forked from Imagelibrary/rtems
275 lines
6.7 KiB
C
275 lines
6.7 KiB
C
/*
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* IFCONFIG Command Implmentation
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <netinet/in.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <rtems.h>
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#include <rtems/rtems_bsdnet.h>
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#include <rtems/shell.h>
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#include "internal.h"
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static const char IFCONFIG_USAGE[] =
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"ifconfig [iface]\n"
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"ifconfig iface options | addr\n"
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" iface: name of the interface\n"
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" options: iface \n"
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" up: bring the interface up\n"
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" down: take the interface down\n"
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" netmask addr: network mask\n"
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" broadcast addr: boardcast address\n"
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" pointopoint addr: destination address for a PTP link\n"
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"\n"
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" addr: IP address";
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static int rtems_shell_main_ifconfig(
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int argc,
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char *argv[]
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)
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{
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struct sockaddr_in ipaddr;
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struct sockaddr_in dstaddr;
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struct sockaddr_in netmask;
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struct sockaddr_in broadcast;
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char *iface = NULL;
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int f_ip = 0;
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int f_ptp = 0;
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int f_netmask = 0;
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int f_up = 0;
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int f_down = 0;
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int f_bcast = 0;
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int f_usage = 0;
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int cur_idx;
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int rc;
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int flags;
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memset(&ipaddr, 0, sizeof(ipaddr));
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memset(&dstaddr, 0, sizeof(dstaddr));
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memset(&netmask, 0, sizeof(netmask));
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memset(&broadcast, 0, sizeof(broadcast));
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ipaddr.sin_len = sizeof(ipaddr);
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ipaddr.sin_family = AF_INET;
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dstaddr.sin_len = sizeof(dstaddr);
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dstaddr.sin_family = AF_INET;
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netmask.sin_len = sizeof(netmask);
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netmask.sin_family = AF_INET;
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broadcast.sin_len = sizeof(broadcast);
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broadcast.sin_family = AF_INET;
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cur_idx = 0;
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if (argc <= 1) {
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/* display all interfaces */
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iface = NULL;
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cur_idx += 1;
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} else {
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if ( 0 == strcmp( "--help", argv[1] ) ) {
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f_usage = 1;
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cur_idx += 2;
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} else if ( 0 == strcmp( "-help", argv[1] ) ) {
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f_usage = 1;
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cur_idx += 2;
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} else {
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iface = argv[1];
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if ( argc >= 3 ) {
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if (isdigit((unsigned char)*argv[2])) {
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if (inet_pton(AF_INET, argv[2], &ipaddr.sin_addr) < 0) {
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printf("bad ip address: %s\n", argv[2]);
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return 0;
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}
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f_ip = 1;
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cur_idx += 3;
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} else {
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cur_idx += 2;
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}
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} else {
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cur_idx += 2;
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}
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}
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}
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if ((f_down !=0) && (f_ip != 0)) {
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f_up = 1;
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}
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while(argc > cur_idx) {
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if (strcmp(argv[cur_idx], "up") == 0) {
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f_up = 1;
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if (f_down != 0) {
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printf("Can't make interface up and down\n");
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return -1;
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}
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} else if(strcmp(argv[cur_idx], "down") == 0) {
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f_down = 1;
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if (f_up != 0) {
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printf("Can't make interface up and down\n");
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return -1;
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}
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} else if(strcmp(argv[cur_idx], "netmask") == 0) {
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if ((cur_idx + 1) >= argc) {
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printf("No netmask address\n");
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return -1;
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}
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if (inet_pton(AF_INET, argv[cur_idx+1], &netmask.sin_addr) < 0) {
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printf("bad netmask: %s\n", argv[cur_idx]);
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return -1;
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}
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f_netmask = 1;
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cur_idx += 1;
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} else if(strcmp(argv[cur_idx], "broadcast") == 0) {
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if ((cur_idx + 1) >= argc) {
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printf("No broadcast address\n");
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return -1;
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}
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if (inet_pton(AF_INET, argv[cur_idx+1], &broadcast.sin_addr) < 0) {
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printf("bad broadcast: %s\n", argv[cur_idx]);
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return -1;
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}
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f_bcast = 1;
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cur_idx += 1;
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} else if(strcmp(argv[cur_idx], "pointopoint") == 0) {
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if ((cur_idx + 1) >= argc) {
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printf("No pointopoint address\n");
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return -1;
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}
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if (inet_pton(AF_INET, argv[cur_idx+1], &dstaddr.sin_addr) < 0) {
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printf("bad pointopoint: %s\n", argv[cur_idx]);
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return -1;
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}
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f_ptp = 1;
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cur_idx += 1;
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} else {
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printf("Bad parameter: %s\n", argv[cur_idx]);
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return -1;
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}
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cur_idx += 1;
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}
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printf("ifconfig ");
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if (iface != NULL) {
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printf("%s ", iface);
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if (f_ip != 0) {
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char str[256];
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inet_ntop(AF_INET, &ipaddr.sin_addr, str, 256);
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printf("%s ", str);
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}
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if (f_netmask != 0) {
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char str[256];
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inet_ntop(AF_INET, &netmask.sin_addr, str, 256);
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printf("netmask %s ", str);
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}
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if (f_bcast != 0) {
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char str[256];
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inet_ntop(AF_INET, &broadcast.sin_addr, str, 256);
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printf("broadcast %s ", str);
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}
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if (f_ptp != 0) {
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char str[256];
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inet_ntop(AF_INET, &dstaddr.sin_addr, str, 256);
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printf("pointopoint %s ", str);
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}
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if (f_up != 0) {
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printf("up\n");
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} else if (f_down != 0) {
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printf("down\n");
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} else {
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printf("\n");
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}
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} else if (f_usage != 0) {
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printf ( "\n" );
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printf ( IFCONFIG_USAGE );
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}
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if ( ! f_usage ) {
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if ((iface == NULL) || ((f_ip == 0) && (f_down == 0) && (f_up == 0))) {
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rtems_bsdnet_show_if_stats();
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return 0;
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}
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}
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flags = 0;
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if (f_netmask) {
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rc = rtems_bsdnet_ifconfig(iface, SIOCSIFNETMASK, &netmask);
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if (rc < 0) {
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printf("Could not set netmask: %s\n", strerror(errno));
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return -1;
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}
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}
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if (f_bcast) {
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rc = rtems_bsdnet_ifconfig(iface, SIOCSIFBRDADDR, &broadcast);
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if (rc < 0) {
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printf("Could not set broadcast: %s\n", strerror(errno));
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return -1;
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}
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}
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if (f_ptp) {
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rc = rtems_bsdnet_ifconfig(iface, SIOCSIFDSTADDR, &dstaddr);
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if (rc < 0) {
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printf("Could not set destination address: %s\n", strerror(errno));
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return -1;
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}
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flags |= IFF_POINTOPOINT;
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}
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/* This must come _after_ setting the netmask, broadcast addresses */
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if (f_ip) {
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rc = rtems_bsdnet_ifconfig(iface, SIOCSIFADDR, &ipaddr);
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if (rc < 0) {
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printf("Could not set IP address: %s\n", strerror(errno));
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return -1;
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}
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}
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if (f_up != 0) {
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flags |= IFF_UP;
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}
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if ( ! f_usage ) {
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rc = rtems_bsdnet_ifconfig(iface, SIOCSIFFLAGS, &flags);
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if (rc < 0) {
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printf("Could not set interface flags: %s\n", strerror(errno));
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return -1;
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}
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}
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return 0;
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}
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rtems_shell_cmd_t rtems_shell_IFCONFIG_Command = {
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"ifconfig", /* name */
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IFCONFIG_USAGE, /* usage */
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"network", /* topic */
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rtems_shell_main_ifconfig, /* command */
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NULL, /* alias */
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NULL /* next */
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};
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