Mercurial > dovecot > core-2.2
view src/lib/hex-binary.c @ 18137:3009a1a6f6d5
global: freshen copyright
Robomatically:
git ls-files | xargs perl -p -i -e 's/(\d+)-201[0-4]/$1-2015/g;s/ (201[0-4]) Dovecot/ $1-2015 Dovecot/'
Happy 2015 everyone!
Signed-off-by: Phil Carmody <phil@dovecot.fi>
author | Phil Carmody <phil@dovecot.fi> |
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date | Mon, 05 Jan 2015 22:20:10 +0200 |
parents | add8c00fb3cc |
children | 0f22db71df7a |
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/* Copyright (c) 2002-2015 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "buffer.h" #include "hex-binary.h" static void binary_to_hex_case(unsigned char *dest, const unsigned char *data, size_t size, bool ucase) { unsigned char *p; char base_char; size_t i; int value; /* @UNSAFE */ base_char = ucase ? 'A' : 'a'; p = dest; for (i = 0; i < size; i++) { value = data[i] >> 4; *p++ = value < 10 ? value + '0' : value - 10 + base_char; value = data[i] & 0x0f; *p++ = value < 10 ? value + '0' : value - 10 + base_char; } } const char *binary_to_hex(const unsigned char *data, size_t size) { unsigned char *dest = t_malloc(size * 2 + 1); binary_to_hex_case(dest, data, size, FALSE); dest[size*2] = '\0'; return (char *)dest; } const char *binary_to_hex_ucase(const unsigned char *data, size_t size) { unsigned char *dest = t_malloc(size * 2 + 1); binary_to_hex_case(dest, data, size, TRUE); dest[size*2] = '\0'; return (char *)dest; } void binary_to_hex_append(string_t *dest, const unsigned char *data, size_t size) { unsigned char *buf; buf = buffer_append_space_unsafe(dest, size * 2); binary_to_hex_case(buf, data, size, FALSE); } int hex_to_binary(const char *data, buffer_t *dest) { int value; while (*data != '\0') { if (*data >= '0' && *data <= '9') value = (*data - '0') << 4; else if (*data >= 'a' && *data <= 'f') value = (*data - 'a' + 10) << 4; else if (*data >= 'A' && *data <= 'F') value = (*data - 'A' + 10) << 4; else return -1; data++; if (*data >= '0' && *data <= '9') value |= *data - '0'; else if (*data >= 'a' && *data <= 'f') value |= *data - 'a' + 10; else if (*data >= 'A' && *data <= 'F') value |= *data - 'A' + 10; else return -1; buffer_append_c(dest, value); data++; } return 0; }