1 files changed, 82 insertions, 0 deletions
diff --git a/gnu/libexec/uucp/libuuconf/alloc.c b/gnu/libexec/uucp/libuuconf/alloc.c
new file mode 100644
index 000000000000..9b9c90649646
--- /dev/null
+++ b/gnu/libexec/uucp/libuuconf/alloc.c
@@ -0,0 +1,82 @@
+/* alloc.c
+   Allocate within a memory block.
+
+   Copyright (C) 1992 Ian Lance Taylor
+
+   This file is part of the Taylor UUCP uuconf library.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License
+   as published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   The author of the program may be contacted at ian@airs.com or
+   c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
+   */
+
+#include "uucnfi.h"
+
+#if USE_RCS_ID
+const char _uuconf_alloc_rcsid[] = "$Id: alloc.c,v 1.1 1993/08/05 18:24:59 conklin Exp $";
+#endif
+
+#include "alloc.h"
+
+/* Allocate some memory out of a memory block.  If the memory block is
+   NULL, this just calls malloc; this is convenient for a number of
+   routines.  If this fails, uuconf_errno will be set, and the calling
+   routine may return UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO.  */
+
+pointer
+uuconf_malloc (pblock, c)
+     pointer pblock;
+     size_t c;
+{
+  struct sblock *q = (struct sblock *) pblock;
+  pointer pret;
+
+  if (c == 0)
+    return NULL;
+
+  if (q == NULL)
+    return malloc (c);
+
+  /* Make sure that c is aligned to a double boundary.  */
+  c = ((c + sizeof (double) - 1) / sizeof (double)) * sizeof (double);
+
+  while (q->ifree + c > CALLOC_SIZE)
+    {
+      if (q->qnext != NULL)
+	q = q->qnext;
+      else
+	{
+	  if (c > CALLOC_SIZE)
+	    q->qnext = (struct sblock *) malloc (sizeof (struct sblock)
+						 + c - CALLOC_SIZE);
+	  else
+	    q->qnext = (struct sblock *) malloc (sizeof (struct sblock));
+	  if (q->qnext == NULL)
+	    return NULL;
+	  q = q->qnext;
+	  q->qnext = NULL;
+	  q->ifree = 0;
+	  q->qadded = NULL;
+	  break;
+	}
+    }
+
+  pret = q->u.ab + q->ifree;
+  q->ifree += c;
+  q->plast = pret;
+
+  return pret;
+}