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