add bcopy

Signed-off-by: Mattias Andrée <maandree@operamail.com>

2 files changed, 46 insertions, 1 deletions

diff --git a/include/strings.h b/include/strings.h
index 6186b1a..505e8ec 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -36,7 +36,8 @@
  * @param  segment  The memory segment to override.
  * @param  size     The size of the memory segment.
  */
-void bzero(void*, size_t) __deprecated("Use 'memset', 'explicit_bzero' or 'secure_free' instead.");
+void bzero(void*, size_t)
+  __deprecated("Use 'memset', 'explicit_bzero' or 'secure_free' instead.");
 
 #if !defined(_PORTABLE_SOURCE) && (defined(_SLIBC_SOURCE) || defined(_BSD_SOURCE))
 /**
@@ -51,6 +52,16 @@ void bzero(void*, size_t) __deprecated("Use 'memset', 'explicit_bzero' or 'secur
 void explicit_bzero(void*, size_t);
 #endif
 
+/**
+ * Copy a memory segment to another, possibly overlapping, segment.
+ * 
+ * @param  whence   The source memory segment.
+ * @param  whither  The destination memory segment.
+ * @param  size     The number of bytes to copy.
+ */
+void bcopy(const void*, void*, size_t)
+  __deprecated("Use 'memmove', or similar function, instead, but be aware of reordered paramters.");
+
 
 
 #endif
diff --git a/src/strings/bcopy.c b/src/strings/bcopy.c
new file mode 100644
index 0000000..47bbc1c
--- /dev/null
+++ b/src/strings/bcopy.c
@@ -0,0 +1,34 @@
+/**
+ * slibc — Yet another C library
+ * Copyright © 2015  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <strings.h>
+#include <string.h>
+
+
+
+/**
+ * Copy a memory segment to another, possibly overlapping, segment.
+ * 
+ * @param  whence   The source memory segment.
+ * @param  whither  The destination memory segment.
+ * @param  size     The number of bytes to copy.
+ */
+void bcopy(const void* whence, void* whither, size_t size)
+{
+  memmove(whither, whence, size);
+}
+