| /* |
| * Private file definitions for CUPS. |
| * |
| * Since stdio files max out at 256 files on many systems, we have to |
| * write similar functions without this limit. At the same time, using |
| * our own file functions allows us to provide transparent support of |
| * gzip'd print files, PPD files, etc. |
| * |
| * Copyright 2007-2014 by Apple Inc. |
| * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
| * |
| * These coded instructions, statements, and computer programs are the |
| * property of Apple Inc. and are protected by Federal copyright |
| * law. Distribution and use rights are outlined in the file "LICENSE.txt" |
| * which should have been included with this file. If this file is |
| * file is missing or damaged, see the license at "http://www.cups.org/". |
| * |
| * This file is subject to the Apple OS-Developed Software exception. |
| */ |
| |
| #ifndef _CUPS_FILE_PRIVATE_H_ |
| # define _CUPS_FILE_PRIVATE_H_ |
| |
| /* |
| * Include necessary headers... |
| */ |
| |
| # include "cups-private.h" |
| # include <stdio.h> |
| # include <stdlib.h> |
| # include <stdarg.h> |
| # include <fcntl.h> |
| |
| # ifdef HAVE_LIBZ |
| # include <zlib.h> |
| # endif /* HAVE_LIBZ */ |
| # ifdef WIN32 |
| # include <io.h> |
| # include <sys/locking.h> |
| # endif /* WIN32 */ |
| |
| |
| /* |
| * Some operating systems support large files via open flag O_LARGEFILE... |
| */ |
| |
| # ifndef O_LARGEFILE |
| # define O_LARGEFILE 0 |
| # endif /* !O_LARGEFILE */ |
| |
| |
| /* |
| * Some operating systems don't define O_BINARY, which is used by Microsoft |
| * and IBM to flag binary files... |
| */ |
| |
| # ifndef O_BINARY |
| # define O_BINARY 0 |
| # endif /* !O_BINARY */ |
| |
| |
| # ifdef __cplusplus |
| extern "C" { |
| # endif /* __cplusplus */ |
| |
| |
| /* |
| * Types and structures... |
| */ |
| |
| typedef enum /**** _cupsFileCheck return values ****/ |
| { |
| _CUPS_FILE_CHECK_OK = 0, /* Everything OK */ |
| _CUPS_FILE_CHECK_MISSING = 1, /* File is missing */ |
| _CUPS_FILE_CHECK_PERMISSIONS = 2, /* File (or parent dir) has bad perms */ |
| _CUPS_FILE_CHECK_WRONG_TYPE = 3, /* File has wrong type */ |
| _CUPS_FILE_CHECK_RELATIVE_PATH = 4 /* File contains a relative path */ |
| } _cups_fc_result_t; |
| |
| typedef enum /**** _cupsFileCheck file type values ****/ |
| { |
| _CUPS_FILE_CHECK_FILE = 0, /* Check the file and parent directory */ |
| _CUPS_FILE_CHECK_PROGRAM = 1, /* Check the program and parent directory */ |
| _CUPS_FILE_CHECK_FILE_ONLY = 2, /* Check the file only */ |
| _CUPS_FILE_CHECK_DIRECTORY = 3 /* Check the directory */ |
| } _cups_fc_filetype_t; |
| |
| typedef void (*_cups_fc_func_t)(void *context, _cups_fc_result_t result, |
| const char *message); |
| |
| struct _cups_file_s /**** CUPS file structure... ****/ |
| |
| { |
| int fd; /* File descriptor */ |
| char mode, /* Mode ('r' or 'w') */ |
| compressed, /* Compression used? */ |
| is_stdio, /* stdin/out/err? */ |
| eof, /* End of file? */ |
| buf[4096], /* Buffer */ |
| *ptr, /* Pointer into buffer */ |
| *end; /* End of buffer data */ |
| off_t pos, /* Position in file */ |
| bufpos; /* File position for start of buffer */ |
| |
| #ifdef HAVE_LIBZ |
| z_stream stream; /* (De)compression stream */ |
| Bytef cbuf[4096]; /* (De)compression buffer */ |
| uLong crc; /* (De)compression CRC */ |
| #endif /* HAVE_LIBZ */ |
| |
| char *printf_buffer; /* cupsFilePrintf buffer */ |
| size_t printf_size; /* Size of cupsFilePrintf buffer */ |
| }; |
| |
| |
| /* |
| * Prototypes... |
| */ |
| |
| extern _cups_fc_result_t _cupsFileCheck(const char *filename, |
| _cups_fc_filetype_t filetype, |
| int dorootchecks, |
| _cups_fc_func_t cb, |
| void *context); |
| extern void _cupsFileCheckFilter(void *context, |
| _cups_fc_result_t result, |
| const char *message); |
| |
| # ifdef __cplusplus |
| } |
| # endif /* __cplusplus */ |
| |
| #endif /* !_CUPS_FILE_PRIVATE_H_ */ |