diff options
Diffstat (limited to 'miscutils')
| -rw-r--r-- | miscutils/hdparm.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/miscutils/hdparm.c b/miscutils/hdparm.c index f237d32f5..f473add90 100644 --- a/miscutils/hdparm.c +++ b/miscutils/hdparm.c @@ -1325,11 +1325,8 @@ static void dump_identity(const struct hd_driveid *id) } if_printf((!(id->field_valid&1))," (maybe):"); -#if __BYTE_ORDER == __BIG_ENDIAN - capacity = (id->cur_capacity0 << 16) | id->cur_capacity1; -#else - capacity = (id->cur_capacity1 << 16) | id->cur_capacity0; -#endif + if (BB_BIG_ENDIAN) capacity = (id->cur_capacity0 << 16) | id->cur_capacity1; + else capacity = (id->cur_capacity1 << 16) | id->cur_capacity0; printf(" CurCHS=%u/%u/%u, CurSects=%lu, LBA=%s",id->cur_cyls, id->cur_heads, id->cur_sectors, capacity , ((id->capability&2)==0)?"no":"yes"); @@ -1827,6 +1824,8 @@ static void process_dev(char *devname) #ifndef HDIO_DRIVE_CMD int force_operation = 0; #endif + /* Please restore args[n] to these values after each ioctl + except for args[2] */ unsigned char args[4] = {WIN_SETFEATURES,0,0,0}; fd = bb_xopen(devname, O_RDONLY|O_NONBLOCK); @@ -1852,6 +1851,8 @@ static void process_dev(char *devname) args[1] = hwif_ctrl; args[2] = hwif_irq; bb_ioctl(fd, HDIO_SCAN_HWIF, args, "HDIO_SCAN_HWIF"); + args[0] = WIN_SETFEATURES; + args[1] = 0; } #endif if (set_piomode) @@ -1921,8 +1922,10 @@ static void process_dev(char *devname) if (set_doorlock) { args[0] = doorlock ? WIN_DOORLOCK : WIN_DOORUNLOCK; + args[2] = 0; if_printf_on_off(get_doorlock," setting drive doorlock to %ld", doorlock); bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(doorlock)"); + args[0] = WIN_SETFEATURES; } if (set_dkeep) { @@ -1943,6 +1946,7 @@ static void process_dev(char *devname) args[2] = 0xab; if_printf(get_prefetch," setting drive prefetch to %ld\n", prefetch); bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setprefetch)"); + args[1] = 0; } if (set_xfermode) { @@ -1954,6 +1958,7 @@ static void process_dev(char *devname) interpret_xfermode(xfermode_requested); } bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD(setxfermode)"); + args[1] = 0; } if (set_lookahead) { @@ -1980,6 +1985,7 @@ static void process_dev(char *devname) if_printf(get_apmmode," 0x%02lX (%ld)\n",apmmode,apmmode); } bb_ioctl(fd, HDIO_DRIVE_CMD, &args,"HDIO_DRIVE_CMD"); + args[1] = 0; } if (set_wcache) { @@ -2001,6 +2007,11 @@ static void process_dev(char *devname) bb_ioctl(fd, HDIO_DRIVE_CMD, &flushcache, "HDIO_DRIVE_CMD(flushcache)"); #endif /* DO_FLUSHCACHE */ } + + /* In code below, we do not preserve args[0], but the rest + is preserved, including args[2] */ + args[2] = 0; + if (set_standbynow) { #ifndef WIN_STANDBYNOW1 @@ -2041,6 +2052,7 @@ static void process_dev(char *devname) interpret_standby(standby_requested); } bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setidle1)"); + args[1] = 0; } #else /* HDIO_DRIVE_CMD */ if (force_operation) @@ -2173,6 +2185,7 @@ static void process_dev(char *devname) } else state = (args[2] == 255) ? "active/idle" : "standby"; + args[1] = args[2] = 0; printf(" drive state is: %s\n", state); } |