Mercurial > hg > toybox
annotate toys/pending/ifconfig.c @ 1128:9eaec92e3713 draft
Ifconfig cleanup.
| author | Rob Landley <rob@landley.net> |
|---|---|
| date | Tue, 26 Nov 2013 19:35:22 -0600 |
| parents | e0a8cbb1a5e3 |
| children |
| rev | line source |
|---|---|
| 841 | 1 /* ifconfig.c - Configure network interface. |
| 2 * | |
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3 * Copyright 2012 Ranjan Kumar <ranjankumar.bth@gmail.com> |
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4 * Copyright 2012 Kyungwan Han <asura321@gamil.com> |
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5 * Reviewed by Kyungsu Kim <kaspyx@gmail.com> |
| 841 | 6 * |
| 7 * Not in SUSv4. | |
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8 |
| 841 | 9 USE_IFCONFIG(NEWTOY(ifconfig, "?a", TOYFLAG_BIN)) |
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10 |
| 841 | 11 config IFCONFIG |
| 12 bool "ifconfig" | |
| 921 | 13 default y |
| 841 | 14 help |
| 15 usage: ifconfig [-a] interface [address] | |
| 16 | |
| 17 Configure network interface. | |
| 18 | |
| 19 [add ADDRESS[/PREFIXLEN]] | |
| 20 [del ADDRESS[/PREFIXLEN]] | |
| 21 [[-]broadcast [ADDRESS]] [[-]pointopoint [ADDRESS]] | |
| 22 [netmask ADDRESS] [dstaddr ADDRESS] | |
| 23 [outfill NN] [keepalive NN] | |
| 24 [hw ether|infiniband ADDRESS] [metric NN] [mtu NN] | |
| 25 [[-]trailers] [[-]arp] [[-]allmulti] | |
| 26 [multicast] [[-]promisc] [txqueuelen NN] [[-]dynamic] | |
| 27 [mem_start NN] [io_addr NN] [irq NN] | |
| 28 [up|down] ... | |
| 29 */ | |
| 30 | |
| 31 #define FOR_ifconfig | |
| 32 #include "toys.h" | |
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33 |
| 841 | 34 #include <net/if_arp.h> |
| 35 #include <net/ethernet.h> | |
| 36 | |
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37 GLOBALS( |
| 921 | 38 int sockfd; |
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39 ) |
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40 |
| 841 | 41 //for ipv6 add/del |
| 42 struct ifreq_inet6 { | |
| 43 struct in6_addr ifrinte6_addr; | |
| 44 uint32_t ifrinet6_prefixlen; | |
| 45 int ifrinet6_ifindex; | |
| 46 }; | |
| 47 | |
| 1128 | 48 // Convert hostname to binary address for AF_INET or AF_INET6 |
| 49 void get_addrinfo(char *host, sa_family_t af, void *addr) | |
| 841 | 50 { |
| 1128 | 51 struct addrinfo hints, *result, *rp = 0; |
| 52 int status, len; | |
| 53 char *from; | |
| 841 | 54 |
| 921 | 55 memset(&hints, 0 , sizeof(struct addrinfo)); |
| 56 hints.ai_family = af; | |
| 57 hints.ai_socktype = SOCK_STREAM; | |
| 58 | |
| 59 status = getaddrinfo(host, NULL, &hints, &result); | |
| 1128 | 60 if (!status) |
| 61 for (rp = result; rp; rp = rp->ai_next) | |
| 62 if (rp->ai_family == af) break; | |
| 63 if (!rp) error_exit("bad address '%s' : %s", host, gai_strerror(status)); | |
| 852 | 64 |
| 1128 | 65 // You'd think ipv4 and ipv6 would ahve some basic compatability, but no. |
| 66 len = 4; | |
| 67 from = ((char *)rp->ai_addr->sa_data) + 2; | |
| 68 if (af == AF_INET6) { | |
| 69 len = 16; | |
| 70 from += 4; | |
| 841 | 71 } |
| 1128 | 72 memcpy(addr, from, len); |
| 73 freeaddrinfo(result); | |
| 841 | 74 } |
| 75 | |
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76 static void display_ifconfig(char *name, int always, unsigned long long val[]) |
| 841 | 77 { |
| 78 struct ifreq ifre; | |
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79 struct { |
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80 int type; |
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81 char *title; |
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82 } types[] = { |
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83 {ARPHRD_LOOPBACK, "Local Loopback"}, {ARPHRD_ETHER, "Ethernet"}, |
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84 {ARPHRD_PPP, "Point-to-Point Protocol"}, {ARPHRD_INFINIBAND, "InfiniBand"}, |
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85 {ARPHRD_SIT, "IPv6-in-IPv4"}, {-1, "UNSPEC"} |
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86 }; |
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87 int i; |
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88 char *pp; |
| 921 | 89 FILE *fp; |
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90 short flags; |
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91 |
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92 xstrncpy(ifre.ifr_name, name, IFNAMSIZ); |
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93 if (ioctl(TT.sockfd, SIOCGIFFLAGS, &ifre)<0) perror_exit("%s", name); |
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94 flags = ifre.ifr_flags; |
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95 if (!always && !(flags & IFF_UP)) return; |
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96 |
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97 // query hardware type and hardware address |
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98 i = ioctl(TT.sockfd, SIOCGIFHWADDR, &ifre); |
| 841 | 99 |
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100 for (i=0; i < (sizeof(types)/sizeof(*types))-1; i++) |
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101 if (ifre.ifr_hwaddr.sa_family == types[i].type) break; |
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102 |
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103 xprintf("%-9s Link encap:%s ", name, types[i].title); |
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104 if(i >= 0 && ifre.ifr_hwaddr.sa_family == ARPHRD_ETHER) { |
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105 xprintf("HWaddr "); |
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106 for (i=0; i<6; i++) xprintf(":%02X"+!i, ifre.ifr_hwaddr.sa_data[i]); |
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107 } |
| 852 | 108 xputc('\n'); |
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109 |
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110 // If an address is assigned record that. |
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111 |
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112 ifre.ifr_addr.sa_family = AF_INET; |
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113 memset(&ifre.ifr_addr, 0, sizeof(ifre.ifr_addr)); |
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114 ioctl(TT.sockfd, SIOCGIFADDR, &ifre); |
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115 pp = (char *)&ifre.ifr_addr; |
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116 for (i = 0; i<sizeof(ifre.ifr_addr); i++) if (pp[i]) break; |
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117 |
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118 if (i != sizeof(ifre.ifr_addr)) { |
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119 struct sockaddr_in *si = (struct sockaddr_in *)&ifre.ifr_addr; |
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120 struct { |
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121 char *name; |
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122 int flag, ioctl; |
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123 } addr[] = { |
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124 {"addr", 0, 0}, |
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125 {"P-t-P", IFF_POINTOPOINT, SIOCGIFDSTADDR}, |
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126 {"Bcast", IFF_BROADCAST, SIOCGIFBRDADDR}, |
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127 {"Mask", 0, SIOCGIFNETMASK} |
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128 }; |
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129 |
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130 xprintf("%10c%s", ' ', (si->sin_family == AF_INET) ? "inet" : |
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131 (si->sin_family == AF_INET6) ? "inet6" : "unspec"); |
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132 |
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133 for (i=0; i < sizeof(addr)/sizeof(*addr); i++) { |
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134 if (!addr[i].flag || (flags & addr[i].flag)) { |
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135 if (addr[i].ioctl && ioctl(TT.sockfd, addr[i].ioctl, &ifre)) |
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136 si->sin_family = 0; |
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137 xprintf(" %s:%s ", addr[i].name, |
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138 (si->sin_family == 0xFFFF || !si->sin_family) |
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139 ? "[NOT SET]" : inet_ntoa(si->sin_addr)); |
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140 } |
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141 } |
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142 |
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143 xputc('\n'); |
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144 } |
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145 |
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146 fp = fopen(pp = "/proc/net/if_inet6", "r"); |
| 921 | 147 if (fp) { |
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148 char iface_name[IFNAMSIZ]; |
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149 int plen, iscope; |
| 921 | 150 |
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151 while (fgets(toybuf, sizeof(toybuf), fp)) { |
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152 int nitems; |
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153 char ipv6_addr[40]; |
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154 |
| 921 | 155 nitems = sscanf(toybuf, "%32s %*08x %02x %02x %*02x %15s\n", |
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156 ipv6_addr, &plen, &iscope, iface_name); |
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157 if (nitems<0 && feof(fp)) break; |
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158 if (nitems != 4) perror_exit("bad %s", pp); |
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159 |
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160 if (!strcmp(name, iface_name)) { |
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161 struct sockaddr_in6 s6; |
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162 char *ptr = ipv6_addr+sizeof(ipv6_addr)-1; |
| 921 | 163 |
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164 // convert giant hex string into colon-spearated ipv6 address by |
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165 // inserting ':' every 4 characters. |
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166 for (i = 32; i; i--) |
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167 if ((*(ptr--) = ipv6_addr[i])) if (!(i&3)) *(ptr--) = ':'; |
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168 |
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169 // Convert to binary and back to get abbreviated :: version |
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170 if (inet_pton(AF_INET6, ipv6_addr, (void *)&s6.sin6_addr) > 0) { |
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171 if (inet_ntop(AF_INET6, &s6.sin6_addr, toybuf, sizeof(toybuf))) { |
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172 char *scopes[] = {"Global","Host","Link","Site","Compat"}, |
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173 *scope = "Unknown"; |
| 921 | 174 |
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175 for (i=0; i < sizeof(scopes)/sizeof(*scopes); i++) |
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176 if (iscope == (!!i)<<(i+3)) scope = scopes[i]; |
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177 xprintf("%10cinet6 addr: %s/%d Scope: %s\n", |
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178 ' ', toybuf, plen, scope); |
| 921 | 179 } |
| 180 } | |
| 181 } | |
| 182 } | |
| 183 fclose(fp); | |
| 184 } | |
| 185 | |
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186 xprintf("%10c", ' '); |
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187 |
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188 if (flags) { |
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189 unsigned short mask = 1; |
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190 char **s, *str[] = { |
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191 "UP", "BROADCAST", "DEBUG", "LOOPBACK", "POINTOPOINT", "NOTRAILERS", |
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192 "RUNNING", "NOARP", "PROMISC", "ALLMULTI", "MASTER", "SLAVE", "MULTICAST", |
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193 "PORTSEL", "AUTOMEDIA", "DYNAMIC", NULL |
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194 }; |
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195 |
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196 for (s = str; *s; s++) { |
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197 if (flags & mask) xprintf("%s ", *s); |
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198 mask = mask << 1; |
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199 } |
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200 } else xprintf("[NO FLAGS] "); |
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201 |
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202 if (ioctl(TT.sockfd, SIOCGIFMTU, &ifre) < 0) ifre.ifr_mtu = 0; |
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203 xprintf(" MTU:%d", ifre.ifr_mtu); |
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204 if (ioctl(TT.sockfd, SIOCGIFMETRIC, &ifre) < 0) ifre.ifr_metric = 0; |
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205 if (!ifre.ifr_metric) ifre.ifr_metric = 1; |
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206 xprintf(" Metric:%d", ifre.ifr_metric); |
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207 |
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208 // non-virtual interface |
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209 |
| 1128 | 210 if (val) { |
| 870 | 211 char *label[] = {"RX bytes", "RX packets", "errors", "dropped", "overruns", |
| 212 "frame", 0, 0, "TX bytes", "TX packets", "errors", "dropped", "overruns", | |
| 213 "collisions", "carrier", 0, "txqueuelen"}; | |
| 214 signed char order[] = {-1, 1, 2, 3, 4, 5, -1, 9, 10, 11, 12, 14, -1, | |
| 215 13, 16, -1, 0, 8}; | |
| 216 int i; | |
| 217 | |
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218 // Query txqueuelen |
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219 if (ioctl(TT.sockfd, SIOCGIFTXQLEN, &ifre) >= 0) val[16] = ifre.ifr_qlen; |
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220 else val[16] = -1; |
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221 |
| 870 | 222 for (i = 0; i < sizeof(order); i++) { |
| 223 int j = order[i]; | |
| 841 | 224 |
| 870 | 225 if (j < 0) xprintf("\n%10c", ' '); |
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226 else xprintf("%s:%llu ", label[j], val[j]); |
| 870 | 227 } |
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228 } |
| 870 | 229 xputc('\n'); |
| 230 | |
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231 if(!ioctl(TT.sockfd, SIOCGIFMAP, &ifre) && (ifre.ifr_map.irq || |
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232 ifre.ifr_map.mem_start || ifre.ifr_map.dma || ifre.ifr_map.base_addr)) |
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233 { |
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234 xprintf("%10c", ' '); |
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235 if(ifre.ifr_map.irq) xprintf("Interrupt:%d ", ifre.ifr_map.irq); |
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236 if(ifre.ifr_map.base_addr >= 0x100) // IO_MAP_INDEX |
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237 xprintf("Base address:0x%lx ", ifre.ifr_map.base_addr); |
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238 if(ifre.ifr_map.mem_start) |
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239 xprintf("Memory:%lx-%lx ", ifre.ifr_map.mem_start, ifre.ifr_map.mem_end); |
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240 if(ifre.ifr_map.dma) xprintf("DMA chan:%x ", ifre.ifr_map.dma); |
| 852 | 241 xputc('\n'); |
| 841 | 242 } |
| 852 | 243 xputc('\n'); |
| 841 | 244 } |
| 245 | |
| 870 | 246 static void show_iface(char *iface_name) |
| 841 | 247 { |
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248 char *name; |
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249 struct string_list *ifaces = 0, *sl; |
| 870 | 250 int i, j; |
| 251 FILE *fp; | |
| 252 | |
| 253 fp = xfopen("/proc/net/dev", "r"); | |
| 254 | |
| 255 for (i=0; fgets(toybuf, sizeof(toybuf), fp); i++) { | |
|
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256 char *buf = toybuf; |
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257 unsigned long long val[17]; |
| 870 | 258 |
| 259 if (i<2) continue; | |
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260 |
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261 while (isspace(*buf)) buf++; |
| 870 | 262 name = strsep(&buf, ":"); |
| 263 if(!buf) error_exit("bad name %s", name); | |
| 264 | |
| 265 errno = 0; | |
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266 for (j=0; j<16 && !errno; j++) val[j] = strtoll(buf, &buf, 0); |
| 870 | 267 if (errno) perror_exit("bad %s at %s", name, buf); |
| 268 | |
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269 if (iface_name) { |
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270 if (!strcmp(iface_name, name)) { |
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271 display_ifconfig(iface_name, 1, val); |
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272 |
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273 return; |
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274 } |
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275 } else { |
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276 sl = xmalloc(sizeof(*sl)+strlen(name)+1); |
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277 strcpy(sl->str, name); |
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278 sl->next = ifaces; |
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279 ifaces = sl; |
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280 |
| 1128 | 281 display_ifconfig(sl->str, toys.optflags & FLAG_a, val); |
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282 } |
| 870 | 283 } |
| 284 fclose(fp); | |
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285 |
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286 if (iface_name) display_ifconfig(iface_name, 1, 0); |
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287 else { |
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288 struct ifconf ifcon; |
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289 struct ifreq *ifre; |
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290 int num; |
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291 |
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292 // Loop until buffer's big enough |
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293 ifcon.ifc_buf = NULL; |
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294 for (num = 30;;num += 10) { |
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295 ifcon.ifc_len = sizeof(struct ifreq)*num; |
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296 ifcon.ifc_buf = xrealloc(ifcon.ifc_buf, ifcon.ifc_len); |
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297 xioctl(TT.sockfd, SIOCGIFCONF, &ifcon); |
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298 if (ifcon.ifc_len != sizeof(struct ifreq)*num) break; |
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299 } |
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300 |
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301 ifre = ifcon.ifc_req; |
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302 for(num = 0; num < ifcon.ifc_len && ifre; num += sizeof(struct ifreq), ifre++) |
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303 { |
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304 // Skip duplicates |
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305 for(sl = ifaces; sl; sl = sl->next) |
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306 if(!strcmp(sl->str, ifre->ifr_name)) break; |
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307 |
|
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308 if(!sl) display_ifconfig(ifre->ifr_name, toys.optflags & FLAG_a, 0); |
| 841 | 309 } |
|
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310 |
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311 free(ifcon.ifc_buf); |
| 841 | 312 } |
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313 |
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314 llist_traverse(ifaces, free); |
| 841 | 315 } |
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316 |
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317 // Encode offset and size of field into an int, and make result negative |
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318 #define IFREQ_OFFSZ(x) -(int)((offsetof(struct ifreq, x)<<16) + sizeof(ifre.x)) |
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319 |
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320 void ifconfig_main(void) |
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321 { |
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322 char **argv = toys.optargs; |
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323 struct ifreq ifre; |
| 921 | 324 int i; |
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325 |
| 921 | 326 TT.sockfd = xsocket(AF_INET, SOCK_DGRAM, 0); |
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327 if(toys.optc < 2) { |
| 870 | 328 show_iface(*argv); |
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329 return; |
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330 } |
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331 |
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332 // Open interface |
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333 memset(&ifre, 0, sizeof(struct ifreq)); |
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334 xstrncpy(ifre.ifr_name, *argv, IFNAMSIZ); |
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335 |
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336 // Perform operations on interface |
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337 while(*++argv) { |
| 1128 | 338 // Table of known operations |
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339 struct argh { |
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340 char *name; |
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341 int on, off; // set, clear |
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342 } try[] = { |
| 1128 | 343 {0, IFF_UP|IFF_RUNNING, SIOCSIFADDR}, |
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344 {"up", IFF_UP|IFF_RUNNING, 0}, |
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345 {"down", 0, IFF_UP}, |
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346 {"arp", 0, IFF_NOARP}, |
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347 {"trailers", 0, IFF_NOTRAILERS}, |
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348 {"promisc", IFF_PROMISC, 0}, |
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349 {"allmulti", IFF_ALLMULTI, 0}, |
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350 {"multicast", IFF_MULTICAST, 0}, |
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351 {"dynamic", IFF_DYNAMIC, 0}, |
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352 {"pointopoint", IFF_POINTOPOINT, SIOCSIFDSTADDR}, |
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353 {"broadcast", IFF_BROADCAST, SIOCSIFBRDADDR}, |
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354 {"netmask", 0, SIOCSIFNETMASK}, |
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355 {"dstaddr", 0, SIOCSIFDSTADDR}, |
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356 {"mtu", IFREQ_OFFSZ(ifr_mtu), SIOCSIFMTU}, |
| 921 | 357 {"keepalive", IFREQ_OFFSZ(ifr_data), SIOCDEVPRIVATE}, // SIOCSKEEPALIVE |
| 358 {"outfill", IFREQ_OFFSZ(ifr_data), SIOCDEVPRIVATE+2}, // SIOCSOUTFILL | |
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359 {"metric", IFREQ_OFFSZ(ifr_metric), SIOCSIFMETRIC}, |
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360 {"txqueuelen", IFREQ_OFFSZ(ifr_qlen), SIOCSIFTXQLEN}, |
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361 {"mem_start", IFREQ_OFFSZ(ifr_map.mem_start), SIOCSIFMAP}, |
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362 {"io_addr", IFREQ_OFFSZ(ifr_map.base_addr), SIOCSIFMAP}, |
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363 {"irq", IFREQ_OFFSZ(ifr_map.irq), SIOCSIFMAP}, |
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364 {"inet", 0, 0}, |
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365 {"inet6", 0, 0} |
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366 }; |
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367 char *s = *argv; |
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368 int rev = (*s == '-'); |
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369 |
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370 s += rev; |
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371 |
| 1128 | 372 // "set hardware address" is oddball enough to special case |
| 373 if (!strcmp(*argv, "hw")) { | |
| 374 char *hw_addr, *ptr, *p; | |
| 375 struct sockaddr *sock = &ifre.ifr_hwaddr; | |
| 376 int count = 6; | |
| 377 | |
| 378 ptr = p = (char *)sock->sa_data; | |
| 379 memset(sock, 0, sizeof(struct sockaddr)); | |
| 380 if (!argv[1]) { | |
| 381 if (!strcmp("ether", *++argv)) sock->sa_family = ARPHRD_ETHER; | |
| 382 else if (!strcmp("infiniband", *argv)) { | |
| 383 sock->sa_family = ARPHRD_INFINIBAND; | |
| 384 count = 20; | |
| 385 p = ptr = toybuf; | |
| 386 } | |
| 387 } | |
| 388 if (!sock->sa_family || !argv[1]) { | |
| 389 toys.exithelp++; | |
| 390 error_exit("bad hw '%s'", *argv); | |
| 391 } | |
| 392 hw_addr = *++argv; | |
| 393 | |
| 394 // Parse and verify address. | |
| 395 while (*hw_addr && (p-ptr) < count) { | |
| 396 int val, len = 0; | |
| 397 | |
| 398 if (*hw_addr == ':') hw_addr++; | |
| 399 sscanf(hw_addr, "%2x%n", &val, &len); | |
| 400 if (len != 2) break; | |
| 401 hw_addr += len; | |
| 402 *p++ = val; | |
| 403 } | |
| 404 | |
| 405 if ((p-ptr) != count || *hw_addr) | |
| 406 error_exit("bad hw-addr '%s'", hw_addr ? hw_addr : ""); | |
| 407 | |
| 408 // the linux kernel's "struct sockaddr" (include/linux/socket.h in the | |
| 409 // kernel source) only has 14 bytes of sa_data, and an infiniband address | |
| 410 // is 20. So if we go through the ioctl, the kernel will truncate | |
| 411 // infiniband addresses, meaning we have to go through sysfs instead. | |
| 412 if (sock->sa_family == ARPHRD_INFINIBAND && !strchr(ifre.ifr_name, '/')) { | |
| 413 int fd; | |
| 414 | |
| 415 sprintf(toybuf, "/sys/class/net/%s/address", ifre.ifr_name); | |
| 416 fd = xopen(toybuf, O_RDWR); | |
| 417 xwrite(fd, *argv, strlen(*argv)); | |
| 418 close(fd); | |
| 419 } else xioctl(TT.sockfd, SIOCSIFHWADDR, &ifre); | |
| 420 continue; | |
| 421 | |
| 422 // Add/remove ipv6 address to interface | |
| 423 | |
| 424 } else if (!strcmp(*argv, "add") || !strcmp(*argv, "del")) { | |
| 425 struct ifreq_inet6 { | |
| 426 struct in6_addr addr; | |
| 427 unsigned prefix; | |
| 428 int index; | |
| 429 } ifre6; | |
| 430 int plen = 128, fd6 = xsocket(AF_INET6, SOCK_DGRAM, 0); | |
| 431 char *prefix; | |
| 432 | |
| 433 if (!argv[1]) { | |
| 434 toys.exithelp++; | |
| 435 error_exit(*argv); | |
| 436 } | |
| 437 | |
| 438 prefix = strchr(argv[1], '/'); | |
| 439 if (prefix) { | |
| 440 plen = atolx_range(prefix+1, 0, 128); | |
| 441 *prefix = 0; | |
| 442 } | |
| 443 | |
| 444 get_addrinfo(argv[1], AF_INET6, &ifre6.addr); | |
| 445 xioctl(fd6, SIOCGIFINDEX, &ifre); | |
| 446 ifre6.index = ifre.ifr_ifindex; | |
| 447 ifre6.prefix = plen; | |
| 448 xioctl(fd6, **(argv++)=='a' ? SIOCSIFADDR : SIOCDIFADDR, &ifre6); | |
| 449 | |
| 450 close(fd6); | |
| 451 continue; | |
| 452 // Iterate through table to find/perform operation | |
| 453 } else for (i = 0; i < sizeof(try)/sizeof(*try); i++) { | |
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454 struct argh *t = try+i; |
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455 int on = t->on, off = t->off; |
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456 |
| 1128 | 457 if (!t->name) { |
| 458 if (isdigit(**argv) || !strcmp(*argv, "default")) argv--; | |
| 459 else continue; | |
| 460 } else if (strcmp(t->name, s)) continue; | |
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461 |
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462 // Is this an SIOCSI entry? |
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463 if ((off|0xff) == 0x89ff) { |
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464 if (!rev) { |
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465 if (!*++argv) show_help(); |
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466 |
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467 // Assign value to ifre field and call ioctl? (via IFREQ_OFFSZ.) |
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468 if (on < 0) { |
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469 long l = strtoul(*argv, 0, 0); |
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470 |
| 921 | 471 if (off == SIOCSIFMAP) xioctl(TT.sockfd, SIOCGIFMAP, &ifre); |
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472 on = -on; |
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473 poke((on>>16) + (char *)&ifre, l, on&15); |
| 921 | 474 xioctl(TT.sockfd, off, &ifre); |
|
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475 break; |
| 1128 | 476 } else if (t->name || !strchr(ifre.ifr_name, ':')) { |
| 477 struct sockaddr_in *si = (struct sockaddr_in *)&ifre.ifr_addr; | |
| 478 | |
| 479 si->sin_family = AF_INET; | |
| 480 | |
| 481 if (!strcmp(*argv, "default")) si->sin_addr.s_addr = INADDR_ANY; | |
| 482 else get_addrinfo(*argv, AF_INET, &si->sin_addr); | |
| 483 xioctl(TT.sockfd, off, &ifre); | |
| 484 } | |
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485 } |
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486 off = 0; |
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487 } |
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488 |
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489 // Set flags |
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490 if (on || off) { |
| 921 | 491 xioctl(TT.sockfd, SIOCGIFFLAGS, &ifre); |
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492 ifre.ifr_flags &= ~(rev ? on : off); |
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493 ifre.ifr_flags |= (rev ? off : on); |
| 921 | 494 xioctl(TT.sockfd, SIOCSIFFLAGS, &ifre); |
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495 } |
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496 |
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497 break; |
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498 } |
| 1128 | 499 if (i == sizeof(try)/sizeof(*try)) { |
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500 toys.exithelp++; |
|
a186f9a1406d
More ifconfig cleanup, described on list.
Rob Landley <rob@landley.net>
parents:
907
diff
changeset
|
501 error_exit("bad argument '%s'", *argv); |
|
869
571e95bdf6af
ifconfig cleanup (Reorder functions to eliminate need for prototypes, put main at end).
Rob Landley <rob@landley.net>
parents:
866
diff
changeset
|
502 } |
|
919
a186f9a1406d
More ifconfig cleanup, described on list.
Rob Landley <rob@landley.net>
parents:
907
diff
changeset
|
503 } |
| 921 | 504 close(TT.sockfd); |
|
869
571e95bdf6af
ifconfig cleanup (Reorder functions to eliminate need for prototypes, put main at end).
Rob Landley <rob@landley.net>
parents:
866
diff
changeset
|
505 } |