check for valid optarg before using strdup

Signed-off-by: Serge Ziryukin <ftrvxmtrx@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/pacman/pacman.c b/src/pacman/pacman.c
index 744b1899..e601a14d 100644
--- a/src/pacman/pacman.c
+++ b/src/pacman/pacman.c
@@ -495,6 +495,7 @@ static int parseargs(int argc, char *argv[])
 				setarch(optarg);
 				break;
 			case OP_PRINTFORMAT:
+				check_optarg();
 				config->print_format = strdup(optarg);
 				break;
 			case 'Q': config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_QUERY); break;