[errcode] Remove unused contrib/errcode scripts

The new errdb error code database is more accurate than the regular
expression-based errcode scripts.  This patch removes errcode scripts
in favor of errdb.

The gpxebot.py script is no longer needed, gpxebot has been released
as a separate open source codebase:

  http://git.etherboot.org/?p=people/stefanha/gpxebot.git;a=summary

Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

contrib/errcode/README

@@ -1,35 +0,0 @@
-Error Code Lookup for iPXE
-==========================
-This program looks up iPXE error codes so you can locate the line of source
-code which produced the error.
-
-Setup
------
-You must run:
-./build_errcodedb.py >errcodedb.py
-
-This extracts error code definitions from the iPXE source code and produces a
-"database" which is used by the main program.
-
-Once you have done this errcode.py and errcodedb.py are the only files you
-need.  They are now independent of the iPXE source code and can be moved
-anywhere.
-
-[OPTIONAL]
-A PHP script is provided as a web interface.  First edit errcode.php to point
-$ERRCODE_PATH to the errcode.py script.  Then move errcode.php to a location
-visible from your web server.
-
-[OPTIONAL]
-A simple IRC bot is provided.  Edit ipxebot.py to fill in the IRC details.
-
-Usage
------
-Looking up error codes on the command-line:
-./errcode.py 0x12345678
-
-Further information
--------------------
-See http://etherboot.org/.
-
-Released under the GPL and written by Stefan Hajnoczi <stefanha@gmail.com>.

contrib/errcode/build_errcodedb.py

@@ -1,93 +0,0 @@
-#!/usr/bin/env python
-# Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of the
-# License, or any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-import sys
-import re
-
-pxenv_status_files = ('../../src/include/errno.h', )
-errfile_files = ('../../src/include/ipxe/errfile.h',
-            '../../src/arch/i386/include/bits/errfile.h')
-posix_errno_files = ('../../src/include/errno.h', )
-
-PXENV_STATUS_RE = re.compile(r'^#define\s+(PXENV_STATUS_[^\s]+)\s+(.+)$', re.M)
-ERRFILE_RE = re.compile(r'^#define\s+(ERRFILE_[^\s]+)\s+(.+)$', re.M)
-POSIX_ERRNO_RE = re.compile(r'^#define\s+(E[A-Z0-9]+)\s+(?:\\\n)?.*(0x[0-9a-f]+).*$', re.M)
-
-def err(msg):
-    sys.stderr.write('%s: %s\n' % (sys.argv[0], msg))
-    sys.exit(1)
-
-def to_pxenv_status(errno):
-    return errno & 0xff
-
-def to_errfile(errno):
-    return (errno >> 13) & 0x7ff
-
-def to_posix_errno(errno):
-    return (errno >> 24) & 0x7f
-
-def load_header_file(filename, regexp):
-    defines = {}
-    data = open(filename, 'r').read()
-    for m in regexp.finditer(data):
-        key, val = m.groups()
-        defines[key] = val
-    return defines
-
-def evaluate(defines, expr):
-    pyexpr = ''
-    for token in expr.split():
-        if token in '()':
-            pass
-        elif token.startswith('/*') or token.startswith('//'):
-            break
-        elif token.startswith('0x') or token == '|':
-            pyexpr += token
-        else:
-            if token in defines:
-                pyexpr += '0x%x' % defines[token]
-            else:
-                return -1
-    if not re.match(r'^[0-9a-zA-Z_|]+$', pyexpr):
-        err('invalid expression')
-    return eval(pyexpr)
-
-def build(filenames, regexp, selector):
-    unevaluated = {}
-    for filename in filenames:
-        unevaluated.update(load_header_file(filename, regexp))
-
-    evaluated = {}
-    changed = True
-    while changed:
-        changed = False
-        for key in list(unevaluated.keys()):
-            val = evaluate(evaluated, unevaluated[key])
-            if val != -1:
-                del unevaluated[key]
-                evaluated[key] = val
-                changed = True
-    if unevaluated:
-        err('unable to evaluate all #defines')
-
-    lookup = {}
-    for key, val in evaluated.iteritems():
-        lookup[selector(val)] = key
-    return lookup
-
-print 'pxenv_status =', repr(build(pxenv_status_files, PXENV_STATUS_RE, to_pxenv_status))
-print 'errfile =', repr(build(errfile_files, ERRFILE_RE, to_errfile))
-print 'posix_errno =', repr(build(posix_errno_files, POSIX_ERRNO_RE, to_posix_errno))

contrib/errcode/errcode.php

@@ -1,83 +0,0 @@
-<?
-/*
- * Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-// The path to the errcode.py script.
-$ERRCODE_PATH = './errcode.py';
-?>
-
-<html>
-    <head>
-        <title>iPXE Error Code Lookup</title>
-        <style>
-            body, pre, div, form, p, h2, b, tt {
-                padding: 0;
-                border: 0;
-                margin: 0;
-            }
-            body {
-                padding: 0.5em;
-                width: 750px;
-                font-family: sans-serif;
-            }
-            pre {
-                margin: 0.2em;
-                padding: 0.1em;
-                background-color: #ddd;
-            }
-            form {
-                margin: 0.2em;
-            }
-            div {
-                margin: 0.2em;
-                padding: 0.4em;
-                border: 1px dashed black;
-            }
-        </style>
-    </head>
-    <body>
-<?
-if (!empty($_REQUEST['e']) && preg_match('/^(0x)?[0-9a-f]{8}$/', $_REQUEST['e'])) {
-?>
-        <pre>
-<?
-    system($ERRCODE_PATH . " " . $_REQUEST['e']);
-?>
-        </pre>
-<?
-}
-?>
-        <form action="" method="post">
-            <label for="e">Error code:</label>
-            <input type="text" name="e" id="e" value="0x12345678"></input>
-            <input type="submit" value="Lookup"></input>
-        </form>
-
-        <div>
-            <h2>Hint:</h2>
-            <p>
-            Firefox users can right-click on the <b>Error code</b>
-            text box and select <b>Add a Keyword for this Search...</b>.
-            Set <b>name</b> to <tt>iPXE Error Code Lookup</tt> and
-            <b>keyword</b> to <tt>gxpe</tt>  Then you can look up error
-            codes by typing something like the following in your address
-            bar: <tt>ipxe 0x3c018003</tt>
-            <p>
-        </div>
-    </body>
-</html>

contrib/errcode/errcode.py

@@ -1,78 +0,0 @@
-#!/usr/bin/env python
-# Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of the
-# License, or any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-import sys
-
-try:
-    import errcodedb
-except ImportError:
-    sys.stderr.write('Please run this first: ./build_errcodedb.py >errcodedb.py\n')
-    sys.exit(1)
-
-def to_pxenv_status(errno):
-    return errno & 0xff
-
-def to_uniq(errno):
-    return (errno >> 8) & 0x1f
-
-def to_errfile(errno):
-    return (errno >> 13) & 0x7ff
-
-def to_posix_errno(errno):
-    return (errno >> 24) & 0x7f
-
-def lookup_errno_component(defines, component):
-    if component in defines:
-        return defines[component]
-    else:
-        return '0x%x' % component
-
-class Errcode(object):
-    def __init__(self, errno):
-        self.pxenv_status = to_pxenv_status(errno)
-        self.uniq = to_uniq(errno)
-        self.errfile = to_errfile(errno)
-        self.posix_errno = to_posix_errno(errno)
-
-    def rawstr(self):
-        return 'pxenv_status=0x%x uniq=%d errfile=0x%x posix_errno=0x%x' % (self.pxenv_status, self.uniq, self.errfile, self.posix_errno)
-
-    def prettystr(self):
-        return 'pxenv_status=%s uniq=%d errfile=%s posix_errno=%s' % (
-                lookup_errno_component(errcodedb.pxenv_status, self.pxenv_status),
-                self.uniq,
-                lookup_errno_component(errcodedb.errfile, self.errfile),
-                lookup_errno_component(errcodedb.posix_errno, self.posix_errno)
-                )
-
-    def __str__(self):
-        return self.prettystr()
-
-def usage():
-    sys.stderr.write('usage: %s ERROR_NUMBER\n' % sys.argv[0])
-    sys.exit(1)
-
-if __name__ == '__main__':
-    if len(sys.argv) != 2:
-        usage()
-
-    try:
-        errno = int(sys.argv[1], 16)
-    except ValueError:
-        usage()
-
-    print Errcode(errno)
-    sys.exit(0)

contrib/errcode/gpxebot.py

@@ -1,124 +0,0 @@
-#!/usr/bin/env python
-# Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of the
-# License, or any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-import re
-import socket
-import errcode
-
-HOST = 'irc.freenode.net'
-PORT = 6667
-NICK = 'ipxebot'
-CHAN = '#etherboot'
-NICKSERV_PASSWORD = None
-IDENT = 'ipxebot'
-REALNAME = 'iPXE bot'
-
-ERRCODE_RE = re.compile(r'(errcode|Error)\s+((0x)?[0-9a-fA-F]{8})')
-
-NO_ARGS = -1
-
-handlers = {}
-
-def nick_from_mask(mask):
-    return (mask.find('!') > -1 and mask.split('!', 1)[0]) or mask
-
-def autojoin():
-    del handlers['376']
-    if NICKSERV_PASSWORD:
-        pmsg('nickserv', 'identify %s' % NICKSERV_PASSWORD)
-    if CHAN:
-        cmd('JOIN %s' % CHAN)
-
-def ping(_, arg):
-    cmd('PONG %s' % arg)
-
-def privmsg(_, target, msg):
-    if target == CHAN:
-        replyto = target
-        if msg.find(NICK) == -1:
-            return
-    elif target == NICK:
-        replyto = nick_from_mask(who)
-    m = ERRCODE_RE.search(msg)
-    if m:
-        try:
-            pmsg(replyto, str(errcode.Errcode(int(m.groups()[1], 16))))
-        except ValueError:
-            pass
-    if msg.find('help') > -1:
-        pmsg(replyto, 'I look up iPXE error codes.  Message me like this:')
-        pmsg(replyto, 'errcode 0x12345678  OR  Error 0x12345678')
-
-def add_handler(command, handler, nargs):
-    handlers[command] = (handler, nargs)
-
-def cmd(msg):
-    sock.sendall('%s\r\n' % msg)
-
-def pmsg(target, msg):
-    cmd('PRIVMSG %s :%s' % (target, msg))
-
-def dispatch(args):
-    command = args[0]
-    if command in handlers:
-        h = handlers[command]
-        if h[1] == NO_ARGS:
-            h[0]()
-        elif len(args) == h[1]:
-            h[0](*args)
-
-def parse(line):
-    if line[0] == ':':
-        who, line = line.split(None, 1)
-        who = who[1:]
-    else:
-        who = None
-    args = []
-    while line and line[0] != ':' and line.find(' ') != -1:
-        fields = line.split(None, 1)
-        if len(fields) == 1:
-            fields.append(None)
-        arg, line = fields
-        args.append(arg)
-    if line:
-        if line[0] == ':':
-            args.append(line[1:])
-        else:
-            args.append(line)
-    return who, args
-
-add_handler('376', autojoin, NO_ARGS)
-add_handler('PING', ping, 2)
-add_handler('PRIVMSG', privmsg, 3)
-
-sock = socket.socket()
-sock.connect((HOST, PORT))
-cmd('NICK %s' % NICK)
-cmd('USER %s none none :%s' % (IDENT, REALNAME))
-
-rbuf = ''
-while True:
-    r = sock.recv(4096)
-    if not r:
-        break
-    rbuf += r
-
-    while rbuf.find('\r\n') != -1:
-        line, rbuf = rbuf.split('\r\n', 1)
-        if not line:
-            continue
-        who, args = parse(line)
-        dispatch(args)