1 files changed, 56 insertions, 0 deletions
diff --git a/uwac/libuwac/uwac-utils.h b/uwac/libuwac/uwac-utils.h
new file mode 100644
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+++ b/uwac/libuwac/uwac-utils.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2014 David FORT <contact@hardening-consulting.com>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef UWAC_UTILS_H_
+#define UWAC_UTILS_H_
+
+#include <stdlib.h>
+
+#define min(a, b)               \
+	({                          \
+		__typeof__(a) _a = (a); \
+		__typeof__(b) _b = (b); \
+		_a < _b ? _a : _b;      \
+	})
+
+#define container_of(ptr, type, member)                  \
+	({                                                   \
+		__typeof__(((type*)0)->member)* __mptr = (ptr);  \
+		(type*)((char*)__mptr - offsetof(type, member)); \
+	})
+
+#define ARRAY_LENGTH(a) (sizeof(a) / sizeof(a)[0])
+
+void* xmalloc(size_t s);
+
+static inline void* zalloc(size_t size)
+{
+	return calloc(1, size);
+}
+
+void* xzalloc(size_t s);
+
+char* xstrdup(const char* s);
+
+void* xrealloc(void* p, size_t s);
+
+#endif /* UWAC_UTILS_H_ */