1 /* 2 ** SENDMAIL.H -- Global definitions for sendmail. 3 ** 4 ** @(#)sendmail.h 3.40 09/12/81 5 */ 6 7 8 9 # ifdef _DEFINE 10 # define EXTERN 11 # else _DEFINE 12 # define EXTERN extern 13 # endif _DEFINE 14 15 # include <stdio.h> 16 # include <ctype.h> 17 # include "useful.h" 18 19 /* 20 ** Configuration constants. 21 ** There shouldn't be much need to change these.... 22 */ 23 24 # define MAXLINE 256 /* max line length */ 25 # define MAXNAME 128 /* max length of a name */ 26 # define MAXFIELD 2500 /* max total length of a hdr field */ 27 # define MAXPV 40 /* max # of parms to mailers */ 28 # define MAXHOP 30 /* max value of HopCount */ 29 # define MAXATOM 15 /* max atoms per address */ 30 # define MAXMAILERS 10 /* maximum mailers known to system */ 31 # define SPACESUB ('.'|0200) /* substitution for <lwsp> */ 32 33 /* values for ArpaMode -- these are ordered!! */ 34 # define ARPA_NONE 0 /* not in arpanet mode */ 35 # define ARPA_OLD 1 /* in old arpanet mode */ 36 # define ARPA_MAIL 2 /* in regular arpanet mail */ 37 # define ARPA_FILE 3 /* reading over data connection */ 38 39 extern char Arpa_Info[]; /* the message number for Arpanet info */ 40 41 42 43 44 45 46 /* 47 ** Address structure. 48 ** Addresses are stored internally in this structure. 49 */ 50 51 struct address 52 { 53 char *q_paddr; /* the printname for the address */ 54 char *q_user; /* user name */ 55 char *q_host; /* host name */ 56 short q_mailer; /* mailer to use */ 57 short q_rmailer; /* real mailer (before mapping) */ 58 u_short q_flags; /* status flags, see below */ 59 short q_uid; /* user-id of receiver (if known) */ 60 char *q_home; /* home dir (local mailer only) */ 61 struct address *q_next; /* chain */ 62 }; 63 64 typedef struct address ADDRESS; 65 66 # define QDONTSEND 000001 /* don't send to this address */ 67 # define QBADADDR 000002 /* this address is verified bad */ 68 69 70 71 72 73 /* 74 ** Mailer definition structure. 75 ** Every mailer known to the system is declared in this 76 ** structure. It defines the pathname of the mailer, some 77 ** flags associated with it, and the argument vector to 78 ** pass to it. The flags are defined in conf.c 79 ** 80 ** The host map is a list of lists of strings. Within each 81 ** list, any host is mapped to the last host in the list. 82 ** This allows multiple names, as well as doing clever 83 ** mail grouping in point-to-point networks. Note: this 84 ** is only used internally, so the apparent host is still 85 ** kept around. 86 ** 87 ** The argument vector is expanded before actual use. All 88 ** words except the first are passed through the macro 89 ** processor. 90 */ 91 92 struct mailer 93 { 94 char *m_name; /* symbolic name of this mailer */ 95 char *m_mailer; /* pathname of the mailer to use */ 96 u_long m_flags; /* status flags, see below */ 97 short m_badstat; /* the status code to use on unknown error */ 98 char *m_from; /* pattern for From: header */ 99 char **m_argv; /* template argument vector */ 100 ADDRESS *m_sendq; /* list of addresses to send to */ 101 }; 102 103 typedef struct mailer MAILER; 104 105 # define M_FOPT 000001 /* mailer takes picky -f flag */ 106 # define M_ROPT 000002 /* mailer takes picky -r flag */ 107 # define M_QUIET 000004 /* don't print error on bad status */ 108 # define M_RESTR 000010 /* must be daemon to execute */ 109 # define M_NHDR 000020 /* don't insert From line */ 110 # define M_LOCAL 000040 /* delivery is to this host */ 111 # define M_STRIPQ 000100 /* strip quote characters from user/host */ 112 # define M_MUSER 000200 /* mailer can handle multiple users at once */ 113 # define M_NEEDFROM 000400 /* need arpa-style From: line */ 114 # define M_NEEDDATE 001000 /* need arpa-style Date: line */ 115 # define M_MSGID 002000 /* need Message-Id: field */ 116 # define M_USR_UPPER 010000 /* preserve user case distinction */ 117 # define M_HST_UPPER 020000 /* preserve host case distinction */ 118 # define M_FULLNAME 040000 /* want Full-Name field */ 119 120 # define M_ARPAFMT (M_NEEDDATE|M_NEEDFROM|M_MSGID) 121 122 EXTERN MAILER *Mailer[MAXMAILERS+1]; 123 124 /* special mailer numbers */ 125 # define MN_LOCAL 0 /* local mailer */ 126 # define MN_PROG 1 /* program mailer */ 127 /* mailers from 2 on are arbitrary */ 128 129 130 131 /* 132 ** Header structure. 133 ** This structure is used internally to store header items. 134 */ 135 136 struct header 137 { 138 char *h_field; /* the name of the field */ 139 char *h_value; /* the value of that field */ 140 struct header *h_link; /* the next header */ 141 u_short h_flags; /* status bits, see below */ 142 u_long h_mflags; /* m_flags bits needed */ 143 }; 144 145 typedef struct header HDR; 146 147 EXTERN HDR *Header; /* head of header list */ 148 149 /* 150 ** Header information structure. 151 ** Defined in conf.c, this struct declares the header fields 152 ** that have some magic meaning. 153 */ 154 155 struct hdrinfo 156 { 157 char *hi_field; /* the name of the field */ 158 u_short hi_flags; /* status bits, see below */ 159 u_short hi_mflags; /* m_flags needed for this field */ 160 }; 161 162 extern struct hdrinfo HdrInfo[]; 163 164 /* bits for h_flags and hi_flags */ 165 # define H_EOH 00001 /* this field terminates header */ 166 # define H_DEFAULT 00004 /* if another value is found, drop this */ 167 # define H_USED 00010 /* indicates that this has been output */ 168 # define H_CHECK 00020 /* check h_mflags against m_flags */ 169 # define H_ACHECK 00040 /* ditto, but always (not just default) */ 170 # define H_FORCE 00100 /* force this field, even if default */ 171 # define H_ADDR 00200 /* this field contains addresses */ 172 173 174 /* 175 ** Rewrite rules. 176 */ 177 178 struct rewrite 179 { 180 char **r_lhs; /* pattern match */ 181 char **r_rhs; /* substitution value */ 182 struct rewrite *r_next;/* next in chain */ 183 }; 184 185 extern struct rewrite *RewriteRules[]; 186 187 # define MATCHANY '\020' /* match one or more tokens */ 188 # define MATCHONE '\021' /* match exactly one token */ 189 # define MATCHCLASS '\022' /* match one token in a class */ 190 191 # define CANONNET '\025' /* canonical net, next token */ 192 # define CANONHOST '\026' /* canonical host, next token */ 193 # define CANONUSER '\027' /* canonical user, next N tokens */ 194 195 196 197 /* 198 ** Symbol table definitions 199 */ 200 201 struct symtab 202 { 203 char *s_name; /* name to be entered */ 204 char s_type; /* general type (see below) */ 205 struct symtab *s_next; /* pointer to next in chain */ 206 union 207 { 208 long sv_class; /* bit-map of word classes */ 209 ADDRESS *sv_addr; /* pointer to address header */ 210 MAILER *sv_mailer; /* pointer to mailer */ 211 char *sv_alias; /* alias */ 212 } s_value; 213 }; 214 215 typedef struct symtab STAB; 216 217 /* symbol types */ 218 # define ST_UNDEF 0 /* undefined type */ 219 # define ST_CLASS 1 /* class map */ 220 # define ST_ADDRESS 2 /* an address in parsed format */ 221 # define ST_MAILER 3 /* a mailer header */ 222 # define ST_ALIAS 4 /* an alias */ 223 224 # define s_class s_value.sv_class 225 # define s_addr s_value.sv_addr 226 # define s_mailer s_value.sv_mailer 227 # define s_alias s_value.sv_alias 228 229 extern STAB *stab(); 230 231 /* opcodes to stab */ 232 # define ST_FIND 0 /* find entry */ 233 # define ST_ENTER 1 /* enter if not there */ 234 235 236 237 238 /* 239 ** Statistics structure. 240 */ 241 242 struct statistics 243 { 244 time_t stat_itime; /* file initialization time */ 245 short stat_size; /* size of this structure */ 246 long stat_nf[MAXMAILERS]; /* # msgs from each mailer */ 247 long stat_bf[MAXMAILERS]; /* kbytes from each mailer */ 248 long stat_nt[MAXMAILERS]; /* # msgs to each mailer */ 249 long stat_bt[MAXMAILERS]; /* kbytes to each mailer */ 250 }; 251 252 EXTERN struct statistics Stat; 253 extern long kbytes(); /* for _bf, _bt */ 254 255 256 257 258 /* 259 ** Global variables. 260 */ 261 262 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 263 EXTERN bool MailBack; /* mail back response on error */ 264 EXTERN bool BerkNet; /* called from BerkNet */ 265 EXTERN bool WriteBack; /* write back response on error */ 266 EXTERN bool NoAlias; /* if set, don't do any aliasing */ 267 EXTERN bool ForceMail; /* if set, mail even if already got a copy */ 268 EXTERN bool MeToo; /* send to the sender also */ 269 EXTERN bool IgnrDot; /* don't let dot end messages */ 270 EXTERN bool SaveFrom; /* save leading "From" lines */ 271 EXTERN bool Verbose; /* set if blow-by-blow desired */ 272 EXTERN bool GrabTo; /* if set, get recipients from msg */ 273 EXTERN bool DontSend; /* mark recipients as QDONTSEND */ 274 EXTERN bool NoReturn; /* don't return letter to sender */ 275 EXTERN int OldUmask; /* umask when sendmail starts up */ 276 EXTERN int Debug; /* debugging level */ 277 EXTERN int Errors; /* set if errors */ 278 EXTERN int ExitStat; /* exit status code */ 279 EXTERN int ArpaMode; /* ARPANET handling mode */ 280 EXTERN long MsgSize; /* size of the message in bytes */ 281 extern char InFileName[]; /* input file name */ 282 extern char Transcript[]; /* the transcript file name */ 283 EXTERN FILE *TempFile; /* mail temp file */ 284 EXTERN ADDRESS From; /* the person it is from */ 285 EXTERN char *To; /* the target person */ 286 EXTERN int HopCount; /* hop count */ 287 EXTERN long CurTime; /* time of this message */ 288 EXTERN int AliasLevel; /* depth of aliasing */ 289 EXTERN char *OrigFrom; /* the From: line read from the message */ 290 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 291 EXTERN bool HasXscrpt; /* set if we have a transcript */ 292 293 294 # include <sysexits.h> 295 296 # define setstat(s) { if (ExitStat == EX_OK) ExitStat = s; } 297 298 299 /* useful functions */ 300 301 extern char *newstr(); 302 extern ADDRESS *parse(); 303 extern char *xalloc(); 304 extern char *expand(); 305 extern bool sameaddr(); 306