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authorAndreas Schwab <schwab@linux-m68k.org>2018-01-28 18:48:04 +0100
committerAndreas Schwab <schwab@linux-m68k.org>2018-01-29 22:21:21 +0100
commit9a1793289b08339660985cb2baada60debc70bf2 (patch)
treea934b7ecc9cab380428be0eea4939083d3c57f4f /sysdeps/posix/fpathconf.c
parente01e0ddc42e5909af0409d28bc4fd52ebfdbc7db (diff)
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Reject invalid definitions of _POSIX_CHOWN_RESTRICTED, _POSIX_NO_TRUNC, _POSIX_VDISABLE
POSIX requires that the constants _POSIX_CHOWN_RESTRICTED,
_POSIX_NO_TRUNC, and _POSIX_VDISABLE are always defined to a value other
than -1.
Diffstat (limited to 'sysdeps/posix/fpathconf.c')
-rw-r--r--sysdeps/posix/fpathconf.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/sysdeps/posix/fpathconf.c b/sysdeps/posix/fpathconf.c
index 80af77e148..a9d164564e 100644
--- a/sysdeps/posix/fpathconf.c
+++ b/sysdeps/posix/fpathconf.c
@@ -103,25 +103,22 @@ __fpathconf (int fd, int name)
 #endif
 
     case _PC_CHOWN_RESTRICTED:
-#ifdef	_POSIX_CHOWN_RESTRICTED
-      return _POSIX_CHOWN_RESTRICTED;
-#else
-      return -1;
+#if _POSIX_CHOWN_RESTRICTED == -1
+# error "Invalid value for _POSIX_CHOWN_RESTRICTED"
 #endif
+      return _POSIX_CHOWN_RESTRICTED;
 
     case _PC_NO_TRUNC:
-#ifdef	_POSIX_NO_TRUNC
-      return _POSIX_NO_TRUNC;
-#else
-      return -1;
+#if _POSIX_NO_TRUNC == -1
+# error "Invalid value for _POSIX_NO_TRUNC"
 #endif
+      return _POSIX_NO_TRUNC;
 
     case _PC_VDISABLE:
-#ifdef	_POSIX_VDISABLE
-      return _POSIX_VDISABLE;
-#else
-      return -1;
+#if _POSIX_VDISABLE == -1
+# error "Invalid value for _POSIX_VDISABLE"
 #endif
+      return _POSIX_VDISABLE;
 
     case _PC_SYNC_IO:
 #ifdef	_POSIX_SYNC_IO