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-rw-r--r--backends/artnet.c154
1 files changed, 37 insertions, 117 deletions
diff --git a/backends/artnet.c b/backends/artnet.c
index d9ebfe5..57eb7b1 100644
--- a/backends/artnet.c
+++ b/backends/artnet.c
@@ -1,13 +1,10 @@
#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <unistd.h>
-#include <fcntl.h>
#include <ctype.h>
#include <errno.h>
+#include "libmmbackend.h"
#include "artnet.h"
+
#define MAX_FDS 255
#define BACKEND_NAME "artnet"
@@ -16,68 +13,14 @@ static size_t artnet_fds = 0;
static artnet_descriptor* artnet_fd = NULL;
static int artnet_listener(char* host, char* port){
- int fd = -1, status, yes = 1, flags;
- struct addrinfo hints = {
- .ai_family = AF_UNSPEC,
- .ai_socktype = SOCK_DGRAM,
- .ai_flags = AI_PASSIVE
- };
- struct addrinfo* info;
- struct addrinfo* addr_it;
-
+ int fd;
if(artnet_fds >= MAX_FDS){
fprintf(stderr, "ArtNet backend descriptor limit reached\n");
return -1;
}
- status = getaddrinfo(host, port, &hints, &info);
- if(status){
- fprintf(stderr, "Failed to get socket info for %s port %s: %s\n", host, port, gai_strerror(status));
- return -1;
- }
-
- for(addr_it = info; addr_it != NULL; addr_it = addr_it->ai_next){
- fd = socket(addr_it->ai_family, addr_it->ai_socktype, addr_it->ai_protocol);
- if(fd < 0){
- continue;
- }
-
- yes = 1;
- if(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(yes)) < 0){
- fprintf(stderr, "Failed to set SO_REUSEADDR on socket\n");
- }
-
- yes = 1;
- if(setsockopt(fd, SOL_SOCKET, SO_BROADCAST, (void*)&yes, sizeof(yes)) < 0){
- fprintf(stderr, "Failed to set SO_BROADCAST on socket\n");
- }
-
- yes = 0;
- if(setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, (void*)&yes, sizeof(yes)) < 0){
- fprintf(stderr, "Failed to unset IP_MULTICAST_LOOP option: %s\n", strerror(errno));
- }
-
- status = bind(fd, addr_it->ai_addr, addr_it->ai_addrlen);
- if(status < 0){
- close(fd);
- continue;
- }
-
- break;
- }
-
- freeaddrinfo(info);
-
- if(!addr_it){
- fprintf(stderr, "Failed to create listening socket for %s port %s\n", host, port);
- return -1;
- }
-
- //set nonblocking
- flags = fcntl(fd, F_GETFL, 0);
- if(fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0){
- fprintf(stderr, "Failed to set ArtNet descriptor nonblocking\n");
- close(fd);
+ fd = mmbackend_socket(host, port, SOCK_DGRAM, 1, 1);
+ if(fd < 0){
return -1;
}
@@ -89,7 +32,7 @@ static int artnet_listener(char* host, char* port){
return -1;
}
- fprintf(stderr, "ArtNet backend interface %zu bound to %s port %s\n", artnet_fds, host, port);
+ fprintf(stderr, "ArtNet backend interface %" PRIsize_t " bound to %s port %s\n", artnet_fds, host, port);
artnet_fd[artnet_fds].fd = fd;
artnet_fd[artnet_fds].output_instances = 0;
artnet_fd[artnet_fds].output_instance = NULL;
@@ -98,51 +41,7 @@ static int artnet_listener(char* host, char* port){
return 0;
}
-static int artnet_parse_addr(char* host, char* port, struct sockaddr_storage* addr, socklen_t* len){
- struct addrinfo* head;
- struct addrinfo hints = {
- .ai_family = AF_UNSPEC,
- .ai_socktype = SOCK_DGRAM
- };
-
- int error = getaddrinfo(host, port, &hints, &head);
- if(error || !head){
- fprintf(stderr, "Failed to parse address %s port %s: %s\n", host, port, gai_strerror(error));
- return 1;
- }
-
- memcpy(addr, head->ai_addr, head->ai_addrlen);
- *len = head->ai_addrlen;
-
- freeaddrinfo(head);
- return 0;
-}
-
-static int artnet_separate_hostspec(char* in, char** host, char** port){
- size_t u;
-
- if(!in || !host || !port){
- return 1;
- }
-
- for(u = 0; in[u] && !isspace(in[u]); u++){
- }
-
- //guess
- *host = in;
-
- if(in[u]){
- in[u] = 0;
- *port = in + u + 1;
- }
- else{
- //no port given
- *port = ARTNET_PORT;
- }
- return 0;
-}
-
-int init(){
+MM_PLUGIN_API int init(){
backend artnet = {
.name = BACKEND_NAME,
.conf = artnet_configure,
@@ -155,6 +54,11 @@ int init(){
.shutdown = artnet_shutdown
};
+ if(sizeof(artnet_instance_id) != sizeof(uint64_t)){
+ fprintf(stderr, "ArtNet instance identification union out of bounds\n");
+ return 1;
+ }
+
//register backend
if(mm_backend_register(artnet)){
fprintf(stderr, "Failed to register ArtNet backend\n");
@@ -171,8 +75,14 @@ static int artnet_configure(char* option, char* value){
return 0;
}
else if(!strcmp(option, "bind")){
- if(artnet_separate_hostspec(value, &host, &port)){
- fprintf(stderr, "Not a valid ArtNet bind address: %s\n", value);
+ mmbackend_parse_hostspec(value, &host, &port);
+
+ if(!port){
+ port = ARTNET_PORT;
+ }
+
+ if(!host){
+ fprintf(stderr, "Not valid ArtNet bind address given\n");
return 1;
}
@@ -228,19 +138,25 @@ static int artnet_configure_instance(instance* inst, char* option, char* value){
return 0;
}
else if(!strcmp(option, "dest") || !strcmp(option, "destination")){
- if(artnet_separate_hostspec(value, &host, &port)){
+ mmbackend_parse_hostspec(value, &host, &port);
+
+ if(!port){
+ port = ARTNET_PORT;
+ }
+
+ if(!host){
fprintf(stderr, "Not a valid ArtNet destination for instance %s\n", inst->name);
return 1;
}
- return artnet_parse_addr(host, port, &data->dest_addr, &data->dest_len);
+ return mmbackend_parse_sockaddr(host, port, &data->dest_addr, &data->dest_len);
}
fprintf(stderr, "Unknown ArtNet option %s for instance %s\n", option, inst->name);
return 1;
}
-static channel* artnet_channel(instance* inst, char* spec){
+static channel* artnet_channel(instance* inst, char* spec, uint8_t flags){
artnet_instance_data* data = (artnet_instance_data*) inst->impl;
char* spec_next = spec;
unsigned chan_a = strtoul(spec, &spec_next, 10);
@@ -301,7 +217,7 @@ static int artnet_transmit(instance* inst){
};
memcpy(frame.data, data->data.out, 512);
- if(sendto(artnet_fd[data->fd_index].fd, &frame, sizeof(frame), 0, (struct sockaddr*) &data->dest_addr, data->dest_len) < 0){
+ if(sendto(artnet_fd[data->fd_index].fd, (uint8_t*) &frame, sizeof(frame), 0, (struct sockaddr*) &data->dest_addr, data->dest_len) < 0){
fprintf(stderr, "Failed to output ArtNet frame for instance %s: %s\n", inst->name, strerror(errno));
}
@@ -319,7 +235,7 @@ static int artnet_set(instance* inst, size_t num, channel** c, channel_value* v)
artnet_instance_data* data = (artnet_instance_data*) inst->impl;
if(!data->dest_len){
- fprintf(stderr, "ArtNet instance %s not enabled for output (%zu channel events)\n", inst->name, num);
+ fprintf(stderr, "ArtNet instance %s not enabled for output (%" PRIsize_t " channel events)\n", inst->name, num);
return 0;
}
@@ -384,7 +300,7 @@ static inline int artnet_process_frame(instance* inst, artnet_pkt* frame){
}
if(!chan){
- fprintf(stderr, "Active channel %zu on %s not known to core\n", p, inst->name);
+ fprintf(stderr, "Active channel %" PRIsize_t " on %s not known to core\n", p, inst->name);
return 1;
}
@@ -456,7 +372,11 @@ static int artnet_handle(size_t num, managed_fd* fds){
}
} while(bytes_read > 0);
+ #ifdef _WIN32
+ if(bytes_read < 0 && WSAGetLastError() != WSAEWOULDBLOCK){
+ #else
if(bytes_read < 0 && errno != EAGAIN){
+ #endif
fprintf(stderr, "ArtNet failed to receive data: %s\n", strerror(errno));
}
@@ -527,7 +447,7 @@ static int artnet_start(){
}
}
- fprintf(stderr, "ArtNet backend registering %zu descriptors to core\n", artnet_fds);
+ fprintf(stderr, "ArtNet backend registering %" PRIsize_t " descriptors to core\n", artnet_fds);
for(u = 0; u < artnet_fds; u++){
if(mm_manage_fd(artnet_fd[u].fd, BACKEND_NAME, 1, (void*) u)){
goto bail;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 03:02:47 +0000