RGBCube/uutils-coreutils
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dd: add support for 'b' and 'x' multipliers

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Support the suffix 'b' (multiply by 512) and 'x' (multiply by an
arbitrary amount) when specifying numeric arguments to dd.
This commit is contained in:
Jeffrey Finkelstein 2022-02-01 22:53:19 -05:00
parent e60b581c38
commit 3fbaa79359
2 changed files with 128 additions and 18 deletions
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22
tests/by-util/test_dd.rs
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@ -1,4 +1,4 @@
// spell-checker:ignore fname, tname, fpath, specfile, testfile, unspec, ifile, ofile, outfile, fullblock, urand, fileio, atoe, atoibm, availible, behaviour, bmax, bremain, btotal, cflags, creat, ctable, ctty, datastructures, doesnt, etoa, fileout, fname, gnudd, iconvflags, nocache, noctty, noerror, nofollow, nolinks, nonblock, oconvflags, outfile, parseargs, rlen, rmax, rposition, rremain, rsofar, rstat, sigusr, sigval, wlen, wstat abcdefghijklm
// spell-checker:ignore fname, tname, fpath, specfile, testfile, unspec, ifile, ofile, outfile, fullblock, urand, fileio, atoe, atoibm, availible, behaviour, bmax, bremain, btotal, cflags, creat, ctable, ctty, datastructures, doesnt, etoa, fileout, fname, gnudd, iconvflags, nocache, noctty, noerror, nofollow, nolinks, nonblock, oconvflags, outfile, parseargs, rlen, rmax, rposition, rremain, rsofar, rstat, sigusr, sigval, wlen, wstat abcdefghijklm abcdefghi
use crate::common::util::*;
@ -178,6 +178,26 @@ fn test_stdin_stdout_count_w_multiplier() {
.success();
}
#[test]
fn test_b_multiplier() {
// "2b" means 2 * 512, which is 1024.
new_ucmd!()
.args(&["bs=2b", "count=1"])
.pipe_in("a".repeat(1025))
.succeeds()
.stdout_is("a".repeat(1024));
}
#[test]
fn test_x_multiplier() {
// "2x3" means 2 * 3, which is 6.
new_ucmd!()
.args(&["bs=2x3", "count=1"])
.pipe_in("abcdefghi")
.succeeds()
.stdout_is("abcdef");
}
#[test]
fn test_final_stats_noxfer() {
new_ucmd!()