Lennart Poettering
0a233ba179
Let's optionally translate BSD exit codes to error strings too. My first approach on adding this was to turn ExitStatusLevel into a bitmask rather than a linear level, with one bit for the various feature bits. However, the exit code ranges are generally not defined independently from each other, i.e. our own ones are defined with the LSB ones in mind, and most sets are defined with the ISO C ones. Hence, instead I changed the existing hierarchy of MINIMAL, SYSTEMD, LSB with an alias of FULL == LSB, only slightly by seperating FULL and LSB into two separate levels, so that there's now: 1. MINIMAL (only EXIT_SUCCESS/EXIT_FAILURE) 2. SYSTEMD (incorporating our own exit codes) 3. LSB (like SYSTEMD but adding in LSB service exit codes) 4. FULL (like FULL but adding BSD exit codes) Note that across the codebase only FULL, SYSTEMD, and MINIMAL are used, depending on context, how much we know about the process and whether we are logging for debugging purposes or not. This means the LSB level wouldn't really have to be separate, but it appeared careless to me to fold it into FULL along with the BSD exit codes. Note that this commit doesn't change much for regular codepaths: the FULL exit status level is only used during debug logging, as a helper to the user reading the debug logs.
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