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88e03d055d
intoasc(), a wrapper for PGTYPESinterval_to_asc that converts an interval to its textual representation, used a plain memcpy() when copying its result. This could miss a zero-termination in the result string, leading to an incorrect result. The routines in informix.c do not provide the length of their result buffer, which would allow a replacement of strcpy() to safer strlcpy() calls, but this requires an ABI breakage and that cannot happen in back-branches. Author: Oleg Tselebrovskiy Reviewed-by: Ashutosh Bapat Discussion: https://postgr.es/m/bf47888585149f83b276861a1662f7e4@postgrespro.ru Backpatch-through: 12