1 /* 2 ** SENDMAIL.H -- Global definitions for sendmail. 3 ** 4 ** @(#)sendmail.h 3.12 03/28/81 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 struct address *q_next; /* chain */ 43 }; 44 45 typedef struct address ADDRESS; 46 47 # define QDONTSEND 000001 /* don't send to this address */ 48 49 50 51 52 53 /* 54 ** Mailer definition structure. 55 ** Every mailer known to the system is declared in this 56 ** structure. It defines the pathname of the mailer, some 57 ** flags associated with it, and the argument vector to 58 ** pass to it. The flags are defined in conf.c 59 ** 60 ** The host map is a list of lists of strings. Within each 61 ** list, any host is mapped to the last host in the list. 62 ** This allows multiple names, as well as doing clever 63 ** mail grouping in point-to-point networks. Note: this 64 ** is only used internally, so the apparent host is still 65 ** kept around. 66 ** 67 ** The argument vector is expanded before actual use. Every- 68 ** thing is passed through except for things starting with "$". 69 ** "$x" defines some interpolation, as described in conf.c 70 ** "$x" where x is unknown expands to "x", so use "$$" to get "$". 71 */ 72 73 struct mailer 74 { 75 char *m_name; /* symbolic name of this mailer */ 76 char *m_mailer; /* pathname of the mailer to use */ 77 short m_flags; /* status flags, see below */ 78 short m_badstat; /* the status code to use on unknown error */ 79 char *m_from; /* pattern for From: header */ 80 char **m_argv; /* template argument vector */ 81 ADDRESS *m_sendq; /* list of addresses to send to */ 82 }; 83 84 # define M_FOPT 000001 /* mailer takes picky -f flag */ 85 # define M_ROPT 000002 /* mailer takes picky -r flag */ 86 # define M_QUIET 000004 /* don't print error on bad status */ 87 # define M_RESTR 000010 /* must be daemon to execute */ 88 # define M_NHDR 000020 /* don't insert From line */ 89 # define M_NOHOST 000040 /* ignore host in comparisons */ 90 # define M_STRIPQ 000100 /* strip quote characters from user/host */ 91 # define M_MUSER 000200 /* mailer can handle multiple users at once */ 92 # define M_NEEDFROM 000400 /* need arpa-style From: line */ 93 # define M_NEEDDATE 001000 /* need arpa-style Date: line */ 94 # define M_MSGID 002000 /* need Message-Id: field */ 95 # define M_USR_UPPER 010000 /* preserve user case distinction */ 96 # define M_HST_UPPER 020000 /* preserve host case distinction */ 97 # define M_FULLNAME 040000 /* want Full-Name field */ 98 99 # define M_ARPAFMT (M_NEEDDATE|M_NEEDFROM|M_NEEDDATE) 100 101 extern struct mailer *Mailer[]; 102 103 104 105 /* 106 ** Header structure. 107 ** This structure is used internally to store header items. 108 */ 109 110 struct header 111 { 112 char *h_field; /* the name of the field */ 113 char *h_value; /* the value of that field */ 114 struct header *h_link; /* the next header */ 115 short h_flags; /* status bits, see below */ 116 short h_mflags; /* m_flags bits needed */ 117 }; 118 119 typedef struct header HDR; 120 121 extern HDR *Header; /* head of header list */ 122 123 /* 124 ** Header information structure. 125 ** Defined in conf.c, this struct declares the header fields 126 ** that have some magic meaning. 127 */ 128 129 struct hdrinfo 130 { 131 char *hi_field; /* the name of the field */ 132 short hi_flags; /* status bits, see below */ 133 short hi_mflags; /* m_flags needed for this field */ 134 }; 135 136 extern struct hdrinfo HdrInfo[]; 137 138 /* bits for h_flags and hi_flags */ 139 # define H_EOH 00001 /* this field terminates header */ 140 # define H_DELETE 00002 /* don't send this field */ 141 # define H_DEFAULT 00004 /* if another value is found, drop this */ 142 # define H_USED 00010 /* indicates that this has been output */ 143 # define H_CHECK 00020 /* check h_mflags against m_flags */ 144 # define H_ACHECK 00040 /* ditto, but always (not just default) */ 145 146 147 /* 148 ** Rewrite rules. 149 */ 150 151 struct rewrite 152 { 153 char **r_lhs; /* pattern match */ 154 char **r_rhs; /* substitution value */ 155 struct rewrite *r_next;/* next in chain */ 156 }; 157 158 struct rewrite *RewriteRules; 159 160 # define MATCHANY '\020' /* match exactly one token */ 161 # define MATCHONE '\021' /* match one or more tokens */ 162 163 # define CANONNET '\025' /* canonical net, next token */ 164 # define CANONHOST '\026' /* canonical host, next token */ 165 # define CANONUSER '\027' /* canonical user, next N tokens */ 166 167 168 169 170 /* 171 ** Global variables. 172 */ 173 174 extern bool ArpaFmt; /* if set, message is in arpanet fmt */ 175 extern bool FromFlag; /* if set, "From" person is explicit */ 176 extern bool Debug; /* if set, debugging info */ 177 extern bool MailBack; /* mail back response on error */ 178 extern bool BerkNet; /* called from BerkNet */ 179 extern bool WriteBack; /* write back response on error */ 180 extern bool NoAlias; /* if set, don't do any aliasing */ 181 extern bool ForceMail; /* if set, mail even if already got a copy */ 182 extern bool MeToo; /* send to the sender also */ 183 extern bool IgnrDot; /* don't let dot end messages */ 184 extern bool SaveFrom; /* save leading "From" lines */ 185 extern int Errors; /* set if errors */ 186 extern int ExitStat; /* exit status code */ 187 extern char InFileName[]; /* input file name */ 188 extern char Transcript[]; /* the transcript file name */ 189 extern ADDRESS From; /* the person it is from */ 190 extern char *To; /* the target person */ 191 extern int HopCount; /* hop count */ 192 extern long CurTime; /* time of this message */ 193 extern char FromLine[]; /* a UNIX-style From line for this message */ 194 195 196 # include <sysexits.h> 197 198 # define setstat(s) { if (ExitStat == EX_OK) ExitStat = s; } 199