[git commit] unzip: shorter code for date/time generation
Denys Vlasenko
vda.linux at googlemail.com
Mon Apr 18 00:38:32 UTC 2016
commit: https://git.busybox.net/busybox/commit/?id=5598bdf0d3d46a865a4d23785e2d09e6db9be420
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master
function old new delta
unzip_main 2426 2414 -12
Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
archival/unzip.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/archival/unzip.c b/archival/unzip.c
index a7532e0..be32e60 100644
--- a/archival/unzip.c
+++ b/archival/unzip.c
@@ -642,14 +642,14 @@ int unzip_main(int argc, char **argv)
} else {
if (listing) {
/* List entry */
- unsigned dostime = zip_header.formatted.modtime | (zip_header.formatted.moddate << 16);
char dtbuf[sizeof("mm-dd-yyyy hh:mm")];
sprintf(dtbuf, "%02u-%02u-%04u %02u:%02u",
- (dostime & 0x01e00000) >> 21,
- (dostime & 0x001f0000) >> 16,
- ((dostime & 0xfe000000) >> 25) + 1980,
- (dostime & 0x0000f800) >> 11,
- (dostime & 0x000007e0) >> 5
+ (zip_header.formatted.moddate >> 5) & 0xf, // mm: 0x01e0
+ (zip_header.formatted.moddate) & 0x1f, // dd: 0x001f
+ (zip_header.formatted.moddate >> 9) + 1980, // yy: 0xfe00
+ (zip_header.formatted.modtime >> 11), // hh: 0xf800
+ (zip_header.formatted.modtime >> 5) & 0x3f // mm: 0x07e0
+ // seconds/2 are not shown, encoded in ----------- 0x001f
);
if (!verbose) {
// " Length Date Time Name\n"
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