// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <arpa/inet.h> #include <sys/socket.h> #include "../../net/lib/ksft.h" int main(int argc, char *argv[]) { struct sockaddr_in address; unsigned int napi_id; unsigned int port; socklen_t optlen; char buf[1024]; int opt = 1; int server; int client; int ret; server = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (server < 0) { perror("socket creation failed"); if (errno == EAFNOSUPPORT) return -1; return 1; } port = atoi(argv[2]); if (setsockopt(server, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt))) { perror("setsockopt"); return 1; } address.sin_family = AF_INET; inet_pton(AF_INET, argv[1], &address.sin_addr); address.sin_port = htons(port); if (bind(server, (struct sockaddr *)&address, sizeof(address)) < 0) { perror("bind failed"); return 1; } if (listen(server, 1) < 0) { perror("listen"); return 1; } ksft_ready(); client = accept(server, NULL, 0); if (client < 0) { perror("accept"); return 1; } optlen = sizeof(napi_id); ret = getsockopt(client, SOL_SOCKET, SO_INCOMING_NAPI_ID, &napi_id, &optlen); if (ret != 0) { perror("getsockopt"); return 1; } read(client, buf, 1024); ksft_wait(); if (napi_id == 0) { fprintf(stderr, "napi ID is 0\n"); return 1; } close(client); close(server); return 0; }