1 files changed, 44 insertions, 0 deletions
diff --git a/compat/strchrnul.c b/compat/strchrnul.c
new file mode 100644
index 0000000..ffc4f85
--- /dev/null
+++ b/compat/strchrnul.c
@@ -0,0 +1,44 @@
+/**
+* duser - Manage MajorDomo lists
+* Copyright (C) 2011 Joseph Hunkeler <jhunkeler@gmail.com, jhunk@stsci.edu>
+*
+* This file is part of duser.
+*
+* duser is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* duser is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with duser. If not, see <http://www.gnu.org/licenses/>.
+**/
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+/*
+ * Locate a char in a string
+ *
+ * The strchr() function returns a pointer to the first occurrence 
+ * of the character c in the string s. 
+ *
+ * The strrchr() function returns a pointer to the last occurrence 
+ * of the character c in the string s. 
+ *
+ * The strchrnul() function is like strchr() except that 
+ * if c is not found in s, then it returns a pointer to the 
+ * null byte at the end of s, rather than NULL. 
+ */
+char *strchrnul(const char* s, int c)
+{
+    while(*s && *s != c)
+    {
+        s++;
+    }
+}