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version 1.0

    1: /*************************************************************************
    2: * (C) 2012 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
    3: *  by Michael Pounov <misho@elwix.org>
    4: *
    5: * $Author: misho $
    6: * $Id: tools.c,v 1.2 2012/03/10 00:26:49 misho Exp $
    7: *
    8: **************************************************************************
    9: The ELWIX and AITNET software is distributed under the following
   10: terms:
   11: 
   12: All of the documentation and software included in the ELWIX and AITNET
   13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   14: 
   15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
   16: 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
   17: 
   18: Redistribution and use in source and binary forms, with or without
   19: modification, are permitted provided that the following conditions
   20: are met:
   21: 1. Redistributions of source code must retain the above copyright
   22:    notice, this list of conditions and the following disclaimer.
   23: 2. Redistributions in binary form must reproduce the above copyright
   24:    notice, this list of conditions and the following disclaimer in the
   25:    documentation and/or other materials provided with the distribution.
   26: 3. All advertising materials mentioning features or use of this software
   27:    must display the following acknowledgement:
   28: This product includes software developed by Michael Pounov <misho@elwix.org>
   29: ELWIX - Embedded LightWeight unIX and its contributors.
   30: 4. Neither the name of AITNET nor the names of its contributors
   31:    may be used to endorse or promote products derived from this software
   32:    without specific prior written permission.
   33: 
   34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
   35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44: SUCH DAMAGE.
   45: */
   46: #include "global.h"
   47: #include "tools.h"
   48: 
   49: 
   50: int
   51: www_cmp(const char *ct, const char *s)
   52: {
   53: 	char *sc;
   54: 
   55: 	assert(ct && s);
   56: 
   57: 	while (isspace(*ct))
   58: 		ct++;
   59: 
   60: 	if (!(sc = strchr(ct, ';')))
   61: 		sc = strchr(ct, '\x0');
   62: 	while (isspace(*(sc - 1)))
   63: 		sc--;
   64: 
   65: 	if (strlen(s) != sc - ct)
   66: 		return -1;
   67: 	return strncasecmp(ct, s, sc - ct);
   68: }
   69: 
   70: int
   71: www_cmptype(const char *ct, const char *type)
   72: {
   73: 	char *sl;
   74: 
   75: 	assert(ct && type);
   76: 
   77: 	while (isspace(*ct))
   78: 		ct++;
   79: 
   80: 	if (!(sl = strchr(ct, '/')))
   81: 		return -1;
   82: 
   83: 	if (strlen(type) != sl - ct)
   84: 		return 1;
   85: 	return strncasecmp(ct, type, sl - ct);
   86: }
   87: 
   88: char *
   89: www_getpair(char ** __restrict str, const char *delim)
   90: {
   91: 	char *tr, *s = NULL;
   92: 	int cx;
   93: 
   94: 	assert(str && *str && delim);
   95: 
   96: 	cx = strcspn(*str, delim);
   97: 	tr = *str + cx;
   98: 
   99: 	s = malloc(cx + 1);
  100: 	if (!s) {
  101: 		LOGERR;
  102: 		return NULL;
  103: 	} else {
  104: 		strncpy(s, *str, cx);
  105: 		s[cx] = 0;
  106: 	}
  107: 
  108: 	*str = tr;
  109: 	if (**str)
  110: 		(*str)++;
  111: 
  112: 	return s;
  113: }
  114: 
  115: inline char
  116: www_x2c(const char *str)
  117: {
  118: 	register char digit;
  119: 
  120: 	assert(str);
  121: 
  122: 	digit = (str[0] >= 'A' ? ((str[0] & 0xdf) - 'A') + 10 : (str[0] - '0'));
  123: 	digit *= 16;
  124: 	digit += (str[1] >= 'A' ? ((str[1] & 0xdf) - 'A') + 10 : (str[1] - '0'));
  125: 
  126: 	return digit;
  127: }
  128: 
  129: inline void
  130: www_unescape(char * __restrict str)
  131: {
  132: 	register int i, j;
  133: 
  134: 	assert(str);
  135: 
  136: 	for (i = j = 0; str[j]; i++, j++) {
  137: 		str[i] = str[j];
  138: 
  139: 		if (str[j] == '+')
  140: 			str[i] = ' ';
  141: 		else if (str[j] == '%') {
  142: 			str[i] = www_x2c(&str[j + 1]);
  143: 			j += 2;
  144: 		}
  145: 	}
  146: 
  147: 	str[i] = 0;
  148: }