From: Ulrich Drepper <drepper@redhat.com>
Date: Mon, 23 Apr 2001 09:04:59 +0000 (+0000)
Subject: (__pathconf): For _PC_ASYNC_IO test whether named file is a regular file or a block... 
X-Git-Tag: upstream/2.30~23163
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=92c2e46b9663794c4585bf65f5e53d61638227aa;p=external%2Fglibc.git

(__pathconf): For _PC_ASYNC_IO test whether named file is a regular file or a block device.
---

diff --git a/sysdeps/posix/pathconf.c b/sysdeps/posix/pathconf.c
index 4ce5c0d..63a3a9c 100644
--- a/sysdeps/posix/pathconf.c
+++ b/sysdeps/posix/pathconf.c
@@ -21,6 +21,7 @@
 #include <unistd.h>
 #include <limits.h>
 #include <fcntl.h>
+#include <sys/stat.h>
 #include <sys/statfs.h>
 #include <sys/statvfs.h>
 
@@ -138,7 +139,16 @@ __pathconf (const char *path, int name)
 
     case _PC_ASYNC_IO:
 #ifdef	_POSIX_ASYNC_IO
-      return _POSIX_ASYNC_IO;
+      {
+	/* AIO is only allowed on regular files and block devices.  */
+	struct stat64 st;
+
+	if (__xstat64 (_STAT_VER, path, &st) < 0
+	    || (! S_ISREG (st.st_mode) && ! S_ISBLK (st.st_mode)))
+	  return -1;
+	else
+	  return 1;
+      }
 #else
       return -1;
 #endif