int /* O - Exit status */
main(int argc, /* I - Number of command-line args */
char *argv[]) /* I - Command-line arguments */
{
int i, /* Looping var */
fd; /* File descriptor */
char device_id[1024], /* 1284 device ID string */
make_model[1024], /* make-and-model string */
uri[1024]; /* URI string */
if (argc < 2)
{
puts("Usage: test1284 device-file [... device-file-N]");
exit(1);
}
for (i = 1; i < argc; i ++)
{
if ((fd = open(argv[i], O_RDWR)) < 0)
{
perror(argv[i]);
return (errno);
}
printf("%s:\n", argv[i]);
backendGetDeviceID(fd, device_id, sizeof(device_id), make_model,
sizeof(make_model), "test", uri, sizeof(uri));
printf(" device_id=\"%s\"\n", device_id);
printf(" make_model=\"%s\"\n", make_model);
printf(" uri=\"%s\"\n", uri);
close(fd);
}
return (0);
}
static int /* O - File descriptor or -1 on error */
open_device(const char *uri, /* I - Device URI */
int *use_bc) /* O - Set to 0 for unidirectional */
{
int fd; /* File descriptor */
/*
* 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.
*/
if (!strncmp(uri, "usb:/dev/", 9))
#ifdef __linux
{
/*
* Do not allow direct devices anymore...
*/
errno = ENODEV;
return (-1);
}
else if (!strncmp(uri, "usb://", 6))
{
/*
* For Linux, try looking up the device serial number or model...
*/
int i; /* Looping var */
int busy; /* Are any ports busy? */
char device[255], /* Device filename */
device_id[1024], /* Device ID string */
make_model[1024], /* Make and model */
device_uri[1024]; /* Device URI string */
/*
* Find the correct USB device...
*/
for (;;)
{
for (busy = 0, i = 0; i < 16; i ++)
{
/*
* Linux has a long history of changing the standard filenames used
* for USB printer devices. We get the honor of trying them all...
*/
sprintf(device, "/dev/usblp%d", i);
if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT)
{
sprintf(device, "/dev/usb/lp%d", i);
if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT)
{
sprintf(device, "/dev/usb/usblp%d", i);
if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT)
continue;
}
}
if (fd >= 0)
{
backendGetDeviceID(fd, device_id, sizeof(device_id),
make_model, sizeof(make_model),
"usb", device_uri, sizeof(device_uri));
}
else
{
/*
* If the open failed because it was busy, flag it so we retry
* as needed...
*/
if (errno == EBUSY)
busy = 1;
device_uri[0] = '\0';
}
if (!strcmp(uri, device_uri))
{
/*
* Yes, return this file descriptor...
*/
fprintf(stderr, "DEBUG: Printer using device file \"%s\"...\n",
device);
return (fd);
}
/*
* This wasn't the one...
*/
if (fd >= 0)
close(fd);
}
/*
* If we get here and at least one of the printer ports showed up
* as "busy", then sleep for a bit and retry...
*/
if (busy)
_cupsLangPuts(stderr,
_("INFO: Printer busy; will retry in 5 seconds...\n"));
sleep(5);
}
}
#elif defined(__sun) && defined(ECPPIOC_GETDEVID)
{
/*
* Do not allow direct devices anymore...
*/
errno = ENODEV;
return (-1);
}
else if (!strncmp(uri, "usb://", 6))
void
list_devices(void)
{
#ifdef __linux
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 */
/*
* Try to open each USB device...
*/
for (i = 0; i < 16; i ++)
{
/*
* Linux has a long history of changing the standard filenames used
* for USB printer devices. We get the honor of trying them all...
*/
sprintf(device, "/dev/usblp%d", i);
if ((fd = open(device, O_RDWR | O_EXCL)) < 0)
{
if (errno != ENOENT)
continue;
sprintf(device, "/dev/usb/lp%d", i);
if ((fd = open(device, O_RDWR | O_EXCL)) < 0)
{
if (errno != ENOENT)
continue;
sprintf(device, "/dev/usb/usblp%d", i);
if ((fd = open(device, O_RDWR | O_EXCL)) < 0)
continue;
}
}
if (!backendGetDeviceID(fd, device_id, sizeof(device_id),
make_model, sizeof(make_model),
"usb", device_uri, sizeof(device_uri)))
printf("direct %s \"%s\" \"%s USB #%d\" \"%s\"\n", device_uri,
make_model, make_model, i + 1, device_id);
close(fd);
}
#elif defined(__sgi)
#elif defined(__sun) && defined(ECPPIOC_GETDEVID)
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 */
/*
* Open each USB device...
*/
for (i = 0; i < 8; i ++)
{
sprintf(device, "/dev/usb/printer%d", i);
if ((fd = open(device, O_WRONLY | O_EXCL)) >= 0)
{
if (!backendGetDeviceID(fd, device_id, sizeof(device_id),
make_model, sizeof(make_model),
"usb", device_uri, sizeof(device_uri)))
printf("direct %s \"%s\" \"%s USB #%d\" \"%s\"\n", device_uri,
make_model, make_model, i + 1, device_id);
close(fd);
}
}
#elif defined(__hpux)
#elif defined(__osf)
#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
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
}
