/* $NetBSD: str2val.c,v 1.4 2006/09/09 16:22:10 manu Exp $ */
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/* $KAME: str2val.c,v 1.11 2001/08/16 14:37:29 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "config.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "str2val.h"
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#include "gcmalloc.h"
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/*
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* exchange a value to a hex string.
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* must free buffer allocated later.
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*/
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caddr_t
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val2str(buf, mlen)
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const char *buf;
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size_t mlen;
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{
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caddr_t new;
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size_t len = (mlen * 2) + mlen / 8 + 10;
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size_t i, j;
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if ((new = racoon_malloc(len)) == 0) return(0);
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for (i = 0, j = 0; i < mlen; i++) {
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snprintf(&new[j], len - j, "%02x", (u_char)buf[i]);
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j += 2;
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if (i % 8 == 7) {
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new[j++] = ' ';
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new[j] = '\0';
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}
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}
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new[j] = '\0';
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return(new);
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}
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/*
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* exchange a string based "base" to a value.
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*/
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char *
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str2val(str, base, len)
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const char *str;
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int base;
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size_t *len;
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{
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int f;
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size_t i;
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char *dst;
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char *rp;
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const char *p;
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char b[3];
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i = 0;
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for (p = str; *p != '\0'; p++) {
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if (isxdigit((int)*p))
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i++;
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else if (isspace((int)*p))
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;
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else
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return NULL;
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}
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if (i == 0 || (i % 2) != 0)
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return NULL;
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i /= 2;
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if ((dst = racoon_malloc(i)) == NULL)
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return NULL;
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i = 0;
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f = 0;
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for (rp = dst, p = str; *p != '\0'; p++) {
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if (isxdigit((int)*p)) {
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if (!f) {
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b[0] = *p;
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f = 1;
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} else {
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b[1] = *p;
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b[2] = '\0';
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*rp++ = (char)strtol(b, NULL, base);
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i++;
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f = 0;
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}
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}
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}
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*len = i;
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return(dst);
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}
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