Merge from Gnulib

This incorporates:
2017-11-23 stat: work around Solaris bug with tv_nsec < 0
2017-11-12 maint: shorten https://lists.gnu.org/archive/html/... links
* build-aux/config.sub, doc/misc/texinfo.tex, lib/allocator.h:
* lib/fstatat.c, lib/intprops.h, lib/lstat.c, lib/signal.in.h:
* lib/stat-time.h, lib/stdio-impl.h, lib/stdio.in.h:
* lib/timespec.h, m4/alloca.m4, m4/extern-inline.m4:
* m4/faccessat.m4, m4/fstatat.m4, m4/gnulib-common.m4:
* m4/lstat.m4, m4/std-gnu11.m4, m4/sys_types_h.m4:
* m4/vararrays.m4:
Copy from Gnulib.

1 files changed, 21 insertions, 18 deletions

diff --git a/lib/lstat.c b/lib/lstat.c
index c721a4e641c..f3c61779540 100644
--- a/lib/lstat.c
+++ b/lib/lstat.c
@@ -47,6 +47,8 @@ orig_lstat (const char *filename, struct stat *buf)
    above.  */
 # include "sys/stat.h"
 
+# include "stat-time.h"
+
 # include <string.h>
 # include <errno.h>
 
@@ -66,32 +68,33 @@ orig_lstat (const char *filename, struct stat *buf)
 int
 rpl_lstat (const char *file, struct stat *sbuf)
 {
-  size_t len;
-  int lstat_result = orig_lstat (file, sbuf);
-
-  if (lstat_result != 0)
-    return lstat_result;
+  int result = orig_lstat (file, sbuf);
 
   /* This replacement file can blindly check against '/' rather than
      using the ISSLASH macro, because all platforms with '\\' either
      lack symlinks (mingw) or have working lstat (cygwin) and thus do
      not compile this file.  0 len should have already been filtered
      out above, with a failure return of ENOENT.  */
-  len = strlen (file);
-  if (file[len - 1] != '/' || S_ISDIR (sbuf->st_mode))
-    return 0;
-
-  /* At this point, a trailing slash is only permitted on
-     symlink-to-dir; but it should have found information on the
-     directory, not the symlink.  Call stat() to get info about the
-     link's referent.  Our replacement stat guarantees valid results,
-     even if the symlink is not pointing to a directory.  */
-  if (!S_ISLNK (sbuf->st_mode))
+  if (result == 0)
     {
-      errno = ENOTDIR;
-      return -1;
+      if (S_ISDIR (sbuf->st_mode) || file[strlen (file) - 1] != '/')
+        result = stat_time_normalize (result, sbuf);
+      else
+        {
+          /* At this point, a trailing slash is permitted only on
+             symlink-to-dir; but it should have found information on the
+             directory, not the symlink.  Call 'stat' to get info about the
+             link's referent.  Our replacement stat guarantees valid results,
+             even if the symlink is not pointing to a directory.  */
+          if (!S_ISLNK (sbuf->st_mode))
+            {
+              errno = ENOTDIR;
+              return -1;
+            }
+          result = stat (file, sbuf);
+        }
     }
-  return stat (file, sbuf);
+  return result;
 }
 
 #endif /* HAVE_LSTAT */