uuid.h File Reference

#include <stdint.h>
#include <sys/types.h>
#include <uuid/uuid.h>
#include "class.h"
#include "commons.h"

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Typedefs
typedef char	UuidString[37]

Functions
	CLASS (Uuid)
Uuid	uuidVersion1 ()
Uuid	uuidVersion3 (const unsigned char *, size_t, Uuid)
Uuid	uuidVersion5 (const unsigned char *, size_t, Uuid)
void	uuidUnparse (Uuid, UuidString)
Uuid	uuidParse (const UuidString)
int	uuidCompare (Uuid, Uuid)

Variables
Uuid	uuidZero

Detailed Description

ways to create uuid variant 5. For uuid of variant 1 I use the implementation delivered with the core utils. But this is wrapped in here, so that the rest of the code can use only this implementation...this additionally has the advantage that we can implement version 1 here too for systems where the coreutils implementation is not available.

Author

Georg Hopp

Copyright

Copyright © 2012 Georg Hopp

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 3 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, see http://www.gnu.org/licenses/.

Definition in file uuid.h.

Typedef Documentation

typedef char UuidString[37]

Definition at line 40 of file uuid.h.

Function Documentation

CLASS

(

Uuid

)

Definition at line 42 of file uuid.h.

            {
    union {
        uuid_t value;
        struct {
            uint32_t      time_low;
            uint16_t      time_mid;
            uint16_t      time_hi_version;
            uint8_t       clk_seq_hi_res;
            uint8_t       clk_seq_low;
            unsigned char node[6];
        } elements;
    } uuid;
};

int uuidCompare	(	Uuid	,
		Uuid
	)

Definition at line 30 of file compare.c.

Referenced by controllerSignupCreate(), controllerUserCreate(), controllerUserUpdate(), and main().

{
    return uuid_compare((uuid1->uuid).value, (uuid2->uuid).value);
}

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Uuid uuidParse

(

const UuidString

)

Definition at line 30 of file uuid/parse.c.

Referenced by applicationCtor(), controllerUserRead(), and main().

{
    Uuid uuid = new(Uuid);
    uuid_parse(uuid_str, (uuid->uuid).value);

    return uuid;
}

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void uuidUnparse	(	Uuid	,
		UuidString
	)

Definition at line 30 of file unparse.c.

Referenced by main().

{
    uuid_unparse((uuid->uuid).value, uuid_str);
}

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Uuid uuidVersion1

(

)

Definition at line 30 of file version1.c.

Referenced by main().

{
    Uuid uuid = new(Uuid);
    uuid_generate((uuid->uuid).value);

    return uuid;
}

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Uuid uuidVersion3	(	const unsigned char *	,
		size_t	,
		Uuid
	)

Definition at line 39 of file version3.c.

References _uuidFormat3or5(), and clone.

Referenced by main(), and userIndexUuid().

{
    MD5_CTX       ctx;
    unsigned char hash[16];
    Uuid          net_nsid = clone(nsid);
    Uuid          uuid     = new(Uuid);

    /*
     * put the namespace id into network byte order.
     */
    (net_nsid->uuid).elements.time_low =
        htonl((net_nsid->uuid).elements.time_low);
    (net_nsid->uuid).elements.time_mid =
        htons((net_nsid->uuid).elements.time_mid);
    (net_nsid->uuid).elements.time_hi_version =
        htons((net_nsid->uuid).elements.time_hi_version);

    /*
     * generate the MD5
     */
    MD5_Init(&ctx);
    MD5_Update(&ctx, (net_nsid->uuid).value, 16);
    MD5_Update(&ctx, name, nname);
    MD5_Final(hash, &ctx);

    delete(net_nsid);

    _uuidFormat3or5(uuid, hash, 3);

    return uuid;
}

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Uuid uuidVersion5	(	const unsigned char *	,
		size_t	,
		Uuid
	)

Definition at line 39 of file version5.c.

References _uuidFormat3or5(), and clone.

Referenced by main().

{
    SHA_CTX       ctx;
    unsigned char hash[20];
    Uuid          net_nsid = clone(nsid);
    Uuid          uuid     = new(Uuid);

    /*
     * put the namespace id into network byte order.
     */
    (net_nsid->uuid).elements.time_low =
        htonl((net_nsid->uuid).elements.time_low);
    (net_nsid->uuid).elements.time_mid =
        htons((net_nsid->uuid).elements.time_mid);
    (net_nsid->uuid).elements.time_hi_version =
        htons((net_nsid->uuid).elements.time_hi_version);

    /*
     * generate the MD5
     */
    SHA1_Init(&ctx);
    SHA1_Update(&ctx, (net_nsid->uuid).value, 16);
    SHA1_Update(&ctx, name, nname);
    SHA1_Final(hash, &ctx);

    delete(net_nsid);

    _uuidFormat3or5(uuid, hash, 5);

    return uuid;
}

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Variable Documentation

Uuid uuidZero

Referenced by applicationCreateUser(), applicationUpdateUser(), controllerSignupCreate(), controllerUserCreate(), controllerUserUpdate(), and main().