Mercurial > dovecot > original-hg > dovecot-1.2
view src/lib/hex-binary.c @ 9595:166a188f9165 HEAD
mbox: Fields weren't being added to cache file during message saving.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Fri, 30 Jul 2010 16:55:58 +0100 |
parents | 00cd9aacd03c |
children |
line wrap: on
line source
/* Copyright (c) 2002-2010 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "buffer.h" #include "hex-binary.h" static const char * binary_to_hex_case(const unsigned char *data, size_t size, bool ucase) { char *buf, *p, base_char; size_t i; int value; /* @UNSAFE */ base_char = ucase ? 'A' : 'a'; buf = p = t_malloc(size * 2 + 1); 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; } *p = '\0'; return buf; } const char *binary_to_hex(const unsigned char *data, size_t size) { return binary_to_hex_case(data, size, FALSE); } const char *binary_to_hex_ucase(const unsigned char *data, size_t size) { return binary_to_hex_case(data, size, TRUE); } 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; }