Fix build on FreeBSD

Closes #47

arch/arch-freebsd.c

@@ -5,6 +5,20 @@
 #include <sys/types.h>
 
 #include "arch-posix.c"
+#include <net/if.h>
+
+int disk_dev_identify(disk_dev_t *dev, char *vendor, char *model, char *fw_rev, char *serial, bool *is_ata, unsigned char *ata_buf, unsigned *ata_buf_len)
+{
+	(void)dev;
+	strcpy(vendor, "UNKNOWN");
+	strcpy(model, "UNKNOWN");
+	strcpy(fw_rev, "UNKN");
+	strcpy(serial, "UNKNOWN");
+	*is_ata = 0;
+	*ata_buf_len = 0;
+	*ata_buf = 0;
+	return 0;
+}
 
 int disk_dev_read_cap(disk_dev_t *dev, uint64_t *size_bytes, uint64_t *sector_size)
 {
@@ -18,3 +32,50 @@ int disk_dev_read_cap(disk_dev_t *dev, uint64_t *size_bytes, uint64_t *sector_si
 
 	return 0;
 }
+
+void mac_read(unsigned char *buf, int len)
+{
+	struct ifreq ifr;
+	struct ifconf ifc;
+	char data[1024];
+	int success = 0;
+
+	buf[0] = 0;
+
+	int sock = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock == -1) {
+		return;
+	};
+
+	ifc.ifc_len = sizeof(data);
+	ifc.ifc_buf = data;
+	if (ioctl(sock, SIOCGIFCONF, &ifc) == -1) {
+		/* handle error */
+		goto Exit;
+	}
+
+	struct ifreq* it = ifc.ifc_req;
+	const struct ifreq* const end = it + (ifc.ifc_len / sizeof(struct ifreq));
+
+	for (; it != end; ++it) {
+		strcpy(ifr.ifr_name, it->ifr_name);
+		if (ioctl(sock, SIOCGIFFLAGS, &ifr) == 0) {
+			if (! (ifr.ifr_flags & IFF_LOOPBACK)) { // don't count loopback
+				if (ioctl(sock, SIOCGIFMAC, &ifr) == 0) {
+					success = 1;
+					break;
+				}
+			}
+		}
+		else { /* handle error */ }
+	}
+
+	if (success) {
+		memcpy(buf, ifr.ifr_ifru.ifru_data, len >= 6 ? 6 : len);
+	} else {
+		memset(buf, 0, len);
+	}
+
+Exit:
+	close(sock);
+}

arch/arch-posix.c

@@ -72,7 +72,17 @@ ssize_t disk_dev_write(disk_dev_t *dev, uint64_t offset_bytes, uint32_t len_byte
 
 void disk_dev_cdb_in(disk_dev_t *dev, unsigned char *cdb, unsigned cdb_len, unsigned char *buf, unsigned buf_size, unsigned *buf_read, unsigned char *sense, unsigned sense_size, unsigned *sense_read, io_result_t *io_res)
 {
+	(void)sense_size;
+	(void)sense;
+	(void)buf_size;
+	(void)buf;
+	(void)cdb_len;
+	(void)cdb;
+	(void)dev;
+
+	*sense_read = 0;
+	*buf_read = 0;
 	memset(&io_res, 0, sizeof(*io_res));
 	io_res->data = DATA_NONE;
-	io_res->error = ERROR_UNKNOWN;
+	io_res->error = ERROR_NONE;
 }

hdrhistogram/src/hdr_histogram_log.c

@@ -39,7 +39,7 @@
 #define be64toh(x) OSSwapBigToHostInt64(x)
 #define le64toh(x) OSSwapLittleToHostInt64(x)
 
-#elif defined(FREEBSD)
+#elif defined(__FreeBSD__)
 
 #include <sys/endian.h>