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toolbox: Add 'pointopoint' support to ifconfig

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Signed-off-by: San Mehat <san@google.com>
This commit is contained in:
San Mehat 2009-05-13 10:05:06 -07:00
parent 82a2116e6b
commit fa49e2860b
1 changed files with 16 additions and 0 deletions
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16
toolbox/ifconfig.c
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@ -33,6 +33,12 @@ static inline void init_sockaddr_in(struct sockaddr_in *sin, const char *addr)
sin->sin_addr.s_addr = inet_addr(addr);
}
static void setdstaddr(int s, struct ifreq *ifr, const char *addr)
{
init_sockaddr_in((struct sockaddr_in *) &ifr->ifr_dstaddr, addr);
if(ioctl(s, SIOCSIFDSTADDR, ifr) < 0) die("SIOCSIFDSTADDR");
}
static void setnetmask(int s, struct ifreq *ifr, const char *addr)
{
init_sockaddr_in((struct sockaddr_in *) &ifr->ifr_netmask, addr);
@ -120,6 +126,16 @@ int ifconfig_main(int argc, char *argv[])
while(argc > 0){
if(!strcmp(argv[0], "up")) {
setflags(s, &ifr, IFF_UP, 0);
} else if(!strcmp(argv[0], "-pointtopoint")) {
setflags(s, &ifr, IFF_POINTOPOINT, 1);
} else if(!strcmp(argv[0], "pointtopoint")) {
argc--, argv++;
if (0 == argc) {
errno = EINVAL;
die("expecting an IP address for parameter \"pointtopoint\"");
}
setdstaddr(s, &ifr, argv[0]);
setflags(s, &ifr, IFF_POINTOPOINT, 0);
} else if(!strcmp(argv[0], "down")) {
setflags(s, &ifr, 0, IFF_UP);
} else if(!strcmp(argv[0], "netmask")) {