]>
git.ipfire.org Git - thirdparty/cups.git/blob - backend/scsi-irix.c
2 * "$Id: scsi-irix.c 6834 2007-08-22 18:29:25Z mike $"
4 * IRIX SCSI printer support for the Common UNIX Printing System (CUPS).
6 * Copyright 2007 by Apple Inc.
7 * Copyright 2003-2005 by Easy Software Products, all rights reserved.
9 * Redistribution and use in source and binary forms, with or
10 * without modification, are permitted provided that the
11 * following conditions are met:
13 * 1. Redistributions of source code must retain the above
14 * copyright notice, this list of conditions and the
15 * following disclaimer.
17 * 2. Redistributions in binary form must reproduce the
18 * above copyright notice, this list of conditions and
19 * the following disclaimer in the documentation and/or
20 * other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use
23 * of this software must display the following
26 * This product includes software developed by Easy
29 * 4. The name of Easy Software Products may not be used to
30 * endorse or promote products derived from this software
31 * without specific prior written permission.
33 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS
34 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
35 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
36 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
37 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
38 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
39 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
40 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
41 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
42 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
43 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
44 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
45 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
50 * list_devices() - List the available SCSI printer devices.
51 * print_device() - Print a file to a SCSI device.
55 * Include necessary headers.
58 #include <bstring.h> /* memcpy() and friends */
59 #include <sys/dsreq.h> /* SCSI interface stuff */
63 * 'list_devices()' - List the available SCSI printer devices.
69 printf("direct scsi \"Unknown\" \"%s\"\n",
70 _cupsLangString(cupsLangDefault(), _("SCSI Printer")));
75 * 'print_device()' - Print a file to a SCSI device.
78 int /* O - Print status */
79 print_device(const char *resource
, /* I - SCSI device */
80 int fd
, /* I - File to print */
81 int copies
) /* I - Number of copies to print */
83 int scsi_fd
; /* SCSI file descriptor */
84 char buffer
[8192]; /* Data buffer */
85 int bytes
; /* Number of bytes */
86 int try; /* Current try */
87 dsreq_t scsi_req
; /* SCSI request */
88 char scsi_cmd
[6]; /* SCSI command data */
89 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
90 struct sigaction action
; /* Actions for POSIX signals */
91 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
95 * Make sure we have a valid resource name...
98 if (strncmp(resource
, "/dev/scsi/", 10) != 0)
100 _cupsLangPrintf(stderr
, _("ERROR: Bad SCSI device file \"%s\"!\n"),
102 return (CUPS_BACKEND_STOP
);
106 * Open the SCSI device file...
109 fputs("STATE: +connecting-to-device\n", stderr
);
113 if ((scsi_fd
= open(resource
, O_RDWR
| O_EXCL
)) == -1)
115 if (getenv("CLASS") != NULL
)
118 * If the CLASS environment variable is set, the job was submitted
119 * to a class and not to a specific queue. In this case, we want
120 * to abort immediately so that the job can be requeued on the next
121 * available printer in the class.
124 _cupsLangPuts(stderr
,
125 _("INFO: Unable to contact printer, queuing on next "
126 "printer in class...\n"));
129 * Sleep 5 seconds to keep the job from requeuing too rapidly...
137 if (errno
!= EAGAIN
&& errno
!= EBUSY
)
139 _cupsLangPrintf(stderr
,
140 _("ERROR: Unable to open device file \"%s\": %s\n"),
141 resource
, strerror(errno
));
142 return (CUPS_BACKEND_FAILED
);
146 _cupsLangPuts(stderr
,
147 _("INFO: Printer busy; will retry in 30 seconds...\n"));
152 while (scsi_fd
== -1);
154 fputs("STATE: -connecting-to-device\n", stderr
);
157 * Now that we are "connected" to the port, ignore SIGTERM so that we
158 * can finish out any page data the driver sends (e.g. to eject the
159 * current page... Only ignore SIGTERM if we are printing data from
160 * stdin (otherwise you can't cancel raw jobs...)
165 #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
166 sigset(SIGTERM
, SIG_IGN
);
167 #elif defined(HAVE_SIGACTION)
168 memset(&action
, 0, sizeof(action
));
170 sigemptyset(&action
.sa_mask
);
171 action
.sa_handler
= SIG_IGN
;
172 sigaction(SIGTERM
, &action
, NULL
);
174 signal(SIGTERM
, SIG_IGN
);
175 #endif /* HAVE_SIGSET */
179 * Copy the print file to the device...
185 lseek(fd
, 0, SEEK_SET
);
187 while ((bytes
= read(fd
, buffer
, sizeof(buffer
))) > 0)
189 memset(&scsi_req
, 0, sizeof(scsi_req
));
191 scsi_req
.ds_flags
= DSRQ_WRITE
;
192 scsi_req
.ds_time
= 60 * 1000;
193 scsi_req
.ds_cmdbuf
= scsi_cmd
;
194 scsi_req
.ds_cmdlen
= 6;
195 scsi_req
.ds_databuf
= buffer
;
196 scsi_req
.ds_datalen
= bytes
;
198 scsi_cmd
[0] = 0x0a; /* Group 0 print command */
200 scsi_cmd
[2] = bytes
/ 65536;
201 scsi_cmd
[3] = bytes
/ 256;
205 for (try = 0; try < 10; try ++)
206 if (ioctl(scsi_fd
, DS_ENTER
, &scsi_req
) < 0 ||
207 scsi_req
.ds_status
!= 0)
209 _cupsLangPrintf(stderr
,
210 _("WARNING: SCSI command timed out (%d); "
211 "retrying...\n"), scsi_req
.ds_status
);
219 _cupsLangPrintf(stderr
, _("ERROR: Unable to send print data (%d)\n"),
222 return (CUPS_BACKEND_FAILED
);
230 * Close the device and return...
235 return (CUPS_BACKEND_OK
);
240 * End of "$Id: scsi-irix.c 6834 2007-08-22 18:29:25Z mike $".