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Diffstat (limited to 'package/ead/src/tinysrp/t_conv.c')
| -rw-r--r-- | package/ead/src/tinysrp/t_conv.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/package/ead/src/tinysrp/t_conv.c b/package/ead/src/tinysrp/t_conv.c deleted file mode 100644 index d3fe246c41..0000000000 --- a/package/ead/src/tinysrp/t_conv.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Copyright (c) 1997-1999 The Stanford SRP Authentication Project - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL, - * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER - * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF - * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT - * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * In addition, the following conditions apply: - * - * 1. Any software that incorporates the SRP authentication technology - * must display the following acknowlegment: - * "This product uses the 'Secure Remote Password' cryptographic - * authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)." - * - * 2. Any software that incorporates all or part of the SRP distribution - * itself must also display the following acknowledgment: - * "This product includes software developed by Tom Wu and Eugene - * Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)." - * - * 3. Redistributions in source or binary form must retain an intact copy - * of this copyright notice and list of conditions. - */ - -/*#define _POSIX_SOURCE*/ -#include <stdio.h> -#include "t_defines.h" - -static int -hexDigitToInt(c) - char c; -{ - if(c >= '0' && c <= '9') - return c - '0'; - else if(c >= 'a' && c <= 'f') - return c - 'a' + 10; - else if(c >= 'A' && c <= 'F') - return c - 'A' + 10; - else - return 0; -} - -/* - * Convert a hex string to a string of bytes; return size of dst - */ -_TYPE( int ) -t_fromhex(dst, src) - register char *dst, *src; -{ - register char *chp = dst; - register unsigned size = strlen(src); - - /* FIXME: handle whitespace and non-hex digits by setting size and src - appropriately. */ - - if(size % 2 == 1) { - *chp++ = hexDigitToInt(*src++); - --size; - } - while(size > 0) { - *chp++ = (hexDigitToInt(*src) << 4) | hexDigitToInt(*(src + 1)); - src += 2; - size -= 2; - } - return chp - dst; -} - -/* - * Convert a string of bytes to their hex representation - */ -_TYPE( char * ) -t_tohex(dst, src, size) - register char *dst, *src; - register unsigned size; -{ - int notleading = 0; - - register char *chp = dst; - if (size != 0) do { - if(notleading || *src != '\0') { - notleading = 1; - sprintf(chp, "%.2x", * (unsigned char *) src); - chp += 2; - } - ++src; - } while (--size != 0); - return dst; -} - -static char b64table[] = - "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz./"; - -/* - * Convert a base64 string into raw byte array representation. - */ -_TYPE( int ) -t_fromb64(dst, src) - register char *dst, *src; -{ - unsigned char *a; - char *loc; - int i, j; - unsigned int size; - - while(*src && (*src == ' ' || *src == '\t' || *src == '\n')) - ++src; - size = strlen(src); - - a = malloc((size + 1) * sizeof(unsigned char)); - if(a == (unsigned char *) 0) - return -1; - - i = 0; - while(i < size) { - loc = strchr(b64table, src[i]); - if(loc == (char *) 0) - break; - else - a[i] = loc - b64table; - ++i; - } - size = i; - - i = size - 1; - j = size; - while(1) { - a[j] = a[i]; - if(--i < 0) - break; - a[j] |= (a[i] & 3) << 6; - --j; - a[j] = (unsigned char) ((a[i] & 0x3c) >> 2); - if(--i < 0) - break; - a[j] |= (a[i] & 0xf) << 4; - --j; - a[j] = (unsigned char) ((a[i] & 0x30) >> 4); - if(--i < 0) - break; - a[j] |= (a[i] << 2); - - a[--j] = 0; - if(--i < 0) - break; - } - - while(a[j] == 0 && j <= size) - ++j; - - memcpy(dst, a + j, size - j + 1); - free(a); - return size - j + 1; -} - -/* - * Convert a raw byte string into a null-terminated base64 ASCII string. - */ -_TYPE( char * ) -t_tob64(dst, src, size) - register char *dst, *src; - register unsigned size; -{ - int c, pos = size % 3; - unsigned char b0 = 0, b1 = 0, b2 = 0, notleading = 0; - char *olddst = dst; - - switch(pos) { - case 1: - b2 = src[0]; - break; - case 2: - b1 = src[0]; - b2 = src[1]; - break; - } - - while(1) { - c = (b0 & 0xfc) >> 2; - if(notleading || c != 0) { - *dst++ = b64table[c]; - notleading = 1; - } - c = ((b0 & 3) << 4) | ((b1 & 0xf0) >> 4); - if(notleading || c != 0) { - *dst++ = b64table[c]; - notleading = 1; - } - c = ((b1 & 0xf) << 2) | ((b2 & 0xc0) >> 6); - if(notleading || c != 0) { - *dst++ = b64table[c]; - notleading = 1; - } - c = b2 & 0x3f; - if(notleading || c != 0) { - *dst++ = b64table[c]; - notleading = 1; - } - if(pos >= size) - break; - else { - b0 = src[pos++]; - b1 = src[pos++]; - b2 = src[pos++]; - } - } - - *dst++ = '\0'; - return olddst; -} |