[cups-devel] [MOD] STR #4726: If filter or backend errors, in the error_log entry exit status and error message do not correspond

[Michael Sweet]

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[STR Resolved]

Till, exit status 100 - 255 are treated as POSIX errno values 0 to 155 -
this mapping is done in cups-exec in order to provide some reporting of its
errors (which are limited since we can't safely call strerror or fprintf
after a fork) while hopefully avoiding filter/backend exit codes (typically
0-6).

So this is working exactly as designed, except that Linux is not returning
an error from the exec system call preventing cups-exec from correctly
reporting the error.

Not sure what to do here since errno 127 is NOT POSIX...

Link: https://www.cups.org/str.php?L4726
Version: 2.0.2
Fix Version: None
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