View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000505 | file | General | public | 2024-02-23 10:40 | 2024-04-08 16:06 |
| Reporter | monperrus | Assigned To | christos | ||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | feedback | Resolution | open | ||
| Summary | 0000505: support of multi-part zip archives | ||||
| Description | zipsplit creates multi-part zip archives, file can only recognize some files from it. | ||||
| Steps To Reproduce | to create the split file: zip -s 3 foo.zip bigfile.dat Then: file foo.z* Actual behavior: foo.z01: Zip multi-volume archive data, at least PKZIP v2.50 to extract foo.z02: data foo.z03: data foo.zip: data Expected behavior: foo.z01: Zip multi-volume archive data, at least PKZIP v2.50 to extract foo.z02: Zip multi-volume archive data, at least PKZIP v2.50 to extract foo.z03: Zip multi-volume archive data, at least PKZIP v2.50 to extract foo.zip: Zip multi-volume archive data, at least PKZIP v2.50 to extract | ||||
| Tags | No tags attached. | ||||
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As far as I know, it's essentially impossible to identify ZIP fragments that are neither first nor last. I couldn't reproduce your results for the last fragment. (And it might be possible to identify it as the last fragment, instead of just as generic Zip data.) $ zip -s 3 foo.zip bigfile.dat $ file foo.z* foo.z01: Zip multi-volume archive data, at least PKZIP v2.50 to extract foo.z02: data foo.z03: data foo.zip: Zip archive data, made by v3.0 UNIX, extract using at least v2.0, last modified, last modified Sun, Mar 01 2024 08:43:12, uncompressed size 10518450, method=deflate $ file --version file-5.45 |
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I confirm I can also identify the last fragment. > As far as I know, it's essentially impossible to identify ZIP fragments that are neither first nor last. argh, too bad. thanks a lot, we can close then. |
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I am not sure if it is possible, since the file parts have no identifying magic... |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2024-02-23 10:40 | monperrus | New Issue | |
| 2024-03-01 13:54 | jsummers | Note Added: 0004017 | |
| 2024-03-04 18:39 | monperrus | Note Added: 0004022 | |
| 2024-04-08 16:06 | christos | Assigned To | => christos |
| 2024-04-08 16:06 | christos | Status | new => assigned |
| 2024-04-08 16:06 | christos | Status | assigned => feedback |
| 2024-04-08 16:06 | christos | Note Added: 0004032 |
