From 712b13756a09014ef730c8f9b96da4dc2f09b762 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Fri, 11 Nov 2022 14:59:54 -0500
Subject: exec: Fix index overflow parsing -exec +

---
 src/exec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/exec.c b/src/exec.c
index 759582e..a1cbde1 100644
--- a/src/exec.c
+++ b/src/exec.c
@@ -173,7 +173,7 @@ struct bfs_exec *bfs_exec_parse(const struct bfs_ctx *ctx, char **argv, enum bfs
 			goto fail;
 		} else if (strcmp(arg, ";") == 0) {
 			break;
-		} else if (strcmp(arg, "+") == 0) {
+		} else if (execbuf->tmpl_argc > 0 && strcmp(arg, "+") == 0) {
 			const char *prev = execbuf->tmpl_argv[execbuf->tmpl_argc - 1];
 			if (!(execbuf->flags & BFS_EXEC_CONFIRM) && strcmp(prev, "{}") == 0) {
 				execbuf->flags |= BFS_EXEC_MULTI;
-- 
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