Add -Btime, -Bnewer, -Bmin, -newerB[Bacmt], -newer[acmt]B options to

work with the st_birthtime field of struct stat.

'B' has been chosen to match the format specifier from stat(1).

Approved by:	jhb
MFC after:	2 weeks

4 files changed, 59 insertions, 4 deletions

diff --git a/usr.bin/find/find.1 b/usr.bin/find/find.1
index bf65413..1c4b1fe 100644
--- a/usr.bin/find/find.1
+++ b/usr.bin/find/find.1
@@ -174,6 +174,35 @@ primary.
 .El
 .Sh PRIMARIES
 .Bl -tag -width indent
+.It Ic -Bmin Ar n
+True if the difference between the time of a file's inode creation
+and the time
+.Nm
+was started, rounded up to the next full minute, is
+.Ar n
+minutes.
+.It Ic -Bnewer Ar file
+Same as
+.Ic -newerBm .
+.It Ic -Btime Ar n Ns Op Cm smhdw
+If no units are specified, this primary evaluates to
+true if the difference between the time of a file's inode creation
+and the time
+.Nm
+was started, rounded up to the next full 24-hour period, is
+.Ar n
+24-hour periods.
+.Pp
+If units are specified, this primary evaluates to
+true if the difference between the time of last change of file status
+information and the time
+.Nm
+was started is exactly
+.Ar n
+units.
+Please refer to the
+.Ic -atime
+primary description for information on supported time units.
 .It Ic -acl
 May be used in conjunction with other options to locate
 files with extended ACLs.
@@ -497,12 +526,16 @@ True if the current file has a more recent last modification time than
 .It Ic -newer Ns Ar X Ns Ar Y Ar file
 True if the current file has a more recent last access time
 .Ar ( X Ns = Ns Cm a ) ,
+inode creation time
+.Ar ( X Ns = Ns Cm B ) ,
 change time
 .Ar ( X Ns = Ns Cm c ) ,
 or modification time
 .Ar ( X Ns = Ns Cm m )
 than the last access time
 .Ar ( Y Ns = Ns Cm a ) ,
+inode creation time
+.Ar ( Y Ns = Ns Cm B ) ,
 change time
 .Ar ( Y Ns = Ns Cm c ) ,
 or modification time
diff --git a/usr.bin/find/find.h b/usr.bin/find/find.h
index 59c70b6..7f1acaf 100644
--- a/usr.bin/find/find.h
+++ b/usr.bin/find/find.h
@@ -72,6 +72,8 @@ typedef	struct _plandata *creat_f(struct _option *, char ***);
 #define	F_IGNCASE	0x00010000	/* iname ipath iregex */
 #define	F_EXACTTIME	F_IGNCASE	/* -[acm]time units syntax */
 #define F_EXECPLUS	0x00020000	/* -exec ... {} + */
+#define	F_TIME_B	0x00040000	/* one of -Btime, -Bnewer, -newerB* */
+#define	F_TIME2_B	0x00080000	/* one of -newer?B */
 
 /* node definition */
 typedef struct _plandata {
diff --git a/usr.bin/find/function.c b/usr.bin/find/function.c
index 7052810..38bf813 100644
--- a/usr.bin/find/function.c
+++ b/usr.bin/find/function.c
@@ -234,10 +234,10 @@ nextarg(OPTION *option, char ***argvp)
 } /* nextarg() */
 
 /*
- * The value of n for the inode times (atime, ctime, and mtime) is a range,
- * i.e. n matches from (n - 1) to n 24 hour periods.  This interacts with
- * -n, such that "-mtime -1" would be less than 0 days, which isn't what the
- * user wanted.  Correct so that -1 is "less than 1".
+ * The value of n for the inode times (atime, birthtime, ctime, mtime) is a
+ * range, i.e. n matches from (n - 1) to n 24 hour periods.  This interacts
+ * with -n, such that "-mtime -1" would be less than 0 days, which isn't what
+ * the user wanted.  Correct so that -1 is "less than 1".
  */
 #define	TIME_CORRECT(p) \
 	if (((p)->flags & F_ELG_MASK) == F_LESSTHAN) \
@@ -248,6 +248,7 @@ nextarg(OPTION *option, char ***argvp)
  *
  *    True if the difference between the
  *		file access time (-amin)
+ *		file birth time (-Bmin)
  *		last change of file status information (-cmin)
  *		file modification time (-mmin)
  *    and the current time is n min periods.
@@ -261,6 +262,9 @@ f_Xmin(PLAN *plan, FTSENT *entry)
 	} else if (plan->flags & F_TIME_A) {
 		COMPARE((now - entry->fts_statp->st_atime +
 		    60 - 1) / 60, plan->t_data);
+	} else if (plan->flags & F_TIME_B) {
+		COMPARE((now - entry->fts_statp->st_birthtime +
+		    60 - 1) / 60, plan->t_data);
 	} else {
 		COMPARE((now - entry->fts_statp->st_mtime +
 		    60 - 1) / 60, plan->t_data);
@@ -287,6 +291,7 @@ c_Xmin(OPTION *option, char ***argvp)
  *
  *	True if the difference between the
  *		file access time (-atime)
+ *		file birth time (-Btime)
  *		last change of file status information (-ctime)
  *		file modification time (-mtime)
  *	and the current time is n 24 hour periods.
@@ -299,6 +304,8 @@ f_Xtime(PLAN *plan, FTSENT *entry)
 
 	if (plan->flags & F_TIME_A)
 		xtime = entry->fts_statp->st_atime;
+	else if (plan->flags & F_TIME_B)
+		xtime = entry->fts_statp->st_birthtime;
 	else if (plan->flags & F_TIME_C)
 		xtime = entry->fts_statp->st_ctime;
 	else
@@ -1065,6 +1072,8 @@ f_newer(PLAN *plan, FTSENT *entry)
 		return entry->fts_statp->st_ctime > plan->t_data;
 	else if (plan->flags & F_TIME_A)
 		return entry->fts_statp->st_atime > plan->t_data;
+	else if (plan->flags & F_TIME_B)
+		return entry->fts_statp->st_birthtime > plan->t_data;
 	else
 		return entry->fts_statp->st_mtime > plan->t_data;
 }
diff --git a/usr.bin/find/option.c b/usr.bin/find/option.c
index 718c2cd..0546355 100644
--- a/usr.bin/find/option.c
+++ b/usr.bin/find/option.c
@@ -68,6 +68,9 @@ static OPTION const options[] = {
 	{ "-and",	c_and,		NULL,		0 },
 	{ "-anewer",	c_newer,	f_newer,	F_TIME_A },
 	{ "-atime",	c_Xtime,	f_Xtime,	F_TIME_A },
+	{ "-Bmin",	c_Xmin,		f_Xmin,		F_TIME_B },
+	{ "-Bnewer",	c_newer,	f_newer,	F_TIME_B },
+	{ "-Btime",	c_Xtime,	f_Xtime,	F_TIME_B },
 	{ "-cmin",	c_Xmin,		f_Xmin,		F_TIME_C },
 	{ "-cnewer",	c_newer,	f_newer,	F_TIME_C },
 	{ "-ctime",	c_Xtime,	f_Xtime,	F_TIME_C },
@@ -95,14 +98,22 @@ static OPTION const options[] = {
 	{ "-name",	c_name,		f_name,		0 },
 	{ "-newer",	c_newer,	f_newer,	0 },
 	{ "-neweraa",	c_newer,	f_newer,	F_TIME_A | F_TIME2_A },
+	{ "-neweraB",	c_newer,	f_newer,	F_TIME_A | F_TIME2_B },
 	{ "-newerac",	c_newer,	f_newer,	F_TIME_A | F_TIME2_C },
 	{ "-neweram",	c_newer,	f_newer,	F_TIME_A },
 	{ "-newerat",	c_newer,	f_newer,	F_TIME_A | F_TIME2_T },
+	{ "-newerBa",	c_newer,	f_newer,	F_TIME_B | F_TIME2_A },
+	{ "-newerBB",	c_newer,	f_newer,	F_TIME_B | F_TIME2_B },
+	{ "-newerBc",	c_newer,	f_newer,	F_TIME_B | F_TIME2_C },
+	{ "-newerBm",	c_newer,	f_newer,	F_TIME_B },
+	{ "-newerBt",	c_newer,	f_newer,	F_TIME_B | F_TIME2_T },
 	{ "-newerca",	c_newer,	f_newer,	F_TIME_C | F_TIME2_A },
+	{ "-newercB",	c_newer,	f_newer,	F_TIME_C | F_TIME2_B },
 	{ "-newercc",	c_newer,	f_newer,	F_TIME_C | F_TIME2_C },
 	{ "-newercm",	c_newer,	f_newer,	F_TIME_C },
 	{ "-newerct",	c_newer,	f_newer,	F_TIME_C | F_TIME2_T },
 	{ "-newerma",	c_newer,	f_newer,	F_TIME2_A },
+	{ "-newermB",	c_newer,	f_newer,	F_TIME2_B },
 	{ "-newermc",	c_newer,	f_newer,	F_TIME2_C },
 	{ "-newermm",	c_newer,	f_newer,	0 },
 	{ "-newermt",	c_newer,	f_newer,	F_TIME2_T },