From f1888f9e8b3c14bc02b3f2c8c23d7b4e1b0c4dc9 Mon Sep 17 00:00:00 2001
From: Jonas 'Sortie' Termansen <sortie@maxsi.org>
Date: Thu, 11 Jul 2013 23:13:19 +0200
Subject: [PATCH] Add strlcat(3).

---
 libc/Makefile           |  1 +
 libc/include/string.h   |  1 +
 libc/string/strlcat.cpp | 35 +++++++++++++++++++++++++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 libc/string/strlcat.cpp

diff --git a/libc/Makefile b/libc/Makefile
index 6cb9e3af..97e2a8ee 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -119,6 +119,7 @@ string/strdup.o \
 string/strerror_l.o \
 string/strerror.o \
 string/strerror_r.o \
+string/strlcat.o \
 string/strlcpy.o \
 string/strlen.o \
 string/strncasecmp.o \
diff --git a/libc/include/string.h b/libc/include/string.h
index 4cb13225..2a7b71f9 100644
--- a/libc/include/string.h
+++ b/libc/include/string.h
@@ -51,6 +51,7 @@ size_t strcspn(const char*, const char*);
 char* strcpy(char* __restrict, const char* __restrict);
 char* strdup(const char*);
 int strerror_r(int, char*, size_t);
+size_t strlcat(char* __restrict, const char* __restrict, size_t);
 size_t strlcpy(char* __restrict, const char* __restrict, size_t);
 size_t strlen(const char*);
 char* strncat(char* __restrict, const char* __restrict, size_t);
diff --git a/libc/string/strlcat.cpp b/libc/string/strlcat.cpp
new file mode 100644
index 00000000..4a60b7b4
--- /dev/null
+++ b/libc/string/strlcat.cpp
@@ -0,0 +1,35 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C 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 Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    string/strlcat.cpp
+    Appends a string onto another string truncating if the string is too small.
+
+*******************************************************************************/
+
+#include <string.h>
+
+extern "C"
+size_t strlcat(char* restrict dest, const char* restrict src, size_t size)
+{
+	size_t dest_len = strnlen(dest, size);
+	if ( size <= dest_len )
+		return dest_len;
+	strcpy(dest + strlen(dest), src);
+	return dest_len + strlcpy(dest + dest_len, src, size - dest_len);
+}