Differential D32709 Diff 98247 sbin/ifconfig/ifconfig.c

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sbin/ifconfig/ifconfig.c

Show First 20 Lines • Show All 110 Lines • ▼ Show 20 Lines	static bool group_member(const char ifname, const char match,
const char *nomatch);		const char *nomatch);
static int ifconfig(int argc, char const argv, int iscreate,		static int ifconfig(int argc, char const argv, int iscreate,
const struct afswtch *afp);		const struct afswtch *afp);
static void status(const struct afswtch afp, const struct sockaddr_dl sdl,		static void status(const struct afswtch afp, const struct sockaddr_dl sdl,
struct ifaddrs *ifa);		struct ifaddrs *ifa);
static void tunnel_status(int s);		static void tunnel_status(int s);
static _Noreturn void usage(void);		static _Noreturn void usage(void);

static int getifflags(const char *ifname, int us);		static int getifflags(const char *ifname, int us, bool err_ok);

static struct afswtch af_getbyname(const char name);		static struct afswtch af_getbyname(const char name);
static struct afswtch *af_getbyfamily(int af);		static struct afswtch *af_getbyfamily(int af);
static void af_other_status(int);		static void af_other_status(int);

void printifnamemaybe(void);		void printifnamemaybe(void);

static struct option *opts = NULL;		static struct option *opts = NULL;
▲ Show 20 Lines • Show All 470 Lines • ▼ Show 20 Lines	#endif
* which doesn't require building, sorting, and searching the entire		* which doesn't require building, sorting, and searching the entire
* system address list		* system address list
*/		*/
if ((argc > 0) && (ifname != NULL)) {		if ((argc > 0) && (ifname != NULL)) {
iflen = strlcpy(name, ifname, sizeof(name));		iflen = strlcpy(name, ifname, sizeof(name));
if (iflen >= sizeof(name)) {		if (iflen >= sizeof(name)) {
warnx("%s: interface name too long, skipping", ifname);		warnx("%s: interface name too long, skipping", ifname);
} else {		} else {
flags = getifflags(name, -1);		flags = getifflags(name, -1, false);
if (!(((flags & IFF_CANTCONFIG) != 0) \|\|		if (!(((flags & IFF_CANTCONFIG) != 0) \|\|
(downonly && (flags & IFF_UP) != 0) \|\|		(downonly && (flags & IFF_UP) != 0) \|\|
(uponly && (flags & IFF_UP) == 0)))		(uponly && (flags & IFF_UP) == 0)))
ifconfig(argc, argv, 0, afp);		ifconfig(argc, argv, 0, afp);
}		}
goto done;		goto done;
}		}

▲ Show 20 Lines • Show All 380 Lines • ▼ Show 20 Lines	if (p->c_parameter == NEXTARG && p->c_u.c_func) {
p->c_u.c_func(*argv, p->c_parameter, s, afp);		p->c_u.c_func(*argv, p->c_parameter, s, afp);
argc--, argv++;		argc--, argv++;
}		}

/*		/*
* Do any post argument processing required by the address family.		* Do any post argument processing required by the address family.
*/		*/
if (afp->af_postproc != NULL)		if (afp->af_postproc != NULL)
afp->af_postproc(s, afp);		afp->af_postproc(s, afp, newaddr, getifflags(name, s, true));
/*		/*
* Do deferred callbacks registered while processing		* Do deferred callbacks registered while processing
* command-line arguments.		* command-line arguments.
*/		*/
for (cb = callbacks; cb != NULL; cb = cb->cb_next)		for (cb = callbacks; cb != NULL; cb = cb->cb_next)
cb->cb_func(s, cb->cb_arg);		cb->cb_func(s, cb->cb_arg);
/*		/*
* Do deferred operations.		* Do deferred operations.
▲ Show 20 Lines • Show All 162 Lines • ▼ Show 20 Lines
setifdstaddr(const char *addr, int param __unused, int s,		setifdstaddr(const char *addr, int param __unused, int s,
const struct afswtch *afp)		const struct afswtch *afp)
{		{
if (afp->af_getaddr != NULL)		if (afp->af_getaddr != NULL)
afp->af_getaddr(addr, DSTADDR);		afp->af_getaddr(addr, DSTADDR);
}		}

static int		static int
getifflags(const char *ifname, int us)		getifflags(const char *ifname, int us, bool err_ok)
		bzUnsubmitted Done Inline Actions Can you make this a bool? bz: Can you make this a bool?
		karelsAuthorUnsubmitted Done Inline Actions Good suggestion, thanks. karels: Good suggestion, thanks.
{		{
struct ifreq my_ifr;		struct ifreq my_ifr;
int s;		int s;

memset(&my_ifr, 0, sizeof(my_ifr));		memset(&my_ifr, 0, sizeof(my_ifr));
(void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name));		(void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name));
if (us < 0) {		if (us < 0) {
if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)		if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)
err(1, "socket(family AF_LOCAL,SOCK_DGRAM");		err(1, "socket(family AF_LOCAL,SOCK_DGRAM");
} else		} else
s = us;		s = us;
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {		if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
		if (!err_ok) {
Perror("ioctl (SIOCGIFFLAGS)");		Perror("ioctl (SIOCGIFFLAGS)");
exit(1);		exit(1);
}		}
		}
if (us < 0)		if (us < 0)
close(s);		close(s);
return ((my_ifr.ifr_flags & 0xffff) \| (my_ifr.ifr_flagshigh << 16));		return ((my_ifr.ifr_flags & 0xffff) \| (my_ifr.ifr_flagshigh << 16));
}		}

/*		/*
* Note: doing an SIOCIGIFFLAGS scribbles on the union portion		* Note: doing an SIOCIGIFFLAGS scribbles on the union portion
* of the ifreq structure, which may confuse other parts of ifconfig.		* of the ifreq structure, which may confuse other parts of ifconfig.
* Make a private copy so we can avoid that.		* Make a private copy so we can avoid that.
*/		*/
static void		static void
setifflags(const char vname, int value, int s, const struct afswtch afp)		setifflags(const char vname, int value, int s, const struct afswtch afp)
{		{
struct ifreq my_ifr;		struct ifreq my_ifr;
int flags;		int flags;

flags = getifflags(name, s);		flags = getifflags(name, s, false);
if (value < 0) {		if (value < 0) {
value = -value;		value = -value;
flags &= ~value;		flags &= ~value;
} else		} else
flags \|= value;		flags \|= value;
memset(&my_ifr, 0, sizeof(my_ifr));		memset(&my_ifr, 0, sizeof(my_ifr));
(void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));		(void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
my_ifr.ifr_flags = flags & 0xffff;		my_ifr.ifr_flags = flags & 0xffff;
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