From 9f1863d45fe596e258596a4b4cc9a4064bcb11d3 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Sat, 4 Feb 2017 21:03:59 -0500
Subject: Implement -nouser and -nogroup

---
 bfs.h               |  2 ++
 eval.c              | 26 ++++++++++++++++++++++++++
 parse.c             | 16 ++++++++++++++++
 tests.sh            | 19 ++++++++++++++++++-
 tests/test_0128.out |  0
 tests/test_0129.out |  0
 6 files changed, 62 insertions(+), 1 deletion(-)
 create mode 100644 tests/test_0128.out
 create mode 100644 tests/test_0129.out

diff --git a/bfs.h b/bfs.h
index e5882ac..84874d6 100644
--- a/bfs.h
+++ b/bfs.h
@@ -288,6 +288,8 @@ bool eval_used(const struct expr *expr, struct eval_state *state);
 
 bool eval_gid(const struct expr *expr, struct eval_state *state);
 bool eval_uid(const struct expr *expr, struct eval_state *state);
+bool eval_nogroup(const struct expr *expr, struct eval_state *state);
+bool eval_nouser(const struct expr *expr, struct eval_state *state);
 
 bool eval_depth(const struct expr *expr, struct eval_state *state);
 bool eval_empty(const struct expr *expr, struct eval_state *state);
diff --git a/eval.c b/eval.c
index 4494cff..35501e0 100644
--- a/eval.c
+++ b/eval.c
@@ -18,6 +18,8 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <fnmatch.h>
+#include <grp.h>
+#include <pwd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -225,6 +227,30 @@ bool eval_uid(const struct expr *expr, struct eval_state *state) {
 	return do_cmp(expr, statbuf->st_uid);
 }
 
+/**
+ * -nogroup test.
+ */
+bool eval_nogroup(const struct expr *expr, struct eval_state *state) {
+	const struct stat *statbuf = fill_statbuf(state);
+	if (!statbuf) {
+		return false;
+	}
+
+	return getgrgid(statbuf->st_gid) == NULL;
+}
+
+/**
+ * -nouser test.
+ */
+bool eval_nouser(const struct expr *expr, struct eval_state *state) {
+	const struct stat *statbuf = fill_statbuf(state);
+	if (!statbuf) {
+		return false;
+	}
+
+	return getpwuid(statbuf->st_uid) == NULL;
+}
+
 /**
  * -delete action.
  */
diff --git a/parse.c b/parse.c
index 7f656c3..d0168a9 100644
--- a/parse.c
+++ b/parse.c
@@ -1205,6 +1205,13 @@ static struct expr *parse_newerxy(struct parser_state *state, int arg1, int arg2
 	return expr;
 }
 
+/**
+ * Parse -nogroup.
+ */
+static struct expr *parse_nogroup(struct parser_state *state, int arg1, int arg2) {
+	return parse_nullary_test(state, eval_nogroup);
+}
+
 /**
  * Parse -nohidden.
  */
@@ -1225,6 +1232,13 @@ static struct expr *parse_noleaf(struct parser_state *state, int arg1, int arg2)
 	return parse_nullary_option(state);
 }
 
+/**
+ * Parse -nouser.
+ */
+static struct expr *parse_nouser(struct parser_state *state, int arg1, int arg2) {
+	return parse_nullary_test(state, eval_nouser);
+}
+
 /**
  * Parse a permission mode like chmod(1).
  */
@@ -1857,10 +1871,12 @@ static const struct table_entry parse_table[] = {
 	{"newer", false, parse_acnewer, MTIME},
 	{"newer", true, parse_newerxy},
 	{"nocolor", false, parse_color, false},
+	{"nogroup", false, parse_nogroup},
 	{"nohidden", false, parse_nohidden},
 	{"noignore_readdir_race", false, parse_ignore_races, false},
 	{"noleaf", false, parse_noleaf},
 	{"not"},
+	{"nouser", false, parse_nouser},
 	{"nowarn", false, parse_warn, false},
 	{"o"},
 	{"ok", false, parse_exec, EXEC_CONFIRM},
diff --git a/tests.sh b/tests.sh
index 06d319f..5a7e650 100755
--- a/tests.sh
+++ b/tests.sh
@@ -787,9 +787,26 @@ function test_0127() {
     bfs_diff basic -inum "$inode"
 }
 
+function test_0127() {
+    [ "$BSD" -o "$GNU" ] || return 0
+
+    local inode="$(ls -id basic/k/foo/bar | cut -f1 -d' ')"
+    bfs_diff basic -inum "$inode"
+}
+
+function test_0128() {
+    [ "$BSD" -o "$GNU" ] || return 0
+    bfs_diff basic -nogroup
+}
+
+function test_0129() {
+    [ "$BSD" -o "$GNU" ] || return 0
+    bfs_diff basic -nouser
+}
+
 result=0
 
-for i in {1..127}; do
+for i in {1..129}; do
     test="test_$(printf '%04d' $i)"
 
     if [ -t 1 ]; then
diff --git a/tests/test_0128.out b/tests/test_0128.out
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_0129.out b/tests/test_0129.out
new file mode 100644
index 0000000..e69de29
-- 
cgit v1.2.3