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* curl-shim.h, curl-shim.c: New. This is code to fake the curl API in
terms of the current HTTP iobuf API. * gpgkeys_curl.c [FAKE_CURL], Makefile.am: If FAKE_CURL is set, link with the iobuf code rather than libcurl.
This commit is contained in:
parent
8ba44ec180
commit
25001837e9
@ -1,3 +1,11 @@
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2005-02-11 David Shaw <dshaw@jabberwocky.com>
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* curl-shim.h, curl-shim.c: New. This is code to fake the curl
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API in terms of the current HTTP iobuf API.
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* gpgkeys_curl.c [FAKE_CURL], Makefile.am: If FAKE_CURL is set,
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link with the iobuf code rather than libcurl.
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2005-02-05 David Shaw <dshaw@jabberwocky.com>
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* gpgkeys_finger.c (main), gpgkeys_hkp.c (main): Fix --version
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@ -39,5 +39,12 @@ gpgkeys_ldap_LDADD = ../util/libutil.a @LDAPLIBS@ @NETLIBS@ $(other_libs) @GETOP
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gpgkeys_hkp_LDADD = ../util/libutil.a @NETLIBS@ @SRVLIBS@ $(other_libs) @GETOPT@ @W32LIBS@
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gpgkeys_http_LDADD = ../util/libutil.a @NETLIBS@ @SRVLIBS@ $(other_libs) @GETOPT@ @W32LIBS@
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gpgkeys_finger_LDADD = ../util/libutil.a @NETLIBS@ $(other_libs) @GETOPT@ @W32LIBS@
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if FAKE_CURL
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gpgkeys_curl_SOURCES += curl-shim.c curl-shim.h
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gpgkeys_curl_CPPFLAGS = -DFAKE_CURL
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gpgkeys_curl_LDADD = ../util/libutil.a @NETLIBS@ @SRVLIBS@ $(other_libs) @GETOPT@ @W32LIBS@
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else
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gpgkeys_curl_CPPFLAGS = @LIBCURL_CPPFLAGS@
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gpgkeys_curl_LDADD = @LIBCURL@ @GETOPT@
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endif
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153
keyserver/curl-shim.c
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153
keyserver/curl-shim.c
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@ -0,0 +1,153 @@
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/* curl-shim.c - Implement a small subset of the curl API in terms of
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* the iobuf HTTP API
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*
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* Copyright (C) 2005 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <config.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "http.h"
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#include "util.h"
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#include "curl-shim.h"
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static CURLcode handle_error(CURL *curl,CURLcode err,const char *str)
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{
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if(curl->errorbuffer)
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{
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switch(err)
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{
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case CURLE_OK:
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strcpy(curl->errorbuffer,"okay");
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break;
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case CURLE_COULDNT_CONNECT:
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strcpy(curl->errorbuffer,"couldn't connect");
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break;
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case CURLE_WRITE_ERROR:
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strcpy(curl->errorbuffer,"write error");
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break;
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default:
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strcpy(curl->errorbuffer,"generic error");
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break;
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}
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if(str && (strlen(curl->errorbuffer)+2+strlen(str)+1)<=CURL_ERROR_SIZE)
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{
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strcat(curl->errorbuffer,": ");
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strcat(curl->errorbuffer,str);
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}
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}
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return err;
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}
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CURLcode curl_global_init(long flags)
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{
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return CURLE_OK;
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}
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void curl_global_cleanup(void) {}
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CURL *curl_easy_init(void)
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{
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return calloc(1,sizeof(CURL));
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}
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void curl_easy_cleanup(CURL *curl)
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{
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free(curl);
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}
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CURLcode curl_easy_setopt(CURL *curl,CURLoption option,...)
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{
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va_list ap;
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va_start(ap,option);
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switch(option)
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{
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case CURLOPT_URL:
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curl->url=va_arg(ap,char *);
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break;
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case CURLOPT_WRITEFUNCTION:
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curl->writer=va_arg(ap,write_func);
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break;
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case CURLOPT_FILE:
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curl->file=va_arg(ap,void *);
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break;
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case CURLOPT_ERRORBUFFER:
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curl->errorbuffer=va_arg(ap,char *);
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break;
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case CURLOPT_PROXY:
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curl->proxy=va_arg(ap,char *);
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break;
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default:
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/* We ignore the huge majority of curl options */
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break;
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}
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return handle_error(curl,CURLE_OK,NULL);
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}
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CURLcode curl_easy_perform(CURL *curl)
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{
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int rc;
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CURLcode err=CURLE_OK;
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const char *errstr=NULL;
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rc=http_open_document(&curl->hd,curl->url,0,curl->proxy);
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if(rc!=0)
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{
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if(rc==G10ERR_NETWORK)
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errstr=strerror(errno);
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else
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errstr=g10_errstr(rc);
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err=CURLE_COULDNT_CONNECT;
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}
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else
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{
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size_t maxlen=1024,buflen,len;
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byte *line=NULL;
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while((len=iobuf_read_line(curl->hd.fp_read,&line,&buflen,&maxlen)))
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{
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maxlen=1024;
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size_t ret;
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ret=(curl->writer)(line,len,1,curl->file);
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if(ret!=len)
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{
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err=CURLE_WRITE_ERROR;
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break;
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}
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}
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m_free(line);
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http_close(&curl->hd);
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}
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return handle_error(curl,err,errstr);
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}
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71
keyserver/curl-shim.h
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71
keyserver/curl-shim.h
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/* curl-shim.h
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* Copyright (C) 2005 Free Software Foundation, Inc.
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*
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* This file is part of GNUPG.
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*
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* GNUPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GNUPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef _CURL_SHIM_H_
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#define _CURL_SHIM_H_
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#include "http.h"
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typedef enum
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{
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CURLE_OK=0,
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CURLE_FTP_COULDNT_RETR_FILE,
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CURLE_COULDNT_CONNECT,
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CURLE_WRITE_ERROR
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} CURLcode;
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typedef enum
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{
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CURLOPT_URL,
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CURLOPT_WRITEFUNCTION,
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CURLOPT_FILE,
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CURLOPT_ERRORBUFFER,
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CURLOPT_FOLLOWLOCATION,
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CURLOPT_MAXREDIRS,
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CURLOPT_STDERR,
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CURLOPT_VERBOSE,
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CURLOPT_SSL_VERIFYPEER,
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CURLOPT_PROXY
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} CURLoption;
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typedef size_t (*write_func)(char *buffer,size_t size,
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size_t nitems,void *outstream);
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typedef struct
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{
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char *url;
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char *errorbuffer;
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char *proxy;
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write_func writer;
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void *file;
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struct http_context hd;
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} CURL;
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#define CURL_ERROR_SIZE 256
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#define CURL_GLOBAL_DEFAULT 0
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CURLcode curl_global_init(long flags);
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void curl_global_cleanup(void);
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CURL *curl_easy_init(void);
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CURLcode curl_easy_setopt(CURL *curl,CURLoption option,...);
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CURLcode curl_easy_perform(CURL *curl);
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void curl_easy_cleanup(CURL *curl);
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#endif /* !_CURL_SHIM_H_ */
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#ifdef FAKE_CURL
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#include "curl-shim.h"
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#else
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#include <curl/curl.h>
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#endif
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#include "keyserver.h"
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#include "ksutil.h"
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