68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2013.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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grent.cpp
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Group database.
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*******************************************************************************/
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#include <sys/types.h>
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#include <grp.h>
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#include <stdlib.h>
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#include <string.h>
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const gid_t ROOT_GID = 0;
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const char* const ROOT_NAME = "root";
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static struct group global_group;
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static struct group* fill_group(struct group* gr)
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{
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const char* env_groupname = getenv("GROUPNAME");
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strcpy(gr->gr_name, env_groupname ? env_groupname : ROOT_NAME);
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const char* env_groupid = getenv("GROUPID");
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gr->gr_gid = env_groupid ? atoi(env_groupid) : ROOT_GID;
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return gr;
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}
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static gid_t lookup_groupname(const char* name)
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{
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const char* env_groupname = getenv("GROUPNAME");
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const char* my_groupname = env_groupname ? env_groupname : ROOT_NAME;
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if ( !strcmp(my_groupname, name) )
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{
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const char* env_groupid = getenv("GROUPID");
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if ( env_groupid )
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return atoi(env_groupid);
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}
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return 1;
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}
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extern "C" struct group* getgrgid(gid_t gid)
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{
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(void) gid;
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return fill_group(&global_group);
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}
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extern "C" struct group* getgrnam(const char* name)
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{
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return getgrgid(lookup_groupname(name));
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}
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