Treat __strftime__ and __strfmon__ like __scanf__.

[gnulib.git] / lib / openat-priv.h

diff --git a/lib/openat-priv.h b/lib/openat-priv.h
index 1f420c1..2d98821 100644 (file)
--- a/lib/openat-priv.h
+++ b/lib/openat-priv.h
@@ -1,5 +1,6 @@
-/* macros used by openat-like functions
-   Copyright (C) 2005 Free Software Foundation, Inc.
+/* Internals for openat-like functions.
+
+   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,30 +18,11 @@
 
 /* written by Jim Meyering */
 
-#include <stdio.h>
-#include <string.h>
 #include <errno.h>
-#include "alloca.h"
-#include "intprops.h"
-
-/* Set PROC_FD_FILENAME to the expansion of "/proc/self/fd/%d/%s" in
-   alloca'd memory, using FD and FILE, respectively for %d and %s. */
-#define BUILD_PROC_NAME(Proc_fd_filename, Fd, File)                    \
-  do                                                                   \
-    {                                                                  \
-      size_t filelen = strlen (File);                                  \
-      static const char procfd[] = "/proc/self/fd/%d/%s";              \
-      /* Buffer for the file name we are going to use.  It consists of \
-        - the string /proc/self/fd/                                    \
-        - the file descriptor number                                   \
-        - the file name provided.                                      \
-        The final NUL is included in the sizeof.                       \
-        Subtract 4 to account for %d and %s.  */                       \
-      size_t buflen = sizeof (procfd) - 4 + INT_STRLEN_BOUND (Fd) + filelen; \
-      (Proc_fd_filename) = alloca (buflen);                            \
-      snprintf ((Proc_fd_filename), buflen, procfd, (Fd), (File));     \
-    }                                                                  \
-  while (0)
+#include <stdlib.h>
+
+#define OPENAT_BUFFER_SIZE 512
+char *openat_proc_name (char buf[OPENAT_BUFFER_SIZE], int fd, char const *file);
 
 /* Some systems don't have ENOSYS.  */
 #ifndef ENOSYS
@@ -52,6 +34,16 @@
 # endif
 #endif
 
+/* Some systems don't have EOPNOTSUPP.  */
+#ifndef EOPNOTSUPP
+# ifdef ENOTSUP
+#  define EOPNOTSUPP ENOTSUP
+# else
+/* Some systems don't have ENOTSUP either.  */
+#  define EOPNOTSUPP EINVAL
+# endif
+#endif
+
 /* Trying to access a BUILD_PROC_NAME file will fail on systems without
    /proc support, and even on systems *with* ProcFS support.  Return
    nonzero if the failure may be legitimate, e.g., because /proc is not