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8fc8fa80899c66937979cd5b807766a40b74cd13
irix-657m-src/eoe/cmd/bsd/ifconfig.c
calmsacibis995 8fc8fa8089 Source code upload
2022-09-29 17:59:04 +03:00

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/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1983 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)ifconfig.c 4.21 (Berkeley) 7/1/88";
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <cap_net.h>
extern int errno;
struct ifreq ifr;
struct ifaliasreq addreq, ridreq;
struct sockaddr_in netmask = { AF_INET };
void Perror(char *);
void printb(char *, __uint32_t, char *);
void printall(void);
#define SIN(x) ((struct sockaddr_in *) &(x))
struct sockaddr_in *sintab[] = {
SIN(ridreq.ifra_addr), SIN(addreq.ifra_addr),
SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)};
/* XXX this hack needs to be removed post 6.5 */
int siocsifflags = SIOCSIFFLAGS;
int siocgifflags = SIOCGIFFLAGS;
#undef ALIAS_DEBUG
char name[30];
int all = 0;
int flags;
int metric;
int setmask;
int setbroadaddr;
int setprimary;
int setaddr;
int setipdst;
int doalias;
int clearaddr;
int newaddr = 1;
int s;
extern int errno;
#define RIDADDR 0
#define ADDR 1
#define MASK 2
#define DSTADDR 3
void setifflags(char *, int), setifaddr(char *, int),
setifdstaddr(char *, int), setifnetmask(char *, int);
void setifmetric(char *, int), setifbroadaddr(char *, int),
setifipdst(char *, int), setifprimary(char *, int),
setifsspace(char *, int), setifrspace(char *, int);
void notealias(char *, int), get_aliases(char *, int);
int Ioctl(int, int, struct ifreq *);
#ifdef ALIAS_DEBUG
void print_sockaddr(struct sockaddr *);
#endif
#define NEXTARG 0xffffff
struct cmd {
char *c_name;
int c_parameter; /* NEXTARG means next argv */
void (*c_func)(char *, int);
} cmds[] = {
{ "up", IFF_UP, setifflags } ,
{ "down", -IFF_UP, setifflags },
#ifndef sgi
{ "trailers", -IFF_NOTRAILERS, setifflags },
#else
{ "primary", 1, setifprimary },
#endif
{ "-trailers", IFF_NOTRAILERS, setifflags },
{ "arp", -IFF_NOARP, setifflags },
{ "-arp", IFF_NOARP, setifflags },
{ "debug", IFF_DEBUG, setifflags },
{ "-debug", -IFF_DEBUG, setifflags },
{ "link0", IFF_LINK0, setifflags },
{ "-link0", -IFF_LINK0, setifflags },
{ "link1", IFF_LINK1, setifflags },
{ "-link1", -IFF_LINK1, setifflags },
{ "link2", IFF_LINK2, setifflags },
{ "-link2", -IFF_LINK2, setifflags },
{ "alias", IFF_UP, notealias },
{ "-alias", -IFF_UP, notealias },
{ "delete", -IFF_UP, notealias },
#ifdef notdef
#define EN_SWABIPS 0x1000
{ "swabips", EN_SWABIPS, setifflags },
{ "-swabips", -EN_SWABIPS, setifflags },
#endif
{ "netmask", NEXTARG, setifnetmask },
{ "metric", NEXTARG, setifmetric },
{ "broadcast", NEXTARG, setifbroadaddr },
{ "sspace", NEXTARG, setifsspace },
{ "rspace", NEXTARG, setifrspace },
{ "ipdst", NEXTARG, setifipdst },
{ "list", 1, get_aliases },
{ "cksum", IFF_CKSUM, setifflags } ,
{ "nocksum", -IFF_CKSUM, setifflags } ,
{ 0, 0, setifaddr },
{ 0, 0, setifdstaddr },
};
void in_status(int), in_getaddr(char *, int);
void status(void);
/* Known address families */
struct afswtch {
char *af_name;
short af_af;
void (*af_status)(int);
void (*af_getaddr)(char *, int);
int af_difaddr;
int af_aifaddr;
caddr_t af_ridreq;
caddr_t af_addreq;
} afs[] = {
#define C(x) ((caddr_t) &x)
{ "inet", AF_INET, in_status, in_getaddr,
SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
{ 0, 0, 0, 0 }
};
struct afswtch *afp; /*the address family being set or asked about*/
int verbose = 0;
void
usage(void)
{
fprintf(stderr,
"usage: ifconfig [-v] interface | -a\n%s%s%s%s%s%s%s%s%s%s%s%s",
"\t[ af [ address [ dest_addr ] ] [ up ] [ down ]",
"[ netmask mask ] ]\n",
"\t[ metric n ]\n",
"\t[ primary ]\n",
"\t[ rspace n ]\n",
"\t[ sspace n ]\n",
"\t[ alias | -alias | delete ]\n",
"\t[ arp | -arp ]\n",
"\t[ link0 | -link0 ]\n",
"\t[ link1 | -link1 ]\n",
"\t[ link2 | -link2 ]\n",
"\t[ list ]\n");
exit(1);
}
main(int argc, char **argv)
{
int af = AF_INET;
register struct afswtch *myafp;
cap_t ocap;
int c;
extern int optind;
if (argc < 2) {
usage();
}
while ((c = getopt(argc, argv, "va")) != -1) {
switch (c) {
case 'a':
all = 1;
break;
case 'v':
verbose = 1;
break;
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if ((argc == 0) && !all) {
usage();
} else if (!all) {
strncpy(name, *argv, sizeof(name));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
}
argc--, argv++;
if (argc > 0) {
for (myafp = afp = afs; myafp->af_name; myafp++)
if (strcmp(myafp->af_name, *argv) == 0) {
afp = myafp; argc--; argv++;
break;
}
myafp = afp;
af = ifr.ifr_addr.sa_family = afp->af_af;
}
s = socket(af, SOCK_DGRAM, 0);
if (s < 0) {
perror("ifconfig: socket");
exit(1);
}
if (all) {
printall();
exit(0);
}
if (Ioctl(s, siocgifflags, &ifr) < 0) {
Perror("ioctl (SIOCGIFFLAGS)");
exit(1);
}
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
flags = ifr.ifr_flags;
if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
perror("ioctl (SIOCGIFMETRIC)");
else
metric = ifr.ifr_metric;
if (argc == 0) {
status();
exit(0);
}
while (argc > 0) {
register struct cmd *p;
for (p = cmds; p->c_name; p++)
if (strcmp(*argv, p->c_name) == 0)
break;
if (p->c_name == 0 && setaddr)
p++; /* got src, do dst */
if (p->c_func) {
if (p->c_parameter == NEXTARG) {
if (argc <= 1){
fprintf(stderr, "ifconfig: missing argument\n");
exit(1);
}
(*p->c_func)(argv[1], 0);
argc--, argv++;
} else {
/*
* Make sure users specify an address with
* all alias commands
*/
if (p->c_name &&
(!strcmp(p->c_name, "alias")
|| !strcmp(p->c_name, "-alias")
|| !strcmp(p->c_name, "delete"))){
if (argc <= 1){
fprintf(stderr,"ifconfig: alias|-alias|delete: must specify address\n");
exit(1);
}
}
(*p->c_func)(*argv, p->c_parameter);
}
}
argc--, argv++;
}
if ((doalias == 0) && (setmask) && (af == AF_INET)) {
#ifdef sgi
/*
* It should be impossible to get an interface
* UP and RUNNING with address 0.0.0.0.
*/
if (setmask && (sintab[MASK]->sin_addr.s_addr == 0)) {
errno = EINVAL;
Perror("ioctl (SIOCSIFNETMASK)");
}
#endif
/*
* If setting the address and not the mask,
* clear any existing mask and the kernel will then
* assign the default. If setting both,
* set the mask first, so the address will be
* interpreted correctly.
*/
ifr.ifr_addr = *(struct sockaddr *)sintab[MASK];
ifr.ifr_addr.sa_family = AF_INET;
if (cap_network_ioctl(s, SIOCSIFNETMASK, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFNETMASK)");
}
if (doalias) { /* Process switches -alias or alias cases */
int ret;
struct ifreq *ifreqp;
struct ifaliasreq *ifaliasreqp;
strncpy(myafp->af_ridreq, name, sizeof ifr.ifr_name);
/*
* in_control(struct socket *so, __psint_t cmd, caddr_t data,
* struct ifnet *ifp)
* struct in_aliasreq *ifra = (struct in_aliasreq *)data;
* struct ifreq *ifr = (struct ifreq *)data;
*/
ifreqp = (struct ifreq *)myafp->af_ridreq;
if (clearaddr) { /* handle -alias switch case */
#ifdef ALIAS_DEBUG
printf(" IP alias processing; clearaddr case\n");
printf(" ioctl cmd SIOCDIFADDR 0x%x\n", myafp->af_difaddr);
printf(" af_ridreq(ifreq) 0x%x, ifr_name %s\n",
ifreqp, ifreqp->ifr_name);
print_sockaddr(&(ifreqp->ifr_addr));
printf(" ifru_flags 0x%x, ifru_metric %d\n",
ifreqp->ifr_flags, ifreqp->ifr_metric);
#endif
ret = ioctl(s, myafp->af_difaddr, myafp->af_ridreq);
if (ret < 0) {
if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
/* means no previous address
* for interface
*/
} else
Perror("ioctl (SIOCDIFADDR)");
}
}
strncpy(myafp->af_addreq, name, sizeof ifr.ifr_name);
ifaliasreqp = (struct ifaliasreq *)myafp->af_addreq;
if (newaddr) { /* add new alias address */
#ifdef ALIAS_DEBUG
printf(" IP alias processing; newaddr case\n");
printf(" ioctl cmd SIOCAIFADDR 0x%x\n",
myafp->af_aifaddr);
printf(" ifaliasreq 0x%x, ifra_name %s\n",
ifaliasreqp, ifaliasreqp->ifra_name);
printf(" ifaliasreq: ifra_addr ");
print_sockaddr(&(ifaliasreqp->ifra_addr));
printf(" ifra_broadaddr ");
print_sockaddr(&(ifaliasreqp->ifra_broadaddr));
printf(" ifra_mask ");
print_sockaddr(&(ifaliasreqp->ifra_mask));
#endif
if (setaddr) {
if (sintab[ADDR]->sin_addr.s_addr == 0) {
fprintf(stderr,
"ifconfig: bad alias address\n");
errno = EINVAL;
Perror("ioctl (SIOCAIFADDR)");
}
ifaliasreqp->ifra_addr.sa_family = AF_INET;
ifaliasreqp->ifra_addr =
*(struct sockaddr *) sintab[ADDR];
}
if (setbroadaddr) {
if (sintab[DSTADDR]->sin_addr.s_addr == 0) {
fprintf(stderr,
"ifconfig: bad broadcast address\n");
errno = EINVAL;
Perror("ioctl (SIOCAIFADDR)");
}
ifaliasreqp->ifra_mask.sa_family = AF_INET;
ifaliasreqp->ifra_broadaddr =
*(struct sockaddr *)sintab[DSTADDR];
}
if (setmask) {
struct sockaddr_in_new *tsa_in;
if (sintab[MASK]->sin_addr.s_addr == 0) {
fprintf(stderr,
"ifconfig: bad network mask\n");
errno = EINVAL;
Perror("ioctl (SIOCAIFADDR)");
}
ifaliasreqp->ifra_mask.sa_family = AF_INET;
tsa_in= (struct sockaddr_in_new *)sintab[MASK];
tsa_in->sin_len = sizeof(struct sockaddr_in);
ifaliasreqp->ifra_mask =
*(struct sockaddr *)sintab[MASK];
}
if (ioctl(s, myafp->af_aifaddr, myafp->af_addreq) < 0)
Perror("ioctl (SIOCAIFADDR)");
}
} else { /* Process normal switch cases */
if (setaddr) {
if (sintab[ADDR]->sin_addr.s_addr == 0) {
errno = EINVAL;
Perror("ioctl (SIOCSIFADDR)");
}
ifr.ifr_addr = *(struct sockaddr *) sintab[ADDR];
if (cap_network_ioctl(s, SIOCSIFADDR, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFADDR)");
}
if (setbroadaddr) {
if (sintab[DSTADDR]->sin_addr.s_addr == 0) {
errno = EINVAL;
Perror("ioctl (SIOCSIFBRDADDR)");
}
ifr.ifr_addr = *(struct sockaddr *)sintab[DSTADDR];
if (cap_network_ioctl(s, SIOCSIFBRDADDR, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFBRDADDR)");
}
if (setprimary) {
if (cap_network_ioctl(s, SIOCSIFHEAD, (caddr_t)&ifr) <0)
Perror("ioctl (SIOCSIFHEAD)");
}
}
exit(0);
}
struct ifseen {
struct ifseen *next;
char *name;
} *ifshead;
void
handle_ifreq(struct ifreq *ifr)
{
struct ifseen *ifs;
char *strdup();
/* LMXXX - this seems to be avoiding repeated calls on the
* same interface. Needed?
*/
for(ifs=ifshead; ifs; ifs=ifs->next)
if(strcmp(ifs->name, ifr->ifr_name)==0)
return;
strncpy(name, ifr->ifr_name, sizeof ifr->ifr_name);
flags = ifr->ifr_flags;
if (ioctl(s, SIOCGIFMETRIC, (caddr_t)ifr) < 0) {
perror("ioctl (SIOCGIFMETRIC)");
metric = 0;
} else {
metric = ifr->ifr_metric;
}
status();
ifs = (struct ifseen *)malloc(sizeof *ifs);
ifs->name = strdup(ifr->ifr_name);
ifs->next = ifshead;
ifshead = ifs;
}
void
printall(void)
{
char inbuf[8192];
struct ifconf ifc;
struct ifreq ifreq, *ifr;
int i;
ifc.ifc_len = sizeof inbuf;
ifc.ifc_buf = inbuf;
if( ioctl(s, SIOCGIFCONF, &ifc) < 0) {
Perror("ioctl(SIOCGIFCONF)");
}
ifr = ifc.ifc_req;
ifreq.ifr_name[0] = '\0';
for (i = ifc.ifc_len / sizeof (struct ifreq); i > 0; i--, ifr++) {
ifreq = *ifr;
if( Ioctl(s, siocgifflags, &ifreq) < 0) {
perror("ioctl(SIOCGIFFLAGS)");
continue;
}
handle_ifreq(&ifreq);
}
}
/*ARGSUSED*/
void
setifaddr(char *addr, int param)
{
/*
* Delay the ioctl to set the interface addr until flags are all set.
* The address interpretation may depend on the flags,
* and the flags may change when the address is set.
*/
setaddr++;
if (doalias == 0)
clearaddr = 1;
(*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
}
/* ARGSUSED */
void
setifnetmask(char *addr, int val)
{
(*afp->af_getaddr)(addr, MASK);
setmask++;
}
/* ARGSUSED */
void
setifbroadaddr(char *addr, int val)
{
(*afp->af_getaddr)(addr, DSTADDR);
setbroadaddr++;
}
/* ARGSUSED */
void
setifipdst(char *addr, int val)
{
in_getaddr(addr, DSTADDR);
setipdst++;
clearaddr = 0;
newaddr = 0;
}
#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
/*ARGSUSED*/
void
notealias(char *addr, int param)
{
if (setaddr && doalias == 0 && param < 0)
bcopy((caddr_t)rqtosa(af_addreq),
(caddr_t)rqtosa(af_ridreq), 14);
doalias = param;
if (param < 0) { /* delete case aka '-alias' */
clearaddr = 1;
newaddr = 0;
} else { /* add case aka 'alias' */
clearaddr = 0;
}
}
/*ARGSUSED*/
void
setifdstaddr(char *addr, int param)
{
(*afp->af_getaddr)(addr, DSTADDR);
ifr.ifr_addr = *(struct sockaddr *)sintab[DSTADDR];
if (cap_network_ioctl(s, SIOCSIFDSTADDR, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFDSTADDR)");
}
/*ARGSUSED*/
void
setifrspace(char *val, int val2)
{
ifr.ifr_perf = strtoul(val, (char *)0, 0);
if (cap_network_ioctl(s, SIOCSIFRECV, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFRECV)");
}
/*ARGSUSED*/
void
setifsspace(char *val, int val2)
{
ifr.ifr_perf = strtoul(val, (char *)0, 0);
if (cap_network_ioctl(s, SIOCSIFSEND, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFSEND)");
}
void
setifflags(char *vname, int value)
{
cap_t ocap;
if (Ioctl(s, siocgifflags, &ifr) < 0) {
Perror("ioctl (SIOCGIFFLAGS)");
exit(1);
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
flags = ifr.ifr_flags;
if (value < 0) {
value = -value;
flags &= ~value;
#ifdef sgi
if (setaddr && value == IFF_UP) {
if (setmask) {
ifr.ifr_addr = *(struct sockaddr *)sintab[MASK];
ifr.ifr_addr.sa_family = AF_INET;
if (ioctl(s, SIOCSIFNETMASK, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFNETMASK)");
setmask = 0;
}
/*
* special case setting an address as well as
* the down bit on the same line - addr goes FIRST
*/
ifr.ifr_addr = *(struct sockaddr *)sintab[ADDR];
if (cap_network_ioctl(s, SIOCSIFADDR, (caddr_t)&ifr) < 0)
Perror("ioctl (SIOCSIFADDR)");
setaddr = 0;
#endif
}
} else
flags |= value;
ifr.ifr_flags = flags;
if (cap_network_ioctl(s, siocsifflags, (caddr_t)&ifr) < 0)
Perror(vname);
}
/* ARGSUSED */
void
setifmetric(char *val, int val2)
{
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
ifr.ifr_metric = atoi(val);
if (cap_network_ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
perror("ioctl (set metric)");
}
void
setifprimary(char *vname, int value)
{
setprimary = value;
}
#ifdef sgi
#define IFFBITS \
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\11PROMISC\12ALLMULTI\13FILTMULTI\14MULTICAST\15CKSUM\16ALLCAST\17DRVRLOCK\20PRIVATE\21LINK0\22LINK1\23LINK2\25L2IPFRAG\26L2TCPSEG\27IPALIAS"
#else
#define IFFBITS \
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\
"
#endif
char *table[] = {
"bit", "Kbit", "Mbit", "Gbit", "Tbit"
};
int n_units = sizeof(table) / sizeof(char *);
char *
fancy(__uint64_t speed)
{
int i = 0;
static char sbuf[25];
float f = speed;
while (f > 1000.00) {
f /= 1000.00;
i++;
}
if (i >= n_units) {
sprintf(sbuf, "%f bit/s", (float)speed);
} else {
sprintf(sbuf, "%3.2f %s/s", f, table[i]);
}
return sbuf;
}
/*
* Print the status of the interface. If an address family was
* specified, show it and it only; otherwise, show them all.
*/
void
status(void)
{
register struct afswtch *p = afp;
short af = ifr.ifr_addr.sa_family;
int r;
u_long recvspace = 0;
u_long sendspace = 0;
struct ifspeed speed = {0,0};
__uint64_t ispeed;
struct ifdatareq ifd;
printf("%s: ", name);
if (siocgifflags == OSIOCGIFFLAGS) {
flags >>= 16; /* XXX hack, hack, hack */
}
printb("flags", flags, IFFBITS);
if (metric)
printf(" metric %d", metric);
putchar('\n');
if ((p = afp) != NULL) {
(*p->af_status)(1);
} else for (p = afs; p->af_name; p++) {
ifr.ifr_addr.sa_family = p->af_af;
(*p->af_status)(0);
}
if (!verbose)
return;
bzero(&ifr, sizeof(ifr));
strcpy(ifr.ifr_name, name);
r = ioctl(s, SIOCGIFRECV, &ifr);
if (r < 0) {
perror("ioctl (SIOCGIFRECV)");
} else {
recvspace = ifr.ifr_perf;
}
r = ioctl(s, SIOCGIFSEND, &ifr);
if (r < 0) {
perror("ioctl (SIOCGIFSEND)");
} else {
sendspace = ifr.ifr_perf;
}
bzero(&ifd, sizeof(ifd));
strcpy(ifd.ifd_name, name);
r = ioctl(s, SIOCGIFDATA, &ifd);
if (r < 0) {
ispeed = 0;
} else {
ispeed = if_getbaud(ifd.ifd_ifd.ifi_baudrate);
}
if (recvspace || sendspace) {
printf("\t");
if (recvspace) {
printf("recvspace %d ", recvspace);
}
if (sendspace) {
printf("sendspace %d ", sendspace);
}
printf("\n");
}
if (ispeed) {
printf("\tspeed %s", fancy(ispeed));
if (ifd.ifd_ifd.ifi_type == IFT_ETHER) {
if (flags & IFF_LINK0)
printf(" full-duplex");
else
printf(" half-duplex");
}
printf("\n");
}
}
void
in_status(int force)
{
struct sockaddr_in *sin;
char *inet_ntoa();
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
if (!force)
return;
bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
} else
perror("ioctl (SIOCGIFADDR)");
}
sin = (struct sockaddr_in *)&ifr.ifr_addr;
printf("\tinet %s ", inet_ntoa(sin->sin_addr));
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) {
if (errno != EADDRNOTAVAIL)
perror("ioctl (SIOCGIFNETMASK)");
bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
} else
sintab[MASK]->sin_addr =
((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr;
if (flags & IFF_POINTOPOINT) {
if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL)
bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
else
perror("ioctl (SIOCGIFDSTADDR)");
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
sin = (struct sockaddr_in *)&ifr.ifr_dstaddr;
printf("--> %s ", inet_ntoa(sin->sin_addr));
}
printf("netmask %#x ", ntohl(sintab[MASK]->sin_addr.s_addr));
if (flags & IFF_BROADCAST) {
if (ioctl(s, SIOCGIFBRDADDR, (caddr_t)&ifr) < 0) {
if (errno == EADDRNOTAVAIL)
bzero((char *)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
else
perror("ioctl (SIOCGIFADDR)");
}
strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
sin = (struct sockaddr_in *)&ifr.ifr_addr;
if (sin->sin_addr.s_addr != 0)
printf("broadcast %s", inet_ntoa(sin->sin_addr));
}
putchar('\n');
get_aliases((char *)0, 0);
}
/* ARGSUSED */
void
get_aliases(char *a1, int a2)
{
struct ifaliasreq ifalias;
struct sockaddr_in *sin;
char *inet_ntoa();
bzero (&ifalias, sizeof(struct ifaliasreq));
strncpy(ifalias.ifra_name, name, sizeof ifalias.ifra_name);
ifalias.ifra_addr.sa_family = AF_INET;
/*
* A cookie of zero means to return the primary address first
* and subsequent calls will return the aliases as the cookie
* value increase linearly. When a -1 is returned we've exhausted
* the alias'es for this interface.
*/
ifalias.cookie = 1;
while (1){
if ((ioctl(s, SIOCLIFADDR, (caddr_t)&ifalias)) < 0) {
perror("SIOCLIFADDR failed");
break;
}
if (ifalias.cookie < 0) {
break;
}
sin = (struct sockaddr_in *)&ifalias.ifra_addr;
printf("\tinet %s ", inet_ntoa(sin->sin_addr));
sin = (struct sockaddr_in *)&ifalias.ifra_mask;
printf("netmask %#x ", ntohl(sin->sin_addr.s_addr));
if (flags & IFF_BROADCAST) {
sin = (struct sockaddr_in *)&ifalias.ifra_broadaddr;
if (sin->sin_addr.s_addr != 0)
printf("broadcast %s",
inet_ntoa(sin->sin_addr));
}
putchar('\n');
}
}
void
Perror(char *cmd)
{
extern int errno;
fprintf(stderr, "ifconfig: ");
switch (errno) {
case ENXIO:
fprintf(stderr, "%s: no such interface\n", cmd);
break;
case EPERM:
fprintf(stderr, "%s: permission denied\n", cmd);
break;
default:
perror(cmd);
}
exit(1);
}
void
in_getaddr(char *s, int which)
{
register struct sockaddr_in *sin = sintab[which];
struct hostent *hp;
struct netent *np;
int val;
if (which != MASK)
sin->sin_family = AF_INET;
val = inet_addr(s);
if (val != -1) {
sin->sin_addr.s_addr = val;
return;
}
#ifdef sgi
/*
* accept 0xffffffff as a valid address
*/
if (!strcmp("255.255.255.255",s) ||
(strtoul(s, (char **)NULL, 0) == (unsigned long)0xffffffff)) {
sin->sin_addr.s_addr = val;
return;
}
#endif /* sgi */
hp = gethostbyname(s);
if (hp) {
sin->sin_family = hp->h_addrtype; /* What about this? */
bcopy(hp->h_addr, (char *)&sin->sin_addr, hp->h_length);
return;
}
np = getnetbyname(s);
if (np) {
sin->sin_family = np->n_addrtype; /* What about this? */
sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
return;
}
fprintf(stderr, "%s: bad value\n", s);
exit(1);
}
/*
* Print a value a la the %b format of the kernel's printf
*/
void
printb(char *s, __uint32_t v, char *bits)
{
register int i, any = 0;
register char c;
if (bits && *bits == 8)
printf("%s=%o", s, v);
else
printf("%s=%x", s, v);
bits++;
if (bits) {
putchar('<');
while (i = *bits++) {
if (v & (1 << (i-1))) {
if (any)
putchar(',');
any = 1;
for (; (c = *bits) > 32; bits++)
putchar(c);
} else
for (; *bits > 32; bits++)
;
}
putchar('>');
}
}
#ifdef ALIAS_DEBUG
static char *affamily[] = {
"AF_UNSPEC", /* 0 unspecified */
"AF_UNIX", /* 1 local to host (pipes, portals) */
"AF_INET", /* 2 internetwork: UDP, TCP, etc. */
"AF_IMPLINK", /* 3 arpanet imp addresses */
"AF_PUP", /* 4 pup protocols: e.g. BSP */
"AF_CHAOS", /* 5 mit CHAOS protocols */
"AF_NS", /* 6 XEROX NS protocols */
"AF_ISO", /* 7 ISO protocols */
"AF_ECMA", /* 8 European computer manufacturers */
"AF_DATAKIT", /* 9 datakit protocols */
"AF_CCITT", /* 10 CCITT protocols, X.25 etc */
"AF_SNA", /* 11 IBM SNA */
"AF_DECnet", /* 12 DECnet */
"AF_DLI", /* 13 DEC Direct data link interface */
"AF_LAT", /* 14 LAT */
"AF_HYLINK", /* 15 NSC Hyperchannel */
"AF_APPLETALK", /* 16 Apple Talk */
"AF_ROUTE", /* 17 Internal Routing Protocol */
"AF_RAW", /* 18 Raw link layer interface */
"pseudo_AF_XTP", /* 19 eXpress Transfer Protocol (no AF) */
/* MIPS ABI VALUES - unimplemented */
"AF_NIT", /* 17 Network Interface Tap */
"AF_802", /* 18 IEEE 802.2, also ISO 8802 */
"AF_OSI", /* 19 umbrella for all families used */
"AF_X25", /* 20 CCITT X.25 in particular */
"AF_OSINET", /* 21 AFI = 47, IDI = 4 */
"AF_GOSIP", /* 22 U.S. Government OSI */
"AF_SDL", /* 23 SGI Data Link for DLPI */
0
};
#define SA_MAX_FAMILY 24 /* size of affamily string array of pointers */
/*
* Stores a printable string version of an internet address
* into the buffer 'b' of lenth 'len'.
*/
void
in_addr_to_string(struct in_addr *in, char *b)
{
u_char n, *p;
int i;
p = (u_char *)in;
for (i = 0; i < 4; i++) {
if (i)
*b++ = '.';
n = *p;
if (n > 99) {
*b++ = '0' + (n / 100);
n %= 100;
}
if (*p > 9) {
*b++ = '0' + (n / 10);
n %= 10;
}
*b++ = '0' + n;
p++;
}
*b = 0;
return;
}
void
print_sockaddr(struct sockaddr *sap)
{
register u_short i, port;
char buf[20];
printf(" sockaddr 0x%x sa_family 0x%x ", sap, sap->sa_family);
if (sap->sa_family < SA_MAX_FAMILY) {
printf("%s\n", affamily[sap->sa_family]);
} else {
printf("Invalid sa_family\n");
}
printf(" sa_data ");
for (i=0; i< (sizeof(struct sockaddr) - sizeof(u_short)); i++) {
printf("%x", sap->sa_data[i]);
}
in_addr_to_string((&((struct sockaddr_in *)sap)->sin_addr), buf);
port = ((struct sockaddr_in *)sap)->sin_port;
printf(" port 0x%x(%d), ip addr %s\n", port, port, buf);
}
#endif /* ALIAS_DEBUG */
/* XXX this hack needs to be removed post 6.5 */
/*
* Handle failure of new ioctls when running on old kernel, possibly due to
* autoconfig failure. We need to allow the administrator to bring the
* network up correctly for recovery purposes.
*
* Due to capabilities, this doesn't really work for SIOCSIFFLAGS, so we
* rely on an SIOCGIFFLAGS ioctl being performed first. A massive
* restructuring of ifconfig might break this, but that seems unlikely to
* occur.
*/
int
Ioctl(int fd, int cmd, struct ifreq *ifr)
{
int r;
retry:
r = ioctl(fd, cmd, (char *)ifr);
if (r == -1) {
if (errno == EINVAL) {
switch (cmd) {
case SIOCSIFFLAGS:
cmd = OSIOCSIFFLAGS;
goto swiz;
case SIOCGIFFLAGS:
cmd = OSIOCGIFFLAGS;
swiz:
siocsifflags = OSIOCSIFFLAGS;
siocgifflags = OSIOCGIFFLAGS;
goto retry;
default:
break;
}
}
}
return r;
}
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