From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 8 Nov 2006 20:13:12 +0000 (+0000)
Subject: * lib/quotearg.h (quotearg_free): New decl.
X-Git-Tag: cvs-readonly~1591
X-Git-Url: http://erislabs.org.uk/gitweb/?a=commitdiff_plain;h=96159f3a857b1eb302118ab0add8f725981dbca0;p=gnulib.git

* lib/quotearg.h (quotearg_free): New decl.
* lib/quotearg.c (quotearg_free): New function.
(slot0, nslots, slotvec0, slotvec):
Now file-scope so that quotearg_free can get at them.
---

diff --git a/ChangeLog b/ChangeLog
index 9cc361f9c..9269f399e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2006-11-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* lib/quotearg.h (quotearg_free): New decl.
+	* lib/quotearg.c (quotearg_free): New function.
+	(slot0, nslots, slotvec0, slotvec):
+	Now file-scope so that quotearg_free can get at them.
+
 2006-11-08  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	Sync from Automake.
diff --git a/lib/quotearg.c b/lib/quotearg.c
index dae291547..6f3ee9e86 100644
--- a/lib/quotearg.c
+++ b/lib/quotearg.c
@@ -567,6 +567,34 @@ struct slotvec
   char *val;
 };
 
+/* Preallocate a slot 0 buffer, so that the caller can always quote
+   one small component of a "memory exhausted" message in slot 0.  */
+static char slot0[256];
+static unsigned int nslots = 1;
+static struct slotvec slotvec0 = {sizeof slot0, slot0};
+static struct slotvec *slotvec = &slotvec0;
+
+void
+quotearg_free (void)
+{
+  struct slotvec *sv = slotvec;
+  unsigned int i;
+  for (i = 1; i < nslots; i++)
+    free (sv[i].val);
+  if (sv[0].val != slot0)
+    {
+      free (sv[0].val);
+      slotvec0.size = sizeof slot0;
+      slotvec0.val = slot0;
+    }
+  if (sv != &slotvec0)
+    {
+      free (sv);
+      slotvec = &slotvec0;
+    }
+  nslots = 1;
+}
+
 /* Use storage slot N to return a quoted version of argument ARG.
    ARG is of size ARGSIZE, but if that is SIZE_MAX, ARG is a
    null-terminated string.
@@ -581,13 +609,7 @@ quotearg_n_options (int n, char const *arg, size_t argsize,
 {
   int e = errno;
 
-  /* Preallocate a slot 0 buffer, so that the caller can always quote
-     one small component of a "memory exhausted" message in slot 0.  */
-  static char slot0[256];
-  static unsigned int nslots = 1;
   unsigned int n0 = n;
-  static struct slotvec slotvec0 = {sizeof slot0, slot0};
-  static struct slotvec *slotvec = &slotvec0;
   struct slotvec *sv = slotvec;
 
   if (n < 0)
diff --git a/lib/quotearg.h b/lib/quotearg.h
index 24f26f7d4..4887df3b6 100644
--- a/lib/quotearg.h
+++ b/lib/quotearg.h
@@ -1,7 +1,7 @@
 /* quotearg.h - quote arguments for output
 
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Free Software
-   Foundation, Inc.
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 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
@@ -134,4 +134,7 @@ char *quotearg_char (char const *arg, char ch);
 /* Equivalent to quotearg_char (ARG, ':').  */
 char *quotearg_colon (char const *arg);
 
+/* Free any dynamically allocated memory.  */
+void quotearg_free (void);
+
 #endif /* !QUOTEARG_H_ */