From bbc63a23924d7f24b162f9e94b1a5b07b1514baf Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Sun, 14 Jun 2015 23:25:49 -0700
Subject: [PATCH] Util: Add strdup implementation for platforms without it

---
 CMakeLists.txt    |  5 +++++
 src/util/string.c | 10 ++++++++++
 src/util/string.h |  4 ++++
 3 files changed, 19 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 14f235775..01257b042 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -211,6 +211,7 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm.*")
 endif()
 
 include(CheckFunctionExists)
+check_function_exists(strdup HAVE_STRDUP)
 check_function_exists(strndup HAVE_STRNDUP)
 check_function_exists(snprintf_l HAVE_SNPRINTF_L)
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
@@ -223,6 +224,10 @@ check_function_exists(newlocale HAVE_NEWLOCALE)
 check_function_exists(freelocale HAVE_FREELOCALE)
 check_function_exists(uselocale HAVE_USELOCALE)
 
+if(HAVE_STRDUP)
+	add_definitions(-DHAVE_STRDUP)
+endif()
+
 if(HAVE_STRNDUP)
 	add_definitions(-DHAVE_STRNDUP)
 endif()
diff --git a/src/util/string.c b/src/util/string.c
index 74b7ed997..6920d8d0c 100644
--- a/src/util/string.c
+++ b/src/util/string.c
@@ -17,6 +17,16 @@ char* strndup(const char* start, size_t len) {
 }
 #endif
 
+#ifndef HAVE_STRDUP
+char* strdup(const char* str) {
+	size_t len = strlen(str);
+	char* out = malloc(len + 1);
+	strncpy(out, str, len);
+	out[len] = '\0';
+	return out;
+}
+#endif
+
 char* strnrstr(const char* restrict haystack, const char* restrict needle, size_t len) {
 	char* last = 0;
 	const char* next = haystack;
diff --git a/src/util/string.h b/src/util/string.h
index e326bf047..c49bc06d0 100644
--- a/src/util/string.h
+++ b/src/util/string.h
@@ -13,6 +13,10 @@
 char* strndup(const char* start, size_t len);
 #endif
 
+#ifndef strdup
+char* strdup(const char* str);
+#endif
+
 char* strnrstr(const char* restrict s1, const char* restrict s2, size_t len);
 
 int utfcmp(const uint16_t* utf16, const char* utf8, size_t utf16Length, size_t utf8Length);