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