1 /* 2 ** SENDMAIL.H -- Global definitions for sendmail. 3 ** 4 ** @(#)sendmail.h 3.11 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 98 # define M_ARPAFMT (M_NEEDDATE|M_NEEDFROM) 99 100 extern struct mailer *Mailer[]; 101 102 103 104 /* 105 ** Header structure. 106 ** This structure is used internally to store header items. 107 */ 108 109 struct header 110 { 111 char *h_field; /* the name of the field */ 112 char *h_value; /* the value of that field */ 113 struct header *h_link; /* the next header */ 114 short h_flags; /* status bits, see below */ 115 short h_mflags; /* m_flags bits needed */ 116 }; 117 118 typedef struct header HDR; 119 120 extern HDR *Header; /* head of header list */ 121 122 /* 123 ** Header information structure. 124 ** Defined in conf.c, this struct declares the header fields 125 ** that have some magic meaning. 126 */ 127 128 struct hdrinfo 129 { 130 char *hi_field; /* the name of the field */ 131 short hi_flags; /* status bits, see below */ 132 short hi_mflags; /* m_flags needed for this field */ 133 }; 134 135 extern struct hdrinfo HdrInfo[]; 136 137 /* bits for h_flags and hi_flags */ 138 # define H_EOH 00001 /* this field terminates header */ 139 # define H_DELETE 00002 /* don't send this field */ 140 # define H_DEFAULT 00004 /* if another value is found, drop this */ 141 # define H_USED 00010 /* indicates that this has been output */ 142 # define H_CHECK 00020 /* check h_mflags against m_flags */ 143 144 145 /* 146 ** Rewrite rules. 147 */ 148 149 struct rewrite 150 { 151 char **r_lhs; /* pattern match */ 152 char **r_rhs; /* substitution value */ 153 struct rewrite *r_next;/* next in chain */ 154 }; 155 156 struct rewrite *RewriteRules; 157 158 # define MATCHANY '\020' /* match exactly one token */ 159 # define MATCHONE '\021' /* match one or more tokens */ 160 161 # define CANONNET '\025' /* canonical net, next token */ 162 # define CANONHOST '\026' /* canonical host, next token */ 163 # define CANONUSER '\027' /* canonical user, next N tokens */ 164 165 166 167 168 /* 169 ** Global variables. 170 */ 171 172 extern bool ArpaFmt; /* if set, message is in arpanet fmt */ 173 extern bool FromFlag; /* if set, "From" person is explicit */ 174 extern bool Debug; /* if set, debugging info */ 175 extern bool MailBack; /* mail back response on error */ 176 extern bool BerkNet; /* called from BerkNet */ 177 extern bool WriteBack; /* write back response on error */ 178 extern bool NoAlias; /* if set, don't do any aliasing */ 179 extern bool ForceMail; /* if set, mail even if already got a copy */ 180 extern bool MeToo; /* send to the sender also */ 181 extern bool IgnrDot; /* don't let dot end messages */ 182 extern bool SaveFrom; /* save leading "From" lines */ 183 extern int Errors; /* set if errors */ 184 extern int ExitStat; /* exit status code */ 185 extern char InFileName[]; /* input file name */ 186 extern char Transcript[]; /* the transcript file name */ 187 extern ADDRESS From; /* the person it is from */ 188 extern char *To; /* the target person */ 189 extern int HopCount; /* hop count */ 190 extern long CurTime; /* time of this message */ 191 extern char FromLine[]; /* a UNIX-style From line for this message */ 192 193 194 # include <sysexits.h> 195 196 # define setstat(s) { if (ExitStat == EX_OK) ExitStat = s; } 197