1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #ifndef _MAIL_H 32 #define _MAIL_H 33 34 /* from OpenSolaris "mail.h 1.17 05/06/08 SMI" */ 35 36 /* 37 * Portions Copyright (c) 2005 Gunnar Ritter, Freiburg i. Br., Germany 38 * 39 * Sccsid @(#)mail.h 1.11 (gritter) 7/3/05 40 */ 41 42 /* 43 * All global externs defined here. All variables are initialized 44 * in init.c 45 * 46 * !!!!!IF YOU CHANGE (OR ADD) IT HERE, DO IT THERE ALSO !!!!!!!! 47 * 48 */ 49 #include <errno.h> 50 #include <fcntl.h> 51 #include <stdio.h> 52 #include <ctype.h> 53 #include <sys/types.h> 54 #include <errno.h> 55 #include <pwd.h> 56 #include <signal.h> 57 #include <string.h> 58 #include <grp.h> 59 /* The following is a kludge to allow for inconsistent header files in SVR4 */ 60 #define _CLOCK_T 61 #include <time.h> 62 #include <sys/stat.h> 63 #include <setjmp.h> 64 #include <sys/utsname.h> 65 #include <limits.h> 66 67 #include <utime.h> 68 #include "libmail.h" 69 70 #include <sigset.h> 71 72 #define CHILD 0 73 #define SAME 0 74 75 #define BELL 07 76 77 # define PIPER "/usr/lib/mail/mail_pipe" 78 79 #define SENDMAIL "/usr/lib/sendmail" 80 81 #define CERROR -1 82 #define CSUCCESS 0 83 84 #define TRUE 1 85 #define FALSE 0 86 87 #define HEAD 1 88 #define TAIL 0 89 90 #define REAL 1 91 #define DEFAULT 0 92 93 /* findSurg() return values */ 94 #define NOMATCH -1 95 #define DELIVER 0 96 #define POSTDELIVER 1 97 #define DENY 2 98 #define TRANSLATE 3 99 100 /* sendsurg() return values */ 101 #define FAILURE 0 102 #define CONTINUE 1 103 #define SUCCESS 2 104 /* TRANSLATE 3 */ 105 106 #define HDRSIZ 1024 /* maximum length of header line */ 107 108 #define E_FLGE 1 /* flge error */ 109 #define E_FLGE_OM 2 /* flgE error, mail present but already accessed */ 110 #define E_REMOTE 1 /* unknown remote */ 111 #define E_FILE 2 /* file error */ 112 #define E_SPACE 3 /* no space */ 113 #define E_FRWD 4 /* cannot forward */ 114 #define E_SYNTAX 5 /* syntax error */ 115 #define E_FRWL 6 /* forwarding loop */ 116 #define E_SNDR 7 /* invalid sender */ 117 #define E_USER 8 /* invalid user */ 118 #define E_FROM 9 /* too many From lines */ 119 #define E_PERM 10 /* bad permissions */ 120 #define E_MBOX 11 /* mbox problem */ 121 #define E_TMP 12 /* temporary file problem */ 122 #define E_DEAD 13 /* Cannot create dead.letter */ 123 #define E_UNBND 14 /* Unbounded forwarding */ 124 #define E_LOCK 15 /* cannot create lock file */ 125 #define E_GROUP 16 /* no group id of 'mail' */ 126 #define E_MEM 17 /* malloc failure */ 127 #define E_FORK 18 /* could not fork */ 128 #define E_PIPE 19 /* could not pipe */ 129 #define E_OWNR 20 /* invoker does not own mailfile */ 130 #define E_DENY 21 /* permission denied by mailsurr file */ 131 #define E_SURG 22 /* surrogate command failed - rc != 0 || 99 */ 132 133 #define H_AFWDCNT 1 /* "Auto-Forward-Count:" */ 134 #define H_AFWDFROM 2 /* "Auto-Forwarded-From:" */ 135 /* H_CLEN 3 "Content-Length:" */ 136 #define H_CTYPE 4 /* "Content-Type:" */ 137 #define H_DATE 5 /* "Date:" */ 138 #define H_DEFOPTS 6 /* "Default-Options:" */ 139 #define H_EOH 7 /* "End-of-Header:" */ 140 #define H_FROM 8 /* "From " */ 141 #define H_FROM1 9 /* ">From " */ 142 #define H_FROM2 10 /* "From: " */ 143 /* H_MIMEVERS 11 "MIME-Version:" */ 144 #define H_MTSID 12 /* "MTS-Message-ID:" */ 145 #define H_MTYPE 13 /* "Message-Type:" */ 146 #define H_MVERS 14 /* "Message-Version:" */ 147 #define H_MSVC 15 /* "Message-Service:" */ 148 #define H_RECEIVED 16 /* "Received:" */ 149 #define H_RVERS 17 /* "Report-Version:" */ 150 #define H_SUBJ 18 /* "Subject:" */ 151 #define H_TO 19 /* "To:" */ 152 #define H_TCOPY 20 /* ">To:" */ 153 #define H_TROPTS 21 /* "Transport-Options:" */ 154 #define H_UAID 22 /* "UA-Content-ID:" */ 155 #define H_DAFWDFROM 23 /* Hold A-F-F when sending Del. Notf. */ 156 #define H_DTCOPY 24 /* Hold ">To:" when sending Del. Notf.*/ 157 #define H_DRECEIVED 25 /* Hold Rcvd: when sending Del. Notf.*/ 158 #define H_CONT 26 /* Continuation of previous line */ 159 #define H_NAMEVALUE 27 /* unrecognized "name: value" hdr line*/ 160 161 /* MTA Transport Options */ 162 #define DELIVERY 001 163 #define NODELIVERY 002 164 #define REPORT 010 165 #define RETURN 020 166 #define IGNORE 040 167 168 /* 169 copylet flags 170 */ 171 #define REMOTE 1 /* remote mail, add rmtmsg */ 172 #define ORDINARY 2 173 #define ZAP 3 /* zap header and trailing empty line */ 174 #define FORWARD 4 175 #define TTY 5 /* suppress binary to tty */ 176 177 #define LSIZE (2*BUFSIZ) /* maximum size of a line */ 178 #define MAXLET 1000 /* maximum number of letters */ 179 #define FROMLEVELS 20 /* maxium number of forwards */ 180 #ifdef FILENAME_MAX 181 # define MAXFILENAME FILENAME_MAX /* max length of a filename */ 182 #else 183 # define MAXFILENAME 512 /* max length of a filename */ 184 #endif 185 #define DEADPERM 0600 /* permissions of dead.letter */ 186 187 #ifndef MFMODE 188 #define MFMODE 0660 /* create mode for `/var/mail' files */ 189 #endif 190 191 #define A_OK 0 /* return value for access */ 192 #define A_EXECUTE 1 193 #define A_EXIST 0 /* access check for existence */ 194 #define A_WRITE 2 /* access check for write permission */ 195 #define A_READ 4 /* access check for read permission */ 196 197 # define MAILSURR "/etc/mail/mailsurr" 198 # define MAILCNFG "/etc/mail/mailcnfg" 199 200 struct hdr { 201 char *tag; 202 int default_display; 203 }; 204 205 struct hdrs { 206 struct hdrs *next; 207 struct hdrs *prev; 208 struct hdrs *cont; /* Continuation lines */ 209 char value[HDRSIZ+1]; 210 }; 211 212 struct hdrlines { 213 struct hdrs *head; 214 struct hdrs *tail; 215 }; 216 217 typedef struct recip { 218 struct recip *next; 219 char *name; 220 } recip; 221 222 typedef struct reciplist { 223 recip *last_recip; 224 recip recip_list; 225 } reciplist; 226 227 struct let { 228 long adr; /* offset in mailfile of letter n */ 229 char change; /* disposition status of letter n */ 230 char text; /* 1 ==> text content, 0 ==> binary content. 231 * This is determined INDEPENDENTLY of what 232 * the Content-type, if present, says... 233 */ 234 }; 235 236 typedef enum t_surrtype 237 { 238 t_eof, t_transport = '<', 239 t_accept = 'a', t_deny = 'd', 240 t_translate = 't', t_postprocess = '>' 241 } t_surrtype; 242 243 typedef struct t_surrfile 244 { 245 /* originator's regular expression */ 246 string *orig_pattern; 247 char *orig_regex; 248 int orig_reglen; 249 int orig_nbra; 250 251 /* recipient's regular expression */ 252 string *recip_pattern; 253 char *recip_regex; 254 int recip_reglen; 255 int recip_nbra; 256 257 /* the type of the command string */ 258 t_surrtype surr_type; 259 260 int batchsize; /* transport translate postprocess */ 261 char *statlist; /* transport */ 262 string *cmd_left; /* transport translate postprocess */ 263 string *cmd_right; /* transport translate postprocess */ 264 int fullyresolved; /* translate */ 265 } t_surrfile; 266 267 #include <stdlib.h> 268 #include <unistd.h> 269 270 extern void Dout(char *subname, int level, char *fmt, ...); 271 extern void Tout(char *subname, char *msg, ...); 272 extern int accessmf(char *path); 273 extern int add_recip(reciplist *plist, char *name, int checkdups); 274 extern char *altcompile(const char *instring, char *expbuf, char *endbuf); 275 extern int areforwarding(char *mailfile); 276 extern void cat(char**, size_t *, const char*, const char*); 277 extern int ckdlivopts(int tcopy_hdr, int *svopts); 278 extern void cksaved(char *user); 279 extern int cksurg_rc(int surr_num, int rc); 280 extern void clr_hinfo(void); 281 extern void clrhdr(int hdrtype); 282 extern void cmdexpand(int letnum, string *instr, string *outstr, char **lbraslist, char **lbraelist); 283 extern void concat(char **, size_t *, const char *); 284 extern void copyback(void); 285 extern int copylet(int letnum, FILE *f, int type); 286 extern void copymt(FILE *f1, FILE *f2); 287 #define cpy(a, b, c) cat(a, b, c, NULL) 288 extern void createmf(uid_t uid, char *file); 289 extern void del_reciplist (reciplist *list); 290 extern void delete(int); 291 extern void doFopt(void); 292 extern void done(int); 293 extern void sig_done(int); 294 extern FILE *doopen(char *file, char *type, int errnum); 295 extern int dowait(pid_t pidval); 296 extern void dumpaff(int type, int htype, int *didafflines, int *suppress, FILE *f); 297 extern void dumprcv(int type, int htype, int *didrcvlines, int *suppress, FILE *f); 298 extern void errmsg(int error_value, char *error_message); 299 extern char *fgetline(char **, size_t *, size_t *, FILE *); 300 extern int findSurg(int letnum, string *execbuf, int flag, int *psurr_num, int *paccept, string *lorig, string *lrecipname); 301 extern void gendeliv(FILE *fp, int rc, char *name); 302 extern char *getarg(char *, char *); 303 extern int getcomment(char *s, char *q); 304 extern int gethead(int current, int all); 305 #define getline(a, b, c) ma_getline(a, b, c) 306 extern int getline(char **ptr2line, size_t *max, FILE *f); 307 extern int getnumbr(char *s); 308 extern int getsurr(FILE *fp, string *buf, int firstfield); 309 extern void goback(int letnum); 310 extern int init(void); 311 extern void initsurrfile(void); 312 extern int isheader(char *lp, int *ctfp); 313 extern int isit(char *lp, int type); 314 extern int islocal(char *user, uid_t *puid); 315 extern int istext(unsigned char *s, int size); 316 extern int legal(char *file); 317 extern void lock(char *user); 318 extern void madd_recip(reciplist *plist, char *name, int checkdups); 319 extern char *mailcompile(string *pattern, int *retlen, int *retnbra); 320 extern void mkdead(void); 321 extern void mktmp(void); 322 extern void mta_ercode(FILE *outfile); 323 extern void new_reciplist (reciplist *list); 324 extern int notme(char *fto, char *myname); 325 extern int parse(int argc, char **argv); 326 extern int pckaffspot(void); 327 extern int pckrcvspot(void); 328 extern void pickFrom(char *lineptr); 329 extern int pipletr(int letter, char *command, int cltype); 330 extern void poplist (int hdrtype, int where); 331 extern int printhdr (int type, int hdrtype, struct hdrs *hptr, FILE *fp); 332 extern void printmail(void); 333 extern void pushlist(int hdrtype, int where, char *s, int contflg); 334 extern void savdead(int); 335 extern void savehdrs(char *s, int hdrtype); 336 extern int sel_disp (int type, int hdrtype, char *s); 337 extern int sendlist(reciplist *list, int letnum, int level); 338 extern void sendmail(int argc, char **argv); 339 extern int sendsurg(reciplist *plist, int letnum, int flag, int local); 340 extern void setletr(int letter, int status); 341 extern void (*setsig(int i, void(*f)(int)))(int); 342 extern void setsurg_bt(string *st, int *pbatchsize, int *presolved); 343 extern char *setsurg_rc(string *st, int defreal, int *pbatchsize); 344 extern char **setup_exec(char*); 345 #define smalloc(n) srealloc(NULL, n); 346 extern void *srealloc(void *, size_t); 347 extern void stamp(void); 348 extern int systm(char *s); 349 extern void tmperr(void); 350 extern string *tokdef(string *fld, string *tok, char *name); 351 extern int translate(reciplist *plist, char *cmdstr, char *origname); 352 extern void unlock(void); 353 extern int validmsg(int); 354 extern int wtmpf(char *str, int length); 355 356 extern int ac; /* argument list count */ 357 extern char **av; /* argument list */ 358 extern int affbytecnt; /* Total bytes of Auto-Fwd. info in msg. */ 359 extern int affcnt; /* Number of Auto-Fwd.-From: lines in msg. */ 360 extern int Daffbytecnt; /* Hold affbytecnt when sending Deliv. Notif. */ 361 extern int Daffcnt; /* Hold affcnt when sending Deliv. Notif. */ 362 extern char binmsg[]; 363 extern int changed; /* > 0 says mailfile has changed */ 364 extern char datestring[60]; 365 extern char dbgfname[20]; /* name of file for debugging output */ 366 extern FILE *dbgfp; /* FILE* for debugging output */ 367 extern char dead[]; /* name of dead.letter */ 368 extern int debug; /* Controls debugging level. 0 ==> no debugging */ 369 extern int delflg; 370 extern int dflag; /* 1 says returning unsendable mail */ 371 extern char *errlist[]; 372 extern int error; /* Local value for error */ 373 extern char *failsafe; /* $FAILSAFE */ 374 extern int file_size; 375 extern int flge; /* 1 ==> 'e' option specified */ 376 extern int flgE; /* 1 ==> 'E' option specified */ 377 extern int flgF; /* 1 ==> Installing/Removing Forwarding */ 378 extern int flgf; /* 1 ==> 'f' option specified */ 379 extern int flgh; /* 1 ==> 'h' option specified */ 380 extern int flgm; 381 extern int flgp; /* 1 ==> 'p' option specified */ 382 extern int flgP; /* 1 ==> 'P' option specified */ 383 extern int flgr; /* 1 ==> 'r' option -- print in fifo order */ 384 extern int flgt; /* 1 ==> 't' option -- add To: line to letter */ 385 extern int flgT; /* 1 ==> 'T' option specified */ 386 extern int flgw; /* 1 ==> 'w' option specified */ 387 extern int fnuhdrtype; /* type of first non-UNIX header line */ 388 extern char forwmsg[]; /* " forwarded by %s" */ 389 extern char frwlmsg[]; /* "Forwarding loop detected in mailfile" */ 390 extern char *fromS; /* stored here by sendmail for sendsurg */ 391 extern size_t fromSsize; 392 extern char *fromU; /* stored here by sendmail for sendsurg */ 393 extern size_t fromUsize; 394 extern char frwrd[]; /* forwarding sentinel */ 395 extern char fwdFrom[1024]; 396 extern int goerr; /* counts parsing errors */ 397 extern struct group *grpptr; /* pointer to struct group */ 398 extern struct hdrlines hdrlines[H_CONT]; 399 extern struct hdr header[]; /* H_* #define's used to index into array */ 400 extern char *help[]; 401 extern char *hmbox; /* pointer to $HOME/mbox */ 402 extern size_t hmboxsize; 403 extern char *hmdead; /* pointer to $HOME/dead.letter */ 404 extern size_t hmdeadsize; 405 extern char *home; /* pointer to $HOME */ 406 extern time_t iop; 407 extern int interactive; /* 1 says user is interactive */ 408 extern int ismail; /* default to program=mail */ 409 extern int deliverflag; /* -d flag, bypass sendmail and go to mbox */ 410 extern int fromflag; /* -f from_user while sending */ 411 extern int keepdbgfile; /* does debug file get deleted at end? */ 412 extern struct let let[MAXLET]; 413 extern char *lettmp; /* pointer to tmp filename */ 414 extern char lfil[MAXFILENAME]; 415 extern char *line; /* holds a line of a letter in many places */ 416 extern size_t linesize; 417 extern char *mailfile; /* pointer to mailfile */ 418 extern char mailcnfg[]; /* /etc/mail/mailcnfg */ 419 extern char maildir[]; /* directory for mail files */ 420 extern gid_t mailgrp; /* numeric id of group 'mail' */ 421 extern char mailsave[]; /* dir for save files */ 422 extern char *mailsurr; /* surrogate file name */ 423 extern FILE *malf; /* File pointer for mailfile */ 424 extern int maxerr; /* largest value of error */ 425 extern int mb_cur_max; /* MB_CUR_MAX */ 426 extern char mbox[]; /* name for mbox */ 427 extern uid_t mf_uid; /* uid of user's mailfile */ 428 extern gid_t mf_gid; /* gid of user's mailfile */ 429 extern char *msgtype; 430 extern char *my_name; /* user's name who invoked this command */ 431 extern size_t my_namesize; 432 extern char from_user[1024];/* name of user mail's from, used w/ -f */ 433 extern uid_t my_euid; /* user's euid */ 434 extern gid_t my_egid; /* user's egid */ 435 extern uid_t my_uid; /* user's uid */ 436 extern gid_t my_gid; /* user's gid */ 437 extern int nlet; /* current number of letters in mailfile */ 438 extern int onlet; /* number of letters in mailfile at startup*/ 439 extern int optcnt; /* Number of options specified */ 440 extern int orig_aff; /* orig. msg. contained H_AFWDFROM lines */ 441 extern int orig_dbglvl; /* argument to -x invocation option */ 442 extern int orig_rcv; /* orig. msg. contained H_RECEIVED lines */ 443 extern int orig_tcopy; /* orig. msg. contained H_TCOPY lines */ 444 extern struct passwd *pwd; /* holds passwd entry for this user */ 445 extern int pflg; /* binary message display override flag */ 446 extern int Pflg; /* Selective display flag; 1 ==> display all */ 447 extern char *program; /* program name */ 448 extern int rcvbytecnt; /* Total bytes of Received: info in msg. */ 449 extern int Drcvbytecnt; /* Hold rcvbytecnt when sending Del. Notif. */ 450 extern char *recipname; /* full recipient name/address */ 451 extern int replying; /* 1 says we are replying to a letter */ 452 extern char RFC822datestring[60];/* Date in RFC822 date format */ 453 extern char rmtmsg[]; /* "remote from %s" */ 454 extern char *Rpath; /* return path to sender of message */ 455 extern size_t Rpathsize; 456 extern char rtrnmsg[]; /* "UNDELIVERABLE MAIL being returned by %s" */ 457 extern int sav_errno; 458 extern char *savefile; /* holds filename of save file */ 459 extern size_t savefilesize; 460 extern void (*saveint)(int); 461 extern char *seldisp[]; 462 extern int sending; /* TRUE==>sending mail; FALSE==>printing mail */ 463 extern char *m_sendto; 464 extern size_t m_sendtosize; 465 extern jmp_buf sjbuf; 466 extern int surg_rc; /* exit code of surrogate command */ 467 extern t_surrfile *surrfile; /* the compiled surrogate file */ 468 extern int surr_len; /* # entries in surrogate file */ 469 extern char *SURRcmdstr; /* save in case of FAILURE */ 470 extern FILE *SURRerrfile; /* stderr from surrogate in case of failure */ 471 extern char *thissys; /* Holds name of the system we are on */ 472 extern FILE *tmpf; /* file pointer for temporary files */ 473 extern mode_t umsave; 474 extern struct utsname utsn; 475 extern struct utimbuf *utimep; 476 extern char uval[1024]; 477 478 #ifdef NOTDEF 479 #ifdef sun 480 #define _NFILE getdtablesize() 481 #endif 482 #endif /* NOTDEF */ 483 484 #ifdef __GNUC__ 485 #define UNUSED __attribute__ ((unused)) 486 #else 487 #define UNUSED 488 #endif 489 490 #define nextb(to, tosize, i) \ 491 if ((i) >= *(tosize)) \ 492 *(to) = srealloc(*(to), *(tosize) += 32); \ 493 (*(to))[(i)++] 494 495 #endif /* _MAIL_H */ 496