1 /* 2 ** SENDMAIL.H -- Global definitions for sendmail. 3 ** 4 ** @(#)sendmail.h 3.45 09/24/81 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 30 /* 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 short q_gid; /* group-id of receiver (if known) */ 61 char *q_home; /* home dir (local mailer only) */ 62 struct address *q_next; /* chain */ 63 struct address *q_alias; /* address this results from */ 64 }; 65 66 typedef struct address ADDRESS; 67 68 # define QDONTSEND 000001 /* don't send to this address */ 69 # define QBADADDR 000002 /* this address is verified bad */ 70 # define QGOODUID 000004 /* the q_uid q_gid fields are good */ 71 # define QPRIMARY 000010 /* set from argv */ 72 73 74 75 76 77 /* 78 ** Mailer definition structure. 79 ** Every mailer known to the system is declared in this 80 ** structure. It defines the pathname of the mailer, some 81 ** flags associated with it, and the argument vector to 82 ** pass to it. The flags are defined in conf.c 83 ** 84 ** The host map is a list of lists of strings. Within each 85 ** list, any host is mapped to the last host in the list. 86 ** This allows multiple names, as well as doing clever 87 ** mail grouping in point-to-point networks. Note: this 88 ** is only used internally, so the apparent host is still 89 ** kept around. 90 ** 91 ** The argument vector is expanded before actual use. All 92 ** words except the first are passed through the macro 93 ** processor. 94 */ 95 96 struct mailer 97 { 98 char *m_name; /* symbolic name of this mailer */ 99 char *m_mailer; /* pathname of the mailer to use */ 100 u_long m_flags; /* status flags, see below */ 101 short m_badstat; /* the status code to use on unknown error */ 102 short m_mno; /* mailer number internally */ 103 char *m_from; /* pattern for From: header */ 104 char **m_argv; /* template argument vector */ 105 ADDRESS *m_sendq; /* list of addresses to send to */ 106 }; 107 108 typedef struct mailer MAILER; 109 110 # define M_FOPT 000001 /* mailer takes picky -f flag */ 111 # define M_ROPT 000002 /* mailer takes picky -r flag */ 112 # define M_QUIET 000004 /* don't print error on bad status */ 113 # define M_RESTR 000010 /* must be daemon to execute */ 114 # define M_NHDR 000020 /* don't insert From line */ 115 # define M_LOCAL 000040 /* delivery is to this host */ 116 # define M_STRIPQ 000100 /* strip quote characters from user/host */ 117 # define M_MUSER 000200 /* mailer can handle multiple users at once */ 118 # define M_NEEDFROM 000400 /* need arpa-style From: line */ 119 # define M_NEEDDATE 001000 /* need arpa-style Date: line */ 120 # define M_MSGID 002000 /* need Message-Id: field */ 121 # define M_USR_UPPER 010000 /* preserve user case distinction */ 122 # define M_HST_UPPER 020000 /* preserve host case distinction */ 123 # define M_FULLNAME 040000 /* want Full-Name field */ 124 125 # define M_ARPAFMT (M_NEEDDATE|M_NEEDFROM|M_MSGID) 126 127 EXTERN MAILER *Mailer[MAXMAILERS+1]; 128 129 /* special mailer numbers */ 130 # define MN_LOCAL 0 /* local mailer */ 131 # define MN_PROG 1 /* program mailer */ 132 /* mailers from 2 on are arbitrary */ 133 134 135 136 /* 137 ** Header structure. 138 ** This structure is used internally to store header items. 139 */ 140 141 struct header 142 { 143 char *h_field; /* the name of the field */ 144 char *h_value; /* the value of that field */ 145 struct header *h_link; /* the next header */ 146 u_short h_flags; /* status bits, see below */ 147 u_long h_mflags; /* m_flags bits needed */ 148 }; 149 150 typedef struct header HDR; 151 152 EXTERN HDR *Header; /* head of header list */ 153 154 /* 155 ** Header information structure. 156 ** Defined in conf.c, this struct declares the header fields 157 ** that have some magic meaning. 158 */ 159 160 struct hdrinfo 161 { 162 char *hi_field; /* the name of the field */ 163 u_short hi_flags; /* status bits, see below */ 164 u_short hi_mflags; /* m_flags needed for this field */ 165 }; 166 167 extern struct hdrinfo HdrInfo[]; 168 169 /* bits for h_flags and hi_flags */ 170 # define H_EOH 00001 /* this field terminates header */ 171 # define H_DEFAULT 00004 /* if another value is found, drop this */ 172 # define H_USED 00010 /* indicates that this has been output */ 173 # define H_CHECK 00020 /* check h_mflags against m_flags */ 174 # define H_ACHECK 00040 /* ditto, but always (not just default) */ 175 # define H_FORCE 00100 /* force this field, even if default */ 176 # define H_ADDR 00200 /* this field contains addresses */ 177 178 179 /* 180 ** Rewrite rules. 181 */ 182 183 struct rewrite 184 { 185 char **r_lhs; /* pattern match */ 186 char **r_rhs; /* substitution value */ 187 struct rewrite *r_next;/* next in chain */ 188 }; 189 190 extern struct rewrite *RewriteRules[]; 191 192 # define MATCHANY '\020' /* match one or more tokens */ 193 # define MATCHONE '\021' /* match exactly one token */ 194 # define MATCHCLASS '\022' /* match one token in a class */ 195 196 # define CANONNET '\025' /* canonical net, next token */ 197 # define CANONHOST '\026' /* canonical host, next token */ 198 # define CANONUSER '\027' /* canonical user, next N tokens */ 199 200 201 202 /* 203 ** Symbol table definitions 204 */ 205 206 struct symtab 207 { 208 char *s_name; /* name to be entered */ 209 char s_type; /* general type (see below) */ 210 struct symtab *s_next; /* pointer to next in chain */ 211 union 212 { 213 long sv_class; /* bit-map of word classes */ 214 ADDRESS *sv_addr; /* pointer to address header */ 215 MAILER *sv_mailer; /* pointer to mailer */ 216 char *sv_alias; /* alias */ 217 } s_value; 218 }; 219 220 typedef struct symtab STAB; 221 222 /* symbol types */ 223 # define ST_UNDEF 0 /* undefined type */ 224 # define ST_CLASS 1 /* class map */ 225 # define ST_ADDRESS 2 /* an address in parsed format */ 226 # define ST_MAILER 3 /* a mailer header */ 227 # define ST_ALIAS 4 /* an alias */ 228 229 # define s_class s_value.sv_class 230 # define s_addr s_value.sv_addr 231 # define s_mailer s_value.sv_mailer 232 # define s_alias s_value.sv_alias 233 234 extern STAB *stab(); 235 236 /* opcodes to stab */ 237 # define ST_FIND 0 /* find entry */ 238 # define ST_ENTER 1 /* enter if not there */ 239 240 241 242 243 /* 244 ** Statistics structure. 245 */ 246 247 struct statistics 248 { 249 time_t stat_itime; /* file initialization time */ 250 short stat_size; /* size of this structure */ 251 long stat_nf[MAXMAILERS]; /* # msgs from each mailer */ 252 long stat_bf[MAXMAILERS]; /* kbytes from each mailer */ 253 long stat_nt[MAXMAILERS]; /* # msgs to each mailer */ 254 long stat_bt[MAXMAILERS]; /* kbytes to each mailer */ 255 }; 256 257 EXTERN struct statistics Stat; 258 extern long kbytes(); /* for _bf, _bt */ 259 260 261 262 263 /* 264 ** Global variables. 265 */ 266 267 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 268 EXTERN bool MailBack; /* mail back response on error */ 269 EXTERN bool BerkNet; /* called from BerkNet */ 270 EXTERN bool WriteBack; /* write back response on error */ 271 EXTERN bool NoAlias; /* if set, don't do any aliasing */ 272 EXTERN bool ForceMail; /* if set, mail even if already got a copy */ 273 EXTERN bool MeToo; /* send to the sender also */ 274 EXTERN bool IgnrDot; /* don't let dot end messages */ 275 EXTERN bool SaveFrom; /* save leading "From" lines */ 276 EXTERN bool Verbose; /* set if blow-by-blow desired */ 277 EXTERN bool GrabTo; /* if set, get recipients from msg */ 278 EXTERN bool DontSend; /* mark recipients as QDONTSEND */ 279 EXTERN bool NoReturn; /* don't return letter to sender */ 280 EXTERN int OldUmask; /* umask when sendmail starts up */ 281 EXTERN int Debug; /* debugging level */ 282 EXTERN int Errors; /* set if errors */ 283 EXTERN int ExitStat; /* exit status code */ 284 EXTERN int ArpaMode; /* ARPANET handling mode */ 285 EXTERN long MsgSize; /* size of the message in bytes */ 286 extern char InFileName[]; /* input file name */ 287 extern char Transcript[]; /* the transcript file name */ 288 EXTERN FILE *TempFile; /* mail temp file */ 289 EXTERN ADDRESS From; /* the person it is from */ 290 EXTERN char *To; /* the target person */ 291 EXTERN int HopCount; /* hop count */ 292 EXTERN long CurTime; /* time of this message */ 293 EXTERN int AliasLevel; /* depth of aliasing */ 294 EXTERN char *OrigFrom; /* the From: line read from the message */ 295 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 296 EXTERN bool HasXscrpt; /* set if we have a transcript */ 297 298 299 # include <sysexits.h> 300 301 # define setstat(s) { if (ExitStat == EX_OK) ExitStat = s; } 302 303 304 /* useful functions */ 305 306 extern char *newstr(); 307 extern ADDRESS *parse(); 308 extern char *xalloc(); 309 extern char *expand(); 310 extern bool sameaddr(); 311