b1dbe5c2bc
Original 'C' progam submitted by Juriy Goloveshkin. A different 'C' program also submitted by dima. I merged and rewrote them to include error handling, use getlogin for user name and only the BSD boilerplate license remained from the original code. We also only allow root to get other user's keys. Review, bikeshed and bdelint(1): myself, kris, dima, markm
58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
/*-
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* Copyright (c) 2000 Warner Losh.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <stdio.h>
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#include <skey.h>
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#include <unistd.h>
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#include <err.h>
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int
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main(int argc, char *argv[])
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{
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struct skey skey;
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char *login;
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char *name;
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int serr;
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login = getlogin();
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if (login == NULL)
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errx(1, "Cannot find login name");
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if (getuid() != 0 && argc > 1 && strcmp(login, argv[1]) != 0)
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errx(1, "Only superuser may get another user's keys");
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name = argc > 1 ? argv[1] : login;
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serr = skeylookup(&skey, name);
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if (serr == -1)
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err(1, "skeylookup os failure");
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fclose(skey.keyfile);
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if (serr != 0)
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errx(1, "skeylookup: user %s not found", name);
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printf("%d %s\n", skey.n - 1, skey.seed);
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return (0);
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}
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