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      $Header: /pub/cvsroot/yencode/src/file.h,v 1.22 2002/03/21 04:58:31 bboy Exp $

      Copyright (C) 2002  Don Moore <bboy@bboy.net>

      This program is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published by
      the Free Software Foundation; either version 2 of the License, or
      (at Your option) any later version.

      This program is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      GNU General Public License for more details.

      You should have received a copy of the GNU General Public License
      along with this program; if not, write to the Free Software
      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef _YFILE_H
#define _YFILE_H

/* Default extensions for sorting first (in yencfile_cmp) */
#define     DEFAULT_SORT_FIRST_EXTENSIONS "nfo,crc,sfv,m3u,par,rar,zip,arj,ace"

/* (ydecode) yEncode header information */
typedef struct _ydecode_yheader
      int                     *part;      /* Part number (if multipart) */
      int                     *total;     /* Total number of parts */
      unsigned long     *line;      /* Average line length */
      size_t                  *size;      /* Final, overall file size (of all parts) */
      char                    *name;      /* Name of the final output file */
      unsigned long     *begin;     /* Begin offset (should be in `part' but may appear here) */
      unsigned long     *end;       /* End offset (should be in `part' but may appear here) */

/* (ydecode) yEncode multipart file information */
typedef struct _ydecode_ypart
      unsigned long     *begin;
      unsigned long     *end;
      size_t                  size;             /* Size of part, used by `ypost' */

/* (ydecode) yEncode footer information */
typedef struct _ydecode_yfooter
      size_t                  *size;      /* If NULL, no size was specified */
      int                     *part;      /* If NULL, no part was specified */
      crc32_t                 *pcrc32;    /* If NULL, no pcrc32 was specified. */
      crc32_t                 *crc32;     /* If NULL, no crc32 was specified */

/* (ydecode) Structure containing information about one file */
typedef struct _ydecode_fileinfo
      char              *input_filename;        /* Name of the input file (if any) */
      struct stat *input_st;                    /* Input file status information */
      char              *output_filename;       /* Name of the output file */

      YHEADER           *header;                            /* Header information */
      YPART             *part;                              /* Multipart file information */
      YFOOTER           *footer;                            /* Footer information */

      unsigned long     line_offset;            /* Line number where data begins */
      unsigned long     data_start;             /* Offset where the actual file data begins */
      int                     multipart;              /* Is this a multipart file? */

/* Special file types for a YENCFILE */
typedef enum _yencfile_special_types
} ysupportfile_t;

/* Part information for a single yenc part */
typedef struct _yencfile_part
      unsigned long begin, end;
      size_t size;

/* (yencode/ypost) Structure containing information about one file */
typedef struct _yencfile
      char                    *input_filename;                    /* Name of input file */
      crc32_t                 crc;                                            /* CRC of binary data */
      int                     ok;                                             /* Did encoding succeed? */

      /* yencode only: */
      char                    *output_prefix;                     /* Output file name prefix */

      /* ypost only: */
      size_t                  filesize;                                 /* Size of file */
      size_t                  encsize;                                        /* Size of file AFTER ENCODING */
      int                     enclines;                                 /* Number of lines of encoded data */
      size_t                  totalparts;                               /* Total number of parts to post for this file */
      ysupportfile_t    file_type;                                /* Type of file if special */
      unsigned char     *support_data;                            /* Data for special file types */
      YENCPART                **part;                                         /* Begin/end information for each part */

/* Comparison function for sorting file list */
extern int ydecfile_cmp(const void *p1, const void *p2);

/* Add a file to a list of files */
extern YDECFILE *ydecfile_create(const char *filename, int strict);

/* Create and initialize a new yencfile part */
extern YENCPART *yencpart_create(void);

/* Seed the "sort first" extension list used by yencfile_cmp() */
extern void yencfile_seed_sort_first_extensions(const char *seedstr);

/* Comparison function for sorting YENCFILE lists */
extern int yencfile_cmp(const void *p1, const void *p2);

/* Function to create a new YENCFILE structure */
extern YENCFILE *yencfile_create(const char *input_filename, const char *output_dir,
                                                                  ysupportfile_t special_file_type, size_t multipart_size);

#endif /* !_YFILE_H */

/* vi:set ts=3: */

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