From 84cfd1092d1087a9a4d9f13c2fa2440ecd73f5fc Mon Sep 17 00:00:00 2001
From: Elliott Hughes <enh@google.com>
Date: Tue, 29 Jul 2014 11:05:18 -0700
Subject: [PATCH] Fix "ptsname is not thread-safe; use ptsname_r instead" build
 break.

Change-Id: I8fdca8e85056e99e943bdcf93a48574d76addcdc
---
 logwrapper/logwrap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/logwrapper/logwrap.c b/logwrapper/logwrap.c
index d47c9b515..3a6276e0f 100644
--- a/logwrapper/logwrap.c
+++ b/logwrapper/logwrap.c
@@ -477,7 +477,6 @@ int android_fork_execvp_ext(int argc, char* argv[], int *status, bool ignore_int
     pid_t pid;
     int parent_ptty;
     int child_ptty;
-    char *child_devname = NULL;
     struct sigaction intact;
     struct sigaction quitact;
     sigset_t blockset;
@@ -498,8 +497,9 @@ int android_fork_execvp_ext(int argc, char* argv[], int *status, bool ignore_int
         goto err_open;
     }
 
+    char child_devname[64];
     if (grantpt(parent_ptty) || unlockpt(parent_ptty) ||
-            ((child_devname = (char*)ptsname(parent_ptty)) == 0)) {
+            ptsname_r(parent_ptty, child_devname, sizeof(child_devname)) != 0) {
         ERROR("Problem with /dev/ptmx\n");
         rc = -1;
         goto err_ptty;