Bug ID: 11382
           Summary: elapsed time calculation does not account for time
                    function possibly returning -1
           Product: rsync
           Version: 3.1.1
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: core
        QA Contact:

starttime currently initialized on line 1529 of main.c and endtime currently
initialized on line 222 of main.c, both of which are used on line 344 are used
in a manner that does not handle that time(NULL) can return -1.

Out of curiosity, I did try reading through the glibc source code for that
function to find it currently does return -1, and at the glibc level, that's
all that the time function does unless appropriate bridging to a kernel is
implemented. I did not take the time to try looking at other libc
implementations or to see under what conditions the linux kernel might return

As I only see one usage on line 344, if one of those two values comes back as
-1 for some reason, perhaps that information line should be ommitted or
replaced since the statistic trying to be printed would not be a valid
statistic if one of the two time() calls returned -1.

Glibc documents the -1 possibility at
Microsoft documents the -1 possibility for their libc implementations as well

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