df: implement -B n<suff> and -B <suff> formats of -B option

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2016-12-12 19:56:31 +01:00
parent 76de3257f7
commit e184a88356
4 changed files with 41 additions and 24 deletions

View File

@@ -129,8 +129,19 @@ int df_main(int argc UNUSED_PARAM, char **argv)
if (opt & OPT_MEGA)
df_disp_hr = 1024*1024;
if (opt & OPT_BSIZE)
df_disp_hr = xatoul_range(chp, 1, ULONG_MAX); /* disallow 0 */
if (opt & OPT_BSIZE) {
/* GNU coreutils 8.25 accepts "-BMiB" form too */
int i;
for (i = 0; kmg_i_suffixes[i].suffix[0]; i++) {
if (strcmp(kmg_i_suffixes[i].suffix, chp) == 0) {
df_disp_hr = kmg_i_suffixes[i].mult;
goto got_it;
}
}
/* Range used to disallow 0 */
df_disp_hr = xatoul_range_sfx(chp, 1, ULONG_MAX, kmg_i_suffixes);
got_it: ;
}
/* From the manpage of df from coreutils-6.10:
* Disk space is shown in 1K blocks by default, unless the environment
@@ -203,6 +214,11 @@ int df_main(int argc UNUSED_PARAM, char **argv)
bb_simple_perror_msg(mount_point);
goto set_error;
}
/* Some uclibc versions were seen to lose f_frsize
* (kernel does return it, but then uclibc does not copy it)
*/
if (s.f_frsize == 0)
s.f_frsize = s.f_bsize;
if ((s.f_blocks > 0) || !mount_table || (opt & OPT_ALL)) {
if (opt & OPT_INODE) {