usr/src/cmd/mailx/hdr/def.h

   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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2014 Joyent, Inc.
  24  */
  25
  26 /*
  27  * Copyright (c) 1985, 2010, Oracle and/or its affiliates. All rights reserved.
  28  * Copyright (c) 2016 by Delphix. All rights reserved.
  29  */
  30
  31 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  32 /*      All Rights Reserved   */
  33
  34 /*
  35  * University Copyright- Copyright (c) 1982, 1986, 1988
  36  * The Regents of the University of California
  37  * All Rights Reserved
  38  *
  39  * University Acknowledgment- Portions of this document are derived from
  40  * software developed by the University of California, Berkeley, and its
  41  * contributors.
  42  */
  43
  44 #ifndef _MAILX_DEF_H
  45 #define _MAILX_DEF_H
  46
  47 #ifdef  __cplusplus
  48 extern "C" {
  49 #endif
  50
  51 #include <sys/types.h>
  52 #include <signal.h>
  53 #include <stdio.h>
  54 #include <fcntl.h>
  55 #include <string.h>
  56 #include <termio.h>
  57 #include <setjmp.h>
  58 #include <time.h>
  59 #include <sys/stat.h>
  60 #include <maillock.h>
  61 #include <ctype.h>
  62 #include <errno.h>
  63 #ifndef preSVr4
  64 #include <unistd.h>
  65 #include <stdlib.h>
  66 #include <ulimit.h>
  67 #include <wait.h>
  68 #include <libcmdutils.h>
  69 #endif
  70 #ifdef VMUNIX
  71 #include <sys/wait.h>
  72 #endif
  73 #include "local.h"
  74 #include "uparm.h"
  75
  76 /*
  77  * mailx -- a modified version of a University of California at Berkeley
  78  *      mail program
  79  */
  80
  81 #define SENDESC         '~'             /* Default escape for sending */
  82 #define NMLSIZE         1024            /* max names in a message list */
  83 #define PATHSIZE        1024            /* Size of pathnames throughout */
  84 #define HSHSIZE         59              /* Hash size for aliases and vars */
  85 #define HDRFIELDS       3               /* Number of header fields */
  86 #define LINESIZE        5120            /* max readable line width */
  87 #define STRINGSIZE      ((unsigned)128) /* Dynamic allocation units */
  88 #define MAXARGC         1024            /* Maximum list of raw strings */
  89 #define NOSTR           ((char *)0)     /* Nill string pointer */
  90 #define NOSTRPTR        ((char **)0)    /* Nill pointer to string pointer */
  91 #define NOINTPTR        ((int *)0)      /* Nill pointer */
  92 #define MAXEXP          25              /* Maximum expansion of aliases */
  93
  94 /* A nice function to string compare */
  95 #define equal(a, b)     (strcmp(a, b) == 0)
  96
  97 /* Keep a list of all opened files */
  98 #define fopen(s, t)     my_fopen(s, t)
  99
 100 /* Delete closed file from the list */
 101 #define fclose(s)       my_fclose(s)
 102
 103 struct message {
 104         off_t   m_offset;               /* offset in block of message */
 105         long    m_size;                 /* Bytes in the message */
 106         long    m_lines;                /* Lines in the message */
 107         long    m_clen;                 /* Content-Length of the mesg   */
 108         short   m_flag;                 /* flags, see below */
 109         char    m_text;                 /* TRUE if the contents is text */
 110                                         /* False otherwise              */
 111 };
 112
 113 typedef struct fplst {
 114         FILE    *fp;
 115         struct  fplst   *next;
 116 } NODE;
 117
 118 /*
 119  * flag bits.
 120  */
 121
 122 #define MUSED           (1<<0)          /* entry is used, but this bit isn't */
 123 #define MDELETED        (1<<1)          /* entry has been deleted */
 124 #define MSAVED          (1<<2)          /* entry has been saved */
 125 #define MTOUCH          (1<<3)          /* entry has been noticed */
 126 #define MPRESERVE       (1<<4)          /* keep entry in sys mailbox */
 127 #define MMARK           (1<<5)          /* message is marked! */
 128 #define MODIFY          (1<<6)          /* message has been modified */
 129 #define MNEW            (1<<7)          /* message has never been seen */
 130 #define MREAD           (1<<8)          /* message has been read sometime. */
 131 #define MSTATUS         (1<<9)          /* message status has changed */
 132 #define MBOX            (1<<10)         /* Send this to mbox, regardless */
 133 #define MBOXED          (1<<11)         /* message has been sent to mbox */
 134
 135 #define H_AFWDCNT       1               /* "Auto-Forward-Count:"  */
 136 #define H_AFWDFROM      2               /* "Auto-Forwarded-From:" */
 137 #define H_CLEN          3               /* "Content-Length:"    */
 138 #define H_CTYPE         4               /* "Content-Type:"      */
 139 #define H_DATE          5               /* "Date:"              */
 140 #define H_DEFOPTS       6               /* "Default-Options:"   */
 141 #define H_EOH           7               /* "End-of-Header:"     */
 142 #define H_FROM          8               /* "From "              */
 143 #define H_FROM1         9               /* ">From "             */
 144 #define H_FROM2         10              /* "From: "             */
 145 #define H_MTSID         11              /* "MTS-Message-ID:"    */
 146 #define H_MTYPE         12              /* "Message-Type:"      */
 147 #define H_MVERS         13              /* "Message-Version:"   */
 148 #define H_MSVC          14              /* "Message-Service:"   */
 149 #define H_RECEIVED      15              /* "Received:"          */
 150 #define H_RVERS         16              /* "Report-Version:"    */
 151 #define H_STATUS        17              /* "Status:"            */
 152 #define H_SUBJ          18              /* "Subject:"           */
 153 #define H_TO            19              /* "To:"                */
 154 #define H_TCOPY         20              /* ">To:"               */
 155 #define H_TROPTS        21              /* "Transport-Options:"   */
 156 #define H_UAID          22              /* "UA-Content-ID:"       */
 157
 158 #define H_DAFWDFROM     23      /* Hold A-F-F when sending Del. Notf. */
 159 #define H_DTCOPY        24      /* Hold ">To:" when sending Del. Notf. */
 160 #define H_DRECEIVED     25      /* Hold Rcvd: when sending Del. Notf. */
 161 #define H_CONT          26      /* Continuation of previous line */
 162 #define H_NAMEVALUE     27      /* unrecognized "name: value" hdr line */
 163
 164 /*
 165  * Format of the command description table.
 166  * The actual table is declared and initialized
 167  * in lex.c
 168  */
 169
 170 struct cmd {
 171         char    *c_name;                /* Name of command */
 172         int     (*c_func)(void *);      /* Implementor of the command */
 173         short   c_argtype;              /* Type of arglist (see below) */
 174         short   c_msgflag;              /* Required flags of messages */
 175         short   c_msgmask;              /* Relevant flags of messages */
 176 };
 177
 178 /* can't initialize unions */
 179
 180 #define c_minargs c_msgflag             /* Minimum argcount for RAWLIST */
 181 #define c_maxargs c_msgmask             /* Max argcount for RAWLIST */
 182
 183 /*
 184  * Argument types.
 185  */
 186
 187 #define MSGLIST  0              /* Message list type */
 188 #define STRLIST  1              /* A pure string */
 189 #define RAWLIST  2              /* Shell string list */
 190 #define NOLIST   3              /* Just plain 0 */
 191 #define NDMLIST  4              /* Message list, no defaults */
 192
 193 #define P       040             /* Autoprint dot after command */
 194 #define I       0100            /* Interactive command bit */
 195 #define M       0200            /* Legal from send mode bit */
 196 #define W       0400            /* Illegal when read only bit */
 197 #define F       01000           /* Is a conditional command */
 198 #define T       02000           /* Is a transparent command */
 199 #define R       04000           /* Cannot be called from collect */
 200
 201 /*
 202  * Oft-used mask values
 203  */
 204
 205 #define MMNORM  (MDELETED|MSAVED) /* Look at both save and delete bits */
 206 #define MMNDEL  MDELETED        /* Look only at deleted bit */
 207
 208 /*
 209  * Structure used to return a break down of a head
 210  * line
 211  */
 212
 213 typedef struct headline {
 214         custr_t *hl_from;       /* The name of the sender */
 215         custr_t *hl_tty;        /* Its tty string (if any) */
 216         custr_t *hl_date;       /* The entire date string */
 217 } headline_t;
 218
 219 #define GTO     1               /* Grab To: line */
 220 #define GSUBJECT 2              /* Likewise, Subject: line */
 221 #define GCC     4               /* And the Cc: line */
 222 #define GBCC    8               /* And also the Bcc: line */
 223 #define GDEFOPT 16              /* And the Default-Options: lines */
 224 #define GNL     32              /* Print blank line after */
 225 #define GOTHER  64              /* Other header lines */
 226 #define GMASK   (GTO|GSUBJECT|GCC|GBCC|GDEFOPT|GNL|GOTHER)
 227                                 /* Mask of all header lines */
 228 #define GDEL    128             /* Entity removed from list */
 229 #define GCLEN   256             /* Include Content-Length header */
 230
 231 /*
 232  * Structure used to pass about the current
 233  * state of the user-typed message header.
 234  */
 235
 236 struct header {
 237         char    *h_to;                  /* Dynamic "To:" string */
 238         char    *h_subject;             /* Subject string */
 239         char    *h_cc;                  /* Carbon copies string */
 240         char    *h_bcc;                 /* Blind carbon copies */
 241         char    *h_defopt;              /* Default options */
 242         char    **h_others;             /* Other header lines */
 243         int     h_seq;                  /* Sequence for optimization */
 244 };
 245
 246 /*
 247  * Structure of namelist nodes used in processing
 248  * the recipients of mail and aliases and all that
 249  * kind of stuff.
 250  */
 251
 252 struct name {
 253         struct  name *n_flink;          /* Forward link in list. */
 254         struct  name *n_blink;          /* Backward list link */
 255         short   n_type;                 /* From which list it came */
 256         char    *n_name;                /* This fella's name */
 257         char    *n_full;                /* Full name */
 258 };
 259
 260 /*
 261  * Structure of a variable node.  All variables are
 262  * kept on a singly-linked list of these, rooted by
 263  * "variables"
 264  */
 265
 266 struct var {
 267         struct  var *v_link;            /* Forward link to next variable */
 268         char    *v_name;                /* The variable's name */
 269         char    *v_value;               /* And it's current value */
 270 };
 271
 272 struct mgroup {
 273         struct  mgroup *ge_link;        /* Next person in this group */
 274         char    *ge_name;               /* This person's user name */
 275 };
 276
 277 struct grouphead {
 278         struct  grouphead *g_link;      /* Next grouphead in list */
 279         char    *g_name;                /* Name of this group */
 280         struct  mgroup *g_list;         /* Users in group. */
 281 };
 282
 283 #define NIL     ((struct name *)NULL)   /* The nil pointer for namelists */
 284 #define NONE    ((struct cmd *)NULL)    /* The nil pointer to command tab */
 285 #define NOVAR   ((struct var *)NULL)    /* The nil pointer to variables */
 286 #define NOGRP   ((struct grouphead *)NULL) /* The nil grouphead pointer */
 287 #define NOGE    ((struct mgroup *)NULL) /* The nil group pointer */
 288 #define NOFP    ((struct fplst *)NULL)  /* The nil file pointer */
 289
 290 #define TRUE    1
 291 #define FALSE   0
 292
 293 #define DEADPERM        0600            /* permissions of dead.letter */
 294 #define TEMPPERM        0600            /* permissions of temp files */
 295 #define MBOXPERM        0600            /* permissions of ~/mbox */
 296
 297 #ifndef MFMODE
 298 #define MFMODE          0600            /* create mode for `/var/mail' files */
 299 #endif
 300
 301 /*
 302  * Structure of the hash table of ignored header fields
 303  */
 304 struct ignore {
 305         struct ignore   *i_link;        /* Next ignored field in bucket */
 306         char            *i_field;       /* This ignored field */
 307 };
 308
 309 #ifdef preSVr4
 310 struct utimbuf {
 311         time_t  actime;
 312         time_t  modtime;
 313 };
 314 #else
 315 #include        <utime.h>
 316 #endif
 317
 318 /*
 319  * Token values returned by the scanner used for argument lists.
 320  * Also, sizes of scanner-related things.
 321  */
 322
 323 #define TEOL            0               /* End of the command line */
 324 #define TNUMBER         1               /* A message number */
 325 #define TDASH           2               /* A simple dash */
 326 #define TSTRING         3               /* A string (possibly containing -) */
 327 #define TDOT            4               /* A "." */
 328 #define TUP             5               /* An "^" */
 329 #define TDOLLAR         6               /* A "$" */
 330 #define TSTAR           7               /* A "*" */
 331 #define TOPEN           8               /* An '(' */
 332 #define TCLOSE          9               /* A ')' */
 333 #define TPLUS           10              /* A '+' */
 334
 335 #define REGDEP          2               /* Maximum regret depth. */
 336 #define STRINGLEN       1024            /* Maximum length of string token */
 337
 338 /*
 339  * Constants for conditional commands.  These describe whether
 340  * we should be executing stuff or not.
 341  */
 342
 343 #define CANY            0               /* Execute in send or receive mode */
 344 #define CRCV            1               /* Execute in receive mode only */
 345 #define CSEND           2               /* Execute in send mode only */
 346 #define CTTY            3               /* Execute if attached to a tty only */
 347 #define CNOTTY          4               /* Execute if not attached to a tty */
 348
 349 /*
 350  * Flags for msend().
 351  */
 352
 353 #define M_IGNORE        1               /* Do "ignore/retain" processing */
 354 #define M_SAVING        2               /* Saving to a file/folder */
 355
 356 /*
 357  * VM/UNIX has a vfork system call which is faster than forking.  If we
 358  * don't have it, fork(2) will do . . .
 359  */
 360
 361 #if !defined(VMUNIX) && defined(preSVr4)
 362 #define vfork() fork()
 363 #endif
 364 #ifndef SIGRETRO
 365 #define sigchild()
 366 #endif
 367
 368
 369 /*
 370  * 4.2bsd signal interface help...
 371  */
 372 #ifdef VMUNIX
 373 #define sigset(s, a)    signal(s, a)
 374 #define sigsys(s, a)    signal(s, a)
 375 #else
 376 #ifndef preSVr4
 377 /* SVr4 version of sigset() in fio.c */
 378 #define sigsys(s, a)    signal(s, a)
 379 #define setjmp(x)       sigsetjmp((x), 1)
 380 #define longjmp         siglongjmp
 381 #define jmp_buf         sigjmp_buf
 382 #else
 383 #define OLD_BSD_SIGS
 384 #endif
 385 #endif
 386
 387 /*
 388  * Truncate a file to the last character written. This is
 389  * useful just before closing an old file that was opened
 390  * for read/write.
 391  */
 392 #define trunc(stream)   ftruncate(fileno(stream), (long)ftell(stream))
 393
 394 /*
 395  * The pointers for the string allocation routines,
 396  * there are NSPACE independent areas.
 397  * The first holds STRINGSIZE bytes, the next
 398  * twice as much, and so on.
 399  */
 400
 401 #define NSPACE  25                      /* Total number of string spaces */
 402 struct strings {
 403         char    *s_topFree;             /* Beginning of this area */
 404         char    *s_nextFree;            /* Next alloctable place here */
 405         unsigned s_nleft;               /* Number of bytes left here */
 406 };
 407
 408 /* The following typedefs must be used in SVR4 */
 409 #ifdef preSVr4
 410 #ifndef sun
 411 typedef int gid_t;
 412 typedef int uid_t;
 413 typedef int mode_t;
 414 typedef int pid_t;
 415 #endif
 416 #endif
 417
 418 #define STSIZ   40
 419 #define TMPSIZ  14
 420 /*
 421  * Forward declarations of routine types to keep lint and cc happy.
 422  */
 423
 424 extern int              Copy(int *msgvec);
 425 extern FILE             *Fdopen(int fildes, char *mode);
 426 extern int              Followup(int *msgvec);
 427 extern char             *Getf(register char *s);
 428 extern int              More(int *msgvec);
 429 extern int              Respond(int *msgvec);
 430 extern int              Save(int *msgvec);
 431 extern int              Sendm(char *str);
 432 extern int              Sput(char str[]);
 433 extern int              Type(int *msgvec);
 434 extern void             Verhogen(void);
 435 extern char             *addone(char hf[], char news[]);
 436 extern char             *addto(char hf[], char news[]);
 437 extern void             alter(char name[]);
 438 extern int              alternates(char **namelist);
 439 extern void             announce(void);
 440 extern int              any(int ch, char *str);
 441 extern int              anyof(register char *s1, register char *s2);
 442 extern int              argcount(char **argv);
 443 extern void             assign(char name[], char value[]);
 444 extern int              blankline(const char linebuf[]);
 445 extern struct name      *cat(struct name *n1, struct name *n2);
 446 extern FILE             *collect(struct header *hp);
 447 extern void             commands(void);
 448 extern char             *copy(char *str1, char *str2);
 449 extern int              copycmd(char str[]);
 450 extern int              deassign(register char *s);
 451 extern int              delm(int *msgvec);
 452 extern struct name      *delname(register struct name *np, char name[]);
 453 extern int              deltype(int msgvec[]);
 454 extern char             *detract(register struct name *np, int ntype);
 455 extern int              docomma(char *s);
 456 extern int              dopipe(char str[]);
 457 extern int              dosh(char *str);
 458 extern int              echo(register char **argv);
 459 extern int              editor(int *msgvec);
 460 extern int              edstop(int noremove);
 461 extern struct name      *elide(struct name *names);
 462 extern int              elsecmd(void);
 463 extern int              endifcmd(void);
 464 extern int              execute(char linebuf[], int contxt);
 465 extern char             *expand(char *name);
 466 extern struct name      *extract(char line[], int arg_ntype);
 467 extern int              fferror(FILE *iob);
 468 extern int              field(char str[]);
 469 extern int              file(char **argv);
 470 extern struct grouphead *findgroup(char name[]);
 471 extern void             findmail(char *name);
 472 extern int              first(int f, int m);
 473 extern void             flush(void);
 474 extern int              folders(char **arglist);
 475 extern int              followup(int *msgvec);
 476 extern int              from(int *msgvec);
 477 extern off_t            fsize(FILE *iob);
 478 extern int              getfold(char *name);
 479 extern int      gethfield(register FILE *f, char linebuf[], register long rem);
 480 extern int      getaline(char *line, int size, FILE *f, int *hasnulls);
 481 extern int      getmessage(char *buf, int *vector, int flags);
 482 extern int      getmsglist(char *buf, int *vector, int flags);
 483 extern int      getname(uid_t uid, char namebuf[]);
 484 extern int      getrawlist(char line[], char **argv, int argc);
 485 extern void     getrecf(char *buf, char *recfile,
 486                     int useauthor, int sz_recfile);
 487 extern uid_t    getuserid(char name[]);
 488 extern int      grabh(register struct header *hp, int gflags, int subjtop);
 489 extern int      group(char **argv);
 490 extern void     hangup(int);
 491 extern int      hash(char name[]);
 492 extern char     *hcontents(char hfield[]);
 493 extern int      headerp(register char *line);
 494 extern int      headers(int *msgvec);
 495 extern int      headline_alloc(headline_t **);
 496 extern void     headline_free(headline_t *);
 497 extern void     headline_reset(headline_t *);
 498 extern int      help(void);
 499 extern char     *helppath(char *file);
 500 extern char     *hfield(char field[], struct message *mp,
 501                     char *(*add)(char *, char *));
 502 extern void     holdsigs(void);
 503 extern int      icequal(register char *s1, register char *s2);
 504 extern int      ifcmd(char **argv);
 505 extern int      igfield(char *list[]);
 506 extern int      inc(void);
 507 extern void     inithost(void);
 508 extern int      isdir(char name[]);
 509 extern boolean_t is_headline(const char *);
 510 extern int      ishfield(char linebuf[], char field[]);
 511 extern int      ishost(char *sys, char *rest);
 512 extern int      isign(char *field, int saving);
 513 extern void     istrcpy(char *dest, int dstsize, char *src);
 514 extern void     lcwrite(char *fn, FILE *fi, FILE *fo, int addnl);
 515 extern void     load(char *name);
 516 extern int      loadmsg(char str[]);
 517 extern int      lock(FILE *fp, char *mode, int blk);
 518 extern void     lockmail(void);
 519 extern int      mail(char **people);
 520 extern void     mail1(struct header *hp, int use_to, char *orig_to);
 521 extern void     mapf(register struct name *np, char *from);
 522 extern int      mboxit(int msgvec[]);
 523 extern void     mechk(struct name *names);
 524 extern int      member(register char *realfield,
 525                     register struct ignore **table);
 526 extern int      messize(int *msgvec);
 527 extern void     minit(void);
 528 extern int      more(int *msgvec);
 529 extern long     msend(struct message *mailp, FILE *obuf,
 530                     int flag, int (*fp)(const char *, FILE *));
 531 extern int      my_fclose(register FILE *iop);
 532 extern FILE     *my_fopen(char *file, char *mode);
 533 extern char     *nameof(register struct message *mp);
 534 extern char     *netmap(char name[], char from[]);
 535 extern int      newfileinfo(int start);
 536 extern int      next(int *msgvec);
 537 extern int      npclose(FILE *ptr);
 538 extern FILE     *npopen(char *cmd, char *mode);
 539 extern char     *nstrcpy(char *dst, int dstsize, char *src);
 540 extern char     *nstrcat(char *dst, int dstsize, char *src);
 541 extern int      null(char *e);
 542 extern int      outof(struct name *names, FILE *fo);
 543 extern struct name      *outpre(struct name *to);
 544 extern void     panic(char *str);
 545 extern int      parse_headline(const char *, headline_t *);
 546 extern int      pcmdlist(void);
 547 extern int      pdot(void);
 548 extern int      preserve(int *msgvec);
 549 extern void     printgroup(char name[]);
 550 extern void     printhead(int mesg);
 551 extern int      puthead(struct header *hp, FILE *fo, int w, long clen);
 552 extern int      pversion(char *e);
 553 extern void     quit(int noremove);
 554 extern int      readline(FILE *ibuf, char *linebuf);
 555 extern void     receipt(struct message *mp);
 556 extern void     relsesigs(void);
 557 extern int      removefile(char name[]);
 558 extern int      replyall(int *msgvec);
 559 extern int      replysender(int *msgvec);
 560 extern int      respond(int *msgvec);
 561 extern int      retfield(char *list[]);
 562 extern int      rexit(int e);
 563 extern char     *safeexpand(char name[]);
 564 extern void     *salloc(unsigned size);
 565 extern void     *srealloc(void *optr, unsigned size);
 566 extern int      samebody(register char *user, register char *addr,
 567                     int fuzzy);
 568 extern int      save(char str[]);
 569 extern void     savedead(int s);
 570 extern char     *savestr(char *str);
 571 extern int      schdir(char *str);
 572 extern int      screensize(void);
 573 extern int      scroll(char arg[]);
 574 extern int      sendm(char *str);
 575 extern int      set(char **arglist);
 576 extern void     setclen(register struct message *mp);
 577 extern int      setfile(char *name, int isedit);
 578 extern FILE     *setinput(register struct message *mp);
 579 extern void     setptr(register FILE *ibuf);
 580 extern int      shell(char *str);
 581 #ifndef sigchild
 582 extern void             sigchild(void);
 583 #endif
 584 #ifndef sigset
 585 extern void             (*sigset())();
 586 #endif
 587 extern char             *skin(char *name);
 588 extern char             *snarf(char linebuf[], int *flag, int erf);
 589 extern int              source(char name[]);
 590 extern char             *splice(char *addr, char *hdr);
 591 extern int              sput(char str[]);
 592 extern void             sreset(void);
 593 extern void             stop(int s);
 594 extern int              stouch(int msgvec[]);
 595 extern int              substr(char *string1, char *string2);
 596 extern int              swrite(char str[]);
 597 extern struct name      *tailof(struct name *name);
 598 extern void             tinit(void);
 599 extern int              tmail(void);
 600 extern int              top(int *msgvec);
 601 extern void             touch(int mesg);
 602 extern struct name      *translate(struct name *np);
 603 extern int              type(int *msgvec);
 604 extern int              undelete(int *msgvec);
 605 extern int              ungroup(char **argv);
 606 extern int              unigfield(char *list[]);
 607 extern void             unlockmail(void);
 608 extern char             **unpack(struct name *np);
 609 extern int              unread(int msgvec[]);
 610 extern int              unretfield(char *list[]);
 611 extern int              unset(char **arglist);
 612 extern int              unstack(void);
 613 extern char             *unuucp(char *name);
 614 extern struct name      *usermap(struct name *names);
 615 extern char             *value(char name[]);
 616 extern char             *vcopy(char str[]);
 617 extern void             vfree(register char *cp);
 618 extern int              visual(int *msgvec);
 619 extern char             *yankword(char *name, char *word, int sz, int comma);
 620
 621 /*
 622  * These functions are defined in libmail.a
 623  */
 624 #ifdef  __cplusplus
 625 extern "C" {
 626 #endif
 627 extern int              delempty(mode_t, char *);
 628 extern char             *maildomain(void);
 629 extern void             touchlock(void);
 630 extern char             *xgetenv(char *);
 631 extern int              xsetenv(char *);
 632 #ifdef  __cplusplus
 633 }
 634 #endif
 635
 636 /*
 637  * Standard functions from the C library.
 638  * These are all defined in <stdlib.h> and <wait.h> in SVr4.
 639  */
 640 #ifdef preSVr4
 641 extern long             atol();
 642 extern char             *getcwd();
 643 extern char             *calloc();
 644 extern char             *getenv();
 645 extern void             exit();
 646 extern void             free();
 647 extern char             *malloc();
 648 extern time_t           time();
 649 extern long             ulimit();
 650 extern int              utime();
 651 extern int              wait();
 652 extern int              fputs();
 653 #endif
 654
 655 #ifdef  __cplusplus
 656 }
 657 #endif
 658
 659 #endif  /* _MAILX_DEF_H */