Differential D9649 Diff 25309 sbin/ifconfig/ifconfig.c

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sbin/ifconfig/ifconfig.c

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static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";		static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
#endif		#endif
static const char rcsid[] =		static const char rcsid[] =
"$FreeBSD$";		"$FreeBSD$";
#endif /* not lint */		#endif /* not lint */

#include <sys/param.h>		#include <sys/param.h>
#include <sys/ioctl.h>		#include <sys/ioctl.h>
		#ifdef JAIL
		#include <sys/jail.h>
		#endif
#include <sys/module.h>		#include <sys/module.h>
#include <sys/linker.h>		#include <sys/linker.h>
#include <sys/queue.h>		#include <sys/queue.h>
#include <sys/socket.h>		#include <sys/socket.h>
#include <sys/time.h>		#include <sys/time.h>

#include <net/ethernet.h>		#include <net/ethernet.h>
#include <net/if.h>		#include <net/if.h>
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#include <ifaddrs.h>		#include <ifaddrs.h>
#include <ctype.h>		#include <ctype.h>
#include <err.h>		#include <err.h>
#include <errno.h>		#include <errno.h>
#include <fcntl.h>		#include <fcntl.h>
#ifdef JAIL		#ifdef JAIL
#include <jail.h>		#include <jail.h>
		#include <nl_types.h>
#endif		#endif
#include <stdio.h>		#include <stdio.h>
#include <stdlib.h>		#include <stdlib.h>
#include <string.h>		#include <string.h>
#include <unistd.h>		#include <unistd.h>

#include "ifconfig.h"		#include "ifconfig.h"

▲ Show 20 Lines • Show All 53 Lines • ▼ Show 20 Lines	opt_register(struct option *p)
opts = p;		opts = p;
}		}

static void		static void
usage(void)		usage(void)
{		{
char options[1024];		char options[1024];
struct option *p;		struct option *p;
		#ifdef JAIL
		const char *jail = "[-j jail] ";
		#else
		const char *jail = "";
		#endif

/* XXX not right but close enough for now */		/* XXX not right but close enough for now */
options[0] = '\0';		options[0] = '\0';
for (p = opts; p != NULL; p = p->next) {		for (p = opts; p != NULL; p = p->next) {
strlcat(options, p->opt_usage, sizeof(options));		strlcat(options, p->opt_usage, sizeof(options));
strlcat(options, " ", sizeof(options));		strlcat(options, " ", sizeof(options));
}		}

fprintf(stderr,		fprintf(stderr,
"usage: ifconfig [-f type:format] %sinterface address_family\n"		"usage: ifconfig [-f type:format] %s%sinterface address_family\n"
" [address [dest_address]] [parameters]\n"		" [address [dest_address]] [parameters]\n"
" ifconfig interface create\n"		" ifconfig %sinterface create\n"
" ifconfig -a %s[-d] [-m] [-u] [-v] [address_family]\n"		" ifconfig -a %s[-d] %s[-m] [-u] [-v] [address_family]\n"
" ifconfig -l [-d] [-u] [address_family]\n"		" ifconfig -l [-d] %s[-u] [address_family]\n"
" ifconfig %s[-d] [-m] [-u] [-v]\n",		" ifconfig %s[-d] %s[-m] [-u] [-v]\n",
options, options, options);		jail, options, jail, options, jail, jail, options, jail);
exit(1);		exit(1);
}		}

#define ORDERS_SIZE(x) sizeof(x) / sizeof(x[0])		#define ORDERS_SIZE(x) sizeof(x) / sizeof(x[0])

static int		static int
calcorders(struct ifaddrs ifa, struct ifa_queue q)		calcorders(struct ifaddrs ifa, struct ifa_queue q)
{		{
▲ Show 20 Lines • Show All 197 Lines • ▼ Show 20 Lines	main(int argc, char *argv[])
struct ifreq paifr;		struct ifreq paifr;
const struct sockaddr_dl *sdl;		const struct sockaddr_dl *sdl;
char options[1024], cp, envformat, *namecp = NULL;		char options[1024], cp, envformat, *namecp = NULL;
struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q);		struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q);
struct ifa_order_elt cur, tmp;		struct ifa_order_elt cur, tmp;
const char *ifname;		const char *ifname;
struct option *p;		struct option *p;
size_t iflen;		size_t iflen;
		#ifdef JAIL
		int jid;

		jid = 0;
		#endif

all = downonly = uponly = namesonly = noload = verbose = 0;		all = downonly = uponly = namesonly = noload = verbose = 0;
f_inet = f_inet6 = f_ether = f_addr = NULL;		f_inet = f_inet6 = f_ether = f_addr = NULL;

envformat = getenv("IFCONFIG_FORMAT");		envformat = getenv("IFCONFIG_FORMAT");
if (envformat != NULL)		if (envformat != NULL)
setformat(envformat);		setformat(envformat);

/*		/*
* Ensure we print interface name when expected to,		* Ensure we print interface name when expected to,
* even if we terminate early due to error.		* even if we terminate early due to error.
*/		*/
atexit(printifnamemaybe);		atexit(printifnamemaybe);

/* Parse leading line options */		/* Parse leading line options */
		#ifdef JAIL
		strlcpy(options, "f:adj:klmnuv", sizeof(options));
		#else
strlcpy(options, "f:adklmnuv", sizeof(options));		strlcpy(options, "f:adklmnuv", sizeof(options));
		#endif
for (p = opts; p != NULL; p = p->next)		for (p = opts; p != NULL; p = p->next)
strlcat(options, p->opt, sizeof(options));		strlcat(options, p->opt, sizeof(options));
while ((c = getopt(argc, argv, options)) != -1) {		while ((c = getopt(argc, argv, options)) != -1) {
switch (c) {		switch (c) {
case 'a': /* scan all interfaces */		case 'a': /* scan all interfaces */
all++;		all++;
break;		break;
case 'd': /* restrict scan to "down" interfaces */		case 'd': /* restrict scan to "down" interfaces */
downonly++;		downonly++;
break;		break;
case 'f':		case 'f':
if (optarg == NULL)		if (optarg == NULL)
usage();		usage();
setformat(optarg);		setformat(optarg);
break;		break;
		#ifdef JAIL
		case 'j':
		jid = jail_getid(optarg);
		noload++;
		break;
		#endif
case 'k':		case 'k':
printkeys++;		printkeys++;
break;		break;
case 'l': /* scan interface names only */		case 'l': /* scan interface names only */
namesonly++;		namesonly++;
break;		break;
case 'm': /* show media choices in status */		case 'm': /* show media choices in status */
supmedia = 1;		supmedia = 1;
Show All 23 Lines	#endif

/* -l cannot be used with -a or -m */		/* -l cannot be used with -a or -m */
if (namesonly && (all \|\| supmedia))		if (namesonly && (all \|\| supmedia))
usage();		usage();

/* nonsense.. */		/* nonsense.. */
if (uponly && downonly)		if (uponly && downonly)
usage();		usage();

		#ifdef JAIL
		if (jid > 0) {
		(void)catopen("libc", NL_CAT_LOCALE);
		if (jail_attach(jid) == -1) {
		if (errno == EINVAL)
		errx(1, "jail does not exist");
		err(1, "jail_attach()");
		}
		} else if (jid == -1) {
		errx(1, "jail does not exist");
		}
		#endif

/* no arguments is equivalent to '-a' */		/* no arguments is equivalent to '-a' */
if (!namesonly && argc < 1)		if (!namesonly && argc < 1)
all = 1;		all = 1;

/* -a and -l allow an address family arg to limit the output */		/* -a and -l allow an address family arg to limit the output */
if (all \|\| namesonly) {		if (all \|\| namesonly) {
if (argc > 1)		if (argc > 1)
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