Check for readdir() errors everywhere.

1 files changed, 16 insertions, 4 deletions

diff --git a/eval.c b/eval.c
index 1e88a93..80df040 100644
--- a/eval.c
+++ b/eval.c
@@ -498,14 +498,23 @@ bool eval_empty(const struct expr *expr, struct eval_state *state) {
 
 		ret = true;
 
-		struct dirent *de;
-		while ((de = readdir(dir)) != NULL) {
+		while (true) {
+			struct dirent *de;
+			if (xreaddir(dir, &de) != 0) {
+				eval_error(state);
+				goto done_dir;
+			}
+			if (!de) {
+				break;
+			}
+
 			if (strcmp(de->d_name, ".") != 0 && strcmp(de->d_name, "..") != 0) {
 				ret = false;
 				break;
 			}
 		}
 
+	done_dir:
 		closedir(dir);
 	} else {
 		const struct stat *statbuf = fill_statbuf(state);
@@ -1038,8 +1047,11 @@ static int infer_fdlimit(const struct cmdline *cmdline) {
 		// Account for 'dir' itself
 		nopen = -1;
 
-		struct dirent *de;
-		while ((de = readdir(dir)) != NULL) {
+		while (true) {
+			struct dirent *de;
+			if (xreaddir(dir, &de) != 0 || !de) {
+				break;
+			}
 			if (strcmp(de->d_name, ".") != 0 && strcmp(de->d_name, "..") != 0) {
 				++nopen;
 			}