(ITS#8558) LMDB mdb_load plain text

[remy.chibois@expandium.com]

Full_Name: Remy Chibois
Version: LMDB_0.9+
OS: Debian "Jessie"
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (46.218.8.100)


when loading data into a LMDB database using plain text mode (mdb_load -T),
escaped hexadecimal pairs (such as \09 for a tab character) cause data to be
incorrectly converted.

Replacing mdb_load.c line 251 with "*c1++ = *c2++;"nsnstead of "c1++; c2++;"
fixes the issue (after the first escaped sequence, characters from c2 pointer
need to be copied to c1 pointer in order to properly overwrite escaped
sequence).