src/lxc/error.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <sys/wait.h>
   6
   7 #include "error.h"
   8 #include "log.h"
   9
  10 lxc_log_define(error, lxc);
  11
  12 /*---------------------------------------------------------------------------*/
  13 /* lxc_error_set_and_log
  14  * function is here to convert
  15  * the reported status to an exit code as detailed here:
  16  *
  17  *   0-126       exit code of the application
  18  *   128+n       signal n received by the application
  19  *   255         lxc error
  20  */
  21 extern int lxc_error_set_and_log(int pid, int status)
  22 {
  23         int ret = 0;
  24
  25         if (WIFEXITED(status)) {
  26                 ret = WEXITSTATUS(status);
  27                 if (ret)
  28                         INFO("Child <%d> ended on error (%d)", pid, ret);
  29         }
  30
  31         if (WIFSIGNALED(status)) {
  32                 int signal = WTERMSIG(status);
  33                 INFO("Child <%d> ended on signal (%d)", pid, signal);
  34                 ret = 128 + signal;
  35         }
  36
  37         return ret;
  38 }