trunk/rdesktop/parallel.c

#define MAX_PARALLEL_DEVICES            1

#define FILE_DEVICE_PARALLEL            0x22

#define IOCTL_PAR_QUERY_RAW_DEVICE_ID   0x0c

#define PARALLELDEV0                    "/dev/lp0"

#include "rdesktop.h"
#include <unistd.h>
#include <fcntl.h>

extern RDPDR_DEVICE g_rdpdr_device[];

PARALLEL_DEVICE *
get_parallel_data(HANDLE handle)
{
        int index;

        for (index = 0; index < RDPDR_MAX_DEVICES; index++)
        {
                if (handle == g_rdpdr_device[index].handle)
                        return (PARALLEL_DEVICE *) g_rdpdr_device[index].pdevice_data;
        }
        return NULL;
}


/* Enumeration of devices from rdesktop.c        */
/* returns numer of units found and initialized. */
/* optarg looks like ':LPT1=/dev/lp0'            */
/* when it arrives to this function.             */
int
parallel_enum_devices(int *id, char *optarg)
{
        //TODO: Read from configuration file? CUPS?
        PARALLEL_DEVICE *ppar_info;

        char *pos = optarg;
        char *pos2;
        int count = 0;

        // skip the first colon
        optarg++;
        while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
        {
                ppar_info = (PARALLEL_DEVICE *) xmalloc(sizeof(PARALLEL_DEVICE));

                pos2 = next_arg(optarg, '=');
                strcpy(g_rdpdr_device[*id].name, optarg);

                toupper_str(g_rdpdr_device[*id].name);

                g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
                strcpy(g_rdpdr_device[*id].local_path, pos2);
                printf("PARALLEL %s to %s\n", optarg, pos2);

                // set device type
                g_rdpdr_device[*id].device_type = DEVICE_TYPE_PARALLEL;
                g_rdpdr_device[*id].pdevice_data = (void *) ppar_info;
                count++;
                (*id)++;

                optarg = pos;
        }
        return count;
}

static NTSTATUS
parallel_create(uint32 device_id, HANDLE * handle)
{
        int parallel_fd;

        parallel_fd = open(PARALLELDEV0, O_WRONLY);
        if (parallel_fd == -1)
                return STATUS_ACCESS_DENIED;

        *handle = parallel_fd;
        return STATUS_SUCCESS;
}

static NTSTATUS
parallel_close(HANDLE handle)
{
        close(handle);
        return STATUS_SUCCESS;
}

static NTSTATUS
parallel_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
{
        *result = write(handle, data, length);
        return STATUS_SUCCESS;
}

static NTSTATUS
parallel_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
{
        if ((request >> 16) != FILE_DEVICE_PARALLEL)
                return STATUS_INVALID_PARAMETER;

        /* extract operation */
        request >>= 2;
        request &= 0xfff;

        printf("PARALLEL IOCTL %d: ", request);

        switch (request)
        {
                case IOCTL_PAR_QUERY_RAW_DEVICE_ID:

                default:

                        printf("\n");
                        unimpl("UNKNOWN IOCTL %d\n", request);
        }
        return STATUS_SUCCESS;
}

DEVICE_FNS parallel_fns = {
        parallel_create,
        parallel_close,
        NULL,
        parallel_write,
        parallel_device_control
};
1	n-ki	569	#define MAX_PARALLEL_DEVICES 1
2
3			#define FILE_DEVICE_PARALLEL 0x22
4
5			#define IOCTL_PAR_QUERY_RAW_DEVICE_ID 0x0c
6
7			#define PARALLELDEV0 "/dev/lp0"
8
9			#include "rdesktop.h"
10			#include <unistd.h>
11			#include <fcntl.h>
12
13			extern RDPDR_DEVICE g_rdpdr_device[];
14
15	astrand	580	PARALLEL_DEVICE *
16			get_parallel_data(HANDLE handle)
17	n-ki	569	{
18			int index;
19
20			for (index = 0; index < RDPDR_MAX_DEVICES; index++)
21			{
22			if (handle == g_rdpdr_device[index].handle)
23			return (PARALLEL_DEVICE *) g_rdpdr_device[index].pdevice_data;
24			}
25			return NULL;
26			}
27
28
29			/* Enumeration of devices from rdesktop.c */
30			/* returns numer of units found and initialized. */
31			/* optarg looks like ':LPT1=/dev/lp0' */
32			/* when it arrives to this function. */
33			int
34			parallel_enum_devices(int id, char optarg)
35			{
36			//TODO: Read from configuration file? CUPS?
37			PARALLEL_DEVICE *ppar_info;
38
39			char *pos = optarg;
40			char *pos2;
41			int count = 0;
42
43			// skip the first colon
44			optarg++;
45			while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
46			{
47			ppar_info = (PARALLEL_DEVICE *) xmalloc(sizeof(PARALLEL_DEVICE));
48
49			pos2 = next_arg(optarg, '=');
50			strcpy(g_rdpdr_device[*id].name, optarg);
51
52	stargo	570	toupper_str(g_rdpdr_device[*id].name);
53	n-ki	569
54			g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
55			strcpy(g_rdpdr_device[*id].local_path, pos2);
56			printf("PARALLEL %s to %s\n", optarg, pos2);
57
58			// set device type
59			g_rdpdr_device[*id].device_type = DEVICE_TYPE_PARALLEL;
60			g_rdpdr_device[id].pdevice_data = (void ) ppar_info;
61			count++;
62			(*id)++;
63
64			optarg = pos;
65			}
66			return count;
67			}
68
69			static NTSTATUS
70			parallel_create(uint32 device_id, HANDLE * handle)
71			{
72			int parallel_fd;
73
74			parallel_fd = open(PARALLELDEV0, O_WRONLY);
75			if (parallel_fd == -1)
76			return STATUS_ACCESS_DENIED;
77
78			*handle = parallel_fd;
79			return STATUS_SUCCESS;
80			}
81
82			static NTSTATUS
83			parallel_close(HANDLE handle)
84			{
85			close(handle);
86			return STATUS_SUCCESS;
87			}
88
89			static NTSTATUS
90			parallel_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
91			{
92			*result = write(handle, data, length);
93			return STATUS_SUCCESS;
94			}
95
96			static NTSTATUS
97			parallel_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
98			{
99			if ((request >> 16) != FILE_DEVICE_PARALLEL)
100			return STATUS_INVALID_PARAMETER;
101
102			/* extract operation */
103			request >>= 2;
104			request &= 0xfff;
105
106			printf("PARALLEL IOCTL %d: ", request);
107
108			switch (request)
109			{
110			case IOCTL_PAR_QUERY_RAW_DEVICE_ID:
111
112			default:
113
114			printf("\n");
115			unimpl("UNKNOWN IOCTL %d\n", request);
116			}
117			return STATUS_SUCCESS;
118			}
119
120			DEVICE_FNS parallel_fns = {
121			parallel_create,
122			parallel_close,
123			NULL,
124			parallel_write,
125			parallel_device_control
126			};