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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-03-24 15:47:13 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2020-03-25 09:50:45 -0300
commit1c17100c43c0913ec94f3bcc966bf3792236c690 (patch)
tree397c163b2ed16e5cbe6b282b646568fa7e1c3bf8 /support
parent5a5a3a3234bc220a5192d620e0cbc5360da46f14 (diff)
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support/shell-container.c: Add builtin kill
No options supported.

Reviewed-by: DJ Delorie <dj@redhat.com>
Diffstat (limited to 'support')
-rw-r--r--support/shell-container.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/support/shell-container.c b/support/shell-container.c
index 2f7405dc5f..fb54d88551 100644
--- a/support/shell-container.c
+++ b/support/shell-container.c
@@ -147,6 +147,25 @@ exit_func (char **argv)
   return 0;
 }
 
+/* Emulate the "/bin/kill" command.  Options are ignored.  */
+static int
+kill_func (char **argv)
+{
+  int signum = SIGTERM;
+  int i;
+
+  for (i = 0; argv[i]; i++)
+    {
+      pid_t pid;
+      if (strcmp (argv[i], "$$") == 0)
+	pid = getpid ();
+      else
+	pid = atoi (argv[i]);
+      kill (pid, signum);
+    }
+  return 0;
+}
+
 /* This is a list of all the built-in commands we understand.  */
 static struct {
   const char *name;
@@ -156,6 +175,7 @@ static struct {
   { "echo", echo_func },
   { "cp", copy_func },
   { "exit", exit_func },
+  { "kill", kill_func },
   { NULL, NULL }
 };
 
@@ -264,6 +284,11 @@ run_command_array (char **argv)
       if (rv)
 	exit (rv);
     }
+  else if (WIFSIGNALED (status))
+    {
+      int sig = WTERMSIG (status);
+      raise (sig);
+    }
   else
     exit (1);
 }