From 42766b3db2c895be02404dc89995412e841f05b7 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Tue, 24 Mar 2020 15:47:13 -0300 Subject: [PATCH] support/shell-container.c: Add builtin kill No options supported. Reviewed-by: DJ Delorie (cherry picked from commit 1c17100c43c0913ec94f3bcc966bf3792236c690) --- support/shell-container.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/support/shell-container.c b/support/shell-container.c index 99a0ff7ca59..51b01dce0d9 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); } -- 2.47.2