diff --git a/arp.c b/arp.c
index 5db71a7..30dd56d 100644
--- a/arp.c
+++ b/arp.c
@@ -93,7 +93,7 @@ struct hwtype *hw; /* current hardware type */
int sockfd = 0; /* active socket descriptor */
int hw_set = 0; /* flag if hw-type was set (-H) */
char device[16] = ""; /* current device */
-static void usage(void);
+static void usage(int rc);
/* Delete an entry from the ARP cache. */
static int arp_del(char **args)
@@ -169,14 +169,14 @@ static int arp_del(char **args)
}
if (!strcmp(*args, "dev")) {
if (*++args == NULL)
- usage();
+ usage(E_OPTERR);
safe_strncpy(device, *args, sizeof(device));
args++;
continue;
}
if (!strcmp(*args, "netmask")) {
if (*++args == NULL)
- usage();
+ usage(E_OPTERR);
if (strcmp(*args, "255.255.255.255") != 0) {
safe_strncpy(host, *args, (sizeof host));
if (ap->input(0, host, &ss) < 0) {
@@ -190,7 +190,7 @@ static int arp_del(char **args)
args++;
continue;
}
- usage();
+ usage(E_OPTERR);
}
// if neighter priv nor pub is given, work on both
@@ -346,14 +346,14 @@ static int arp_set(char **args)
}
if (!strcmp(*args, "dev")) {
if (*++args == NULL)
- usage();
+ usage(E_OPTERR);
safe_strncpy(device, *args, sizeof(device));
args++;
continue;
}
if (!strcmp(*args, "netmask")) {
if (*++args == NULL)
- usage();
+ usage(E_OPTERR);
if (strcmp(*args, "255.255.255.255") != 0) {
safe_strncpy(host, *args, (sizeof host));
if (ap->input(0, host, &ss) < 0) {
@@ -367,7 +367,7 @@ static int arp_set(char **args)
args++;
continue;
}
- usage();
+ usage(E_OPTERR);
}
/* Fill in the remainder of the request. */
@@ -621,7 +621,7 @@ static void version(void)
exit(E_VERSION);
}
-static void usage(void)
+static void usage(int rc)
{
fprintf(stderr, _("Usage:\n arp [-vn] [<HW>] [-i <if>] [-a] [<hostname>] <-Display ARP cache\n"));
fprintf(stderr, _(" arp [-v] [-i <if>] -d <host> [pub] <-Delete ARP entry\n"));
@@ -643,7 +643,7 @@ static void usage(void)
fprintf(stderr, _(" <HW>=Use '-H <hw>' to specify hardware address type. Default: %s\n"), DFLT_HW);
fprintf(stderr, _(" List of possible hardware types (which support ARP):\n"));
print_hwlist(1); /* 1 = ARPable */
- exit(E_USAGE);
+ exit(rc);
}
int main(int argc, char **argv)
@@ -745,10 +745,11 @@ int main(int argc, char **argv)
case 'V':
version();
- case '?':
case 'h':
+ usage(E_USAGE);
+ case '?':
default:
- usage();
+ usage(E_OPTERR);
}
if (ap->af != AF_INET) {
@@ -797,7 +798,7 @@ int main(int argc, char **argv)
break;
default:
- usage();
+ usage(E_OPTERR);
}
exit(what);
diff --git a/ipmaddr.c b/ipmaddr.c
index e4ed41d..c45b62a 100644
--- a/ipmaddr.c
+++ b/ipmaddr.c
@@ -53,14 +53,14 @@ static void version(void)
exit(E_VERSION);
}
-static void usage(void) __attribute__((noreturn));
+static void usage(int rc) __attribute__((noreturn));
-static void usage(void)
+static void usage(int rc)
{
fprintf(stderr, _("Usage: ipmaddr [ add | del ] MULTIADDR dev STRING\n"));
fprintf(stderr, _(" ipmaddr show [ dev STRING ] [ ipv4 | ipv6 | link | all ]\n"));
fprintf(stderr, _(" ipmaddr -V | -version\n"));
- exit(E_USAGE);
+ exit(rc);
}
static void print_lla(FILE *fp, int len, unsigned char *addr)
@@ -294,7 +294,7 @@ static int multiaddr_list(int argc, char **argv)
NEXT_ARG();
l = strlen(*argv);
if (l <= 0 || l >= sizeof(filter_dev))
- usage();
+ usage(E_OPTERR);
strncpy(filter_dev, *argv, sizeof (filter_dev));
} else if (strcmp(*argv, "all") == 0) {
filter_family = AF_UNSPEC;
@@ -307,7 +307,7 @@ static int multiaddr_list(int argc, char **argv)
} else {
l = strlen(*argv);
if (l <= 0 || l >= sizeof(filter_dev))
- usage();
+ usage(E_OPTERR);
strncpy(filter_dev, *argv, sizeof (filter_dev));
}
argv++; argc--;
@@ -339,18 +339,18 @@ int multiaddr_modify(int cmd, int argc, char **argv)
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
if (ifr.ifr_name[0])
- usage();
+ usage(E_OPTERR);
strncpy(ifr.ifr_name, *argv, IFNAMSIZ);
} else {
if (ifr.ifr_hwaddr.sa_data[0])
- usage();
+ usage(E_OPTERR);
if (parse_lla(*argv, ifr.ifr_hwaddr.sa_data) < 0)
- usage();
+ usage(E_OPTERR);
}
argc--; argv++;
}
if (ifr.ifr_name[0] == 0)
- usage();
+ usage(E_OPTERR);
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0) {
@@ -378,7 +378,7 @@ int do_multiaddr(int argc, char **argv)
if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
|| matches(*argv, "lst") == 0)
return multiaddr_list(argc-1, argv+1);
- usage();
+ usage(E_OPTERR);
}
int preferred_family = AF_UNSPEC;
@@ -408,13 +408,13 @@ int main(int argc, char **argv)
argc--;
argv++;
if (argc <= 1)
- usage();
+ usage(E_OPTERR);
if (strcmp(argv[1], "inet") == 0)
preferred_family = AF_INET;
else if (strcmp(argv[1], "inet6") == 0)
preferred_family = AF_INET6;
else
- usage();
+ usage(E_OPTERR);
} else if (matches(argv[1], "-stats") == 0 ||
matches(argv[1], "-statistics") == 0) {
++show_stats;
@@ -423,7 +423,7 @@ int main(int argc, char **argv)
} else if ((matches(argv[1], "-V") == 0) || matches(argv[1], "--version") == 0) {
version();
} else
- usage();
+ usage(E_OPTERR);
argc--; argv++;
}
diff --git a/include/util-ank.h b/include/util-ank.h
index c8fcd08..c78604a 100644
--- a/include/util-ank.h
+++ b/include/util-ank.h
@@ -23,7 +23,7 @@ extern int resolve_hosts;
#define NEXT_ARG() \
argv++; \
if (--argc <= 0) \
- usage();
+ usage(E_OPTERR);
typedef struct
{
diff --git a/iptunnel.c b/iptunnel.c
index 2215d68..42b2a9e 100644
--- a/iptunnel.c
+++ b/iptunnel.c
@@ -76,9 +76,9 @@ static void version(void)
exit(E_VERSION);
}
-static void usage(void) __attribute__((noreturn));
+static void usage(int rc) __attribute__((noreturn));
-static void usage(void)
+static void usage(int rc)
{
fprintf(stderr, _("Usage: iptunnel { add | change | del | show } [ NAME ]\n"));
fprintf(stderr, _(" [ mode { ipip | gre | sit } ] [ remote ADDR ] [ local ADDR ]\n"));
@@ -90,7 +90,7 @@ static void usage(void)
fprintf(stderr, _(" TOS := { NUMBER | inherit }\n"));
fprintf(stderr, _(" TTL := { 1..255 | inherit }\n"));
fprintf(stderr, _(" KEY := { DOTTED_QUAD | NUMBER }\n"));
- exit(E_USAGE);
+ exit(rc);
}
static int do_ioctl_get_ifindex(char *dev)
@@ -217,18 +217,18 @@ static int parse_args(int argc, char **argv, struct ip_tunnel_parm *p)
NEXT_ARG();
if (strcmp(*argv, "ipip") == 0) {
if (p->iph.protocol)
- usage();
+ usage(E_OPTERR);
p->iph.protocol = IPPROTO_IPIP;
} else if (strcmp(*argv, "gre") == 0) {
if (p->iph.protocol)
- usage();
+ usage(E_OPTERR);
p->iph.protocol = IPPROTO_GRE;
} else if (strcmp(*argv, "sit") == 0) {
if (p->iph.protocol)
- usage();
+ usage(E_OPTERR);
p->iph.protocol = IPPROTO_IPV6;
} else
- usage();
+ usage(E_OPTERR);
} else if (strcmp(*argv, "key") == 0) {
unsigned uval;
NEXT_ARG();
@@ -238,7 +238,7 @@ static int parse_args(int argc, char **argv, struct ip_tunnel_parm *p)
p->i_key = p->o_key = get_addr32(*argv);
else {
if (scan_number(*argv, &uval)<0)
- usage();
+ usage(E_OPTERR);
p->i_key = p->o_key = htonl(uval);
}
} else if (strcmp(*argv, "ikey") == 0) {
@@ -249,7 +249,7 @@ static int parse_args(int argc, char **argv, struct ip_tunnel_parm *p)
p->o_key = get_addr32(*argv);
else {
if (scan_number(*argv, &uval)<0)
- usage();
+ usage(E_OPTERR);
p->i_key = htonl(uval);
}
} else if (strcmp(*argv, "okey") == 0) {
@@ -260,7 +260,7 @@ static int parse_args(int argc, char **argv, struct ip_tunnel_parm *p)
p->o_key = get_addr32(*argv);
else {
if (scan_number(*argv, &uval)<0)
- usage();
+ usage(E_OPTERR);
p->o_key = htonl(uval);
}
} else if (strcmp(*argv, "seq") == 0) {
@@ -295,9 +295,9 @@ static int parse_args(int argc, char **argv, struct ip_tunnel_parm *p)
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (scan_number(*argv, &uval)<0)
- usage();
+ usage(E_OPTERR);
if (uval > 255)
- usage();
+ usage(E_OPTERR);
p->iph.ttl = uval;
}
} else if (strcmp(*argv, "tos") == 0) {
@@ -305,15 +305,15 @@ static int parse_args(int argc, char **argv, struct ip_tunnel_parm *p)
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (scan_number(*argv, &uval)<0)
- usage();
+ usage(E_OPTERR);
if (uval > 255)
- usage();
+ usage(E_OPTERR);
p->iph.tos = uval;
} else
p->iph.tos = 1;
} else {
if (p->name[0])
- usage();
+ usage(E_OPTERR);
safe_strncpy(p->name, *argv, IFNAMSIZ);
}
argc--; argv++;
@@ -574,7 +574,7 @@ int do_iptunnel(int argc, char **argv)
} else
return do_show(0, NULL);
- usage();
+ usage(E_OPTERR);
}
@@ -605,13 +605,13 @@ int main(int argc, char **argv)
argc--;
argv++;
if (argc <= 1)
- usage();
+ usage(E_OPTERR);
if (strcmp(argv[1], "inet") == 0)
preferred_family = AF_INET;
else if (strcmp(argv[1], "inet6") == 0)
preferred_family = AF_INET6;
else
- usage();
+ usage(E_OPTERR);
} else if (matches(argv[1], "-stats") == 0 ||
matches(argv[1], "-statistics") == 0) {
++show_stats;
@@ -620,7 +620,7 @@ int main(int argc, char **argv)
} else if ((matches(argv[1], "-V") == 0) || (matches(argv[1], "--version") == 0)) {
version();
} else
- usage();
+ usage(E_OPTERR);
argc--; argv++;
}
diff --git a/nameif.c b/nameif.c
index b280e59..13e3033 100644
--- a/nameif.c
+++ b/nameif.c
@@ -192,10 +192,10 @@ struct option lopt[] = {
{NULL},
};
-void usage(void)
+void usage(int rc)
{
fprintf(stderr, _("usage: nameif [-c configurationfile] [-s] {ifname macaddress}\n"));
- exit(E_USAGE);
+ exit(rc);
}
int main(int ac, char **av)
@@ -214,7 +214,7 @@ int main(int ac, char **av)
switch (c) {
default:
case '?':
- usage();
+ usage(E_OPTERR);
case 'c':
fname = optarg;
break;
@@ -232,7 +232,7 @@ int main(int ac, char **av)
char pos[30];
if ((ac-optind) & 1)
- usage();
+ usage(E_OPTERR);
if (strlen(av[optind])+1>IFNAMSIZ)
complain(_("interface name `%s' too long"), av[optind]);
safe_strncpy(ch->ifname, av[optind], sizeof(ch->ifname));
diff --git a/plipconfig.c b/plipconfig.c
index 86fa890..1caeed3 100644
--- a/plipconfig.c
+++ b/plipconfig.c
@@ -57,12 +57,12 @@ static void version(void)
exit(E_VERSION);
}
-void usage(void)
+void usage(int rc)
{
fprintf(stderr, _("Usage: plipconfig interface [nibble NN] [trigger NN]\n"));
fprintf(stderr, _(" plipconfig -V | --version\n"));
fprintf(stderr, _(" plipconfig -h | --help\n"));
- exit(E_USAGE);
+ exit(rc);
}
void print_plip(void)
@@ -89,16 +89,18 @@ int main(int argc, char **argv)
argc--;
argv++;
while (argv[0] && *argv[0] == '-') {
- if (!strcmp(*argv, "-V") || !strcmp(*argv, "--version"))
+ if ((!strcmp(*argv, "-V") || !strcmp(*argv, "--version")) && argc==1)
version();
+ if ((!strcmp(*argv, "-h") || !strcmp(*argv, "--help")) && argc==1)
+ usage(E_USAGE);
else
- usage();
+ usage(E_OPTERR);
argv++;
argc--;
}
if (argc == 0)
- usage();
+ usage(E_OPTERR);
spp = argv;
safe_strncpy(ifr.ifr_name, *spp++, IFNAMSIZ);
@@ -117,19 +119,19 @@ int main(int argc, char **argv)
while (*spp != (char *) NULL) {
if (!strcmp(*spp, "nibble")) {
if (*++spp == NULL)
- usage();
+ usage(E_OPTERR);
plip->nibble = atoi(*spp);
spp++;
continue;
}
if (!strcmp(*spp, "trigger")) {
if (*++spp == NULL)
- usage();
+ usage(E_OPTERR);
plip->trigger = atoi(*spp);
spp++;
continue;
}
- usage();
+ usage(E_OPTERR);
}
plip->pcmd = PLIP_SET_TIMEOUT;
diff --git a/slattach.c b/slattach.c
index 5c81584..dbb2658 100644
--- a/slattach.c
+++ b/slattach.c
@@ -581,7 +581,7 @@ sig_catch(int sig)
static void
-usage(void)
+usage(int rc)
{
char *usage_msg = "Usage: slattach [-ehlLmnqv] "
#ifdef SIOCSKEEPALIVE
@@ -594,7 +594,7 @@ usage(void)
" slattach -V | --version\n";
fputs(usage_msg, stderr);
- exit(E_USAGE);
+ exit(rc);
}
@@ -691,7 +691,7 @@ main(int argc, char *argv[])
/*NOTREACHED*/
default:
- usage();
+ usage(E_OPTERR);
/*NOTREACHED*/
}
@@ -707,7 +707,7 @@ main(int argc, char *argv[])
opt_m++;
/* Is a terminal given? */
- if (optind != (argc - 1)) usage();
+ if (optind != (argc - 1)) usage(E_OPTERR);
safe_strncpy(path_buf, argv[optind], sizeof(path_buf));
if (!strcmp(path_buf, "-")) {
opt_e = 1;
diff --git a/netstat.c.old b/netstat.c
index dbcba2b..d04f0ff 100644
--- a/netstat.c.old
+++ b/netstat.c
@@ -2286,7 +2286,7 @@ int main
if(argc == optind + 1) {
if((reptimer = atoi(argv[optind])) <= 0)
- usage(E_USAGE);
+ usage(E_OPTERR);
flag_cnt++;
}
diff --git a/route.c.old b/route.c
index f86bb8e..b0a885e 100644
--- a/route.c.old
+++ b/route.c
@@ -186,6 +186,7 @@ int main(int argc, char **argv)
case 'V':
version();
case 'h':
+ usage(E_USAGE);
case '?':
opt_h++;
break;
@@ -198,7 +199,7 @@ int main(int argc, char **argv)
if (opt_h) {
if (!afname[0])
- usage(E_USAGE);
+ usage(E_OPTERR);
else
what = RTACTION_HELP;
} else {