tests/core/strtol.c


Log

Author Commit Date CI Message
Patrick Steinhardt ea19efc1 2018-10-18T15:08:56 util: fix out of bounds read in error message When an integer that is parsed with `git__strntol32` is too big to fit into an int32, we will generate an error message that includes the actual string that failed to parse. This does not acknowledge the fact that the string may either not be NUL terminated or alternative include additional characters after the number that is to be parsed. We may thus end up printing characters into the buffer that aren't the number or, worse, read out of bounds. Fix the issue by utilizing the `endptr` that was set by `git__strntol64`. This pointer is guaranteed to be set to the first character following the number, and we can thus use it to compute the width of the number that shall be printed. Create a test to verify that we correctly truncate the number.
Patrick Steinhardt 39087ab8 2018-10-18T12:11:33 tests: core::strtol: test for some more edge-cases Some edge cases were currently completely untested, e.g. parsing numbers greater than INT64_{MIN,MAX}, truncating buffers by length and invalid characters. Add tests to verify that the system under test performs as expected.
Patrick Steinhardt 8d7fa88a 2018-10-18T12:04:07 util: remove `git__strtol32` The function `git__strtol32` can easily be misused when untrusted data is passed to it that may not have been sanitized with trailing `NUL` bytes. As all usages of this function have now been removed, we can remove this function altogether to avoid future misuse of it.
Patrick Steinhardt 68deb2cc 2018-10-18T11:37:10 util: remove unsafe `git__strtol64` function The function `git__strtol64` does not take a maximum buffer length as parameter. This has led to some unsafe usages of this function, and as such we may consider it as being unsafe to use. As we have now eradicated all usages of this function, let's remove it completely to avoid future misuse.
Krishna Ram Prakash R 70b9b841 2016-06-28T20:19:52 Fixed bug while parsing INT64_MIN
Ben Straub 17820381 2013-11-14T14:05:52 Rename tests-clar to tests