/* * This file is part of uudeview, the simple and friendly multi-part multi- * file uudecoder program (c) 1994-2001 by Frank Pilhofer. The author may * be contacted at fp@fpx.de * * 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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef __UUINT_H__ #define __UUINT_H__ /* * This file describes the internal structures, variables and definitions * of UUDeview. It should not be included from other packages. Subject to * change without notice. Do not depend on anything here. * * $Id: uuint.h,v 1.6 2003/11/06 13:33:41 root Exp $ */ /* * Busy Polls will be made after processing ... lines */ #define BUSY_LINE_TICKS 50 /* * States of MIME scanner */ #define MS_HEADERS 1 /* still inside of headers */ #define MS_BODY 2 /* body of `simple' messages */ #define MS_PREAMBLE 3 /* preamble of Multipart/Mixed */ #define MS_SUBPART 4 /* within one of the Multiparts */ #define MS_EPILOGUE 5 /* epilogue of Multipart/Mixed */ /* * Number of subsequent encoded lines we require to believe this * is valid data. */ #define ELC_COUNT 4 /* * Flags a part may have. FL_PROPER means that we are sure about the file's * encoding, beginning and end, and don't have to use special care when de- * coding. */ #define FL_NONE 0 /* no flag, just plain normal */ #define FL_SINGLE 1 /* standalone MSG, do not mix */ #define FL_PARTIAL 2 /* from Message/Partial */ #define FL_PROPER 4 /* proper MIME part */ #define FL_TOEND 8 /* part continues to EOF */ /* * Auxiliary macro: compute the percentage of a against b. * The obvious answer is (100*a)/b, but this overflows for large a. * a/(b/100) is better; we use a/((b/100)+1) so that we don't divide * by zero for b<100 and the result doesn't become larger than 100% */ #define UUPERCENT(a,b) ((int) ((unsigned long)(a) / \ (((unsigned long)(b)/100)+1))) /* * Make the Busy Callback easier. The macro returns true if the BusyCallback * wants us to terminate. */ extern unsigned long uuyctr; #define UUBUSYPOLL(a,b) (((++uuyctr%BUSY_LINE_TICKS)==0) ? (progress.percent=UUPERCENT((a),(b)),UUBusyPoll()):0) /* * How many lines of headers do we need to believe another mail * header is approaching? Use more restrictive values for MIME * mails, less restrictive for Freestyle */ typedef struct { int restart; /* restarting after a MIME body (not subpart) */ int afterdata; /* after we had useful data in freestyle mode */ int afternl; /* after an empty line in freestyle mode */ } headercount; extern headercount hlcount; /* * Information from the headers of a message. Each instance must * have its very own copy of the strings. If `mimevers' is NULL, * then this message does not comply to the MIME standard. */ typedef struct _headers { char *from; /* From: */ char *subject; /* Subject: */ char *rcpt; /* To: */ char *date; /* Date: */ char *mimevers; /* MIME-Version: */ char *ctype; /* Content-Type: */ char *ctenc; /* Content-Transfer-Encoding: */ char *fname; /* Potential Filename from Content-Type Parameter */ char *boundary; /* MIME-Boundary from Content-Type Parameter */ char *mimeid; /* MIME-Id for Message/Partial */ int partno; /* part number for Message/Partial */ int numparts; /* number of parts for Message/Partial */ } headers; /* * Scanner state */ typedef struct _scanstate { int isfolder; /* if we think this is a valid email folder */ int ismime; /* if we are within a valid MIME message */ int mimestate; /* state of MIME scanner */ int mimeenc; /* encoding of this MIME file */ char *source; /* source filename */ headers envelope; /* mail envelope headers */ } scanstate; /* * Structure that holds the information for a single file / part of * a file. If a subject line is encountered, it is copied to subject; * if a begin is found, the mode and name of the file is extracted. * flags are set if 'begin' or 'end' is detected and 'uudet' if valid * uuencoded data is found. If the file contains a 'From:' line with * a '@' in it (indicating an origin email address), it is preserved * in 'origin'. **/ typedef struct _fileread { char *subject; /* Whole subject line */ char *filename; /* Only filled in if begin detected */ char *origin; /* Whole 'From:' line */ char *mimeid; /* the ID for Mime-encoded files */ char *mimetype; /* Content-Type */ short mode; /* Mode of File (from 'begin') */ int begin; /* begin detected */ int end; /* end detected */ int flags; /* associated flags */ short uudet; /* valid encoded data. value indicates encoding */ short partno; /* Mime-files have a part number within */ short maxpno; /* ... plus the total number of parts */ char *sfname; /* Associated source file */ long startpos; /* ftell() position where data starts */ long length; /* length of data */ } fileread; /* * Structure for holding one part of a file, with some more information * about it. The UUPreProcessPart() function takes one a fileread structure * and produces this uufile structure. * Linked List, ordered by partno. **/ typedef struct _uufile { char *filename; char *subfname; char *mimeid; char *mimetype; short partno; fileread *data; struct _uufile *NEXT; } uufile; extern void *uu_MsgCBArg; extern void *uu_BusyCBArg; extern void *uu_FileCBArg; extern void *uu_FFCBArg; extern void *uu_FNCBArg; /* * variables */ extern int uu_fast_scanning; extern int uu_bracket_policy; extern int uu_verbose; extern int uu_desperate; extern int uu_ignreply; extern int uu_debug; extern int uu_errno; extern int uu_dumbness; extern int uu_overwrite; extern int uu_ignmode; extern int uu_headercount; extern int uu_usepreamble; extern int uu_handletext; extern int uu_tinyb64; extern int uu_remove_input; extern int uu_more_mime; extern int uu_dotdot; extern char *uusavepath; extern char *uuencodeext; /* * Encoding/Decoding tables */ extern unsigned char UUEncodeTable[]; extern unsigned char XXEncodeTable[]; extern unsigned char B64EncodeTable[]; extern unsigned char BHEncodeTable[]; /* * String tables from uustring.c */ extern char *msgnames[]; extern char *codenames[]; extern char *uuretcodes[]; extern uulist *UUGlobalFileList; /* * State of MIME variables and current progress */ extern int nofnum, mssdepth; extern int mimseqno, lastvalid; extern int lastenc; extern scanstate multistack[]; extern headers localenv; extern scanstate sstate; extern uuprogress progress; /* * mallocable areas */ extern char *uugen_fnbuffer, *uugen_inbuffer; extern char *uucheck_lastname, *uucheck_tempname; extern char *uuestr_itemp, *uuestr_otemp; extern char *uulib_msgstring, *uuncdl_fulline; extern char *uuncdp_oline, *uuscan_shlline, *uuscan_shlline2; extern char *uuscan_pvvalue, *uuscan_phtext; extern char *uuscan_sdline, *uuscan_sdbhds1; extern char *uuscan_sdbhds2, *uuscan_spline; extern char *uuutil_bhwtmp; extern char *uunconc_UUxlat, *uunconc_UUxlen; extern char *uunconc_B64xlat, *uunconc_XXxlat; extern char *uunconc_BHxlat, *uunconc_save; #ifdef __cplusplus extern "C" { #endif extern void (*uu_MsgCallback) (void *, char *, int); extern int (*uu_BusyCallback) (void *, uuprogress *); extern int (*uu_FileCallback) (void *, char *, char *, int); extern char * (*uu_FNameFilter) (void *, char *); extern char * (*uu_FileNameCallback)(void *, char *, char *); /* * Functions from uulib.c that aren't defined in * Be careful about the definition with variable arguments. */ #if defined(STDC_HEADERS) || defined(HAVE_STDARG_H) int UUMessage (char *, int, int, char *, ...); #else int UUMessage (); #endif int UUBusyPoll (void); /* * Functions from uucheck.c */ uufile * UUPreProcessPart (fileread *, int *); int UUInsertPartToList (uufile *); uulist * UUCheckGlobalList (void); /* * Functions from uuutil.c */ void UUkillfread (fileread *); void UUkillfile (uufile *); void UUkilllist (uulist *); void UUkillheaders (headers *); fileread * ScanPart (FILE *, char *, int *); int UUbhdecomp (char *, char *, char *, int *, size_t, size_t, size_t *); size_t UUbhwrite (char *, size_t, size_t, FILE *); /* * Functions from uunconc.c */ int UURepairData (FILE *, char *, int, int *); void UUInitConc _ANSI_ARGS_((void)); int UUValidData _ANSI_ARGS_((char *, int, int *)); size_t UUDecodeLine _ANSI_ARGS_((char *, char *, int)); int UUDecodeField _ANSI_ARGS_((char *, char *, int)); int UUDecodePart _ANSI_ARGS_((FILE *, FILE *, int *, long, int, int, char *)); int UUDecode _ANSI_ARGS_((uulist *)); /* * Message retrieval from uustring.c */ char * uustring (int); /* * From uuscan.c */ int UUScanHeader (FILE *, headers *); #ifdef __cplusplus } #endif #endif