1 files changed, 79 insertions, 0 deletions

diff --git a/src/lib/libc/string/strsep.c b/src/lib/libc/string/strsep.c
new file mode 100644
index 0000000000..337d78e466
--- /dev/null
+++ b/src/lib/libc/string/strsep.c
@@ -0,0 +1,79 @@
+/*      $OpenBSD: strsep.c,v 1.5 2003/06/11 21:08:16 deraadt Exp $      */
+
+/*-
+ * Copyright (c) 1990, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <string.h>
+#include <stdio.h>
+
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)strsep.c    8.1 (Berkeley) 6/4/93";
+#else
+static char *rcsid = "$OpenBSD: strsep.c,v 1.5 2003/06/11 21:08:16 deraadt Exp $";
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+/*
+ * Get next token from string *stringp, where tokens are possibly-empty
+ * strings separated by characters from delim.  
+ *
+ * Writes NULs into the string at *stringp to end tokens.
+ * delim need not remain constant from call to call.
+ * On return, *stringp points past the last NUL written (if there might
+ * be further tokens), or is NULL (if there are definitely no more tokens).
+ *
+ * If *stringp is NULL, strsep returns NULL.
+ */
+char *
+strsep(char **stringp, const char *delim)
+{
+        char *s;
+        const char *spanp;
+        int c, sc;
+        char *tok;
+
+        if ((s = *stringp) == NULL)
+                return (NULL);
+        for (tok = s;;) {
+                c = *s++;
+                spanp = delim;
+                do {
+                        if ((sc = *spanp++) == c) {
+                                if (c == 0)
+                                        s = NULL;
+                                else
+                                        s[-1] = 0;
+                                *stringp = s;
+                                return (tok);
+                        }
+                } while (sc != 0);
+        }
+        /* NOTREACHED */
+}