Usenet 1994 October/usenetsourcesnewsgroupsinfomagicoctober1994disk2.iso/misc/volume10/pcmail2/part07

Text File | 1990-01-24 | 61KB | 2,341 lines

Newsgroups: comp.sources.misc
subject: v10i039: PC-MAIL release 2, 7/11
from: [e-mail] (Wietse Venema)
Sender: [e-mail] (Brandon S. Allbery - comp.sources.misc)

Posting-number: Volume 10, Issue 39
Submitted-by: [e-mail] (Wietse Venema)
Archive-name: pcmail2/part07

#! /bin/sh
# This is a shell archive.  Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file".  To overwrite existing
# files, type "sh file -c".  You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g..  If this archive is complete, you
# will see the following message at the end:
#        "End of archive 7 (of 11)."
# Contents:  main/deskutil.c main/errdisp.c main/file.c main/kphys.c
#   main/makefile.msc main/makefile.unx main/xpres.c
# Wrapped by wswietse@tuewsa on Mon Jan 22 17:27:19 1990
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f main/deskutil.c -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"main/deskutil.c\"
else
echo shar: Extracting \"main/deskutil.c\" \(7193 characters\)
sed "s/^X//" >main/deskutil.c <<'END_OF_main/deskutil.c'
X/*++
X/* NAME
X/*    deskutil 3
X/* SUMMARY
X/*    utility functions
X/* PROJECT
X/*    pc-mail
X/* PACKAGE
X/*    mail
X/* SYNOPSIS
X/*    #include "mail.h"
X/*
X/*    void patience()
X/*
X/*    int when()
X/*
X/*    int delete()
X/*
X/*    int unspool()
X/*
X/*    int print()
X/*
X/*    int save()
X/*
X/*    int filter()
X/*
X/*    char *tstamp(ltime)
X/*    long *ltime()
X/* DESCRIPTION
X/*    tstamp() converts absolute time to a string. If called with a
X/*    recent time argument (less than 100 days ago) the string will
X/*    be of the form "Sun Apr 17 12:50", otherwise "Sun Apr 17  1988".
X/*
X/*      delete() gives the user another chance before a message is deleted.
X/*
X/*      unspool() actually deletes a message. As a side effect it destroys
X/*      the current mail box display so that the next display will
X/*    reflect the actual status of the spool directory.
X/*    The affected message and meta file names are taken from the
X/*    global "message" and "commant" string variables.
X/*
X/*    print() copies a pager file to the printer.
X/*
X/*    save() asks where the pager file should be saved.
X/*
X/*    filter() asks the command through which the file being shown should be
X/*    piped. The original file is used.
X/*
X/*    when() should be called after the user has entered a mail destination
X/*    address. It informs the user that messages are not sent right away,
X/*    but after selection of the Network option in the main menu. This
X/*    function is a no-op on systems that use daemons for message transport.
X/*
X/*    patience() prints a 'one moment please' message in the middle
X/*    screen window. As a side effect, the current pager file is set
X/*    to none.
X/* FILES
X/*      mail header files in the spool directory
X/* SEE ALSO
X/*      pager(3), pager(5), kbdinp(3)
X/* AUTHOR(S)
X/*      W.Z. Venema
X/*      Eindhoven University of Technology
X/*      Department of Mathematics and Computer Science
X/*      Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
X/* CREATION DATE
X/*    Tue May 12 15:35:20 GMT+1:00 1987
X/* LAST MODIFICATION
X/*    90/01/22 13:01:32
X/* VERSION/RELEASE
X/*    2.1
X/*--*/
X
X#include <stdio.h>
X#include <errno.h>
X#include <time.h>
X
X#include "defs.h"
X#include "pager.h"
X#include "mail.h"
X#include "screen.h"
X#include "status.h"
X
Xextern struct tm *localtime();        /* std C library */
X
Xhidden int save_util();
Xhidden int pipe_util();
X
X/* patience - say this will take some time */
X
Xpublic void patience()
X{
X    static char *m_wait[] = {
X    "",
X    "One moment please...",
X    0,
X    };
X
X    register File *pp = open_pager();        /* create pager file */
X
X    mesg_pager(pp,m_wait);            /* write pager file */
X    ds_pager();                    /* show on middle window */
X    close_pager(pp);                /* forget pager file */
X}
X
X/* delete - user wants to delete a message; ask for confirmation */
X
Xpublic int delete()
X{
X    static Screen screen[] = {
X    ESCCR,    "Enter",    unspool,int_error,
X    0,    0,        0,
X    "Press ESC to cancel. Confirm with ENTER",
X    };
X
X    return(kbdinp(screen)|S_REDRAW);
X}
X
X/* unspool - actually delete a message; force mail box display rebuild */
X
Xpublic int unspool()
X{
X    if (((chmod(message,0666) || unlink(message)) && errno != ENOENT)
X    || ((chmod(comment,0666) || unlink(comment)) && errno != ENOENT)) {
X    errdisp(E_UNLINK);            /* notify user of problem */
X    return(S_REDRAW);            /* say screen has changed */
X    } else {
X    junk_desk();                /* say mail box has changed */
X    return(S_BREAK);            /* no more work to do */
X    }
X}
X
X/* print - print pager display on default printer */
X
Xpublic int print()
X{
X    return(pr_pager() ? (errdisp(E_PRINTERR),S_REDRAW) : 0);
X}
X
X/* save - ask where pager display should be copied to */
X
Xpublic int save()
X{
X    static Screen screen[] = {
X    STRING,    0,              save_util,int_error,
X    0,    0,              0,
X    "Press ESC to cancel. Save to file:",
X    };
X
X    kbdinp(screen);            /* prompt for file name, then copy */
X    return(S_REDRAW);            /* force screen repaint */
X}
X
X/* save_util - copy pager file to ordinary file */
X
Xhidden int save_util(to)
Xchar *to;
X{
X    if (cp_pager(to)) {            /* if file copy failed */
X    unlink(to);            /* remove that file */
X    errdisp(E_WRITERR);        /* notify the user */
X    return(S_BREAK|S_REDRAW);    /* redisplay, terminate caller */
X    } else {
X    junk_file();            /* say file display maybe outdated */
X    return(S_BREAK);        /* terminate caller */
X    }
X}
X
X/* filter - ask command through which the pager display should be piped */
X
Xpublic int filter()
X{
X    static Screen screen[] = {
X    STRING,    0,              pipe_util,int_error,
X    0,    0,              0,
X    "Press ESC to cancel. Filter through command:",
X    };
X
X    kbdinp(screen);            /* prompt for file name, then copy */
X    return(S_REDRAW);            /* force screen repaint */
X}
X
X/* redirect - make old refer to new, close redundant file descriptors */
X
Xhidden int redirect(old, new)
Xint     old;
Xint     new;
X{
X    register int ret;
X
X    (void) close(old);
X    ret = dup(new);
X    (void) close(new);
X    return (ret != old);
X}
X
X/* pipe_util - pipe external file through command */
X
Xhidden int pipe_util(cmd)
Xchar   *cmd;
X{
X    register int fd_stdin;
X    register int fd_msg;
X
X    /*
X     * Run command with standard input redirected to the file displayed, and
X     * clean up. Note that the original file is used, not the contents of the
X     * pager. We use system(3), so that the command can be a pipeline. This
X     * code is a bit messy, since it has to run both with UNIX and MS-DOS.
X     */
X
X    if ((fd_msg = open(message, 0)) < 0) {
X    errdisp(E_READERR);
X    } else {
X    kbdrest();                /* cooked-mode input */
X    if ((fd_stdin = dup(0)) < 0) {        /* save standard input */
X        kbdinit();                /* raw-mode input */
X        errdisp(E_SYSFAIL);
X    } else {
X        (void) putchar('\n');
X        if (redirect(0, fd_msg))        /* re-direct standard input */
X        fatal("cannot re-direct standard input");
X        (void) system(cmd);            /* try to execute command */
X        if (redirect(0, fd_stdin))        /* restore standard input */
X        fatal("cannot restore standard input");
X        kbdinit();                /* raw-mode input */
X        (void) printf(anykey);
X        (void) getkey();
X        junk_file();            /* file display outdated */
X    }
X    }
X    return (S_BREAK | S_REDRAW);        /* terminate caller */
X}
X
X/* when - say when mail will actually be sent */
X
Xpublic int when()
X{
X#ifndef    DAEMON
X    static char *msg[] = {
X    "",
X    "To send messages through the network, use the Network",
X    "option in the main menu.",
X    0,
X    };
X    File *pp = open_pager();            /* open new pager file */
X
X    mesg_pager(pp,msg);                /* fill pager file */
X    ds_pager();                    /* display the file */
X    close_pager(pp);                /* forget pager file */
X#endif
X    return(0);                    /* don't care value */
X}
X
X/* tstamp - time format as produced by the ls(1) command */
X
Xpublic char *tstamp(ltime)
Xlong   *ltime;
X{
X    static char buf[25];
X
X    /*
X     * Output from asctime() is of the form
X     *
X     * "Sun Apr 17 13:34:35 1988\n"
X     *
X     * Depending on how recent the time in question is, we supress the time or
X     * year field. The weekday field is always suppressed.
X     */
X
X    (void) strcpy(buf, asctime(localtime(ltime)));
X    if (time((long *) 0) - *ltime > 60L * 60L * 24L * 100L) {
X    buf[24] = '\0';                /* remove the \n */
X    (void) strcpy(buf + 11, buf + 19);    /* old, show year */
X    } else
X    buf[16] = '\0';                /* recent, show time */
X    return (buf + 4);
X}
END_OF_main/deskutil.c
if test 7193 -ne `wc -c <main/deskutil.c`; then
    echo shar: \"main/deskutil.c\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f main/errdisp.c -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"main/errdisp.c\"
else
echo shar: Extracting \"main/errdisp.c\" \(8055 characters\)
sed "s/^X//" >main/errdisp.c <<'END_OF_main/errdisp.c'
X/*++
X/* NAME
X/*      errdisp 3
X/* SUMMARY
X/*      produce an error message display
X/* PROJECT
X/*      pc-mail
X/* PACKAGE
X/*      mail
X/* SYNOPSIS
X/*      int errdisp(errcode);
X/*      int errcode;
X/* DESCRIPTION
X/*      errdisp() produces an error display in the middle screen
X/*      window. The error code must be one defined in status.h.
X/*    Otherwise, an "unknown error" message is displayed.
X/*    errdisp() gives the user a chance to read it, before resuming
X/*      the program. errdisp() returns its argument, or the
X/*    value E_UNKNOWN if an unknown error code was specified.
X/* FUNCTIONS AND MACROS
X/*      kbdinp(), open_pager(), app_pager(), ds_pager(), close_pager()
X/* BUGS
X/*      Cannot force the user to really stop. It just recommends
X/*      to do so.
X/* AUTHOR(S)
X/*      W.Z. Venema
X/*      Eindhoven University of Technology
X/*      Department of Mathematics and Computer Science
X/*      Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
X/* CREATION DATE
X/*      Thu Apr  9 21:19:05 GMT+1:00 1987
X/* LAST MODIFICATION
X/*    90/01/22 13:01:36
X/* VERSION/RELEASE
X/*    2.1
X/*--*/
X
X#include "defs.h"
X#include "screen.h"
X#include "pager.h"
X#include "status.h"
X#include "window.h"
X
X/* forward declarations */
X
Xhidden int ds_error();
X
X/* A list of error mesages */
X
X/* when the spool directory is not found */
X
Xhidden char *e_nospool[] = {
X    "",
X    "The mail program cannot access essential data files.",
X    "",
X    "Please check whether the spool directory is present",
X    "and whether the environment variable MAILDIR has been",
X    "set correctly.",
X    0,
X};
X
X/* when we cannot open as many files as we need */
X
Xhidden char *e_fileno[] = {
X    "",
X#ifdef  MSDOS
X    "Check your CONFIG.SYS file. It should have a line",
X    "stating (for example)",
X    "    FILES = 20 .",
X    "While you're at it, also make sure that file also",
X    "has a line (for example)",
X    "    DEVICE = ANSI.SYS .",
X    "If your system does not have such a file create",
X    "one with an editor and place the file in the root",
X    "directory.",
X    "Reboot after making the changes and try again.",
X#endif
X#ifdef  unix
X    "Your UNIX is crippled (not enough file descriptors",
X    "per process). Rebuild the system or buy a better one.",
X#endif
X    0,
X};
X
X/* when a program is not found */
X
Xhidden char *e_noprog[] = {
X    "",
X    "The mail program cannot execute an essential program file.",
X    "",
X    "Please make sure that the environment variable PATH has",
X    "been set to include the directories with the SMAIL, NMAIL,",
X#ifdef    DAEMON
X    "and EDITOR programs.",
X#else
X    "CICO and EDITOR programs.",
X#endif
X    "Also, make sure that the environment variable EDITOR has",
X    "been set to the editor of your preference, and that the",
X    "machine has enough free memory",
X    0,
X};
X
X/* when a read error ocurred, or a file could not be opened */
X
Xhidden char *e_readerr[] = {
X    "",
X    "The mail program cannot read a data file.",
X    "",
X    "Please check your disk. This may be a serious problem.",
X    0,
X};
X
X/* when a write error occurred */
X
Xhidden char *e_writerr[] = {
X    "",
X    "The mail program cannot write a data file.",
X    "",
X    "Please make sure that the disk is not write protected",
X    "and that there is sufficient free space.",
X    0,
X};
X
X/* when the program is confused */
X
Xhidden char *e_confused[] = {
X    "",
X    "The mail program has detected a serious internal problem.",
X    "",
X    "You are requested to leave the mail system as it is and",
X    "call an expert.",
X    0,
X};
X
X/* an unknown error (perhaps the editor returned a nonzero status) */
X
Xhidden char *e_unknown[] = {
X    "",
X    "The mail program has detected a unknown error. This may",
X    "not be a serious problem.",
X    0,
X};
X
X/* when the UNIX host does not ask for login/password */
X
Xhidden char *e_noline[] = {
X    "",
X    "The mail program is not able to exchange mail with the",
X    "network.",
X    "",
X    "Please check the password, or try again later.",
X    0,
X};
X
X/* when the UNIX host does not send initial protocol messages */
X
Xhidden char *e_noresp[] = {
X    "",
X    "The mail program is not able to exchange mail with the",
X    "network. Probably the password was incorrect.",
X    0,
X};
X
X/* when the UNIX host does not want to talk to us */
X
Xhidden char *e_reject[] = {
X    "",
X    "The mail program is not able to exchange mail with the",
X    "network. Please contact the system administrator who is",
X    "responsible for the nearest UNIX system.",
X    0,
X};
X
X/* when the link is lost (timeout,...) */
X
Xhidden char *e_lost[] = {
X    "",
X    "The mail program has lost contact with the network.",
X    "",
X    "We suggest that you try again at a later time.",
X    0,
X};
X
X/* the resources are exhausted */
X
Xhidden char *e_sysfail[] = {
X    "",
X    "The mail program cannot proceed due to the fact",
X    "that the computer system is overloaded.",
X    "",
X    "Consult your local systems manager.",
X    0,
X};
X
X/* bad setup parameter */
X
Xhidden char *e_badsetup[] = {
X    "",
X    "The mail program cannot communicate with the network",
X    "due to missing or invalid data in the setup.",
X    "",
X    "Check the Setup command in the main menu.",
X    0,
X};
X
X/* when a file could not be removed */
X
Xhidden char *e_unlink[] = {
X    "",
X    "The mail program cannot remove a data file.",
X    "",
X    "Please make sure that your disk is not write protected",
X    0,
X};
X
X/* when a file could not be printed */
X
Xhidden char *e_printerr[] = {
X    "",
X    "The mail programm cannot write to the printer",
X    "",
X    "Please check your default printer device",
X    0,
X};
X
Xhidden char *e_nouser[] = {
X    "",
X    "An unknown local user name was specified",
X    "",
X    "Please check the list of user names",
X    0,
X};
X
Xhidden char *e_ovalias[] = {
X    "",
X    "There probably is an error in your alias data base,",
X    "such that an alias is defined in terms of itself.",
X    "",
X    "Please check your alias data base, and then try to",
X    "send this message again.",
X    0,
X};
X
Xhidden char *e_toolong[] = {
X    "",
X    "The list of recipients is too long.",
X    "",
X    "There is no easy solution to this problem; you might",
X    "ask your UNIX system administrator to set up a mailing",
X    "list, and use the name of that mailing list instead.",
X    0,
X};
X
X/* The folowing data structure links an error code to an error message */
X
Xtypedef struct {
X    short code;                /* error return value */
X    char **msg;                /* associated message */
X} msgmap;
X
Xhidden msgmap errmap[] = {        /* lookup table for error codes */
X    E_UNKNOWN,    e_unknown,        /* don't remove this one! */
X    E_SYSFAIL,    e_sysfail,
X    E_NOPROG,    e_noprog,        /* and error messages */
X    E_NOSPOOL,    e_nospool,
X    E_READERR,    e_readerr,
X    E_WRITERR,    e_writerr,
X    E_CONFUSED,    e_confused,
X    E_FILENO,    e_fileno,
X    E_NOLINE,    e_noline,
X    E_NORESP,    e_noresp,
X    E_REJECT,    e_reject,
X    E_LOST,    e_lost,
X    E_BADSETUP,    e_badsetup,
X    E_UNLINK,    e_unlink,
X    E_PRINTERR,    e_printerr,
X    E_NOUSER,    e_nouser,
X    E_OVALIAS,    e_ovalias,
X    E_TOOLONG,    e_toolong,
X    0,        0,            /* terminator */
X};
X
X/* errdisp - set up error pager file, return error code */
X
Xpublic int errdisp(code)
Xint code;
X{
X    static Screen screen[] = {
X    ENTER,    "Enter",        0,      "Resume the mail program",
X    0,    0,              ds_error,"Press ENTER to continue",
X    };
X    register msgmap *mp;
X
X    /* linear table search; this code is not used heavily */
X
X    for (mp = errmap; mp->code && mp->code != code; mp++)
X    /* void */ ;                /* look it up in table */
X    if (mp->code == 0) {
X    return(errdisp(E_UNKNOWN));        /* unknown error code */
X    } else {
X    File *pp = open_pager();        /* open pager file */
X    mesg_pager(pp,mp->msg);            /* copy to pager file */
X    beep();                    /* red alert! red alert! */
X    kbdinp(screen);                /* give a chance to read it */
X    close_pager(pp);            /* forget screen display */
X    return(code);                /* return error code */
X    }
X}
X
X/* ds_error - display error window */
X
Xhidden int ds_error()
X{
X    ds_pager();                    /* use "current" pager file */
X    return(0);                    /* say screen up-to-date */
X}
END_OF_main/errdisp.c
if test 8055 -ne `wc -c <main/errdisp.c`; then
    echo shar: \"main/errdisp.c\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f main/file.c -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"main/file.c\"
else
echo shar: Extracting \"main/file.c\" \(7309 characters\)
sed "s/^X//" >main/file.c <<'END_OF_main/file.c'
X/*++
X/* NAME
X/*      file 3
X/* SUMMARY
X/*      manipulate ordinary files
X/* PROJECT
X/*      pc-mail
X/* PACKAGE
X/*      mail
X/* SYNOPSIS
X/*      int file()
X/*
X/*    int junk_file()
X/* DESCRIPTION
X/*      file() is called when the user selected the "file" option
X/*    in the main menu. The pager displays a directory listing on the
X/*      screen. The user may then walk through the file display and
X/*    select a file or directory.
X/*
X/*    In case a regular file is selected the user may specify
X/*    an action (send file as mail, delete file, display
X/*    file, print file, copy file to workfile for subsequent
X/*    editing etc.).
X/*
X/*    junk_file() should be invoked when the file display is no longer
X/*    valid.
X/* FILES
X/*      By selecting directory files the user can walk through the whole
X/*      file system.
X/* SEE ALSO
X/*      kbdinp(3), pager(3)
X/* BUGS
X/*    MS-DOS has no "." or ".." entries in the root directory, and
X/*    subdirectories of an MS-DOS root directory have no ".." entry.
X/*
X/*    Changing the current directory may cause problems if
X/*    environment variables are defined in terms of relative path names.
X/*
X/*    There is no provision to change the "default drive" on systems
X/*    that use such abominations.
X/* AUTHOR(S)
X/*      W.Z. Venema
X/*      Eindhoven University of Technology
X/*      Department of Mathematics and Computer Science
X/*      Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
X/* CREATION DATE
X/*      Sun Apr  5 17:18:06 GMT+1:00 1987
X/* LAST MODIFICATION
X/*    90/01/22 13:01:37
X/* VERSION/RELEASE
X/*    2.1
X/*--*/
X
X#include <stdio.h>
X#include <time.h>
X#include <sys/types.h>
X#include <sys/stat.h>
X#include <ctype.h>
X
X#include "defs.h"
X#include "screen.h"
X#include "pager.h"
X#include "mail.h"
X#include "ndir.h"
X#include "path.h"
X#include "status.h"
X#include "window.h"
X
Xextern struct tm *localtime();        /* std C library */
X
Xhidden File *bldlist();            /* forward declaration */
Xhidden int show_list();
Xhidden int pick_file();
Xhidden int delfile();
Xhidden int show_file();
Xhidden int rmfile();
X
Xhidden File *dfile = 0;            /* file listing */
Xhidden File *dirfile = 0;        /* directory listing */
Xhidden char file_prompt[BUFSIZ];    /* prompt with directory name */
Xhidden char file_dir[BUFSIZ];        /* prompt with directory name */
Xhidden char prompt_fmt[] = "To display a file, select it with \
Xthe cursor keys, then press ENTER\n(showing directory: \"%s\")";
X
X/* file - called from keyboard interpreter, call keyboard driver */
X
Xpublic int file()
X{
X    char *getcwd();
X    char  thisdir[BUFSIZ];
X
X    static Screen screen[] = {
X    'C',    "Close",0,    prevscreen,
X    'P',    "Print",print,    "Print file listing",
X    'S',    "Save",    save,    "Save file listing to ordinary file",
X    PGUP,    PgUp,    pu_pager,pageup,
X    PGDN,    PgDn,    pd_pager,pagedn,
X    UP,    "Up",    up_pager,csrup,
X    DOWN,    "Down",    dn_pager,csrdn,
X    ENTER,    "Enter",pick_file,"Display file at cursor",
X    0,    0,    show_list,
X    file_prompt,
X    };
X
X    (void) getcwd(thisdir, sizeof(thisdir));    /* save current directory */
X    sprintf(file_prompt, prompt_fmt, thisdir);    /* put cwd in prompt */
X    kbdinp(screen);                /* set up dialogue */
X    close_pager(dirfile);            /* deallocate pager file */
X    dirfile = 0;                /* say it's gone */
X    (void) chdir(thisdir);            /* restore current directory */
X    return (S_REDRAW);                /* force screen update */
X}
X
X/* show_list - create or refresh file listing */
X
Xhidden int show_list()
X{
X    if (dirfile == 0) {                /* no pager file? */
X    dirfile = bldlist();            /* create one */
X    } else {
X    set_pager(dirfile);            /* select existing pager file */
X    }
X    ds_pager();                    /* display the thing */
X    return (0);                    /* say screen is up-to-date */
X}
X
X/* bldlist - build file listing display */
X
Xhidden File *bldlist()
X{
X    register File *pp;
X    register DIR *dp;
X    register struct direct *de;
X    struct stat s;
X
X    patience();
X
X    if ((dp = opendir(THISDIR)) == 0) {
X    fatal("insufficient memory for operation");
X    /* NOTREACHED */
X    } else {
X    pp = open_pager();            /* allocate pager file */
X
X    while (de = readdir(dp)) {        /* read next file name */
X        if (stat(de->d_name, &s) == 0) {    /* get file info */
X        if ((s.st_mode & S_IFMT) == S_IFDIR)
X            app_pager(pp, strcons("%-20s %9s %s", de->d_name,
X                      "<dir>", tstamp(&s.st_mtime)));
X        else
X            app_pager(pp, strcons("%-20s %9ld %s", de->d_name,
X                      s.st_size, tstamp(&s.st_mtime)));
X        }
X    }
X    sort_pager(pp, FORW_SORT);        /* sort by file name */
X
X    (void) getcwd(file_dir, sizeof(file_dir));
X    sprintf(file_prompt, prompt_fmt, file_dir);    /* put cwd in prompt */
X
X    closedir(dp);                /* directory search done */
X    return (pp);                /* current pager file */
X    }
X}
X/* pick_file - display selected file or change directory */
X
Xhidden int pick_file()
X{
X    static char botline[80];
X    static Screen screen[] = {
X    'C',    "Close",0,        "Return to file listing",
X    'D',    "Delete",delfile,    "Delete this file",
X    'M',    "Mail",    mailfile,    "Mail a copy of this file",
X    'P',    "Print",print,        "Print this file",
X    'S',    "Save",    save,        "Save a copy to an ordinary file",
X    'W',    "Work",    makework,    "Save a copy to a work file",
X    '|',    "|",    filter,        "Filter file through command",
X    PGUP,    PgUp,    pu_pager,    pageup,
X    PGDN,    PgDn,    pd_pager,    pagedn,
X    UP,    "Up",    up_pager,    csrup,
X    DOWN,    "Down",    dn_pager,    csrdn,
X    0,    0,    show_file,
X    botline,
X    };
X    struct stat s;
X
X    if (!sscanf(gets_pager(), "%s", message)) {    /* cannot read name */
X    beep();                    /* "notify" user */
X    return (0);                /* nothing happened */
X    } else if (access(message, 04)
X    || stat(message, &s)) {            /* cannot read file */
X    beep();                    /* "notify" user */
X    return (0);                /* nothing happened */
X    } else if ((s.st_mode & S_IFMT) == S_IFDIR) {    /* directory file */
X    chdir(message);                /* change directory */
X    close_pager(dirfile);            /* purge display */
X    dirfile = bldlist();            /* new file display */
X    return (S_REDRAW);            /* update display */
X    } else {                    /* ordinary file */
X    sprintf(botline, "(Reading file \"%s\")", message);
X    kbdinp(screen);                /* look at screen */
X    close_pager(dfile);            /* and forget it */
X    dfile = 0;                /* say it's gone */
X    return (S_REDRAW);            /* force redrawing */
X    }
X}
X
X/* show_file - create or refresh display of selected file */
X
Xhidden int show_file()
X{
X    if (dfile) {
X    set_pager(dfile);            /* select dispay */
X    } else {
X    if (rd_pager(dfile = open_pager(),
X             message))            /* try to read file */
X        mesg_pager(dfile, m_msgread);    /* read error */
X    }
X    ds_pager();                    /* rewrite screen */
X    return (0);                    /* screen up-to-date */
X}
X
X/* delfile - ask confirmation before removing a file */
X
Xhidden int delfile()
X{
X    static Screen screen[] = {
X    ESCCR, 0, rmfile, int_error,
X    0, 0, 0,
X    "Press ESC to cancel. Confirm with ENTER",
X    };
X
X    return (kbdinp(screen) | S_REDRAW);        /* "are you sure?" */
X}
X
X/* rmfile - actually remove file */
X
Xhidden int rmfile()
X{
X    if (unlink(message)) {            /* try to remove file */
X    errdisp(E_UNLINK);            /* notify the user */
X    return (S_BREAK | S_REDRAW);        /* redisplay, stop caller */
X    } else {
X    junk_file();                /* say file display outdated */
X    return (S_BREAK);            /* terminate caller */
X    }
X}
X
X/* junk_file - directory listing is no longer up to date */
X
Xpublic int junk_file()
X{
X    if (dirfile) {
X    close_pager(dirfile);            /* close pager file */
X    dirfile = 0;                /* say it is gone */
X    }
X    return (0);                    /* in case we need that */
X}
END_OF_main/file.c
if test 7309 -ne `wc -c <main/file.c`; then
    echo shar: \"main/file.c\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f main/kphys.c -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"main/kphys.c\"
else
echo shar: Extracting \"main/kphys.c\" \(7513 characters\)
sed "s/^X//" >main/kphys.c <<'END_OF_main/kphys.c'
X/*++
X/* NAME
X/*      kphys 3
X/* SUMMARY
X/*      k protocol packet exchange
X/* PACKAGE
X/*      uucp across the TUEnet
X/* SYNOPSIS
X/*      #include "kp.h"
X/*
X/*      kspack(fd,type,num,size,data)
X/*      int fd, num, size;
X/*      char type, data[MAXPACKSIZ];
X/*
X/*      krpack(fd,num,size,data)
X/*      int fd, *num, *size;
X/*      char data[MAXPACKSIZ];
X/* DESCRIPTION
X/*      The functions in this file take care of data framing and verification.
X/*
X/*      Kspack() sends a packet of the specified type and number,
X/*      and with len data bytes.
X/*
X/*      Krpack() tries to receive a packet and returns: the packet type plus
X/*      size and data, or TIME (no packet) or FAIL (bad checksum).
X/*
X/*      The data format has been derived from kermit implementations:
X/*
X/* .nf
X/* .in +5
X/*      SOH     packet header, ASCII control-P
X/*      len     (size of data, low 6 bits) + 32
X/*      len     (size of data, high 6 bits) + 32
X/*      num     (packet number mod 64) + 32
X/*      type    packet type
X/*      check   one-byte type-1 kermit checksum
X/*
X/*      The header is followed by checksummed data if len >0:
X/*
X/* .nf
X/* .in +5
X/*      data    len data bytes
X/*      check1  (upper 2 bits of type-3 kermit 16-bit checksum) + 32
X/*      check2  (middle 6 bits of type-3 kermit 16-bit checksum) + 32
X/*      check3  (lower 6 bits of type-3 kermit 16-bit checksum) + 32
X/*
X/*      Every packet is followed by an ASCII carriage return, which is
X/*      ignored upon reception of a packet. It prevents timeout errors
X/*      when one byte gets lost (the most common case).
X/* BUGS
X/*      It is yet another convention for data framing.
X/* AUTHOR(S)
X/*      Wietse Venema
X/*      Eindhoven University of Technology
X/*      Department of Mathematics and Computer Science
X/*      Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
X/* CREATION DATE
X/*      Mon Feb  3 13:38:14 MET 1986
X/* LAST MODIFICATION
X/*    90/01/22 13:01:56
X/* VERSION/RELEASE
X/*    2.1
X/*--*/
X
X#include <signal.h>
X#include <setjmp.h>
X#include "kp.h"
X
X#define READS(fd,ch)    {if (read(fd,&ch,1) < 0) clkint(); if ((ch &= 0177) == SOH) goto SYNC;}
X
Xjmp_buf env;                /* Environment ptr for timeout longjump */
X
Xclkint()                                /* Timer interrupt handler */
X{
X    longjmp(env,TRUE);                  /* Tell krpack to give up */
X}
X
Xkspack(fd,type,num,len,data)
Xint fd;
Xchar type, *data;
Xint num, len;
X{
X    char chksum, header[6], chk[3];     /* Checksums, header */
X
X    DEBUG(7,"xmt: type %c\n",type);
X    if (len > 0)
X    DEBUG(7,"xmt: data %d\n",len);
X
X    header[0] = SOH;                    /* Packet marker (SOH) */
X    header[1] = tosix(len);             /* Send the character count */
X    chksum    = header[1];              /* Initialize the checksum */
X    header[2] = tosix(len>>OUT);        /* Send the character count */
X    chksum   += header[2];              /* Update checksum */
X    header[3] = tochar(num);            /* Packet number */
X    chksum   += header[3];              /* Update checksum */
X    header[4] = type;                   /* Packet type */
X    chksum   += header[4];              /* Update checksum */
X    chksum    = (((chksum&0300) >> 6)+chksum)&077; /* Compute header checksum */
X    header[5] = tochar(chksum);         /* Put it in the packet */
X    write(fd,header,6);                /* Send the header */
X
X    if (len > 0) {                      /* Make data packet */
X    write(fd,data,len);           /* Send data */
X    chk3(data,len,chk);           /* Compute 16-bit checksum */
X    write(fd,chk,3);              /* Send checksum */
X    }
X    write(fd,"\r",1);                   /* Extra-packet line terminator */
X}
X
Xkrpack(fd,num,len,data)
Xint fd;
Xint *num;                               /* Packet number */
Xint *len;                               /* Packet length */
Xchar *data;                             /* Packet data */
X{
X    int i;                              /* Data character number, loop exit */
X    char t,                             /* Current input character */
X    type,                           /* Packet type */
X    rchk[3],                        /* Data checksum from host */
X    cchk[3],                        /* Data checksum computed here */
X    cchksum,                        /* Our (computed) checksum */
X    rchksum;                        /* Header checksum from other host */
X
X    if (setjmp(env)) {
X    DEBUG(7,"rcv: timed out\n","");
X    return TIME;                    /* Timed out */
X    }
X    signal(SIGALRM,clkint);             /* Setup the timeout */
X    alarm(TIMEOUT);
X
X    for (;;)                            /* Wait for packet header */
X    READS(fd,t);
XSYNC:                                   /* Got SOH */
X    alarm(TIMEOUT);
X    DEBUG(7,"rcv: found sync\n","");
X    READS(fd,t);                        /* Get character */
X    cchksum = t;                        /* Start the checksum */
X    *len = unchar(t);                   /* Character count, low six bits */
X
X    READS(fd,t);                        /* Get character */
X    cchksum += t;                       /* Update checksum */
X    *len += (unchar(t)<<OUT);           /* Character count, high six bits */
X
X    READS(fd,t);                        /* Get character */
X    cchksum += t;                       /* Update checksum */
X    *num = unchar(t);                   /* Packet number */
X
X    READS(fd,t);                        /* Get character */
X    cchksum += t;                       /* Update checksum */
X    type = t;                           /* Packet type */
X
X    READS(fd,t);                        /* Get header checksum */
X    rchksum = unchar(t);                /* Convert to numeric */
X    /* Fold in bits 7,8 to compute */
X    cchksum = (((cchksum&0300) >> 6)+cchksum)&077; /* header checksum */
X
X    if (cchksum != rchksum) {
X    DEBUG(7,"rcv: bad header\n","");
X    alarm(0);                       /* Disable the timer interrupt */
X    return FAIL;
X    }
X    DEBUG(7,"rcv: type %c\n",type);
X
X    if ((*len > 0) && (data != NULLP))
X    {
X    for (i=0; i<*len; i++)          /* The data itself, if any */
X    {                               /* Loop for character count */
X        READS(fd,t);                /* Get character */
X        data[i] = t;                /* Keep data */
X    }
X
X    for (i=0; i<3; i++)             /* 16-bit CRC checksum */
X    {
X        READS(fd,t);                /* Get character */
X        rchk[i] = t;                /* Keep data */
X    }
X
X    chk3(data,*len,cchk);           /* Compute CRC */
X    if (strncmp(rchk,cchk,3)) {     /* Check with received CRC */
X        DEBUG(7,"rcv: bad data\n","");
X        alarm(0);                   /* Disable the timer interrupt */
X        return FAIL;
X    }
X    DEBUG(7,"rcv: data %d\n",*len);
X    }
X    alarm(0);                /* Disable the timer interrupt */
X    return(type);                       /* All OK, return packet type */
X}
X
X/*  C H K 3  --  Compute a type-3 Kermit block check.  */
X/*
XCalculate the 16-bit CRC of a string using a byte-oriented
Xtableless algorithm invented by Andy Lowry (Columbia University).  The
Xmagic number 010201 is derived from the CRC-CCITT polynomial x^16+x^12+x^5+1.
X*/
Xstatic chk3(s,len,chk)
Xchar *s, *chk;
Xint len;
X{
X    unsigned int c, q;
X    long crc = 0;
X
X    while (len--) {
X    c = *s++;
X    q = (crc ^ c) & 017;            /* Low-order nibble */
X    crc = (crc >> 4) ^ (q * 010201);
X    q = (crc ^ (c >> 4)) & 017;     /* High order nibble */
X    crc = (crc >> 4) ^ (q * 010201);
X    }
X    *chk++ = tochar(((unsigned)(crc & 0170000)) >> 12);
X    *chk++ = tochar((crc & 07700) >> 6);
X    *chk++ = tochar(crc & 077);
X}
END_OF_main/kphys.c
if test 7513 -ne `wc -c <main/kphys.c`; then
    echo shar: \"main/kphys.c\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f main/makefile.msc -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"main/makefile.msc\"
else
echo shar: Extracting \"main/makefile.msc\" \(8027 characters\)
sed "s/^X//" >main/makefile.msc <<'END_OF_main/makefile.msc'
X# @(#) makefile.msc 2.1 1/22/90 13:02:07
X
X# Makefile for Microsoft C and MS-DOS
X
X##################
X# Beginning of configurable options
X
X# Choose a message-transport mechanism, and select the corresponding definition
X# of the DAEMON and PROGRAMS macros:
X#
X# 1 - The UUCP file transfer software provided with pc-mail (see the DEFAULT.ins
X#     document):
X#
X#    DAEMON    =
X#    PROGRAMS= mail.exe smail.exe nmail.exe cmail.exe cico.exe
X#
X# 2 - Daemon processes, presumably running on a file server (see the SLAVE.ins
X#     document):
X#
X#    DAEMON    = -DDAEMON
X#    PROGRAMS= mail.exe smail.exe nmail.exe cmail.exe
X#
X# 3 - Message transport by GNUUCP (see the GNUUCP.ins document):
X#
X#    DAEMON    = -DDAEMON
X#    PROGRAMS= mail.exe.exe smail.exe nmail.exe cmail.exe gmail.exe lmail.exe
X
XDAEMON    =
XPROGRAMS= mail.exe smail.exe nmail.exe cmail.exe
X
X# Memory model; use large for everything but the cico program.
X
XMODEL    = -Ml
X
X# End of configurable options
X##################
X
XMV    = ren
XRM    = del
XCC    = cl
XCFLAGS    = $(DAEMON) $(MODEL)
XLDFLAGS    = -F 2000 $(MODEL)
X
XTERMCAP    = ..\termcap\termcap.lib
X
XSHOBJ1    = call.obj email.obj file.obj screen.obj mbox.obj desk.obj reply.obj
XSHOBJ2    = create.obj kbdinp.obj pager.obj window.obj setup.obj errdisp.obj
XSHOBJ3    = invoke.obj textcopy.obj makework.obj mailfile.obj deskutil.obj
XSHOBJ4    = submit.obj edit.obj alias.obj snapshot.obj
XSHLIBS    = shlib1.lib shlib2.lib shlib3.lib shlib4.lib
X
XSMOBJ    = smail.obj unalias.obj hsearch.obj
X
XCMOBJ    = cmail.obj invoke.obj
X
XNMOBJ    = nmail.obj
X
XGMOBJ    = gmail.obj
X
XLMOBJ    = lmail.obj
X
XCIOBJ    = cico.obj comport.obj
XCIOBJ1    = comm.obj connect.obj getwork.obj kphys.obj kpres.obj ktrans.obj
XCIOBJ2    = logs.obj newseqno.obj protomsg.obj rmtname.obj scanwork.obj gphys.obj
XCIOBJ3    = sendwork.obj startup.obj switcher.obj xpres.obj gpres.obj gtrans.obj
XCILIBS    = cilib1.lib cilib2.lib cilib3.lib
X
XGNOBJ    = msd_dir.obj myalloc.obj params.obj path.obj newseqno.obj ascf.obj \
X    spoolfil.obj str.obj ms_parse.obj
X
X.SUFFIXES: .obj .asm
X
X.asm.obj:
X    masm $*.asm ;
X
X.c.obj:
X    $(CC) $(CFLAGS) -c $*.c
X
Xall:    $(PROGRAMS)
X
Xmail.exe: mail.obj $(SHLIBS) libgen.lib
X    $(CC) $(LDFLAGS) -o $@ mail.obj -link $(SHLIBS) libgen.lib $(TERMCAP)
X    -exepack $@ junk
X    $(RM) $@
X    $(MV) junk $@
X
Xsmail.exe: $(SMOBJ) libgen.lib
X    $(CC) $(LDFLAGS) -o $@ $(SMOBJ) -link libgen.lib
X    -exepack $@ junk
X    $(RM) $@
X    $(MV) junk $@
X
Xcmail.exe: $(CMOBJ) libgen.lib
X    $(CC) $(LDFLAGS) -o $@ $(CMOBJ) -link libgen.lib
X    -exepack $@ junk
X    $(RM) $@
X    $(MV) junk $@
X
Xnmail.exe: $(NMOBJ) libgen.lib
X    $(CC) $(LDFLAGS) -o $@ $(NMOBJ) -link libgen.lib
X    -exepack $@ junk
X    $(RM) $@
X    $(MV) junk $@
X
Xgmail.exe: $(GMOBJ) libgen.lib
X    $(CC) $(LDFLAGS) -o $@ $(GMOBJ) -link libgen.lib
X    -exepack $@ junk
X    $(RM) $@
X    $(MV) junk $@
X
Xlmail.exe: $(LMOBJ) libgen.lib
X    $(CC) $(LDFLAGS) -o $@ $(LMOBJ) -link libgen.lib
X    -exepack $@ junk
X    $(RM) $@
X    $(MV) junk $@
X
Xcico.exe: $(CIOBJ) $(CILIBS) libgen.lib
X    $(CC) $(LDFLAGS) -o $@ $(CIOBJ) -link $(CILIBS) libgen.lib
X    -exepack $@ junk
X    $(RM) $@
X    $(MV) junk $@
X
Xshlib1.lib: $(SHOBJ1)
X    $(RM) $@
X    lib $@ $(SHOBJ1) ;
X
Xshlib2.lib: $(SHOBJ2)
X    $(RM) $@
X    lib $@ $(SHOBJ2) ;
X
Xshlib3.lib: $(SHOBJ3)
X    $(RM) $@
X    lib $@ $(SHOBJ3) ;
X
Xshlib4.lib: $(SHOBJ4)
X    $(RM) $@
X    lib $@ $(SHOBJ4) ;
X
Xlibgen.lib: $(GNOBJ)
X    $(RM) $@
X    lib libgen $(GNOBJ) ;
X
Xcilib1.lib: $(CIOBJ1)
X    $(RM) $@
X    lib $@ $(CIOBJ1) ;
X
Xcilib2.lib: $(CIOBJ2)
X    $(RM) $@
X    lib $@ $(CIOBJ2) ;
X
Xcilib3.lib: $(CIOBJ3)
X    $(RM) $@
X    lib $@ $(CIOBJ3) ;
X
Xdepend:
X    @grep '^# *include *"' *.c|sed 's/c:# *include *"\([^"]*\)".*/obj:    \1/g'
X
Xalias.obj:    defs.h
Xalias.obj:    path.h
Xalias.obj:    pager.h
Xalias.obj:    mail.h
Xalias.obj:    screen.h
Xalias.obj:    status.h
Xascf.obj:    defs.h
Xascf.obj:    ascf.h
Xcall.obj:    defs.h
Xcall.obj:    path.h
Xcall.obj:    screen.h
Xcall.obj:    pager.h
Xcall.obj:    mail.h
Xcico.obj:    defs.h
Xcico.obj:    logs.h
Xcico.obj:    params.h
Xcico.obj:    comm.h
Xcico.obj:    status.h
Xcico.obj:    path.h
Xcmail.obj:    defs.h
Xcmail.obj:    ndir.h
Xcmail.obj:    path.h
Xcmail.obj:    status.h
Xcomm.obj:    defs.h
Xcomm.obj:    params.h
Xcomm.obj:    comm.h
Xconnect.obj:    defs.h
Xconnect.obj:    params.h
Xconnect.obj:    status.h
Xconnect.obj:    comm.h
Xconnect.obj:    logs.h
Xconnect.obj:    sysdep.h
Xcreate.obj:    defs.h
Xcreate.obj:    path.h
Xcreate.obj:    mail.h
Xcreate.obj:    status.h
Xcreate.obj:    screen.h
Xdesk.obj:    defs.h
Xdesk.obj:    mail.h
Xdesk.obj:    path.h
Xdesk.obj:    ndir.h
Xdesk.obj:    pager.h
Xdesk.obj:    screen.h
Xdesk.obj:    status.h
Xdesk.obj:    window.h
Xdesk.obj:    ascf.h
Xdesk.obj:    snapshot.h
Xdeskutil.obj:    defs.h
Xdeskutil.obj:    pager.h
Xdeskutil.obj:    mail.h
Xdeskutil.obj:    screen.h
Xdeskutil.obj:    status.h
Xedit.obj:    defs.h
Xedit.obj:    path.h
Xedit.obj:    mail.h
Xedit.obj:    status.h
Xemail.obj:    defs.h
Xemail.obj:    path.h
Xemail.obj:    pager.h
Xemail.obj:    screen.h
Xemail.obj:    mail.h
Xemail.obj:    status.h
Xerrdisp.obj:    defs.h
Xerrdisp.obj:    screen.h
Xerrdisp.obj:    pager.h
Xerrdisp.obj:    status.h
Xerrdisp.obj:    window.h
Xfile.obj:    defs.h
Xfile.obj:    screen.h
Xfile.obj:    pager.h
Xfile.obj:    mail.h
Xfile.obj:    ndir.h
Xfile.obj:    path.h
Xfile.obj:    status.h
Xfile.obj:    window.h
Xgetwork.obj:    defs.h
Xgetwork.obj:    logs.h
Xgetwork.obj:    status.h
Xgetwork.obj:    work.h
Xgetwork.obj:    params.h
Xgetwork.obj:    comm.h
Xgmail.obj:    defs.h
Xgmail.obj:    ndir.h
Xgmail.obj:    path.h
Xgphys.obj:    gp.h
Xgpres.obj:    gp.h
Xgtrans.obj:    gp.h
Xhsearch.obj:    hsearch.h
Xinvoke.obj:    defs.h
Xinvoke.obj:    status.h
Xkbdinp.obj:    defs.h
Xkbdinp.obj:    mail.h
Xkbdinp.obj:    screen.h
Xkbdinp.obj:    window.h
Xkio.obj:    uucp.h
Xkphys.obj:    kp.h
Xkpres.obj:    kp.h
Xktrans.obj:    kp.h
Xlmail.obj:    defs.h
Xlmail.obj:    path.h
Xlogs.obj:    defs.h
Xlogs.obj:    logs.h
Xlogs.obj:    path.h
Xlogs.obj:    status.h
Xmail.obj:    defs.h
Xmail.obj:    path.h
Xmail.obj:    status.h
Xmail.obj:    mail.h
Xmail.obj:    window.h
Xmailfile.obj:    defs.h
Xmailfile.obj:    path.h
Xmailfile.obj:    screen.h
Xmailfile.obj:    mail.h
Xmakework.obj:    defs.h
Xmakework.obj:    path.h
Xmakework.obj:    screen.h
Xmakework.obj:    mail.h
Xmbox.obj:    defs.h
Xmbox.obj:    path.h
Xmbox.obj:    pager.h
Xmbox.obj:    screen.h
Xmbox.obj:    mail.h
Xmbox.obj:    ascf.h
Xmbox.obj:    params.h
Xmbox.obj:    ms_parse.h
Xms_parse.obj:    defs.h
Xms_parse.obj:    ms_parse.h
Xmyalloc.obj:    defs.h
Xndir.obj:    ndir.h
Xnewseqno.obj:    defs.h
Xnewseqno.obj:    path.h
Xnewseqno.obj:    ndir.h
Xnewseqno.obj:    status.h
Xnmail.obj:    defs.h
Xnmail.obj:    ndir.h
Xnmail.obj:    path.h
Xnmail.obj:    status.h
Xnmail.obj:    ms_parse.h
Xpager.obj:    defs.h
Xpager.obj:    window.h
Xpager.obj:    pager.h
Xpager.obj:    path.h
Xpager.obj:    ascf.h
Xparams.obj:    defs.h
Xparams.obj:    path.h
Xparams.obj:    params.h
Xpath.obj:    defs.h
Xpath.obj:    path.h
Xpath.obj:    status.h
Xprotomsg.obj:    defs.h
Xprotomsg.obj:    params.h
Xprotomsg.obj:    comm.h
Xprotomsg.obj:    logs.h
Xprotomsg.obj:    status.h
Xreply.obj:    defs.h
Xreply.obj:    path.h
Xreply.obj:    pager.h
Xreply.obj:    screen.h
Xreply.obj:    status.h
Xreply.obj:    mail.h
Xreply.obj:    ascf.h
Xreply.obj:    ms_parse.h
Xrmtname.obj:    defs.h
Xrmtname.obj:    params.h
Xrmtname.obj:    comm.h
Xrmtname.obj:    logs.h
Xrmtname.obj:    status.h
Xrmtname.obj:    path.h
Xscanwork.obj:    defs.h
Xscanwork.obj:    params.h
Xscanwork.obj:    comm.h
Xscanwork.obj:    work.h
Xscanwork.obj:    path.h
Xscanwork.obj:    ndir.h
Xscanwork.obj:    logs.h
Xscreen.obj:    defs.h
Xscreen.obj:    screen.h
Xsendwork.obj:    defs.h
Xsendwork.obj:    work.h
Xsendwork.obj:    logs.h
Xsendwork.obj:    status.h
Xsendwork.obj:    params.h
Xsendwork.obj:    comm.h
Xsetup.obj:    defs.h
Xsetup.obj:    path.h
Xsetup.obj:    screen.h
Xsetup.obj:    mail.h
Xsetup.obj:    pager.h
Xsetup.obj:    params.h
Xsetup.obj:    status.h
Xsetup.obj:    window.h
Xsmail.obj:    defs.h
Xsmail.obj:    path.h
Xsmail.obj:    status.h
Xsnapshot.obj:    defs.h
Xsnapshot.obj:    path.h
Xsnapshot.obj:    ndir.h
Xsnapshot.obj:    snapshot.h
Xspoolfil.obj:    defs.h
Xspoolfil.obj:    path.h
Xspoolfil.obj:    ascf.h
Xspoolfil.obj:    status.h
Xspoolfil.obj:    ms_parse.h
Xstartup.obj:    defs.h
Xstartup.obj:    params.h
Xstartup.obj:    comm.h
Xstartup.obj:    logs.h
Xstartup.obj:    status.h
Xstartup.obj:    sysdep.h
Xstr.obj:    defs.h
Xsubmit.obj:    defs.h
Xsubmit.obj:    path.h
Xswitcher.obj:    defs.h
Xswitcher.obj:    work.h
Xswitcher.obj:    params.h
Xswitcher.obj:    comm.h
Xswitcher.obj:    logs.h
Xswitcher.obj:    status.h
Xsysdep.obj:    sysdep.h
Xtextcopy.obj:    defs.h
Xtextcopy.obj:    ascf.h
Xunalias.obj:    defs.h
Xunalias.obj:    hsearch.h
Xunalias.obj:    path.h
Xunalias.obj:    ascf.h
Xwindow.obj:    defs.h
Xwindow.obj:    window.h
Xxpres.obj:    defs.h
Xxpres.obj:    params.h
Xxpres.obj:    comm.h
Xxpres.obj:    status.h
Xxpres.obj:    sysdep.h
Xxpres.obj:    logs.h
END_OF_main/makefile.msc
if test 8027 -ne `wc -c <main/makefile.msc`; then
    echo shar: \"main/makefile.msc\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f main/makefile.unx -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"main/makefile.unx\"
else
echo shar: Extracting \"main/makefile.unx\" \(9508 characters\)
sed "s/^X//" >main/makefile.unx <<'END_OF_main/makefile.unx'
X# @(#) makefile.unx 2.1 1/22/90 13:02:09
X
X# Makefile for various versions of UNIX
X
X##################
X# Beginning of configurable options
X
X# Choose a message-transport mechanism, and select the corresponding definitions
X# for the DAEMON and PROGRAMS macros.
X#
X# 1 - The UUCP file transfer software provided with pc-mail (see the DEFAULT.ins
X#     document):
X#
X#    DAEMON =
X#    PROGRAMS = mail smail nmail cmail cico
X#
X# 2 - Daemon processes, presumably running on a file server (see the SLAVE.ins
X#     document):
X#
X#    DAEMON = -DDAEMON
X#    PROGRAMS = mail smail nmail cmail
X#
X# 3 - Message transport by GNUUCP (see the GNUUCP.ins document):
X#
X#    DAEMON = -DDAEMON
X#    PROGRAMS = mail smail nmail cmail gmail lmail
X
XDAEMON    =
XPROGRAMS= mail smail nmail cmail cico
X
X# Flags seen by both the c compiler and by the lint command
X#
X#    COPTS    = -DSIII -DUSENDIR    for AT&T unix System-III or System-V.2
X#    COPTS    = -DUSENDIR        for V7
X#    COPTS    = -Ddirect=dirent    SunOS 4.x
X#    COPTS    =             for most BSD4.x versions and clones
X
XCOPTS    = -DSIII -DUSENDIR
X
X# Object libraries needed for the interactive shell. The program only needs the
X# low-level terminal control routines and does its own screen management.
X#
X#    SHLIBS    = -lcurses    for SYSV.2
X#    SHLIBS    = -ltermcap    for V7+, BSD4.x, SunOS
X
XSHLIBS    = -lcurses
X
X# Object libraries needed by most other programs, e.g. for directory access.
X
XLIBS    =
X
X# Memory model, if you have to
X
XMODEL    = -Ml
X
X# End of configurable options
X##################
X
XSHELL    = /bin/sh
X
XCFLAGS    = -g $(COPTS) $(MODEL)
X
XRETRIEVE= xarch
X
XFILES    = README ascf.c ascf.h call.c cico.c cmail.c comm.c comm.h \
X    connect.c create.c defs.h desk.c deskutil.c \
X    email.c errdisp.c file.c getwork.c gp.h \
X    gphys.c gpres.c gtrans.c invoke.c kbdinp.c kio.c kp.h \
X    kphys.c kpres.c ktrans.c logs.c logs.h mailfile.c \
X    mail.c makework.c mbox.c myalloc.c \
X    newseqno.c pager.c pager.h params.c params.h path.c path.h \
X    protomsg.c nmail.c rmtname.c scanwork.c screen.c screen.h \
X    sendwork.c setup.c smail.c spoolfil.c startup.c \
X    status.h switcher.c sysdep.h window.c window.h \
X    work.h xpres.c comport.asm str.c alias.c edit.c submit.c \
X    unalias.c hsearch.c hsearch.h clmap.h comport.h hsearch.3 \
X    kproto.ms Beware makefile.unx makefile.msc \
X    mail.h Implement msd_dir.h \
X    msd_dir.c ndir.h ndir.c ms_parse.c ms_parse.h reply.c \
X    textcopy.c snapshot.c snapshot.h gmail.c lmail.c tutorial.ms \
X    DEFAULT.ins SLAVE.ins GNUUCP.ins DEFAULT.bat SLAVE.bat GNUUCP.bat \
X    PORTING
X
X# Sources and objects for the interactive mail program
X
XSHSRC    = mail.c call.c desk.c file.c screen.c mbox.c kbdinp.c \
X    pager.c window.c setup.c errdisp.c invoke.c path.c myalloc.c \
X    ndir.c params.c newseqno.c email.c spoolfil.c ascf.c \
X    makework.c mailfile.c deskutil.c str.c alias.c edit.c submit.c \
X    ms_parse.c reply.c textcopy.c snapshot.c create.c
XSHOBJ    = mail.o call.o desk.o file.o screen.o mbox.o kbdinp.o \
X    pager.o window.o setup.o errdisp.o invoke.o path.o myalloc.o \
X    ndir.o params.o newseqno.o email.o spoolfil.o ascf.o \
X    makework.o mailfile.o deskutil.o str.o alias.o edit.o submit.o \
X    ms_parse.o reply.o textcopy.o snapshot.o create.o
X
X# Sources and objects for the smail program
X
XSMSRC    = smail.c path.c ndir.c newseqno.c ascf.c spoolfil.c str.c \
X    unalias.c hsearch.c ms_parse.c
XSMOBJ    = smail.o path.o ndir.o newseqno.o ascf.o spoolfil.o str.o \
X    unalias.o hsearch.o ms_parse.o
X
X# Sources and objects for the nmail program
X
XNMSRC    = nmail.c path.c ndir.c str.c newseqno.c ms_parse.c
XNMOBJ    = nmail.o path.o ndir.o str.o newseqno.o ms_parse.o
X
X# Sources and objects for the cmail program
X
XCMSRC    = cmail.c path.c ndir.c invoke.c str.c newseqno.c
XCMOBJ    = cmail.o path.o ndir.o invoke.o str.o newseqno.o
X
X# Sources and objects for the gmail program
X
XGMSRC    = gmail.c ndir.c path.c str.c newseqno.c
XGMOBJ    = gmail.o ndir.o path.o str.o newseqno.o
X
X# Sources and objects for the lmail program
X
XLMSRC    = lmail.c ndir.c path.c str.c newseqno.c
XLMOBJ    = lmail.o ndir.o path.o str.o newseqno.o
X
X# Sources and objects for the cico program
X
XCISRC    = ndir.c comm.c connect.c getwork.c kphys.c kpres.c ktrans.c logs.c \
X    cico.c myalloc.c newseqno.c params.c path.c protomsg.c rmtname.c \
X    scanwork.c sendwork.c startup.c switcher.c xpres.c \
X    gpres.c gtrans.c gphys.c str.c
XCIOBJ    = ndir.o comm.o connect.o getwork.o kphys.o kpres.o ktrans.o logs.o \
X    cico.o myalloc.o newseqno.o params.o path.o protomsg.o rmtname.o \
X    scanwork.o sendwork.o startup.o switcher.o xpres.o \
X    gpres.o gtrans.o gphys.o str.o
X
Xall:    $(PROGRAMS)
X
Xmail:    $(SHOBJ)
X    $(CC) $(CFLAGS) -o $@ $(SHOBJ) $(SHLIBS) $(LIBS)
X
Xsmail:    $(SMOBJ)
X    $(CC) $(CFLAGS) -o $@ $(SMOBJ) $(LIBS)
X
Xnmail:    $(NMOBJ)
X    $(CC) $(CFLAGS) -o $@ $(NMOBJ) $(LIBS)
X
Xcmail:    $(CMOBJ)
X    $(CC) $(CFLAGS) -o $@ $(CMOBJ) $(LIBS)
X
Xcico:    $(CIOBJ)
X    $(CC) $(CFLAGS) -o $@ $(CIOBJ) $(LIBS)
X
Xgmail:    $(GMOBJ)
X    $(CC) $(CFLAGS) -o $@ $(GMOBJ) $(LIBS)
X
Xlmail:    $(LMOBJ)
X    $(CC) $(CFLAGS) -o $@ $(LMOBJ) $(LIBS)
X
X# Linting targets
X
Xmlint:
X    lint $(COPTS) $(SHSRC)
X
Xnlint:
X    lint $(COPTS) $(NMSRC)
X
Xslint:
X    lint $(COPTS) $(SMSRC)
X
Xclint:
X    lint $(COPTS) $(CISRC)
X
Xglint:
X    lint $(COPTS) $(GMSRC)
X
Xllint:
X    lint $(COPTS) $(LMSRC)
X
X# Other targets
X
Xtutorial.doc: tutorial.ms
X    nroff -ms $? | col -b >$@
X
X$(FILES):
X    $(RETRIEVE) $@
X
Xclean:
X    rm -f *.o core *.out
X
Xclobber: clean
X    rm -f mail cmail nmail smail gmail lmail cico
X
Xshar:    $(FILES) tutorial.doc
X    shar $(FILES) tutorial.doc
X
Xdepend:
X    @grep '^# *include *"' *.c|sed 's/c:# *include *"\([^"]*\)".*/o:    \1/g'
X
Xalias.o:    defs.h
Xalias.o:    path.h
Xalias.o:    pager.h
Xalias.o:    mail.h
Xalias.o:    screen.h
Xalias.o:    status.h
Xascf.o:    defs.h
Xascf.o:    ascf.h
Xcall.o:    defs.h
Xcall.o:    path.h
Xcall.o:    screen.h
Xcall.o:    pager.h
Xcall.o:    mail.h
Xcico.o:    defs.h
Xcico.o:    logs.h
Xcico.o:    params.h
Xcico.o:    comm.h
Xcico.o:    status.h
Xcico.o:    path.h
Xcmail.o:    defs.h
Xcmail.o:    ndir.h
Xcmail.o:    path.h
Xcmail.o:    status.h
Xcomm.o:    defs.h
Xcomm.o:    params.h
Xcomm.o:    comm.h
Xconnect.o:    defs.h
Xconnect.o:    params.h
Xconnect.o:    status.h
Xconnect.o:    comm.h
Xconnect.o:    logs.h
Xconnect.o:    sysdep.h
Xcreate.o:    defs.h
Xcreate.o:    path.h
Xcreate.o:    mail.h
Xcreate.o:    status.h
Xcreate.o:    screen.h
Xdesk.o:    defs.h
Xdesk.o:    mail.h
Xdesk.o:    path.h
Xdesk.o:    ndir.h
Xdesk.o:    pager.h
Xdesk.o:    screen.h
Xdesk.o:    status.h
Xdesk.o:    window.h
Xdesk.o:    ascf.h
Xdesk.o:    snapshot.h
Xdeskutil.o:    defs.h
Xdeskutil.o:    pager.h
Xdeskutil.o:    mail.h
Xdeskutil.o:    screen.h
Xdeskutil.o:    status.h
Xedit.o:    defs.h
Xedit.o:    path.h
Xedit.o:    mail.h
Xedit.o:    status.h
Xemail.o:    defs.h
Xemail.o:    path.h
Xemail.o:    pager.h
Xemail.o:    screen.h
Xemail.o:    mail.h
Xemail.o:    status.h
Xerrdisp.o:    defs.h
Xerrdisp.o:    screen.h
Xerrdisp.o:    pager.h
Xerrdisp.o:    status.h
Xerrdisp.o:    window.h
Xfile.o:    defs.h
Xfile.o:    screen.h
Xfile.o:    pager.h
Xfile.o:    mail.h
Xfile.o:    ndir.h
Xfile.o:    path.h
Xfile.o:    status.h
Xfile.o:    window.h
Xgetwork.o:    defs.h
Xgetwork.o:    logs.h
Xgetwork.o:    status.h
Xgetwork.o:    work.h
Xgetwork.o:    params.h
Xgetwork.o:    comm.h
Xgmail.o:    defs.h
Xgmail.o:    ndir.h
Xgmail.o:    path.h
Xgphys.o:    gp.h
Xgpres.o:    gp.h
Xgtrans.o:    gp.h
Xhsearch.o:    hsearch.h
Xinvoke.o:    defs.h
Xinvoke.o:    status.h
Xkbdinp.o:    defs.h
Xkbdinp.o:    mail.h
Xkbdinp.o:    screen.h
Xkbdinp.o:    window.h
Xkio.o:    uucp.h
Xkphys.o:    kp.h
Xkpres.o:    kp.h
Xktrans.o:    kp.h
Xlmail.o:    defs.h
Xlmail.o:    path.h
Xlogs.o:    defs.h
Xlogs.o:    logs.h
Xlogs.o:    path.h
Xlogs.o:    status.h
Xmail.o:    defs.h
Xmail.o:    path.h
Xmail.o:    status.h
Xmail.o:    mail.h
Xmail.o:    window.h
Xmailfile.o:    defs.h
Xmailfile.o:    path.h
Xmailfile.o:    screen.h
Xmailfile.o:    mail.h
Xmakework.o:    defs.h
Xmakework.o:    path.h
Xmakework.o:    screen.h
Xmakework.o:    mail.h
Xmbox.o:    defs.h
Xmbox.o:    path.h
Xmbox.o:    pager.h
Xmbox.o:    screen.h
Xmbox.o:    mail.h
Xmbox.o:    ascf.h
Xmbox.o:    params.h
Xmbox.o:    ms_parse.h
Xms_parse.o:    defs.h
Xms_parse.o:    ms_parse.h
Xmyalloc.o:    defs.h
Xndir.o:    ndir.h
Xnewseqno.o:    defs.h
Xnewseqno.o:    path.h
Xnewseqno.o:    ndir.h
Xnewseqno.o:    status.h
Xnmail.o:    defs.h
Xnmail.o:    ndir.h
Xnmail.o:    path.h
Xnmail.o:    status.h
Xnmail.o:    ms_parse.h
Xpager.o:    defs.h
Xpager.o:    window.h
Xpager.o:    pager.h
Xpager.o:    path.h
Xpager.o:    ascf.h
Xparams.o:    defs.h
Xparams.o:    path.h
Xparams.o:    params.h
Xpath.o:    defs.h
Xpath.o:    path.h
Xpath.o:    status.h
Xprotomsg.o:    defs.h
Xprotomsg.o:    params.h
Xprotomsg.o:    comm.h
Xprotomsg.o:    logs.h
Xprotomsg.o:    status.h
Xreply.o:    defs.h
Xreply.o:    path.h
Xreply.o:    pager.h
Xreply.o:    screen.h
Xreply.o:    status.h
Xreply.o:    mail.h
Xreply.o:    ascf.h
Xreply.o:    ms_parse.h
Xrmtname.o:    defs.h
Xrmtname.o:    params.h
Xrmtname.o:    comm.h
Xrmtname.o:    logs.h
Xrmtname.o:    status.h
Xrmtname.o:    path.h
Xscanwork.o:    defs.h
Xscanwork.o:    params.h
Xscanwork.o:    comm.h
Xscanwork.o:    work.h
Xscanwork.o:    path.h
Xscanwork.o:    ndir.h
Xscanwork.o:    logs.h
Xscreen.o:    defs.h
Xscreen.o:    screen.h
Xsendwork.o:    defs.h
Xsendwork.o:    work.h
Xsendwork.o:    logs.h
Xsendwork.o:    status.h
Xsendwork.o:    params.h
Xsendwork.o:    comm.h
Xsetup.o:    defs.h
Xsetup.o:    path.h
Xsetup.o:    screen.h
Xsetup.o:    mail.h
Xsetup.o:    pager.h
Xsetup.o:    params.h
Xsetup.o:    status.h
Xsetup.o:    window.h
Xsmail.o:    defs.h
Xsmail.o:    path.h
Xsmail.o:    status.h
Xsnapshot.o:    defs.h
Xsnapshot.o:    path.h
Xsnapshot.o:    ndir.h
Xsnapshot.o:    snapshot.h
Xspoolfil.o:    defs.h
Xspoolfil.o:    path.h
Xspoolfil.o:    ascf.h
Xspoolfil.o:    status.h
Xspoolfil.o:    ms_parse.h
Xstartup.o:    defs.h
Xstartup.o:    params.h
Xstartup.o:    comm.h
Xstartup.o:    logs.h
Xstartup.o:    status.h
Xstartup.o:    sysdep.h
Xstr.o:    defs.h
Xsubmit.o:    defs.h
Xsubmit.o:    path.h
Xswitcher.o:    defs.h
Xswitcher.o:    work.h
Xswitcher.o:    params.h
Xswitcher.o:    comm.h
Xswitcher.o:    logs.h
Xswitcher.o:    status.h
Xsysdep.o:    sysdep.h
Xtextcopy.o:    defs.h
Xtextcopy.o:    ascf.h
Xunalias.o:    defs.h
Xunalias.o:    hsearch.h
Xunalias.o:    path.h
Xunalias.o:    ascf.h
Xwindow.o:    defs.h
Xwindow.o:    window.h
Xxpres.o:    defs.h
Xxpres.o:    params.h
Xxpres.o:    comm.h
Xxpres.o:    status.h
Xxpres.o:    sysdep.h
Xxpres.o:    logs.h
END_OF_main/makefile.unx
if test 9508 -ne `wc -c <main/makefile.unx`; then
    echo shar: \"main/makefile.unx\" unpacked with wrong size!
fi
# end of overwriting check
fi
if test -f main/xpres.c -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"main/xpres.c\"
else
echo shar: Extracting \"main/xpres.c\" \(6977 characters\)
sed "s/^X//" >main/xpres.c <<'END_OF_main/xpres.c'
X/*++
X/* NAME
X/*      xpres 3
X/* SUMMARY
X/*      communications port i/o
X/* PROJECT
X/*      pc-mail
X/* PACKAGE
X/*      cico
X/* SYNOPSIS
X/*      xopen()
X/*
X/*      xclose()
X/*
X/*      xread(dummy,buf,len)
X/*      int dummy,len;
X/*      char *buf;
X/*
X/*      xwrite(dummy,buf,len)
X/*      int dummy,len;
X/*      char *buf;
X/*
X/*      xioctl(flag)
X/*      int flag;
X/* DESCRIPTION
X/*      The functions in this module perform functions analogous
X/*      to unix system calls, for the serial port of IBM-PC workalikes.
X/*
X/*      xopen() initializes a serial port. Also needed under UNIX.
X/*
X/*      xclose() closes a port.
X/*
X/*      xread(), xwrite() do not use their first argument. Under UNIX
X/*    one should use the standard read() and write() system calls.
X/*
X/*      xioctl() enables xon/xoff flow control if its argument
X/*      is nonzero. Not used under UNIX.
X/* SEE ALSO
X/*      comport.asm, IBM-PC comm routines by Tim Pozar
X/* DIAGNOSTICS
X/*      The read functions returns EOF in case of timeout; the write
X/*      function never detects any failure.
X/* BUGS
X/*      The xioctl() function is utterly primitive.
X/* AUTHOR(S)
X/*      MS-DOS parts derived from uuslave software (John Gilmore)
X/*    published on usenet early 1987. Bugs fixed & severely hacked by
X/*
X/*      W.Z. Venema
X/*      Eindhoven University of Technology
X/*      Department of Mathematics and Computer Science
X/*      Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
X/* CREATION DATE
X/*      Sat Mar 28 23:01:43 GMT+1:00 1987
X/* LAST MODIFICATION
X/*    90/01/22 13:02:59
X/* VERSION/RELEASE
X/*    2.1
X/*--*/
X
X#include <stdio.h>
X
X#include "defs.h"
X#include "params.h"
X#include "comm.h"            /* baud rates, tty ports,... */
X#include "status.h"
X#include "sysdep.h"            /* other system dependencies */
X#include "logs.h"
X
X#ifdef    unix
X#   include <sgtty.h>
X#   include <signal.h>
X#   include <setjmp.h>
X#endif
X
X#ifdef    MSDOS
X#   define B(x)    (115200/(x))
Xstatic int sigint();
Xstatic void get_time();
X
X#endif
X
Xtypedef struct {            /* baud-rate lookup table */
X    char   *name;
X    int     code;
X} Baud_table;
X
XBaud_table btable[] = {
X#ifdef    unix
X    "50",    B50,
X    "75",    B75,
X    "110",    B110,
X    "134",    B134,
X    "150",    B150,
X    "300",    B300,
X    "600",    B600,
X    "1200",    B1200,
X    "1800",    B1800,
X    "2400",    B2400,
X    "4800",    B4800,
X    "9600",    B9600,
X#endif
X#ifdef    MSDOS
X    "50",    B(50),
X    "75",    B(75),
X    "110",    B(110),
X    "134",    B(134),
X    "150",    B(150),
X    "300",    B(300),
X    "600",    B(600),
X    "1200",    B(1200),
X    "1800",    B(1800),
X    "2400",    B(2400),
X    "4800",    B(4800),
X    "9600",    B(9600),
X#endif
X    0,        0,
X};
X
X/* xopen - open communications port; parameters taken from setup table */
X
Xxopen()
X{
X    register Baud_table *bp;
X
X#ifdef    unix
X    struct sgttyb ttmode;
X
X#endif
X
X    for (bp = btable; bp->name; bp++)        /* look up baud rate */
X    if (strcmp(bp->name, COMM_RATE) == 0)
X        break;
X    if (bp->name == 0) {            /* bad baud rate in setup */
X    debug(4) ("Invalid baud rate %s\n", COMM_RATE);
X    exit(E_BADSETUP);
X    }
X#ifdef    unix
X    if ((ttfd = open(COMM_LINE, 2)) < 0) {    /* try to access port */
X    debug(4) ("Cannot access %s\n", COMM_LINE);
X    exit(E_BADSETUP);
X    }
X#ifndef SIII
X    if (ioctl(ttfd, TIOCEXCL))            /* exclusive access */
X    exit(E_BADSETUP);            /* not a terminal */
X#endif
X    ioctl(ttfd, TIOCHPCL);            /* hangup when done */
X    gtty(ttfd, &ttmode);            /* get port status */
X    ttmode.sg_ispeed = ttmode.sg_ospeed = bp->code;    /* set baud rate */
X    ttmode.sg_flags |= (RAW);            /* raw mode */
X#ifdef    SIII
X    ttmode.sg_flags &= ~ECHO;
X#else
X    ttmode.sg_flags &= ~(ECHO | TANDEM | CBREAK);    /* no echo, crlf, flow
X                             * control */
X#endif
X    stty(ttfd, &ttmode);
X#endif
X
X#ifdef MSDOS
X    set_tty(bp->code);                /* set baud rate, DTR */
X    init_comm();                /* turn interrupts on */
X    signal(SIGINT, sigint);            /* must reset tty */
X    inp_flush();                /* flush garbage */
X    sleep(3);
X#endif
X}
X
X/* xclose - release the communications port */
X
Xxclose()
X{
X#ifdef    unix
X    close(ttfd);
X#endif
X
X#ifdef MSDOS
X    uninit_comm();
X#endif
X}
X
X/* xread - read from the serial port */
X
X#ifdef    MSDOS
X
Xxread(fd, buf, cnt)
Xint     fd;
Xchar   *buf;
Xregister int cnt;
X{
X    register char *p = buf;
X    register int c;
X
X    while (cnt > 0 && (c = xgetc()) != EOF) {
X    *p++ = c;
X    cnt--;
X    }
X    return (p - buf ? p - buf : -1);
X}
X
X#endif                    /* MSDOS xwrite() */
X
X/* xgetc - read one character from serial port */
X
X#ifdef    unix
Xjmp_buf xbuf;
X
Xstatic  timeout()
X{                    /* aux function for xgetc */
X    longjmp(xbuf, 1);
X}
X
Xxgetc()
X{                    /* return next char */
X    char    ch;
X
X    if (setjmp(xbuf))                /* in case we time out */
X    return (EOF);                /* we just did */
X    signal(SIGALRM, timeout);            /* set timer response */
X    alarm(BYTE_TIMEOUT);            /* set timer */
X
X    if (read(ttfd, &ch, 1) != 1)        /* go wait for character */
X    return(EOF);
X    alarm(0);                    /* turn timer off */
X    return (ch & 0377);                /* successfull termination */
X}
X
X#endif                    /* unix xgetc() */
X
X#ifdef MSDOS
X
Xxgetc()
X{
X    char    data;
X
X    int     i;
X    unsigned s;
X    TIME    n;
X
X    i = 0;
X    get_time(&n);
X    s = n.sec;
X
X    /*
X     * Implement timeouts by staring at the clock while we wait. When the
X     * second hand moves, bump our counter.  This is a lot easier than
X     * figuring out the time when we'd time out (in hours, minutes, and
X     * seconds!) and comparing against that, which is what people tend to do
X     * in Unix where the time is just an integer number of seconds.
X     */
X    while (i < BYTE_TIMEOUT) {
X    while (s == n.sec) {
X        if (inp_cnt() != 0) {
X        data = inp_char();
X        return (data & 0xFF);
X        }
X        get_time(&n);
X    }
X    s = n.sec;
X    ++i;
X    }
X    return (EOF);
X}
X
X/* xwrite - write buffer to serial port */
X
Xxwrite(fd, buf, ctr)
Xint     fd;
Xregister char *buf;
Xint     ctr;
X{
X    register int i = ctr;
X
X    while (i-- > 0)
X    outp_char(*buf++);
X    return ctr;
X}
X
X/*
X * Routines specific to MS-DOS
X *
X * xioctl()    enable xon/xoff
X * get_timer()    read current time
X * sigint()    clean up interrupt handler and exit
X * sleep()    unix lookalike
X */
X
X/* xioctl - enable xon/xoff protocol */
X
Xxioctl(flag)
Xint     flag;
X{
X    set_xoff(flag);                /* Enable (flag != 0) or
X                         * disable flow control */
X}
X
X/* sigint - restore terminal settings on dialout line */
X
Xstatic int sigint()
X{
X    uninit_comm();
X    reset_tty();
X    exit(0);
X}
X
X/* get_time - read time with dos call */
X
Xstatic void get_time(n)
XTIME_PTR n;
X{
X    union REGS inregs;
X    union REGS outregs;
X
X    inregs.h.ah = 0x2c;                /* Please make a #define for
X                         * this, Tim */
X
X    int86(0x21, &inregs, &outregs);        /* Please #define the 0x21
X                         * too */
X
X    n->hour = outregs.h.ch;
X    n->minute = outregs.h.cl;
X    n->sec = outregs.h.dh;
X    n->hsec = outregs.h.dl;
X}
X
X#define    get_sec(n)    (get_time(&n),n.sec)
X
Xsleep(x)
Xint     x;
X{
X    TIME    n;                /* current time record */
X    unsigned s = get_sec(n);
X
X    while (x-- > 0) {
X    while (s == get_sec(n))
X         /* void */ ;
X    s = n.sec;
X    }
X}
X
X#endif                    /* MSDOS */
END_OF_main/xpres.c
if test 6977 -ne `wc -c <main/xpres.c`; then
    echo shar: \"main/xpres.c\" unpacked with wrong size!
fi
# end of overwriting check
fi
echo shar: End of archive 7 \(of 11\).
cp /dev/null ark7isdone
MISSING=""
for I in 1 2 3 4 5 6 7 8 9 10 11 ; do
    if test ! -f ark${I}isdone ; then
    MISSING="${MISSING} ${I}"
    fi
done
if test "${MISSING}" = "" ; then
    echo You have unpacked all 11 archives.
    rm -f ark[1-9]isdone ark[1-9][0-9]isdone
else
    echo You still need to unpack the following archives:
    echo "        " ${MISSING}
fi
##  End of shell archive.
exit 0