Initial Spring 2016 commit.

userland/sbin/sfsck/utils.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009, 2013
+ *	The President and Fellows of Harvard College.
+ *
+ * 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 UNIVERSITY 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 UNIVERSITY 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.
+ */
+
+#ifndef UTILS_H
+#define UTILS_H
+
+#include <sys/types.h>	/* for size_t */
+#include <stdint.h>	/* for uint32_t */
+
+/* non-failing wrapper around malloc */
+void *domalloc(size_t len);
+void *dorealloc(void *op, size_t osz, size_t nsz);
+
+/* return a fresh id number */
+uint32_t uniqueid(void);
+
+/* ensure that BUF (of size MAXLEN) is terminated; return 1 if changed */
+int checknullstring(char *buf, size_t maxlen);
+
+/* check for illegal filename characters; if found, zap them and return 1 */
+int checkbadstring(char *buf);
+
+/* check for nonzero bytes in a zeroed area; if found, zap and return 1 */
+int checkzeroed(void *buf, size_t len);
+
+#endif /* UTILS_H */