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[lttngtop.git] / lib / babeltrace / compat / string.h

diff --git a/lib/babeltrace/compat/string.h b/lib/babeltrace/compat/string.h
new file mode 100644 (file)
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--- /dev/null
+++ b/lib/babeltrace/compat/string.h
@@ -0,0 +1,54 @@
+#ifndef _BABELTRACE_COMPAT_STRING_H
+#define _BABELTRACE_COMPAT_STRING_H
+
+/*
+ * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@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.
+ */
+
+#include <string.h>
+
+#if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
+
+/* XSI-compliant strerror_r */
+static inline
+int compat_strerror_r(int errnum, char *buf, size_t buflen)
+{
+       return strerror_r(errnum, buf, buflen);
+}
+
+#else
+
+/* GNU-compliant strerror_r */
+static inline
+int compat_strerror_r(int errnum, char *buf, size_t buflen)
+{
+       char *retbuf;
+
+       retbuf = strerror_r(errnum, buf, buflen);
+       if (retbuf != buf)
+               strncpy(buf, retbuf, buflen);
+       buf[buflen - 1] = '\0';
+       return 0;
+}
+
+#endif
+
+#endif /* _BABELTRACE_COMPAT_STRING_H */