curl.h

#ifndef __CURL_CURL_H
#define __CURL_CURL_H
/***************************************************************************
 *                                  _   _ ____  _     
 *  Project                     ___| | | |  _ \| |    
 *                             / __| | | | |_) | |    
 *                            | (__| |_| |  _ <| |___ 
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at http://curl.haxx.se/docs/copyright.html.
 * 
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 * $Id$
 ***************************************************************************/

/* If you have problems, all libcurl docs and details are found here:
   http://curl.haxx.se/libcurl/
*/

#include "curlver.h" /* the libcurl version defines */

#include <stdio.h>
#include <limits.h>

/* The include stuff here below is mainly for time_t! */
#ifdef vms
# include <types.h>
# include <time.h>
#else
# include <sys/types.h>
# include <time.h>
#endif /* defined (vms) */

#include "types.h"

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * We want the typedef curl_off_t setup for large file support on all
 * platforms. We also provide a CURL_FORMAT_OFF_T define to use in *printf
 * format strings when outputting a variable of type curl_off_t.
 */
#if defined(_MSC_VER)
/* MSVC */
  typedef signed __int64 curl_off_t;
#define CURL_FORMAT_OFF_T "%I64d"
#else /* MSC_VER */
#if (defined(__GNUC__) && defined(WIN32)) || defined(__WATCOMC__)
/* gcc on windows or Watcom */
  typedef long long curl_off_t;
#define CURL_FORMAT_OFF_T "%I64d"
#else /* GCC or Watcom on Windows  */

/* "normal" POSIX approach, do note that this does not necessarily mean that
   the type is >32 bits, see the SIZEOF_CURL_OFF_T define for that! */
  typedef off_t curl_off_t;

/* Check a range of defines to detect large file support. On Linux it seems
   none of these are set by default, so if you don't explicitly switches on
   large file support, this define will be made for "small file" support. */
#ifndef _FILE_OFFSET_BITS
#define _FILE_OFFSET_BITS 0 /* to prevent warnings in the check below */
#define UNDEF_FILE_OFFSET_BITS
#endif
#ifndef FILESIZEBITS
#define FILESIZEBITS 0 /* to prevent warnings in the check below */
#define UNDEF_FILESIZEBITS
#endif

#if defined(_LARGE_FILES) || (_FILE_OFFSET_BITS > 32) || (FILESIZEBITS > 32) \
   || defined(_LARGEFILE_SOURCE) || defined(_LARGEFILE64_SOURCE)
  /* For now, we assume at least one of these to be set for large files to
     work! */
#define CURL_FORMAT_OFF_T "%lld"
#else /* LARGE_FILE support */
#define CURL_FORMAT_OFF_T "%ld"
#endif
#endif /* GCC or Watcom on Windows */
#endif /* MSC_VER */

#ifdef UNDEF_FILE_OFFSET_BITS
/* this was defined above for our checks, undefine it again */
#undef _FILE_OFFSET_BITS
#endif

#ifdef UNDEF_FILESIZEBITS
/* this was defined above for our checks, undefine it again */
#undef FILESIZEBITS
#endif

struct curl_httppost {
  struct curl_httppost *next;       /* next entry in the list */
  char *name;                       /* pointer to allocated name */
  long namelength;                  /* length of name length */
  char *contents;                   /* pointer to allocated data contents */
  long contentslength;              /* length of contents field */
  char *buffer;                     /* pointer to allocated buffer contents */
  long bufferlength;                /* length of buffer field */
  char *contenttype;                /* Content-Type */
  struct curl_slist* contentheader; /* list of extra headers for this form */
  struct curl_httppost *more;       /* if one field name has more than one
                                       file, this link should link to following
                                       files */
  long flags;                       /* as defined below */
#define HTTPPOST_FILENAME (1<<0)    /* specified content is a file name */
#define HTTPPOST_READFILE (1<<1)    /* specified content is a file name */
#define HTTPPOST_PTRNAME (1<<2)     /* name is only stored pointer
                                       do not free in formfree */
#define HTTPPOST_PTRCONTENTS (1<<3) /* contents is only stored pointer
                                       do not free in formfree */
#define HTTPPOST_BUFFER (1<<4)      /* upload file from buffer */
#define HTTPPOST_PTRBUFFER (1<<5)   /* upload file from pointer contents */

  char *showfilename;               /* The file name to show. If not set, the
                                       actual file name will be used (if this
                                       is a file part) */
};

typedef int (*curl_progress_callback)(void *clientp,
                                      double dltotal,
                                      double dlnow,
                                      double ultotal,
                                      double ulnow);

  /* Tests have proven that 20K is a very bad buffer size for uploads on
     Windows, while 16K for some odd reason performed a lot better. */
#define CURL_MAX_WRITE_SIZE 16384

typedef size_t (*curl_write_callback)(char *buffer,
                                      size_t size,
                                      size_t nitems,
                                      void *outstream);

typedef size_t (*curl_read_callback)(char *buffer,
                                     size_t size,
                                     size_t nitems,
                                     void *instream);

  /* not used since 7.10.8, will be removed in a future release */
typedef int (*curl_passwd_callback)(void *clientp,
                                    const char *prompt,
                                    char *buffer,
                                    int buflen);

/* the kind of data that is passed to information_callback*/
typedef enum {
  CURLINFO_TEXT = 0,
  CURLINFO_HEADER_IN,    /* 1 */
  CURLINFO_HEADER_OUT,   /* 2 */
  CURLINFO_DATA_IN,      /* 3 */
  CURLINFO_DATA_OUT,     /* 4 */
  CURLINFO_END
} curl_infotype;

typedef int (*curl_debug_callback)
       (CURL *handle,      /* the handle/transfer this concerns */
        curl_infotype type, /* what kind of data */
        char *data,        /* points to the data */
        size_t size,       /* size of the data pointed to */
        void *userptr);    /* whatever the user please */
  
/* All possible error codes from all sorts of curl functions. Future versions
   may return other values, stay prepared.

   Always add new return codes last. Never *EVER* remove any. The return
   codes must remain the same!
 */

typedef enum {
  CURLE_OK = 0,
  CURLE_UNSUPPORTED_PROTOCOL,    /* 1 */
  CURLE_FAILED_INIT,             /* 2 */
  CURLE_URL_MALFORMAT,           /* 3 */
  CURLE_URL_MALFORMAT_USER,      /* 4 */
  CURLE_COULDNT_RESOLVE_PROXY,   /* 5 */
  CURLE_COULDNT_RESOLVE_HOST,    /* 6 */
  CURLE_COULDNT_CONNECT,         /* 7 */
  CURLE_FTP_WEIRD_SERVER_REPLY,  /* 8 */
  CURLE_FTP_ACCESS_DENIED,       /* 9 */
  CURLE_FTP_USER_PASSWORD_INCORRECT, /* 10 */
  CURLE_FTP_WEIRD_PASS_REPLY,    /* 11 */
  CURLE_FTP_WEIRD_USER_REPLY,    /* 12 */
  CURLE_FTP_WEIRD_PASV_REPLY,    /* 13 */
  CURLE_FTP_WEIRD_227_FORMAT,    /* 14 */
  CURLE_FTP_CANT_GET_HOST,       /* 15 */
  CURLE_FTP_CANT_RECONNECT,      /* 16 */
  CURLE_FTP_COULDNT_SET_BINARY,  /* 17 */
  CURLE_PARTIAL_FILE,            /* 18 */