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55 lines
1.4 KiB
55 lines
1.4 KiB
/*
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Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
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Permission to use, copy, modify, and/or 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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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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#pragma once
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#include <sys/types.h>
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#include <unistd.h>
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#define MAXGIDS 32
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#define MAXRECS 256
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struct gid_t_rec
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{
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uid_t uid;
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int size;
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gid_t gids[MAXGIDS];
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bool
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operator<(const struct gid_t_rec &b) const;
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};
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struct gid_t_cache
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{
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public:
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size_t size;
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gid_t_rec recs[MAXRECS];
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private:
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gid_t_rec * begin(void);
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gid_t_rec * end(void);
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gid_t_rec * allocrec(void);
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gid_t_rec * lower_bound(gid_t_rec *begin,
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gid_t_rec *end,
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const uid_t uid);
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gid_t_rec * cache(const uid_t uid,
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const gid_t gid);
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public:
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int
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initgroups(const uid_t uid,
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const gid_t gid);
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};
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