+/*
+ * Copyright (C) 2015 Michael Jeanson <mjeanson@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _COMPAT_STRING_H
+#define _COMPAT_STRING_H
+
+#include <string.h>
+
+#ifdef HAVE_STRNLEN
+static inline
+size_t lttng_strnlen(const char *str, size_t max)
+{
+ return strnlen(str, max);
+}
+#else
+static inline
+size_t lttng_strnlen(const char *str, size_t max)
+{
+ size_t ret;
+ const char *end;
+
+ end = memchr(str, 0, max);
+
+ if (end) {
+ ret = (size_t) (end - str);
+ } else {
+ ret = max;
+ }
+
+ return ret;
+}
+#endif /* HAVE_STRNLEN */
+
+#ifdef HAVE_STRNDUP
+static inline
+char *lttng_strndup(const char *s, size_t n)
+{
+ return strndup(s, n);
+}
+#else
+static inline
+char *lttng_strndup(const char *s, size_t n)
+{
+ char *ret;
+ size_t navail;
+
+ if (!s) {
+ ret = NULL;
+ goto end;
+ }
+
+ /* min() */
+ navail = strlen(s) + 1;
+ if ((n + 1) < navail) {
+ navail = n + 1;
+ }
+
+ ret = malloc(navail);
+ if (!ret) {
+ goto end;
+ }
+
+ memcpy(ret, s, navail);
+ ret[navail - 1] = '\0';
+end:
+ return ret;
+}
+#endif /* HAVE_STRNDUP */
+
+#endif /* _COMPAT_STRING_H */