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66 lines
1.8 KiB
66 lines
1.8 KiB
/*
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The MIT License (MIT)
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Copyright (c) 2015 Antonio SJ Musumeci <trapexit@spawn.link>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef __GIDCACHE_HPP__
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#define __GIDCACHE_HPP__
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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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#endif
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