/* * Input an address and convert to binary. */ int in_addr(int skfd, char * ifname, char * bufp, struct sockaddr *sap) { /* Check if it is a hardware or IP address */ if(index(bufp, ':') == NULL) { struct sockaddr if_address; struct arpreq arp_query; /* Read interface address */ if(in_inet(bufp, &if_address) < 0) { fprintf(stderr, "Invalid interface address %s\n", bufp); return(-1); } /* Translate IP addresses to MAC addresses */ memcpy((char *) &(arp_query.arp_pa), (char *) &if_address, sizeof(struct sockaddr)); arp_query.arp_ha.sa_family = 0; arp_query.arp_flags = 0; /* The following restrict the search to the interface only */ /* For old kernels which complain, just comment it... */ strcpy(arp_query.arp_dev, ifname); if((ioctl(skfd, SIOCGARP, &arp_query) < 0) || !(arp_query.arp_flags & ATF_COM)) { fprintf(stderr, "Arp failed for %s on %s... (%d)\nTry to ping the address before setting it.\n", bufp, ifname, errno); return(-1); } /* Store new MAC address */ memcpy((char *) sap, (char *) &(arp_query.arp_ha), sizeof(struct sockaddr)); #ifdef DEBUG printf("IP Address %s => Hw Address = %s\n", bufp, pr_ether(sap->sa_data)); #endif } else /* If it's an hardware address */ /* Get the hardware address */ if(in_ether(bufp, sap) < 0) { fprintf(stderr, "Invalid hardware address %s\n", bufp); return(-1); } #ifdef DEBUG printf("Hw Address = %s\n", pr_ether(sap->sa_data)); #endif return(0); }
/** * Function to send a "magic packet" to the argument specified MAC address. * The MAC address is a string in the format: <code>xx:xx:xx:xx:xx:xx</code>. * The magic packet is 6 x 0xff then 16 x the converted MAC address. * * @param macAddr - the MAC address string to send the magic packet to * * @return success or failure of the send attempt * @retval 0 - success * @retval -1 - failure */ int send_wol (char *macAddr) { int i, j; int packet; struct sockaddr_in sap; unsigned char ethaddr[8]; unsigned char *ptr; unsigned char packetBuf [128]; int optval = 1; /** * Convert the MAC address to the hardware address. If the conversion * fails exit the function, and return an error. */ if (in_ether (macAddr, ethaddr) < 0) { //fprintf (stderr, "\r%s: invalid hardware address\n", Program); return (-1); } /** * Setup the packet socket. If the socket creation fails exit the function, * and return an error. */ if ((packet = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) { //fprintf (stderr, "\r%s: socket failed\n", Program); return (-1); } /** * Set socket options. If the operation fails, close the packet socket, * exit the function, and return an error. */ if (setsockopt (packet, SOL_SOCKET, SO_BROADCAST, (char *)&optval, sizeof (optval)) < 0) { //fprintf (stderr, "\r%s: setsocket failed %s\n", Program, strerror (errno)); close (packet); return (-1); } /** * Set up broadcast address <code>0xffffffff</code>. */ sap.sin_family = AF_INET; sap.sin_addr.s_addr = htonl(0xffffffff); sap.sin_port = htons(60000); /** * Build the message to send. Populate the packet buffer with: * 6 x <code>0xff</code> then 16 x converted MAC address. */ ptr = packetBuf; for (i = 0; i < 6; i++) { *ptr++ = 0xff; } for (j = 0; j < 16; j++) { for (i = 0; i < 6; i++) { *ptr++ = ethaddr [i]; } } /** * Send the magic packet. If the sendto() fails, close the packet socket, * exit the function, and return an error. */ if (sendto (packet, (char *)packetBuf, 102, 0, (struct sockaddr *)&sap, sizeof (sap)) < 0) { //fprintf (stderr, "\r%s: sendto failed, %s\n", Program, strerror(errno)); close (packet); return (-1); } /** * Else, everthing worked. close the packet socket, * exit the function, and return success. */ close (packet); //fprintf (stderr, "\r%s: magic packet sent to %s %s\n", Program, mac, host); return (0); }
int ifconfig_main(int argc, char **argv) { struct ifreq ifr; struct sockaddr_in sai; #ifdef CONFIG_FEATURE_IPV6 struct sockaddr_in6 sai6; #endif #ifdef CONFIG_FEATURE_IFCONFIG_HW struct sockaddr sa; #endif const struct arg1opt *a1op; const struct options *op; int sockfd; /* socket fd we use to manipulate stuff with */ int goterr; int selector; #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS unsigned int mask; unsigned int did_flags; unsigned int sai_hostname, sai_netmask; #else unsigned char mask; unsigned char did_flags; #endif char *p; char host[128]; goterr = 0; did_flags = 0; #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS sai_hostname = 0; sai_netmask = 0; #endif /* skip argv[0] */ ++argv; --argc; #ifdef CONFIG_FEATURE_IFCONFIG_STATUS if ((argc > 0) && (((*argv)[0] == '-') && ((*argv)[1] == 'a') && !(*argv)[2])) { interface_opt_a = 1; --argc; ++argv; } #endif if (argc <= 1) { #ifdef CONFIG_FEATURE_IFCONFIG_STATUS return display_interfaces(argc ? *argv : NULL); #else bb_error_msg_and_die ("ifconfig was not compiled with interface status display support."); #endif } /* Create a channel to the NET kernel. */ if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { bb_perror_msg_and_die("socket"); } /* get interface name */ safe_strncpy(ifr.ifr_name, *argv, IFNAMSIZ); /* Process the remaining arguments. */ while (*++argv != (char *) NULL) { p = *argv; mask = N_MASK; if (*p == '-') { /* If the arg starts with '-'... */ ++p; /* advance past it and */ mask = M_MASK; /* set the appropriate mask. */ } for (op = OptArray; op->name; op++) { /* Find table entry. */ if (strcmp(p, op->name) == 0) { /* If name matches... */ if ((mask &= op->flags)) { /* set the mask and go. */ goto FOUND_ARG;; } /* If we get here, there was a valid arg with an */ /* invalid '-' prefix. */ ++goterr; goto LOOP; } } /* We fell through, so treat as possible hostname. */ a1op = Arg1Opt + (sizeof(Arg1Opt) / sizeof(Arg1Opt[0])) - 1; mask = op->arg_flags; goto HOSTNAME; FOUND_ARG: if (mask & ARG_MASK) { mask = op->arg_flags; a1op = Arg1Opt + (op - OptArray); if (mask & A_NETMASK & did_flags) { bb_show_usage(); } if (*++argv == NULL) { if (mask & A_ARG_REQ) { bb_show_usage(); } else { --argv; mask &= A_SET_AFTER; /* just for broadcast */ } } else { /* got an arg so process it */ HOSTNAME: did_flags |= (mask & (A_NETMASK|A_HOSTNAME)); if (mask & A_CAST_HOST_COPY) { #ifdef CONFIG_FEATURE_IFCONFIG_HW if (mask & A_CAST_RESOLVE) { #endif #ifdef CONFIG_FEATURE_IPV6 char *prefix; int prefix_len = 0; #endif safe_strncpy(host, *argv, (sizeof host)); #ifdef CONFIG_FEATURE_IPV6 if ((prefix = strchr(host, '/'))) { prefix_len = atol(prefix + 1); if ((prefix_len < 0) || (prefix_len > 128)) { ++goterr; goto LOOP; } *prefix = 0; } #endif sai.sin_family = AF_INET; sai.sin_port = 0; if (!strcmp(host, bb_INET_default)) { /* Default is special, meaning 0.0.0.0. */ sai.sin_addr.s_addr = INADDR_ANY; #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS } else if (((host[0] == '+') && !host[1]) && (mask & A_BROADCAST) && (did_flags & (A_NETMASK|A_HOSTNAME)) == (A_NETMASK|A_HOSTNAME)) { /* + is special, meaning broadcast is derived. */ sai.sin_addr.s_addr = (~sai_netmask) | (sai_hostname & sai_netmask); #endif #ifdef CONFIG_FEATURE_IPV6 } else if (inet_pton(AF_INET6, host, &sai6.sin6_addr) > 0) { int sockfd6; struct in6_ifreq ifr6; memcpy((char *) &ifr6.ifr6_addr, (char *) &sai6.sin6_addr, sizeof(struct in6_addr)); /* Create a channel to the NET kernel. */ if ((sockfd6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { bb_perror_msg_and_die("socket6"); } if (ioctl(sockfd6, SIOGIFINDEX, &ifr) < 0) { perror("SIOGIFINDEX"); ++goterr; continue; } ifr6.ifr6_ifindex = ifr.ifr_ifindex; ifr6.ifr6_prefixlen = prefix_len; if (ioctl(sockfd6, a1op->selector, &ifr6) < 0) { perror(a1op->name); ++goterr; } continue; #endif } else if (inet_aton(host, &sai.sin_addr) == 0) { /* It's not a dotted quad. */ ++goterr; continue; } #ifdef CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS if (mask & A_HOSTNAME) { sai_hostname = sai.sin_addr.s_addr; } if (mask & A_NETMASK) { sai_netmask = sai.sin_addr.s_addr; } #endif p = (char *) &sai; #ifdef CONFIG_FEATURE_IFCONFIG_HW } else { /* A_CAST_HOST_COPY_IN_ETHER */ /* This is the "hw" arg case. */ if (strcmp("ether", *argv) || (*++argv == NULL)) { bb_show_usage(); } safe_strncpy(host, *argv, (sizeof host)); if (in_ether(host, &sa)) { bb_error_msg("invalid hw-addr %s", host); ++goterr; continue; } p = (char *) &sa; } #endif memcpy((((char *) (&ifr)) + a1op->ifr_offset), p, sizeof(struct sockaddr)); } else { unsigned int i = strtoul(*argv, NULL, 0); p = ((char *) (&ifr)) + a1op->ifr_offset; #ifdef CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ if (mask & A_MAP_TYPE) { if (ioctl(sockfd, SIOCGIFMAP, &ifr) < 0) { ++goterr; continue; } if ((mask & A_MAP_UCHAR) == A_MAP_UCHAR) { *((unsigned char *) p) = i; } else if (mask & A_MAP_USHORT) { *((unsigned short *) p) = i; } else { *((unsigned long *) p) = i; } } else #endif if (mask & A_CAST_CHAR_PTR) { *((caddr_t *) p) = (caddr_t) i; } else { /* A_CAST_INT */ *((int *) p) = i; } } if (ioctl(sockfd, a1op->selector, &ifr) < 0) { perror(a1op->name); ++goterr; continue; } #ifdef QUESTIONABLE_ALIAS_CASE if (mask & A_COLON_CHK) { /* * Don't do the set_flag() if the address is an alias with * a - at the end, since it's deleted already! - Roman * * Should really use regex.h here, not sure though how well * it'll go with the cross-platform support etc. */ char *ptr; short int found_colon = 0; for (ptr = ifr.ifr_name; *ptr; ptr++) { if (*ptr == ':') { found_colon++; } } if (found_colon && *(ptr - 1) == '-') { continue; } } #endif } if (!(mask & A_SET_AFTER)) { continue; } mask = N_SET; } if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) { perror("SIOCGIFFLAGS"); ++goterr; } else { selector = op->selector; if (mask & SET_MASK) { ifr.ifr_flags |= selector; } else { ifr.ifr_flags &= ~selector; } if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) { perror("SIOCSIFFLAGS"); ++goterr; } } LOOP: continue; } /* end of while-loop */ return goterr; }
int ifconfig_main(int argc, char **argv) { struct ifreq ifr; struct sockaddr_in sai; #if ENABLE_FEATURE_IFCONFIG_HW struct sockaddr sa; #endif const struct arg1opt *a1op; const struct options *op; int sockfd; /* socket fd we use to manipulate stuff with */ int selector; #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS unsigned int mask; unsigned int did_flags; unsigned int sai_hostname, sai_netmask; #else unsigned char mask; unsigned char did_flags; #endif char *p; /*char host[128];*/ const char *host = NULL; /* make gcc happy */ did_flags = 0; #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS sai_hostname = 0; sai_netmask = 0; #endif /* skip argv[0] */ ++argv; --argc; #if ENABLE_FEATURE_IFCONFIG_STATUS if (argc > 0 && (argv[0][0] == '-' && argv[0][1] == 'a' && !argv[0][2])) { interface_opt_a = 1; --argc; ++argv; } #endif if (argc <= 1) { #if ENABLE_FEATURE_IFCONFIG_STATUS return display_interfaces(argc ? *argv : NULL); #else bb_error_msg_and_die("no support for status display"); #endif } /* Create a channel to the NET kernel. */ sockfd = xsocket(AF_INET, SOCK_DGRAM, 0); /* get interface name */ safe_strncpy(ifr.ifr_name, *argv, IFNAMSIZ); /* Process the remaining arguments. */ while (*++argv != (char *) NULL) { p = *argv; mask = N_MASK; if (*p == '-') { /* If the arg starts with '-'... */ ++p; /* advance past it and */ mask = M_MASK; /* set the appropriate mask. */ } for (op = OptArray; op->name; op++) { /* Find table entry. */ if (strcmp(p, op->name) == 0) { /* If name matches... */ mask &= op->flags; if (mask) /* set the mask and go. */ goto FOUND_ARG; /* If we get here, there was a valid arg with an */ /* invalid '-' prefix. */ bb_error_msg_and_die("bad: '%s'", p-1); } } /* We fell through, so treat as possible hostname. */ a1op = Arg1Opt + (sizeof(Arg1Opt) / sizeof(Arg1Opt[0])) - 1; mask = op->arg_flags; goto HOSTNAME; FOUND_ARG: if (mask & ARG_MASK) { mask = op->arg_flags; a1op = Arg1Opt + (op - OptArray); if (mask & A_NETMASK & did_flags) bb_show_usage(); if (*++argv == NULL) { if (mask & A_ARG_REQ) bb_show_usage(); --argv; mask &= A_SET_AFTER; /* just for broadcast */ } else { /* got an arg so process it */ HOSTNAME: did_flags |= (mask & (A_NETMASK|A_HOSTNAME)); if (mask & A_CAST_HOST_COPY) { #if ENABLE_FEATURE_IFCONFIG_HW if (mask & A_CAST_RESOLVE) { #endif #if ENABLE_FEATURE_IPV6 char *prefix; int prefix_len = 0; #endif /*safe_strncpy(host, *argv, (sizeof host));*/ host = *argv; #if ENABLE_FEATURE_IPV6 prefix = strchr(host, '/'); if (prefix) { prefix_len = xatou_range(prefix + 1, 0, 128); *prefix = '\0'; } #endif sai.sin_family = AF_INET; sai.sin_port = 0; if (!strcmp(host, bb_str_default)) { /* Default is special, meaning 0.0.0.0. */ sai.sin_addr.s_addr = INADDR_ANY; } #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS else if ((host[0] == '+' && !host[1]) && (mask & A_BROADCAST) && (did_flags & (A_NETMASK|A_HOSTNAME)) == (A_NETMASK|A_HOSTNAME) ) { /* + is special, meaning broadcast is derived. */ sai.sin_addr.s_addr = (~sai_netmask) | (sai_hostname & sai_netmask); } #endif else { len_and_sockaddr *lsa; if (strcmp(host, "inet") == 0) continue; /* compat stuff */ lsa = xhost2sockaddr(host, 0); #if ENABLE_FEATURE_IPV6 if (lsa->sa.sa_family == AF_INET6) { int sockfd6; struct in6_ifreq ifr6; memcpy((char *) &ifr6.ifr6_addr, (char *) &(lsa->sin6.sin6_addr), sizeof(struct in6_addr)); /* Create a channel to the NET kernel. */ sockfd6 = xsocket(AF_INET6, SOCK_DGRAM, 0); if (ioctl(sockfd6, SIOGIFINDEX, &ifr) < 0) bb_perror_msg_and_die("SIOGIFINDEX"); ifr6.ifr6_ifindex = ifr.ifr_ifindex; ifr6.ifr6_prefixlen = prefix_len; if (ioctl(sockfd6, a1op->selector, &ifr6) < 0) bb_perror_msg_and_die(a1op->name); if (ENABLE_FEATURE_CLEAN_UP) free(lsa); continue; } #endif sai.sin_addr = lsa->sin.sin_addr; if (ENABLE_FEATURE_CLEAN_UP) free(lsa); } #if ENABLE_FEATURE_IFCONFIG_BROADCAST_PLUS if (mask & A_HOSTNAME) sai_hostname = sai.sin_addr.s_addr; if (mask & A_NETMASK) sai_netmask = sai.sin_addr.s_addr; #endif p = (char *) &sai; #if ENABLE_FEATURE_IFCONFIG_HW } else { /* A_CAST_HOST_COPY_IN_ETHER */ /* This is the "hw" arg case. */ if (strcmp("ether", *argv) || !*++argv) bb_show_usage(); /*safe_strncpy(host, *argv, sizeof(host));*/ host = *argv; if (in_ether(host, &sa)) bb_error_msg_and_die("invalid hw-addr %s", host); p = (char *) &sa; } #endif memcpy( (((char *)&ifr) + a1op->ifr_offset), p, sizeof(struct sockaddr)); } else { /* FIXME: error check?? */ unsigned long i = strtoul(*argv, NULL, 0); p = ((char *)&ifr) + a1op->ifr_offset; #if ENABLE_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ if (mask & A_MAP_TYPE) { if (ioctl(sockfd, SIOCGIFMAP, &ifr) < 0) bb_perror_msg_and_die("SIOCGIFMAP"); if ((mask & A_MAP_UCHAR) == A_MAP_UCHAR) *((unsigned char *) p) = i; else if (mask & A_MAP_USHORT) *((unsigned short *) p) = i; else *((unsigned long *) p) = i; } else #endif if (mask & A_CAST_CHAR_PTR) *((caddr_t *) p) = (caddr_t) i; else /* A_CAST_INT */ *((int *) p) = i; } if (ioctl(sockfd, a1op->selector, &ifr) < 0) bb_perror_msg_and_die(a1op->name); #ifdef QUESTIONABLE_ALIAS_CASE if (mask & A_COLON_CHK) { /* * Don't do the set_flag() if the address is an alias with * a '-' at the end, since it's deleted already! - Roman * * Should really use regex.h here, not sure though how well * it'll go with the cross-platform support etc. */ char *ptr; short int found_colon = 0; for (ptr = ifr.ifr_name; *ptr; ptr++) if (*ptr == ':') found_colon++; if (found_colon && ptr[-1] == '-') continue; } #endif } if (!(mask & A_SET_AFTER)) continue; mask = N_SET; } if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) bb_perror_msg_and_die("SIOCGIFFLAGS"); selector = op->selector; if (mask & SET_MASK) ifr.ifr_flags |= selector; else ifr.ifr_flags &= ~selector; if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) bb_perror_msg_and_die("SIOCSIFFLAGS"); } /* while () */ if (ENABLE_FEATURE_CLEAN_UP) close(sockfd); return 0; }
int ifconfig_main(int argc, char **argv) { struct ifreq ifr; struct sockaddr_in sai; #ifdef BB_FEATURE_IFCONFIG_HW struct sockaddr sa; #endif const struct arg1opt *a1op; const struct options *op; int sockfd; /* socket fd we use to manipulate stuff with */ int goterr; int selector; char *p; char host[128]; unsigned char mask; unsigned char did_flags; goterr = 0; did_flags = 0; /* skip argv[0] */ ++argv; --argc; #ifdef BB_FEATURE_IFCONFIG_STATUS if ((argc > 0) && (strcmp(*argv,"-a") == 0)) { interface_opt_a = 1; --argc; ++argv; } #endif if(argc <= 1) { #ifdef BB_FEATURE_IFCONFIG_STATUS return display_interfaces(argc ? *argv : NULL); #else error_msg_and_die( "ifconfig was not compiled with interface status display support."); #endif } /* Create a channel to the NET kernel. */ if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { perror_msg_and_die("socket"); } /* get interface name */ safe_strncpy(ifr.ifr_name, *argv, IFNAMSIZ); /* Process the remaining arguments. */ while (*++argv != (char *) NULL) { p = *argv; mask = N_MASK; if (*p == '-') { /* If the arg starts with '-'... */ ++p; /* advance past it and */ mask = M_MASK; /* set the appropriate mask. */ } for (op = OptArray ; op->name ; op++) { /* Find table entry. */ if (strcmp(p,op->name) == 0) { /* If name matches... */ if ((mask &= op->flags)) { /* set the mask and go. */ goto FOUND_ARG;; } /* If we get here, there was a valid arg with an */ /* invalid '-' prefix. */ ++goterr; goto LOOP; } } /* We fell through, so treat as possible hostname. */ a1op = Arg1Opt + (sizeof(Arg1Opt) / sizeof(Arg1Opt[0])) - 1; mask = op->arg_flags; goto HOSTNAME; FOUND_ARG: if (mask & ARG_MASK) { mask = op->arg_flags; a1op = Arg1Opt + (op - OptArray); if (mask & A_NETMASK & did_flags) { show_usage(); } if (*++argv == NULL) { if (mask & A_ARG_REQ) { show_usage(); } else { --argv; mask &= A_SET_AFTER; /* just for broadcast */ } } else { /* got an arg so process it */ HOSTNAME: did_flags |= (mask & A_NETMASK); if (mask & A_CAST_HOST_COPY) { #ifdef BB_FEATURE_IFCONFIG_HW if (mask & A_CAST_RESOLVE) { #endif safe_strncpy(host, *argv, (sizeof host)); sai.sin_family = AF_INET; sai.sin_port = 0; if (!strcmp(host, "default")) { /* Default is special, meaning 0.0.0.0. */ sai.sin_addr.s_addr = INADDR_ANY; } else if (inet_aton(host, &sai.sin_addr) == 0) { /* It's not a dotted quad. */ ++goterr; continue; } p = (char *) &sai; #ifdef BB_FEATURE_IFCONFIG_HW } else { /* A_CAST_HOST_COPY_IN_ETHER */ /* This is the "hw" arg case. */ if (strcmp("ether", *argv) || (*++argv == NULL)) { show_usage(); } safe_strncpy(host, *argv, (sizeof host)); if (in_ether(host, &sa)) { fprintf(stderr, "invalid hw-addr %s\n", host); ++goterr; continue; } p = (char *) &sa; } #endif memcpy((((char *)(&ifr)) + a1op->ifr_offset), p, sizeof(struct sockaddr)); } else { unsigned int i = strtoul(*argv,NULL,0); p = ((char *)(&ifr)) + a1op->ifr_offset; #ifdef BB_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ if (mask & A_MAP_TYPE) { if (ioctl(sockfd, SIOCGIFMAP, &ifr) < 0) { ++goterr; continue; } if ((mask & A_MAP_UCHAR) == A_MAP_UCHAR) { *((unsigned char *) p) = i; } else if (mask & A_MAP_USHORT) { *((unsigned short *) p) = i; } else { *((unsigned long *) p) = i; } } else #endif if (mask & A_CAST_CHAR_PTR) { *((caddr_t *) p) = (caddr_t) i; } else { /* A_CAST_INT */ *((int *) p) = i; } } if (ioctl(sockfd, a1op->selector, &ifr) < 0) { perror(a1op->name); ++goterr; continue; } #ifdef QUESTIONABLE_ALIAS_CASE if (mask & A_COLON_CHK) { /* * Don't do the set_flag() if the address is an alias with * a - at the end, since it's deleted already! - Roman * * Should really use regex.h here, not sure though how well * it'll go with the cross-platform support etc. */ char *ptr; short int found_colon = 0; for (ptr = ifr.ifr_name; *ptr; ptr++ ) { if (*ptr == ':') { found_colon++; } } if (found_colon && *(ptr - 1) == '-') { continue; } } #endif } if (!(mask & A_SET_AFTER)) { continue; } mask = N_SET; } if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) { perror("SIOCGIFFLAGS"); ++goterr; } else { selector = op->selector; if (mask & SET_MASK) { ifr.ifr_flags |= selector; } else { ifr.ifr_flags &= ~selector; } if (ioctl(sockfd, SIOCSIFFLAGS, &ifr) < 0) { perror("SIOCSIFFLAGS"); ++goterr; } } LOOP: } /* end of while-loop */ return goterr; } #ifdef BB_FEATURE_IFCONFIG_HW /* Input an Ethernet address and convert to binary. */ static int in_ether(char *bufp, struct sockaddr *sap) { unsigned char *ptr; int i, j; unsigned char val; unsigned char c; sap->sa_family = ARPHRD_ETHER; ptr = sap->sa_data; for (i = 0 ; i < ETH_ALEN ; i++) { val = 0; /* We might get a semicolon here - not required. */ if (i && (*bufp == ':')) { bufp++; } for (j=0 ; j<2 ; j++) { c = *bufp; if (c >= '0' && c <= '9') { c -= '0'; } else if (c >= 'a' && c <= 'f') { c -= ('a' - 10); } else if (c >= 'A' && c <= 'F') { c -= ('A' - 10); } else if (j && (c == ':' || c == 0)) { break; } else { return -1; } ++bufp; val <<= 4; val += c; } *ptr++ = val; } return (int) (*bufp); /* Error if we don't end at end of string. */ }