diff options
Diffstat (limited to 'toolbox/ifconfig.c')
-rw-r--r-- | toolbox/ifconfig.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/toolbox/ifconfig.c b/toolbox/ifconfig.c deleted file mode 100644 index e83cd8b..0000000 --- a/toolbox/ifconfig.c +++ /dev/null @@ -1,139 +0,0 @@ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -#include <errno.h> -#include <string.h> -#include <ctype.h> - -#include <sys/socket.h> -#include <netinet/in.h> -#include <linux/if.h> -#include <linux/sockios.h> -#include <arpa/inet.h> - -static void die(const char *s) -{ - fprintf(stderr,"error: %s (%s)\n", s, strerror(errno)); - exit(-1); -} - -static void setflags(int s, struct ifreq *ifr, int set, int clr) -{ - if(ioctl(s, SIOCGIFFLAGS, ifr) < 0) die("SIOCGIFFLAGS"); - ifr->ifr_flags = (ifr->ifr_flags & (~clr)) | set; - if(ioctl(s, SIOCSIFFLAGS, ifr) < 0) die("SIOCSIFFLAGS"); -} - -static inline void init_sockaddr_in(struct sockaddr_in *sin, const char *addr) -{ - sin->sin_family = AF_INET; - sin->sin_port = 0; - sin->sin_addr.s_addr = inet_addr(addr); -} - -static void setnetmask(int s, struct ifreq *ifr, const char *addr) -{ - init_sockaddr_in((struct sockaddr_in *) &ifr->ifr_netmask, addr); - if(ioctl(s, SIOCSIFNETMASK, ifr) < 0) die("SIOCSIFNETMASK"); -} - -static void setaddr(int s, struct ifreq *ifr, const char *addr) -{ - init_sockaddr_in((struct sockaddr_in *) &ifr->ifr_addr, addr); - if(ioctl(s, SIOCSIFADDR, ifr) < 0) die("SIOCSIFADDR"); -} - -int ifconfig_main(int argc, char *argv[]) -{ - struct ifreq ifr; - int s; - unsigned int addr, mask, flags; - char astring[20]; - char mstring[20]; - char *updown, *brdcst, *loopbk, *ppp, *running, *multi; - - argc--; - argv++; - - if(argc == 0) return 0; - - memset(&ifr, 0, sizeof(struct ifreq)); - strncpy(ifr.ifr_name, argv[0], IFNAMSIZ); - ifr.ifr_name[IFNAMSIZ-1] = 0; - argc--, argv++; - - if((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - die("cannot open control socket\n"); - } - - if (argc == 0) { - if (ioctl(s, SIOCGIFADDR, &ifr) < 0) { - perror(ifr.ifr_name); - return -1; - } else - addr = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr; - - if (ioctl(s, SIOCGIFNETMASK, &ifr) < 0) { - perror(ifr.ifr_name); - return -1; - } else - mask = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr; - - if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0) { - perror(ifr.ifr_name); - return -1; - } else - flags = ifr.ifr_flags; - - sprintf(astring, "%d.%d.%d.%d", - addr & 0xff, - ((addr >> 8) & 0xff), - ((addr >> 16) & 0xff), - ((addr >> 24) & 0xff)); - sprintf(mstring, "%d.%d.%d.%d", - mask & 0xff, - ((mask >> 8) & 0xff), - ((mask >> 16) & 0xff), - ((mask >> 24) & 0xff)); - printf("%s: ip %s mask %s flags [", ifr.ifr_name, - astring, - mstring - ); - - updown = (flags & IFF_UP) ? "up" : "down"; - brdcst = (flags & IFF_BROADCAST) ? " broadcast" : ""; - loopbk = (flags & IFF_LOOPBACK) ? " loopback" : ""; - ppp = (flags & IFF_POINTOPOINT) ? " point-to-point" : ""; - running = (flags & IFF_RUNNING) ? " running" : ""; - multi = (flags & IFF_MULTICAST) ? " multicast" : ""; - printf("%s%s%s%s%s%s]\n", updown, brdcst, loopbk, ppp, running, multi); - - - -/* char *updown, *brdcst, *loopbk, *ppp, *running, *multi; */ - - return 0; - } - - while(argc > 0){ - if(!strcmp(argv[0], "up")) { - setflags(s, &ifr, IFF_UP, 0); - } else if(!strcmp(argv[0], "down")) { - setflags(s, &ifr, 0, IFF_UP); - } else if(!strcmp(argv[0], "netmask")) { - argc--, argv++; - if (0 == argc) { - errno = EINVAL; - die("expecting an IP address for parameter \"netmask\""); - } - setnetmask(s, &ifr, argv[0]); - } else if(isdigit(argv[0][0])){ - setaddr(s, &ifr, argv[0]); - } - argc--, argv++; - } - - return 0; -} |