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#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/String.h>
#include <AK/Types.h>
#include <LibCore/CFile.h>
#include <net/if.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
String si_bytes(unsigned bytes)
{
if (bytes >= GB)
return String::format("%fGiB", (double)bytes / (double)GB);
if (bytes >= MB)
return String::format("%fMiB", (double)bytes / (double)MB);
if (bytes >= KB)
return String::format("%fKiB", (double)bytes / (double)KB);
return String::format("%dB", bytes);
}
int main(int argc, char** argv)
{
if (argc == 3) {
String ifname = argv[1];
auto address = IPv4Address::from_string(argv[2]);
if (!address.has_value()) {
fprintf(stderr, "Invalid IPv4 address: '%s'\n", argv[2]);
return 1;
}
int fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
if (fd < 0) {
perror("socket");
return 1;
}
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, ifname.characters(), IFNAMSIZ);
ifr.ifr_addr.sa_family = AF_INET;
((sockaddr_in&)ifr.ifr_addr).sin_addr.s_addr = address.value().to_in_addr_t();
int rc = ioctl(fd, SIOCSIFADDR, &ifr);
if (rc < 0) {
perror("ioctl(SIOCSIFADDR)");
return 1;
}
return 0;
}
auto file = CFile::construct("/proc/net/adapters");
if (!file->open(CIODevice::ReadOnly)) {
fprintf(stderr, "Error: %s\n", file->error_string());
return 1;
}
auto file_contents = file->read_all();
auto json = JsonValue::from_string(file_contents).as_array();
json.for_each([](auto& value) {
auto if_object = value.as_object();
auto name = if_object.get("name").to_string();
auto class_name = if_object.get("class_name").to_string();
auto mac_address = if_object.get("mac_address").to_string();
auto ipv4_address = if_object.get("ipv4_address").to_string();
auto packets_in = if_object.get("packets_in").to_u32();
auto bytes_in = if_object.get("bytes_in").to_u32();
auto packets_out = if_object.get("packets_out").to_u32();
auto bytes_out = if_object.get("bytes_out").to_u32();
auto mtu = if_object.get("mtu").to_u32();
printf("%s:\n", name.characters());
printf(" mac: %s\n", mac_address.characters());
printf(" ipv4: %s\n", ipv4_address.characters());
printf(" class: %s\n", class_name.characters());
printf(" RX: %u packets %u bytes (%s)\n", packets_in, bytes_in, si_bytes(bytes_in).characters());
printf(" TX: %u packets %u bytes (%s)\n", packets_out, bytes_out, si_bytes(bytes_out).characters());
printf(" MTU: %u\n", mtu);
printf("\n");
});
return 0;
}
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