * Include the two USB implementations used under Linux ...
+ */
+
+#include "usb-libusb.c"
+#include "usb-unix.c"
+
+/*
+ * '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 */
+{
+ int result;
+ for(;;)
+ {
+ result = print_device_unix(uri, hostname, resource, options, print_fd,
+ copies, argc, argv);
+ if (result == -1)
+ {
+ result = print_device_libusb(uri, hostname, resource, options, print_fd,
+ copies, argc, argv);
+ if (result == -1)
+ sleep(5);
+ else
+ return(result);
+ }
+ else
+ return(result);
+ }
+}
+
+/*
+ * 'list_devices()' - List all USB devices.
+ */
+
+void
+list_devices(void)
+{
+ /* Try both discovery methods, each device will appear only under one
+ of them */
+ list_devices_libusb();
+ list_devices_unix();
+}
+
+
+/*
+ * End of "$Id: usb-hybrid.c 8807 2009-08-31 18:45:43Z mike $".
+ */
diff -urNad cups-1.4.3~/backend/usb-libusb.c cups-1.4.3/backend/usb-libusb.c
--- cups-1.4.3~/backend/usb-libusb.c 2009-09-11 22:03:31.000000000 +0200
+++ cups-1.4.3/backend/usb-libusb.c 2010-04-09 15:56:04.345707078 +0200
@@ -13,16 +13,16 @@
*
* Contents:
*
- * list_devices() - List the available printers.
- * print_device() - Print a file to a USB device.
+ * list_devices_libusb() - List the available printers.
+ * print_device_libusb() - Print a file to a USB device.
* close_device() - Close the connection to the USB printer.
* find_device() - Find or enumerate USB printers.
* get_device_id() - Get the IEEE-1284 device ID for the printer.
* list_cb() - List USB printers for discovery.
* make_device_uri() - Create a device URI for a USB printer.
- * open_device() - Open a connection to the USB printer.
+ * open_device_libusb() - Open a connection to the USB printer.
* print_cb() - Find a USB printer for printing.
- * side_cb() - Handle side-channel requests.
+ * side_cb_libusb() - Handle side-channel requests.
*/
/*
@@ -65,30 +65,30 @@
static char *make_device_uri(usb_printer_t *printer,
const char *device_id,
char *uri, size_t uri_size);
-static int open_device(usb_printer_t *printer, int verbose);
+static int open_device_libusb(usb_printer_t *printer, int verbose);
static int print_cb(usb_printer_t *printer, const char *device_uri,
const char *device_id, const void *data);
-static ssize_t side_cb(usb_printer_t *printer, int print_fd);
+static ssize_t side_cb_libusb(usb_printer_t *printer, int print_fd);
/*
- * 'list_devices()' - List the available printers.
+ * 'list_devices_libusb()' - List the available printers.
*/
void
-list_devices(void)
+list_devices_libusb(void)
{
- fputs("DEBUG: list_devices\n", stderr);
+ fputs("DEBUG: list_devices_libusb\n", stderr);
find_device(list_cb, NULL);
}
/*
- * 'print_device()' - Print a file to a USB device.
+ * 'print_device_libusb()' - Print a file to a USB device.
*/
int /* O - Exit status */
-print_device(const char *uri, /* I - Device URI */
+print_device_libusb(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 */
@@ -105,19 +105,23 @@
struct pollfd pfds[2]; /* Poll descriptors */
- fputs("DEBUG: print_device\n", stderr);
+ fputs("DEBUG: print_device_libusb\n", stderr);
/*
* Connect to the printer...
*/
+#if defined(__linux) || defined(__sun) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
+ if ((printer = find_device(print_cb, uri)) == NULL)
+ return(-1);
+#else
while ((printer = find_device(print_cb, uri)) == NULL)
{
_cupsLangPuts(stderr,
_("INFO: Waiting for printer to become available...\n"));
sleep(5);
}
-
+#endif
/*
* If we are printing data from a print driver on stdin, ignore SIGTERM
@@ -189,7 +193,7 @@
if (pfds[1].revents & (POLLIN | POLLHUP))
{
- if ((bytes = side_cb(printer, print_fd)) < 0)
+ if ((bytes = side_cb_libusb(printer, print_fd)) < 0)
pfds[1].events = 0; /* Filter has gone away... */
else
tbytes += bytes;
@@ -359,7 +363,7 @@
printer.iface = iface;
printer.handle = NULL;
- if (!open_device(&printer, data != NULL))
+ if (!open_device_libusb(&printer, data != NULL))
{
if (!get_device_id(&printer, device_id, sizeof(device_id)))
{
@@ -583,6 +587,14 @@
mfg = tempmfg;
}
+ if (!strncasecmp(mdl, mfg, strlen(mfg)))
+ {
+ mdl += strlen(mfg);
+
+ while (isspace(*mdl & 255))
+ mdl ++;
+ }
+
/*
* Generate the device URI from the manufacturer, model, serial number,
* and interface number...
@@ -611,11 +623,11 @@
/*
- * 'open_device()' - Open a connection to the USB printer.
+ * 'open_device_libusb()' - Open a connection to the USB printer.
*/
static int /* O - 0 on success, -1 on error */
-open_device(usb_printer_t *printer, /* I - Printer */
+open_device_libusb(usb_printer_t *printer, /* I - Printer */
int verbose) /* I - Update connecting-to-device state? */
{
int number; /* Configuration/interface/altset numbers */
@@ -733,16 +745,73 @@
const char *device_id, /* I - IEEE-1284 device ID */
const void *data) /* I - User data (make, model, S/N) */
{
- return (!strcmp((char *)data, device_uri));
+ char *uri = (char *)data,
+ *str1,
+ *str2,
+ buf[255],
+ requested_uri[1024];
+
+ /* Work on a copy of uri */
+ strncpy(requested_uri, uri, sizeof(requested_uri));
+ requested_uri[sizeof(requested_uri) - 1] = '\0';
+
+ /*
+ * libusb-discovered URIs can have an "interface" specification and this
+ * never happens for usblp-discovered URIs, so remove the "interface"
+ * specification from the URI which we are checking currently. This way a
+ * queue for a usblp-discovered printer can now be accessed via libusb
+ */
+ if (((str1 = strstr(requested_uri, "interface=")) == NULL) &&
+ ((str2 = strstr(device_uri, "interface=")) != NULL))
+ {
+ *(str2 - 1) = '\0';
+ }
+
+ /*
+ * Old URI with "serial=?". Cut this part off and consider this as
+ * an URI without serial number
+ */
+ if ((str1 = strstr(requested_uri, "serial=?")) != NULL)
+ *(str1 - 1) = '\0';
+
+ /*
+ * Old URI without serial number. Match it also with URIs with serial
+ * number
+ */
+ if (((str1 = strstr(requested_uri, "serial=")) == NULL) &&
+ ((str2 = strstr(device_uri, "serial=")) != NULL))
+ *(str2 - 1) = '\0';
+
+ /*
+ * libusb-discovered URIs can have a "serial" specification when the
+ * usblp-discovered URI for the same printer does not have one, as
+ * with libusb we can discover serial numbers also with other methods
+ * than only via the device ID. Therefore we accept also a
+ * usblp-discovered printer without serial number as a match. This we
+ * do by removing the serial number from the queue's (libusb-discovered)
+ * URI before comparing. Also warn the user because of the incapability
+ * of the usblp-based access to distinguish printers by the serial
+ * number.
+ */
+ if (((str1 = strstr(requested_uri, "serial=")) == NULL) &&
+ ((str2 = strstr(device_uri, "serial=")) != NULL))
+ {
+ *(str2 - 1) = '\0';
+ if (backendGetMakeModel(device_id, buf, sizeof(buf)) == 0)
+ fprintf(stderr, "WARNING: If you have more than one %s printer connected to this machine, please make sure that the \"usblp\" kernel module is always unloaded (and blacklisted) and re-create the queues for these printers. Otherwise CUPS will not be able to distinguish them.\n",
+ buf);
+ }
+
+ return (!strcmp(requested_uri, device_uri));
}
/*
- * 'side_cb()' - Handle side-channel requests.
+ * 'side_cb_libusb()' - Handle side-channel requests.
*/
static ssize_t /* O - Number of bytes written */
-side_cb(usb_printer_t *printer, /* I - Printer */
+side_cb_libusb(usb_printer_t *printer, /* I - Printer */
int print_fd) /* I - File to print */
{
ssize_t bytes, /* Bytes read/written */
diff -urNad cups-1.4.3~/backend/usb-unix.c cups-1.4.3/backend/usb-unix.c
--- cups-1.4.3~/backend/usb-unix.c 2009-12-08 03:13:42.000000000 +0100
+++ cups-1.4.3/backend/usb-unix.c 2010-04-09 15:56:30.799666933 +0200
@@ -18,10 +18,10 @@
*
* Contents:
*
- * print_device() - Print a file to a USB device.
- * list_devices() - List all USB devices.
- * open_device() - Open a USB device...
- * side_cb() - Handle side-channel requests...
+ * print_device_unix() - Print a file to a USB device.
+ * list_devices_unix() - List all USB devices.
+ * open_device_unix() - Open a USB device...
+ * side_cb_unix() - Handle side-channel requests...
*/
/*
@@ -35,17 +35,17 @@
* Local functions...
*/
-static int open_device(const char *uri, int *use_bc);
-static int side_cb(int print_fd, int device_fd, int snmp_fd,
+static int open_device_unix(const char *uri, int *use_bc);
+static int side_cb_unix(int print_fd, int device_fd, int snmp_fd,
http_addr_t *addr, int use_bc);
/*
- * 'print_device()' - Print a file to a USB device.
+ * 'print_device_unix()' - Print a file to a USB device.
*/
int /* O - Exit status */
-print_device(const char *uri, /* I - Device URI */
+print_device_unix(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 */
@@ -102,7 +102,7 @@
strncasecmp(hostname, "Minolta", 7);
#endif /* __FreeBSD__ || __NetBSD__ || __OpenBSD__ || __DragonFly__ */
- if ((device_fd = open_device(uri, &use_bc)) == -1)
+ if ((device_fd = open_device_unix(uri, &use_bc)) == -1)
{
if (getenv("CLASS") != NULL)
{
@@ -132,6 +132,10 @@
_("INFO: Printer busy; will retry in 10 seconds...\n"));
sleep(10);
}
+#ifdef HAVE_USB_H
+ else
+ return (-1);
+#else
else if (errno == ENXIO || errno == EIO || errno == ENOENT ||
errno == ENODEV)
{
@@ -147,6 +151,7 @@
resource, strerror(errno));
return (CUPS_BACKEND_FAILED);
}
+#endif
}
}
while (device_fd < 0);
@@ -190,7 +195,7 @@
tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, NULL);
#else
- tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, side_cb);
+ tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, side_cb_unix);
#endif /* __sun */
if (print_fd != 0 && tbytes >= 0)
@@ -214,11 +219,11 @@
/*
- * 'list_devices()' - List all USB devices.
+ * 'list_devices_unix()' - List all USB devices.
*/
void
-list_devices(void)
+list_devices_unix(void)
{
#ifdef __linux
int i; /* Looping var */
@@ -320,11 +325,11 @@
/*
- * 'open_device()' - Open a USB device...
+ * 'open_device_unix()' - Open a USB device...
*/
static int /* O - File descriptor or -1 on error */
-open_device(const char *uri, /* I - Device URI */
+open_device_unix(const char *uri, /* I - Device URI */
int *use_bc) /* O - Set to 0 for unidirectional */
{
int fd; /* File descriptor */
@@ -357,9 +362,12 @@
char device[255], /* Device filename */
device_id[1024], /* Device ID string */
make_model[1024], /* Make and model */
- device_uri[1024]; /* Device URI string */
-
+ device_uri[1024], /* Device URI string */
+ requested_uri[1024], /* Device URI string */
+ *str1,
+ *str2;
+
/*
* Find the correct USB device...
*/
@@ -407,7 +415,55 @@
device_uri[0] = '\0';
}
- if (!strcmp(uri, device_uri))
+ /* Work on a copy of uri */
+ strncpy(requested_uri, uri, sizeof(requested_uri));
+ requested_uri[sizeof(requested_uri) - 1] = '\0';
+
+ /*
+ * libusb-discovered URIs can have an "interface" specification and this
+ * never happens for usblp-discovered URIs, so remove the "interface"
+ * specification from the URI of the print queue. This way a queue for
+ * a libusb-discovered printer can now be accessed via the usblip kernel
+ * module
+ */
+ if ((str1 = strstr(requested_uri, "interface=")) != NULL)
+ *(str1 - 1) = '\0';
+
+ /*
+ * Old URI with "serial=?". Cut this part off and consider this as
+ * an URI without serial number
+ */
+ if ((str1 = strstr(requested_uri, "serial=?")) != NULL)
+ *(str1 - 1) = '\0';
+
+ /*
+ * Old URI without serial number. Match it also with URIs with serial
+ * number
+ */
+ if (((str1 = strstr(requested_uri, "serial=")) == NULL) &&
+ ((str2 = strstr(device_uri, "serial=")) != NULL))
+ *(str2 - 1) = '\0';
+
+ /*
+ * libusb-discovered URIs can have a "serial" specification when the
+ * usblp-discovered URI for the same printer does not have one, as
+ * with libusb we can discover serial numbers also with other methods
+ * than only via the device ID. Therefore we accept also a
+ * usblp-discovered printer without serial number as a match. This we
+ * do by removing the serial number from the queue's (libusb-discovered)
+ * URI before comparing. Also warn the user because of the incapability
+ * of the usblp-based access to distinguish printers by the serial
+ * number.
+ */
+ if (((str1 = strstr(requested_uri, "serial=")) != NULL) &&
+ ((str2 = strstr(device_uri, "serial=")) == NULL))
+ {
+ *(str1 - 1) = '\0';
+ fprintf(stderr, "WARNING: If you have more than one %s printer connected to this machine, please unload (and blacklist) the \"usblp\" kernel module as otherwise CUPS will not be able to distinguish your printers.\n",
+ make_model);
+ }
+
+ if (!strcmp(requested_uri, device_uri))
{
/*
* Yes, return this file descriptor...
@@ -433,10 +489,14 @@
*/
if (busy)
+ {
_cupsLangPuts(stderr,
_("INFO: Printer busy; will retry in 5 seconds...\n"));
- sleep(5);
+ sleep(5);
+ }
+ else
+ return -1;
}
}
#elif defined(__sun) && defined(ECPPIOC_GETDEVID)
@@ -557,11 +617,11 @@
/*
- * 'side_cb()' - Handle side-channel requests...
+ * 'side_cb_unix()' - Handle side-channel requests...
*/
static int /* O - 0 on success, -1 on error */
-side_cb(int print_fd, /* I - Print file */
+side_cb_unix(int print_fd, /* I - Print file */
int device_fd, /* I - Device file */
int snmp_fd, /* I - SNMP socket (unused) */
http_addr_t *addr, /* I - Device address (unused) */
diff -urNad cups-1.4.3~/backend/usb.c cups-1.4.3/backend/usb.c
--- cups-1.4.3~/backend/usb.c 2008-06-24 03:28:36.000000000 +0200
+++ cups-1.4.3/backend/usb.c 2010-04-09 15:56:04.345707078 +0200
@@ -56,7 +56,7 @@
*/
#ifdef HAVE_USB_H
-# include "usb-libusb.c"
+# include "usb-hybrid.c"
#elif defined(__APPLE__)
# include "usb-darwin.c"
#elif defined(__linux) || defined(__sun) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
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