aboutsummaryrefslogtreecommitdiff
path: root/miscutils
diff options
context:
space:
mode:
authorGravatar Rob Landley <rob@landley.net>2006-04-29 16:03:40 +0000
committerGravatar Rob Landley <rob@landley.net>2006-04-29 16:03:40 +0000
commit5f8b5ecda28afbdfd3fbdd89caccb65a67540264 (patch)
treed6ad55af1a6ebbd8444bea0919533506f7e1a543 /miscutils
parente5b281f89e90cdd9c646b7208f59a236f82ee936 (diff)
downloadbusybox-5f8b5ecda28afbdfd3fbdd89caccb65a67540264.tar.gz
busybox-5f8b5ecda28afbdfd3fbdd89caccb65a67540264.tar.bz2
Another patch from Denis Vlasenko:
Make hdparm smaller: * Make bb_ioctl return the status * Replace ioctl with bb_ioctl in a few places * Add bb_ioctl_alt, use where appropriate (four places) * unsigned char args1[4+512] = {WIN_IDENTIFY,0,0,1,}; ate 0.5k of rodata, fix that
Diffstat (limited to 'miscutils')
-rw-r--r--miscutils/hdparm.c90
1 files changed, 42 insertions, 48 deletions
diff --git a/miscutils/hdparm.c b/miscutils/hdparm.c
index 33f05be0c..911688f46 100644
--- a/miscutils/hdparm.c
+++ b/miscutils/hdparm.c
@@ -465,12 +465,23 @@ static const char * const secu_str[] = {
static const char bb_msg_shared_mem[] = "could not %s sharedmem buf";
static const char bb_msg_op_not_supp[] = " operation not supported on %s disks";
-static void bb_ioctl(int fd, int request, void *argp, const char *string)
+static int bb_ioctl(int fd, int request, void *argp, const char *string)
{
- if (ioctl (fd, request, argp) != 0)
+ int e = ioctl(fd, request, argp);
+ if (e && string)
bb_perror_msg(" %s", string);
+ return e;
}
+static int bb_ioctl_alt(int fd, int cmd, unsigned char *args, int alt, const char *string)
+{
+ if (!ioctl(fd, cmd, args))
+ return 0;
+ args[0] = alt;
+ return bb_ioctl(fd, cmd, args, string);
+}
+
+
static void if_printf(unsigned long i, char *fmt, ... )
{
va_list ap;
@@ -1454,7 +1465,7 @@ static void flush_buffer_cache (int fd)
#ifdef HDIO_DRIVE_CMD
sleep(1);
if (ioctl(fd, HDIO_DRIVE_CMD, NULL) && errno != EINVAL) /* await completion */
- bb_perror_msg("HDIO_DRIVE_CMD");
+ bb_perror_msg("HDIO_DRIVE_CMD");
#endif
}
@@ -2116,13 +2127,13 @@ static void process_dev (char *devname)
args[2] = wcache ? 0x02 : 0x82;
if_printf_on_off(get_wcache," setting drive write-caching to %ld", wcache);
#ifdef DO_FLUSHCACHE
- if (!wcache && ioctl(fd, HDIO_DRIVE_CMD, &flushcache))
- bb_perror_msg ("HDIO_DRIVE_CMD(flushcache)");
+ if (!wcache)
+ bb_ioctl(fd, HDIO_DRIVE_CMD, &flushcache, "HDIO_DRIVE_CMD(flushcache)");
#endif /* DO_FLUSHCACHE */
bb_ioctl(fd, HDIO_DRIVE_CMD, &args, "HDIO_DRIVE_CMD(setcache)");
#ifdef DO_FLUSHCACHE
- if (!wcache && ioctl(fd, HDIO_DRIVE_CMD, &flushcache))
- bb_perror_msg ("HDIO_DRIVE_CMD(flushcache)");
+ if (!wcache)
+ bb_ioctl(fd, HDIO_DRIVE_CMD, &flushcache, "HDIO_DRIVE_CMD(flushcache)");
#endif /* DO_FLUSHCACHE */
}
if (set_standbynow)
@@ -2133,13 +2144,10 @@ static void process_dev (char *devname)
#ifndef WIN_STANDBYNOW2
#define WIN_STANDBYNOW2 0x94
#endif
- static unsigned char args1[4] = {WIN_STANDBYNOW1,0,0,0};
- static unsigned char args2[4] = {WIN_STANDBYNOW2,0,0,0};
no_scsi();
if_printf(get_standbynow," issuing standby command\n");
- if (ioctl(fd, HDIO_DRIVE_CMD, &args1)
- && ioctl(fd, HDIO_DRIVE_CMD, &args2))
- bb_perror_msg("HDIO_DRIVE_CMD(standby)");
+ args[0] = WIN_STANDBYNOW1;
+ bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args, WIN_STANDBYNOW2, "HDIO_DRIVE_CMD(standby)");
}
if (set_sleepnow)
{
@@ -2149,13 +2157,10 @@ static void process_dev (char *devname)
#ifndef WIN_SLEEPNOW2
#define WIN_SLEEPNOW2 0x99
#endif
- static unsigned char args1[4] = {WIN_SLEEPNOW1,0,0,0};
- static unsigned char args2[4] = {WIN_SLEEPNOW2,0,0,0};
no_scsi();
if_printf(get_sleepnow," issuing sleep command\n");
- if (ioctl(fd, HDIO_DRIVE_CMD, &args1)
- && ioctl(fd, HDIO_DRIVE_CMD, &args2))
- bb_perror_msg("HDIO_DRIVE_CMD(sleep)");
+ args[0] = WIN_SLEEPNOW1;
+ bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args, WIN_SLEEPNOW2, "HDIO_DRIVE_CMD(sleep)");
}
if (set_seagate)
{
@@ -2207,9 +2212,7 @@ static void process_dev (char *devname)
if ((verbose && !is_scsi_hd && !is_xt_hd) || get_io32bit)
{
no_scsi_no_xt();
- if(ioctl(fd, HDIO_GET_32BIT, &parm))
- bb_perror_msg("HDIO_GET_32BIT");
- else
+ if(!bb_ioctl(fd, HDIO_GET_32BIT, &parm, "HDIO_GET_32BIT"))
{
printf(" IO_support =%3ld (", parm);
switch (parm)
@@ -2245,9 +2248,7 @@ static void process_dev (char *devname)
#ifdef CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA
if ((verbose && !is_scsi_hd) || get_dma) {
no_scsi();
- if(ioctl(fd, HDIO_GET_DMA, &parm))
- bb_perror_msg("HDIO_GET_DMA");
- else
+ if(!bb_ioctl(fd, HDIO_GET_DMA, &parm, "HDIO_GET_DMA"))
{
printf(" using_dma = %2ld", parm);
if (parm == 8)
@@ -2294,16 +2295,16 @@ static void process_dev (char *devname)
static struct hd_big_geometry bg;
#endif
- if (ioctl(fd, BLKGETSIZE, &parm))
- bb_perror_msg("BLKGETSIZE");
+ if (!bb_ioctl(fd, BLKGETSIZE, &parm, "BLKGETSIZE"))
+ {
#ifdef HDIO_GETGEO_BIG
- else if (!ioctl(fd, HDIO_GETGEO_BIG, &bg))
- printf(msg, bg.cylinders, bg.heads, bg.sectors, parm, bg.start);
+ if (!bb_ioctl(fd, HDIO_GETGEO_BIG, &bg, "HDIO_GETGEO_BIG"))
+ printf(msg, bg.cylinders, bg.heads, bg.sectors, parm, bg.start);
+ else
#endif
- else if (ioctl(fd, HDIO_GETGEO, &g))
- bb_perror_msg("HDIO_GETGEO");
- else
- printf(msg, g.cylinders, g.heads, g.sectors, parm, g.start);
+ if (!bb_ioctl(fd, HDIO_GETGEO, &g, "HDIO_GETGEO"))
+ printf(msg, g.cylinders, g.heads, g.sectors, parm, g.start);
+ }
}
#ifdef HDIO_DRIVE_CMD
if (get_powermode)
@@ -2315,11 +2316,10 @@ static void process_dev (char *devname)
#define WIN_CHECKPOWERMODE2 0x98
#endif
const char *state;
+
no_scsi();
args[0] = WIN_CHECKPOWERMODE1;
- if (ioctl(fd, HDIO_DRIVE_CMD, &args)
- && (args[0] = WIN_CHECKPOWERMODE2) /* try again with 0x98 */
- && ioctl(fd, HDIO_DRIVE_CMD, &args))
+ if (bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args, WIN_CHECKPOWERMODE2, 0))
{
if (errno != EIO || args[0] != 0 || args[1] != 0)
state = "unknown";
@@ -2374,23 +2374,19 @@ static void process_dev (char *devname)
if (get_IDentity)
{
- unsigned char args1[4+512] = {WIN_IDENTIFY,0,0,1,};
+ unsigned char args1[4+512]; /* = { ... } will eat 0.5k of rodata! */
unsigned i;
no_scsi_no_xt();
- if (ioctl(fd, HDIO_DRIVE_CMD, &args1))
- {
- args[0] = WIN_PIDENTIFY;
- if (ioctl(fd, HDIO_DRIVE_CMD, &args1))
- {
- bb_perror_msg("HDIO_DRIVE_CMD(identify)");
- goto identify_abort;
- }
- }
+ memset(args1, 0, sizeof(args1));
+ args1[0] = WIN_IDENTIFY;
+ args1[3] = 1;
+ if (bb_ioctl_alt(fd, HDIO_DRIVE_CMD, args1, WIN_PIDENTIFY, "HDIO_DRIVE_CMD(identify)"))
+ goto identify_abort;
+
for(i=0; i<(sizeof args1)/2; i+=2)
__le16_to_cpus((uint16_t *)(&args1[i]));
-
identify((void *)&args1[4], NULL);
identify_abort:
/* VOID */;
@@ -2412,9 +2408,7 @@ identify_abort:
if (get_busstate)
{
no_scsi();
- if (ioctl(fd, HDIO_GET_BUSSTATE, &parm))
- bb_perror_msg("HDIO_GET_BUSSTATE");
- else
+ if (!bb_ioctl(fd, HDIO_GET_BUSSTATE, &parm, "HDIO_GET_BUSSTATE"))
{
printf(" busstate = %2ld", parm);
bus_state_value(parm);