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create and verify tags signed by SSH keys This adds a new -s flag to 'got tag' that specifies the signer identity (for example, a key file) of the tagger. The tag object will include a signature that validates each of the tag object headers and the tag message. Verifying these signed tags requires maintaining an allowed signers file which maps signer identities (i.e. the email address of the tagger) to SSH public keys. See ssh-keygen(1) for more details of the allowed signers file. After creating this file and providing the path to it in got.conf(5) using the allowed_signers option, tags may be verified using with 'got tag -V tag_name'. The return code will be non-zero if a signature fails to verify. ok stsp@
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1 /*

2  * Copyright (c) 2022 Josh Rickmar <jrick@zettaport.com>

3  *

4  * Permission to use, copy, modify, and distribute this software for any

5  * purpose with or without fee is hereby granted, provided that the above

6  * copyright notice and this permission notice appear in all copies.

7  *

8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

15  */

17 #include <stdio.h>

19 #include "got_date.h"

21 void

22 got_date_format_gmtoff(char *buf, size_t sz, time_t gmtoff)

23 {

24 	long long h, m;

25 	char sign = '+';

27 	if (gmtoff < 0) {

28 		sign = '-';

29 		gmtoff = -gmtoff;

30 	}

32 	h = (long long)gmtoff / 3600;

33 	m = ((long long)gmtoff - h*3600) / 60;

34 	snprintf(buf, sz, "%c%02lld%02lld", sign, h, m);

35 }