| /* |
| * Dynamic wrapper for Bonjour SDK for Windows. |
| * |
| * Copyright 2018 by Apple Inc. |
| * |
| * Licensed under Apache License v2.0. See the file "LICENSE" for more |
| * information. |
| */ |
| |
| //#include <cups/http-private.h> |
| #include <cups/thread-private.h> |
| #include "dns_sd.h" |
| |
| |
| /* |
| * Pointers for functions... |
| */ |
| |
| static int dnssd_initialized = 0; |
| static _cups_mutex_t dnssd_mutex = _CUPS_MUTEX_INITIALIZER; |
| static DNSServiceErrorType (*dnssd_add_record)(DNSServiceRef sdRef, DNSRecordRef *RecordRef, DNSServiceFlags flags, uint16_t rrtype, uint16_t rdlen, const void *rdata, uint32_t ttl); |
| static DNSServiceErrorType (*dnssd_browse)(DNSServiceRef *sdRef, DNSServiceFlags flags, uint32_t interfaceIndex, const char *regtype, const char *domain, DNSServiceBrowseReply callBack, void *context); |
| static DNSServiceErrorType (*dnssd_construct_full_name)(char * const fullName, const char * const service, const char * const regtype, const char * const domain); |
| static DNSServiceErrorType (*dnssd_create_connection)(DNSServiceRef *sdRef); |
| static DNSServiceErrorType (*dnssd_process_result)(DNSServiceRef sdRef); |
| static DNSServiceErrorType (*dnssd_query_record)(DNSServiceRef *sdRef, DNSServiceFlags flags, uint32_t interfaceIndex, const char *fullname, uint16_t rrtype, uint16_t rrclass, DNSServiceQueryRecordReply callBack, void *context); |
| static void (*dnssd_deallocate)(DNSServiceRef sdRef); |
| static int (*dnssd_sock_fd)(DNSServiceRef sdRef); |
| static DNSServiceErrorType (*dnssd_register)(DNSServiceRef *sdRef, DNSServiceFlags flags, uint32_t interfaceIndex, const char *name, const char *regtype, const char *domain, const char *host, uint16_t port, uint16_t txtLen, const void *txtRecord, DNSServiceRegisterReply callBack, void *context); |
| static DNSServiceErrorType (*dnssd_remove_record)(DNSServiceRef sdRef, DNSRecordRef RecordRef, DNSServiceFlags flags); |
| static DNSServiceErrorType (*dnssd_resolve)(DNSServiceRef *sdRef, DNSServiceFlags flags, uint32_t interfaceIndex, const char *name, const char *regtype, const char *domain, DNSServiceResolveReply callBack, void *context); |
| static DNSServiceErrorType (*dnssd_update_record)(DNSServiceRef sdRef, DNSRecordRef RecordRef, DNSServiceFlags flags, uint16_t rdlen, const void *rdata, uint32_t ttl); |
| |
| static void (*dnssd_txt_create)(TXTRecordRef *txtRecord, uint16_t bufferLen, void *buffer); |
| static void (*dnssd_txt_deallocate)(TXTRecordRef *txtRecord); |
| static const void *(*dnssd_txt_get_bytes_ptr)(const TXTRecordRef *txtRecord); |
| static uint16_t (*dnssd_txt_get_count)(uint16_t txtLen, const void *txtRecord); |
| static uint16_t (*dnssd_txt_get_length)(const TXTRecordRef *txtRecord); |
| static DNSServiceErrorType (*dnssd_txt_get_item_at_index)(uint16_t txtLen, const void *txtRecord, uint16_t itemIndex, uint16_t keyBufLen, char *key, uint8_t *valueLen, const void **value); |
| static const void *(*dnssd_txt_get_value_ptr)(uint16_t txtLen, const void *txtRecord, const char *key, uint8_t *valueLen); |
| static DNSServiceErrorType (*dnssd_txt_set_value)(TXTRecordRef *txtRecord, const char *key, uint8_t valueSize, const void *value); |
| |
| |
| /* |
| * Function to initialize pointers... |
| */ |
| |
| static void |
| dnssd_init(void) |
| { |
| _cupsMutexLock(&dnssd_mutex); |
| if (!dnssd_initialized) |
| { |
| HINSTANCE dll_handle = LoadLibraryA("dnssd.dll"); |
| |
| if (dll_handle) |
| { |
| dnssd_add_record = (DNSServiceErrorType (*)(DNSServiceRef, DNSRecordRef *, DNSServiceFlags, uint16_t, uint16_t, const void *, uint32_t))GetProcAddress(dll_handle, "DNSServiceAddRecord"); |
| dnssd_browse = (DNSServiceErrorType(*)(DNSServiceRef *, DNSServiceFlags, uint32_t, const char *, const char *, DNSServiceBrowseReply, void *))GetProcAddress(dll_handle, "DNSServiceBrowse"); |
| dnssd_construct_full_name = (DNSServiceErrorType(*)(char * const, const char * const, const char * const, const char * const))GetProcAddress(dll_handle, "DNSServiceConstructFullName"); |
| dnssd_create_connection = (DNSServiceErrorType(*)(DNSServiceRef *))GetProcAddress(dll_handle, "DNSServiceCreateConnection"); |
| dnssd_deallocate = (DNSServiceErrorType(*)(DNSServiceRef))GetProcAddress(dll_handle, "DNSServiceRefDeallocate"); |
| dnssd_process_result = (DNSServiceErrorType(*)(DNSServiceRef))GetProcAddress(dll_handle, "DNSServiceProcessResult"); |
| dnssd_query_record = (DNSServiceErrorType(*)(DNSServiceRef *, DNSServiceFlags, uint32_t, const char *, uint16_t, uint16_t, DNSServiceQueryRecordReply, void *))GetProcAddress(dll_handle, "DNSServiceQueryRecord"); |
| dnssd_register = (DNSServiceErrorType(*)(DNSServiceRef *, DNSServiceFlags, uint32_t, const char *, const char *, const char *, const char *, uint16_t, uint16_t, const void *, DNSServiceRegisterReply, void *))GetProcAddress(dll_handle, "DNSServiceRegister"); |
| dnssd_remove_record = (DNSServiceErrorType(*)(DNSServiceRef, DNSRecordRef, DNSServiceFlags))GetProcAddress(dll_handle, "DNSServiceRemoveRecord"); |
| dnssd_resolve = (DNSServiceErrorType(*)(DNSServiceRef *, DNSServiceFlags, uint32_t, const char *, const char *, const char *, DNSServiceResolveReply, void *))GetProcAddress(dll_handle, "DNSServiceResolve"); |
| dnssd_sock_fd = (int(*)(DNSServiceRef))GetProcAddress(dll_handle, "DNSServiceRefSockFD"); |
| dnssd_update_record = (DNSServiceErrorType(*)(DNSServiceRef, DNSRecordRef, DNSServiceFlags, uint16_t, const void *, uint32_t))GetProcAddress(dll_handle, "DNSServiceUpdateRecord"); |
| |
| dnssd_txt_create = (void (*)(TXTRecordRef *, uint16_t, void *))GetProcAddress(dll_handle, "TXTRecordCreate"); |
| dnssd_txt_deallocate = (void (*)(TXTRecordRef *))GetProcAddress(dll_handle, "TXTRecordDeallocate"); |
| dnssd_txt_get_bytes_ptr = (const void *(*)(const TXTRecordRef *))GetProcAddress(dll_handle, "TXTRecordGetBytesPtr"); |
| dnssd_txt_get_count = (uint16_t (*)(uint16_t, const void *))GetProcAddress(dll_handle, "TXTRecordGetCount"); |
| dnssd_txt_get_item_at_index = (DNSServiceErrorType (*)(uint16_t, const void *, uint16_t, uint16_t, char *, uint8_t *, const void **))GetProcAddress(dll_handle, "TXTRecordGetItemAtIndex"); |
| dnssd_txt_get_length = (uint16_t (*)(const TXTRecordRef *))GetProcAddress(dll_handle, "TXTRecordGetLength"); |
| dnssd_txt_get_value_ptr = (const void *(*)(uint16_t, const void *, const char *, uint8_t *))GetProcAddress(dll_handle, "TXTRecordGetValuePtr"); |
| dnssd_txt_set_value = (DNSServiceErrorType (*)(TXTRecordRef *, const char *, uint8_t, const void *))GetProcAddress(dll_handle, "TXTRecordSetValue"); |
| } |
| |
| dnssd_initialized = 1; |
| } |
| _cupsMutexUnlock(&dnssd_mutex); |
| } |
| |
| |
| // DNSServiceAddRecord |
| DNSServiceErrorType DNSSD_API DNSServiceAddRecord |
| ( |
| DNSServiceRef sdRef, |
| DNSRecordRef *RecordRef, |
| DNSServiceFlags flags, |
| uint16_t rrtype, |
| uint16_t rdlen, |
| const void *rdata, |
| uint32_t ttl |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_add_record) |
| return (*dnssd_add_record)(sdRef, RecordRef, flags, rrtype, rdlen, rdata, ttl); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceBrowse |
| DNSServiceErrorType DNSSD_API DNSServiceBrowse |
| ( |
| DNSServiceRef *sdRef, |
| DNSServiceFlags flags, |
| uint32_t interfaceIndex, |
| const char *regtype, |
| const char *domain, /* may be NULL */ |
| DNSServiceBrowseReply callBack, |
| void *context /* may be NULL */ |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_browse) |
| return (*dnssd_browse)(sdRef, flags, interfaceIndex, regtype, domain, callBack, context); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceConstructFullName |
| DNSServiceErrorType DNSSD_API DNSServiceConstructFullName |
| ( |
| char * const fullName, |
| const char * const service, /* may be NULL */ |
| const char * const regtype, |
| const char * const domain |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_construct_full_name) |
| return (*dnssd_construct_full_name)(fullName, service, regtype, domain); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceCreateConnection |
| DNSServiceErrorType DNSSD_API DNSServiceCreateConnection(DNSServiceRef *sdRef) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_create_connection) |
| return (*dnssd_create_connection)(sdRef); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceProcessResult |
| DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdRef) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_process_result) |
| return (*dnssd_process_result)(sdRef); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceQueryRecord |
| DNSServiceErrorType DNSSD_API DNSServiceQueryRecord |
| ( |
| DNSServiceRef *sdRef, |
| DNSServiceFlags flags, |
| uint32_t interfaceIndex, |
| const char *fullname, |
| uint16_t rrtype, |
| uint16_t rrclass, |
| DNSServiceQueryRecordReply callBack, |
| void *context /* may be NULL */ |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_query_record) |
| return (*dnssd_query_record)(sdRef, flags, interfaceIndex, fullname, rrtype, rrclass, callBack, context); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceRefDeallocate |
| void DNSSD_API DNSServiceRefDeallocate(DNSServiceRef sdRef) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_deallocate) |
| (*dnssd_deallocate)(sdRef); |
| } |
| |
| |
| // DNSServiceRefSockFD |
| int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdRef) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_sock_fd) |
| return (*dnssd_sock_fd)(sdRef); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceRegister |
| DNSServiceErrorType DNSSD_API DNSServiceRegister |
| ( |
| DNSServiceRef *sdRef, |
| DNSServiceFlags flags, |
| uint32_t interfaceIndex, |
| const char *name, /* may be NULL */ |
| const char *regtype, |
| const char *domain, /* may be NULL */ |
| const char *host, /* may be NULL */ |
| uint16_t port, /* In network byte order */ |
| uint16_t txtLen, |
| const void *txtRecord, /* may be NULL */ |
| DNSServiceRegisterReply callBack, /* may be NULL */ |
| void *context /* may be NULL */ |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_register) |
| return (*dnssd_register)(sdRef, flags, interfaceIndex, name, regtype, domain, host, port, txtLen, txtRecord, callBack, context); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceRemoveRecord |
| DNSServiceErrorType DNSSD_API DNSServiceRemoveRecord |
| ( |
| DNSServiceRef sdRef, |
| DNSRecordRef RecordRef, |
| DNSServiceFlags flags |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_remove_record) |
| return (*dnssd_remove_record)(sdRef, RecordRef, flags); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceResolve |
| DNSServiceErrorType DNSSD_API DNSServiceResolve |
| ( |
| DNSServiceRef *sdRef, |
| DNSServiceFlags flags, |
| uint32_t interfaceIndex, |
| const char *name, |
| const char *regtype, |
| const char *domain, |
| DNSServiceResolveReply callBack, |
| void *context /* may be NULL */ |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_resolve) |
| return (*dnssd_resolve)(sdRef, flags, interfaceIndex, name, regtype, domain, callBack, context); |
| else |
| return (-1); |
| } |
| |
| |
| // DNSServiceUpdateRecord |
| DNSServiceErrorType DNSSD_API DNSServiceUpdateRecord |
| ( |
| DNSServiceRef sdRef, |
| DNSRecordRef RecordRef, /* may be NULL */ |
| DNSServiceFlags flags, |
| uint16_t rdlen, |
| const void *rdata, |
| uint32_t ttl |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_update_record) |
| return (*dnssd_update_record)(sdRef, RecordRef, flags, rdlen, rdata, ttl); |
| else |
| return (-1); |
| } |
| |
| |
| // TXTRecordCreate |
| void DNSSD_API |
| TXTRecordCreate( |
| TXTRecordRef *txtRecord, |
| uint16_t bufferLen, |
| void *buffer) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_create) |
| (*dnssd_txt_create)(txtRecord, bufferLen, buffer); |
| } |
| |
| |
| // TXTRecordDeallocate |
| void DNSSD_API TXTRecordDeallocate |
| ( |
| TXTRecordRef *txtRecord |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_deallocate) |
| (*dnssd_txt_deallocate)(txtRecord); |
| } |
| |
| |
| // TXTRecordGetBytesPtr |
| const void * DNSSD_API TXTRecordGetBytesPtr |
| ( |
| const TXTRecordRef *txtRecord |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_get_bytes_ptr) |
| return (*dnssd_txt_get_bytes_ptr)(txtRecord); |
| else |
| return (NULL); |
| } |
| |
| |
| // TXTRecordGetLength |
| uint16_t DNSSD_API TXTRecordGetLength |
| ( |
| const TXTRecordRef *txtRecord |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_get_length) |
| return (*dnssd_txt_get_length)(txtRecord); |
| else |
| return (0); |
| } |
| |
| |
| // TXTRecordSetValue |
| DNSServiceErrorType DNSSD_API TXTRecordSetValue |
| ( |
| TXTRecordRef *txtRecord, |
| const char *key, |
| uint8_t valueSize, /* may be zero */ |
| const void *value /* may be NULL */ |
| ) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_set_value) |
| return (*dnssd_txt_set_value)(txtRecord, key, valueSize, value); |
| else |
| return (-1); |
| } |
| |
| |
| // TXTRecordGetCount |
| uint16_t DNSSD_API |
| TXTRecordGetCount( |
| uint16_t txtLen, |
| const void *txtRecord) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_get_count) |
| return (*dnssd_txt_get_count)(txtLen, txtRecord); |
| else |
| return (0); |
| } |
| |
| |
| // TXTRecordGetItemAtIndex |
| DNSServiceErrorType DNSSD_API |
| TXTRecordGetItemAtIndex( |
| uint16_t txtLen, |
| const void *txtRecord, |
| uint16_t itemIndex, |
| uint16_t keyBufLen, |
| char *key, |
| uint8_t *valueLen, |
| const void **value) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_get_item_at_index) |
| return (*dnssd_txt_get_item_at_index)(txtLen, txtRecord, itemIndex, keyBufLen, key, valueLen, value); |
| else |
| return (-1); |
| } |
| |
| |
| // TXTRecordGetValuePtr |
| const void * DNSSD_API |
| TXTRecordGetValuePtr( |
| uint16_t txtLen, |
| const void *txtRecord, |
| const char *key, |
| uint8_t *valueLen) |
| { |
| if (!dnssd_initialized) |
| dnssd_init(); |
| |
| if (dnssd_txt_get_value_ptr) |
| return (*dnssd_txt_get_value_ptr)(txtLen, txtRecord, key, valueLen); |
| else |
| return (NULL); |
| } |
