tools: kwboot: Allow to mix positional arguments with option -b
Commit 9e6d71d2b55f ("tools: kwboot: Allow to use -b without image path as
the last getopt() option") broke usage of kwboot with following arguments:
kwboot -t -B 115200 /dev/ttyUSB0 -b u-boot-spl.kwb
Fix parsing of option -b with optional argument again.
Fixes: 9e6d71d2b55f ("tools: kwboot: Allow to use -b without image path as the last getopt() option")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reported-by: Tony Dinh <mibodhi@gmail.com>
Tested-by: Tony Dinh <mibodhi at gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/tools/kwboot.c b/tools/kwboot.c
index 3b45e19..9f2dd2d 100644
--- a/tools/kwboot.c
+++ b/tools/kwboot.c
@@ -2073,7 +2073,8 @@
bootmsg = 1;
if (prev_optind == optind)
goto usage;
- if (optind < argc - 1 && argv[optind] && argv[optind][0] != '-')
+ /* Option -b could have optional argument which specify image path */
+ if (optind < argc && argv[optind] && argv[optind][0] != '-')
imgpath = argv[optind++];
break;
@@ -2128,10 +2129,19 @@
if (!bootmsg && !term && !debugmsg && !imgpath)
goto usage;
- ttypath = argv[optind++];
-
- if (optind != argc)
+ /*
+ * If there is no remaining argument but optional imgpath was parsed
+ * then it means that optional imgpath was eaten by getopt parser.
+ * Reassing imgpath to required ttypath argument.
+ */
+ if (optind == argc && imgpath) {
+ ttypath = imgpath;
+ imgpath = NULL;
+ } else if (optind + 1 == argc) {
+ ttypath = argv[optind];
+ } else {
goto usage;
+ }
/* boot and debug message use baudrate 115200 */
if (((bootmsg && !imgpath) || debugmsg) && baudrate != 115200) {