210 lines
9.1 KiB
C
210 lines
9.1 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* FreeRDP Interface
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*
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* Copyright 2009-2011 Jay Sorg
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FREERDP_H
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#define FREERDP_H
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typedef struct rdp_rdp rdpRdp;
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typedef struct rdp_gdi rdpGdi;
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typedef struct rdp_rail rdpRail;
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typedef struct rdp_cache rdpCache;
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typedef struct rdp_channels rdpChannels;
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typedef struct rdp_graphics rdpGraphics;
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typedef struct rdp_freerdp freerdp;
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typedef struct rdp_context rdpContext;
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typedef struct rdp_freerdp_peer freerdp_peer;
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#include <freerdp/api.h>
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#include <freerdp/types.h>
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#include <freerdp/error.h>
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#include <freerdp/settings.h>
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#include <freerdp/extension.h>
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#include <freerdp/utils/stream.h>
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#include <freerdp/input.h>
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#include <freerdp/update.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void (*pContextNew)(freerdp* instance, rdpContext* context);
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typedef void (*pContextFree)(freerdp* instance, rdpContext* context);
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typedef BOOL (*pPreConnect)(freerdp* instance);
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typedef BOOL (*pPostConnect)(freerdp* instance);
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typedef BOOL (*pAuthenticate)(freerdp* instance, char** username, char** password, char** domain);
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typedef BOOL (*pVerifyCertificate)(freerdp* instance, char* subject, char* issuer, char* fingerprint);
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typedef BOOL (*pVerifyChangedCertificate)(freerdp* instance, char* subject, char* issuer, char* new_fingerprint, char* old_fingerprint);
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typedef int (*pSendChannelData)(freerdp* instance, int channelId, BYTE* data, int size);
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typedef int (*pReceiveChannelData)(freerdp* instance, int channelId, BYTE* data, int size, int flags, int total_size);
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/**
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* Defines the context for a given instance of RDP connection.
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* It is embedded in the rdp_freerdp structure, and allocated by a call to freerdp_context_new().
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* It is deallocated by a call to freerdp_context_free().
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*/
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struct rdp_context
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{
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freerdp* instance; /**< (offset 0)
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Pointer to a rdp_freerdp structure.
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This is a back-link to retrieve the freerdp instance from the context.
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It is set by the freerdp_context_new() function */
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freerdp_peer* peer; /**< (offset 1)
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Pointer to the client peer.
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This is set by a call to freerdp_peer_context_new() during peer initialization.
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This field is used only on the server side. */
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UINT32 paddingA[16 - 2]; /* 2 */
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int argc; /**< (offset 16)
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Number of arguments given to the program at launch time.
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Used to keep this data available and used later on, typically just before connection initialization.
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@see freerdp_parse_args() */
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char** argv; /**< (offset 17)
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List of arguments given to the program at launch time.
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Used to keep this data available and used later on, typically just before connection initialization.
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@see freerdp_parse_args() */
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UINT32 paddingB[32 - 18]; /* 18 */
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rdpRdp* rdp; /**< (offset 32)
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Pointer to a rdp_rdp structure used to keep the connection's parameters.
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It is allocated by freerdp_context_new() and deallocated by freerdp_context_free(), at the same
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time that this rdp_context structure - there is no need to specifically allocate/deallocate this. */
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rdpGdi* gdi; /**< (offset 33)
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Pointer to a rdp_gdi structure used to keep the gdi settings.
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It is allocated by gdi_init() and deallocated by gdi_free().
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It must be deallocated before deallocating this rdp_context structure. */
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rdpRail* rail; /* 34 */
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rdpCache* cache; /* 35 */
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rdpChannels* channels; /* 36 */
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rdpGraphics* graphics; /* 37 */
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rdpInput* input; /* 38 */
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rdpUpdate* update; /* 39 */
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rdpSettings* settings; /* 40 */
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UINT32 paddingC[64 - 41]; /* 41 */
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};
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/** Defines the options for a given instance of RDP connection.
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* This is built by the client and given to the FreeRDP library to create the connection
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* with the expected options.
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* It is allocated by a call to freerdp_new() and deallocated by a call to freerdp_free().
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* Some of its content need specific allocation/deallocation - see field description for details.
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*/
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struct rdp_freerdp
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{
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rdpContext* context; /**< (offset 0)
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Pointer to a rdpContext structure.
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Client applications can use the context_size field to register a context bigger than the rdpContext
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structure. This allow clients to use additional context information.
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When using this capability, client application should ALWAYS declare their structure with the
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rdpContext field first, and any additional content following it.
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Can be allocated by a call to freerdp_context_new().
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Must be dealocated by a call to freerdp_context_free() before deallocating the current instance. */
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UINT32 paddingA[16 - 1]; /* 1 */
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rdpInput* input; /* (offset 16)
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Input handle for the connection.
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Will be initialized by a call to freerdp_context_new() */
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rdpUpdate* update; /* (offset 17)
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Update display parameters. Used to register display events callbacks and settings.
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Will be initialized by a call to freerdp_context_new() */
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rdpSettings* settings; /**< (offset 18)
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Pointer to a rdpSettings structure. Will be used to maintain the required RDP settings.
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Will be initialized by a call to freerdp_context_new() */
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UINT32 paddingB[32 - 19]; /* 19 */
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size_t context_size; /* (offset 32)
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Specifies the size of the 'context' field. freerdp_context_new() will use this size to allocate the context buffer.
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freerdp_new() sets it to sizeof(rdpContext).
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If modifying it, there should always be a minimum of sizeof(rdpContext), as the freerdp library will assume it can use the
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'context' field to set the required informations in it.
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Clients will typically make it bigger, and use a context structure embedding the rdpContext, and
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adding additional information after that.
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*/
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pContextNew ContextNew; /**< (offset 33)
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Callback for context allocation
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Can be set before calling freerdp_context_new() to have it executed after allocation and initialization.
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Must be set to NULL if not needed. */
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pContextFree ContextFree; /**< (offset 34)
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Callback for context deallocation
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Can be set before calling freerdp_context_free() to have it executed before deallocation.
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Must be set to NULL if not needed. */
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UINT32 paddingC[48 - 35]; /* 35 */
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pPreConnect PreConnect; /**< (offset 48)
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Callback for pre-connect operations.
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Can be set before calling freerdp_connect() to have it executed before the actual connection happens.
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Must be set to NULL if not needed. */
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pPostConnect PostConnect; /**< (offset 49)
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Callback for post-connect operations.
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Can be set before calling freerdp_connect() to have it executed after the actual connection has succeeded.
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Must be set to NULL if not needed. */
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pAuthenticate Authenticate; /**< (offset 50)
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Callback for authentication.
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It is used to get the username/password when it was not provided at connection time. */
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pVerifyCertificate VerifyCertificate; /**< (offset 51)
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Callback for certificate validation.
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Used to verify that an unknown certificate is trusted. */
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pVerifyChangedCertificate VerifyChangedCertificate; /**< (offset 52)
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Callback for changed certificate validation.
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Used when a certificate differs from stored fingerprint.
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If returns TRUE, the new fingerprint will be trusted and old thrown out. */
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UINT32 paddingD[64 - 51]; /* 51 */
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pSendChannelData SendChannelData; /* (offset 64)
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Callback for sending data to a channel.
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By default, it is set by freerdp_new() to freerdp_send_channel_data(), which eventually calls
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freerdp_channel_send() */
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pReceiveChannelData ReceiveChannelData; /* (offset 65)
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Callback for receiving data from a channel.
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This is called by freerdp_channel_process() (if not NULL).
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Clients will typically use a function that calls freerdp_channels_data() to perform the needed tasks. */
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UINT32 paddingE[80 - 66]; /* 66 */
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};
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FREERDP_API void freerdp_context_new(freerdp* instance);
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FREERDP_API void freerdp_context_free(freerdp* instance);
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FREERDP_API BOOL freerdp_connect(freerdp* instance);
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FREERDP_API BOOL freerdp_shall_disconnect(freerdp* instance);
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FREERDP_API BOOL freerdp_disconnect(freerdp* instance);
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FREERDP_API BOOL freerdp_get_fds(freerdp* instance, void** rfds, int* rcount, void** wfds, int* wcount);
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FREERDP_API BOOL freerdp_check_fds(freerdp* instance);
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FREERDP_API UINT32 freerdp_error_info(freerdp* instance);
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FREERDP_API void freerdp_get_version(int* major, int* minor, int* revision);
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FREERDP_API freerdp* freerdp_new();
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FREERDP_API void freerdp_free(freerdp* instance);
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#ifdef __cplusplus
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}
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#endif
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#endif /* FREERDP_H */
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