/* $NetBSD: def.h,v 1.29 2026/06/25 22:27:52 kre Exp $ */ /* * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)def.h 8.4 (Berkeley) 4/20/95 * $NetBSD: def.h,v 1.29 2026/06/25 22:27:52 kre Exp $ */ /* * Mail -- a mail program * * Author: Kurt Shoens (UCB) March 25, 1978 */ #ifndef __DEF_H__ #define __DEF_H__ #include <sys/types.h> #include <sys/file.h> #include <sys/ioctl.h> #include <sys/stat.h> #include <sys/param.h> #include <sys/time.h> #include <sys/wait.h> #include <ctype.h> #include <err.h> #include <errno.h> #include <fcntl.h> #include <paths.h> #include <pwd.h> #include <setjmp.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <termios.h> #include <time.h> #include <unistd.h> #include <vis.h> #include "pathnames.h" #define APPEND /* New mail goes to end of mailbox */ #define COMMENT_CHAR '#' /* Comment character when sourcing */ #define ESCAPE '~' /* Default escape for sending */ #define NMLSIZE 1024 /* max names in a message list */ #define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */ #define HSHSIZE 59 /* Hash size for aliases and vars */ #define LINESIZE BUFSIZ /* max readable line width */ #define MAXARGC 1024 /* Maximum list of raw strings */ #define MAXEXP 25 /* Maximum expansion of aliases */ #define PUBLIC /* make it easy to find the entry points */ /* * User environment variable names. * See complete.h, mime.h, and thread.h for names specific to those modules. */ #define ENAME_INDENT_POSTSCRIPT "indentpostscript" #define ENAME_INDENT_PREAMBLE "indentpreamble" #define ENAME_APPEND "append" #define ENAME_ASK "ask" #define ENAME_ASKBCC "askbcc" #define ENAME_ASKCC "askcc" #define ENAME_ASKSUB "asksub" #define ENAME_AUTOINC "autoinc" #define ENAME_AUTOPRINT "autoprint" #define ENAME_CRT "crt" #define ENAME_DEAD "DEAD" #define ENAME_DEBUG "debug" #define ENAME_DONTSENDEMPTY "dontsendempty" #define ENAME_DOT "dot" #define ENAME_EDITOR "EDITOR" #define ENAME_ENABLE_PIPES "enable-pipes" #define ENAME_ESCAPE "escape" #define ENAME_FOLDER "folder" #define ENAME_HEADER_FORMAT "header-format" #define ENAME_HOLD "hold" #define ENAME_IGNORE "ignore" #define ENAME_IGNOREEOF "ignoreeof" #define ENAME_INDENTPREFIX "indentprefix" #define ENAME_INTERACTIVE "interactive" #define ENAME_KEEP "keep" #define ENAME_KEEPSAVE "keepsave" #define ENAME_LISTER "LISTER" #define ENAME_MBOX "MBOX" #define ENAME_METOO "metoo" #define ENAME_NOHEADER "noheader" #define ENAME_NOSAVE "nosave" #define ENAME_PAGE_ALSO "page-also" #define ENAME_PAGER "PAGER" #define ENAME_PAGER_OFF "pager-off" #define ENAME_PROMPT "prompt" #define ENAME_QUIET "quiet" #define ENAME_RECORD "record" #define ENAME_REGEX_SEARCH "regex-search" #define ENAME_REPLYALL "Replyall" #define ENAME_REPLYASRECIPIENT "ReplyAsRecipient" #define ENAME_SCREEN "screen" #define ENAME_SCREENHEIGHT "screenheight" #define ENAME_SCREENWIDTH "screenwidth" #define ENAME_SEARCHHEADERS "searchheaders" #define ENAME_SENDMAIL "sendmail" #define ENAME_SHELL "SHELL" #define ENAME_SHOW_RCPT "show-rcpt" #define ENAME_SMOPTS_VERIFY "smopts-verify" #define ENAME_TOPLINES "toplines" #define ENAME_VERBOSE "verbose" #define ENAME_VISUAL "VISUAL" #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */ union msgref { struct message *link; /* the usual content of the field */ ptrdiff_t offset; /* temporary use during turbulence */ }; struct message { short m_flag; /* flags, see below */ short m_offset; /* offset in block of message */ long m_block; /* block number of this message */ long m_lines; /* Lines in the message */ off_t m_size; /* Bytes in the message */ long m_blines; /* Body (non-header) lines */ /* * threading fields */ int m_index; /* message index in this thread */ int m_depth; /* depth in thread */ union msgref m_f; /* link to next message */ union msgref m_b; /* link to previous message */ union msgref m_c; /* link to child of this message */ union msgref m_p; /* link to parent of thread */ }; typedef struct mime_info mime_info_t; /* phantom structure only to attach.c */ #define m_flink m_f.link /* for access to usual members */ #define m_blink m_b.link /* all are struct message * */ #define m_clink m_c.link #define m_plink m_p.link /* * flag bits. */ #define MUSED (1<<0) /* entry is used, but this bit isn't */ #define MDELETED (1<<1) /* entry has been deleted */ #define MSAVED (1<<2) /* entry has been saved */ #define MTOUCH (1<<3) /* entry has been noticed */ #define MPRESERVE (1<<4) /* keep entry in sys mailbox */ #define MMARK (1<<5) /* message is marked! */ #define MMODIFY (1<<6) /* message has been modified */ #define MNEW (1<<7) /* message has never been seen */ #define MREAD (1<<8) /* message has been read sometime. */ #define MSTATUS (1<<9) /* message status has changed */ #define MBOX (1<<10) /* Send this to mbox, regardless */ #define MTAGGED (1<<11) /* message has been tagged */ /* * Given a file address, determine the block number it represents. */ #define blockof(off) ((int) ((off) / 4096)) #define blkoffsetof(off) ((int) ((off) % 4096)) #define positionof(block, offset) ((off_t)(block) * 4096 + (offset)) /* * Format of the command description table. * The actual table is declared and initialized * in lex.c */ struct cmd { const char *c_name; /* Name of command */ int (*c_func)(void *); /* Implementor of the command */ int c_pipe; /* Pipe output through the pager */ # define C_PIPE_PAGER 1 /* enable use of pager */ # define C_PIPE_CRT 2 /* use the pager if CRT is defined */ # define C_PIPE_SHELL 4 /* enable shell pipes */ #ifdef USE_EDITLINE const char *c_complete; /* String describing completion */ #endif short c_argtype; /* Type of arglist (see below) */ short c_msgflag; /* Required flags of messages */ short c_msgmask; /* Relevant flags of messages */ }; /* Yechh, can't initialize unions */ #define c_minargs c_msgflag /* Minimum argcount for RAWLIST */ #define c_maxargs c_msgmask /* Max argcount for RAWLIST */ /* * Argument types. */ #define MSGLIST 0 /* Message list type */ #define STRLIST 1 /* A pure string */ #define RAWLIST 2 /* Shell string list */ #define NOLIST 3 /* Just plain 0 */ #define NDMLIST 4 /* Message list, no defaults */ #define P 0x010 /* Autoprint dot after command */ #define I 0x020 /* Interactive command bit */ #define M 0x040 /* Legal from send mode bit */ #define W 0x080 /* Illegal when read only bit */ #define F 0x100 /* Is a conditional command */ #define T 0x200 /* Is a transparent command */ #define R 0x400 /* Cannot be called from collect */ #define ARGTYPE_MASK ~(P|I|M|W|F|T|R) /* * Oft-used mask values */ #define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */ #define MMNDEL MDELETED /* Look only at deleted bit */ /* * Structure used to return a break down of a head * line (hats off to Bill Joy!) */ struct headline { char *l_from; /* The name of the sender */ char *l_tty; /* His tty string (if any) */ char *l_date; /* The entire date string */ }; #define GTO 0x001 /* Grab To: line */ #define GSUBJECT 0x002 /* Likewise, Subject: line */ #define GCC 0x004 /* And the Cc: line */ #define GBCC 0x008 /* And also the Bcc: line */ #define GSMOPTS 0x010 /* Grab the sendmail options */ #define GMISC 0x020 /* miscellaneous extra fields for sending */ #ifdef MIME_SUPPORT #define GMIME 0x040 /* mime flag */ #endif #define GMASK (GTO | GSUBJECT | GCC | GBCC | GSMOPTS) /* Mask of places from whence */ #define GNL 0x100 /* Print blank line after */ #define GDEL 0x200 /* Entity removed from list */ #define GCOMMA 0x400 /* detract puts in commas */ #ifdef MIME_SUPPORT /* * Structure of MIME content. */ struct Content { const char *C_type; /* content type */ const char *C_encoding; /* content transfer encoding */ const char *C_disposition; /* content disposition */ const char *C_description; /* content description */ const char *C_id; /* content id */ }; /* Header strings corresponding to the above Content fields. */ #define MIME_HDR_TYPE "Content-Type" #define MIME_HDR_ENCODING "Content-Transfer-Encoding" #define MIME_HDR_DISPOSITION "Content-Disposition" #define MIME_HDR_ID "Content-ID" #define MIME_HDR_DESCRIPTION "Content-Description" #define MIME_HDR_VERSION "MIME-Version" /* the value of the MIME-Version field */ #define MIME_VERSION "1.0" typedef enum { ATTACH_INVALID = 0, /* do not use! */ ATTACH_FNAME = 1, ATTACH_MSG = 2, ATTACH_FILENO = 3 } attach_t; /* * Structure of a MIME attachment. */ struct attachment { struct attachment *a_flink; /* Forward link in list. */ struct attachment *a_blink; /* Backward list link */ attach_t a_type; /* attachment type */ #if 1 union { char *u_name; /* file name */ struct message *u_msg; /* message */ int u_fileno; /* file number */ } a_u; #define a_name a_u.u_name #define a_msg a_u.u_msg #define a_fileno a_u.u_fileno #else char *a_name; /* file name */ struct message *a_msg; /* message */ int a_fileno; /* file number */ #endif struct Content a_Content; /* MIME content strings */ }; #endif /* MIME_SUPPORT */ /* * Structure used to pass about the current * state of the user-typed message header. */ struct header { struct name *h_to; /* Dynamic "To:" string */ char *h_subject; /* Subject string */ struct name *h_cc; /* Carbon copies string */ struct name *h_bcc; /* Blind carbon copies */ struct name *h_smopts; /* Sendmail options */ char *h_in_reply_to; /* In-Reply-To: field */ struct name *h_references; /* References: field */ struct name *h_extra; /* extra header fields */ #ifdef MIME_SUPPORT char *h_mime_boundary; /* MIME multipart boundary string */ struct Content h_Content; /* MIME content for message */ struct attachment *h_attach; /* MIME attachments */ #endif }; /* * Structure of namelist nodes used in processing * the recipients of mail and aliases and all that * kind of stuff. */ struct name { struct name *n_flink; /* Forward link in list. */ struct name *n_blink; /* Backward list link */ short n_type; /* From which list it came */ char *n_name; /* This fella's name */ }; /* * Structure of a variable node. All variables are * kept on a singly-linked list of these, rooted by * "variables" */ struct var { struct var *v_link; /* Forward link to next variable */ char *v_name; /* The variable's name */ char *v_value; /* And its current value */ }; struct group { struct group *ge_link; /* Next person in this group */ char *ge_name; /* This person's user name */ }; struct grouphead { struct grouphead *g_link; /* Next grouphead in list */ char *g_name; /* Name of this group */ struct group *g_list; /* Users in group. */ }; struct smopts_s { struct smopts_s *s_link; /* Link to next smopts_s in list */ char *s_name; /* Name of this smopts_s */ struct name *s_smopts; /* sendmail options name list */ }; /* * Structure of the hash table of ignored header fields */ struct ignoretab { size_t i_count; /* Number of entries */ struct ignore { struct ignore *i_link; /* Next ignored field in bucket */ char *i_field; /* This ignored field */ } *i_head[HSHSIZE]; }; /* * Constants for conditional commands. These control whether we * should be executing commands or not. */ struct cond_stack_s { struct cond_stack_s *c_next; int c_cond; }; #define CNONE 0x00 /* Execute everything */ #define CSKIP 0x01 /* Do not execute commands */ #define CIF 0x02 /* Inside if/endif block */ #define CELSE 0x04 /* The last conditional was else */ #define CIGN 0x08 /* Conditional in a skipped block */ enum mailmode_e { mm_receiving, /* receiving mail mode */ mm_sending, /* sending mail mode */ mm_hdrsonly /* headers only mode */ }; /* * Truncate a file to the last character written. This is * useful just before closing an old file that was opened * for read/write. */ #define trunc(stream) { \ (void)fflush(stream); \ (void)ftruncate(fileno(stream), (off_t)ftell(stream)); \ } /* * White Space (WSP) as specified in see RFC 2822. * * NOTE: Use this in place of isblank() so it is inline. Also, unlike * the table implemented ctype(3) routines, this does not have input * range issues caused by sign extensions. * * See mime_header.h for the related is_FWS(). */ static inline int is_WSP(int c) { return c == ' ' || c == '\t'; } static inline char * skip_WSP(const char *cp) { while (is_WSP(*cp)) cp++; return __UNCONST(cp); } static inline char * skip_space(char *p) { while (isspace((unsigned char)*p)) p++; return p; } /* * strip trailing white space */ static inline char * strip_WSP(char *line) { char *cp; cp = line + strlen(line) - 1; while (cp >= line && is_WSP(*cp)) cp--; *++cp = '\0'; return cp; } #endif /* __DEF_H__ */
