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authorH. Peter Anvin <hpa@zytor.com>2016-05-25 05:42:47 -0700
committerH. Peter Anvin <hpa@zytor.com>2016-05-25 05:43:49 -0700
commit22538e2b6713d6e4e05fb82c6969320a519b4c93 (patch)
treefee7c6d52894e703c0daf2582a27ba44a65afc1f /stdlib
parent0c0fdaa357ef7f53c61d9c854008edba70864ce7 (diff)
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nasmlib: break up nasmlib.c into logical components
nasmlib.c had basically turned into a garbage bin of various functions with very little in common. Break it up into logical components for isolation and manageability. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'stdlib')
-rw-r--r--stdlib/strnlen.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/stdlib/strnlen.c b/stdlib/strnlen.c
new file mode 100644
index 00000000..40eacf54
--- /dev/null
+++ b/stdlib/strnlen.c
@@ -0,0 +1,46 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 1996-2016 The NASM Authors - All Rights Reserved
+ * See the file AUTHORS included with the NASM distribution for
+ * the specific copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ----------------------------------------------------------------------- */
+
+#include "compiler.h"
+#include <string.h>
+
+#ifndef HAVE_STRNLEN
+
+size_t strnlen(const char *s, size_t maxlen)
+{
+ const char *end = memchr(s, 0, maxlen);
+
+ return end ? (size_t)(end - s) : maxlen;
+}
+
+#endif