Fix reading thread name from comm file

diff --git a/NEWS b/NEWS
index e40ce3f..aba4a8d 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -13,7 +13,7 @@ Version 2.15
   12885, 12892, 12907, 12922, 12935, 13007, 13021, 13067, 13068, 13090,
   13092, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13179, 13192,
   13268, 13276, 13291, 13335, 13337, 13344, 13358, 13367, 13439, 13446,
-  13472, 13484, 13506, 13524
+  13472, 13484, 13506, 13515, 13524
 
 * New program pldd to list loaded object of a process
   Implemented by Ulrich Drepper.

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index b622fe7..31177bf 100644 (file)
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,9 @@
+2011-12-21  Ulrich Drepper  <drepper@gmail.com>
+
+       [BZ #13515]
+       * sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np):
+       Correct reading name from file.
+
 2011-12-14  Carlos O'Donell  <carlos@systemhalted.org>
 
        * allocatestack.c (allocate_stack): Return errno on failure.

diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_getname.c b/nptl/sysdeps/unix/sysv/linux/pthread_getname.c
index 6e7786f..2c5ee63 100644 (file)
--- a/nptl/sysdeps/unix/sysv/linux/pthread_getname.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_getname.c
@@ -1,5 +1,5 @@
 /* pthread_getname_np -- Get  thread name.  Linux version
-   Copyright (C) 2010 Free Software Foundation, Inc.
+   Copyright (C) 2010, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -57,6 +57,15 @@ pthread_getname_np (th, buf, len)
   ssize_t n = TEMP_FAILURE_RETRY (read_not_cancel (fd, buf, len));
   if (n < 0)
     res = errno;
+  else
+    {
+      if (buf[n - 1] == '\n')
+       buf[n - 1] = '\0';
+      else if (n == len)
+       res = ERANGE;
+      else
+       buf[n] = '\0';
+    }
 
   close_not_cancel_no_status (fd);