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Tom Lane 1a027e6b7b 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		4 years ago
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expected	Add alternative output for OpenSSL 3 without legacy loaded	4 years ago
sql	Fix corner case with 16kB-long decompression in pgcrypto, take 2	5 years ago
.gitignore	Support SCRAM-SHA-256 authentication (RFC 5802 and 7677).	9 years ago
Makefile	Remove support for upgrading extensions from "unpackaged" state.	6 years ago
blf.c	…
blf.h	…
crypt-blowfish.c	Get rid of trailing semicolons in C macro definitions.	5 years ago
crypt-des.c	Fix many typos and inconsistencies	6 years ago
crypt-gensalt.c	Phase 3 of pgindent updates.	8 years ago
crypt-md5.c	Add missing error check in pgcrypto/crypt-md5.c.	5 years ago
imath.c	Update copyrights for 2020	6 years ago
imath.h	Initial pgindent run for v12.	6 years ago
internal-sha2.c	Refactor SHA2 functions and move them to src/common/.	9 years ago
internal.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
mbuf.c	Remove useless "return;" lines	6 years ago
mbuf.h	Phase 2 pgindent run for v12.	6 years ago
md5.c	Resolve one unconstify use	7 years ago
md5.h	Phase 2 of pgindent updates.	8 years ago
openssl.c	Disable OpenSSL EVP digest padding in pgcrypto	4 years ago
pgcrypto--1.0--1.1.sql	…
pgcrypto--1.1--1.2.sql	…
pgcrypto--1.2--1.3.sql	Update pgcrypto extension for parallel query.	9 years ago
pgcrypto--1.3.sql	Minor fixes in contrib installation scripts.	9 years ago
pgcrypto.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgcrypto.control	Mark some contrib modules as "trusted".	6 years ago
pgcrypto.h	Remove unnecessary prototypes	9 years ago
pgp-armor.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-cfb.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-compress.c	Fix corner case with 16kB-long decompression in pgcrypto, take 2	5 years ago
pgp-decrypt.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-encrypt.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-info.c	Dial back -Wimplicit-fallthrough to level 3	5 years ago
pgp-mpi-internal.c	Clear some style deviations.	5 years ago
pgp-mpi-openssl.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-mpi.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-pgsql.c	Introduce macros for typalign and typstorage constants.	6 years ago
pgp-pubdec.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-pubenc.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-pubkey.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp-s2k.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
pgp.h	Fix inconsistencies and typos in the tree, take 10	6 years ago
px-crypt.c	Make the order of the header file includes consistent in contrib modules.	6 years ago
px-crypt.h	Phase 2 pgindent run for v12.	6 years ago
px-hmac.c	…
px.c	Clean up assorted failures under clang's -fsanitize=undefined checks.	4 years ago
px.h	Fix inconsistencies and typos in the tree, take 9	6 years ago
rijndael.c	Fix a boatload of typos in C comments.	8 years ago
rijndael.h	Phase 2 of pgindent updates.	8 years ago
rijndael.tbl	…
sha1.c	Fix inconsistencies and typos in the tree, take 9	6 years ago
sha1.h	Phase 2 of pgindent updates.	8 years ago