Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/uwac/libuwac/uwac-utils.h

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+/*
+ * 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>
+#include <string.h>
+
+#include <uwac/config.h>
+
+#define min(a, b) (a) < (b) ? (a) : (b)
+
+#define container_of(ptr, type, member) (type*)((char*)(ptr)-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);
+
+static inline char* uwac_strerror(int dw, char* dmsg, size_t size)
+{
+#ifdef __STDC_LIB_EXT1__
+	(void)strerror_s(dw, dmsg, size);
+#elif defined(UWAC_HAVE_STRERROR_R)
+	(void)strerror_r(dw, dmsg, size);
+#else
+	(void)_snprintf(dmsg, size, "%s", strerror(dw));
+#endif
+	return dmsg;
+}
+
+#endif /* UWAC_UTILS_H_ */