/* $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 #include #include #include #include #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(*p)) i++; else if (isspace(*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(*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); }