unzip: document some options we might support

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/archival/unzip.c b/archival/unzip.c
index 691a2d81b..71a302915 100644
--- a/archival/unzip.c
+++ b/archival/unzip.c
@@ -559,6 +559,11 @@ int unzip_main(int argc, char **argv)
  *    204372                   1 file
  */
 
+//TODO: accept and ignore these?
+// -a   convert to text files with 't' label, -aa: all files
+// -b   do not convert to text - bbox: we don't convert anything
+// -D   skip restoration of timestamps for extracted items - bbox: we don't restore these (yet?)
+// -X   restore user:group ownership
         opts = 0;
         /* '-' makes getopt return 1 for non-options */
         while ((i = getopt(argc, argv, "-d:lnotpqxjvK")) != -1) {
@@ -583,6 +588,7 @@ int unzip_main(int argc, char **argv)
                         xmove_fd(xopen("/dev/null", O_WRONLY), STDOUT_FILENO);
                         /*fallthrough*/
 
+// NB: -c extract files to stdout/screen (unlike -p, also prints .zip and file names to stdout)
                 case 'p': /* Extract files to stdout */
                         dst_fd = STDOUT_FILENO;
                         /*fallthrough*/
@@ -853,6 +859,7 @@ int unzip_main(int argc, char **argv)
                 unzip_skip(zip.fmt.extra_len);
 
                 /* Guard against "/abspath", "/../" and similar attacks */
+// NB: UnZip 6.00 has option -: to disable this
                 overlapping_strcpy(dst_fn, strip_unsafe_prefix(dst_fn));
 
                 /* Filter zip entries */