From 0609e6f29719a7e88b8233d6bd5b75509a2d59f5 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Tue, 20 Dec 2016 21:23:02 -0500
Subject: Implement -sparse from FreeBSD find
---
bfs.h | 1 +
eval.c | 13 +++++++++++++
parse.c | 8 ++++++++
3 files changed, 22 insertions(+)
diff --git a/bfs.h b/bfs.h
index 22fee84..e391428 100644
--- a/bfs.h
+++ b/bfs.h
@@ -292,6 +292,7 @@ bool eval_inum(const struct expr *expr, struct eval_state *state);
bool eval_links(const struct expr *expr, struct eval_state *state);
bool eval_samefile(const struct expr *expr, struct eval_state *state);
bool eval_size(const struct expr *expr, struct eval_state *state);
+bool eval_sparse(const struct expr *expr, struct eval_state *state);
bool eval_type(const struct expr *expr, struct eval_state *state);
bool eval_xtype(const struct expr *expr, struct eval_state *state);
diff --git a/eval.c b/eval.c
index b62c1b4..2497455 100644
--- a/eval.c
+++ b/eval.c
@@ -817,6 +817,19 @@ bool eval_size(const struct expr *expr, struct eval_state *state) {
return do_cmp(expr, size);
}
+/**
+ * -sparse test.
+ */
+bool eval_sparse(const struct expr *expr, struct eval_state *state) {
+ const struct stat *statbuf = fill_statbuf(state);
+ if (!statbuf) {
+ return false;
+ }
+
+ blkcnt_t expected = (statbuf->st_size + 511)/512;
+ return statbuf->st_blocks < expected;
+}
+
/**
* -type test.
*/
diff --git a/parse.c b/parse.c
index 33f928b..64ed11b 100644
--- a/parse.c
+++ b/parse.c
@@ -1661,6 +1661,13 @@ fail:
return NULL;
}
+/**
+ * Parse -sparse.
+ */
+static struct expr *parse_sparse(struct parser_state *state, int arg1, int arg2) {
+ return parse_nullary_test(state, eval_sparse);
+}
+
/**
* Parse -x?type [bcdpfls].
*/
@@ -1837,6 +1844,7 @@ static const struct table_entry parse_table[] = {
{"regextype", false, parse_regextype},
{"samefile", false, parse_samefile},
{"size", false, parse_size},
+ {"sparse", false, parse_sparse},
{"true", false, parse_const, true},
{"type", false, parse_type, false},
{"uid", false, parse_user},
--
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