/usr/include/mapserver/mapio.h is in libmapserver1-dev 6.4.1-5+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* $Id$
*
* Project: MapServer
* Purpose: Definitions for MapServer IO redirection capability.
* Author: Frank Warmerdam, warmerdam@pobox.com
*
******************************************************************************
* Copyright (c) 2004, Frank Warmerdam <warmerdam@pobox.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of this Software or works derived from this Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef MAPIO_H
#define MAPIO_H
/*
** We deliberately emulate stdio functions in the msIO cover functions.
** This makes it easy for folks to understand the semantics, and means we
** can just #define things to use stdio in the simplest case.
*/
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MS_PRINT_FUNC_FORMAT
#if defined(__GNUC__) && __GNUC__ >= 3 && !defined(DOXYGEN_SKIP)
#define MS_PRINT_FUNC_FORMAT( format_idx, arg_idx ) __attribute__((__format__ (__printf__, format_idx, arg_idx)))
#else
#define MS_PRINT_FUNC_FORMAT( format_idx, arg_idx )
#endif
#endif
/* stdio analogs */
int MS_DLL_EXPORT msIO_printf( const char *format, ... ) MS_PRINT_FUNC_FORMAT(1,2);
int MS_DLL_EXPORT msIO_fprintf( FILE *stream, const char *format, ... ) MS_PRINT_FUNC_FORMAT(2,3);
int MS_DLL_EXPORT msIO_fwrite( const void *ptr, size_t size, size_t nmemb, FILE *stream );
int MS_DLL_EXPORT msIO_fread( void *ptr, size_t size, size_t nmemb, FILE *stream );
int MS_DLL_EXPORT msIO_vfprintf( FILE *fp, const char *format, va_list ap );
#ifdef USE_GD
gdIOCtx MS_DLL_EXPORT *msIO_getGDIOCtx( FILE *fp );
#endif
/*
** Definitions for the callback function and the details of the IO
** channel contexts.
*/
typedef int (*msIO_llReadWriteFunc)( void *cbData, void *data, int byteCount );
typedef struct msIOContext_t {
const char *label;
int write_channel; /* 1 for stdout/stderr, 0 for stdin */
msIO_llReadWriteFunc readWriteFunc;
void *cbData;
} msIOContext;
int MS_DLL_EXPORT msIO_installHandlers( msIOContext *stdin_context,
msIOContext *stdout_context,
msIOContext *stderr_context );
msIOContext MS_DLL_EXPORT *msIO_getHandler( FILE * );
void msIO_setHeader (const char *header, const char* value, ...) MS_PRINT_FUNC_FORMAT(2,3);
void msIO_sendHeaders(void);
/*
** These can be used instead of the stdio style functions if you have
** msIOContext's for the channel in question.
*/
int msIO_contextRead( msIOContext *context, void *data, int byteCount );
int msIO_contextWrite( msIOContext *context, const void *data, int byteCount );
/*
** For redirecting IO to a memory buffer.
*/
typedef struct {
unsigned char *data;
int data_len; /* really buffer length */
int data_offset; /* really buffer used */
} msIOBuffer;
int MS_DLL_EXPORT msIO_bufferRead( void *, void *, int );
int MS_DLL_EXPORT msIO_bufferWrite( void *, void *, int );
void MS_DLL_EXPORT msIO_resetHandlers(void);
void MS_DLL_EXPORT msIO_installStdoutToBuffer(void);
void MS_DLL_EXPORT msIO_installStdinFromBuffer(void);
void MS_DLL_EXPORT msIO_Cleanup(void);
char MS_DLL_EXPORT *msIO_stripStdoutBufferContentType(void);
void MS_DLL_EXPORT msIO_stripStdoutBufferContentHeaders(void);
/* this is just for setting normal stdout's to binary mode on windows */
int msIO_needBinaryStdout( void );
int msIO_needBinaryStdin( void );
#ifdef __cplusplus
}
#endif
#endif /* nef MAPIO_H */
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