Import buf from Catacomb; split out the dstr bits, and throw away the mp and

[mLib] / buf-dstr.c

diff --git a/buf-dstr.c b/buf-dstr.c
new file mode 100644 (file)
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--- /dev/null
+++ b/buf-dstr.c
@@ -0,0 +1,77 @@
+/* -*-c-*-
+ *
+ * $Id$
+ *
+ * Buffers and dynamic strings
+ *
+ * (c) 2005 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------* 
+ *
+ * This file is part of the mLib utilities library.
+ *
+ * mLib 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.
+ * 
+ * mLib 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 mLib; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <string.h>
+
+#include "buf.h"
+
+/*----- Main code ---------------------------------------------------------*/
+
+/* --- @buf_getdstr{8,{16,24,32,64}{,l,b},z} --- *
+ *
+ * Arguments:  @buf *b@ = pointer to a buffer block
+ *             @dstr *d@ = where to put the result
+ *
+ * Returns:    Zero if it worked, nonzero if there wasn't enough space.
+ *
+ * Use:                Gets a block of data from a buffer, and writes its contents
+ *             to a string.
+ */
+
+#define BUF_GETDSTR_(n, W, w)                                          \
+  int buf_getdstr##w(buf *b, dstr *d)                                  \
+  {                                                                    \
+    void *p;                                                           \
+    size_t sz;                                                         \
+                                                                       \
+    if ((p = buf_getmem##w(b, &sz)) == 0)                              \
+      return (-1);                                                     \
+    DPUTM(d, p, sz);                                                   \
+    return (0);                                                                \
+  }
+BUF_DOSUFFIXES(BUF_GETDSTR_)
+
+/* --- @buf_putdstr{8,{16,24,32,64}{,l,b},z} --- *
+ *
+ * Arguments:  @buf *b@ = pointer to a buffer block
+ *             @dstr *d@ = string to write
+ *
+ * Returns:    Zero if it worked, nonzero if there wasn't enough space.
+ *
+ * Use:                Puts a dynamic string to a buffer.
+ */
+
+#define BUF_PUTDSTR_(n, W, w)                                          \
+  int buf_putdstr##w(buf *b, dstr *d)                                  \
+    { return (buf_putmem##w(b, d->buf, d->len)); }
+BUF_DOSUFFIXES(BUF_PUTDSTR_)
+
+/*----- That's all, folks -------------------------------------------------*/