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	#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	PARALLEL_DEVICE *
16	get_parallel_data(HANDLE handle)
17	{
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	toupper_str(g_rdpdr_device[*id].name);
53
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	};