Add `-internal` suffix to all internal header files

[babeltrace.git] / include / babeltrace / compat / string-internal.h

diff --git a/include/babeltrace/compat/string-internal.h b/include/babeltrace/compat/string-internal.h
new file mode 100644 (file)
index 0000000..2aa7bc3
--- /dev/null
+++ b/include/babeltrace/compat/string-internal.h
@@ -0,0 +1,116 @@
+#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>
+#include <stdlib.h>
+
+#if !defined(__GLIBC__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
+
+/* XSI-compliant strerror_r */
+static inline
+int bt_strerror_r(int errnum, char *buf, size_t buflen)
+{
+       return strerror_r(errnum, buf, buflen);
+}
+
+#else
+
+/* GNU-compliant strerror_r */
+static inline
+int bt_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
+
+#ifdef HAVE_STRNLEN
+static inline
+size_t bt_strnlen(const char *str, size_t max)
+{
+       return strnlen(str, max);
+}
+#else
+static inline
+size_t bt_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 *bt_strndup(const char *s, size_t n)
+{
+       return strndup(s, n);
+}
+#else
+static inline
+char *bt_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 /* _BABELTRACE_COMPAT_STRING_H */