diff --git a/libc/Makefile b/libc/Makefile
index 041a873c..160c4d6e 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -179,6 +179,7 @@ stdlib/mbstowcs.o \
stdlib/mbtowc.o \
stdlib/qsort.o \
stdlib/qsort_r.o \
+stdlib/reallocarray.o \
stdlib/realloc.o \
stdlib/strtod.o \
stdlib/strtof.o \
diff --git a/libc/include/stdlib.h b/libc/include/stdlib.h
index 8d6db326..2af2d2a0 100644
--- a/libc/include/stdlib.h
+++ b/libc/include/stdlib.h
@@ -170,6 +170,7 @@ int unlockpt(int);
uint32_t arc4random(void);
void arc4random_buf(void*, size_t);
uint32_t arc4random_uniform(uint32_t);
+void* reallocarray(void*, size_t, size_t);
#endif
__END_DECLS
diff --git a/libc/stdlib/reallocarray.cpp b/libc/stdlib/reallocarray.cpp
new file mode 100644
index 00000000..52c134fe
--- /dev/null
+++ b/libc/stdlib/reallocarray.cpp
@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+ Copyright(C) Jonas 'Sortie' Termansen 2014.
+
+ 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 .
+
+ stdlib/reallocarray.cpp
+ Reallocates a chunk of memory from the dynamic memory heap.
+
+*******************************************************************************/
+
+#include
+#include
+#include
+
+extern "C" void* reallocarray(void* ptr, size_t nmemb, size_t size)
+{
+ if ( size && nmemb && SIZE_MAX / size < nmemb )
+ return errno = ENOMEM, (void*) NULL;
+ return realloc(ptr, nmemb * size);
+}