1 files changed, 22 insertions, 0 deletions

diff --git a/libbb/xfuncs_printf.c b/libbb/xfuncs_printf.c
index 73488908d..e9222f690 100644
--- a/libbb/xfuncs_printf.c
+++ b/libbb/xfuncs_printf.c
@@ -390,6 +390,12 @@ void FAST_FUNC xchdir(const char *path)
                 bb_perror_msg_and_die("can't change directory to '%s'", path);
 }
 
+void FAST_FUNC xfchdir(int fd)
+{
+        if (fchdir(fd))
+                bb_perror_msg_and_die("fchdir");
+}
+
 void FAST_FUNC xchroot(const char *path)
 {
         if (chroot(path))
@@ -653,3 +659,19 @@ pid_t FAST_FUNC xfork(void)
         return pid;
 }
 #endif
+
+void FAST_FUNC xvfork_parent_waits_and_exits(void)
+{
+        pid_t pid;
+
+        fflush_all();
+        pid = xvfork();
+        if (pid > 0) {
+                /* Parent */
+                int exit_status = wait_for_exitstatus(pid);
+                if (WIFSIGNALED(exit_status))
+                        kill_myself_with_sig(WTERMSIG(exit_status));
+                _exit(WEXITSTATUS(exit_status));
+        }
+        /* Child continues */
+}