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77e522caae
Calls to `chdir()` are dangerous in a multi-threaded context. If `unix_stream_listen()` or `unix_stream_connect()` is given a socket pathname that is too long to fit in a `sockaddr_un` structure, it will `chdir()` to the parent directory of the requested socket pathname, create the socket using a relative pathname, and then `chdir()` back. This is not thread-safe. Teach `unix_sockaddr_init()` to not allow calls to `chdir()` when this flag is set. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
16 lines
370 B
C
16 lines
370 B
C
#ifndef UNIX_SOCKET_H
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#define UNIX_SOCKET_H
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struct unix_stream_listen_opts {
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int listen_backlog_size;
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unsigned int disallow_chdir:1;
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};
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#define UNIX_STREAM_LISTEN_OPTS_INIT { 0 }
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int unix_stream_connect(const char *path, int disallow_chdir);
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int unix_stream_listen(const char *path,
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const struct unix_stream_listen_opts *opts);
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#endif /* UNIX_SOCKET_H */
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