71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
#include <assert.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#define SOCKET_PATH "/tmp/nix-daemon"
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int main(int argc, char * * argv)
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{
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int res;
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int sock = socket(PF_UNIX, SOCK_STREAM, 0);
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assert(sock != -1);
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unlink(SOCKET_PATH);
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struct sockaddr_un addr;
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addr.sun_family = AF_UNIX;
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strcpy(addr.sun_path, SOCKET_PATH);
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res = bind(sock, (struct sockaddr *) &addr, sizeof(addr));
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assert(res != -1);
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res = listen(sock, 5);
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if (res == -1)
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fprintf(stderr, "%s\n", strerror(errno));
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assert(res != -1);
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while (1) {
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struct sockaddr_un remoteAddr;
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socklen_t remoteAddrLen = sizeof(remoteAddr);
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int remote = accept(sock,
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(struct sockaddr *) &remoteAddr, &remoteAddrLen);
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if (remote == -1)
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fprintf(stderr, "%s\n", strerror(errno));
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assert(remote != -1);
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fprintf(stderr, "connection %d\n", remote);
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while (1) {
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int i;
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ssize_t len;
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len = recv(remote, &i, sizeof(i), 0);
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if (len < sizeof(i)) break;
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// printf("%d\n", i);
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int j = i * 2;
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len = send(remote, &j, sizeof(j), 0);
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if (len == -1)
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fprintf(stderr, "%s\n", strerror(errno));
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assert(len == sizeof(j));
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}
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close(remote);
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}
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close(sock);
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return 0;
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}
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