src/usr.bin/diff/xmalloc.c, branch release/13.1.0 FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=release%2F13.1.0 2020-01-14T08:18:04Z asprintf returns -1, not an arbitrary value < 0. Also upon error the 2020-01-14T08:18:04Z Baptiste Daroussin bapt@FreeBSD.org 2020-01-14T08:18:04Z urn:sha1:f9eac425775a4e173bff0b63423fd3f503db6131 (very sloppy specification) leaves an undefined value in *ret, so it is wrong to inspect it, the error condition is enough. Obtained from: OpenBSD MFC after: 3 days Import diff from OpenBSD and remove GNU diff 2017-03-11T05:01:29Z Baptiste Daroussin bapt@FreeBSD.org 2017-03-11T05:01:29Z urn:sha1:3bbe3f672e37e4f609adb3be3a6476edce2243ec Some of the modifications from the previous summer of code has been integrated Modification for compatibility with GNU diff output has been added Main difference with OpenBSD: Implement multiple GNU diff options: * --ignore-file-name-case * --no-ignore-file-name-case * --normal * --tabsize * --strip-trailing-cr Make diff -p compatible with GNU diff Implement diff -l Make diff -r compatible with GNU diff Capsicumize diffing 2 regular files Add a simple test suite Approved by: AsiaBSDcon devsummit Obtained from: OpenBSD, GSoC Relnotes: yes