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authorUlrich Drepper <drepper@redhat.com>2001-04-23 09:04:59 +0000
committerUlrich Drepper <drepper@redhat.com>2001-04-23 09:04:59 +0000
commit92c2e46b9663794c4585bf65f5e53d61638227aa (patch)
treea6bea2e4391c76ebb04f68dc4d1b2380bb1cbac6 /sysdeps/posix/pathconf.c
parent77e4dc62b0b8aab2ed44866aee00b4063ffb8ce8 (diff)
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(__pathconf): For _PC_ASYNC_IO test whether named file is a regular file or a block device.
Diffstat (limited to 'sysdeps/posix/pathconf.c')
-rw-r--r--sysdeps/posix/pathconf.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/sysdeps/posix/pathconf.c b/sysdeps/posix/pathconf.c
index 4ce5c0d1d7..63a3a9c511 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