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#ifndef R_INTERNET_MODULE_H
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#ifndef R_INTERNET_MODULE_H
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#define R_INTERNET_MODULE_H
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#define R_INTERNET_MODULE_H
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#include <Rinternals.h>
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#include <Rinternals.h>
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typedef SEXP (*R_DownloadRoutine)(SEXP call, SEXP op, SEXP args, SEXP env);
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typedef SEXP (*R_DownloadRoutine)(SEXP call, SEXP op, SEXP args, SEXP env);
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typedef Rconnection (*R_NewUrlRoutine)(char *description, char *mode);
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typedef Rconnection (*R_NewUrlRoutine)(char *description, char *mode);
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typedef Rconnection (*R_NewSockRoutine)(char *host, int port, int server, char *mode);
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typedef Rconnection (*R_NewSockRoutine)(char *host, int port, int server, char *mode);
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typedef void * (*R_HTTPOpenRoutine)(const char *url, const int cacheOK);
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typedef void * (*R_HTTPOpenRoutine)(const char *url, const int cacheOK);
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typedef int    (*R_HTTPReadRoutine)(void *ctx, char *dest, int len);
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typedef int    (*R_HTTPReadRoutine)(void *ctx, char *dest, int len);
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typedef void   (*R_HTTPCloseRoutine)(void *ctx);
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typedef void   (*R_HTTPCloseRoutine)(void *ctx);
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typedef void * (*R_FTPOpenRoutine)(const char *url);
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typedef void * (*R_FTPOpenRoutine)(const char *url);
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typedef int    (*R_FTPReadRoutine)(void *ctx, char *dest, int len);
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typedef int    (*R_FTPReadRoutine)(void *ctx, char *dest, int len);
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typedef void   (*R_FTPCloseRoutine)(void *ctx);
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typedef void   (*R_FTPCloseRoutine)(void *ctx);
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typedef void   (*R_SockOpenRoutine)(int *port);
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typedef void   (*R_SockOpenRoutine)(int *port);
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typedef void   (*R_SockListenRoutine)(int *sockp, char **buf, int *len);
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typedef void   (*R_SockListenRoutine)(int *sockp, char **buf, int *len);
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typedef void   (*R_SockConnectRoutine)(int *port, char **host);
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typedef void   (*R_SockConnectRoutine)(int *port, char **host);
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typedef void   (*R_SockCloseRoutine)(int *sockp);
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typedef void   (*R_SockCloseRoutine)(int *sockp);
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typedef void   (*R_SockReadRoutine)(int *sockp, char **buf, int *maxlen);
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typedef void   (*R_SockReadRoutine)(int *sockp, char **buf, int *maxlen);
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typedef void   (*R_SockWriteRoutine)(int *sockp, char **buf, int *start, int *end, int *len);
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typedef void   (*R_SockWriteRoutine)(int *sockp, char **buf, int *start, int *end, int *len);
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typedef int    (*R_SockSelectRoutine)(int nsock, int *insockfd, int *ready, int *write, double timeout);
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typedef struct {
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typedef struct {
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    R_DownloadRoutine download;
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    R_DownloadRoutine download;
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    R_NewUrlRoutine   newurl;
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    R_NewUrlRoutine   newurl;
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    R_NewSockRoutine  newsock;
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    R_NewSockRoutine  newsock;
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    R_HTTPOpenRoutine  HTTPOpen;
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    R_HTTPOpenRoutine  HTTPOpen;
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    R_HTTPReadRoutine  HTTPRead;
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    R_HTTPReadRoutine  HTTPRead;
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    R_HTTPCloseRoutine HTTPClose;
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    R_HTTPCloseRoutine HTTPClose;
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    R_FTPOpenRoutine   FTPOpen;
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    R_FTPOpenRoutine   FTPOpen;
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    R_FTPReadRoutine   FTPRead;
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    R_FTPReadRoutine   FTPRead;
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    R_FTPCloseRoutine  FTPClose;
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    R_FTPCloseRoutine  FTPClose;
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    R_SockOpenRoutine     sockopen;
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    R_SockOpenRoutine     sockopen;
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    R_SockListenRoutine   socklisten;
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    R_SockListenRoutine   socklisten;
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    R_SockConnectRoutine  sockconnect;
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    R_SockConnectRoutine  sockconnect;
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    R_SockCloseRoutine    sockclose;
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    R_SockCloseRoutine    sockclose;
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    R_SockReadRoutine     sockread;
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    R_SockReadRoutine     sockread;
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    R_SockWriteRoutine    sockwrite;
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    R_SockWriteRoutine    sockwrite;
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    R_SockSelectRoutine   sockselect;
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} R_InternetRoutines;
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} R_InternetRoutines;
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R_InternetRoutines *R_setInternetRoutines(R_InternetRoutines *routines);
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R_InternetRoutines *R_setInternetRoutines(R_InternetRoutines *routines);
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#endif /* ifndef R_INTERNET_MODULE_H */
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#endif /* ifndef R_INTERNET_MODULE_H */