code:
#ifndef __CURL_EASY_H
#define __CURL_EASY_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2008, 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.
 *
 ***************************************************************************/
#ifdef  __cplusplus
extern "C" {
#endif

CURL_EXTERN CURL *curl_easy_init(void);
CURL_EXTERN CURLcode curl_easy_setopt(CURL *curl, CURLoption option, ...);
CURL_EXTERN CURLcode curl_easy_perform(CURL *curl);
CURL_EXTERN void curl_easy_cleanup(CURL *curl);

/*
 * NAME curl_easy_getinfo()
 *
 * DESCRIPTION
 *
 * Request internal information from the curl session with this function.  The
 * third argument MUST be a pointer to a long, a pointer to a char * or a
 * pointer to a double (as the documentation describes elsewhere).  The data
 * pointed to will be filled in accordingly and can be relied upon only if the
 * function returns CURLE_OK.  This function is intended to get used *AFTER* a
 * performed transfer, all results from this function are undefined until the
 * transfer is completed.
 */
CURL_EXTERN CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ...);

/*
 * NAME curl_easy_duphandle()
 *
 * DESCRIPTION
 *
 * Creates a new curl session handle with the same options set for the handle
 * passed in. Duplicating a handle could only be a matter of cloning data and
 * options, internal state info and things like persistant connections cannot
 * be transfered. It is useful in multithreaded applications when you can run
 * curl_easy_duphandle() for each new thread to avoid a series of identical
 * curl_easy_setopt() invokes in every thread.
 */
CURL_EXTERN CURL* curl_easy_duphandle(CURL *curl);

/*
 * NAME curl_easy_reset()
 *
 * DESCRIPTION
 *
 * Re-initializes a CURL handle to the default values. This puts back the
 * handle to the same state as it was in when it was just created.
 *
 * It does keep: live connections, the Session ID cache, the DNS cache and the
 * cookies.
 */
CURL_EXTERN void curl_easy_reset(CURL *curl);

/*
 * NAME curl_easy_recv()
 *
 * DESCRIPTION
 *
 * Receives data from the connected socket. Use after successful
 * curl_easy_perform() with CURLOPT_CONNECT_ONLY option.
 */
CURL_EXTERN CURLcode curl_easy_recv(CURL *curl, void *buffer, size_t buflen,
                                    size_t *n);

/*
 * NAME curl_easy_send()
 *
 * DESCRIPTION
 *
 * Sends data over the connected socket. Use after successful
 * curl_easy_perform() with CURLOPT_CONNECT_ONLY option.
 */
CURL_EXTERN CURLcode curl_easy_send(CURL *curl, const void *buffer,
                                    size_t buflen, size_t *n);

#ifdef  __cplusplus
}
#endif

#endif


code:
#ifndef __CURL_MPRINTF_H
#define __CURL_MPRINTF_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2006, 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.
 *
 ***************************************************************************/

#include <stdarg.h>
#include <stdio.h> /* needed for FILE */

#include "curl.h"

#ifdef  __cplusplus
extern "C" {
#endif

CURL_EXTERN int curl_mprintf(const char *format, ...);
CURL_EXTERN int curl_mfprintf(FILE *fd, const char *format, ...);
CURL_EXTERN int curl_msprintf(char *buffer, const char *format, ...);
CURL_EXTERN int curl_msnprintf(char *buffer, size_t maxlength,
                               const char *format, ...);
CURL_EXTERN int curl_mvprintf(const char *format, va_list args);
CURL_EXTERN int curl_mvfprintf(FILE *fd, const char *format, va_list args);
CURL_EXTERN int curl_mvsprintf(char *buffer, const char *format, va_list args);
CURL_EXTERN int curl_mvsnprintf(char *buffer, size_t maxlength,
                                const char *format, va_list args);
CURL_EXTERN char *curl_maprintf(const char *format, ...);
CURL_EXTERN char *curl_mvaprintf(const char *format, va_list args);

#ifdef _MPRINTF_REPLACE
# undef printf
# undef fprintf
# undef sprintf
# undef vsprintf
# undef snprintf
# undef vprintf
# undef vfprintf
# undef vsnprintf
# undef aprintf
# undef vaprintf
# define printf curl_mprintf
# define fprintf curl_mfprintf
#ifdef CURLDEBUG
/* When built with CURLDEBUG we define away the sprintf() functions since we
   don't want internal code to be using them */
# define sprintf sprintf_was_used
# define vsprintf vsprintf_was_used
#else
# define sprintf curl_msprintf
# define vsprintf curl_mvsprintf
#endif
# define snprintf curl_msnprintf
# define vprintf curl_mvprintf
# define vfprintf curl_mvfprintf
# define vsnprintf curl_mvsnprintf
# define aprintf curl_maprintf
# define vaprintf curl_mvaprintf
#endif

#ifdef  __cplusplus
}
#endif

#endif /* __CURL_MPRINTF_H */

license: mit


code:
#ifndef __CURL_MULTI_H
#define __CURL_MULTI_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2007, 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.
 *
 ***************************************************************************/
/*
  This is an "external" header file. Don't give away any internals here!

  GOALS

  o Enable a "pull" interface. The application that uses libcurl decides where
    and when to ask libcurl to get/send data.

  o Enable multiple simultaneous transfers in the same thread without making it
    complicated for the application.

  o Enable the application to select() on its own file descriptors and curl's
    file descriptors simultaneous easily.

*/

/*
 * This header file should not really need to include "curl.h" since curl.h
 * itself includes this file and we expect user applications to do #include
 * <curl/curl.h> without the need for especially including multi.h.
 *
 * For some reason we added this include here at one point, and rather than to
 * break existing (wrongly written) libcurl applications, we leave it as-is
 * but with this warning attached.
 */
#include "curl.h"

#ifdef  __cplusplus
extern "C" {
#endif

typedef void CURLM;

typedef enum {
  CURLM_CALL_MULTI_PERFORM = -1, /* please call curl_multi_perform() or
                                    curl_multi_socket*() soon */
  CURLM_OK,
  CURLM_BAD_HANDLE,      /* the passed-in handle is not a valid CURLM handle */
  CURLM_BAD_EASY_HANDLE, /* an easy handle was not good/valid */
  CURLM_OUT_OF_MEMORY,   /* if you ever get this, you're in deep sh*t */
  CURLM_INTERNAL_ERROR,  /* this is a libcurl bug */
  CURLM_BAD_SOCKET,      /* the passed in socket argument did not match */
  CURLM_UNKNOWN_OPTION,  /* curl_multi_setopt() with unsupported option */
  CURLM_LAST
} CURLMcode;

/* just to make code nicer when using curl_multi_socket() you can now check
   for CURLM_CALL_MULTI_SOCKET too in the same style it works for
   curl_multi_perform() and CURLM_CALL_MULTI_PERFORM */
#define CURLM_CALL_MULTI_SOCKET CURLM_CALL_MULTI_PERFORM

typedef enum {
  CURLMSG_NONE, /* first, not used */
  CURLMSG_DONE, /* This easy handle has completed. 'result' contains
                   the CURLcode of the transfer */
  CURLMSG_LAST /* last, not used */
} CURLMSG;

struct CURLMsg {
  CURLMSG msg;       /* what this message means */
  CURL *easy_handle; /* the handle it concerns */
  union {
    void *whatever;    /* message-specific data */
    CURLcode result;   /* return code for transfer */
  } data;
};
typedef struct CURLMsg CURLMsg;

/*
 * Name:    curl_multi_init()
 *
 * Desc:    inititalize multi-style curl usage
 *
 * Returns: a new CURLM handle to use in all 'curl_multi' functions.
 */
CURL_EXTERN CURLM *curl_multi_init(void);

/*
 * Name:    curl_multi_add_handle()
 *
 * Desc:    add a standard curl handle to the multi stack
 *
 * Returns: CURLMcode type, general multi error code.
 */
CURL_EXTERN CURLMcode curl_multi_add_handle(CURLM *multi_handle,
                                            CURL *curl_handle);

 /*
  * Name:    curl_multi_remove_handle()
  *
  * Desc:    removes a curl handle from the multi stack again
  *
  * Returns: CURLMcode type, general multi error code.
  */
CURL_EXTERN CURLMcode curl_multi_remove_handle(CURLM *multi_handle,
                                               CURL *curl_handle);

 /*
  * Name:    curl_multi_fdset()
  *
  * Desc:    Ask curl for its fd_set sets. The app can use these to select() or
  *          poll() on. We want curl_multi_perform() called as soon as one of
  *          them are ready.
  *
  * Returns: CURLMcode type, general multi error code.
  */
CURL_EXTERN CURLMcode curl_multi_fdset(CURLM *multi_handle,
                                       fd_set *read_fd_set,
                                       fd_set *write_fd_set,
                                       fd_set *exc_fd_set,
                                       int *max_fd);

 /*
  * Name:    curl_multi_perform()
  *
  * Desc:    When the app thinks there's data available for curl it calls this
  *          function to read/write whatever there is right now. This returns
  *          as soon as the reads and writes are done. This function does not
  *          require that there actually is data available for reading or that
  *          data can be written, it can be called just in case. It returns
  *          the number of handles that still transfer data in the second
  *          argument's integer-pointer.
  *
  * Returns: CURLMcode type, general multi error code. *NOTE* that this only
  *          returns errors etc regarding the whole multi stack. There might
  *          still have occurred problems on invidual transfers even when this
  *          returns OK.
  */
CURL_EXTERN CURLMcode curl_multi_perform(CURLM *multi_handle,
                                         int *running_handles);

 /*
  * Name:    curl_multi_cleanup()
  *
  * Desc:    Cleans up and removes a whole multi stack. It does not free or
  *          touch any individual easy handles in any way. We need to define
  *          in what state those handles will be if this function is called
  *          in the middle of a transfer.
  *
  * Returns: CURLMcode type, general multi error code.
  */
CURL_EXTERN CURLMcode curl_multi_cleanup(CURLM *multi_handle);

/*
 * Name:    curl_multi_info_read()
 *
 * Desc:    Ask the multi handle if there's any messages/informationals from
 *          the individual transfers. Messages include informationals such as
 *          error code from the transfer or just the fact that a transfer is
 *          completed. More details on these should be written down as well.
 *
 *          Repeated calls to this function will return a new struct each
 *          time, until a special "end of msgs" struct is returned as a signal
 *          that there is no more to get at this point.
 *
 *          The data the returned pointer points to will not survive calling
 *          curl_multi_cleanup().
 *
 *          The 'CURLMsg' struct is meant to be very simple and only contain
 *          very basic informations. If more involved information is wanted,
 *          we will provide the particular "transfer handle" in that struct
 *          and that should/could/would be used in subsequent
 *          curl_easy_getinfo() calls (or similar). The point being that we
 *          must never expose complex structs to applications, as then we'll
 *          undoubtably get backwards compatibility problems in the future.
 *
 * Returns: A pointer to a filled-in struct, or NULL if it failed or ran out
 *          of structs. It also writes the number of messages left in the
 *          queue (after this read) in the integer the second argument points
 *          to.
 */
CURL_EXTERN CURLMsg *curl_multi_info_read(CURLM *multi_handle,
                                          int *msgs_in_queue);

/*
 * Name:    curl_multi_strerror()
 *
 * Desc:    The curl_multi_strerror function may be used to turn a CURLMcode
 *          value into the equivalent human readable error string.  This is
 *          useful for printing meaningful error messages.
 *
 * Returns: A pointer to a zero-terminated error message.
 */
CURL_EXTERN const char *curl_multi_strerror(CURLMcode);

/*
 * Name:    curl_multi_socket() and
 *          curl_multi_socket_all()
 *
 * Desc:    An alternative version of curl_multi_perform() that allows the
 *          application to pass in one of the file descriptors that have been
 *          detected to have "action" on them and let libcurl perform.
 *          See man page for details.
 */
#define CURL_POLL_NONE   0
#define CURL_POLL_IN     1
#define CURL_POLL_OUT    2
#define CURL_POLL_INOUT  3
#define CURL_POLL_REMOVE 4

#define CURL_SOCKET_TIMEOUT CURL_SOCKET_BAD

#define CURL_CSELECT_IN   0x01
#define CURL_CSELECT_OUT  0x02
#define CURL_CSELECT_ERR  0x04

typedef int (*curl_socket_callback)(CURL *easy,      /* easy handle */
                                    curl_socket_t s, /* socket */
                                    int what,        /* see above */
                                    void *userp,     /* private callback
                                                        pointer */
                                    void *socketp);  /* private socket
                                                        pointer */
/*
 * Name:    curl_multi_timer_callback
 *
 * Desc:    Called by libcurl whenever the library detects a change in the
 *          maximum number of milliseconds the app is allowed to wait before
 *          curl_multi_socket() or curl_multi_perform() must be called
 *          (to allow libcurl's timed events to take place).
 *
 * Returns: The callback should return zero.
 */
typedef int (*curl_multi_timer_callback)(CURLM *multi,    /* multi handle */
                                         long timeout_ms, /* see above */
                                         void *userp);    /* private callback
                                                             pointer */

CURL_EXTERN CURLMcode curl_multi_socket(CURLM *multi_handle, curl_socket_t s,
                                        int *running_handles);

CURL_EXTERN CURLMcode curl_multi_socket_action(CURLM *multi_handle,
                                               curl_socket_t s,
                                               int ev_bitmask,
                                               int *running_handles);

CURL_EXTERN CURLMcode curl_multi_socket_all(CURLM *multi_handle,
                                            int *running_handles);

#ifndef CURL_ALLOW_OLD_MULTI_SOCKET
/* This macro below was added in 7.16.3 to push users who recompile to use
   the new curl_multi_socket_action() instead of the old curl_multi_socket()
*/
#define curl_multi_socket(x,y,z) curl_multi_socket_action(x,y,0,z)
#endif

/*
 * Name:    curl_multi_timeout()
 *
 * Desc:    Returns the maximum number of milliseconds the app is allowed to
 *          wait before curl_multi_socket() or curl_multi_perform() must be
 *          called (to allow libcurl's timed events to take place).
 *
 * Returns: CURLM error code.
 */
CURL_EXTERN CURLMcode curl_multi_timeout(CURLM *multi_handle,
                                         long *milliseconds);

#undef CINIT /* re-using the same name as in curl.h */

#ifdef CURL_ISOCPP
#define CINIT(name,type,num) CURLMOPT_ ## name = CURLOPTTYPE_ ## type + num
#else
/* The macro "##" is ISO C, we assume pre-ISO C doesn't support it. */
#define LONG          CURLOPTTYPE_LONG
#define OBJECTPOINT   CURLOPTTYPE_OBJECTPOINT
#define FUNCTIONPOINT CURLOPTTYPE_FUNCTIONPOINT
#define OFF_T         CURLOPTTYPE_OFF_T
#define CINIT(name,type,number) CURLMOPT_/**/name = type + number
#endif

typedef enum {
  /* This is the socket callback function pointer */
  CINIT(SOCKETFUNCTION, FUNCTIONPOINT, 1),

  /* This is the argument passed to the socket callback */
  CINIT(SOCKETDATA, OBJECTPOINT, 2),

    /* set to 1 to enable pipelining for this multi handle */
  CINIT(PIPELINING, LONG, 3),

   /* This is the timer callback function pointer */
  CINIT(TIMERFUNCTION, FUNCTIONPOINT, 4),

  /* This is the argument passed to the timer callback */
  CINIT(TIMERDATA, OBJECTPOINT, 5),

  /* maximum number of entries in the connection cache */
  CINIT(MAXCONNECTS, LONG, 6),

  CURLMOPT_LASTENTRY /* the last unused */
} CURLMoption;

/*
 * Name:    curl_multi_setopt()
 *
 * Desc:    Sets options for the multi handle.
 *
 * Returns: CURLM error code.
 */
CURL_EXTERN CURLMcode curl_multi_setopt(CURLM *multi_handle,
                                        CURLMoption option, ...);

/*
 * Name:    curl_multi_assign()
 *
 * Desc:    This function sets an association in the multi handle between the
 *          given socket and a private pointer of the application. This is
 *          (only) useful for curl_multi_socket uses.
 *
 * Returns: CURLM error code.
 */
CURL_EXTERN CURLMcode curl_multi_assign(CURLM *multi_handle,
                                        curl_socket_t sockfd, void *sockp);

#ifdef __cplusplus
} /* end of extern "C" */
#endif

#endif


code:
#ifndef __STDC_HEADERS_H
#define __STDC_HEADERS_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2010, 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.
 *
 ***************************************************************************/

#include <sys/types.h>

size_t fread (void *, size_t, size_t, FILE *);
size_t fwrite (const void *, size_t, size_t, FILE *);

int strcasecmp(const char *, const char *);
int strncasecmp(const char *, const char *, size_t);

#endif /* __STDC_HEADERS_H */


code:
#ifndef __CURL_TYPECHECK_GCC_H
#define __CURL_TYPECHECK_GCC_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2010, 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.
 *
 ***************************************************************************/

/* wraps curl_easy_setopt() with typechecking */

/* To add a new kind of warning, add an
 *   if(_curl_is_sometype_option(_curl_opt))
 *     if(!_curl_is_sometype(value))
 *       _curl_easy_setopt_err_sometype();
 * block and define _curl_is_sometype_option, _curl_is_sometype and
 * _curl_easy_setopt_err_sometype below
 *
 * NOTE: We use two nested 'if' statements here instead of the && operator, in
 *       order to work around gcc bug #32061.  It affects only gcc 4.3.x/4.4.x
 *       when compiling with -Wlogical-op.
 *
 * To add an option that uses the same type as an existing option, you'll just
 * need to extend the appropriate _curl_*_option macro
 */
#define curl_easy_setopt(handle, option, value)                               \
__extension__ ({                                                              \
  __typeof__ (option) _curl_opt = option;                                     \
  if (__builtin_constant_p(_curl_opt)) {                                      \
    if (_curl_is_long_option(_curl_opt))                                      \
      if (!_curl_is_long(value))                                              \
        _curl_easy_setopt_err_long();                                         \
    if (_curl_is_off_t_option(_curl_opt))                                     \
      if (!_curl_is_off_t(value))                                             \
        _curl_easy_setopt_err_curl_off_t();                                   \
    if (_curl_is_string_option(_curl_opt))                                    \
      if (!_curl_is_string(value))                                            \
        _curl_easy_setopt_err_string();                                       \
    if (_curl_is_write_cb_option(_curl_opt))                                  \
      if (!_curl_is_write_cb(value))                                          \
        _curl_easy_setopt_err_write_callback();                               \
    if ((_curl_opt) == CURLOPT_READFUNCTION)                                  \
      if (!_curl_is_read_cb(value))                                           \
        _curl_easy_setopt_err_read_cb();                                      \
    if ((_curl_opt) == CURLOPT_IOCTLFUNCTION)                                 \
      if (!_curl_is_ioctl_cb(value))                                          \
        _curl_easy_setopt_err_ioctl_cb();                                     \
    if ((_curl_opt) == CURLOPT_SOCKOPTFUNCTION)                               \
      if (!_curl_is_sockopt_cb(value))                                        \
        _curl_easy_setopt_err_sockopt_cb();                                   \
    if ((_curl_opt) == CURLOPT_OPENSOCKETFUNCTION)                            \
      if (!_curl_is_opensocket_cb(value))                                     \
        _curl_easy_setopt_err_opensocket_cb();                                \
    if ((_curl_opt) == CURLOPT_PROGRESSFUNCTION)                              \
      if (!_curl_is_progress_cb(value))                                       \
        _curl_easy_setopt_err_progress_cb();                                  \
    if ((_curl_opt) == CURLOPT_DEBUGFUNCTION)                                 \
      if (!_curl_is_debug_cb(value))                                          \
        _curl_easy_setopt_err_debug_cb();                                     \
    if ((_curl_opt) == CURLOPT_SSL_CTX_FUNCTION)                              \
      if (!_curl_is_ssl_ctx_cb(value))                                        \
        _curl_easy_setopt_err_ssl_ctx_cb();                                   \
    if (_curl_is_conv_cb_option(_curl_opt))                                   \
      if (!_curl_is_conv_cb(value))                                           \
        _curl_easy_setopt_err_conv_cb();                                      \
    if ((_curl_opt) == CURLOPT_SEEKFUNCTION)                                  \
      if (!_curl_is_seek_cb(value))                                           \
        _curl_easy_setopt_err_seek_cb();                                      \
    if (_curl_is_cb_data_option(_curl_opt))                                   \
      if (!_curl_is_cb_data(value))                                           \
        _curl_easy_setopt_err_cb_data();                                      \
    if ((_curl_opt) == CURLOPT_ERRORBUFFER)                                   \
      if (!_curl_is_error_buffer(value))                                      \
        _curl_easy_setopt_err_error_buffer();                                 \
    if ((_curl_opt) == CURLOPT_STDERR)                                        \
      if (!_curl_is_FILE(value))                                              \
        _curl_easy_setopt_err_FILE();                                         \
    if (_curl_is_postfields_option(_curl_opt))                                \
      if (!_curl_is_postfields(value))                                        \
        _curl_easy_setopt_err_postfields();                                   \
    if ((_curl_opt) == CURLOPT_HTTPPOST)                                      \
      if (!_curl_is_arr((value), struct curl_httppost))                       \
        _curl_easy_setopt_err_curl_httpost();                                 \
    if (_curl_is_slist_option(_curl_opt))                                     \
      if (!_curl_is_arr((value), struct curl_slist))                          \
        _curl_easy_setopt_err_curl_slist();                                   \
    if ((_curl_opt) == CURLOPT_SHARE)                                         \
      if (!_curl_is_ptr((value), CURLSH))                                     \
        _curl_easy_setopt_err_CURLSH();                                       \
  }                                                                           \
  curl_easy_setopt(handle, _curl_opt, value);                                 \
})

/* wraps curl_easy_getinfo() with typechecking */
/* FIXME: don't allow const pointers */
#define curl_easy_getinfo(handle, info, arg)                                  \
__extension__ ({                                                              \
  __typeof__ (info) _curl_info = info;                                        \
  if (__builtin_constant_p(_curl_info)) {                                     \
    if (_curl_is_string_info(_curl_info))                                     \
      if (!_curl_is_arr((arg), char *))                                       \
        _curl_easy_getinfo_err_string();                                      \
    if (_curl_is_long_info(_curl_info))                                       \
      if (!_curl_is_arr((arg), long))                                         \
        _curl_easy_getinfo_err_long();                                        \
    if (_curl_is_double_info(_curl_info))                                     \
      if (!_curl_is_arr((arg), double))                                       \
        _curl_easy_getinfo_err_double();                                      \
    if (_curl_is_slist_info(_curl_info))                                      \
      if (!_curl_is_arr((arg), struct curl_slist *))                          \
        _curl_easy_getinfo_err_curl_slist();                                  \
  }                                                                           \
  curl_easy_getinfo(handle, _curl_info, arg);                                 \
})

/* TODO: typechecking for curl_share_setopt() and curl_multi_setopt(),
 * for now just make sure that the functions are called with three
 * arguments
 */
#define curl_share_setopt(share,opt,param) curl_share_setopt(share,opt,param)
#define curl_multi_setopt(handle,opt,param) curl_multi_setopt(handle,opt,param)

/* the actual warnings, triggered by calling the _curl_easy_setopt_err*
 * functions */

/* To define a new warning, use _CURL_WARNING(identifier, "message") */
#define _CURL_WARNING(id, message)                                            \
  static void __attribute__((warning(message))) __attribute__((unused))       \
  __attribute__((noinline)) id(void) { __asm__(""); }

_CURL_WARNING(_curl_easy_setopt_err_long,
  "curl_easy_setopt expects a long argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_curl_off_t,
  "curl_easy_setopt expects a curl_off_t argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_string,
  "curl_easy_setopt expects a string (char* or char[]) argument for this option"
  )
_CURL_WARNING(_curl_easy_setopt_err_write_callback,
  "curl_easy_setopt expects a curl_write_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_read_cb,
  "curl_easy_setopt expects a curl_read_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_ioctl_cb,
  "curl_easy_setopt expects a curl_ioctl_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_sockopt_cb,
  "curl_easy_setopt expects a curl_sockopt_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_opensocket_cb,
  "curl_easy_setopt expects a curl_opensocket_callback argument for this option"
  )
_CURL_WARNING(_curl_easy_setopt_err_progress_cb,
  "curl_easy_setopt expects a curl_progress_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_debug_cb,
  "curl_easy_setopt expects a curl_debug_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_ssl_ctx_cb,
  "curl_easy_setopt expects a curl_ssl_ctx_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_conv_cb,
  "curl_easy_setopt expects a curl_conv_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_seek_cb,
  "curl_easy_setopt expects a curl_seek_callback argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_cb_data,
  "curl_easy_setopt expects a private data pointer as argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_error_buffer,
  "curl_easy_setopt expects a char buffer of CURL_ERROR_SIZE as argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_FILE,
  "curl_easy_setopt expects a FILE* argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_postfields,
  "curl_easy_setopt expects a void* or char* argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_curl_httpost,
  "curl_easy_setopt expects a struct curl_httppost* argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_curl_slist,
  "curl_easy_setopt expects a struct curl_slist* argument for this option")
_CURL_WARNING(_curl_easy_setopt_err_CURLSH,
  "curl_easy_setopt expects a CURLSH* argument for this option")

_CURL_WARNING(_curl_easy_getinfo_err_string,
  "curl_easy_getinfo expects a pointer to char * for this info")
_CURL_WARNING(_curl_easy_getinfo_err_long,
  "curl_easy_getinfo expects a pointer to long for this info")
_CURL_WARNING(_curl_easy_getinfo_err_double,
  "curl_easy_getinfo expects a pointer to double for this info")
_CURL_WARNING(_curl_easy_getinfo_err_curl_slist,
  "curl_easy_getinfo expects a pointer to struct curl_slist * for this info")

/* groups of curl_easy_setops options that take the same type of argument */

/* To add a new option to one of the groups, just add
 *   (option) == CURLOPT_SOMETHING
 * to the or-expression. If the option takes a long or curl_off_t, you don't
 * have to do anything
 */

/* evaluates to true if option takes a long argument */
#define _curl_is_long_option(option)                                          \
  (0 < (option) && (option) < CURLOPTTYPE_OBJECTPOINT)

#define _curl_is_off_t_option(option)                                         \
  ((option) > CURLOPTTYPE_OFF_T)

/* evaluates to true if option takes a char* argument */
#define _curl_is_string_option(option)                                        \
  ((option) == CURLOPT_URL ||                                                 \
   (option) == CURLOPT_PROXY ||                                               \
   (option) == CURLOPT_INTERFACE ||                                           \
   (option) == CURLOPT_NETRC_FILE ||                                          \
   (option) == CURLOPT_USERPWD ||                                             \
   (option) == CURLOPT_USERNAME ||                                            \
   (option) == CURLOPT_PASSWORD ||                                            \
   (option) == CURLOPT_PROXYUSERPWD ||                                        \
   (option) == CURLOPT_PROXYUSERNAME ||                                       \
   (option) == CURLOPT_PROXYPASSWORD ||                                       \
   (option) == CURLOPT_NOPROXY ||                                             \
   (option) == CURLOPT_ENCODING ||                                            \
   (option) == CURLOPT_REFERER ||                                             \
   (option) == CURLOPT_USERAGENT ||                                           \
   (option) == CURLOPT_COOKIE ||                                              \
   (option) == CURLOPT_COOKIEFILE ||                                          \
   (option) == CURLOPT_COOKIEJAR ||                                           \
   (option) == CURLOPT_COOKIELIST ||                                          \
   (option) == CURLOPT_FTPPORT ||                                             \
   (option) == CURLOPT_FTP_ALTERNATIVE_TO_USER ||                             \
   (option) == CURLOPT_FTP_ACCOUNT ||                                         \
   (option) == CURLOPT_RANGE ||                                               \
   (option) == CURLOPT_CUSTOMREQUEST ||                                       \
   (option) == CURLOPT_SSLCERT ||                                             \
   (option) == CURLOPT_SSLCERTTYPE ||                                         \
   (option) == CURLOPT_SSLKEY ||                                              \
   (option) == CURLOPT_SSLKEYTYPE ||                                          \
   (option) == CURLOPT_KEYPASSWD ||                                           \
   (option) == CURLOPT_SSLENGINE ||                                           \
   (option) == CURLOPT_CAINFO ||                                              \
   (option) == CURLOPT_CAPATH ||                                              \
   (option) == CURLOPT_RANDOM_FILE ||                                         \
   (option) == CURLOPT_EGDSOCKET ||                                           \
   (option) == CURLOPT_SSL_CIPHER_LIST ||                                     \
   (option) == CURLOPT_KRBLEVEL ||                                            \
   (option) == CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 ||                             \
   (option) == CURLOPT_SSH_PUBLIC_KEYFILE ||                                  \
   (option) == CURLOPT_SSH_PRIVATE_KEYFILE ||                                 \
   (option) == CURLOPT_CRLFILE ||                                             \
   (option) == CURLOPT_ISSUERCERT ||                                          \
   (option) == CURLOPT_SOCKS5_GSSAPI_SERVICE ||                               \
   (option) == CURLOPT_SSH_KNOWNHOSTS ||                                      \
   (option) == CURLOPT_MAIL_FROM ||                                           \
   (option) == CURLOPT_RTSP_SESSION_ID ||                                     \
   (option) == CURLOPT_RTSP_STREAM_URI ||                                     \
   (option) == CURLOPT_RTSP_TRANSPORT ||                                      \
   0)

/* evaluates to true if option takes a curl_write_callback argument */
#define _curl_is_write_cb_option(option)                                      \
  ((option) == CURLOPT_HEADERFUNCTION ||                                      \
   (option) == CURLOPT_WRITEFUNCTION)

/* evaluates to true if option takes a curl_conv_callback argument */
#define _curl_is_conv_cb_option(option)                                       \
  ((option) == CURLOPT_CONV_TO_NETWORK_FUNCTION ||                            \
   (option) == CURLOPT_CONV_FROM_NETWORK_FUNCTION ||                          \
   (option) == CURLOPT_CONV_FROM_UTF8_FUNCTION)

/* evaluates to true if option takes a data argument to pass to a callback */
#define _curl_is_cb_data_option(option)                                       \
  ((option) == CURLOPT_WRITEDATA ||                                           \
   (option) == CURLOPT_READDATA ||                                            \
   (option) == CURLOPT_IOCTLDATA ||                                           \
   (option) == CURLOPT_SOCKOPTDATA ||                                         \
   (option) == CURLOPT_OPENSOCKETDATA ||                                      \
   (option) == CURLOPT_PROGRESSDATA ||                                        \
   (option) == CURLOPT_WRITEHEADER ||                                         \
   (option) == CURLOPT_DEBUGDATA ||                                           \
   (option) == CURLOPT_SSL_CTX_DATA ||                                        \
   (option) == CURLOPT_SEEKDATA ||                                            \
   (option) == CURLOPT_PRIVATE ||                                             \
   (option) == CURLOPT_SSH_KEYDATA ||                                         \
   (option) == CURLOPT_INTERLEAVEDATA ||                                      \
   (option) == CURLOPT_CHUNK_DATA ||                                          \
   (option) == CURLOPT_FNMATCH_DATA ||                                        \
   0)

/* evaluates to true if option takes a POST data argument (void* or char*) */
#define _curl_is_postfields_option(option)                                    \
  ((option) == CURLOPT_POSTFIELDS ||                                          \
   (option) == CURLOPT_COPYPOSTFIELDS ||                                      \
   0)

/* evaluates to true if option takes a struct curl_slist * argument */
#define _curl_is_slist_option(option)                                         \
  ((option) == CURLOPT_HTTPHEADER ||                                          \
   (option) == CURLOPT_HTTP200ALIASES ||                                      \
   (option) == CURLOPT_QUOTE ||                                               \
   (option) == CURLOPT_POSTQUOTE ||                                           \
   (option) == CURLOPT_PREQUOTE ||                                            \
   (option) == CURLOPT_TELNETOPTIONS ||                                       \
   (option) == CURLOPT_MAIL_RCPT ||                                           \
   0)

/* groups of curl_easy_getinfo infos that take the same type of argument */

/* evaluates to true if info expects a pointer to char * argument */
#define _curl_is_string_info(info)                                            \
  (CURLINFO_STRING < (info) && (info) < CURLINFO_LONG)

/* evaluates to true if info expects a pointer to long argument */
#define _curl_is_long_info(info)                                              \
  (CURLINFO_LONG < (info) && (info) < CURLINFO_DOUBLE)

/* evaluates to true if info expects a pointer to double argument */
#define _curl_is_double_info(info)                                            \
  (CURLINFO_DOUBLE < (info) && (info) < CURLINFO_SLIST)

/* true if info expects a pointer to struct curl_slist * argument */
#define _curl_is_slist_info(info)                                             \
  (CURLINFO_SLIST < (info))

/* typecheck helpers -- check whether given expression has requested type*/

/* For pointers, you can use the _curl_is_ptr/_curl_is_arr macros,
 * otherwise define a new macro. Search for __builtin_types_compatible_p
 * in the GCC manual.
 * NOTE: these macros MUST NOT EVALUATE their arguments! The argument is
 * the actual expression passed to the curl_easy_setopt macro. This
 * means that you can only apply the sizeof and __typeof__ operators, no
 * == or whatsoever.
 */

/* XXX: should evaluate to true iff expr is a pointer */
#define _curl_is_any_ptr(expr)                                                \
  (sizeof(expr) == sizeof(void*))

/* evaluates to true if expr is NULL */
/* XXX: must not evaluate expr, so this check is not accurate */
#define _curl_is_NULL(expr)                                                   \
  (__builtin_types_compatible_p(__typeof__(expr), __typeof__(NULL)))

/* evaluates to true if expr is type*, const type* or NULL */
#define _curl_is_ptr(expr, type)                                              \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), type *) ||                  \
   __builtin_types_compatible_p(__typeof__(expr), const type *))

/* evaluates to true if expr is one of type[], type*, NULL or const type* */
#define _curl_is_arr(expr, type)                                              \
  (_curl_is_ptr((expr), type) ||                                              \
   __builtin_types_compatible_p(__typeof__(expr), type []))

/* evaluates to true if expr is a string */
#define _curl_is_string(expr)                                                 \
  (_curl_is_arr((expr), char) ||                                              \
   _curl_is_arr((expr), signed char) ||                                       \
   _curl_is_arr((expr), unsigned char))

/* evaluates to true if expr is a long (no matter the signedness)
 * XXX: for now, int is also accepted (and therefore short and char, which
 * are promoted to int when passed to a variadic function) */
#define _curl_is_long(expr)                                                   \
  (__builtin_types_compatible_p(__typeof__(expr), long) ||                    \
   __builtin_types_compatible_p(__typeof__(expr), signed long) ||             \
   __builtin_types_compatible_p(__typeof__(expr), unsigned long) ||           \
   __builtin_types_compatible_p(__typeof__(expr), int) ||                     \
   __builtin_types_compatible_p(__typeof__(expr), signed int) ||              \
   __builtin_types_compatible_p(__typeof__(expr), unsigned int) ||            \
   __builtin_types_compatible_p(__typeof__(expr), short) ||                   \
   __builtin_types_compatible_p(__typeof__(expr), signed short) ||            \
   __builtin_types_compatible_p(__typeof__(expr), unsigned short) ||          \
   __builtin_types_compatible_p(__typeof__(expr), char) ||                    \
   __builtin_types_compatible_p(__typeof__(expr), signed char) ||             \
   __builtin_types_compatible_p(__typeof__(expr), unsigned char))

/* evaluates to true if expr is of type curl_off_t */
#define _curl_is_off_t(expr)                                                  \
  (__builtin_types_compatible_p(__typeof__(expr), curl_off_t))

/* evaluates to true if expr is abuffer suitable for CURLOPT_ERRORBUFFER */
/* XXX: also check size of an char[] array? */
#define _curl_is_error_buffer(expr)                                           \
  (__builtin_types_compatible_p(__typeof__(expr), char *) ||                  \
   __builtin_types_compatible_p(__typeof__(expr), char[]))

/* evaluates to true if expr is of type (const) void* or (const) FILE* */
#if 0
#define _curl_is_cb_data(expr)                                                \
  (_curl_is_ptr((expr), void) ||                                              \
   _curl_is_ptr((expr), FILE))
#else /* be less strict */
#define _curl_is_cb_data(expr)                                                \
  _curl_is_any_ptr(expr)
#endif

/* evaluates to true if expr is of type FILE* */
#define _curl_is_FILE(expr)                                                   \
  (__builtin_types_compatible_p(__typeof__(expr), FILE *))

/* evaluates to true if expr can be passed as POST data (void* or char*) */
#define _curl_is_postfields(expr)                                             \
  (_curl_is_ptr((expr), void) ||                                              \
   _curl_is_arr((expr), char))

/* FIXME: the whole callback checking is messy...
 * The idea is to tolerate char vs. void and const vs. not const
 * pointers in arguments at least
 */
/* helper: __builtin_types_compatible_p distinguishes between functions and
 * function pointers, hide it */
#define _curl_callback_compatible(func, type)                                 \
  (__builtin_types_compatible_p(__typeof__(func), type) ||                    \
   __builtin_types_compatible_p(__typeof__(func), type*))

/* evaluates to true if expr is of type curl_read_callback or "similar" */
#define _curl_is_read_cb(expr)                                          \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), __typeof__(fread)) ||       \
   __builtin_types_compatible_p(__typeof__(expr), curl_read_callback) ||      \
   _curl_callback_compatible((expr), _curl_read_callback1) ||                 \
   _curl_callback_compatible((expr), _curl_read_callback2) ||                 \
   _curl_callback_compatible((expr), _curl_read_callback3) ||                 \
   _curl_callback_compatible((expr), _curl_read_callback4) ||                 \
   _curl_callback_compatible((expr), _curl_read_callback5) ||                 \
   _curl_callback_compatible((expr), _curl_read_callback6))
typedef size_t (_curl_read_callback1)(char *, size_t, size_t, void*);
typedef size_t (_curl_read_callback2)(char *, size_t, size_t, const void*);
typedef size_t (_curl_read_callback3)(char *, size_t, size_t, FILE*);
typedef size_t (_curl_read_callback4)(void *, size_t, size_t, void*);
typedef size_t (_curl_read_callback5)(void *, size_t, size_t, const void*);
typedef size_t (_curl_read_callback6)(void *, size_t, size_t, FILE*);

/* evaluates to true if expr is of type curl_write_callback or "similar" */
#define _curl_is_write_cb(expr)                                               \
  (_curl_is_read_cb(expr) ||                                            \
   __builtin_types_compatible_p(__typeof__(expr), __typeof__(fwrite)) ||      \
   __builtin_types_compatible_p(__typeof__(expr), curl_write_callback) ||     \
   _curl_callback_compatible((expr), _curl_write_callback1) ||                \
   _curl_callback_compatible((expr), _curl_write_callback2) ||                \
   _curl_callback_compatible((expr), _curl_write_callback3) ||                \
   _curl_callback_compatible((expr), _curl_write_callback4) ||                \
   _curl_callback_compatible((expr), _curl_write_callback5) ||                \
   _curl_callback_compatible((expr), _curl_write_callback6))
typedef size_t (_curl_write_callback1)(const char *, size_t, size_t, void*);
typedef size_t (_curl_write_callback2)(const char *, size_t, size_t,
                                       const void*);
typedef size_t (_curl_write_callback3)(const char *, size_t, size_t, FILE*);
typedef size_t (_curl_write_callback4)(const void *, size_t, size_t, void*);
typedef size_t (_curl_write_callback5)(const void *, size_t, size_t,
                                       const void*);
typedef size_t (_curl_write_callback6)(const void *, size_t, size_t, FILE*);

/* evaluates to true if expr is of type curl_ioctl_callback or "similar" */
#define _curl_is_ioctl_cb(expr)                                         \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_ioctl_callback) ||     \
   _curl_callback_compatible((expr), _curl_ioctl_callback1) ||                \
   _curl_callback_compatible((expr), _curl_ioctl_callback2) ||                \
   _curl_callback_compatible((expr), _curl_ioctl_callback3) ||                \
   _curl_callback_compatible((expr), _curl_ioctl_callback4))
typedef curlioerr (_curl_ioctl_callback1)(CURL *, int, void*);
typedef curlioerr (_curl_ioctl_callback2)(CURL *, int, const void*);
typedef curlioerr (_curl_ioctl_callback3)(CURL *, curliocmd, void*);
typedef curlioerr (_curl_ioctl_callback4)(CURL *, curliocmd, const void*);

/* evaluates to true if expr is of type curl_sockopt_callback or "similar" */
#define _curl_is_sockopt_cb(expr)                                       \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_sockopt_callback) ||   \
   _curl_callback_compatible((expr), _curl_sockopt_callback1) ||              \
   _curl_callback_compatible((expr), _curl_sockopt_callback2))
typedef int (_curl_sockopt_callback1)(void *, curl_socket_t, curlsocktype);
typedef int (_curl_sockopt_callback2)(const void *, curl_socket_t,
                                      curlsocktype);

/* evaluates to true if expr is of type curl_opensocket_callback or "similar" */
#define _curl_is_opensocket_cb(expr)                                    \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_opensocket_callback) ||\
   _curl_callback_compatible((expr), _curl_opensocket_callback1) ||           \
   _curl_callback_compatible((expr), _curl_opensocket_callback2) ||           \
   _curl_callback_compatible((expr), _curl_opensocket_callback3) ||           \
   _curl_callback_compatible((expr), _curl_opensocket_callback4))
typedef curl_socket_t (_curl_opensocket_callback1)
  (void *, curlsocktype, struct curl_sockaddr *);
typedef curl_socket_t (_curl_opensocket_callback2)
  (void *, curlsocktype, const struct curl_sockaddr *);
typedef curl_socket_t (_curl_opensocket_callback3)
  (const void *, curlsocktype, struct curl_sockaddr *);
typedef curl_socket_t (_curl_opensocket_callback4)
  (const void *, curlsocktype, const struct curl_sockaddr *);

/* evaluates to true if expr is of type curl_progress_callback or "similar" */
#define _curl_is_progress_cb(expr)                                      \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_progress_callback) ||  \
   _curl_callback_compatible((expr), _curl_progress_callback1) ||             \
   _curl_callback_compatible((expr), _curl_progress_callback2))
typedef int (_curl_progress_callback1)(void *,
    double, double, double, double);
typedef int (_curl_progress_callback2)(const void *,
    double, double, double, double);

/* evaluates to true if expr is of type curl_debug_callback or "similar" */
#define _curl_is_debug_cb(expr)                                         \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_debug_callback) ||     \
   _curl_callback_compatible((expr), _curl_debug_callback1) ||                \
   _curl_callback_compatible((expr), _curl_debug_callback2) ||                \
   _curl_callback_compatible((expr), _curl_debug_callback3) ||                \
   _curl_callback_compatible((expr), _curl_debug_callback4))
typedef int (_curl_debug_callback1) (CURL *,
    curl_infotype, char *, size_t, void *);
typedef int (_curl_debug_callback2) (CURL *,
    curl_infotype, char *, size_t, const void *);
typedef int (_curl_debug_callback3) (CURL *,
    curl_infotype, const char *, size_t, void *);
typedef int (_curl_debug_callback4) (CURL *,
    curl_infotype, const char *, size_t, const void *);

/* evaluates to true if expr is of type curl_ssl_ctx_callback or "similar" */
/* this is getting even messier... */
#define _curl_is_ssl_ctx_cb(expr)                                       \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_ssl_ctx_callback) ||   \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback1) ||              \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback2) ||              \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback3) ||              \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback4) ||              \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback5) ||              \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback6) ||              \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback7) ||              \
   _curl_callback_compatible((expr), _curl_ssl_ctx_callback8))
typedef CURLcode (_curl_ssl_ctx_callback1)(CURL *, void *, void *);
typedef CURLcode (_curl_ssl_ctx_callback2)(CURL *, void *, const void *);
typedef CURLcode (_curl_ssl_ctx_callback3)(CURL *, const void *, void *);
typedef CURLcode (_curl_ssl_ctx_callback4)(CURL *, const void *, const void *);
#ifdef HEADER_SSL_H
/* hack: if we included OpenSSL's ssl.h, we know about SSL_CTX
 * this will of course break if we're included before OpenSSL headers...
 */
typedef CURLcode (_curl_ssl_ctx_callback5)(CURL *, SSL_CTX, void *);
typedef CURLcode (_curl_ssl_ctx_callback6)(CURL *, SSL_CTX, const void *);
typedef CURLcode (_curl_ssl_ctx_callback7)(CURL *, const SSL_CTX, void *);
typedef CURLcode (_curl_ssl_ctx_callback8)(CURL *, const SSL_CTX, const void *);
#else
typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback5;
typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback6;
typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback7;
typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback8;
#endif

/* evaluates to true if expr is of type curl_conv_callback or "similar" */
#define _curl_is_conv_cb(expr)                                          \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_conv_callback) ||      \
   _curl_callback_compatible((expr), _curl_conv_callback1) ||                 \
   _curl_callback_compatible((expr), _curl_conv_callback2) ||                 \
   _curl_callback_compatible((expr), _curl_conv_callback3) ||                 \
   _curl_callback_compatible((expr), _curl_conv_callback4))
typedef CURLcode (*_curl_conv_callback1)(char *, size_t length);
typedef CURLcode (*_curl_conv_callback2)(const char *, size_t length);
typedef CURLcode (*_curl_conv_callback3)(void *, size_t length);
typedef CURLcode (*_curl_conv_callback4)(const void *, size_t length);

/* evaluates to true if expr is of type curl_seek_callback or "similar" */
#define _curl_is_seek_cb(expr)                                          \
  (_curl_is_NULL(expr) ||                                                     \
   __builtin_types_compatible_p(__typeof__(expr), curl_seek_callback) ||      \
   _curl_callback_compatible((expr), _curl_seek_callback1) ||                 \
   _curl_callback_compatible((expr), _curl_seek_callback2))
typedef CURLcode (*_curl_seek_callback1)(void *, curl_off_t, int);
typedef CURLcode (*_curl_seek_callback2)(const void *, curl_off_t, int);

#endif /* __CURL_TYPECHECK_GCC_H */


code:
LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := cocos_jpeg_static
LOCAL_MODULE_FILENAME := jpeg
LOCAL_SRC_FILES := libs/$(TARGET_ARCH_ABI)/libjpeg.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_STATIC_LIBRARY)


code:
/* android jconfig.h */
/*
 * jconfig.doc
 *
 * Copyright (C) 1991-1994, Thomas G. Lane.
 * This file is part of the Independent JPEG Group's software.
 * For conditions of distribution and use, see the accompanying README file.
 *
 * This file documents the configuration options that are required to
 * customize the JPEG software for a particular system.
 *
 * The actual configuration options for a particular installation are stored
 * in jconfig.h.  On many machines, jconfig.h can be generated automatically
 * or copied from one of the "canned" jconfig files that we supply.  But if
 * you need to generate a jconfig.h file by hand, this file tells you how.
 *
 * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING.
 * EDIT A COPY NAMED JCONFIG.H.
 */

/*
 * These symbols indicate the properties of your machine or compiler.
 * #define the symbol if yes, #undef it if no.
 */

/* Does your compiler support function prototypes?
 * (If not, you also need to use ansi2knr, see install.doc)
 */
#define HAVE_PROTOTYPES

/* Does your compiler support the declaration "unsigned char" ?
 * How about "unsigned short" ?
 */
#define HAVE_UNSIGNED_CHAR
#define HAVE_UNSIGNED_SHORT

/* Define "void" as "char" if your compiler doesn't know about type void.
 * NOTE: be sure to define void such that "void *" represents the most general
 * pointer type, e.g., that returned by malloc().
 */
/* #define void char */

/* Define "const" as empty if your compiler doesn't know the "const" keyword.
 */
/* #define const */

/* Define this if an ordinary "char" type is unsigned.
 * If you're not sure, leaving it undefined will work at some cost in speed.
 * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal.
 */
#undef CHAR_IS_UNSIGNED

/* Define this if your system has an ANSI-conforming <stddef.h> file.
 */
#define HAVE_STDDEF_H

/* Define this if your system has an ANSI-conforming <stdlib.h> file.
 */
#define HAVE_STDLIB_H

/* Define this if your system does not have an ANSI/SysV <string.h>,
 * but does have a BSD-style <strings.h>.
 */
#undef NEED_BSD_STRINGS

/* Define this if your system does not provide typedef size_t in any of the
 * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in
 * <sys/types.h> instead.
 */
#undef NEED_SYS_TYPES_H

/* For 80x86 machines, you need to define NEED_FAR_POINTERS,
 * unless you are using a large-data memory model or 80386 flat-memory mode.
 * On less brain-damaged CPUs this symbol must not be defined.
 * (Defining this symbol causes large data structures to be referenced through
 * "far" pointers and to be allocated with a special version of malloc.)
 */
#undef NEED_FAR_POINTERS

/* Define this if your linker needs global names to be unique in less
 * than the first 15 characters.
 */
#undef NEED_SHORT_EXTERNAL_NAMES

/* Although a real ANSI C compiler can deal perfectly well with pointers to
 * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI
 * and pseudo-ANSI compilers get confused.  To keep one of these bozos happy,
 * define INCOMPLETE_TYPES_BROKEN.  This is not recommended unless you
 * actually get "missing structure definition" warnings or errors while
 * compiling the JPEG code.
 */
#undef INCOMPLETE_TYPES_BROKEN

/*
 * The following options affect code selection within the JPEG library,
 * but they don't need to be visible to applications using the library.
 * To minimize application namespace pollution, the symbols won't be
 * defined unless JPEG_INTERNALS has been defined.
 */

#ifdef JPEG_INTERNALS

/* Define this if your compiler implements ">>" on signed values as a logical
 * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift,
 * which is the normal and rational definition.
 */
#undef RIGHT_SHIFT_IS_UNSIGNED

#endif /* JPEG_INTERNALS */

/*
 * The remaining options do not affect the JPEG library proper,
 * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c).
 * Other applications can ignore these.
 */

#ifdef JPEG_CJPEG_DJPEG

/* These defines indicate which image (non-JPEG) file formats are allowed. */

#define BMP_SUPPORTED		/* BMP image file format */
#define GIF_SUPPORTED		/* GIF image file format */
#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
#undef RLE_SUPPORTED		/* Utah RLE image file format */
#define TARGA_SUPPORTED		/* Targa image file format */

/* Define this if you want to name both input and output files on the command
 * line, rather than using stdout and optionally stdin.  You MUST do this if
 * your system can't cope with binary I/O to stdin/stdout.  See comments at
 * head of cjpeg.c or djpeg.c.
 */
#undef TWO_FILE_COMMANDLINE

/* Define this if your system needs explicit cleanup of temporary files.
 * This is crucial under MS-DOS, where the temporary "files" may be areas
 * of extended memory; on most other systems it's not as important.
 */
#undef NEED_SIGNAL_CATCHER

/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb").
 * This is necessary on systems that distinguish text files from binary files,
 * and is harmless on most systems that don't.  If you have one of the rare
 * systems that complains about the "b" spec, define this symbol.
 */
#undef DONT_USE_B_MODE

/* Define this if you want percent-done progress reports from cjpeg/djpeg.
 */
#undef PROGRESS_REPORT

#endif /* JPEG_CJPEG_DJPEG */


code:
/*
 * jerror.h
 *
 * Copyright (C) 1994-1997, Thomas G. Lane.
 * Modified 1997-2009 by Guido Vollbeding.
 * This file is part of the Independent JPEG Group's software.
 * For conditions of distribution and use, see the accompanying README file.
 *
 * This file defines the error and message codes for the JPEG library.
 * Edit this file to add new codes, or to translate the message strings to
 * some other language.
 * A set of error-reporting macros are defined too.  Some applications using
 * the JPEG library may wish to include this file to get the error codes
 * and/or the macros.
 */

/*
 * To define the enum list of message codes, include this file without
 * defining macro JMESSAGE.  To create a message string table, include it
 * again with a suitable JMESSAGE definition (see jerror.c for an example).
 */
#ifndef JMESSAGE
#ifndef JERROR_H
/* First time through, define the enum list */
#define JMAKE_ENUM_LIST
#else
/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */
#define JMESSAGE(code,string)
#endif /* JERROR_H */
#endif /* JMESSAGE */

#ifdef JMAKE_ENUM_LIST

typedef enum {

#define JMESSAGE(code,string)	code ,

#endif /* JMAKE_ENUM_LIST */

JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */

/* For maintenance convenience, list is alphabetical by message code name */
JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix")
JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix")
JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode")
JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS")
JMESSAGE(JERR_BAD_CROP_SPEC, "Invalid crop request")
JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range")
JMESSAGE(JERR_BAD_DCTSIZE, "DCT scaled block size %dx%d not supported")
JMESSAGE(JERR_BAD_DROP_SAMPLING,
	 "Component index %d: mismatching sampling ratio %d:%d, %d:%d, %c")
JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition")
JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace")
JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace")
JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length")
JMESSAGE(JERR_BAD_LIB_VERSION,
	 "Wrong JPEG library version: library is %d, caller expects %d")
JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan")
JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d")
JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d")
JMESSAGE(JERR_BAD_PROGRESSION,
	 "Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d")
JMESSAGE(JERR_BAD_PROG_SCRIPT,
	 "Invalid progressive parameters at scan script entry %d")
JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors")
JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d")
JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d")
JMESSAGE(JERR_BAD_STRUCT_SIZE,
	 "JPEG parameter struct mismatch: library thinks size is %u, caller expects %u")
JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access")
JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small")
JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here")
JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet")
JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d")
JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request")
JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d")
JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x")
JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d")
JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d")
JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)")
JMESSAGE(JERR_EMS_READ, "Read from EMS failed")
JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed")
JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan")
JMESSAGE(JERR_FILE_READ, "Input file read error")
JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?")
JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet")
JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow")
JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry")
JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels")
JMESSAGE(JERR_INPUT_EMPTY, "Empty input file")
JMESSAGE(JERR_INPUT_EOF, "Premature end of input file")
JMESSAGE(JERR_MISMATCHED_QUANT_TABLE,
	 "Cannot transcode due to multiple use of quantization table %d")
JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data")
JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change")
JMESSAGE(JERR_NOTIMPL, "Not implemented yet")
JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time")
JMESSAGE(JERR_NO_ARITH_TABLE, "Arithmetic table 0x%02x was not defined")
JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported")
JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined")
JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image")
JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined")
JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x")
JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)")
JMESSAGE(JERR_QUANT_COMPONENTS,
	 "Cannot quantize more than %d color components")
JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors")
JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors")
JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers")
JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker")
JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x")
JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers")
JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF")
JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s")
JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file")
JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file")
JMESSAGE(JERR_TFILE_WRITE,
	 "Write failed on temporary file --- out of disk space?")
JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines")
JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x")
JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up")
JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation")
JMESSAGE(JERR_XMS_READ, "Read from XMS failed")
JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed")
JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT)
JMESSAGE(JMSG_VERSION, JVERSION)
JMESSAGE(JTRC_16BIT_TABLES,
	 "Caution: quantization tables are too coarse for baseline JPEG")
JMESSAGE(JTRC_ADOBE,
	 "Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d")
JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u")
JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u")
JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x")
JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x")
JMESSAGE(JTRC_DQT, "Define Quantization Table %d  precision %d")
JMESSAGE(JTRC_DRI, "Define Restart Interval %u")
JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u")
JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u")
JMESSAGE(JTRC_EOI, "End Of Image")
JMESSAGE(JTRC_HUFFBITS, "        %3d %3d %3d %3d %3d %3d %3d %3d")
JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d  %d")
JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE,
	 "Warning: thumbnail image size does not match data length %u")
JMESSAGE(JTRC_JFIF_EXTENSION,
	 "JFIF extension marker: type 0x%02x, length %u")
JMESSAGE(JTRC_JFIF_THUMBNAIL, "    with %d x %d thumbnail image")
JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u")
JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x")
JMESSAGE(JTRC_QUANTVALS, "        %4u %4u %4u %4u %4u %4u %4u %4u")
JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors")
JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors")
JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization")
JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d")
JMESSAGE(JTRC_RST, "RST%d")
JMESSAGE(JTRC_SMOOTH_NOTIMPL,
	 "Smoothing not supported with nonstandard sampling ratios")
JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d")
JMESSAGE(JTRC_SOF_COMPONENT, "    Component %d: %dhx%dv q=%d")
JMESSAGE(JTRC_SOI, "Start of Image")
JMESSAGE(JTRC_SOS, "Start Of Scan: %d components")
JMESSAGE(JTRC_SOS_COMPONENT, "    Component %d: dc=%d ac=%d")
JMESSAGE(JTRC_SOS_PARAMS, "  Ss=%d, Se=%d, Ah=%d, Al=%d")
JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s")
JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s")
JMESSAGE(JTRC_THUMB_JPEG,
	 "JFIF extension marker: JPEG-compressed thumbnail image, length %u")
JMESSAGE(JTRC_THUMB_PALETTE,
	 "JFIF extension marker: palette thumbnail image, length %u")
JMESSAGE(JTRC_THUMB_RGB,
	 "JFIF extension marker: RGB thumbnail image, length %u")
JMESSAGE(JTRC_UNKNOWN_IDS,
	 "Unrecognized component IDs %d %d %d, assuming YCbCr")
JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u")
JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u")
JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d")
JMESSAGE(JWRN_ARITH_BAD_CODE, "Corrupt JPEG data: bad arithmetic code")
JMESSAGE(JWRN_BOGUS_PROGRESSION,
	 "Inconsistent progression sequence for component %d coefficient %d")
JMESSAGE(JWRN_EXTRANEOUS_DATA,
	 "Corrupt JPEG data: %u extraneous bytes before marker 0x%02x")
JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment")
JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code")
JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d")
JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file")
JMESSAGE(JWRN_MUST_RESYNC,
	 "Corrupt JPEG data: found marker 0x%02x instead of RST%d")
JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG")
JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines")

#ifdef JMAKE_ENUM_LIST

  JMSG_LASTMSGCODE
} J_MESSAGE_CODE;

#undef JMAKE_ENUM_LIST
#endif /* JMAKE_ENUM_LIST */

/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */
#undef JMESSAGE

#ifndef JERROR_H
#define JERROR_H

/* Macros to simplify using the error and trace message stuff */
/* The first parameter is either type of cinfo pointer */

/* Fatal errors (print message and exit) */
#define ERREXIT(cinfo,code)  \
  ((cinfo)->err->msg_code = (code), \
   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
#define ERREXIT1(cinfo,code,p1)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
#define ERREXIT2(cinfo,code,p1,p2)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (cinfo)->err->msg_parm.i[1] = (p2), \
   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
#define ERREXIT3(cinfo,code,p1,p2,p3)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (cinfo)->err->msg_parm.i[1] = (p2), \
   (cinfo)->err->msg_parm.i[2] = (p3), \
   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
#define ERREXIT4(cinfo,code,p1,p2,p3,p4)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (cinfo)->err->msg_parm.i[1] = (p2), \
   (cinfo)->err->msg_parm.i[2] = (p3), \
   (cinfo)->err->msg_parm.i[3] = (p4), \
   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
#define ERREXIT6(cinfo,code,p1,p2,p3,p4,p5,p6)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (cinfo)->err->msg_parm.i[1] = (p2), \
   (cinfo)->err->msg_parm.i[2] = (p3), \
   (cinfo)->err->msg_parm.i[3] = (p4), \
   (cinfo)->err->msg_parm.i[4] = (p5), \
   (cinfo)->err->msg_parm.i[5] = (p6), \
   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
#define ERREXITS(cinfo,code,str)  \
  ((cinfo)->err->msg_code = (code), \
   strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))

#define MAKESTMT(stuff)		do { stuff } while (0)

/* Nonfatal errors (we can keep going, but the data is probably corrupt) */
#define WARNMS(cinfo,code)  \
  ((cinfo)->err->msg_code = (code), \
   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
#define WARNMS1(cinfo,code,p1)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
#define WARNMS2(cinfo,code,p1,p2)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (cinfo)->err->msg_parm.i[1] = (p2), \
   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))

/* Informational/debugging messages */
#define TRACEMS(cinfo,lvl,code)  \
  ((cinfo)->err->msg_code = (code), \
   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
#define TRACEMS1(cinfo,lvl,code,p1)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
#define TRACEMS2(cinfo,lvl,code,p1,p2)  \
  ((cinfo)->err->msg_code = (code), \
   (cinfo)->err->msg_parm.i[0] = (p1), \
   (cinfo)->err->msg_parm.i[1] = (p2), \
   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
#define TRACEMS3(cinfo,lvl,code,p1,p2,p3)  \
  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \
	   (cinfo)->err->msg_code = (code); \
	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4)  \
  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
	   (cinfo)->err->msg_code = (code); \
	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5)  \
  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
	   _mp[4] = (p5); \
	   (cinfo)->err->msg_code = (code); \
	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8)  \
  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
	   _mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \
	   (cinfo)->err->msg_code = (code); \
	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
#define TRACEMSS(cinfo,lvl,code,str)  \
  ((cinfo)->err->msg_code = (code), \
   strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))

#endif /* JERROR_H */


code:
/*
 * jmorecfg.h
 *
 * Copyright (C) 1991-1997, Thomas G. Lane.
 * Modified 1997-2011 by Guido Vollbeding.
 * This file is part of the Independent JPEG Group's software.
 * For conditions of distribution and use, see the accompanying README file.
 *
 * This file contains additional configuration options that customize the
 * JPEG software for special applications or support machine-dependent
 * optimizations.  Most users will not need to touch this file.
 */

/*
 * Define BITS_IN_JSAMPLE as either
 *   8   for 8-bit sample values (the usual setting)
 *   12  for 12-bit sample values
 * Only 8 and 12 are legal data precisions for lossy JPEG according to the
 * JPEG standard, and the IJG code does not support anything else!
 * We do not support run-time selection of data precision, sorry.
 */

#define BITS_IN_JSAMPLE  8	/* use 8 or 12 */

/*
 * Maximum number of components (color channels) allowed in JPEG image.
 * To meet the letter of the JPEG spec, set this to 255.  However, darn
 * few applications need more than 4 channels (maybe 5 for CMYK + alpha
 * mask).  We recommend 10 as a reasonable compromise; use 4 if you are
 * really short on memory.  (Each allowed component costs a hundred or so
 * bytes of storage, whether actually used in an image or not.)
 */

#define MAX_COMPONENTS  10	/* maximum number of image components */

/*
 * Basic data types.
 * You may need to change these if you have a machine with unusual data
 * type sizes; for example, "char" not 8 bits, "short" not 16 bits,
 * or "long" not 32 bits.  We don't care whether "int" is 16 or 32 bits,
 * but it had better be at least 16.
 */

/* Representation of a single sample (pixel element value).
 * We frequently allocate large arrays of these, so it's important to keep
 * them small.  But if you have memory to burn and access to char or short
 * arrays is very slow on your hardware, you might want to change these.
 */

#if BITS_IN_JSAMPLE == 8
/* JSAMPLE should be the smallest type that will hold the values 0..255.
 * You can use a signed char by having GETJSAMPLE mask it with 0xFF.
 */

#ifdef HAVE_UNSIGNED_CHAR

typedef unsigned char JSAMPLE;
#define GETJSAMPLE(value)  ((int) (value))

#else /* not HAVE_UNSIGNED_CHAR */

typedef char JSAMPLE;
#ifdef CHAR_IS_UNSIGNED
#define GETJSAMPLE(value)  ((int) (value))
#else
#define GETJSAMPLE(value)  ((int) (value) & 0xFF)
#endif /* CHAR_IS_UNSIGNED */

#endif /* HAVE_UNSIGNED_CHAR */

#define MAXJSAMPLE	255
#define CENTERJSAMPLE	128

#endif /* BITS_IN_JSAMPLE == 8 */

#if BITS_IN_JSAMPLE == 12
/* JSAMPLE should be the smallest type that will hold the values 0..4095.
 * On nearly all machines "short" will do nicely.
 */

typedef short JSAMPLE;
#define GETJSAMPLE(value)  ((int) (value))

#define MAXJSAMPLE	4095
#define CENTERJSAMPLE	2048

#endif /* BITS_IN_JSAMPLE == 12 */

/* Representation of a DCT frequency coefficient.
 * This should be a signed value of at least 16 bits; "short" is usually OK.
 * Again, we allocate large arrays of these, but you can change to int
 * if you have memory to burn and "short" is really slow.
 */

typedef short JCOEF;

/* Compressed datastreams are represented as arrays of JOCTET.
 * These must be EXACTLY 8 bits wide, at least once they are written to
 * external storage.  Note that when using the stdio data source/destination
 * managers, this is also the data type passed to fread/fwrite.
 */

#ifdef HAVE_UNSIGNED_CHAR

typedef unsigned char JOCTET;
#define GETJOCTET(value)  (value)

#else /* not HAVE_UNSIGNED_CHAR */

typedef char JOCTET;
#ifdef CHAR_IS_UNSIGNED
#define GETJOCTET(value)  (value)
#else
#define GETJOCTET(value)  ((value) & 0xFF)
#endif /* CHAR_IS_UNSIGNED */

#endif /* HAVE_UNSIGNED_CHAR */

/* These typedefs are used for various table entries and so forth.
 * They must be at least as wide as specified; but making them too big
 * won't cost a huge amount of memory, so we don't provide special
 * extraction code like we did for JSAMPLE.  (In other words, these
 * typedefs live at a different point on the speed/space tradeoff curve.)
 */

/* UINT8 must hold at least the values 0..255. */

#ifdef HAVE_UNSIGNED_CHAR
typedef unsigned char UINT8;
#else /* not HAVE_UNSIGNED_CHAR */
#ifdef CHAR_IS_UNSIGNED
typedef char UINT8;
#else /* not CHAR_IS_UNSIGNED */
typedef short UINT8;
#endif /* CHAR_IS_UNSIGNED */
#endif /* HAVE_UNSIGNED_CHAR */

/* UINT16 must hold at least the values 0..65535. */

#ifdef HAVE_UNSIGNED_SHORT
typedef unsigned short UINT16;
#else /* not HAVE_UNSIGNED_SHORT */
typedef unsigned int UINT16;
#endif /* HAVE_UNSIGNED_SHORT */

/* INT16 must hold at least the values -32768..32767. */

#ifndef XMD_H			/* X11/xmd.h correctly defines INT16 */
typedef short INT16;
#endif

/* INT32 must hold at least signed 32-bit values. */

#ifndef XMD_H			/* X11/xmd.h correctly defines INT32 */
#ifndef _BASETSD_H_		/* Microsoft defines it in basetsd.h */
#ifndef _BASETSD_H		/* MinGW is slightly different */
#ifndef QGLOBAL_H		/* Qt defines it in qglobal.h */
typedef long INT32;
#endif
#endif
#endif
#endif

/* Datatype used for image dimensions.  The JPEG standard only supports
 * images up to 64K*64K due to 16-bit fields in SOF markers.  Therefore
 * "unsigned int" is sufficient on all machines.  However, if you need to
 * handle larger images and you don't mind deviating from the spec, you
 * can change this datatype.
 */

typedef unsigned int JDIMENSION;

#define JPEG_MAX_DIMENSION  65500L  /* a tad under 64K to prevent overflows */

/* These macros are used in all function definitions and extern declarations.
 * You could modify them if you need to change function linkage conventions;
 * in particular, you'll need to do that to make the library a Windows DLL.
 * Another application is to make all functions global for use with debuggers
 * or code profilers that require it.
 */

/* a function called through method pointers: */
#define METHODDEF(type)		static type
/* a function used only in its module: */
#define LOCAL(type)		static type
/* a function referenced thru EXTERNs: */
#define GLOBAL(type)		type
/* a reference to a GLOBAL function: */
#define EXTERN(type)		extern type

/* This macro is used to declare a "method", that is, a function pointer.
 * We want to supply prototype parameters if the compiler can cope.
 * Note that the arglist parameter must be parenthesized!
 * Again, you can customize this if you need special linkage keywords.
 */

#ifdef HAVE_PROTOTYPES
#define JMETHOD(type,methodname,arglist)  type (*methodname) arglist
#else
#define JMETHOD(type,methodname,arglist)  type (*methodname) ()
#endif

/* Here is the pseudo-keyword for declaring pointers that must be "far"
 * on 80x86 machines.  Most of the specialized coding for 80x86 is handled
 * by just saying "FAR *" where such a pointer is needed.  In a few places
 * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol.
 */

#ifndef FAR
#ifdef NEED_FAR_POINTERS
#define FAR  far
#else
#define FAR
#endif
#endif

/*
 * On a few systems, type boolean and/or its values FALSE, TRUE may appear
 * in standard header files.  Or you may have conflicts with application-
 * specific header files that you want to include together with these files.
 * Defining HAVE_BOOLEAN before including jpeglib.h should make it work.
 */

#ifndef HAVE_BOOLEAN
typedef int boolean;
#endif
#ifndef FALSE			/* in case these macros already exist */
#define FALSE	0		/* values of boolean */
#endif
#ifndef TRUE
#define TRUE	1
#endif

/*
 * The remaining options affect code selection within the JPEG library,
 * but they don't need to be visible to most applications using the library.
 * To minimize application namespace pollution, the symbols won't be
 * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined.
 */

#ifdef JPEG_INTERNALS
#define JPEG_INTERNAL_OPTIONS
#endif

#ifdef JPEG_INTERNAL_OPTIONS

/*
 * These defines indicate whether to include various optional functions.
 * Undefining some of these symbols will produce a smaller but less capable
 * library.  Note that you can leave certain source files out of the
 * compilation/linking process if you've #undef'd the corresponding symbols.
 * (You may HAVE to do that if your compiler doesn't like null source files.)
 */

/* Capability options common to encoder and decoder: */

#define DCT_ISLOW_SUPPORTED	/* slow but accurate integer algorithm */
#define DCT_IFAST_SUPPORTED	/* faster, less accurate integer method */
#define DCT_FLOAT_SUPPORTED	/* floating-point: accurate, fast on fast HW */

/* Encoder capability options: */

#define C_ARITH_CODING_SUPPORTED    /* Arithmetic coding back end? */
#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
#define C_PROGRESSIVE_SUPPORTED	    /* Progressive JPEG? (Requires MULTISCAN)*/
#define DCT_SCALING_SUPPORTED	    /* Input rescaling via DCT? (Requires DCT_ISLOW)*/
#define ENTROPY_OPT_SUPPORTED	    /* Optimization of entropy coding parms? */
/* Note: if you selected 12-bit data precision, it is dangerous to turn off
 * ENTROPY_OPT_SUPPORTED.  The standard Huffman tables are only good for 8-bit
 * precision, so jchuff.c normally uses entropy optimization to compute
 * usable tables for higher precision.  If you don't want to do optimization,
 * you'll have to supply different default Huffman tables.
 * The exact same statements apply for progressive JPEG: the default tables
 * don't work for progressive mode.  (This may get fixed, however.)
 */
#define INPUT_SMOOTHING_SUPPORTED   /* Input image smoothing option? */

/* Decoder capability options: */

#define D_ARITH_CODING_SUPPORTED    /* Arithmetic coding back end? */
#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
#define D_PROGRESSIVE_SUPPORTED	    /* Progressive JPEG? (Requires MULTISCAN)*/
#define IDCT_SCALING_SUPPORTED	    /* Output rescaling via IDCT? */
#define SAVE_MARKERS_SUPPORTED	    /* jpeg_save_markers() needed? */
#define BLOCK_SMOOTHING_SUPPORTED   /* Block smoothing? (Progressive only) */
#undef  UPSAMPLE_SCALING_SUPPORTED  /* Output rescaling at upsample stage? */
#define UPSAMPLE_MERGING_SUPPORTED  /* Fast path for sloppy upsampling? */
#define QUANT_1PASS_SUPPORTED	    /* 1-pass color quantization? */
#define QUANT_2PASS_SUPPORTED	    /* 2-pass color quantization? */

/* more capability options later, no doubt */

/*
 * Ordering of RGB data in scanlines passed to or from the application.
 * If your application wants to deal with data in the order B,G,R, just
 * change these macros.  You can also deal with formats such as R,G,B,X
 * (one extra byte per pixel) by changing RGB_PIXELSIZE.  Note that changing
 * the offsets will also change the order in which colormap data is organized.
 * RESTRICTIONS:
 * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
 * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
 *    is not 3 (they don't understand about dummy color components!).  So you
 *    can't use color quantization if you change that value.
 */

#define RGB_RED		0	/* Offset of Red in an RGB scanline element */
#define RGB_GREEN	1	/* Offset of Green */
#define RGB_BLUE	2	/* Offset of Blue */
#define RGB_PIXELSIZE	3	/* JSAMPLEs per RGB scanline element */

/* Definitions for speed-related optimizations. */

/* If your compiler supports inline functions, define INLINE
 * as the inline keyword; otherwise define it as empty.
 */

#ifndef INLINE
#ifdef __GNUC__			/* for instance, GNU C knows about inline */
#define INLINE __inline__
#endif
#ifndef INLINE
#define INLINE			/* default is to define it as empty */
#endif
#endif

/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying
 * two 16-bit shorts is faster than multiplying two ints.  Define MULTIPLIER
 * as short on such a machine.  MULTIPLIER must be at least 16 bits wide.
 */

#ifndef MULTIPLIER
#define MULTIPLIER  int		/* type for fastest integer multiply */
#endif

/* FAST_FLOAT should be either float or double, whichever is done faster
 * by your compiler.  (Note that this type is only used in the floating point
 * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.)
 * Typically, float is faster in ANSI C compilers, while double is faster in
 * pre-ANSI compilers (because they insist on converting to double anyway).
 * The code below therefore chooses float if we have ANSI-style prototypes.
 */

#ifndef FAST_FLOAT
#ifdef HAVE_PROTOTYPES
#define FAST_FLOAT  float
#else
#define FAST_FLOAT  double
#endif
#endif

#endif /* JPEG_INTERNAL_OPTIONS */