If `-6` is used without `-f`, the usage error message is "-6 used before -f", which can be misconstrued as warning that both options were used but in the wrong order. Change the option-parsing to allow `-6` to appear before `-f` and the error- message in the case that `-6` was used without `-f`. Link: http://bugs.debian.org/610596 Signed-off-by: Jeremy Sowden <azazel@xxxxxxxxxx> --- ipvsadm.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/ipvsadm.c b/ipvsadm.c index 42f31a20e596..889128017bd1 100644 --- a/ipvsadm.c +++ b/ipvsadm.c @@ -523,7 +523,7 @@ static int parse_options(int argc, char **argv, struct ipvs_command_entry *ce, unsigned long long *options, unsigned int *format) { - int c, parse; + int c, parse, ipv6 = 0; poptContext context; char *optarg = NULL, sched_flags_arg[128]; struct poptOption options_table[] = { @@ -829,12 +829,7 @@ parse_options(int argc, char **argv, struct ipvs_command_entry *ce, *format |= FMT_EXACT; break; case '6': - if (ce->svc.fwmark) { - ce->svc.af = AF_INET6; - ce->svc.netmask = 128; - } else { - fail(2, "-6 used before -f\n"); - } + ipv6 = 1; break; case 'o': set_option(options, OPTC_ONEPACKET); @@ -935,6 +930,14 @@ parse_options(int argc, char **argv, struct ipvs_command_entry *ce, return -1; } + if (ipv6) { + if (ce->svc.fwmark) { + ce->svc.af = AF_INET6; + ce->svc.netmask = 128; + } else + fail(2, "-6 used without -f\n"); + } + if (ce->cmd == CMD_TIMEOUT) { char *optarg1, *optarg2; -- 2.45.2