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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2021-06-15 10:39:33 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2021-06-15 10:39:33 +0200 |
| commit | e47000490c30109db1d571bcab12f385cd0139e5 (patch) | |
| tree | a2cd5ab7bdc26920a8f2b20ae7d8e57c7aa8bf3c /coreutils/shred.c | |
| parent | 1f60d88cf6f5ad3efcad6e7ef1501ce334046e40 (diff) | |
| download | busybox-e47000490c30109db1d571bcab12f385cd0139e5.tar.gz | |
shuf: simplify check that we have at least one FILE
function old new delta
.rodata 103190 103194 +4
packed_usage 33541 33537 -4
shred_main 354 337 -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 4/-21) Total: -17 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'coreutils/shred.c')
| -rw-r--r-- | coreutils/shred.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/coreutils/shred.c b/coreutils/shred.c index 8f3d9c5c9..69fb3e8cc 100644 --- a/coreutils/shred.c +++ b/coreutils/shred.c @@ -15,7 +15,7 @@ //kbuild:lib-$(CONFIG_SHRED) += shred.o //usage:#define shred_trivial_usage -//usage: "FILE..." +//usage: "[-fuz] [-n N] FILE..." //usage:#define shred_full_usage "\n\n" //usage: "Overwrite/delete FILEs\n" //usage: "\n -f Chmod to ensure writability" @@ -54,16 +54,13 @@ int shred_main(int argc UNUSED_PARAM, char **argv) OPT_x = (1 << 5), }; - opt = getopt32(argv, "fuzn:+vx", &num_iter); + opt = getopt32(argv, "^" "fuzn:+vx" "\0" "-1"/*min 1 arg*/, &num_iter); argv += optind; zero_fd = xopen("/dev/zero", O_RDONLY); if (num_iter != 0) rand_fd = xopen("/dev/urandom", O_RDONLY); - if (!*argv) - bb_show_usage(); - for (;;) { struct stat sb; const char *fname; |