extern int df_main(int argc, char **argv)
{
long blocks_used;
long blocks_percent_used;
#ifdef CONFIG_FEATURE_HUMAN_READABLE
unsigned long df_disp_hr = KILOBYTE;
#endif
int status = EXIT_SUCCESS;
unsigned long opt;
FILE *mount_table;
struct mntent *mount_entry;
struct statfs s;
static const char hdr_1k[] = "1k-blocks"; /* default display is kilobytes */
const char *disp_units_hdr = hdr_1k;
char df_entry[200] = {0}; // Added by Nick Wang, 01/05/2005
int entry_len = 0; // Added by Nick Wang, 01/05/2005
printf("busybox df_main: start\n");
#ifdef CONFIG_FEATURE_HUMAN_READABLE
bb_opt_complementaly = "h-km:k-hm:m-hk";
opt = bb_getopt_ulflags(argc, argv, "hmk");
if(opt & 1) {
df_disp_hr = 0;
disp_units_hdr = " Size";
}
if(opt & 2) {
df_disp_hr = MEGABYTE;
disp_units_hdr = "1M-blocks";
}
#else
opt = bb_getopt_ulflags(argc, argv, "k");
#endif
bb_printf("Filesystem%11s%-15sUsed Available Use%% Mounted on\n",
"", disp_units_hdr);
mount_table = NULL;
argv += optind;
if (optind >= argc) {
if (!(mount_table = setmntent(bb_path_mtab_file, "r"))) {
bb_perror_msg_and_die(bb_path_mtab_file);
}
}
do {
const char *device;
const char *mount_point;
if (mount_table) {
if (!(mount_entry = getmntent(mount_table))) {
endmntent(mount_table);
break;
}
} else {
if (!(mount_point = *argv++)) {
break;
}
if (!(mount_entry = find_mount_point(mount_point, bb_path_mtab_file))) {
bb_error_msg("%s: can't find mount point.", mount_point);
SET_ERROR:
status = EXIT_FAILURE;
continue;
}
}
device = mount_entry->mnt_fsname;
mount_point = mount_entry->mnt_dir;
if (statfs(mount_point, &s) != 0) {
bb_perror_msg("%s", mount_point);
goto SET_ERROR;
}
if ((s.f_blocks > 0) || !mount_table){
blocks_used = s.f_blocks - s.f_bfree;
blocks_percent_used = 0;
if (blocks_used + s.f_bavail) {
blocks_percent_used = (((long long) blocks_used) * 100
+ (blocks_used + s.f_bavail)/2
) / (blocks_used + s.f_bavail);
}
if (strcmp(device, "rootfs") == 0) {
continue;
} else if (strcmp(device, "/dev/root") == 0) {
/* Adjusts device to be the real root device,
* or leaves device alone if it can't find it */
if ((device = find_real_root_device_name(device)) == NULL) {
goto SET_ERROR;
}
}
#ifdef CONFIG_FEATURE_HUMAN_READABLE
bb_printf("%-21s%9s ", device,
make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr));
sprintf(df_entry, "%-21s%9s ", device, make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr));
entry_len = strlen(df_entry);
bb_printf("%9s ",
make_human_readable_str( (s.f_blocks - s.f_bfree),
s.f_bsize, df_disp_hr));
sprintf(df_entry + entry_len, "%9s ", make_human_readable_str( (s.f_blocks - s.f_bfree), s.f_bsize, df_disp_hr));
entry_len = strlen(df_entry);
bb_printf("%9s %3ld%% %s\n",
make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr),
blocks_percent_used, mount_point);
sprintf(df_entry + entry_len, "%9s %3ld%% %s\n", make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr), blocks_percent_used, mount_point);
entry_len = strlen(df_entry);
// output df table to file, Added By Nick Wang, 01/05/02005
{
FILE *fp;
if ((fp = fopen("/var/.sys-df", "a")) != NULL)
fprintf(fp, "%s\n", df_entry);
(void) fclose(fp);
}
// Added End
#else
bb_printf("%-21s%9ld %9ld %9ld %3ld%% %s\n",
device,
kscale(s.f_blocks, s.f_bsize),
kscale(s.f_blocks-s.f_bfree, s.f_bsize),
kscale(s.f_bavail, s.f_bsize),
blocks_percent_used, mount_point);
#endif
}
} while (1);
bb_fflush_stdout_and_exit(status);
}
static void show_mounts(char *onlytype)
{
#if defined BB_FEATURE_USE_DEVPS_PATCH
int fd, i, numfilesystems;
char device[] = "/dev/mtab";
struct k_mntent *mntentlist;
/* open device */
fd = open(device, O_RDONLY);
if (fd < 0)
perror_msg_and_die("open failed for `%s'", device);
/* How many mounted filesystems? We need to know to
* allocate enough space for later... */
numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS);
if (numfilesystems<0)
perror_msg_and_die( "\nDEVMTAB_COUNT_MOUNTS");
mntentlist = (struct k_mntent *) xcalloc ( numfilesystems, sizeof(struct k_mntent));
/* Grab the list of mounted filesystems */
if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0)
perror_msg_and_die( "\nDEVMTAB_GET_MOUNTS");
for( i = 0 ; i < numfilesystems ; i++) {
if ( !onlytype || ( strcmp ( mntentlist[i].mnt_type, onlytype ) == 0 )) {
printf( "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname,
mntentlist[i].mnt_dir, mntentlist[i].mnt_type,
mntentlist[i].mnt_opts, mntentlist[i].mnt_freq,
mntentlist[i].mnt_passno);
}
}
#ifdef BB_FEATURE_CLEAN_UP
/* Don't bother to close files or free memory. Exit
* does that automagically, so we can save a few bytes */
free( mntentlist);
close(fd);
#endif
exit(EXIT_SUCCESS);
#else
FILE *mountTable = setmntent(mtab_file, "r");
if (mountTable) {
struct mntent *m;
while ((m = getmntent(mountTable)) != 0) {
char *blockDevice = m->mnt_fsname;
if (strcmp(blockDevice, "/dev/root") == 0) {
blockDevice = find_real_root_device_name(blockDevice);
}
if ( !onlytype || ( strcmp ( m-> mnt_type, onlytype ) == 0 )) {
printf("%s on %s type %s (%s)\n", blockDevice, m->mnt_dir,
m->mnt_type, m->mnt_opts);
}
#ifdef BB_FEATURE_CLEAN_UP
if(blockDevice != m->mnt_fsname)
free(blockDevice);
#endif
}
endmntent(mountTable);
} else {
perror_msg_and_die("%s", mtab_file);
}
exit(EXIT_SUCCESS);
#endif
}
