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cpio: improve help text; document two TODOs

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-01-09 19:56:15 +01:00
parent dc698bb038
commit 93ac7d8468
4 changed files with 19 additions and 6 deletions
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8
archival/cpio.c
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@@ -304,8 +304,12 @@ int cpio_main(int argc UNUSED_PARAM, char **argv)
/* -L makes sense only with -o or -p */
#if !ENABLE_FEATURE_CPIO_O
/* no parameters */
opt_complementary = "=0";
opt = getopt32(argv, OPTION_STR, &cpio_filename);
#else
/* _exactly_ one parameter for -p, thus <= 1 param if -p is allowed */
opt_complementary = ENABLE_FEATURE_CPIO_P ? "?1" : "=0";
opt = getopt32(argv, OPTION_STR "oH:" IF_FEATURE_CPIO_P("p"), &cpio_filename, &cpio_fmt);
argv += optind;
if (opt & CPIO_OPT_PASSTHROUGH) {
@@ -346,13 +350,13 @@ int cpio_main(int argc UNUSED_PARAM, char **argv)
xchdir(*argv++);
close(pp.wr);
xmove_fd(pp.rd, STDIN_FILENO);
opt &= ~CPIO_OPT_PASSTHROUGH;
//opt &= ~CPIO_OPT_PASSTHROUGH;
opt |= CPIO_OPT_EXTRACT;
goto skip;
}
/* -o */
if (opt & CPIO_OPT_CREATE) {
if (*cpio_fmt != 'n') /* we _require_ "-H newc" */
if (cpio_fmt[0] != 'n') /* we _require_ "-H newc" */
bb_show_usage();
if (opt & CPIO_OPT_FILE) {
xmove_fd(xopen3(cpio_filename, O_WRONLY | O_CREAT | O_TRUNC, 0666), STDOUT_FILENO);