tree 8823cd1ccb89ac0225f3e6b0122eb6c337e1230e
parent a9edc4805b5e73885eb3ca1e9fe905e7321c226a
author Gilles Peskine <Gilles.Peskine@arm.com> 1508175186 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> 1513792432 +0100

mbedtls_timing_get_timer: don't use uninitialized memory

mbedtls_timing_get_timer with reset=1 is called both to initialize a
timer object and to reset an already-initialized object. In an
initial call, the content of the data structure is indeterminate, so
the code should not read from it. This could crash if signed overflows
trap, for example.

As a consequence, on reset, we can't return the previously elapsed
time as was previously done on Windows. Return 0 as was done on Unix.