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/*
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* Copyright (c) 2004, 2005 Darren Tucker (dtucker at zip com au).
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <unistd.h>
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int
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setresgid(gid_t rgid, gid_t egid, gid_t sgid)
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{
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/* this is the only configuration tested */
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if (rgid != egid || egid != sgid)
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return -1;
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# if defined(HAVE_SETREGID) && !defined(BROKEN_SETREGID)
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if (setregid(rgid, egid) == -1)
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return -1;
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# else
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if (setegid(egid) == -1)
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return -1;
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if (setgid(rgid)) == -1)
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return -1;
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# endif
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return 0;
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}
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