Fix issues found by Coverity Scan

5 files changed, 9 insertions, 2 deletions

diff --git a/backends/artnet.c b/backends/artnet.c
index d167dec..f98ae96 100644
--- a/backends/artnet.c
+++ b/backends/artnet.c
@@ -489,6 +489,7 @@ static int artnet_start(){
 	}
 
 	if(!artnet_fds){
+		free(inst);
 		fprintf(stderr, "Failed to start ArtNet backend: no descriptors bound\n");
 		return 1;
 	}
diff --git a/backends/evdev.c b/backends/evdev.c
index e26eb76..979698f 100644
--- a/backends/evdev.c
+++ b/backends/evdev.c
@@ -359,6 +359,7 @@ static int evdev_start(){
 		if(data->output_enabled){
 			if(libevdev_uinput_create_from_device(data->output_proto, LIBEVDEV_UINPUT_OPEN_MANAGED, &data->output_ev)){
 				fprintf(stderr, "Failed to create evdev output device: %s\n", strerror(errno));
+				free(inst);
 				return 1;
 			}
 			fprintf(stderr, "Created device node %s for instance %s\n", libevdev_uinput_get_devnode(data->output_ev), inst[u]->name);
diff --git a/backends/osc.c b/backends/osc.c
index adc91f5..5f94ec2 100644
--- a/backends/osc.c
+++ b/backends/osc.c
@@ -334,6 +334,7 @@ static int osc_listener(char* host, char* port){
 	//set nonblocking
 	flags = fcntl(fd, F_GETFL, 0);
 	if(fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0){
+		close(fd);
 		fprintf(stderr, "Failed to set OSC descriptor nonblocking\n");
 		return -1;
 	}
@@ -697,7 +698,7 @@ static int backend_handle(size_t num, managed_fd* fds){
 			else{
 				bytes_read = recv(fds[fd].fd, recv_buf, sizeof(recv_buf), 0);
 			}
-			if(data->root && strncmp(recv_buf, data->root, strlen(data->root))){
+			if(data->root && strncmp(recv_buf, data->root, min(bytes_read, strlen(data->root)))){
 				//ignore packet for different root
 				continue;
 			}
@@ -802,7 +803,9 @@ static int backend_shutdown(){
 		}
 		free(data->channel);
 		free(data->root);
-		close(data->fd);
+		if(data->fd >= 0){
+			close(data->fd);
+		}
 		data->fd = -1;
 		data->channels = 0;
 		free(inst[u]->impl);
diff --git a/midimonster.h b/midimonster.h
index 9f1a33e..0b794f3 100644
--- a/midimonster.h
+++ b/midimonster.h
@@ -4,6 +4,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #define max(a,b) (((a) > (b)) ? (a) : (b))
+#define min(a,b) (((a) < (b)) ? (a) : (b))
 #ifdef DEBUG
 	#define DBGPF(format, ...) fprintf(stderr, (format), __VA_ARGS__)
 	#define DBG(message) fprintf(stderr, "%s", (message))
diff --git a/plugin.c b/plugin.c
index 39a92be..7b5e922 100644
--- a/plugin.c
+++ b/plugin.c
@@ -40,6 +40,7 @@ static int plugin_attach(char* path, char* file){
 		}
 	}
 	else{
+		free(lib);
 		return 0;
 	}
 	free(lib);