136 lines
3.6 KiB
Diff
136 lines
3.6 KiB
Diff
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diff -up cups-1.3.3/backend/ieee1284.c.parallel-id cups-1.3.3/backend/ieee1284.c
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--- cups-1.3.3/backend/ieee1284.c.parallel-id 2007-07-11 22:46:42.000000000 +0100
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+++ cups-1.3.3/backend/ieee1284.c 2007-10-10 12:15:21.000000000 +0100
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@@ -32,6 +32,10 @@
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# include <linux/lp.h>
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# define IOCNR_GET_DEVICE_ID 1
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# define LPIOC_GET_DEVICE_ID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_DEVICE_ID, len)
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+# include <linux/parport.h>
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+# include <linux/ppdev.h>
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+# include <unistd.h>
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+# include <fcntl.h>
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#endif /* __linux */
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#ifdef __sun
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@@ -68,6 +72,7 @@ backendGetDeviceID(
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int manulen; /* Length of manufacturer string */
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#ifdef __linux
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int length; /* Length of device ID info */
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+ int got_id = 0;
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#endif /* __linux */
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#if defined(__sun) && defined(ECPPIOC_GETDEVID)
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struct ecpp_device_id did; /* Device ID buffer */
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@@ -93,9 +98,6 @@ backendGetDeviceID(
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if (make_model)
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*make_model = '\0';
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- if (uri)
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- *uri = '\0';
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-
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if (fd >= 0)
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{
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/*
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@@ -105,7 +107,74 @@ backendGetDeviceID(
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*device_id = '\0';
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#ifdef __linux
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- if (!ioctl(fd, LPIOC_GET_DEVICE_ID(device_id_size), device_id))
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+ if (ioctl(fd, LPIOC_GET_DEVICE_ID(device_id_size), device_id))
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+ {
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+# ifdef DEBUG
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+ printf("backendGetDeviceID: ioctl failed - %s\n", strerror(errno));
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+# endif /* DEBUG */
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+
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+ if (!strcmp (scheme, "parallel") &&
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+ uri && !strncmp (uri, "parallel:/dev/", 14))
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+ {
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+ const char *n;
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+ char devparport[16];
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+ int devparportfd;
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+ n = uri + strcspn (uri, "0123456789");
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+ strcpy (devparport, "/dev/parport");
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+ strncpy (devparport + 12, n, 3);
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+ devparport[15] = '\0';
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+ devparportfd = open (devparport, O_RDWR | O_NOCTTY);
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+ if (devparportfd != -1)
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+ {
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+ /* Put the device into Device ID mode */
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+ int err = ioctl (devparportfd, PPCLAIM);
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+ int m = IEEE1284_MODE_COMPAT;
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+
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+ if (err)
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+ {
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+ close (devparportfd);
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+ devparportfd = -1;
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+ }
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+
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+ if (!err)
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+ err = ioctl (devparportfd, PPNEGOT, &m);
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+
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+ if (!err)
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+ {
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+ m = IEEE1284_MODE_NIBBLE | IEEE1284_DEVICEID;
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+ err = ioctl (devparportfd, PPNEGOT, &m);
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+ }
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+
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+ /* Make the file descriptor non-blocking to guard against
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+ * bugs in the device. */
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+ if (!err)
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+ {
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+ int f = fcntl (devparportfd, F_GETFL);
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+ f |= O_NONBLOCK;
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+ err = fcntl (devparportfd, F_SETFL, f);
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+ }
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+
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+ /* Read the ID */
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+ if (!err)
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+ {
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+ if (read (devparportfd, device_id, device_id_size) < 2)
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+ err = 1;
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+ else
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+ got_id = 1;
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+ }
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+
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+ if (devparportfd > -1)
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+ {
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+ ioctl (devparportfd, PPRELEASE);
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+ close (devparportfd);
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+ }
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+ }
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+ }
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+ }
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+ else
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+ got_id = 1;
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+
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+ if (got_id)
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{
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/*
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* Extract the length of the device ID string from the first two
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@@ -168,6 +237,9 @@ backendGetDeviceID(
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DEBUG_printf(("backendGetDeviceID: device_id=\"%s\"\n", device_id));
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+ if (uri)
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+ *uri = '\0';
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+
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if (!*device_id)
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return (-1);
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diff -up cups-1.3.3/backend/parallel.c.parallel-id cups-1.3.3/backend/parallel.c
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--- cups-1.3.3/backend/parallel.c.parallel-id 2007-08-22 19:34:34.000000000 +0100
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+++ cups-1.3.3/backend/parallel.c 2007-10-10 12:14:23.000000000 +0100
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@@ -350,9 +350,12 @@ list_devices(void)
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* Now grab the IEEE 1284 device ID string...
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*/
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+ char device_uri[255 + 9];
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+ strcpy (device_uri, "parallel:");
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+ strcpy (device_uri + 9, device);
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if (!backendGetDeviceID(fd, device_id, sizeof(device_id),
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make_model, sizeof(make_model),
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- NULL, NULL, 0))
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+ "parallel", device_uri, sizeof (device_uri)))
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printf("direct parallel:%s \"%s\" \"%s LPT #%d\" \"%s\"\n", device,
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make_model, make_model, i + 1, device_id);
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else
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