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authorTom Lane <tgl@sss.pgh.pa.us>2022-08-15 15:40:07 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2022-08-15 15:40:07 -0400
commitbb9237a1295a29c4e41b97f9d34e3922ac69c071 (patch)
tree549a27cf53db9a763db3203316165ee2e0ce0428 /src/interfaces/libpq/fe-secure-openssl.c
parent1c5818b9c68e5c2ac8f19d372f24cce409de1a26 (diff)
Add missing bad-PGconn guards in libpq entry points.
There's a convention that externally-visible libpq functions should check for a NULL PGconn pointer, and fail gracefully instead of crashing. PQflush() and PQisnonblocking() didn't get that memo though. Also add a similar check to PQdefaultSSLKeyPassHook_OpenSSL; while it's not clear that ordinary usage could reach that with a null conn pointer, it's cheap enough to check, so let's be consistent. Daniele Varrazzo and Tom Lane Discussion: https://postgr.es/m/CA+mi_8Zm_mVVyW1iNFgyMd9Oh0Nv8-F+7Y3-BqwMgTMHuo_h2Q@mail.gmail.com
Diffstat (limited to 'src/interfaces/libpq/fe-secure-openssl.c')
-rw-r--r--src/interfaces/libpq/fe-secure-openssl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/interfaces/libpq/fe-secure-openssl.c b/src/interfaces/libpq/fe-secure-openssl.c
index 8117cbd40f1..3cc75380e02 100644
--- a/src/interfaces/libpq/fe-secure-openssl.c
+++ b/src/interfaces/libpq/fe-secure-openssl.c
@@ -1938,7 +1938,7 @@ err:
int
PQdefaultSSLKeyPassHook_OpenSSL(char *buf, int size, PGconn *conn)
{
- if (conn->sslpassword)
+ if (conn && conn->sslpassword)
{
if (strlen(conn->sslpassword) + 1 > size)
fprintf(stderr, libpq_gettext("WARNING: sslpassword truncated\n"));