revert last two commits. vfork cannot be used in subroutine,

it trashes stack on return

3 files changed, 6 insertions, 31 deletions

diff --git a/libbb/Kbuild b/libbb/Kbuild
index 5ace87c..5cbecd5 100644
--- a/libbb/Kbuild
+++ b/libbb/Kbuild
@@ -109,7 +109,6 @@ lib-y += xfunc_die.o
 lib-y += xgetcwd.o
 lib-y += xgethostbyname.o
 lib-y += xreadlink.o
-lib-y += xvfork.o
 
 # conditionally compiled objects:
 lib-$(CONFIG_FEATURE_MOUNT_LOOP) += loop.o
diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c
index 989e9b8..37d4c27 100644
--- a/libbb/vfork_daemon_rexec.c
+++ b/libbb/vfork_daemon_rexec.c
@@ -226,7 +226,9 @@ void FAST_FUNC forkexit_or_rexec(char **argv)
 	if (re_execed)
 		return;
 
-	pid = xvfork();
+	pid = vfork();
+	if (pid < 0) /* wtf? */
+		bb_perror_msg_and_die("vfork");
 	if (pid) /* parent */
 		exit(EXIT_SUCCESS);
 	/* child - re-exec ourself */
@@ -238,7 +240,9 @@ void FAST_FUNC forkexit_or_rexec(char **argv)
 void FAST_FUNC forkexit_or_rexec(void)
 {
 	pid_t pid;
-	pid = xfork();
+	pid = fork();
+	if (pid < 0) /* wtf? */
+		bb_perror_msg_and_die("fork");
 	if (pid) /* parent */
 		exit(EXIT_SUCCESS);
 	/* child */
diff --git a/libbb/xvfork.c b/libbb/xvfork.c
deleted file mode 100644
index 3fbd0c1..0000000
--- a/libbb/xvfork.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Utility routines.
- *
- * Copyright (C) 2007 Denys Vlasenko
- *
- * Licensed under GPL version 2, see file LICENSE in this tarball for details.
- */
-
-#include "libbb.h"
-
-pid_t FAST_FUNC xvfork(void)
-{
-	pid_t pid = vfork();
-	if (pid < 0)
-		bb_perror_msg_and_die("vfork");
-	return pid;
-}
-
-#if BB_MMU
-pid_t FAST_FUNC xfork(void)
-{
-	pid_t pid = fork();
-	if (pid < 0)
-		bb_perror_msg_and_die("vfork" + 1);
-	return pid;
-}
-#endif