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		2022-03-03 18:13:24 -05:00
..
expected	Add alternative output for OpenSSL 3 without legacy loaded	2021-09-25 11:27:28 +02:00
sql	Fix corner case with 16kB-long decompression in pgcrypto, take 2	2020-07-27 15:58:54 +09:00
.gitignore
blf.c
blf.h
crypt-blowfish.c	Get rid of trailing semicolons in C macro definitions.	2020-05-01 17:28:00 -04:00
crypt-des.c
crypt-gensalt.c
crypt-md5.c	Add missing error check in pgcrypto/crypt-md5.c.	2020-10-16 11:59:25 -04:00
imath.c
imath.h
internal-sha2.c
internal.c
Makefile
mbuf.c
mbuf.h
md5.c
md5.h
openssl.c	Disable OpenSSL EVP digest padding in pgcrypto	2021-09-25 11:27:20 +02:00
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	Fix corner case with 16kB-long decompression in pgcrypto, take 2	2020-07-27 15:58:54 +09:00
pgp-decrypt.c
pgp-encrypt.c
pgp-info.c	Dial back -Wimplicit-fallthrough to level 3	2020-05-13 15:31:14 -04:00
pgp-mpi-internal.c	Clear some style deviations.	2020-05-21 08:31:16 -07:00
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
rijndael.c
rijndael.h
rijndael.tbl
sha1.c
sha1.h