Move the ifr_ifindex FreeBSD definition into a header file to reduce code duplication

src/modules/module-netjack2-manager.c

@@ -39,10 +39,6 @@
 #include "module-netjack2/peer.c"
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 #ifndef IPTOS_DSCP
 #define IPTOS_DSCP_MASK 0xfc
 #define IPTOS_DSCP(x) ((x) & IPTOS_DSCP_MASK)

src/modules/module-rtp-sap.c

@@ -29,7 +29,6 @@
 #include "network-utils.h"
 
 #ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
 #define SO_PASSCRED LOCAL_CREDS_PERSISTENT
 #endif
 

src/modules/module-rtp-session.c

@@ -39,10 +39,6 @@
 #include <module-rtp/stream.h>
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 /** \page page_module_rtp_session RTP session
  *
  * The `rtp-session` module creates a media session that is announced

src/modules/module-rtp-source.c

@@ -32,10 +32,6 @@
 #include <module-rtp/stream.h>
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 /** \page page_module_rtp_source RTP source
  *
  * The `rtp-source` module creates a PipeWire source that receives audio

src/modules/module-vban-recv.c

@@ -32,10 +32,6 @@
 #include <module-vban/stream.h>
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 /** \page page_module_vban_recv VBAN receiver
  *
  * The `vban-recv` module creates a PipeWire source that receives audio

src/modules/network-utils.h

@@ -8,6 +8,10 @@
 #include <net/if.h>
 #include <errno.h>
 
+#ifdef __FreeBSD__
+#define ifr_ifindex ifr_index
+#endif
+
 static inline int pw_net_parse_address(const char *address, uint16_t port,
 		struct sockaddr_storage *addr, socklen_t *len)
 {