Initial commit of upstream NSPR (4.7.3) and NSS3 (3.12).

third_party/nspr/mozilla/nsprpub/lib/libc/src/strchr.c

Index: third_party/nspr/mozilla/nsprpub/lib/libc/src/strchr.c
diff --git a/third_party/nspr/mozilla/nsprpub/lib/libc/src/strchr.c b/third_party/nspr/mozilla/nsprpub/lib/libc/src/strchr.c
new file mode 100644
index 0000000000000000000000000000000000000000..35ccedcc71c13d0af3e12578f5dfd2904781c5ac
--- /dev/null
+++ b/third_party/nspr/mozilla/nsprpub/lib/libc/src/strchr.c
@@ -0,0 +1,88 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "plstr.h"
+#include <string.h>
+
+PR_IMPLEMENT(char *)
+PL_strchr(const char *s, char c)
+{
+    if( (const char *)0 == s ) return (char *)0;
+
+    return strchr(s, c);
+}
+
+PR_IMPLEMENT(char *)
+PL_strrchr(const char *s, char c)
+{
+    if( (const char *)0 == s ) return (char *)0;
+
+    return strrchr(s, c);
+}
+
+PR_IMPLEMENT(char *)
+PL_strnchr(const char *s, char c, PRUint32 n)
+{
+    if( (const char *)0 == s ) return (char *)0;
+
+    for( ; n && *s; s++, n-- )
+        if( *s == c )
+            return (char *)s;
+
+    if( ((char)0 == c) && (n > 0) && ((char)0 == *s) ) return (char *)s;
+
+    return (char *)0;
+}
+
+PR_IMPLEMENT(char *)
+PL_strnrchr(const char *s, char c, PRUint32 n)
+{
+    const char *p;
+
+    if( (const char *)0 == s ) return (char *)0;
+
+    for( p = s; n && *p; p++, n-- )
+        ;
+
+    if( ((char)0 == c) && (n > 0) && ((char)0 == *p) ) return (char *)p;
+
+    for( p--; p >= s; p-- )
+        if( *p == c )
+            return (char *)p;
+
+    return (char *)0;
+}