64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
#include <stdbool.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdnoreturn.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <arpa/inet.h>
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#include <signal.h>
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noreturn void err(const char *fn) {
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perror(fn);
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exit(1);
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}
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void sigchld_handler(int signal) {
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int old_err = errno;
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errno = 0;
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while (errno != ECHILD) {
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int status;
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waitpid(-1, &status, 0);
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}
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errno = old_err;
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}
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int main() {
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signal(SIGCHLD, sigchld_handler);
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int sock = socket(AF_INET, SOCK_STREAM, 0);
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if (sock < 0) err("socket");
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struct sockaddr_in addr = {
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.sin_family = AF_INET,
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.sin_addr = {0},
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.sin_port = htons(7777),
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};
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int e = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
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if (e < 0) err("bind");
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e = listen(sock, 1);
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if (e < 0) err("listen");
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while (true) {
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struct sockaddr_in recv = {0};
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socklen_t recv_len = sizeof(recv);
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int conn = accept(sock, (struct sockaddr *)&recv, &recv_len);
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if (conn < 0) err("accept");
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if (recv_len != sizeof(recv)) err("accept len");
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if (fork()) {
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close(conn);
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} else {
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dup2(conn, 0);
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dup2(conn, 1);
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execl("/opt/veronica/bin/ver-server-0.6b.pl", "/opt/veronica/bin/ver-server-0.6b.pl", (char *)NULL);
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}
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}
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}
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