Date: Tue, 6 Oct 2020 08:18:10 +0000 (UTC) From: Baptiste Daroussin <bapt@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r366472 - head/usr.bin/backlight Message-ID: <202010060818.0968IABV016328@repo.freebsd.org>
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Author: bapt Date: Tue Oct 6 08:18:09 2020 New Revision: 366472 URL: https://svnweb.freebsd.org/changeset/base/366472 Log: backlight: check the lenght if the input before trimming '%' Reported by: hps Reviewed by: manu Differential Revision: https://reviews.freebsd.org/D26693 Modified: head/usr.bin/backlight/backlight.c Modified: head/usr.bin/backlight/backlight.c ============================================================================== --- head/usr.bin/backlight/backlight.c Tue Oct 6 08:05:19 2020 (r366471) +++ head/usr.bin/backlight/backlight.c Tue Oct 6 08:18:09 2020 (r366472) @@ -145,7 +145,8 @@ main(int argc, char *argv[]) if (argc == 1) { /* ignore a trailing % for user friendlyness */ - if (argv[0][strlen(argv[0]) - 1] == '%') + if (strlen(argv[0]) > 0 && + argv[0][strlen(argv[0]) - 1] == '%') argv[0][strlen(argv[0]) - 1] = '\0'; percent = strtonum(argv[0], 0, 100, &percent_error); if (percent_error)
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