/* $Id: filter.h,v 5.11 1993/08/03 19:28:39 syd Exp $ */ /******************************************************************************* * The Elm Mail System - $Revision: 5.11 $ $State: Exp $ * * Copyright (c) 1988-1992 USENET Community Trust * Copyright (c) 1986,1987 Dave Taylor ******************************************************************************* * Bug reports, patches, comments, suggestions should be sent to: * * Syd Weinstein, Elm Coordinator * elm@DSI.COM dsinc!elm * ******************************************************************************* * $Log: filter.h,v $ * Revision 5.11 1993/08/03 19:28:39 syd * Elm tries to replace the system toupper() and tolower() on current * BSD systems, which is unnecessary. Even worse, the replacements * collide during linking with routines in isctype.o. This patch adds * a Configure test to determine whether replacements are really needed * (BROKE_CTYPE definition). The header file is now included * globally through hdrs/defs.h and the BROKE_CTYPE patchup is handled * there. Inclusion of was removed from *all* the individual * files, and the toupper() and tolower() routines in lib/opt_utils.c * were dropped. * From: chip@chinacat.unicom.com (Chip Rosenthal) * * Revision 5.10 1993/06/06 17:34:40 syd * remove useless _vbuf definition * * Revision 5.9 1993/04/16 04:16:24 syd * For convex, #if-defed memcpy, memset and sleep. * From: rzm@oso.chalmers.se (Rafal Maszkowski) * * Revision 5.8 1993/04/12 03:30:23 syd * On AIX, __STDC__ is not defined but it does use unistd.h, etc. In * hdrs/def.h, ANS_C already gets defined if __STDC__ or _AIX. But this * variable then needs to be used in src/init.c and hdrs/filter.h in place * of the current test for __STDC__. * From: rstory@elegant.com (Robert Story) * * Revision 5.7 1993/04/12 03:25:26 syd * Use I_UNISTD instead of UNISTD_H * * Revision 5.6 1993/04/12 03:22:49 syd * Add UNISTD_H to check for unistd.h include * From: Syd * * Revision 5.5 1993/02/03 17:12:53 syd * move more declarations to defs.h, including sleep * From: Syd * * Revision 5.4 1993/01/27 19:45:15 syd * Filter turns spaces in quoted strings into _ and then back again. This destroys * any _ that where there in the first place. This patch removes that. * Also fixed a minor bug where 'filter -r' wrote out the wrong thing if the * relation in a rule was '~'. * From: Jan Djarv * * Revision 5.3 1992/11/15 01:42:57 syd * Add regexp processing to filter. * Add execc operator * From: Jan Djarv * * Revision 5.2 1992/10/24 14:20:24 syd * remove the 25 (MAXRULES) limitation. * Basically it mallocs rules in hunks of RULESINC (25) as it goes along. * From: Jan Djarv * * Revision 5.1 1992/10/03 22:34:39 syd * Initial checkin as of 2.4 Release at PL0 * * ******************************************************************************/ /** Headers for the filter program. **/ #include "regexp.h" /** define a few handy macros for later use... **/ #define the_same(a,b) (strncmp(a,b,strlen(b)) == 0) #define relationname(x) \ (x == 1?"<=":x==2?"<":x==3?">=":x==4?">":x==5?"!=":x==6?"=":"~") #define quoteit(x,y) (x == LINES? "" : y == RE ? "/" : "\"") #define remove_return(s) { if (s[strlen(s)-1] == '\n') \ s[strlen(s)-1] = '\0'; \ } /** some of the files we'll be using, where they are, and so on... **/ #define filter_temp "/tmp/filter" #define FILTERFILE ".elm/filter-rules" #define filterlog ".elm/filterlog" #define filtersum ".elm/filtersum" #define EMERGENCY_MAILBOX "EMERGENCY_MBOX" #define EMERG_MBOX "MBOX.EMERGENCY" /** an arbitrary number for allocating purposes **/ #define RULESINC 25 /* alloc this many rules at a time */ /** some random defines for mnemonic stuff in the program... **/ #ifdef SUBJECT # undef SUBJECT #endif #ifdef SENDER # undef SENDER #endif #define TO 1 #define FROM 2 #define LINES 3 #define SUBJECT 4 #define CONTAINS 5 #define ALWAYS 6 #define DELETE_MSG 7 #define SAVE 8 #define SAVECC 9 #define FORWARD 10 #define LEAVE 11 #define EXEC 12 #define FORWARDC 13 #define SENDER 14 #define EXECC 15 #define FAILED_SAVE 20 /** Some conditionals... **/ #define LE 1 #define LT 2 #define GE 3 #define GT 4 #define NE 5 #define EQ 6 #define RE 7 /** A funky way to open a file using open() to avoid file locking hassles **/ #define FOLDERMODE O_WRONLY | O_APPEND | O_CREAT | O_SYNCIO /** cheap but easy way to have two files share the same #include file **/ #ifdef MAIN_ROUTINE char home[SLEN], /* the users home directory */ hostname[SLEN], /* the machine name... */ username[SLEN]; /* the users login name... */ char to[VERY_LONG_STRING], from[LONG_STRING], subject[LONG_STRING], /* from current message */ sender[LONG_STRING]; /* from current message */ FILE *outfd; char outfname[SLEN]; char filterfile[SLEN]; nl_catd elm_msg_cat = 0; /* message catalog */ int total_rules = 0, /* how many rules to check */ sizeof_rules = 0, /* how big is rules array? */ show_only = FALSE, /* just for show? */ long_summary = FALSE, /* what sorta summary?? */ verbose = FALSE, /* spit out lots of stuff */ lines = 0, /* lines in message.. */ clear_logs = FALSE, /* clear files after sum? */ already_been_forwarded = FALSE, /* has this been filtered? */ log_actions_only = FALSE, /* log actions | everything */ logging = TRUE, /* should we log actions */ printing_rules = FALSE, /* are we just using '-r'? */ rule_choosen, /* which one we choose */ user_uid = -1, /* actual user id */ user_gid = -1; /* actual group id */ #else extern char home[SLEN], /* the users home directory */ hostname[SLEN], /* the machine name... */ username[SLEN]; /* the users login name... */ extern char to[VERY_LONG_STRING], from[LONG_STRING], subject[LONG_STRING], /* from current message */ sender[LONG_STRING]; /* from current message */ extern FILE *outfd; extern char outfname[SLEN]; extern char filterfile[SLEN]; extern nl_catd elm_msg_cat; /* message catalog */ extern int total_rules, /* how many rules to check */ sizeof_rules, /* how big is rules array? */ show_only, /* just for show? */ long_summary, /* what sorta summary?? */ verbose, /* spit out lots of stuff */ lines, /* lines in message.. */ clear_logs, /* clear files after sum? */ already_been_forwarded, /* has this been filtered? */ log_actions_only, /* log actions | everything */ logging, /* should we log actions */ printing_rules, /* are we just using '-r'? */ rule_choosen, /* which one we choose */ user_uid, /* actual user id */ user_gid; /* actual group id */ #endif /** and our ruleset record structure... **/ struct condition_rec { int matchwhat; /* type of 'if' clause */ int relation; /* type of match (eq, etc) */ char argument1[SLEN]; /* match against this */ regexp *regex; /* compiled regexp */ struct condition_rec *next; /* next condition... */ }; struct ruleset_record { int line; /* line in rules file */ struct condition_rec *condition; int action; /* what action to take */ char argument2[SLEN]; /* argument for action */ }; #ifdef MAIN_ROUTINE struct ruleset_record *rules; #else extern struct ruleset_record *rules; #endif /** finally let's keep LINT happy with the return values of all these pups! ***/ char *itoa(); #ifdef ANSI_C /*{ANSI_C*/ #include # ifdef I_UNISTD /* unistd.h available */ # include # else /* I_UNISTD */ unsigned long sleep(); # endif /* I_UNISTD */ #else /*}ANSI_C{*/ unsigned short getuid(); #if defined(__convexc__) unsigned sleep(); #else unsigned long sleep(); #endif char *strcpy(), *strcat(); #ifdef BSD FILE *popen(); #endif #endif /*}ANSI_C*/