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C/C++ Source or Header | 1993-05-08 | 19.5 KB | 629 lines

/* $Id: defs.h,v 5.27 1993/05/08 19:41:13 syd Exp $ */ /******************************************************************************* * The Elm Mail System - $Revision: 5.27 $ $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: defs.h,v $ * Revision 5.27 1993/05/08 19:41:13 syd * make it now depend on mallocvoid * * Revision 5.26 1993/04/16 04:16:24 syd * For convex, #if-defed memcpy, memset and sleep. * From: rzm@oso.chalmers.se (Rafal Maszkowski) * * Revision 5.25 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 5.24 1993/04/12 03:25:26 syd * Use I_UNISTD instead of UNISTD_H * * Revision 5.23 1993/04/12 03:22:49 syd * Add UNISTD_H to check for unistd.h include * From: Syd * * Revision 5.22 1993/04/12 01:51:42 syd * Added safe_malloc(), safe_realloc(), and safe_strdup(). They * will be used in the new elmalias utility. * From: chip@chinacat.unicom.com (Chip Rosenthal) * * Revision 5.21 1993/02/09 15:31:10 syd * Make the str declare symbol ANSI_C, our contrived symbol * so IBM compiles work ok. * From: Syd * * Revision 5.20 1993/02/07 15:12:50 syd * fix declaration of fseek, it was of the wrong type (sb int, was long) * * Revision 5.19 1993/02/03 17:12:53 syd * move more declarations to defs.h, including sleep * From: Syd * * Revision 5.18 1993/02/03 16:56:24 syd * add unistd.h for include of lseek/fseek on stdc compilers * From: Syd via prompt from mfvargo@netcom.com (Michael Vargo) * * Revision 5.17 1993/02/03 16:18:17 syd * add strtokq * From: Syd * * Revision 5.16 1993/01/20 03:02:19 syd * Move string declarations to defs.h * From: Syd * * Revision 5.15 1993/01/20 02:56:38 syd * hide index and rindex declarations inside __STDC__ so AIX doesnt see it * * Revision 5.14 1993/01/19 05:07:05 syd * Trim erroreous extra log entry * From: Syd * * Revision 5.13 1993/01/19 04:47:12 syd * Significant changes to provide consistent Date and From_ header * cracking. Overhauled date utilities and moved into library. Moved * real_from() into library. Modified frm, newmail, and readmsg utilities * to use library version of real_from(). Moved get_word() from Elm * source into library. Added new library routines atonum() and strfcpy(). * Fixed trailing backslash bug in len_next(). * From: chip@chinacat.unicom.com (Chip Rosenthal) * * Revision 5.12 1993/01/05 03:36:10 syd * remove leading 0s from access() defs as it confuses some * compilers (and I know it shouldnt) * From: Syd * * Revision 5.11 1992/12/11 01:58:50 syd * Allow for use from restricted shell by putting SHELL=/bin/sh in the * environment of spawned mail transport program. * From: chip@tct.com (Chip Salzenberg) * * Revision 5.10 1992/12/11 01:29:27 syd * add include of sys/types.h for time_t usage * * Revision 5.9 1992/12/07 02:47:45 syd * fix time variables that are not declared time_t * From: Syd via prompting from Jim Brown * * Revision 5.8 1992/11/26 01:46:26 syd * add Decode option to copy_message, convert copy_message to * use bit or for options. * From: Syd and bjoerns@stud.cs.uit.no (Bjoern Stabell) * * Revision 5.7 1992/11/22 01:22:29 syd * This mod fixes overlapping prototypes for strchr and index on * Convex. * From: Jukka Ukkonen <ukkonen@csc.fi> * * Revision 5.6 1992/11/07 20:40:27 syd * flag for no tite for curses calls * * Revision 5.5 1992/11/07 20:05:52 syd * change to use header_cmp to allow for linear white space around the colon * From: Syd * * Revision 5.4 1992/10/27 01:40:08 syd * fix compilation error on posix_signals for non STDC * From: tom@osf.org * * Revision 5.3 1992/10/25 02:01:58 syd * Here are the patches to support POSIX sigaction(). * From: tom@osf.org * * Revision 5.2 1992/10/25 01:47:45 syd * fixed a bug were elm didn't call metamail on messages with a characterset, * which could be displayed by elm itself, but message is encoded with QP * or BASE64 * From: Klaus Steinberger <Klaus.Steinberger@Physik.Uni-Muenchen.DE> * * Revision 5.1 1992/10/03 22:34:39 syd * Initial checkin as of 2.4 Release at PL0 * * ******************************************************************************/ /** define file for ELM mail system. **/ #include <sys/types.h> /* for fundamental types */ #include "../config.h" #include "sysdefs.h" /* system/configurable defines */ # define VERSION "2.4" /* Version number... */ # define VERS_DATE "October 1, 1992" /* for elm -v option */ # define WHAT_STRING \ "@(#) Version 2.4, USENET supported version, released October 1, 1992" #if defined(__STDC__) || defined(_AIX) # define ANSI_C 1 #endif #define KLICK 25 #define SLEN 256 /* long for ensuring no overwrites... */ #define SHORT 10 /* super short strings! */ #define NLEN 48 /* name length for aliases */ #define WLEN 20 #define STRING 128 /* reasonable string length for most.. */ #define LONG_STRING 512 /* even longer string for group expansion */ #define VERY_LONG_STRING 2560 /* huge string for group alias expansion */ #define MAX_LINE_LEN 5120 /* even bigger string for "filter" prog.. */ #define BREAK '\0' /* default interrupt */ #define BACKSPACE '\b' /* backspace character */ #define TAB '\t' /* tab character */ #define RETURN '\r' /* carriage return char */ #define LINE_FEED '\n' /* line feed character */ #define FORMFEED '\f' /* form feed (^L) char */ #define COMMA ',' /* comma character */ #define SPACE ' ' /* space character */ #define DOT '.' /* period/dot character */ #define BANG '!' /* exclaimation mark! */ #define AT_SIGN '@' /* at-sign character */ #define PERCENT '%' /* percent sign char. */ #define COLON ':' /* the colon .. */ #define BACKQUOTE '`' /* backquote character */ #define TILDE_ESCAPE '~' /* escape character~ */ #define ESCAPE '\033' /* the escape */ #define NO_OP_COMMAND '\0' /* no-op for timeouts */ #define STANDARD_INPUT 0 /* file number of stdin */ #ifndef TRUE #define TRUE 1 #define FALSE 0 #endif #define NO 0 #define YES 1 #define NO_TITE 2 /* ti/te or in flag */ #define MAYBE 2 /* a definite define, eh? */ #define FORM 3 /* <nevermind> */ #define PREFORMATTED 4 /* forwarded form... */ #define SAME_PAGE 1 /* redraw current only */ #define NEW_PAGE 2 /* redraw message list */ #define ILLEGAL_PAGE 0 /* error in page list, punt */ #define PAD 0 /* for printing name of */ #define FULL 1 /* the sort we're using */ #define OUTGOING 0 /* defines for lock file */ #define INCOMING 1 /* creation..see lock() */ /* options to the system_call() procedure */ #define SY_USER_SHELL (1<<0) /* use user shell instead of /bin/sh */ #define SY_ENV_SHELL (1<<1) /* put SHELL=[shell] into environ */ #define SY_ENAB_SIGHUP (1<<2) /* pgm to exec can handle signals */ #define SY_ENAB_SIGINT (1<<3) /* ...and it can handle SIGINT too */ #define SY_DUMPSTATE (1<<4) /* create folder state dump file */ /* options to the copy_message() procedure */ #define CM_REMOVE_HEADER (1<<0) /* skip header of message */ #define CM_REMOTE (1<<1) /* append remote from hostname to first line */ #define CM_UPDATE_STATUS (1<<2) /* Update Status: Header */ #define CM_MMDF_HEAD (1<<3) /* strip mmdf message seperator */ #define CM_REMAIL (1<<4) /* Add Sender: and Orig-To: headers */ #define CM_DECODE (1<<5) /* prompt for key if message is encrypted */ #define EXECUTE_ACCESS 1 /* These five are */ #define WRITE_ACCESS 2 /* for the calls */ #define READ_ACCESS 4 /* to access() */ #define ACCESS_EXISTS 0 /* <etc> */ #define EDIT_ACCESS 6 /* (this is r+w access) */ #define BIG_NUM 999999 /* big number! */ #define BIGGER_NUM 9999999 /* bigger number! */ #define START_ENCODE "[encode]" #define END_ENCODE "[clear]" #define DONT_SAVE "[no save]" #define DONT_SAVE2 "[nosave]" #define alias_file ".aliases" #define group_file ".groups" #define system_file ".systems" #define default_folders "Mail" #define default_recvdmail "=received" #define default_sentmail "=sent" /* environment variable with name of folder state dump file */ #define FOLDER_STATE_ENV "ELMSTATE" /** some defines for the 'userlevel' variable... **/ #define RANK_AMATEUR 0 #define AMATEUR 1 #define OKAY_AT_IT 2 #define GOOD_AT_IT 3 #define EXPERT 4 #define SUPER_AT_IT 5 /** some defines for the "status" field of the header and alias record **/ #define ACTION 1 /* bit masks, of course */ #define CONFIDENTIAL 2 #define DELETED 4 #define EXPIRED 8 #define FORM_LETTER 16 #define NEW 32 #define PRIVATE 64 #define TAGGED 128 #define URGENT 256 #define VISIBLE 512 #define UNREAD 1024 #define STATUS_CHANGED 2048 #define MIME_MESSAGE 4096 /* indicates existence of MIME Header */ #define MIME_NEEDDECOD 8192 /* indicates that we need to call mmdecode */ #define MIME_NOTPLAIN 16384 /* indicates that we have a content-type, for which we need metamail anyway. */ /** some defines for the "type" field of the alias record **/ #define SYSTEM 1 /* bit masks, of course */ #define USER 2 #define PERSON 4 #define GROUP 8 #define DUPLICATE 16 /* system aliases only */ /** some defines to aid in the limiting of alias displays **/ #define BY_NAME 64 #define BY_ALIAS 128 #define UNDELETE 0 /* purely for ^U function... */ /** values for headers exit_disposition field */ #define UNSET 0 #define KEEP 1 #define STORE 2 #define DELETE 3 /** some months... **/ #define JANUARY 0 /* months of the year */ #define FEBRUARY 1 #define MARCH 2 #define APRIL 3 #define MAY 4 #define JUNE 5 #define JULY 6 #define AUGUST 7 #define SEPTEMBER 8 #define OCTOBER 9 #define NOVEMBER 10 #define DECEMBER 11 #define equal(s,w) (strcmp(s,w) == 0) #define min(a,b) a < b? a : b #define ctrl(c) c - 'A' + 1 /* control character mapping */ #define plural(n) n == 1 ? "" : "s" #define lastch(s) s[strlen(s)-1] #define ifmain(a,b) (inalias ? b : a) #ifdef MEMCPY # ifdef I_MEMORY # include <memory.h> # else /* I_MEMORY */ # ifndef ANSI_C /* ANSI puts these in string.h */ #if defined(__convexc__) extern void *memcpy(), *memset(); #else extern char *memcpy(), *memset(); #endif extern int memcmp(); # endif /* ANSI_C */ # endif /* I_MEMORY */ #define bcopy(s1,s2,l) memcpy(s2,s1,l) #define bcmp(s1,s2,l) memcmp(s1,s2,l) #define bzero(s,l) memset(s,0,l) #endif /* MEMCPY */ #ifdef MALLOCVOID typedef void * malloc_t; #else typedef char * malloc_t; #endif #ifdef I_STDLIB # include <stdlib.h> #else extern malloc_t calloc(); extern int free(); extern malloc_t malloc(); extern malloc_t realloc(); extern void exit(); extern char *getenv(); #endif /* find tab stops preceding or following a given column position 'a', where * the column position starts counting from 1, NOT 0! * The external integer "tabspacing" must be declared to use this. */ #define prev_tab(a) (((((a-1)/tabspacing))*tabspacing)+1) #define next_tab(a) (((((a-1)/tabspacing)+1)*tabspacing)+1) #define movement_command(c) (c == 'j' || c == 'k' || c == ' ' || \ c == BACKSPACE || c == ESCAPE || c == '*' || \ c == '-' || c == '+' || c == '=' || \ c == '#' || c == '@' || c == 'x' || \ c == 'a' || c == 'q') #define no_ret(s) { register int xyz; /* varname is for lint */ \ for (xyz=strlen(s)-1; xyz >= 0 && \ (s[xyz] == '\r' || s[xyz] == '\n'); ) \ s[xyz--] = '\0'; \ } #define first_word(s,w) (strncmp(s,w, strlen(w)) == 0) #define first_word_nc(s,w) (strincmp(s,w, strlen(w)) == 0) #define ClearLine(n) MoveCursor(n,0); CleartoEOLN() #define whitespace(c) (c == ' ' || c == '\t') #define ok_rc_char(c) (isalnum(c) || c == '-' || c == '_') #define ok_alias_char(c) (isalnum(c) || c == '-' || c == '_' || c == '.') #define onoff(n) (n == 0 ? "OFF" : "ON") /** The next function is so certain commands can be processed from the showmsg routine without rewriting the main menu in between... **/ #define special(c) (c == 'j' || c == 'k') /** and a couple for dealing with status flags... **/ #define ison(n,mask) (n & mask) #define isoff(n,mask) (!ison(n, mask)) #define setit(n,mask) n |= mask #define clearit(n, mask) n &= ~mask /** a few for the usage of function keys... **/ #define f_key1 1 #define f_key2 2 #define f_key3 3 #define f_key4 4 #define f_key5 5 #define f_key6 6 #define f_key7 7 #define f_key8 8 #define MAIN 0 #define ALIAS 1 #define YESNO 2 #define CHANGE 3 #define READ 4 #define MAIN_HELP 0 #define OPTIONS_HELP 1 #define ALIAS_HELP 2 #define PAGER_HELP 3 /** types of folders **/ #define NO_NAME 0 /* variable contains no file name */ #define NON_SPOOL 1 /* mailfile not in mailhome */ #define SPOOL 2 /* mailfile in mailhome */ /* the following is true if the current mailfile is the user's spool file*/ #define USERS_SPOOL (strcmp(cur_folder, defaultfile) == 0) /** some possible sort styles... **/ #define REVERSE - /* for reverse sorting */ #define SENT_DATE 1 /* the date message was sent */ #define RECEIVED_DATE 2 /* the date message was received */ #define SENDER 3 /* the name/address of sender */ #define SIZE 4 /* the # of lines of the message */ #define SUBJECT 5 /* the subject of the message */ #define STATUS 6 /* the status (deleted, etc) */ #define MAILBOX_ORDER 7 /* the order it is in the file */ /** some possible sort styles...for aliases **/ #define ALIAS_SORT 1 /* the name of the alias */ #define NAME_SORT 2 /* the actual name for the alias */ #define TEXT_SORT 3 /* the order of aliases.text */ #define LAST_ALIAS_SORT TEXT_SORT /* some stuff for our own malloc call - pmalloc */ #define PMALLOC_THRESHOLD 256 /* if greater, then just use malloc */ #define PMALLOC_BUFFER_SIZE 2048 /* internal [memory] buffer size... */ /** the following macro is as suggested by Larry McVoy. Thanks! **/ # ifdef DEBUG # define dprint(n,x) { \ if (debug >= n) { \ fprintf x ; \ fflush(debugfile); \ } \ } # else # define dprint(n,x) # endif /* some random structs... */ struct header_rec { int lines; /** # of lines in the message **/ int status; /** Urgent, Deleted, Expired? **/ int index_number; /** relative loc in file... **/ int encrypted; /** whether msg has encryption **/ int exit_disposition; /** whether to keep, store, delete **/ int status_chgd; /** whether became read or old, etc. **/ long content_length; /** content_length in bytes from message header **/ long offset; /** offset in bytes of message **/ time_t received_time; /** when elm received here **/ char from[STRING]; /** who sent the message? **/ char to[STRING]; /** who it was sent to **/ char messageid[STRING]; /** the Message-ID: value **/ char time_zone[12]; /** incl. tz **/ time_t time_sent; /** gmt when sent for sorting **/ char time_menu[SHORT]; /** just the month..day for menu **/ time_t tz_offset; /** offset to gmt of time sent **/ char subject[STRING]; /** The subject of the mail **/ char mailx_status[WLEN];/** mailx status flags (RO...) **/ }; struct alias_rec { int status; /* DELETED, TAGGED, VISIBLE, ... */ char *alias; /* alias name */ char *last_name; /* actual personal (last) name */ char *name; /* actual personal name (first last) */ char *comment; /* comment, doesn't show in headers */ char *address; /* non expanded address */ int type; /* mask-- sys/user, person/group */ long length; /* length of alias data on file */ }; struct addr_rec { char address[NLEN]; /* machine!user you get mail as */ struct addr_rec *next; /* linked list pointer to next */ }; /* * Filled in by "load_folder_state_file()". This allows an external program * (e.g. "readmsg") to receive information on the current Elm state. */ struct folder_state { char *folder_name; /* full pathname to current folder */ int num_mssgs; /* number of messages in the folder */ long *idx_list; /* index of seek offsets for messages */ int num_sel; /* number of messages selected */ int *sel_list; /* list of selected message numbers */ }; #ifdef SHORTNAMES /* map long names to shorter ones */ # include <shortname.h> #endif /** Let's make sure that we're not going to have any annoying problems with int pointer sizes versus char pointer sizes by guaranteeing that every- thing vital is predefined... (Thanks go to Detlev Droege for this one) **/ #ifdef STRINGS # include <strings.h> #else # if defined(_CONVEX_SOURCE) && defined(index) # undef _CONVEX_SOURCE # include <string.h> /* Now there is no proto for index. */ # define _CONVEX_SOURCE # else # include <string.h> # endif #endif #ifndef ANSI_C /* ANSI puts these in string.h */ char *index(), *rindex(); /* names will be traslated by define in config.h */ char *strtok(), *strcpy(), *strcat(), *strncpy(); /* more in string.h in ANSI */ long lseek(); int fseek(); #if defined(__convexc__) unsigned sleep(); #else unsigned long sleep(); #endif #else # ifdef I_UNISTD /* unistd.h available */ # include <unistd.h> /* ansi C puts sleep, lseek and fseek in unistd.h */ # else /* I_UNISTD */ long lseek(); int fseek(); unsigned long sleep(); # endif /* I_UNISTD */ #endif char *strtokq(); /* our own quote minding strtok */ #ifndef STRSTR char *strstr(); #endif #ifdef I_LOCALE #include <locale.h> #endif #ifdef I_NL_TYPES #include <nl_types.h> #else #include "../hdrs/nl_types.h" #endif #ifndef USENLS #define MCprintf printf #define MCfprintf fprintf #define MCsprintf sprintf #endif #ifdef POSIX_SIGNALS #define signal posix_signal #ifdef __STDC__ extern SIGHAND_TYPE (*posix_signal(int, SIGHAND_TYPE (*)(int)))(int); #else /* __STDC__ */ extern SIGHAND_TYPE (*posix_signal())(); #endif /* __STDC__ */ #else /* POSIX_SIGNALS */ #ifdef SIGSET #define signal sigset #ifdef _AIX extern SIGHAND_TYPE (*sigset(int sig, SIGHAND_TYPE (*func)(int)))(int); #endif #endif /* SIGSET */ #endif /* POSIX_SIGNALS */ /* * The "safe_malloc_fail_handler" vector points to a routine that is invoked * if one of the safe_malloc() routines fails. At startup, this will point * to the default handler that prints a diagnostic message and aborts. The * vector may be changed to install a different error handler. */ extern void (*safe_malloc_fail_handler)(); char *argv_zero(); char *bounce_off_remote(); char *ctime(); char *error_description(); char *expand_system(); char *format_long(); char *get_alias_address(); char *get_arpa_date(); char *get_ctime_date(); char *get_date(); char *get_token(); char *getlogin(); char *level_name(); char *shift_lower(); char *strip_commas(); char *strip_parens(); char *strpbrk(); char *qstrpbrk(); char *strfcpy(); char *strtok(); char *tail_of_string(); char *tgetstr(); char *pmalloc(); char *header_cmp(); char *safe_strdup(); malloc_t safe_malloc(); malloc_t safe_realloc(); long times(); long ulimit();