Commit Graph

4 Commits

Author SHA1 Message Date
Todd C. Miller
0614c1f626 check_pattern: check bounds as a repetition operator too.
Add regess to verify check_pattern() via sudo_regex_compile().
2022-12-17 15:09:30 -07:00
Todd C. Miller
f0530b66d3 Instead of collapsing duplicate repetition characters, reject them.
This is implementation-specific behavior--some regcomp(3) will
reject duplicate repetition characters (BSD), others will try to
support them (Glibc) but may allocate excessive amounts of memory.
2022-12-17 11:32:24 -07:00
Todd C. Miller
33f54c853b Limit regular expressions to 1024 characters each.
Avoids a problem with the fuzzer creating large regular expressions
that blow up the glibc regcomp().
2022-02-12 09:33:02 -07:00
Todd C. Miller
7c17f84a35 Add helper function to compile a regex that supports (?i). 2022-02-11 12:01:31 -07:00