Created
October 15, 2016 10:26
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ONDD UDP inject
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#include <errno.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <sys/socket.h> | |
#include <sys/types.h> | |
#include <sys/un.h> | |
#include <netdb.h> | |
#include <netinet/in.h> | |
#include <unistd.h> | |
#define SOCKET_NAME "/tmp/run/ondd.data" | |
#define BUFFER_SIZE 1000 | |
#define UDP_PORT "10000" | |
int main(int argc, char *argv[]) { | |
struct sockaddr_un ondd_addr; | |
int ondd_socket, udp_socket; | |
char buffer[BUFFER_SIZE]; | |
struct addrinfo hints, *udp_addr; | |
ssize_t len; | |
/* Connect to ONDD */ | |
if ((ondd_socket = socket(AF_UNIX, SOCK_SEQPACKET, 0)) == -1) { | |
perror("Failed to create SOCK_SEQPACKET socket"); | |
exit(EXIT_FAILURE); | |
} | |
memset(&ondd_addr, 0, sizeof(ondd_addr)); | |
ondd_addr.sun_family = AF_UNIX; | |
strncpy(ondd_addr.sun_path, SOCKET_NAME, sizeof(ondd_addr.sun_path) - 1); | |
if (connect(ondd_socket, (const struct sockaddr *) &ondd_addr, | |
sizeof(struct sockaddr_un)) == -1) { | |
perror("Failed to connect to ONDD socket"); | |
exit(EXIT_FAILURE); | |
} | |
/* Listen on UDP socket */ | |
memset(&hints, 0, sizeof(hints)); | |
hints.ai_family = AF_UNSPEC; | |
hints.ai_socktype = SOCK_DGRAM; | |
hints.ai_protocol = 0; | |
hints.ai_flags=AI_PASSIVE | AI_ADDRCONFIG; | |
udp_addr = NULL; | |
if (getaddrinfo(NULL, UDP_PORT, &hints, &udp_addr)) { | |
perror("Failed to get address info for UDP socket"); | |
exit(EXIT_FAILURE); | |
} | |
if ((udp_socket = socket(udp_addr->ai_family, udp_addr->ai_socktype, | |
udp_addr->ai_protocol)) == -1) { | |
perror("Failed to create UDP socket"); | |
exit(EXIT_FAILURE); | |
} | |
if (bind(udp_socket, udp_addr->ai_addr, udp_addr->ai_addrlen) == -1) { | |
perror("Failed to bind to UDP socket"); | |
exit(EXIT_FAILURE); | |
} | |
freeaddrinfo(udp_addr); | |
while (1) { | |
/* Receive from UDP socket */ | |
if ((len = recv(udp_socket, buffer, sizeof(buffer), 0)) == -1) { | |
perror("Failed to receive from UDP socket"); | |
exit(EXIT_FAILURE); | |
} | |
/* Write frame to ONDD */ | |
if (write(ondd_socket, buffer, len) != len) { | |
/* TODO: hanle partial writes */ | |
perror("write()"); | |
exit(EXIT_FAILURE); | |
} | |
} | |
close(ondd_socket); | |
close(udp_socket); | |
return 0; | |
} |
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