ref: 94443daf8e248e65afc8d3f17f26efea22748b51
dir: /emu/Linux/devfs.c/
#include "devfs-posix.c" #include <linux/hdreg.h> #include <linux/fs.h> #include <sys/ioctl.h> static vlong osdisksize(int fd) { uvlong u64; long l; struct hd_geometry geo; memset(&geo, 0, sizeof geo); l = 0; u64 = 0; #ifdef BLKGETSIZE64 if(ioctl(fd, BLKGETSIZE64, &u64) >= 0) return u64; #endif if(ioctl(fd, BLKGETSIZE, &l) >= 0) return l*512; if(ioctl(fd, HDIO_GETGEO, &geo) >= 0) return (vlong)geo.heads*geo.sectors*geo.cylinders*512; return 0; }