github.com/rkt/rkt@v1.30.1-0.20200224141603-171c416fac02/stage1/diagnostic/diagnostic.c (about)

     1  // Copyright 2014-2016 The rkt Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  #include <unistd.h>
    16  
    17  #include "diagnostic-util.h"
    18  
    19  int main(int argc, char *argv[])
    20  {
    21  	const char *root, *exe;
    22  	exit_if(argc != 3, "Usage: %s /path/to/root /to/exe", argv[0]);
    23  
    24  	root = argv[1];
    25  	exe = argv[2];
    26  
    27  	pexit_if(chroot(root) == -1, "Chroot \"%s\" failed", root);
    28  	diag(exe);
    29  
    30  	return 0;
    31  }