diff options
Diffstat (limited to 'contrib/syslinux/syslinux-4.03/com32/libutil/unbase64.c')
-rw-r--r-- | contrib/syslinux/syslinux-4.03/com32/libutil/unbase64.c | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/contrib/syslinux/syslinux-4.03/com32/libutil/unbase64.c b/contrib/syslinux/syslinux-4.03/com32/libutil/unbase64.c deleted file mode 100644 index 3cbf3fb..0000000 --- a/contrib/syslinux/syslinux-4.03/com32/libutil/unbase64.c +++ /dev/null @@ -1,76 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 2005-2008 H. Peter Anvin - 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", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * ----------------------------------------------------------------------- */ - -/* - * unbase64.c - * - * Convert a string in base64 format to a byte array. - */ - -#include <string.h> -#include <base64.h> - -static const unsigned char _base64chars[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - -size_t unbase64(unsigned char *buffer, size_t bufsiz, const char *txt) -{ - unsigned int bits = 0; - int nbits = 0; - char base64tbl[256]; - int i; - char v; - size_t nbytes = 0; - - memset(base64tbl, -1, sizeof base64tbl); - - for (i = 0; _base64chars[i]; i++) { - base64tbl[_base64chars[i]] = i; - } - - /* Also support filesystem safe alternate base64 encoding */ - base64tbl['.'] = 62; - base64tbl['-'] = 62; - base64tbl['_'] = 63; - - while (*txt) { - if ((v = base64tbl[(unsigned char)*txt]) >= 0) { - bits <<= 6; - bits += v; - nbits += 6; - if (nbits >= 8) { - if (nbytes < bufsiz) - *buffer++ = (bits >> (nbits - 8)); - nbytes++; - nbits -= 8; - } - } - txt++; - } - - return nbytes; -} |