get_init_pid moved to lxc/commands.c

as will be used later on in other patches.

Signed-off-by: Michel Normand <normand@fr.ibm.com>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>

src/lxc/commands.c

@@ -111,6 +111,34 @@ out_close:
 	goto out;
 }
 
+pid_t get_init_pid(const char *name)
+{
+	struct lxc_command command = {
+		.request = { .type = LXC_COMMAND_PID },
+	};
+
+	int ret, stopped = 0;
+
+	ret = lxc_command(name, &command, &stopped);
+	if (ret < 0 && stopped) {
+		ERROR("'%s' is not running", name);
+		return -1;
+	}
+
+	if (ret < 0) {
+		ERROR("failed to send command");
+		return -1;
+	}
+
+	if (command.answer.ret) {
+		ERROR("failed to retrieve the init pid: %s",
+		      strerror(-command.answer.ret));
+		return -1;
+	}
+
+	return command.answer.pid;
+}
+
 extern void lxc_console_remove_fd(int, struct lxc_tty_info *);
 extern int  lxc_console_callback(int, struct lxc_request *, struct lxc_handler *);
 extern int  lxc_stop_callback(int, struct lxc_request *, struct lxc_handler *);

src/lxc/commands.h

@@ -47,6 +47,7 @@ struct lxc_command {
 	struct lxc_answer answer;
 };
 
+extern pid_t get_init_pid(const char *name);
 extern int lxc_command(const char *name, struct lxc_command *command,
 			int *stopped);
 

src/lxc/lxc_attach.c

@@ -55,34 +55,6 @@ Options :\n\
 	.checker  = NULL,
 };
 
-pid_t get_init_pid(const char *name)
-{
-	struct lxc_command command = {
-		.request = { .type = LXC_COMMAND_PID },
-	};
-
-	int ret, stopped = 0;
-
-	ret = lxc_command(name, &command, &stopped);
-	if (ret < 0 && stopped) {
-		ERROR("'%s' is not running", name);
-		return -1;
-	}
-
-	if (ret < 0) {
-		ERROR("failed to send command");
-		return -1;
-	}
-
-	if (command.answer.ret) {
-		ERROR("failed to retrieve the init pid: %s",
-		      strerror(-command.answer.ret));
-		return -1;
-	}
-
-	return command.answer.pid;
-}
-
 int main(int argc, char *argv[], char *envp[])
 {
 	int ret;