tarfile._Stream.seek ignores EOF

[encukou]

Bug report

The forward-seek routine of tarfile._Stream reads a given number of blocks, even if it hits an end of file. A large seek can lead to a long no-op loop.

Linked PRs

• gh-151981: Make tarfile._Stream.seek break at EOF #151982
• [3.15] gh-151981: Make tarfile._Stream.seek break at EOF (GH-151982) #151991
• [3.14] gh-151981: Make tarfile._Stream.seek break at EOF (GH-151982) #151992
• [3.13] gh-151981: Make tarfile._Stream.seek break at EOF (GH-151982) #151993
• [3.12] gh-151981: Make tarfile._Stream.seek break at EOF (GH-151982) #151994
• [3.11] gh-151981: Make tarfile._Stream.seek break at EOF (GH-151982) #151995
• [3.10] gh-151981: Make tarfile._Stream.seek break at EOF (GH-151982) #151996