X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fhuman.c;h=600614e011a54bca7ee6668d5d776b5500ce7ea6;hb=24552d14072b435cf47c5b6da7262bcb43578046;hp=6d91b8c1b7f00012484d2a46b822c6dab86cc74a;hpb=f1d774407b15a379d9344c67cc4fde585af5cc2a;p=gnulib.git

diff --git a/lib/human.c b/lib/human.c
index 6d91b8c1b..600614e01 100644
--- a/lib/human.c
+++ b/lib/human.c
@@ -276,13 +276,19 @@ human_readable_inexact (uintmax_t n, char *buf,
 static char const *const block_size_args[] = { "human-readable", "si", 0 };
 static int const block_size_types[] = { -1024, -1000 };
 
+static int
+default_block_size (void)
+{
+  return getenv ("POSIXLY_CORRECT") ? 512 : DEFAULT_BLOCK_SIZE;
+}
+
 static strtol_error
 humblock (char const *spec, int *block_size)
 {
   int i;
 
   if (! spec && ! (spec = getenv ("BLOCK_SIZE")))
-    *block_size = getenv ("POSIXLY_CORRECT") ? 512 : DEFAULT_BLOCK_SIZE;
+    *block_size = default_block_size ();
   else if (0 <= (i = ARGMATCH (spec, block_size_args, block_size_types)))
     *block_size = block_size_types[i];
   else
@@ -306,6 +312,11 @@ void
 human_block_size (char const *spec, int report_errors, int *block_size)
 {
   strtol_error e = humblock (spec, block_size);
+  if (*block_size == 0)
+    {
+      *block_size = default_block_size ();
+      e = LONGINT_INVALID;
+    }
   if (e != LONGINT_OK && report_errors)
     STRTOL_FATAL_ERROR (spec, _("block size"), e);
 }