1 files changed, 43 insertions, 0 deletions
diff --git a/lib/strpbrk.c b/lib/strpbrk.c
new file mode 100644
index 0000000..38e8099
--- /dev/null
+++ b/lib/strpbrk.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1991, 1994, 2000, 2002-2003, 2006, 2009-2018 Free Software
+   Foundation, Inc.
+
+   NOTE: The canonical source of this file is maintained with the GNU C Library.
+   Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+   This program 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, or (at your option) any
+   later version.
+
+   This program 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 this program; if not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <stddef.h>
+#include <string.h>
+
+#if _LIBC
+# undef strpbrk
+#endif
+
+/* Find the first occurrence in S of any character in ACCEPT.  */
+char *
+strpbrk (const char *s, const char *accept)
+{
+  while (*s != '\0')
+    {
+      const char *a = accept;
+      while (*a != '\0')
+        if (*a++ == *s)
+          return (char *) s;
+      ++s;
+    }
+
+  return NULL;
+}