1 /* 2 ** SENDMAIL.H -- Global definitions for sendmail. 3 ** 4 ** @(#)sendmail.h 3.19 08/09/81 5 */ 6 7 8 9 10 # include "useful.h" 11 12 /* 13 ** Manifest constants. 14 */ 15 16 # define MAXLINE 256 /* maximum line length */ 17 # define MAXNAME 128 /* maximum length of a name */ 18 # define MAXFIELD 2500 /* maximum total length of a header field */ 19 # define MAXPV 40 /* maximum # of parms to mailers */ 20 # define MAXHOP 30 /* maximum value of HopCount */ 21 # define MAXATOM 15 /* max atoms per address */ 22 # define ALIASFILE "/usr/lib/aliases" /* location of alias file */ 23 24 25 26 27 28 29 /* 30 ** Address structure. 31 ** Addresses are stored internally in this structure. 32 */ 33 34 struct address 35 { 36 char *q_paddr; /* the printname for the address */ 37 char *q_user; /* user name */ 38 char *q_host; /* host name */ 39 short q_mailer; /* mailer to use */ 40 short q_rmailer; /* real mailer (before mapping) */ 41 short q_flags; /* status flags, see below */ 42 char *q_home; /* home dir (local mailer only) */ 43 struct address *q_next; /* chain */ 44 }; 45 46 typedef struct address ADDRESS; 47 48 # define QDONTSEND 000001 /* don't send to this address */ 49 # define QBADADDR 000002 /* this address is verified bad */ 50 51 52 53 54 55 /* 56 ** Mailer definition structure. 57 ** Every mailer known to the system is declared in this 58 ** structure. It defines the pathname of the mailer, some 59 ** flags associated with it, and the argument vector to 60 ** pass to it. The flags are defined in conf.c 61 ** 62 ** The host map is a list of lists of strings. Within each 63 ** list, any host is mapped to the last host in the list. 64 ** This allows multiple names, as well as doing clever 65 ** mail grouping in point-to-point networks. Note: this 66 ** is only used internally, so the apparent host is still 67 ** kept around. 68 ** 69 ** The argument vector is expanded before actual use. Every- 70 ** thing is passed through except for things starting with "$". 71 ** "$x" defines some interpolation, as described in conf.c 72 ** "$x" where x is unknown expands to "x", so use "$$" to get "$". 73 */ 74 75 struct mailer 76 { 77 char *m_name; /* symbolic name of this mailer */ 78 char *m_mailer; /* pathname of the mailer to use */ 79 short m_flags; /* status flags, see below */ 80 short m_badstat; /* the status code to use on unknown error */ 81 char *m_from; /* pattern for From: header */ 82 char **m_argv; /* template argument vector */ 83 ADDRESS *m_sendq; /* list of addresses to send to */ 84 }; 85 86 # define M_FOPT 000001 /* mailer takes picky -f flag */ 87 # define M_ROPT 000002 /* mailer takes picky -r flag */ 88 # define M_QUIET 000004 /* don't print error on bad status */ 89 # define M_RESTR 000010 /* must be daemon to execute */ 90 # define M_NHDR 000020 /* don't insert From line */ 91 # define M_NOHOST 000040 /* ignore host in comparisons */ 92 # define M_STRIPQ 000100 /* strip quote characters from user/host */ 93 # define M_MUSER 000200 /* mailer can handle multiple users at once */ 94 # define M_NEEDFROM 000400 /* need arpa-style From: line */ 95 # define M_NEEDDATE 001000 /* need arpa-style Date: line */ 96 # define M_MSGID 002000 /* need Message-Id: field */ 97 # define M_USR_UPPER 010000 /* preserve user case distinction */ 98 # define M_HST_UPPER 020000 /* preserve host case distinction */ 99 # define M_FULLNAME 040000 /* want Full-Name field */ 100 101 # define M_ARPAFMT (M_NEEDDATE|M_NEEDFROM|M_NEEDDATE) 102 103 extern struct mailer *Mailer[]; 104 105 /* special mailer numbers */ 106 # define M_LOCAL 0 /* local mailer */ 107 # define M_PROG 1 /* program mailer */ 108 # define M_PRIVATE 2 /* user's private mailer */ 109 /* mailers from 3 on are arbitrary */ 110 111 112 113 /* 114 ** Header structure. 115 ** This structure is used internally to store header items. 116 */ 117 118 struct header 119 { 120 char *h_field; /* the name of the field */ 121 char *h_value; /* the value of that field */ 122 struct header *h_link; /* the next header */ 123 short h_flags; /* status bits, see below */ 124 short h_mflags; /* m_flags bits needed */ 125 }; 126 127 typedef struct header HDR; 128 129 extern HDR *Header; /* head of header list */ 130 131 /* 132 ** Header information structure. 133 ** Defined in conf.c, this struct declares the header fields 134 ** that have some magic meaning. 135 */ 136 137 struct hdrinfo 138 { 139 char *hi_field; /* the name of the field */ 140 short hi_flags; /* status bits, see below */ 141 short hi_mflags; /* m_flags needed for this field */ 142 }; 143 144 extern struct hdrinfo HdrInfo[]; 145 146 /* bits for h_flags and hi_flags */ 147 # define H_EOH 00001 /* this field terminates header */ 148 # define H_DELETE 00002 /* don't send this field */ 149 # define H_DEFAULT 00004 /* if another value is found, drop this */ 150 # define H_USED 00010 /* indicates that this has been output */ 151 # define H_CHECK 00020 /* check h_mflags against m_flags */ 152 # define H_ACHECK 00040 /* ditto, but always (not just default) */ 153 154 155 /* 156 ** Rewrite rules. 157 */ 158 159 struct rewrite 160 { 161 char **r_lhs; /* pattern match */ 162 char **r_rhs; /* substitution value */ 163 struct rewrite *r_next;/* next in chain */ 164 }; 165 166 struct rewrite *RewriteRules[]; 167 168 # define MATCHANY '\020' /* match one or more tokens */ 169 # define MATCHONE '\021' /* match exactly one token */ 170 # define MATCHCLASS '\022' /* match one token in a class */ 171 172 # define CANONNET '\025' /* canonical net, next token */ 173 # define CANONHOST '\026' /* canonical host, next token */ 174 # define CANONUSER '\027' /* canonical user, next N tokens */ 175 176 177 178 /* 179 ** Symbol table definitions 180 */ 181 182 struct symtab 183 { 184 char *s_name; /* name to be entered */ 185 char s_type; /* general type (unused) */ 186 long s_class; /* bit-map of word classes */ 187 struct symtab *s_next; /* pointer to next in chain */ 188 }; 189 190 typedef struct symtab STAB; 191 192 extern STAB *stab(); 193 194 /* opcodes to stab */ 195 # define ST_FIND 0 /* find entry */ 196 # define ST_ENTER 1 /* enter if not there */ 197 198 199 200 201 /* 202 ** Global variables. 203 */ 204 205 extern bool ArpaFmt; /* if set, message is in arpanet fmt */ 206 extern bool FromFlag; /* if set, "From" person is explicit */ 207 extern bool MailBack; /* mail back response on error */ 208 extern bool BerkNet; /* called from BerkNet */ 209 extern bool WriteBack; /* write back response on error */ 210 extern bool NoAlias; /* if set, don't do any aliasing */ 211 extern bool ForceMail; /* if set, mail even if already got a copy */ 212 extern bool MeToo; /* send to the sender also */ 213 extern bool IgnrDot; /* don't let dot end messages */ 214 extern bool SaveFrom; /* save leading "From" lines */ 215 extern bool Verbose; /* set if blow-by-blow desired */ 216 extern int Debug; /* debugging level */ 217 extern int Errors; /* set if errors */ 218 extern int ExitStat; /* exit status code */ 219 extern char InFileName[]; /* input file name */ 220 extern char Transcript[]; /* the transcript file name */ 221 extern ADDRESS From; /* the person it is from */ 222 extern char *To; /* the target person */ 223 extern int HopCount; /* hop count */ 224 extern long CurTime; /* time of this message */ 225 extern char FromLine[]; /* a UNIX-style From line for this message */ 226 227 228 # include <sysexits.h> 229 230 # define setstat(s) { if (ExitStat == EX_OK) ExitStat = s; } 231