Source Code 1992 March/Source_Code_CD-ROM_Walnut_Creek_March_1992.iso/usenet/compsrcs/misc/volume07/newspath.edw

Internet Message Format | 1991-08-27 | 12.6 KB

From decwrl!ucbvax!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!ginosko!uunet!allbery Thu Aug  3 08:50:42 PDT 1989
Article 985 of comp.sources.misc:
Path: decwrl!ucbvax!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!ginosko!uunet!allbery
From: [e-mail] (Brandon S. Allbery - comp.sources.misc)
Newsgroups: comp.sources.misc
Subject: v07i093: pathalias builder alternative.
Keywords: /usr/lib/uucp/paths, pathalias program
Message-ID: <[e-mail]>
Date: 22 Jul 89 01:01:53 GMT
Sender: [e-mail]
Reply-To: [e-mail] (Ed Wells)
Organization: Wells Computer Systems Corp., Levittown, Pa. 19058
Lines: 404
Approved: [e-mail] (Brandon S. Allbery - comp.sources.misc)

Posting-number: Volume 7, Issue 93
Submitted-by: [e-mail] (Ed Wells)
Archive-name: news2path.edw

  In order to create a pathalias file in a restricted space, I wrote a
few programs that keep the intermediate files smaller.  I putting this
in the public domain for others that may like to do the same.  See
the 'read.me' file in the shar archive for more information.

  A few things that I will be adding in the future myself is the ability
to build pathalias files for several systems without having to rebuild
the intermediate file again (20/20 hind site ya' know!).

  If you add anything to this, please send it back to me.


---- Cut Here and unpack ----
#!/bin/sh
# shar:    Shell Archiver  (v1.22)
#
#    Run the following text with /bin/sh to create:
#      read.me
#      pa.paths
#      usa.paths
#      news2path.c
#
if test -f read.me; then echo "File read.me exists"; else
sed 's/^X//' << 'SHAR_EOF' > read.me &&
X
X
X
X
X
X
X
X                          Wells Computer Systems Corp.
X                         Box 343, Levittown, Pa. 19058
X                                 (215)-943-6061
X
X
X
X
X         Here's a little program that I wrote to use the information  stored
X    in  /usr/spool/news/comp/mail/maps/*  directly without having to build a
X    second set of files nearly totaling the same size.
X
X         This program extracts  only  the  information  that  is  needed  to
X    rebuild  a  pathalias file.  It extracts from whatever files are present
X    removing the headers, shar information and all lines that start  with  a
X    '#'  sign.  This leaves only the minimal amount of information needed to
X    start building a paths file.
X
X         I also have two shell scripts that I have provided.  Both of  these
X    shell  programs  accept  one  argument  which is the target system name.
X    Each shell is used to filter the listing down to either just 'usa' list-
X    ings  or 'usa.pa' (Pennsylvania) listings.  I also have the program look
X    for a file named 'local.$1' where $1 gets replaced with the target  name
X    I  am building a file for.  It's in this file that I normally put all of
X    the unlisted/private/local connections to each system that I am building
X    a  paths  file  for.   I also list the 'smart-host' system here also for
X    each system.
X
X         When I'm done, I just take the file named 'paths.$1' (where  $1  is
X    replaced  with the target name) and install it in my /usr/lib/uucp/paths
X    file or send it to the remote site requiring a path.
X
X         This program also requires 3 programs from the  public  domain  for
X    processing  this  information  to  its  final  output.   These  are  the
X    'pathalias', 'pathproc' and 'pathprune' programs.
X
X         This source code is the property of Wells  Computer  Systems  Corp.
X    and  is  being  released  to the Usenet community for any not-for-profit
X    use.
X
X         If you add anything to this, please submit it back to me.
X
X
X
X                                  Enjoy,
X                                       Ed Wells, President
X
X
X
X
X
X
X
X
X
X
X
X                                 July 14, 1989
X
X
SHAR_EOF
chmod 0640 read.me || echo "restore of read.me fails"
set `wc -c read.me`;Sum=$1
if test "$Sum" != "2170"
then echo original size 2170, current size $Sum;fi
fi
if test -f pa.paths; then echo "File pa.paths exists"; else
sed 's/^X//' << 'SHAR_EOF' > pa.paths &&
X#
X# Program name = "pa.paths"
X# @(#)pa.paths    1.7
X# Written by:    Ed Wells, President, Wells Computer Systems Corp.
X#        Wells Computer Systems Corp., Box 343, Levittown, Pa. 19058
X#        (215)-943-6061, Voice
X#        (215)-943-0435, (Data Telebit 19200-1200)
X#        Usenet:    wells!edw / edw@wells
X#        UNIX System V 3.1  /  SCO Xenix V
X#
X# Original date .....    Sat Jan 14 13:47:16 EST 1989
X# Last update     .....    Sat Jan 14 13:47:16 EST 1989 (before SCCS)
X# SCCS delta date ...  3/21/89 -- 10:19:55
X# SCCS extracted  ...  7/14/89 -- 05:55:43
X#
X# Program description    : Used to generate paths for Pennsylvania only.
X#    Inputs        : target system name from standard input.
X#    Outputs        : paths.{target_name}
X#    Status/Errors    : Standard error
X#    Files accessed    : See program
X#    NOTE        : A filename called "local.{target_name} must exist
X#                with a list of locally known systems.
X#
Xsccsid="@(#)pa.paths    1.7 3/21/89\n"
XREVID="Revision 1.7 3/21/89\n"
X#
Xif [ $# -ne 1 ]
X    then    echo "Usage: $0 target_system_name" ; exit 1
Xfi
X#
XNEWS=/usr/spool/news
XLIMIT='.usa.pa.'
XLOCAL="local.$1 ../mail/MY.USENET.REG"
XSELFILE=/ram/sel.file
XTMPFILE=/ram/d.paths
Xtrap "rm -f pp paths $SELFILE $TMPFILE ; exit" 0 1 2 3 15
X#
Xecho "Creating a list of filename to use."
Xfind $NEWS/comp/mail/maps -type f -print >$SELFILE
X#
X# Now create one merged file from the list in $SELFILE.
X#
Xecho "Creating a combined list from the \"$NEWS/comp/mail/maps\" directory"
Xecho "All news/shar headers will be extracted leaving only the file."
Xnews2path $LIMIT <$SELFILE >$TMPFILE
Xrm $SELFILE
X#
Xecho "Using \"pathalias\" to process the combined file."
Xpathalias -fv -l $1 $TMPFILE $LOCAL > paths
X#
Xecho "Using \"pathproc\" to sort/order the file."
Xpathproc < paths > pp
Xif [ ! -s pp ]
Xthen
X    echo pathproc error
X    mv paths pp
Xfi
Xecho "Delete entries not needed with \"pathprune\"."
Xpathprune -v < pp > paths
Xif [ -s paths ]
Xthen
X    rm -f pp
Xelse
X    echo pathprune error
X    mv pp paths
Xfi
X
Xmv paths paths.$1
Xecho "Your completed file is in \"paths.$1\"."
Xexit 0
SHAR_EOF
chmod 0444 pa.paths || echo "restore of pa.paths fails"
set `wc -c pa.paths`;Sum=$1
if test "$Sum" != "1975"
then echo original size 1975, current size $Sum;fi
fi
if test -f usa.paths; then echo "File usa.paths exists"; else
sed 's/^X//' << 'SHAR_EOF' > usa.paths &&
X#
X# Program name = "usa.paths"
X# @(#)usa.paths    1.9
X# Written by:    Ed Wells, President, Wells Computer Systems Corp.
X#        Wells Computer Systems Corp., Box 343, Levittown, Pa. 19058
X#        (215)-943-6061, Voice
X#        (215)-943-0435, (Data Telebit 19200-1200)
X#        Usenet:    wells!edw / edw@wells
X#        UNIX System V 3.1  /  SCO Xenix V
X#
X# Original date .....    Sat Jan 14 13:47:16 EST 1989
X# Last update     .....    Sat Jan 14 13:47:16 EST 1989 (before SCCS)
X# SCCS delta date ...  3/21/89 -- 12:38:26
X# SCCS extracted  ...  7/14/89 -- 05:55:43
X#
X# Program description    : Used to generate paths for USA only.
X#    Inputs        : target system name from standard input.
X#    Outputs        : paths.{target_name}
X#    Status/Errors    : Standard error
X#    Files accessed    : See program
X#    NOTE        : A filename called "local.{target_name} must exist
X#                with a list of locally known systems.
X#
Xsccsid="@(#)usa.paths    1.9 3/21/89\n"
XREVID="Revision 1.9 3/21/89\n"
X#
Xif [ $# -ne 1 ]
X    then    echo "Usage: $0 target_system_name" ; exit 1
Xfi
X#
XNEWS=/usr/spool/news
XLIMIT='.usa.'
XLOCAL="local.$1 ../mail/MY.USENET.REG"
XSELFILE=/tmp/sel.file
XTMPFILE=/tmp/d.paths
Xtrap "rm -f pp paths $SELFILE $TMPFILE ; exit" 0 1 2 3 15
X#
Xecho "Creating a list of filename to use."
Xfind $NEWS/comp/mail/maps -type f -print >$SELFILE
X#
X# Now create one merged file from the list in $SELFILE.
X#
Xecho "Creating a combined list from the \"$NEWS/comp/mail/maps\" directory"
Xecho "All news/shar headers will be extracted leaving only the file."
Xnews2path $LIMIT <$SELFILE >$TMPFILE
Xrm $SELFILE
X#
Xecho "Using \"pathalias\" to process the combined file."
Xpathalias -fv -l $1 $TMPFILE $LOCAL > paths
X#
Xecho "Using \"pathproc\" to sort/order the file."
Xpathproc < paths > pp
Xif [ ! -s pp ]
Xthen
X    echo pathproc error
X    mv paths pp
Xfi
Xecho "Delete entries not needed with \"pathprune\"."
Xpathprune -v < pp > paths
Xif [ -s paths ]
Xthen
X    rm -f pp
Xelse
X    echo pathprune error
X    mv pp paths
Xfi
X
Xmv paths paths.$1
Xecho "Your completed file is in \"paths.$1\"."
Xexit 0
SHAR_EOF
chmod 0444 usa.paths || echo "restore of usa.paths fails"
set `wc -c usa.paths`;Sum=$1
if test "$Sum" != "1966"
then echo original size 1966, current size $Sum;fi
fi
if test -f news2path.c; then echo "File news2path.c exists"; else
sed 's/^X//' << 'SHAR_EOF' > news2path.c &&
X/*
X * Program name = "news2path.c"
X * @(#)news2path.c    1.3
X * Written by:    Ed Wells, President, Wells Computer Systems Corp.
X *        Wells Computer Systems Corp., Box 343, Levittown, Pa. 19058
X *        (215)-943-6061, Voice
X *        (215)-943-0435, (Data Telebit 19200-1200)
X *        Usenet:    wells!edw / edw@wells
X *        UNIX System V 3.1  /  SCO Xenix V
X *
X * Original date .....    Fri Jan 13 09:18:25 EST 1989
X * Last update     .....    Fri Jan 13 09:18:25 EST 1989 (before SCCS)
X * SCCS delta date ...  3/21/89 -- 11:09:09
X * SCCS extracted  ...  3/21/89 -- 11:09:31
X *
X * Program description    : Used to extract header information off of files in
X *            :    the /usr/spool/news/comp/mail/maps directory
X *            :    and provide a processed file for 'pathalias'.
X *    Inputs        : a list of filename(s) on stdin.
X *    Outputs        : stdout
X *    Errors        : stderr
X */
X
X    static    char    sccsid[] = "@(#)news2path.c    1.3 3/21/89\n";
X    static    char    REVID[] = "Revision 1.3 3/21/89\n";
X
X#define    BSIZE        256
X#define    ENDSHAR        "SHAR_EOF"
X#define    LIMITLINE    "echo shar: extracting "
X#define    STR1        "echo"
X#define    STR2        "shar:"
X#define    STR3        "extracting"
X
X#ifndef    FALSE
X#define    FALSE    0
X#endif
X
X#ifndef    TRUE
X#define    TRUE    !FALSE
X#endif
X
X#include    <stdio.h>
X#include    <ctype.h>
X
Xmain(ac, av)
X    int    ac;
X    char    *av[];
X{
X    FILE    *fp, *fopen();
X    char    fname[BSIZE], buf[BSIZE], buf2[BSIZE], *cp, *cp1;
X    char    *fgets(), *strcpy(), *strtok();
X    int    strcmp();
X    int    i, j, firstline;
X
X    if (ac != 2) {
X        fprintf(stderr, "Usage: %s (LIMIT_STRING)\n", av[0]);
X        fprintf(stderr,
X"LIMIT_STRING selects/rejects the file based on finding a matching string\n");
X        fprintf(stderr, "\tUses standard in/out and error.\n\n");
X        fprintf(stderr, "\tstdin  - list of filename(s) to open.\n");
X        fprintf(stderr, "\tstdout - data for 'pathalias'.\n");
X        fprintf(stderr, "\tstderr - Status information.\n");
X        fprintf(stderr,
X"Example: %s u.usa.pa\n", av[0]);
X        exit(1);
X    }
X/*
X * Read while filenames are available on stdin.
X */
X    while ( fscanf(stdin, "%s", fname) > 0) {
X        if ( (fp=fopen(fname, "r")) == NULL) {
X            fprintf(stderr, "ERROR: Can open file (%s)\n", fname);
X            exit(2);
X        }
X        fprintf(stderr, "\"%s\" opened for processing..... ", fname);
X/*
X * Read up until the LIMITLINE is found (or EOF).
X */
X        while (fgets(buf, BSIZE, fp) != NULL) {
X            if (!strncmp(buf, LIMITLINE, strlen(LIMITLINE)))
X                goto select;
X        }
X        fprintf(stderr, "ERROR: LIMIT_STRING missing.\n");
X        exit(2);
X/*
X * Find out if this file should be select (in which case we continue)
X * or rejected.
X */
X    select:
X        cp = buf;
X        while ( (cp1 = strtok(cp, " \r\n")) != NULL ) {
X            strcpy(buf2, cp1);
X            cp = NULL;
X            if (!strcmp(buf2, STR1))
X                continue;
X            if (!strcmp(buf2, STR2))
X                continue;
X            if (!strcmp(buf2, STR3))
X                continue;
X            if ( instr(buf2, av[1]) >= 0 ) {
X                fprintf(stderr, "\t\tSelected!  Proceeding.\n");
X                break;    /* Quit "while" loop, and continue */
X            } else {
X                fprintf(stderr, "\t\tFile ignored!\n");
X                goto nextfile;
X            }
X        }
X/*
X * Read until the first understandable line shows up.
X */
X        firstline = FALSE;
X        while( fgets(buf, BSIZE, fp) != NULL ) {
X            if (buf[0] == '#' && isalpha(buf[1]) &&
X                (buf[2] == ' ' || buf[2] == '\t') ) {
X                firstline = TRUE;
X                break;
X            }
X        }
X
X        while ( fgets(buf, BSIZE, fp) != NULL ) {
X            if ( !strncmp(buf, ENDSHAR, 8) )
X                goto nextfile; /* We are done with this file */
X            if (!strlen(buf))
X                continue;     /* This one is blank    */
X            if (buf[0] == '#')
X                continue;    /* This isn't for us    */
X            fputs(buf, stdout);
X        }
Xnextfile: fclose(fp);
X    }
X    fprintf(stderr,"\n\tSelecting complete\n");
X    exit(0);
X}
SHAR_EOF
chmod 0440 news2path.c || echo "restore of news2path.c fails"
set `wc -c news2path.c`;Sum=$1
if test "$Sum" != "3539"
then echo original size 3539, current size $Sum;fi
fi
exit 0

--
=========================================================================
Edward E. Wells Jr., President                Voice: (215)-943-6061
Wells Computer Systems Corp., Box 343, Levittown, Pa. 19058
{dsinc,francis,hotps,houxl,lgnp1,mdi386,pebco}!wells!edw