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Annotation of libaitwww/src/tools.c, revision 1.1

1.1     ! misho       1: /*************************************************************************
        !             2: * (C) 2012 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
        !             3: *  by Michael Pounov <misho@elwix.org>
        !             4: *
        !             5: * $Author: misho $
        !             6: * $Id: array.c,v 1.7 2012/02/02 21:32:42 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: }