1013 lines
24 KiB
C
1013 lines
24 KiB
C
/*
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* CUPS Backend common code
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*
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* Copyright (c) 2007-2014 Solomon Peachy <pizza@shaftnet.org>
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*
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* The latest version of this program can be found at:
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*
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* http://git.shaftnet.org/cgit/selphy_print.git
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 3 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* [http://www.gnu.org/licenses/gpl-3.0.html]
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*
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*/
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#include "backend_common.h"
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#define BACKEND_VERSION "0.50"
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#ifndef URI_PREFIX
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#error "Must Define URI_PREFIX"
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#endif
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/* Global variables */
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int dyesub_debug = 0;
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int extra_vid = -1;
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int extra_pid = -1;
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int extra_type = -1;
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char *use_serno = NULL;
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/* Support Functions */
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#define ID_BUF_SIZE 2048
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static char *get_device_id(struct libusb_device_handle *dev)
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{
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int length;
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int iface = 0;
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char *buf = malloc(ID_BUF_SIZE + 1);
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if (libusb_kernel_driver_active(dev, iface))
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libusb_detach_kernel_driver(dev, iface);
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libusb_claim_interface(dev, iface);
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if (libusb_control_transfer(dev,
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LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_ENDPOINT_IN |
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LIBUSB_RECIPIENT_INTERFACE,
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0, 0,
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(iface << 8),
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(unsigned char *)buf, ID_BUF_SIZE, 5000) < 0)
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{
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*buf = '\0';
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goto done;
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}
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/* length is the first two bytes, MSB first */
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length = (((unsigned)buf[0] & 255) << 8) |
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((unsigned)buf[1] & 255);
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/* Sanity checks */
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if (length > ID_BUF_SIZE || length < 14)
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length = (((unsigned)buf[1] & 255) << 8) |
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((unsigned)buf[0] & 255);
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if (length > ID_BUF_SIZE)
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length = ID_BUF_SIZE;
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if (length < 14) {
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*buf = '\0';
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goto done;
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}
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/* Move, and terminate */
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memmove(buf, buf + 2, length);
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buf[length] = '\0';
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done:
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libusb_release_interface(dev, iface);
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return buf;
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}
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/* Used with the IEEE1284 deviceid string parsing */
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struct deviceid_dict {
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char *key;
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char *val;
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};
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#define MAX_DICT 32
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static int parse1284_data(const char *device_id, struct deviceid_dict* dict)
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{
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char *ptr;
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char key[256];
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char val[256];
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int num = 0;
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//[whitespace]key[whitespace]:[whitespace]value[whitespace];
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while (*device_id && num < MAX_DICT) {
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/* Skip leading spaces */
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if (*device_id == ' ')
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device_id++;
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if (!*device_id)
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break;
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/* Work out key */
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for (ptr = key; *device_id && *device_id != ':'; device_id++)
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*ptr++ = *device_id;
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if (!*device_id)
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break;
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while (ptr > key && *(ptr-1) == ' ')
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ptr--;
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*ptr = 0;
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device_id++;
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if (!*device_id)
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break;
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/* Next up, value */
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for (ptr = val; *device_id && *device_id != ';'; device_id++)
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*ptr++ = *device_id;
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if (!*device_id)
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break;
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while (ptr > val && *(ptr-1) == ' ')
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ptr--;
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*ptr = 0;
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device_id++;
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/* Add it to the dictionary */
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dict[num].key = strdup(key);
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dict[num].val = strdup(val);
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num++;
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if (!*device_id)
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break;
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}
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return num;
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};
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static char *dict_find(const char *key, int dlen, struct deviceid_dict* dict)
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{
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while(dlen) {
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if (!strcmp(key, dict->key))
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return dict->val;
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dlen--;
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dict++;
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}
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return NULL;
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}
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/* I/O functions */
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int read_data(struct libusb_device_handle *dev, uint8_t endp,
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uint8_t *buf, int buflen, int *readlen)
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{
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int ret;
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/* Clear buffer */
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memset(buf, 0, buflen);
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ret = libusb_bulk_transfer(dev, endp,
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buf,
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buflen,
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readlen,
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10000);
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if (ret < 0) {
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ERROR("Failure to receive data from printer (libusb error %d: (%d/%d from 0x%02x))\n", ret, *readlen, buflen, endp);
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goto done;
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}
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if ((dyesub_debug > 1 && buflen < 4096) ||
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dyesub_debug > 2) {
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int i;
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DEBUG("<- ");
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for (i = 0 ; i < *readlen; i++) {
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DEBUG2("%02x ", *(buf+i));
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}
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DEBUG2("\n");
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}
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done:
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return ret;
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}
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int send_data(struct libusb_device_handle *dev, uint8_t endp,
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uint8_t *buf, int len)
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{
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int num = 0;
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if (dyesub_debug) {
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DEBUG("Sending %d bytes to printer\n", len);
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}
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while (len) {
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int len2 = (len > 65536) ? 65536: len;
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int ret = libusb_bulk_transfer(dev, endp,
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buf, len2,
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&num, 15000);
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if ((dyesub_debug > 1 && len < 4096) ||
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dyesub_debug > 2) {
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int i;
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DEBUG("-> ");
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for (i = 0 ; i < num; i++) {
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DEBUG2("%02x ", *(buf+i));
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}
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DEBUG2("\n");
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}
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if (ret < 0) {
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ERROR("Failure to send data to printer (libusb error %d: (%d/%d to 0x%02x))\n", ret, num, len, endp);
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return ret;
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}
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len -= num;
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buf += num;
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}
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return 0;
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}
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/* More stuff */
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int terminate = 0;
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static void sigterm_handler(int signum) {
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UNUSED(signum);
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terminate = 1;
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INFO("Job Cancelled");
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}
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static char *sanitize_string(char *str) {
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int len = strlen(str);
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while(len && (str[len-1] <= 0x20)) {
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str[len-1] = 0;
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len--;
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}
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return str;
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}
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/*
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These functions are Public Domain code obtained from:
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http://www.geekhideout.com/urlcode.shtml
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*/
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#include <ctype.h> /* for isalnum() */
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static char to_hex(char code) {
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static const char hex[] = "0123456789abcdef";
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return hex[code & 15];
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}
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static char from_hex(char ch) {
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return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
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}
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/* Note -- caller must free returned pointer! */
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static char *url_encode(char *str) {
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char *pstr = str, *buf = malloc(strlen(str) * 3 + 1), *pbuf = buf;
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while (*pstr) {
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if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
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*pbuf++ = *pstr;
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else if (*pstr == ' ')
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*pbuf++ = '+';
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else
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*pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
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pstr++;
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}
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*pbuf = '\0';
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return buf;
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}
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static char *url_decode(char *str) {
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char *pstr = str, *buf = malloc(strlen(str) + 1), *pbuf = buf;
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while (*pstr) {
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if (*pstr == '%') {
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if (pstr[1] && pstr[2]) {
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*pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
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pstr += 2;
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}
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} else if (*pstr == '+') {
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*pbuf++ = ' ';
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} else {
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*pbuf++ = *pstr;
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}
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pstr++;
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}
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*pbuf = '\0';
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return buf;
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}
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/* And now back to our regularly-scheduled programming */
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static int print_scan_output(struct libusb_device *device,
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struct libusb_device_descriptor *desc,
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char *prefix, char *manuf2,
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int found, int match,
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int scan_only, char *match_serno,
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struct dyesub_backend *backend)
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{
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struct libusb_device_handle *dev;
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char buf[256];
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char *product = NULL, *serial = NULL, *manuf = NULL, *descr = NULL;
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int dlen = 0;
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struct deviceid_dict dict[MAX_DICT];
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char *ieee_id;
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if (libusb_open(device, &dev)) {
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ERROR("Could not open device %04x:%04x (need to be root?)\n", desc->idVendor, desc->idProduct);
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found = -1;
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goto abort;
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}
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ieee_id = get_device_id(dev);
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/* Get IEEE1284 info */
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dlen = parse1284_data(ieee_id, dict);
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/* Look up mfg string. */
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if (manuf2 && strlen(manuf2)) {
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manuf = url_encode(manuf2); /* Backend supplied */
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} else if ((manuf = dict_find("MANUFACTURER", dlen, dict))) {
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manuf = url_encode(manuf);
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} else if ((manuf = dict_find("MFG", dlen, dict))) {
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manuf = url_encode(manuf);
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} else if ((manuf = dict_find("MFR", dlen, dict))) {
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manuf = url_encode(manuf);
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} else if (desc->iManufacturer) { /* Get from USB descriptor */
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buf[0] = 0;
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libusb_get_string_descriptor_ascii(dev, desc->iManufacturer, (unsigned char*)buf, STR_LEN_MAX);
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sanitize_string(buf);
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manuf = url_encode(buf);
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}
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if (!manuf || !strlen(manuf)) { /* Last-ditch */
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if (manuf) free(manuf);
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manuf = url_encode("Unknown");
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}
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/* Look up model number */
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if ((product = dict_find("MODEL", dlen, dict))) {
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product = url_encode(product);
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} else if ((product = dict_find("MDL", dlen, dict))) {
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product = url_encode(product);
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} else if (desc->iProduct) { /* Get from USB descriptor */
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buf[0] = 0;
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libusb_get_string_descriptor_ascii(dev, desc->iProduct, (unsigned char*)buf, STR_LEN_MAX);
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sanitize_string(buf);
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product = url_encode(buf);
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}
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if (!product || !strlen(product)) { /* Last-ditch */
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if (!product) free(product);
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product = url_encode("Unknown");
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}
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/* Look up description */
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if ((descr = dict_find("DESCRIPTION", dlen, dict))) {
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descr = strdup(descr);
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} else if ((descr = dict_find("DES", dlen, dict))) {
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descr = strdup(descr);
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}
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if (!descr || !strlen(descr)) { /* Last-ditch, generate */
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char *product2 = url_decode(product);
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char *manuf3 = url_decode(manuf);
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descr = malloc(256);
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sprintf(descr, "%s %s", manuf3, product2);
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free(product2);
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free(manuf3);
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}
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|
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/* Look up serial number */
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if ((serial = dict_find("SERIALNUMBER", dlen, dict))) {
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serial = url_encode(serial);
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} else if ((serial = dict_find("SN", dlen, dict))) {
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serial = url_encode(serial);
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} else if ((serial = dict_find("SER", dlen, dict))) {
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serial = url_encode(serial);
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} else if ((serial = dict_find("SERN", dlen, dict))) {
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serial = url_encode(serial);
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} else if (desc->iSerialNumber) { /* Get from USB descriptor */
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libusb_get_string_descriptor_ascii(dev, desc->iSerialNumber, (unsigned char*)buf, STR_LEN_MAX);
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sanitize_string(buf);
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serial = url_encode(buf);
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} else if (backend->query_serno) { /* Get from backend hook */
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int iface = 0;
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struct libusb_config_descriptor *config;
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|
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if (libusb_kernel_driver_active(dev, iface))
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libusb_detach_kernel_driver(dev, iface);
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|
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/* If we fail to claim the printer, it's already in use
|
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so we should just skip over it... */
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buf[0] = 0;
|
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if (!libusb_claim_interface(dev, iface)) {
|
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int i;
|
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uint8_t endp_up, endp_down;
|
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libusb_get_active_config_descriptor(device, &config);
|
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for (i = 0 ; i < config->interface[0].altsetting[0].bNumEndpoints ; i++) {
|
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if ((config->interface[0].altsetting[0].endpoint[i].bmAttributes & 3) == LIBUSB_TRANSFER_TYPE_BULK) {
|
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if (config->interface[0].altsetting[0].endpoint[i].bEndpointAddress & LIBUSB_ENDPOINT_IN)
|
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endp_up = config->interface[0].altsetting[0].endpoint[i].bEndpointAddress;
|
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else
|
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endp_down = config->interface[0].altsetting[0].endpoint[i].bEndpointAddress;
|
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}
|
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}
|
|
|
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/* Ignore result since a failure isn't critical here */
|
|
backend->query_serno(dev, endp_up, endp_down, buf, STR_LEN_MAX);
|
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libusb_release_interface(dev, iface);
|
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}
|
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serial = url_encode(buf);
|
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}
|
|
|
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if (!serial || !strlen(serial)) { /* Last-ditch */
|
|
if (serial) free(serial);
|
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WARNING("**** THIS PRINTER DOES NOT REPORT A SERIAL NUMBER!\n");
|
|
WARNING("**** If you intend to use multiple printers of this type, you\n");
|
|
WARNING("**** must only plug one in at a time or unexpected behaivor will occur!\n");
|
|
serial = strdup("NONE_UNKNOWN");
|
|
}
|
|
|
|
if (dyesub_debug)
|
|
DEBUG("%sVID: %04X PID: %04X Manuf: '%s' Product: '%s' Serial: '%s'\n",
|
|
match ? "MATCH: " : "",
|
|
desc->idVendor, desc->idProduct, manuf, product, serial);
|
|
|
|
if (scan_only) {
|
|
int k = 0;
|
|
|
|
/* URLify the manuf and model strings */
|
|
strncpy(buf, manuf, sizeof(buf) - 2);
|
|
k = strlen(buf);
|
|
buf[k++] = '/';
|
|
buf[k] = 0;
|
|
|
|
strncpy(buf + k, product, sizeof(buf)-k);
|
|
|
|
fprintf(stdout, "direct %s://%s?serial=%s&backend=%s \"%s\" \"%s\" \"%s\" \"\"\n",
|
|
prefix, buf, serial, backend->uri_prefix,
|
|
descr, descr,
|
|
ieee_id? ieee_id : "");
|
|
|
|
if (ieee_id)
|
|
free(ieee_id);
|
|
}
|
|
|
|
/* If a serial number was passed down, use it. */
|
|
if (match_serno && strcmp(match_serno, (char*)serial)) {
|
|
found = -1;
|
|
}
|
|
|
|
/* Free things up */
|
|
if(serial) free(serial);
|
|
if(manuf) free(manuf);
|
|
if(product) free(product);
|
|
if(descr) free(descr);
|
|
|
|
libusb_close(dev);
|
|
abort:
|
|
|
|
/* Clean up the dictionary */
|
|
while (dlen--) {
|
|
free (dict[dlen].key);
|
|
free (dict[dlen].val);
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
static struct dyesub_backend *backends[] = {
|
|
&canonselphy_backend,
|
|
&kodak6800_backend,
|
|
&kodak605_backend,
|
|
&kodak1400_backend,
|
|
&shinkos2145_backend,
|
|
&updr150_backend,
|
|
&mitsu70x_backend,
|
|
&dnpds40_backend,
|
|
&cw01_backend,
|
|
NULL,
|
|
};
|
|
|
|
static int find_and_enumerate(struct libusb_context *ctx,
|
|
struct libusb_device ***list,
|
|
struct dyesub_backend *backend,
|
|
char *match_serno,
|
|
int printer_type,
|
|
int scan_only)
|
|
{
|
|
int num;
|
|
int i, j, k;
|
|
int found = -1;
|
|
|
|
/* Enumerate and find suitable device */
|
|
num = libusb_get_device_list(ctx, list);
|
|
|
|
for (i = 0 ; i < num ; i++) {
|
|
struct libusb_device_descriptor desc;
|
|
int match = 0;
|
|
libusb_get_device_descriptor((*list)[i], &desc);
|
|
|
|
for (k = 0 ; backends[k] ; k++) {
|
|
if (backend && backend != backends[k])
|
|
continue;
|
|
for (j = 0 ; backends[k]->devices[j].vid ; j++) {
|
|
if (desc.idVendor == backends[k]->devices[j].vid &&
|
|
desc.idProduct == backends[k]->devices[j].pid) {
|
|
match = 1;
|
|
if (printer_type == P_ANY ||
|
|
printer_type == backends[k]->devices[j].type)
|
|
found = i;
|
|
goto match;
|
|
}
|
|
}
|
|
}
|
|
|
|
match:
|
|
if (!match) {
|
|
if (extra_pid != -1 &&
|
|
extra_vid != -1 &&
|
|
extra_type != -1) {
|
|
if (extra_vid == desc.idVendor &&
|
|
extra_pid == desc.idProduct) {
|
|
match = 1;
|
|
if (printer_type == P_ANY ||
|
|
printer_type == extra_type)
|
|
found = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!match)
|
|
continue;
|
|
|
|
found = print_scan_output((*list)[i], &desc,
|
|
URI_PREFIX, backends[k]->devices[j].manuf_str,
|
|
found, (found == i),
|
|
scan_only, match_serno,
|
|
backends[k]);
|
|
|
|
if (found != -1 && !scan_only)
|
|
break;
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
static struct dyesub_backend *find_backend(char *uri_prefix)
|
|
{
|
|
int i;
|
|
|
|
|
|
if (!uri_prefix)
|
|
return NULL;
|
|
|
|
for (i = 0; ; i++) {
|
|
struct dyesub_backend *backend = backends[i];
|
|
if (!backend)
|
|
return NULL;
|
|
if (!strcmp(uri_prefix, backend->uri_prefix))
|
|
return backend;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void print_license_blurb(void)
|
|
{
|
|
const char *license = "\n\
|
|
Copyright 2007-2014 Solomon Peachy <pizza AT shaftnet DOT org>\n\
|
|
\n\
|
|
This program is free software; you can redistribute it and/or modify it\n\
|
|
under the terms of the GNU General Public License as published by the Free\n\
|
|
Software Foundation; either version 3 of the License, or (at your option)\n\
|
|
any later version.\n\
|
|
\n\
|
|
This program is distributed in the hope that it will be useful, but\n\
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\n\
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License\n\
|
|
for more details.\n\
|
|
\n\
|
|
You should have received a copy of the GNU General Public License\n\
|
|
along with this program; if not, write to the Free Software\n\
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n\
|
|
\n [http://www.gnu.org/licenses/gpl-3.0.html]\n\n";
|
|
|
|
fprintf(stderr, "%s", license);
|
|
}
|
|
|
|
static void print_help(char *argv0, struct dyesub_backend *backend)
|
|
{
|
|
struct libusb_context *ctx = NULL;
|
|
struct libusb_device **list = NULL;
|
|
int i;
|
|
|
|
char *ptr = strrchr(argv0, '/');
|
|
if (ptr)
|
|
ptr++;
|
|
else
|
|
ptr = argv0;
|
|
|
|
if (!backend)
|
|
backend = find_backend(ptr);
|
|
|
|
if (!backend) {
|
|
int i;
|
|
DEBUG("CUPS Usage:\n");
|
|
DEBUG("\tDEVICE_URI=someuri %s job user title num-copies options [ filename ]\n", URI_PREFIX);
|
|
DEBUG("\n");
|
|
DEBUG("Standalone Usage:\n");
|
|
DEBUG("\t%s\n", URI_PREFIX);
|
|
DEBUG(" [ -D ] [ -G ]\n");
|
|
DEBUG(" [ -S serialnum ] [ -B backendname ] \n");
|
|
DEBUG(" [ -V extra_vid ] [ -P extra_pid ] [ -T extra_type ] \n");
|
|
DEBUG(" [ backend_specific_args ] \n");
|
|
DEBUG(" [ -d copies ] [ - | infile ] \n");
|
|
for (i = 0; ; i++) {
|
|
backend = backends[i];
|
|
if (!backend)
|
|
break;
|
|
DEBUG(" -B %s\t# %s version %s\n",
|
|
backend->uri_prefix, backend->name, backend->version);
|
|
if (backend->cmdline_usage)
|
|
backend->cmdline_usage();
|
|
}
|
|
} else {
|
|
DEBUG("Standalone %s backend version %s\n",
|
|
backend->name, backend->version);
|
|
DEBUG("\t%s\n", backend->uri_prefix);
|
|
DEBUG("\t[ -D ] [ -G ] [ -S serialnum ] \n");
|
|
DEBUG("\t[ -V extra_vid ] [ -P extra_pid ] [ -T extra_type ] \n");
|
|
if (backend->cmdline_usage)
|
|
backend->cmdline_usage();
|
|
DEBUG("\t[ -d copies ] [ infile | - ]\n");
|
|
}
|
|
|
|
i = libusb_init(&ctx);
|
|
if (i) {
|
|
ERROR("Failed to initialize libusb (%d)\n", i);
|
|
exit(CUPS_BACKEND_STOP);
|
|
}
|
|
find_and_enumerate(ctx, &list, backend, NULL, P_ANY, 1);
|
|
libusb_free_device_list(list, 1);
|
|
libusb_exit(ctx);
|
|
}
|
|
|
|
int main (int argc, char **argv)
|
|
{
|
|
struct libusb_context *ctx = NULL;
|
|
struct libusb_device **list = NULL;
|
|
struct libusb_device_handle *dev;
|
|
struct libusb_config_descriptor *config;
|
|
|
|
struct dyesub_backend *backend = NULL;
|
|
void * backend_ctx = NULL;
|
|
|
|
uint8_t endp_up = 0;
|
|
uint8_t endp_down = 0;
|
|
|
|
int data_fd = fileno(stdin);
|
|
|
|
int i;
|
|
int claimed;
|
|
int backend_cmd = 0;
|
|
|
|
int ret = CUPS_BACKEND_OK;
|
|
int iface = 0;
|
|
int found = -1;
|
|
int copies = 1;
|
|
int jobid = 0;
|
|
int pages = 0;
|
|
|
|
char *uri;
|
|
char *fname = NULL;
|
|
int printer_type = P_ANY;
|
|
|
|
DEBUG("Multi-Call Dye-sublimation CUPS Backend version %s\n",
|
|
BACKEND_VERSION);
|
|
DEBUG("Copyright 2007-2014 Solomon Peachy\n");
|
|
DEBUG("This free software comes with ABSOLUTELY NO WARRANTY! \n");
|
|
DEBUG("Licensed under the GNU GPL. Run with '-G' for more details.\n");
|
|
DEBUG("\n");
|
|
|
|
/* First pass at cmdline parsing */
|
|
if (getenv("DYESUB_DEBUG"))
|
|
dyesub_debug++;
|
|
if (getenv("EXTRA_PID"))
|
|
extra_pid = strtol(getenv("EXTRA_PID"), NULL, 16);
|
|
if (getenv("EXTRA_VID"))
|
|
extra_pid = strtol(getenv("EXTRA_VID"), NULL, 16);
|
|
if (getenv("EXTRA_PID"))
|
|
extra_type = atoi(getenv("EXTRA_TYPE"));
|
|
if (getenv("BACKEND"))
|
|
backend = find_backend(getenv("BACKEND"));
|
|
use_serno = getenv("DEVICE");
|
|
uri = getenv("DEVICE_URI"); /* For CUPS */
|
|
|
|
/* Try to ensure we have a sane backend for standalone mode.
|
|
CUPS mode uses 'uri' later on. */
|
|
if (!backend) {
|
|
char *ptr = strrchr(argv[0], '/');
|
|
if (ptr)
|
|
ptr++;
|
|
else
|
|
ptr = argv[0];
|
|
backend = find_backend(ptr);
|
|
}
|
|
|
|
/* Reset arg parsing */
|
|
optind = 1;
|
|
opterr = 0;
|
|
while ((i = getopt(argc, argv, "B:d:DGhP:S:T:V:")) >= 0) {
|
|
switch(i) {
|
|
case 'B':
|
|
backend = find_backend(optarg);
|
|
if (!backend) {
|
|
fprintf(stderr, "ERROR: Unknown backend '%s'\n", optarg);
|
|
}
|
|
break;
|
|
case 'd':
|
|
copies = atoi(optarg);
|
|
break;
|
|
case 'D':
|
|
dyesub_debug++;
|
|
break;
|
|
case 'G':
|
|
print_license_blurb();
|
|
exit(0);
|
|
case 'h':
|
|
print_help(argv[0], backend);
|
|
exit(0);
|
|
break;
|
|
case 'P':
|
|
extra_pid = strtol(optarg, NULL, 16);
|
|
break;
|
|
case 'S':
|
|
use_serno = optarg;
|
|
break;
|
|
case 'T':
|
|
extra_type = atoi(optarg);
|
|
break;
|
|
case 'V':
|
|
extra_pid = strtol(optarg, NULL, 16);
|
|
break;
|
|
case '?':
|
|
default: {
|
|
/* Check to see if it is claimed by the backend */
|
|
if (backend && backend->cmdline_arg) {
|
|
int keep = optind;
|
|
backend_cmd += backend->cmdline_arg(NULL, argc, argv);
|
|
optind = keep;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef LIBUSB_PRE_1_0_10
|
|
if (dyesub_debug) {
|
|
const struct libusb_version *ver;
|
|
ver = libusb_get_version();
|
|
DEBUG(" ** running with libusb %d.%d.%d%s (%d)\n",
|
|
ver->major, ver->minor, ver->micro, (ver->rc? ver->rc : ""), ver->nano );
|
|
}
|
|
#endif
|
|
|
|
/* Make sure a filename was specified */
|
|
if (!backend_cmd && (optind == argc || !argv[optind])) {
|
|
print_help(argv[0], backend);
|
|
exit(0);
|
|
}
|
|
|
|
/* Are we running as a CUPS backend? */
|
|
if (uri) {
|
|
int base = optind; // XXX aka 1.
|
|
fname = argv[base + 5];
|
|
if (argv[base])
|
|
jobid = atoi(argv[base]);
|
|
if (argv[base + 3])
|
|
copies = atoi(argv[base + 3]);
|
|
if (fname) { /* IOW, is it specified? */
|
|
data_fd = open(fname, O_RDONLY);
|
|
if (data_fd < 0) {
|
|
perror("ERROR:Can't open input file");
|
|
exit(1);
|
|
}
|
|
} else {
|
|
fname = "-";
|
|
}
|
|
|
|
/* Ensure we're using BLOCKING I/O */
|
|
i = fcntl(data_fd, F_GETFL, 0);
|
|
if (i < 0) {
|
|
perror("ERROR:Can't open input");
|
|
exit(1);
|
|
}
|
|
i &= ~O_NONBLOCK;
|
|
i = fcntl(data_fd, F_SETFL, 0);
|
|
if (i < 0) {
|
|
perror("ERROR:Can't open input");
|
|
exit(1);
|
|
}
|
|
|
|
/* Figure out backend based on URI */
|
|
{
|
|
char *ptr = strstr (uri, "backend="), *ptr2;
|
|
if (!ptr) {
|
|
ERROR("Invalid URI prefix (%s)\n", uri);
|
|
exit(1);
|
|
}
|
|
ptr += 8;
|
|
ptr2 = strchr(ptr, '&');
|
|
if (ptr2)
|
|
*ptr2 = 0;
|
|
|
|
backend = find_backend(ptr);
|
|
if (!backend) {
|
|
ERROR("Invalid backend (%s)\n", ptr);
|
|
exit(1);
|
|
}
|
|
if (ptr2)
|
|
*ptr2 = '&';
|
|
}
|
|
|
|
use_serno = strchr(uri, '=');
|
|
if (!use_serno || !*(use_serno+1)) {
|
|
ERROR("Invalid URI (%s)\n", uri);
|
|
exit(1);
|
|
}
|
|
use_serno++;
|
|
{
|
|
char *ptr = strchr(use_serno, '&');
|
|
if (ptr)
|
|
*ptr = 0;
|
|
}
|
|
} else {
|
|
srand(getpid());
|
|
jobid = rand();
|
|
|
|
/* Grab the filename */
|
|
fname = argv[optind];
|
|
|
|
if (!fname && !backend_cmd) {
|
|
perror("ERROR:No input file");
|
|
exit(1);
|
|
}
|
|
if (fname) {
|
|
/* Open Input File */
|
|
if (strcmp("-", fname)) {
|
|
data_fd = open(fname, O_RDONLY);
|
|
if (data_fd < 0) {
|
|
perror("ERROR:Can't open input file");
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Ignore SIGPIPE */
|
|
signal(SIGPIPE, SIG_IGN);
|
|
signal(SIGTERM, sigterm_handler);
|
|
|
|
/* Initialize backend */
|
|
DEBUG("Initializing '%s' backend (version %s)\n",
|
|
backend->name, backend->version);
|
|
backend_ctx = backend->init();
|
|
|
|
/* Parse printjob if necessary */
|
|
if (fname && backend->early_parse) {
|
|
printer_type = backend->early_parse(backend_ctx, data_fd);
|
|
if (printer_type < 0) {
|
|
ret = CUPS_BACKEND_CANCEL;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* Libusb setup */
|
|
ret = libusb_init(&ctx);
|
|
if (ret) {
|
|
ERROR("Failed to initialize libusb (%d)\n", ret);
|
|
ret = CUPS_BACKEND_STOP;
|
|
goto done;
|
|
}
|
|
|
|
/* Enumerate devices */
|
|
found = find_and_enumerate(ctx, &list, backend, use_serno, printer_type, 0);
|
|
|
|
#if 1
|
|
if (found == -1) {
|
|
ERROR("Printer open failure (No suitable printers found!)\n");
|
|
ret = CUPS_BACKEND_HOLD;
|
|
goto done;
|
|
}
|
|
|
|
ret = libusb_open(list[found], &dev);
|
|
if (ret) {
|
|
ERROR("Printer open failure (Need to be root?) (%d)\n", ret);
|
|
ret = CUPS_BACKEND_STOP;
|
|
goto done;
|
|
}
|
|
|
|
claimed = libusb_kernel_driver_active(dev, iface);
|
|
if (claimed) {
|
|
ret = libusb_detach_kernel_driver(dev, iface);
|
|
if (ret) {
|
|
ERROR("Printer open failure (Could not detach printer from kernel) (%d)\n", ret);
|
|
ret = CUPS_BACKEND_STOP;
|
|
goto done_close;
|
|
}
|
|
}
|
|
|
|
ret = libusb_claim_interface(dev, iface);
|
|
if (ret) {
|
|
ERROR("Printer open failure (Could not claim printer interface) (%d)\n", ret);
|
|
ret = CUPS_BACKEND_STOP;
|
|
goto done_close;
|
|
}
|
|
|
|
ret = libusb_get_active_config_descriptor(list[found], &config);
|
|
if (ret) {
|
|
ERROR("Printer open failure (Could not fetch config descriptor) (%d)\n", ret);
|
|
ret = CUPS_BACKEND_STOP;
|
|
goto done_close;
|
|
}
|
|
|
|
for (i = 0 ; i < config->interface[0].altsetting[0].bNumEndpoints ; i++) {
|
|
if ((config->interface[0].altsetting[0].endpoint[i].bmAttributes & 3) == LIBUSB_TRANSFER_TYPE_BULK) {
|
|
if (config->interface[0].altsetting[0].endpoint[i].bEndpointAddress & LIBUSB_ENDPOINT_IN)
|
|
endp_up = config->interface[0].altsetting[0].endpoint[i].bEndpointAddress;
|
|
else
|
|
endp_down = config->interface[0].altsetting[0].endpoint[i].bEndpointAddress;
|
|
}
|
|
}
|
|
#endif
|
|
/* Attach backend to device */
|
|
backend->attach(backend_ctx, dev, endp_up, endp_down, jobid);
|
|
|
|
if (backend_cmd && !uri) {
|
|
if (backend->cmdline_arg(backend_ctx, argc, argv))
|
|
goto done_claimed;
|
|
if (!fname)
|
|
goto done_claimed;
|
|
}
|
|
|
|
/* Time for the main processing loop */
|
|
INFO("Printing started (%d copies)\n", copies);
|
|
|
|
newpage:
|
|
/* Do early parsing if needed for subsequent pages */
|
|
if (pages && backend->early_parse &&
|
|
backend->early_parse(backend_ctx, data_fd) < 0)
|
|
goto done_multiple;
|
|
|
|
/* Read in data */
|
|
if ((ret = backend->read_parse(backend_ctx, data_fd))) {
|
|
if (pages)
|
|
goto done_multiple;
|
|
else
|
|
goto done_claimed;
|
|
}
|
|
|
|
INFO("Printing page %d\n", ++pages);
|
|
|
|
ret = backend->main_loop(backend_ctx, copies);
|
|
if (ret)
|
|
goto done_claimed;
|
|
|
|
/* Since we have no way of telling if there's more data remaining
|
|
to be read (without actually trying to read it), always assume
|
|
multiple print jobs. */
|
|
goto newpage;
|
|
|
|
done_multiple:
|
|
close(data_fd);
|
|
|
|
/* Done printing */
|
|
INFO("All printing done (%d pages * %d copies)\n", pages, copies);
|
|
ret = CUPS_BACKEND_OK;
|
|
|
|
done_claimed:
|
|
libusb_release_interface(dev, iface);
|
|
|
|
done_close:
|
|
#if 0
|
|
if (claimed)
|
|
libusb_attach_kernel_driver(dev, iface);
|
|
#endif
|
|
libusb_close(dev);
|
|
done:
|
|
|
|
if (backend && backend_ctx)
|
|
backend->teardown(backend_ctx);
|
|
|
|
if (list)
|
|
libusb_free_device_list(list, 1);
|
|
if (ctx)
|
|
libusb_exit(ctx);
|
|
|
|
return ret;
|
|
}
|
|
|