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tools: kwboot: Allow to mix positional arguments with option -b

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Commit 9e6d71d2b5 ("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: 9e6d71d2b5 ("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>
This commit is contained in:
Pali Rohár 2022-03-07 19:03:09 +01:00 committed by Stefan Roese
parent 3782f55ae8
commit c497ae7023
1 changed files with 14 additions and 4 deletions
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18
tools/kwboot.c
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@ -2073,7 +2073,8 @@ main(int argc, char **argv)
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 @@ main(int argc, char **argv)
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) {