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-rw-r--r--nsprpub/lib/libc/src/strlen.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/nsprpub/lib/libc/src/strlen.c b/nsprpub/lib/libc/src/strlen.c
new file mode 100644
index 000000000..ba6c612de
--- /dev/null
+++ b/nsprpub/lib/libc/src/strlen.c
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "plstr.h"
+#include "prtypes.h"
+#include "prlog.h"
+#include <string.h>
+
+PR_IMPLEMENT(PRUint32)
+PL_strlen(const char *str)
+{
+ size_t l;
+
+ if( (const char *)0 == str ) return 0;
+
+ l = strlen(str);
+
+ /* error checking in case we have a 64-bit platform -- make sure
+ * we don't have ultra long strings that overflow an int32
+ */
+ if( sizeof(PRUint32) < sizeof(size_t) )
+ {
+ if( l > PR_INT32_MAX )
+ PR_Assert("l <= PR_INT32_MAX", __FILE__, __LINE__);
+ }
+
+ return (PRUint32)l;
+}
+
+PR_IMPLEMENT(PRUint32)
+PL_strnlen(const char *str, PRUint32 max)
+{
+ register const char *s;
+
+ if( (const char *)0 == str ) return 0;
+ for( s = str; max && *s; s++, max-- )
+ ;
+
+ return (PRUint32)(s - str);
+}