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authorDaniel Mack <github@zonque.org>2016-07-07 06:30:34 +0200
committerEvgeny Vereshchagin <evvers@ya.ru>2016-07-07 07:30:34 +0300
commit79c954405fd77e36c5567767676b81b79ed80ed5 (patch)
tree88f2ae21e6027c21912d1b4fc29b0e7ab870615d /src/core
parent4d89618a4eb048704b37fec37eaa7b4cef66e6e9 (diff)
basic: log: Increase static buffer for source file location (#3674)
Commit d054f0a4 ("tree-wide: use xsprintf() where applicable") used a semantic patch approach to change a number of locations from snprintf(buf, sizeof(buf), FMT, ...) to xsprintf(buf, FMT, ...) The problem is that xsprintf() wraps the snprintf() in an assert_message_se(), so if snprintf() reports an overflow of the destination buffer, the binary will now terminate. This hit a user running a version of systemd that was built from a deeply nested system path. Fix this by a) Switching back to snprintf() for this particular case. We should really rather truncate the location string than crash in such situations. b) Increasing the size of that static string buffer, to make the event more unlikely.
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