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[thirdparty/glibc.git] / sysdeps / posix / fpathconf.c

diff --git a/sysdeps/posix/fpathconf.c b/sysdeps/posix/fpathconf.c
index 7b072fa3ca155929e064adab84be5cbfc5167a7b..8586428556048a2f90c3125b22129d94dd679e68 100644 (file)
--- a/sysdeps/posix/fpathconf.c
+++ b/sysdeps/posix/fpathconf.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1991,1995,1996,1998,2000,2001,2003
-   Free Software Foundation, Inc.
+/* Copyright (C) 1991-2019 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
@@ -14,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #include <errno.h>
 #include <stddef.h>
@@ -27,9 +26,7 @@
 
 /* Get file-specific information about descriptor FD.  */
 long int
-__fpathconf (fd, name)
-     int fd;
-     int name;
+__fpathconf (int fd, int name)
 {
   if (fd < 0)
     {
@@ -67,10 +64,10 @@ __fpathconf (fd, name)
     case _PC_NAME_MAX:
 #ifdef NAME_MAX
       {
-       struct statfs buf;
+       struct statvfs64 sv;
        int save_errno = errno;
 
-       if (__fstatfs (fd, &buf) < 0)
+       if (__fstatvfs64 (fd, &sv) < 0)
          {
            if (errno == ENOSYS)
              {
@@ -84,15 +81,7 @@ __fpathconf (fd, name)
          }
        else
          {
-#ifdef _STATFS_F_NAMELEN
-           return buf.f_namelen;
-#else
-# ifdef _STATFS_F_NAME_MAX
-           return buf.f_name_max;
-# else
-           return NAME_MAX;
-# endif
-#endif
+           return sv.f_namemax;
          }
       }
 #else
@@ -114,25 +103,22 @@ __fpathconf (fd, 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