5428 provide fts(), reallocarray(), and strtonum()

Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Joshua M. Clulow <josh@sysmgr.org>

3 files changed, 142 insertions, 10 deletions

diff --git a/usr/src/head/Makefile b/usr/src/head/Makefile
index e6397736af..e5cd6e1ef0 100644
--- a/usr/src/head/Makefile
+++ b/usr/src/head/Makefile
@@ -24,26 +24,29 @@
 # Use is subject to license terms.
 # Copyright 2013 Garrett D'Amore <garrett@damore.org>
 # Copyright 2015 Igor Kozhukhov <ikozhukhov@gmail.com>
-# Copyright 2016 Nexenta Systems, Inc.
+# Copyright 2017 Nexenta Systems, Inc.
 #
 
-#
-# head/Makefile
-#
 # include global definitions
 include ../Makefile.master
 
 sparc_HDRS=
 i386_HDRS=	stack_unwind.h
 
-# Headers are listed one per line so that TeamWare can auto-merge most changes
-
-KRB5HDRS= mit_copyright.h mit-sipb-copyright.h
+KRB5HDRS=		\
+	mit_copyright.h	\
+	mit-sipb-copyright.h
 
-ATTRDB_HDRS=	secdb.h auth_attr.h exec_attr.h prof_attr.h user_attr.h \
-	auth_list.h
+ATTRDB_HDRS=		\
+	auth_attr.h	\
+	auth_list.h	\
+	exec_attr.h	\
+	prof_attr.h	\
+	secdb.h		\
+	user_attr.h
 
-HDRS=   $($(MACH)_HDRS)  $(ATTRDB_HDRS) \
+HDRS=   $($(MACH)_HDRS)	\
+	$(ATTRDB_HDRS)	\
 	aio.h		\
 	alloca.h	\
 	apptrace.h	\
@@ -81,6 +84,7 @@ HDRS=   $($(MACH)_HDRS)  $(ATTRDB_HDRS) \
 	floatingpoint.h	\
 	fmtmsg.h	\
 	fnmatch.h	\
+	fts.h		\
 	ftw.h		\
 	gelf.h		\
 	getopt.h	\
diff --git a/usr/src/head/fts.h b/usr/src/head/fts.h
new file mode 100644
index 0000000000..dc84d88183
--- /dev/null
+++ b/usr/src/head/fts.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 1989, 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.
+ */
+
+#ifndef	_FTS_H
+#define	_FTS_H
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+	struct _ftsent *fts_cur;	/* current node */
+	struct _ftsent *fts_child;	/* linked list of children */
+	struct _ftsent **fts_array;	/* sort array */
+	dev_t fts_dev;			/* starting device # */
+	char *fts_path;			/* path for this descent */
+	int fts_rfd;			/* fd for root */
+	size_t fts_pathlen;		/* sizeof(path) */
+	int fts_nitems;			/* elements in the sort array */
+	int (*fts_compar)();		/* compare function */
+
+#define	FTS_COMFOLLOW	0x0001		/* follow command line symlinks */
+#define	FTS_LOGICAL	0x0002		/* logical walk */
+#define	FTS_NOCHDIR	0x0004		/* don't change directories */
+#define	FTS_NOSTAT	0x0008		/* don't get stat info */
+#define	FTS_PHYSICAL	0x0010		/* physical walk */
+#define	FTS_SEEDOT	0x0020		/* return dot and dot-dot */
+#define	FTS_XDEV	0x0040		/* don't cross devices */
+#define	FTS_OPTIONMASK	0x00ff		/* valid user option mask */
+
+#define	FTS_NAMEONLY	0x1000		/* (private) child names only */
+#define	FTS_STOP	0x2000		/* (private) unrecoverable error */
+	int fts_options;		/* fts_open options, global flags */
+} FTS;
+
+typedef struct _ftsent {
+	struct _ftsent *fts_cycle;	/* cycle node */
+	struct _ftsent *fts_parent;	/* parent directory */
+	struct _ftsent *fts_link;	/* next file in directory */
+	long fts_number;		/* local numeric value */
+	void *fts_pointer;		/* local address value */
+	char *fts_accpath;		/* access path */
+	char *fts_path;			/* root path */
+	int fts_errno;			/* errno for this node */
+	int fts_symfd;			/* fd for symlink */
+	size_t fts_pathlen;		/* strlen(fts_path) */
+	size_t fts_namelen;		/* strlen(fts_name) */
+
+	ino_t fts_ino;			/* inode */
+	dev_t fts_dev;			/* device */
+	nlink_t fts_nlink;		/* link count */
+
+#define	FTS_ROOTPARENTLEVEL	-1
+#define	FTS_ROOTLEVEL		 0
+#define	FTS_MAXLEVEL		 0x7fffffff
+	int fts_level;		/* depth (-1 to N) */
+
+#define	FTS_D		 1		/* preorder directory */
+#define	FTS_DC		 2		/* directory that causes cycles */
+#define	FTS_DEFAULT	 3		/* none of the above */
+#define	FTS_DNR		 4		/* unreadable directory */
+#define	FTS_DOT		 5		/* dot or dot-dot */
+#define	FTS_DP		 6		/* postorder directory */
+#define	FTS_ERR		 7		/* error; errno is set */
+#define	FTS_F		 8		/* regular file */
+#define	FTS_INIT	 9		/* initialized only */
+#define	FTS_NS		10		/* stat(2) failed */
+#define	FTS_NSOK	11		/* no stat(2) requested */
+#define	FTS_SL		12		/* symbolic link */
+#define	FTS_SLNONE	13		/* symbolic link without target */
+	unsigned short fts_info;	/* user flags for FTSENT structure */
+
+#define	FTS_DONTCHDIR	 0x01		/* don't chdir .. to the parent */
+#define	FTS_SYMFOLLOW	 0x02		/* followed a symlink to get here */
+	unsigned short fts_flags;	/* private flags for FTSENT structure */
+
+#define	FTS_AGAIN	 1		/* read node again */
+#define	FTS_FOLLOW	 2		/* follow symbolic link */
+#define	FTS_NOINSTR	 3		/* no instructions */
+#define	FTS_SKIP	 4		/* discard node */
+	unsigned short fts_instr;	/* fts_set() instructions */
+
+	unsigned short fts_spare;	/* unused */
+
+	struct stat *fts_statp;		/* stat(2) information */
+	char fts_name[1];		/* file name */
+} FTSENT;
+
+FTSENT	*fts_children(FTS *, int);
+int	 fts_close(FTS *);
+FTS	*fts_open(char * const *, int,
+	    int (*)(const FTSENT **, const FTSENT **));
+FTSENT	*fts_read(FTS *);
+int	 fts_set(FTS *, FTSENT *, int);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* !_FTS_H */
diff --git a/usr/src/head/stdlib.h b/usr/src/head/stdlib.h
index 94eaab38fa..47b87d9ff5 100644
--- a/usr/src/head/stdlib.h
+++ b/usr/src/head/stdlib.h
@@ -290,6 +290,8 @@ extern char *ulltostr(unsigned long long, char *);
 extern uint32_t arc4random(void);
 extern void arc4random_buf(void *, size_t);
 extern uint32_t arc4random_uniform(uint32_t);
+extern void *reallocarray(void *, size_t, size_t);
+extern long long strtonum(const char *, long long, long long, const char **);
 
 #endif	/* !_STRICT_SYBMOLS */