/*
* Copyright (c) 2008-2012 Zmanda, Inc. All Rights Reserved.
* Copyright (c) 2013-2016 Carbonite, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Carbonite Inc., 756 N Pastoria Ave
* Sunnyvale, CA 94085, or: http://www.zmanda.com
*/
#ifndef __S3_UTIL_H__
#define __S3_UTIL_H__
#ifdef HAVE_REGEX_H
# ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
# endif
#include <regex.h>
#endif
#include <glib.h>
/*
* Constants
*/
/* number of raw bytes in MD5 hash */
#define S3_MD5_HASH_BYTE_LEN 16
/* length of an MD5 hash encoded as base64 (not including terminating NULL) */
#define S3_MD5_HASH_B64_LEN 25
/* length of an MD5 hash encoded as hexadecimal (not including terminating NULL) */
#define S3_MD5_HASH_HEX_LEN 32
/*
* Types
*/
#ifndef HAVE_REGEX_H
typedef GRegex* regex_t;
typedef gint regoff_t;
typedef struct
{
regoff_t rm_so; /* Byte offset from string's start to substring's start. */
regoff_t rm_eo; /* Byte offset from string's start to substring's end. */
} regmatch_t;
typedef enum
{
REG_NOERROR = 0, /* Success. */
REG_NOMATCH /* Didn't find a match (for regexec). */
} reg_errcode_t;
#endif
/*
* Functions
*/
#ifndef USE_GETTEXT
/* we don't use gettextize, so hack around this ... */
#undef _
#define _(str) (str)
#endif
/*
* Wrapper around regexec to handle programmer errors.
* Only returns if the regexec returns 0 (match) or REG_NOMATCH.
* See regexec(3) documentation for the rest.
*/
int
s3_regexec_wrap(regex_t *regex,
const char *str,
size_t nmatch,
regmatch_t pmatch[],
int eflags);
#ifndef HAVE_AMANDA_H
char*
find_regex_substring(const char* base_string,
const regmatch_t match);
#endif
/*
* Encode bytes using Base-64
*
* @note: GLib 2.12+ has a function for this (g_base64_encode)
* but we support much older versions. gnulib does as well, but its
* hard to use correctly (see its notes).
*
* @param to_enc: The data to encode.
* @returns: A new, null-terminated string or NULL if to_enc is NULL.
*/
gchar*
s3_base64_encode(const GByteArray *to_enc);
/*
* Encode bytes using hexadecimal
*
* @param to_enc: The data to encode.
* @returns: A new, null-terminated string or NULL if to_enc is NULL.
*/
gchar*
s3_hex_encode(const GByteArray *to_enc);
/*
* Compute the MD5 hash of a blob of data.
*
* @param to_hash: The data to compute the hash for.
* @returns: A new GByteArray containing the MD5 hash of data or
* NULL if to_hash is NULL.
*/
GByteArray*
s3_compute_md5_hash(const GByteArray *to_hash);
char *
s3_compute_sha256_hash_ba(const GByteArray *to_hash);
char *
s3_compute_sha256_hash(const unsigned char *to_hash, int len);
char *
s3_uri_encode(const char *s, gboolean encodeSlash);
unsigned char *
EncodeHMACSHA256(
unsigned char* key,
int keylen,
const char* data,
int datalen);
unsigned char *
s3_tohex(unsigned char *s, int len_s);
#endif