libbb: introduce and use xrename and rename_or_warn.

2 files changed, 20 insertions, 11 deletions

diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c
index 98339c9..1567d89 100644
--- a/libbb/vfork_daemon_rexec.c
+++ b/libbb/vfork_daemon_rexec.c
@@ -98,11 +98,6 @@ int wait4pid(int pid)
 	if (WIFSIGNALED(status))
 		return WTERMSIG(status) + 1000;
 	return 0;
-	if (WIFEXITED(status))
-		return WEXITSTATUS(status);
-	if (WIFSIGNALED(status))
-		return WTERMSIG(status) + 1000;
-	return 0;
 }
 
 #if ENABLE_FEATURE_PREFER_APPLETS
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 8dd414d..b4c059f 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -146,18 +146,32 @@ int open_or_warn(const char *pathname, int flags)
 	return open3_or_warn(pathname, flags, 0666);
 }
 
-void xpipe(int filedes[2])
-{
-	if (pipe(filedes))
-		bb_perror_msg_and_die("can't create pipe");
-}
-
 void xunlink(const char *pathname)
 {
 	if (unlink(pathname))
 		bb_perror_msg_and_die("can't remove file '%s'", pathname);
 }
 
+void xrename(const char *oldpath, const char *newpath)
+{
+	if (rename(oldpath, newpath))
+		bb_perror_msg_and_die("can't move '%s' to '%s'", oldpath, newpath);
+}
+
+int rename_or_warn(const char *oldpath, const char *newpath)
+{
+	int n = rename(oldpath, newpath);
+	if (n)
+		bb_perror_msg("can't move '%s' to '%s'", oldpath, newpath);
+	return n;
+}
+
+void xpipe(int filedes[2])
+{
+	if (pipe(filedes))
+		bb_perror_msg_and_die("can't create pipe");
+}
+
 // Turn on nonblocking I/O on a fd
 int ndelay_on(int fd)
 {