diff --git a/libftl/ftl_private.h b/libftl/ftl_private.h
index 62e5785..7df3d13 100644
--- a/libftl/ftl_private.h
+++ b/libftl/ftl_private.h
@@ -131,6 +131,8 @@
 #define strcpy_s(dst, dstsz, src) strcpy(dst, src)
 #define _strdup(src) strdup(src)
 #define sscanf_s sscanf
+#define memcpy_s(dst, dstsz, src, cnt) memcpy(dst, src, cnt)
+#define vsnprintf_s(buf, bufsz, cnt, fmt, ...) vsnprintf(buf, cnt, fmt, __VA_ARGS__)
 #endif
 
 typedef enum {
diff --git a/libftl/handshake.c b/libftl/handshake.c
index cb4c70d..3e030bc 100644
--- a/libftl/handshake.c
+++ b/libftl/handshake.c
@@ -63,7 +63,11 @@ ftl_status_t _init_control_connection(ftl_stream_configuration_private_t *ftl) {
     return retval;
   }
   
+  // Suppressing getaddrinfo warning here, Windows prefers GetAddrInfoW,etc. but this doesn't exist on Linux
+  #pragma warning(push)
+  #pragma warning(disable:38026)
   err = getaddrinfo(ftl->ingest_hostname, ingest_port_str, &hints, &resolved_names);
+  #pragma warning(pop)
   if (err != 0) {
     FTL_LOG(ftl, FTL_LOG_ERROR, "getaddrinfo failed to look up ingest address %s.", ftl->ingest_hostname);
     FTL_LOG(ftl, FTL_LOG_ERROR, "gai error was: %s", gai_strerror(err));
@@ -366,7 +370,7 @@ static ftl_response_code_t _ftl_send_command(ftl_stream_configuration_private_t
 
     memset(buf, 0, buflen);
 
-    len = vsnprintf(buf, buflen, format, valist);
+    len = vsnprintf_s(buf, buflen, MAX_INGEST_COMMAND_LEN, format, valist);
 
     va_end(valist);
 
diff --git a/libftl/ingest.c b/libftl/ingest.c
index f0a1230..7b4b2ff 100644
--- a/libftl/ingest.c
+++ b/libftl/ingest.c
@@ -36,7 +36,12 @@ static int _ping_server(const char *hostname, int port) {
 
   snprintf(port_str, 10, "%d", port);
   
+  // Suppressing getaddrinfo warning here, Windows prefers GetAddrInfoW,etc. but this doesn't exist on Linux
+  #pragma warning(push)
+  #pragma warning(disable:38026)
    err = getaddrinfo(hostname, port_str, &hints, &resolved_names);
+  #pragma warning(pop)
+
   if (err != 0) {
     return FTL_DNS_FAILURE;
   }
diff --git a/libftl/logging.c b/libftl/logging.c
index c7ef619..89b7ec1 100644
--- a/libftl/logging.c
+++ b/libftl/logging.c
@@ -22,6 +22,7 @@
  * SOFTWARE.
  **/
 
+#include <stdlib.h> 
 #include "ftl.h"
 #include "ftl_private.h"
 
@@ -32,7 +33,7 @@ void ftl_log_msg(ftl_stream_configuration_private_t *ftl, ftl_log_severity_t log
 
   m.msg.log.log_level = log_level;
   va_start(args, fmt);
-  vsnprintf(m.msg.log.string, sizeof(m.msg.log.string), fmt, args);
+  vsnprintf_s(m.msg.log.string, sizeof(m.msg.log.string), _TRUNCATE, fmt, args);
   va_end(args);
 
   enqueue_status_msg(ftl, &m);
diff --git a/libftl/media.c b/libftl/media.c
index f32888a..2973547 100644
--- a/libftl/media.c
+++ b/libftl/media.c
@@ -842,7 +842,7 @@ static int _media_send_slot(ftl_stream_configuration_private_t *ftl, nack_slot_t
   int pkt_len;
 
   os_lock_mutex(&ftl->media.mutex);
-  memcpy(pkt, slot->packet, slot->len);
+  memcpy_s(pkt, sizeof(pkt) * MAX_PACKET_BUFFER, slot->packet, slot->len);
   pkt_len = slot->len;
   os_unlock_mutex(&ftl->media.mutex);