Tom Lane 46ab07ffda Clean up assorted failures under clang's -fsanitize=undefined checks. ... Most of these are cases where we could call memcpy() or other libc functions with a NULL pointer and a zero count, which is forbidden by POSIX even though every production version of libc allows it. We've fixed such things before in a piecemeal way, but apparently never made an effort to try to get them all. I don't claim that this patch does so either, but it gets every failure I observe in check-world, using clang 12.0.1 on current RHEL8. numeric.c has a different issue that the sanitizer doesn't like: "ln(-1.0)" will compute log10(0) and then try to assign the resulting -Inf to an integer variable. We don't actually use the result in such a case, so there's no live bug. Back-patch to all supported branches, with the idea that we might start running a buildfarm member that tests this case. This includes back-patching c1132aae3 (Check the size in COPY_POINTER_FIELD), which previously silenced some of these issues in copyfuncs.c. Discussion: https://postgr.es/m/CALNJ-vT9r0DSsAOw9OXVJFxLENoVS_68kJ5x0p44atoYH+H4dg@mail.gmail.com		2022-03-03 18:13:24 -05:00
..
expected	pgcrypto: Remove explicit hex encoding/decoding from tests	2021-12-08 06:06:22 +01:00
sql	pgcrypto: Remove explicit hex encoding/decoding from tests	2021-12-08 06:06:22 +01:00
.gitignore
crypt-blowfish.c
crypt-des.c
crypt-gensalt.c
crypt-md5.c
Makefile	pgcrypto: Remove non-OpenSSL support	2021-11-05 14:06:59 +01:00
mbuf.c
mbuf.h
openssl.c
pgcrypto--1.0--1.1.sql
pgcrypto--1.1--1.2.sql
pgcrypto--1.2--1.3.sql
pgcrypto--1.3.sql
pgcrypto.c
pgcrypto.control
pgcrypto.h
pgp-armor.c
pgp-cfb.c
pgp-compress.c
pgp-decrypt.c
pgp-encrypt.c
pgp-info.c
pgp-mpi-openssl.c
pgp-mpi.c
pgp-pgsql.c
pgp-pubdec.c
pgp-pubenc.c
pgp-pubkey.c
pgp-s2k.c
pgp.c
pgp.h
px-crypt.c
px-crypt.h
px-hmac.c
px.c	Clean up assorted failures under clang's -fsanitize=undefined checks.	2022-03-03 18:13:24 -05:00
px.h	pgcrypto: Remove unused error code	2022-02-21 10:55:03 +01:00