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Sources/procd/container.h

  1 /*
  2  * Copyright (C) 2019 Paul Spooren <mail@aparcar.de>
  3  *
  4  * This program is free software; you can redistribute it and/or modify
  5  * it under the terms of the GNU Lesser General Public License version 2.1
  6  * as published by the Free Software Foundation
  7  *
  8  * This program is distributed in the hope that it will be useful,
  9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 11  * GNU General Public License for more details.
 12  */
 13 
 14 #ifndef __CONTAINER_H
 15 #define __CONTAINER_H
 16 
 17 #include <stdlib.h>
 18 #include <stdbool.h>
 19 #include <sys/stat.h>
 20 
 21 static inline bool is_container() {
 22         struct stat s;
 23         int r = stat("/.dockerenv", &s);
 24         return !!getenv("container") || r == 0;
 25 }
 26 
 27 #endif
 28 

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