Source Code 1992 March/Source_Code_CD-ROM_Walnut_Creek_March_1992.iso/usenet/altsrcs/1/1814

Internet Message Format | 1990-12-28 | 41KB

From: [e-mail] (Richard H. Gumpertz)
Newsgroups: alt.sources
Subject: shar 3.49 (part 2 of 2)
Message-ID: <[e-mail]>
Date: 12 Sep 90 20:25:09 GMT

Submitted-by: rhg@cpsolv
Archive-name: shar3.49/part02

---- Cut Here and feed the following to sh ----
#!/bin/sh
# This is part 02 of shar3.49
# ============= shar.c ==============
if test -f 'shar.c' -a X"$1" != X"-c"; then
    echo 'x - skipping shar.c (File already exists)'
else
echo 'x - extracting shar.c (Text)'
sed 's/^X//' << 'SHAR_EOF' > 'shar.c' &&
Xchar *revision = "3.49";
Xchar RCS_ID[] = "$Header: /u/rhg/src/shar/shar.c,v 3.49 90/09/12 15:14:41 rhg Exp $";
X/*
X** shar.c
X
X  Defined functions:
X    gen_mkdir(path)
X    gen_mkdir_script(path)
X    setTOUCH()
X    walktree(rtn,rootname)
X    header(argc,argv)
X    helpuser()
X    main(argc,argv)
X    mode_map(mode,mode_str)
X    shar(file,RstrName)
X
X*/
X/*+:EDITS:*/
X/*:09-12-1990-14:[e-mail]-added missing return(0) to walkdown */
X/*:09-12-1990-14:[e-mail]-deleted some redundant, unused, code */
X/*:09-12-1990-00:[e-mail]-added more directions to the shar header */
X/*:09-09-1990-20:[e-mail]-added CLOSEDIR_VOID */
X/*:09-09-1990-18:[e-mail]-added check for "From" under OptPREFIX */
X/*:09-09-1990-11:[e-mail]-modified code under NOT STR(N)CMP_IS_FAST */
X/*:09-08-1990-21:[e-mail]-added NO_DIRENT for SunOS 3 sys/dir.h */
X/*:09-08-1990-21:[e-mail]-fixed bug in PREFIX check: strcmp(line,Delim) */
X/*:08-06-1990-00:[e-mail]-revised Cut message to be more explanatory */
X/*:08-05-1990-14:[e-mail]-merged Rname into walktree */
X/*:08-05-1990-12:[e-mail]-added walktree & support for sharing dirs */
X/*:08-05-1990-09:[e-mail]-change -Bn, -t, and -b to -bn, -T, and -B */
X/*:08-04-1990-15:[e-mail]-added -Bn to set compress -bn (default 12) */
X/*:08-04-1990-15:[e-mail]-changed shar3_???_.tmp to _shar_???_.tmp */
X/*:08-04-1990-15:[e-mail]-added check for "exit 0" under OptPREFIX */
X/*:08-04-1990-14:[e-mail]-added -m to generate TOUCH (default off) */
X/*:08-04-1990-14:[e-mail]-reversed the meaning of -x and deleted -O */
X/*:06-14-1990-14:[e-mail]-made Split and eXists compatible.
X/*:06-14-1990-14:[e-mail]-made -x the default and added -O
X/*:06-14-1990-12:[e-mail]-always terminate the && and report failures
X/*:06-14-1990-12:[e-mail]-clear mkdir_already between -l files
X/*:06-14-1990-12:[e-mail]-change PREFIX from a #define to an int variable.
X/*:04-19-1990-22:[e-mail]-get rid of "set" so "sh sharfil -c" will work */
X/*:04-19-1990-21:[e-mail]-add -F to clear OptPREFIX */
X/*:04-18-1990-08:[e-mail]-add OptPREFIX (for now, always on) */
X/*:07-09-1990-19:24-wht@n4hgf-back to fgrep amc -- fits more -m touches */
X/*:07-01-1990-18:37-wht@n4hgf-wait() needed after fork() */
X/*:05-19-1990-02:47-wht@n4hgf-change fgrep amc to mmdd */
X/*:05-16-1990-01:53-wht@n4hgf-Archive-name had extra period sometimes */
X/*:05-10-1990-20:39-wht@n4hgf-altos does not not like at-sign in filenames */
X/*:05-10-1990-13:38-wht@n4hgf-add -V Vanilla mode */
X/*:05-07-1990-00:06-wht@n4hgf-test all mallocs for Purity Of Essence */
X/*:05-07-1990-00:06-wht@n4hgf-add -S switch */
X/*:05-05-1990-01:37-relay.EU.net!rivm!a3-dont assume vax is running BSD */
X/*:04-18-1990-02:01-wht@n4hgf-3.20 [e-mail] did all the NICE work */
X/*:04-17-1990-14:[e-mail]-pretty up if-then-else-fi in shar file */
X/*:04-17-1990-12:[e-mail]-add Split and renamed old -l to -L */
X/*:04-17-1990-12:[e-mail]-add -c option to shar file execution */
X/*:04-17-1990-11:[e-mail]-simplify TOUCH logic in shar file */
X/*:04-17-1990-10:[e-mail]-create setTOUCH to avoid duplicate code */
X/*:04-17-1990-04:[e-mail]-add missing && to commands in shar file(s) */
X/*:04-17-1990-02:[e-mail]-add Compress */
X/*:04-16-1990-17:[e-mail]-add AvoidPipes as well as code to use pipes */
X/*:04-03-1990-20:09-wht@n4hgf-3.11 */
X/*:04-01-1990-13:20-pat@rwing-correct case on M option in getopt() call */
X/*:04-01-1990-13:50-pat@rwing-change defaults on -v, -w to be on */
X/*:03-29-1990-18:23-wht@n4hgf-add automatic sequent support */
X/*:03-28-1990-15:56-wht@n4hgf-add mode and length net.bandwidth chrome */
X/*:03-28-1990-14:23-wht@n4hgf-correct some runtime diagnostics */
X/*:11-14-1989-02:21-wht-SHAR_EOF was botched if last file char not newline */
X/*:11-02-1989-14:11-wht-add touch -am */
X
X/*
X Shar puts readable text files together in a package
X from which they are easy to extract.
X earlier attribution wht@n4hgf has:    decvax!microsof!uw-beave!jim
X                                    (James Gosling at CMU)
X*/
X/*
X *    I have made several mods to this program:
X *
X *    1) the -----Cut Here-----... now preceds the script.
X *    2) the cat has been changed to a sed which removes a prefix
X *    character from the beginning of each line of the extracted
X *    file, this prefix character is added to each line of the archived
X *    files and is not the same as the first character of the
X *    file delimeter.
X *    3) added several options:
X *        -c    - add the -----Cut Here-----... line.
X *        -d'del' - change the file delimeter to del.
X *        -s    - cause the resulting script to print the wc of
X *              the orignal file and the wc of the extracted
X *              file.
X *
X *                Michael A. Thompson
X *                Dalhousie University
X *                Halifax, N.S., Canada.
X */
X
X/*
X *    I, too, have been hacking this code. This is the version on sixhub
X *        bill davidsen ([e-mail])
X *
X *    - added support for binary files
X *    - automatic creation of limited size multiple file archives,
X *      each of which may be unpacked separately, and with sequence
X *      checking.
X *    - support for mixed text and binary files
X *    - preserve file permissions
X *    - restore to filename rather than pathname
X *
X */
X/*
X *  One good hack deserves another ... this version generates shell
X *  code which attempts to create missing directories
X *  handle deviants sun, vax, pyr (pyramid), SCO XENIX/UNIX automatically
X *  for sequent, add -DBSD42
X *  force Verbose on
X *  if unsharing system's touch Sys V compatible (allows touch -m),
X *  restore file dates
X *  -n switch puts an alpha "name" in header
X *  -a (if also -n) puts "Submitted-by:" & "Archive-name: <name>/part##
X *  use getopt
X *  as well as some other chrome-plated junque
X *  ...!gatech!emory!tridom!wht ([e-mail]) Warren Tucker
X *
X *  3.11 - Fri Apr  6 14:21:51 EDT 1990
X *  With due deference to davidsen@sixhub, more changes..... copies
X *  of this, like 3.10,  were mailed to him:
X *  From wht  Fri Apr  6 15:14:30 1990 remote from n4hgf
X *  Received: by n4hgf.UUCP (smail2.5-UNIX/386 5.3.2)
X *      id AA01781; 6 Apr 90 15:14:30 EDT (Fri)
X *  Date: Fri, 6 Apr 90 15:14:30 EDT
X *  X-Mailer: Mail User's Shell (6.5 4/17/89)
X *  From: wht@n4hgf (Warren Tucker)
X *  To: davidsen@sixhub
X *  Subject: shar 3.11
X *  X-Bang-Reply-to: gatech!n4hgf!wht -or- emory!tridom!n4hgf!wht
X *  Reply-to: [e-mail]
X *  Message-Id: <[e-mail]>
X *
X *  1. changes suggested by pat@rwing (Pat Myrto) and [e-mail]
X *  (Bill Silvert)
X *  2. fixes to who_am_i code in who@where.c
X *
X *  3.20 - Wed Apr 18 01:58:32 EDT 1990
X *  changes were made per edit notes by
XFrom: gatech!mailrus!uunet!cpsolv.CPS.COM!rhg (Richard H. Gumpertz)
X *  ...!gatech!n4hgf!wht ([e-mail]) Warren Tucker
X *
X */
X
X#include <stdio.h>
X#include <sys/types.h>
X#include <time.h>
X#include <sys/stat.h>
X#include <ctype.h>
X
X/* assume system v unless otherwise fixed */
X#if (defined(pyr) || defined(vax) || defined(sequent)) && !defined(BSD42) && !defined(SYS5)
X#define BSD42
X#endif
X#if defined(sun)    /* this miscreant doesn't exactly fit BSD or SYSV */
X#undef BSD42
X#undef SYS5
X#endif
X#if !defined(BSD42) && !defined(sun) && !defined(SYS5)
X#define SYS5
X#endif
X
X#if defined(sun) || defined(BSD42)
X#define strchr    index
X#define strrchr    rindex
X#endif
X
Xchar *strchr();
Xchar *strrchr();
X#ifdef __STDC__ /* my concession to ANSI-pansiness */
Xvoid *malloc();
X#else
Xchar *malloc();
X#endif
XFILE *fdopen();
XFILE *popen();
X
X#define    DELIM        "SHAR_EOF"/* put after each file */
X#define PREFIX1        'X'    /* goes in front of each line */
X#define PREFIX2        'Y'    /* goes in front of each line if Delim[0] == PREFIX1 */
X#define WC            "wc -c <"
X
Xint PREFIX = PREFIX1;    /* Character to get at the beginning of each line */
X
Xint Archive_name = 0;    /* option to generate "Archive-name:" headers */
Xint Verbose = 1;        /* option to provide append/extract feedback */
Xint Wc_c = 1;            /* option to provide wc checking */
Xchar *Delim = DELIM;    /* pointer to delimiter string */
Xint OptPREFIX = 1;        /* suppress PREFIX unless 1st char forces it */
Xint Cut = 0;            /* option to provide cut mark */
Xchar *CutMessage = "---- Cut Here and feed the following to sh ----\n";
Xint Binary = 0;            /* flag for binary files */
Xint AvoidPipes = 0;        /* use temp file instead of pipe to feed uudecode, etc.
X                           (better error detection at expense of disk space) */
Xint Vanilla = 0;        /* no Brown-Shirt mode */
Xint Touch = 0;            /* generate $TOUCH commands */
Xint Compress = 0;        /* run input files through compress (requires Binary) */
Xint CompressBits = 12;    /* -b option to compress */
Xint Mixed = 0;            /* mixed text and binary files */
Xint eXists = 1;            /* check if file exists */
Xint InterOW = 0;        /* interactive overwrite */
Xint PosParam = 0;        /* allow positional parameters */
Xint FileStrip;            /* strip directories from filenames */
X#ifdef    DEBUG
Xint de_bug = 0;            /* switch for debugging on */
X#define DeBug(f,v) if (de_bug) printf(f, v)
X#else    /* normal compile */
X#define DeBug(f,v)        /* do nothing */
X#endif
X
XFILE *fpout = stdout;
Xint shar();
Xunsigned limit = 0;
Xint Split = 0;            /* Split files in the middle */
Xlong ftell();
Xlong TypePos;            /* position for archive type message */
Xlong EndHeadPos;        /* position for first file in the shar file */
Xchar outname[50];        /* base for output filename */
Xchar filename[50];        /* actual output filename */
Xchar *sharname = (char *)0;
Xchar *submitter = (char *)0;
Xint filenum = 0;        /* output file # */
Xstruct stat fst;        /* check file type, access */
X
Xmain(argc,argv)
Xchar **argv;
X{
Xint status = 0;
Xint stdin_file_list = 0;
Xchar *oname;
Xint c;
Xextern int optind;
Xextern char *optarg;
X
X    while((c = getopt(argc,argv,"VmSvwd:BTCb:xXcfMpPFas:n:l:L:o:h")) != -1)
X    {
X        switch(c)
X        {
X        case 'V':
X            Vanilla = 1;
X            break;
X        case 'm':
X            Touch = 1;
X            break;
X        case 'S':
X            stdin_file_list = 1;
X            break;
X        case 'v':
X            Verbose = 0;
X            break;
X        case 'w':
X            Wc_c = 0;
X            break;
X        case 'd':
X            Delim = optarg;
X            PREFIX = (Delim[0] == PREFIX1 ? PREFIX2 : PREFIX1);
X            break;
X        case 'B': /* binary files */
X            Binary = 1;
X            Compress = 0;
X            break;
X        case 'T': /* text mode */
X            Binary = 0;
X            Compress = 0;
X            break;
X        case 'b': /* Compress bits */
X            CompressBits = atoi(optarg);
X            /* fall through to -C */
X        case 'C': /* Compress */
X            Binary = 1;
X            Compress = 1;
X            break;
X        case 'x': /* don't worry whether the file exist */
X            eXists = 0;
X            break;
X        case 'X': /* ask the user whether to overwrite existing files */
X            InterOW = 1;
X            eXists = 1;
X            break;
X        case 'c':
X            Cut = 1;
X            break;
X        case 'f': /* filenames only */
X            FileStrip = 1;
X            break;
X        case 'M': /* mixed text and binary */
X            Mixed = 1;
X            break;
X        case 'p': /* allow positional parameters */
X            PosParam = 1;
X            break;
X        case 'P': /* use temp files instead of pipes in the shar file */
X            AvoidPipes = 1;
X            break;
X        case 'F': /* force PREFIX to be put out even if not required */
X            OptPREFIX = 0;
X            break;
X        case 'l': /* soft size limit in k */
X            if((limit = atoi(optarg)) > 1)
X                --limit;
X            Split = 0;
X            DeBug("Soft limit %dk\n",limit);
X            break;
X        case 'L': /* hard size limit in k */
X            if((limit = atoi(optarg)) > 1)
X                --limit;
X            Split = (limit != 0);
X            AvoidPipes = 1;
X            DeBug("Hard limit %dk\n",limit);
X            break;
X        case 'n': /* name of archive */
X            sharname = optarg;
X            break;
X        case 's': /* submitter */
X            submitter = optarg;
X            break;
X        case 'a': /* generate Archive-name: headers */
X            Archive_name = 1;
X            break;
X        case 'o': /* specify output file */
X            oname = optarg;
X            strcpy(outname,oname);
X            strcat(outname,".");
X            filenum = 1;
X            strcpy(filename,outname);
X            strcat(filename,"01");
X            fpout = fopen(filename,"w");
X            if(!fpout)
X            { /* creation error */
X                perror("can't create output file");
X                exit(1);
X            }
X            break;
X#ifdef    DEBUG
X        case '$': /* totally undocumented $ option, debug on */
X            de_bug = 1;
X            break;
X#endif
X        default: /* invalid option */
X        case 'h': /* help */
X            helpuser();
X            break;
X        }
X    }
X
X    if(Vanilla)
X    {
X        fprintf(stderr,"Vanilla mode disabling years of progress :-)\n");
X        Wc_c = 0;
X        OptPREFIX = 0;
X#ifdef V_AVOIDPIPES    /* pipes are benign and only used with uudecode anyway */
X        AvoidPipes = 1;
X#endif /* V_AVOIDPIPES */
X#ifdef V_NOFORCE    /* If the user specifies non-defaults, let him have them */
X#else
X        Touch = 0;
X        InterOW = 0;
X        if(Binary || Mixed || Compress || PosParam)
X            fprintf(stderr,"WARNING: non-Text storage options overridden.\n");
X        Binary = 0;
X        Mixed = 0;
X        Compress = 0;
X        PosParam = 0;
X#endif /* V_NOFORCE */
X    }
X
X    if(stdin_file_list)
X    {
X        char stdin_buf[258];
X        argc = 0;
X        if(!(argv = (char **)malloc(1024 * sizeof(char *))))
X            goto MEMORY_ERROR;
X        stdin_buf[0] = 0;
X        while(fgets(stdin_buf,sizeof(stdin_buf),stdin))
X        {
X            if(argc == 1024)
X            {
X                fprintf(stderr,"max files from stdin is 1024!\n");
X                exit(1);
X            }
X            if(stdin_buf[0])
X                stdin_buf[strlen(stdin_buf) - 1] = 0;
X            if(!(argv[argc] = malloc(strlen(stdin_buf) + 1)))
X            {
XMEMORY_ERROR: /* NOT likely, but free software must pure as snow! */
X                fprintf(stderr,"out of memory handling stdin input at %d\n",
X                    argc);
X                exit(1);
X            }
X            strcpy(argv[argc],stdin_buf);
X            ++argc;
X            stdin_buf[0] = 0;
X        }
X        optind = 0;
X    }
X
X    if(optind >= argc)
X    {
X        fprintf(stderr,"shar: No input files\n");
X        helpuser();
X        exit(1);
X    }
X
X    if(Archive_name && !sharname)
X    {
X        fprintf(stderr,"shar: -n must accompany -a\n");
X        helpuser();
X        exit(1);
X    }
X
X    if(!submitter)
X    {
X        if(!(submitter = malloc(128)))
X        {
X            fprintf(stderr,"memory allocation failed\n"); /* NOT likely */
X            exit(1);
X        }
X        who_where(submitter);
X    }
X
X    if(header(argc-optind,&argv[optind]))
X        exit(2);
X
X    if(InterOW)
X    {
X        Verbose = 1;
X        fputs("wish=\n",fpout);
X        if(Archive_name)
X        {
X            fprintf(stderr,
X                "PLEASE do not submit -X shars to the usenet or other\n");
X            fprintf(stderr,
X                "public networks.  They will cause problems.\n");
X        }
X    }
X
X    EndHeadPos = ftell(fpout);
X
X    for( ; optind < argc; ++optind)
X    { /* process positional parameters and files */
X        if(PosParam)
X        {        /* allow -B and -T and -C inline */
X            if(strcmp(argv[optind],"-B") == 0)
X            { /* set binary */
X                Binary = 1;
X                Compress = 0;
X                continue;
X            }
X            if(strcmp(argv[optind],"-T") == 0)
X            { /* set mode text */
X                Binary = 0;
X                Compress = 0;
X                continue;
X            }
X            if(strcmp(argv[optind],"-C") == 0)
X            { /* set compress */
X                Binary = 1;
X                Compress = 1;
X                continue;
X            }
X        }
X        status += walktree(shar,argv[optind]);
X    }
X
X    /* delete the sequence file, if any */
X    if(Split && filenum > 1)
X    {
X        fputs("rm -f _shar_seq_.tmp\n",fpout);
X        fputs("echo You have unpacked the last part\n",fpout);
X        if(!Verbose)
X            fprintf(stderr,"Created %d files\n",filenum);
X    }
X    fputs("exit 0\n",fpout);
X    exit(status);
X}
X
X/*+-----------------------------------------------------------------------
X    mode_map(mode,mode_str)    build drwxrwxrwx string
X------------------------------------------------------------------------*/
Xchar *
Xmode_map(mode,mode_str)
Xunsigned short mode;
Xchar *mode_str;
X{
X#ifdef THIS_IS_NOT_NEEDED_FOR_SHAR
Xregister unsigned ftype = mode & S_IFMT;
X#endif
Xregister char *rtn;
Xstatic char result[12];
X
X    rtn = (mode_str == (char *)0) ? result : mode_str;
X
X    /*          drwxrwxrwx */
X    /*          0123456789 */
X    strcpy(rtn,"----------");
X
X#ifdef THIS_IS_NOT_NEEDED_FOR_SHAR
X    switch(ftype)
X    {
X        case S_IFIFO:    *rtn = 'p'; break; /* FIFO (named pipe) */
X        case S_IFDIR:    *rtn = 'd'; break; /* directory */
X        case S_IFCHR:    *rtn = 'c'; break; /* character special */
X        case S_IFBLK:    *rtn = 'b'; break; /* block special */
X        case S_IFREG:    *rtn = '-'; break; /* regular */
X
X#if defined(sun) | defined(BSD42)
X        case S_IFLNK:    *rtn = 'l'; break; /* symbolic link */
X        case S_IFSOCK:    *rtn = 's'; break; /* socket */
X#endif
X
X#if defined (SYS5)
X        case S_IFNAM:                        /* name space entry */
X            if(mode & S_INSEM)                /* semaphore */
X            {
X                *rtn = 's';
X                break;
X            }
X            if(mode & S_INSHD)                /* shared memory */
X            {
X                *rtn = 'm';
X                break;
X            }
X#endif
X
X        default:        *rtn = '?'; break;    /* ??? */
X    }
X#endif /* THIS_IS_NOT_NEEDED_FOR_SHAR */
X
X    if(mode & 000400) *(rtn + 1) = 'r';
X    if(mode & 000200) *(rtn + 2) = 'w';
X    if(mode & 000100) *(rtn + 3) = 'x';
X    if(mode & 004000) *(rtn + 3) = 's';
X    if(mode & 000040) *(rtn + 4) = 'r';
X    if(mode & 000020) *(rtn + 5) = 'w';
X    if(mode & 000010) *(rtn + 6) = 'x';
X    if(mode & 002000) *(rtn + 6) = 's';
X    if(mode & 000004) *(rtn + 7) = 'r';
X    if(mode & 000002) *(rtn + 8) = 'w';
X    if(mode & 000001) *(rtn + 9) = 'x';
X    if(mode & 001000) *(rtn + 9) = 't';
X
X    return(rtn);
X
X}    /* end of mode_map */
X
Xvoid
XsetTOUCH()
X{
X    if(Touch)
X    {
X        fputs("if touch 2>&1 | fgrep 'amc' > /dev/null\n",fpout);
X        fputs(" then TOUCH=touch\n",fpout);
X        fputs(" else TOUCH=true\n",fpout);
X        fputs("fi\n",fpout);
X    }
X} /* end of setTOUCH */
X
X#ifdef NO_WALKTREE
X
Xint
Xwalktree(rtn,file)                /* dummy walktree */
Xint (*rtn)(/*file,rname*/);    /* may also assume fst is set */
Xchar *file;
X{
X    register char *rname;
X
X    if(stat(file,&fst))
X    {
X        fprintf(stderr,"shar: Can't access %s\n",file);
X        return(1);
X    }
X
X    if(FileStrip)
X    { /* use just the filename */
X        rname = file + strlen(file);
X        while(rname > file && *rname != '/')
X            --rname;
X        if(*rname == '/')
X            ++rname;
X    }
X    else
X        rname = file;
X    if(!strncmp(rname,"./",2) && rname[2])
X        rname += 2;
X
X    return((*rtn)(file,rname));
X}
X
X#else /* NO_WALKTREE*/
X
X#ifdef NO_DIRENT
X
X#include <sys/dir.h>            /* SunOS 3, etc. */
X#define DIRENTRY struct direct
X
X#else /* NO_DIRENT */
X
X#include <dirent.h>            /* Doug Gwyn's dirent routines */
X#define DIRENTRY struct dirent
X
X#endif /* NO_DIRENT */
X
XDIR *opendir();
XDIRENTRY *readdir();
X
Xint
Xwalkdown(rtn,file,filelen,rname)
Xint (*rtn)(/*file,rname*/);    /* may also assume fst is set */
Xchar *file, *rname;            /* *rname must be *file + n where n < filelen */
Xint filelen;
X{
X    DIR *dirp;
X    DIRENTRY *dp;
X
X    if(stat(file,&fst))
X    {
X        fprintf(stderr,"shar: Can't access %s\n",file);
X        return(1);
X    }
X
X    if((fst.st_mode & S_IFMT) != S_IFDIR)
X        return((*rtn)(file,rname));
X
X    if(!(dirp = opendir(file)))
X    {
X        fprintf(stderr,"shar: unable to open directory %s",file);
X        return(1);
X    }
X
X    if(!strcmp(rname,"."))
X        rname += 2;                /* avoid "./xxx" when sharing "." */
X
X    while((dp = readdir(dirp)))
X        if (strcmp(dp->d_name,".") && strcmp(dp->d_name,".."))
X        {
X            int newlen;
X
X            if((newlen = filelen + 1 + strlen(dp->d_name)) >= MAXNAMLEN)
X            {
X                fprintf(stderr,"shar: file name too long: %s/%s\n",
X                        file,dp->d_name);
X                return(1);
X            }
X            sprintf(file + filelen,"/%s",dp->d_name);
X
X            if(walkdown(rtn,file,newlen,rname))
X                return(1);
X
X            file[filelen] = '\0';    /* in case we print any error messages */
X        }
X
X#ifdef CLOSEDIR_VOID
X    closedir(dirp);
X#else /* CLOSEDIR_VOID */
X    if(closedir(dirp))
X    {
X        fprintf(stderr,"shar: unable to close directory %s",file);
X        return(1);
X    }
X#endif /* CLOSEDIR_VOID */
X    return(0);
X}
X
Xint
Xwalktree(rtn,rootname)                /* real walktree */
Xint (*rtn)(/*file,rname*/);    /* may also assume fst is set */
Xchar *rootname;
X{
X    char file[MAXNAMLEN];
X    int filelen;
X    register char *rname;
X
X    if((filelen = strlen(rootname)) >= MAXNAMLEN)
X    {
X        fprintf(stderr,"shar: file name too long: %s\n",rootname);
X        return(1);
X    }
X    strcpy(file,rootname);
X
X    if(FileStrip)
X    { /* use just the filename */
X        rname = file + filelen;
X        while(rname > file && *rname != '/')
X            --rname;
X        if(*rname == '/')
X            ++rname;
X    }
X    else
X        rname = file;
X    if(!strncmp(rname,"./",2) && rname[2])
X        rname += 2;
X
X    return(walkdown(rtn,file,filelen,rname));
X}
X
X#endif /* NO_WALKTREE */
X
Xint
Xonecheck(file,rname)
Xchar *file, *rname;
X{
X    if(access(file,04))
X    {
X        fprintf(stderr,"shar: Can't access %s\n",file);
X        return(1);
X    }
X
X    return(0);
X}
X
Xint
Xoneheader(file,rname)
Xchar *file, *rname;
X{
X    fprintf(fpout,"# %6ld %s %s\n",fst.st_size,
X        mode_map(fst.st_mode & ~(S_ISUID|S_ISGID|S_ISVTX),(char *)0),rname);
X    return(0);
X}
X
Xheader(argc,argv)
Xchar **argv;
X{
Xint i;
XFILE *fpsource;    /* pipe temp */
Xchar s128[128];
Xlong now;
Xstruct tm *utc;
Xstruct tm *gmtime();
X
X    /* see if any conflicting options */
X    if(limit && !filenum)
X    { /* can't rename what you don't have */
X        fprintf(stderr,"Can't use -l or -L option without -o\n");
X        helpuser();
X        return(1);
X    }
X
X    for(i = 0; i < argc; i++)
X    { /* skip positional parameters */
X        if(PosParam &&
X            (strcmp(argv[i],"-B") == 0 ||
X             strcmp(argv[i],"-T") == 0 ||
X             strcmp(argv[i],"-C") == 0))
X            continue;
X
X        if(walktree(onecheck,argv[i]))
X            return(1);
X    }
X
X    if(Archive_name)
X    {
X        fprintf(fpout,"Submitted-by: %s\n",submitter);
X        fprintf(fpout,"Archive-name: %s%s%02d\n\n",
X            sharname,(strchr(sharname,'/')) ? "" : "/part",
X            (filenum) ? filenum : 1);
X    }
X
X    if(Cut)
X        fputs(CutMessage,fpout);
X    fputs("#!/bin/sh\n",fpout);
X    if(sharname)
X        fprintf(fpout,"# This is %s, a shell archive (produced by shar %s)\n",
X            sharname,revision);
X    else
X        fprintf(fpout,"# This is a shell archive (produced by shar %s)\n",
X            revision);
X    fputs("# To extract the files from this archive, save it to a file, remove\n",
X        fpout);
X    fputs("# everything above the \"!/bin/sh\" line above, and type \"sh file_name\".\n#\n",
X        fpout);
X
X    time(&now);
X    utc = gmtime(&now);
X    fprintf(fpout,"# made %02d/%02d/%04d %02d:%02d UTC by %s\n",
X        utc->tm_mon + 1,utc->tm_mday,utc->tm_year + 1900,
X        utc->tm_hour,utc->tm_min,
X        submitter);
X
X#if defined(SYS5)
X    if(!(fpsource = popen("/bin/pwd","r")))
X        return(-1);
X    fgets(s128,sizeof(s128),fpsource);
X    s128[strlen(s128) - 1] = 0;
X    fclose(fpsource);
X#else
X#if defined(BSD42) || defined(sun)
X    getwd(s128);
X#else
X#include "Need_conditional_compile_fix"
X#endif
X#endif
X    fprintf(fpout,"# Source directory %s\n",s128);
X
X    fprintf(fpout,"#\n# existing files %s\n",
X        (eXists) ? "will NOT be overwritten unless -c is specified"
X            : ((InterOW) ? "MAY be overwritten"
X                : "WILL be overwritten"));
X
X    if(InterOW)
X        fputs("# The unsharer will be INTERACTIVELY queried.\n",fpout);
X
X    if(Vanilla)
X    {
X        fputs("# This format requires very little intelligence at unshar time.\n",fpout);
X        fputs("# ",fpout);
X        if(eXists || Split)
X            fputs("\"if test\", ",fpout);
X        if(Split)
X            fputs("\"cat\", \"rm\", ",fpout);
X        fputs("\"echo\", \"true\", and \"sed\" may be needed.\n",fpout);
X    }
X
X    if(Split)
X    { /* may be split, explain */
X        fputs("#\n",fpout);
X        TypePos = ftell(fpout);
X        fprintf(fpout,"%-75s\n%-75s\n","#","#");
X    }
X
X    fputs("#\n# This shar contains:\n",fpout);
X    fputs("# length  mode       name\n",fpout);
X    fputs("# ------ ---------- ------------------------------------------\n",
X        fpout);
X    for(i = 0; i < argc; i++)
X    { /* output names of files but not parameters */
X        if(PosParam &&
X            (strcmp(argv[i],"-B") == 0 ||
X             strcmp(argv[i],"-T") == 0 ||
X             strcmp(argv[i],"-C") == 0))
X            continue;
X        if(walktree(oneheader,argv[i]))
X            exit(1);
X    }
X    fputs("#\n",fpout);
X
X    setTOUCH();
X
X    if(Split)
X    { /* now check the sequence */
X        fputs("if test -r _shar_seq_.tmp; then\n",fpout);
X        fputs("\techo 'Must unpack archives in sequence!'\n",fpout);
X        fputs("\techo Please unpack part `cat _shar_seq_.tmp` next\n",fpout);
X        fputs("\texit 1\nfi\n",fpout);
X    }
X    return(0);
X}
X
X#define MAX_MKDIR_ALREADY    128    /* ridiculously enough */
Xchar *mkdir_already[MAX_MKDIR_ALREADY];
Xint mkdir_already_count = 0;
X
Xvoid
Xgen_mkdir(path)
Xchar *path;
X{
Xregister int ialready;
Xchar *cptr;
X
X/* if already generated code for this dir creation, don't do again */
X    for(ialready = 0; ialready < mkdir_already_count; ialready++)
X    {
X        if(!strcmp(path,mkdir_already[ialready]))
X            return;
X    }
X
X/* haven't done this one */
X    if(mkdir_already_count == MAX_MKDIR_ALREADY)
X    {
X        fprintf(stderr,"too many directories for mkdir generation\n");
X        exit(255);
X    }
X    if(!(cptr = mkdir_already[mkdir_already_count++] = malloc(strlen(path)+1)))
X    {
X        fprintf(stderr,"out of memory for mkdir generation\n");
X        exit(255);
X    }
X    strcpy(cptr,path);
X
X/* generate the text */
X    fprintf(fpout,"if test ! -d '%s'; then\n",path);
X    if(Verbose)
X        fprintf(fpout,"    echo 'x - creating directory %s'\n",path);
X    fprintf(fpout,"    mkdir '%s'\n",path);
X    fputs("fi\n",fpout);
X
X}    /* end of gen_mkdir */
X
Xvoid
Xgen_mkdir_script(path)
Xregister char *path;
X{
Xregister char *cptr;
X
X    for(cptr = strchr(path,'/'); cptr; cptr = strchr(cptr + 1,'/'))
X    {
X        /* avoid empty string if leading or double '/' */
X        if(cptr == path || *(cptr - 1) == '/')
X            continue;
X        /* omit '.' */
X        if((*(cptr - 1) == '.') && ((cptr == path + 1) || (*(cptr - 2) == '/')))
X            continue;
X        *cptr = 0;                /* temporarily terminate string */
X        gen_mkdir(path);
X        *cptr = '/';
X    }
X}    /* end of gen_mkdir_script */
X
Xint
Xshar(file,RstrName)
Xchar *file, *RstrName;
X{
Xchar line[BUFSIZ];
XFILE *fpsource;
Xlong cursize,remaining,ftell();
Xint split = 0;        /* file split flag */
Xchar *filetype;        /* text or binary */
Xstruct tm *lt;
Xchar *filename_base;
X
X    /* check to see that this is still a regular file  and readable */
X    if((fst.st_mode & S_IFMT) != S_IFREG)
X    { /* this is not a regular file */
X        fprintf(stderr,"shar: %s is not a regular file\n",file);
X        return(1);
X    }
X    if(access(file,04))
X    {
X        fprintf(stderr,"shar: Can't access %s\n",file);
X        return(1);
X    }
X
X    /* if limit set, get the current output length */
X    if(limit)
X    {
X        cursize = ftell(fpout);
X        remaining = (limit * 1024L) - cursize;
X        DeBug("In shar: remaining size %ld\n",remaining);
X
X        if(!Split && cursize > EndHeadPos &&
X            (Binary ? fst.st_size + fst.st_size/3 : fst.st_size) > remaining)
X        { /* change to another file */
X            DeBug("Newfile, remaining %ld, ",remaining);
X            DeBug("limit still %d\n",limit);
X
X            /* close the "&&" and report an error if any of the above failed */
X            fprintf(fpout,"true || echo 'restore of %s failed'\n",RstrName);
X
X            fprintf(fpout, "echo End of part %d, continue with part %d\n",
X                filenum,filenum + 1);
X            fputs("exit 0\n",fpout);
X
X            fclose(fpout);
X
X            /* Clear mkdir_already in case the user unshars out of order */
X            while (mkdir_already_count > 0)
X                free(mkdir_already[--mkdir_already_count]);
X
X            /* form the next filename */
X            sprintf(filename,"%s%02d",outname,++filenum);
X            fpout = fopen(filename,"w");
X            if(Verbose)
X                fprintf(stderr,"Starting file %s\n",filename);
X
X            if(Archive_name)
X            {
X                fprintf(fpout,"Submitted-by: %s\n",submitter);
X                fprintf(fpout,"Archive-name: %s%s%02d\n\n",
X                    sharname,(strchr(sharname,'/')) ? "" : "/part",
X                    (filenum) ? filenum : 1);
X            }
X
X            if(Cut)
X                fputs(CutMessage,fpout);
X
X            fputs("#!/bin/sh\n",fpout);
X            fprintf(fpout,"# This is part %02d of %s\n",
X                filenum,(sharname) ? sharname : "a multipart archive");
X
X            setTOUCH();
X
X            EndHeadPos = ftell(fpout);
X        }
X    }
X
X    fprintf(fpout,"# ============= %s ==============\n",RstrName);
X
X    gen_mkdir_script(RstrName);
X
X    /* if mixed, determine the file type */
X    if(Mixed)
X    {
X        int count;
X        sprintf(line,"file %s | egrep -c \"text|shell\"",file);
X        fpsource = popen(line,"r");
X        fscanf(fpsource,"%d",&count);
X        pclose(fpsource);
X        Binary = (count != 1);
X    }
X
X    if(Binary)
X    { /* fork a uuencode process */
X        static int pid,pipex[2];
X
X        pipe(pipex);
X        fflush(fpout);
X
X        if(pid = fork())
X        { /* parent, create a file to read */
X            if(pid < 0)
X            {
X                fprintf(stderr,"could not fork!\n");
X                exit(1);
X            }
X            close(pipex[1]);
X            fpsource = fdopen(pipex[0],"r");
X            filetype = (Compress ? "Compressed" : "Binary");
X        }
X        else
X        { /* start writing the pipe with encodes */
X            FILE *outptr;
X
X            if(Compress)
X            {
X                sprintf(line, "compress -b%d < '%s'", CompressBits, file);
X                fpsource = popen(line, "r");
X            }
X            else
X                fpsource = fopen(file, "rb");
X            outptr = fdopen(pipex[1],"w");
X            fprintf(outptr,"begin 600 %s\n",
X                (Compress ? "_shar_cmp_.tmp" : RstrName));
X            encode(fpsource,outptr);
X            fprintf(outptr,"end\n");
X            if(Compress)
X                pclose(fpsource);
X            else
X            {
X                fclose(fpsource);
X            }
X            exit(0);
X        }
X    }
X    else
X    {
X        fpsource = fopen(file,"r");
X        filetype = "Text";
X    }
X
X    if(fpsource)
X    {
X        /* protect existing files */
X        if(eXists)
X        {
X            fprintf(fpout,"if test -f '%s' -a X\"$1\" != X\"-c\"; then\n",
X                RstrName);
X            if(InterOW)
X            {
X                fputs("\tcase $wish in\n",fpout);
X                fprintf(fpout,"\tA*|a*) echo 'x - overwriting %s';;\n",
X                    RstrName);
X                fprintf(fpout,
X        "\t*) echo '? - overwrite %s -- [No], [Y]es, [A]ll, [Q]uit? '\n",
X                    RstrName);
X                fputs("\t\tread wish;;\n",fpout);
X                fputs("\tesac\n",fpout);
X                fputs("\tcase $wish in\n",fpout);
X                fputs("\tQ*|q*) echo aborted; exit 86;;\n",fpout);
X                fputs("\tA*|a*|Y*|y*) x=Y;;\n",fpout);
X                fputs("\t*) x=N;;\n",fpout);
X                fputs("\tesac\n",fpout);
X                fputs("else\n",fpout);
X                fputs("\tx=Y\n",fpout);
X                fputs("fi\n",fpout);
X                fputs("if test $x != Y; then\n",fpout);
X                fprintf(fpout,"\techo 'x - skipping %s'\n",RstrName);
X            }
X            else
X                fprintf(fpout,"\techo 'x - skipping %s (File already exists)'\n",
X                    RstrName);
X            if (Split)
X                fputs("\trm -f _shar_wnt_.tmp\n",fpout);
X            fputs("else\n",fpout);
X            if (Split)
X                fputs("> _shar_wnt_.tmp\n",fpout);
X        }
X
X        fprintf(stderr,"shar: saving %s (%s)\n",file,filetype);
X        if(Verbose)
X        { /* info on archive and unpack */
X            fprintf(fpout,"echo 'x - extracting %s (%s)'\n",
X                RstrName,filetype);
X        }
X        if(Binary)
X        { /* run sed through uudecode (via temp file if might get split) */
X            fprintf(fpout, "sed 's/^%c//' << '%s' %s &&\n",
X                   PREFIX,Delim,
X                (AvoidPipes ? "> _shar_tmp_.tmp" : "| uudecode"));
X        }
X        else
X        { /* just run it into the file */
X            fprintf(fpout,"sed 's/^%c//' << '%s' > '%s' &&\n",
X                PREFIX,Delim,RstrName);
X        }
X        while(fgets(line,BUFSIZ,fpsource))
X        { /* output a line and test the length */
X            if(OptPREFIX && isgraph(line[0]) && line[0] != PREFIX
X#ifdef STRCMP_IS_FAST
X               && strcmp(line,Delim)
X#else /* STRCMP_IS_FAST */
X               && (line[0] != Delim[0] || strcmp(line,Delim))
X#endif /* STRCMP_IS_FAST */
X#ifdef STRNCMP_IS_FAST
X               && strncmp(line,"exit 0",6)    /* See unshar -e: avoid "exit 0" */
X               && strncmp(line,"From",4)    /* Don't let mail prepend a ">" */
X#else /* STRNCMP_IS_FAST */
X               && (line[0] != 'e'            /* See unshar -e: avoid "exit 0" */
X                   || strncmp(line,"exit 0",6))
X               && (line[0] != 'F'            /* Don't let mail prepend a ">" */
X                      || strncmp(line,"From",4))
X#endif /* STRNCMP_IS_FAST */
X              )
X                fputs(line,fpout);
X            else
X            {
X                fprintf(fpout,"%c%s",PREFIX,line);
X                --remaining;    /* count PREFIX (in case Split is in effect) */
X            }
X#ifdef MSDOS    /* This probably doesn't work but accounts for some old code */
X            if(Split && (remaining -= strlen(line) + 1) < 0)    /* 1 extra for CR */
X#else /* MSDOS */
X            if(Split && (remaining -= strlen(line)) < 0)
X#endif /* MSDOS */
X            { /* change to another file */
X                DeBug("Newfile, remaining %ld, ",remaining);
X                DeBug("limit still %d\n",limit);
X
X                if(line[strlen(line) - 1] != '\n')
X                    fputc('\n',fpout);
X
X                fprintf(fpout,"%s\n",Delim);
X
X                /* close the "&&" and report an error if any of the above failed */
X                fprintf(fpout,"true || echo 'restore of %s failed'\n",RstrName);
X
X                if (eXists)
X                    fputs("fi\n",fpout);
X
X                if(Verbose)
X                { /* output some reassurance */
X                    fprintf(fpout, "echo 'End of %s part %d'\n",
X                        (sharname) ? sharname : "",filenum);
X                    fprintf(fpout, "echo 'File %s is continued in part %d'\n",
X                        RstrName,filenum + 1);
X                }
X                else
X                    fprintf(fpout,
X                        "echo 'End of part %d, continue with part %d'\n",
X                        filenum,filenum + 1);
X                fprintf(fpout,"echo %d > _shar_seq_.tmp\n",filenum + 1);
X                fputs("exit 0\n",fpout);
X
X                if(filenum == 1)
X                { /* rewrite the info lines on the firstheader */
X                    fseek(fpout,TypePos,0);
X                    fprintf(fpout,"%-75s\n%-75s\n",
X                        "# This is part 1 of a multipart archive",
X                        "# do not concatenate these parts, unpack them in order with /bin/sh");
X                }
X                fclose(fpout);
X
X                /* form the next filename */
X                sprintf(filename,"%s%02d",outname,++filenum);
X                fpout = fopen(filename,"w");
X
X                if(Archive_name)
X                {
X                    fprintf(fpout,"Submitted-by: %s\n",submitter);
X                    fprintf(fpout,"Archive-name: %s%s%02d\n\n",
X                        sharname,(strchr(sharname,'/')) ? "" : "/part",
X                        (filenum) ? filenum : 1);
X                }
X
X                if(Cut)
X                    fputs(CutMessage,fpout);
X                fputs("#!/bin/sh\n",fpout);
X
X                fprintf(fpout,"# this is %s (part %d of %s)\n",
X                    ((filename_base = strrchr(filename,'/'))
X                        ? filename_base + 1
X                        : filename),
X                    filenum,
X                    (sharname) ? sharname : "a multipart archive");
X                fputs(
X        "# do not concatenate these parts, unpack them in order with /bin/sh\n",
X                    fpout);
X                fprintf(fpout,"# file %s continued\n#\n",RstrName);
X
X                setTOUCH();
X
X                fputs("if test ! -r _shar_seq_.tmp; then\n",fpout);
X                fputs("\techo 'Please unpack part 1 first!'\n",fpout);
X                fputs("\texit 1\nfi\n",fpout);
X                fputs("(read Scheck\n",fpout);
X                fprintf(fpout," if test \"$Scheck\" != %d; then\n",filenum);
X                fputs("\techo Please unpack part \"$Scheck\" next!\n",
X                    fpout);
X                fputs("\texit 1\n",fpout);
X                fputs(" else\n\texit 0\n fi\n",fpout);
X                fputs(") < _shar_seq_.tmp || exit 1\n",fpout);
X
X                if(eXists)
X                    if(Verbose)
X                    { /* keep everybody informed */
X                        fputs("if test ! -f _shar_wnt_.tmp; then\n",fpout);
X                        fprintf(fpout,"\techo 'x - still skipping %s'\n",
X                                RstrName);
X                        fputs("else\n",fpout);
X                    }
X                    else
X                        fputs("if test -f _shar_wnt_.tmp; then\n",fpout);
X
X                if(Verbose)
X                { /* keep everybody informed */
X                    fprintf(stderr,"Starting file %s\n",filename);
X                    fprintf(fpout,"echo 'x - continuing file %s'\n",RstrName);
X                }
X                fprintf(fpout,"sed 's/^%c//' << '%s' >> '%s' &&\n",
X                    PREFIX,Delim,
X                    (Binary ? "_shar_tmp_.tmp" : RstrName));
X                remaining = limit * 1024L;
X                split = 1;
X            }
X        }
X
X        (void) fclose(fpsource);
X        while(wait((int *)0) >= 0)
X            ;
X
X        if(line[strlen(line) - 1] != '\n')
X            fputc('\n',fpout);
X
X        fprintf(fpout,"%s\n",Delim);
X        if(split && Verbose)
X            fprintf(fpout,"echo 'File %s is complete' &&\n",RstrName);
X
X        /* if this file was uuencoded w/Split, decode it and drop the temp */
X        if(Binary && AvoidPipes)
X        {
X            if(Verbose)
X                fprintf(fpout,"echo 'uudecoding file %s' &&\n",RstrName);
X            fputs("uudecode < _shar_tmp_.tmp && rm -f _shar_tmp_.tmp &&\n",fpout);
X        }
X
X        /* if this file was compressed, uncompress it and drop the temp */
X        if(Compress)
X        {
X            if(Verbose)
X                fprintf(fpout,"echo 'uncompressing file %s' &&\n",RstrName);
X            fprintf(fpout,
X                "compress -d < _shar_cmp_.tmp > '%s' && rm -f _shar_cmp_.tmp &&\n",
X                RstrName);
X        }
X
X        if(Touch)
X        {
X            /* set the dates as they were */
X            lt = localtime(&fst.st_mtime);
X            fprintf(fpout,"$TOUCH -am %02d%02d%02d%02d%02d '%s' &&\n",
X                lt->tm_mon + 1,
X                lt->tm_mday,
X                lt->tm_hour,
X                lt->tm_min,
X                lt->tm_year,
X                RstrName);
X        }
X
X        if(Vanilla)
X        {
X            /* close the "&&" and report an error if any of the above failed */
X            fprintf(fpout,"true || echo 'restore of %s failed'\n",RstrName);
X        }
X        else
X        {
X            /* set the permissions as they were */
X            fprintf(fpout,"chmod %04o %s ||\n",
X                fst.st_mode & 00777,RstrName);
X
X            /* report an error if any of the above failed */
X            fprintf(fpout,"echo 'restore of %s failed'\n",RstrName);
X
X            if(Wc_c)
X            { /* validate the transferred file */
X                FILE *pfp;
X                char command[BUFSIZ];
X
X                sprintf(command,"%s '%s'",WC,file);
X                if((pfp = popen(command,"r")))
X                {
X                    char wc[BUFSIZ];
X
X                    fscanf(pfp,"%s",wc);
X                    fprintf(fpout,"Wc_c=\"`%s '%s'`\"\n",WC,RstrName);
X                    fprintf(fpout,"test %s -eq \"$Wc_c\" ||\n",wc);
X                    fprintf(fpout,
X                        "\techo '%s: original size %s, current size' \"$Wc_c\"\n",
X                        RstrName, wc);
X                    pclose(pfp);
X                }
X            }
X        }
X
X        /* if the exists option is in place close the if */
X        if(eXists)
X        {
X            if (Split)
X                fputs("rm -f _shar_wnt_.tmp\n",fpout);
X
X            fputs("fi\n",fpout);
X        }
X
X        return(0);
X    }
X    else
X    {
X        fprintf(stderr,"shar: Can't open %s (%s): ",file,filetype);
X        perror("");
X        return(1);
X    }
X}
X
X
Xchar *helpinfo[] =
X{
X    "-V  produce \"vanilla\" shars demanding little of the unshar environment",
X    "-v  verbose messages OFF while executing",
X    "-m  restore file modification dates & times with \"touch\" commands",
X    "-w  don't check with 'wc -c' after unpack",
X    "-a  generate Submitted-by: & Archive-name: headers",
X    "-nXXX   use XXX as the name of the archive (documentation)",
X    "-s  override automatically determined submitter name",
X    "-x  overwrite existing files without checking if they already exist",
X    "-X  interactively overwrite existing files (NOT FOR NET SHARS)",
X    "-B  treat all files as binary, use uuencode",
X    "-T  treat all files as text (default)",
X    "-C  compress and uuencode all files",
X    "-bXX    pass -bXX (default 12) to compress when compressing (implies -C)",
X    "-p  allow positional parameter options. The options \"-B\" and \"-T\"",
X    "    and \"-C\" may be embedded, and files to the right of the",
X    "    option will be processed in the specified mode",
X    "-M  mixed mode. Determine if the files are text or",
X    "    binary and archive correctly.",
X    "-P  use temp files instead of pipes in the shar file",
X    "-F  force the prefix character on every line (even if not required)",
X    "-c  start the shar with a cut line",
X    "-f  restore by filename only, rather than path",
X    "-dXXX   use XXX to delimit the files in the shar",
X    "-oXXX   (or -o XXX) output to file XXX.01 thru XXX.nn",
X    "-lXX    limit output file size to XXk bytes (but don't split files)",
X    "-LXX    limit output file size to XXk bytes (may split files)",
X    "-S      read files to wrap from stdin, ignoring argument line",
X    "\nThe -S option reads filenames one per line from stdin; input",
X    "format must be similar to 'find' output, except that if -p",
X    "is specified, -B, -T or -C may be used (on lines by themselves)",
X    "e.g., find . -type f -print | sort | shar -C -l50 -o /tmp/big",
X    "\nThe 'o' option is required if the 'l' or 'L' option is used",
X    "The 'n' option is required if the 'a' option is used",
X    "\n-a generates sharname/part## headers. If the -a argument contains",
X    "a '/', then /part is not appended",
X    "The automatic submitter name is trivial: essentially `whoami`@`uname`",
X    (char *)0
X};
X
Xhelpuser()
X{                /* output a command format message */
X    register char **ptr;
X    fprintf(stderr,
X        "shar %s\nusage: shar [ options ] file ...\n       shar -S [ options ]\n",
X        revision);
X    for(ptr = helpinfo; *ptr; ptr++)
X        fprintf(stderr,"%s\n",*ptr);
X
X    exit(1);
X}
X/* vi: set tabstop=4 shiftwidth=4: */
SHAR_EOF
chmod 0644 shar.c ||
echo 'restore of shar.c failed'
Wc_c="`wc -c < 'shar.c'`"
test 38151 -eq "$Wc_c" ||
    echo 'shar.c: original size 38151, current size' "$Wc_c"
fi
exit 0
--
  ==========================================================================
  | Richard H. Gumpertz    [e-mail]    [phone] or [phone] |
  | Computer Problem Solving, 8905 Mohawk Lane, Leawood, Kansas 66206-1749 |
  ==========================================================================