Add missing string terminator

When copying the string strncpy won't add nul termination since
the string length is equal to the length specified.  Explicitly
set a nul terminator after copying to properly terminate. Found
via post-commit review.

Author: Rahila Syed <[email protected]>
Reviewed-by: Daniel Gustafsson <[email protected]>
Discussion: https://postgr.es/m/CAH2L28vt16C9xTuK+K7QZvtA3kCNWXOEiT=gEekUw3Xxp9LVQw@mail.gmail.com

diff --git a/src/backend/utils/mmgr/mcxt.c b/src/backend/utils/mmgr/mcxt.c
index 506f29029865c0590e02ff15b07f6f921826fae6..786e92039b1b3c3a3886fb46c9f9703cd7328a74 100644 (file)
--- a/src/backend/utils/mmgr/mcxt.c
+++ b/src/backend/utils/mmgr/mcxt.c
@@ -1663,6 +1663,7 @@ ProcessGetMemoryContextInterrupt(void)
            meminfo[max_stats - 1].name = dsa_allocate(MemoryStatsDsaArea, namelen + 1);
            nameptr = dsa_get_address(MemoryStatsDsaArea, meminfo[max_stats - 1].name);
            strncpy(nameptr, "Remaining Totals", namelen);
+           nameptr[namelen] = '\0';
            meminfo[max_stats - 1].ident = InvalidDsaPointer;
            meminfo[max_stats - 1].path = InvalidDsaPointer;
            meminfo[max_stats - 1].type = 0;