ISC BIND version 9.2.2rc1

1 files changed, 74 insertions, 0 deletions

diff --git a/usr.sbin/bind/lib/isc/unix/strerror.c b/usr.sbin/bind/lib/isc/unix/strerror.c
new file mode 100644
index 00000000000..23e1e2b56a7
--- /dev/null
+++ b/usr.sbin/bind/lib/isc/unix/strerror.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * 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.
+ */
+
+/* $ISC: strerror.c,v 1.1.2.1 2001/10/22 23:28:25 gson Exp $ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include <isc/mutex.h>
+#include <isc/once.h>
+#include <isc/print.h>
+#include <isc/strerror.h>
+#include <isc/util.h>
+
+#ifdef HAVE_STRERROR
+/*
+ * We need to do this this way for profiled locks.
+ */
+static isc_mutex_t isc_strerror_lock;
+static void init_lock(void) {
+	RUNTIME_CHECK(isc_mutex_init(&isc_strerror_lock) == ISC_R_SUCCESS);
+}
+#else
+extern const char * const sys_errlist[];
+extern const int sys_nerr;
+#endif
+
+char *
+isc__strerror(int num, char *buf, size_t size) {
+#ifdef HAVE_STRERROR
+	char *msg;
+	unsigned int unum = num;
+	static isc_once_t once = ISC_ONCE_INIT;
+
+	REQUIRE(buf != NULL);
+
+	RUNTIME_CHECK(isc_once_do(&once, init_lock) == ISC_R_SUCCESS);
+
+	LOCK(&isc_strerror_lock);
+	msg = strerror(num);
+	if (msg != NULL)
+		snprintf(buf, size, "%s", msg);
+	else
+		snprintf(buf, size, "Unknown error: %u", unum);
+	UNLOCK(&isc_strerror_lock);
+	return (buf);
+#else
+	unsigned int unum = num;
+
+	REQUIRE(buf != NULL);
+
+	if (num >= 0 && num < sys_nerr)
+		snprintf(buf, size, "%s", sys_errlist[num]);
+	else
+		snprintf(buf, size, "Unknown error: %u", unum);
+	return (buf);
+#endif
+}