dhcp_getinfo
if (dhcp_getinfo(DSYM_VENDOR, VS_NFSMNT_ROOTSRVR_NAME, 0,
if (!dhcp_getinfo(DSYM_VENDOR, VS_NFSMNT_ROOTSRVR_IP, 0,
if (dhcp_getinfo(DSYM_VENDOR, VS_NFSMNT_ROOTPATH, 0,
if (dhcp_getinfo(DSYM_VENDOR, VS_NFSMNT_BOOTFILE, 0,
if (dhcp_getinfo(DSYM_VENDOR, VS_BOOT_NFS_READSIZE, 0,
if (dhcp_getinfo(DSYM_VENDOR, VS_NFSMNT_ROOTOPTS, 0,
extern boolean_t dhcp_getinfo(uchar_t, uint16_t, uint16_t, void *, size_t *);