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mdb_dbi_open(): Catch strdup failure

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Hallvard Furuseth 2015-12-12 19:25:06 +01:00 committed by Howard Chu
parent 14ce42f434
commit 18caeaa70b
1 changed files with 16 additions and 5 deletions
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21
libraries/liblmdb/mdb.c
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@ -9476,6 +9476,7 @@ int mdb_dbi_open(MDB_txn *txn, const char *name, unsigned int flags, MDB_dbi *db
MDB_db dummy;
int rc, dbflag, exact;
unsigned int unused = 0, seq;
char *namedup;
size_t len;
if (flags & ~VALID_FLAGS)
@ -9537,8 +9538,16 @@ int mdb_dbi_open(MDB_txn *txn, const char *name, unsigned int flags, MDB_dbi *db
MDB_node *node = NODEPTR(mc.mc_pg[mc.mc_top], mc.mc_ki[mc.mc_top]);
if ((node->mn_flags & (F_DUPDATA|F_SUBDATA)) != F_SUBDATA)
return MDB_INCOMPATIBLE;
} else if (rc == MDB_NOTFOUND && (flags & MDB_CREATE)) {
/* Create if requested */
} else if (! (rc == MDB_NOTFOUND && (flags & MDB_CREATE))) {
return rc;
}
/* Done here so we cannot fail after creating a new DB */
if ((namedup = strdup(name)) == NULL)
return ENOMEM;
if (rc) {
/* MDB_NOTFOUND and MDB_CREATE: Create new DB */
data.mv_size = sizeof(MDB_db);
data.mv_data = &dummy;
memset(&dummy, 0, sizeof(dummy));
@ -9548,10 +9557,12 @@ int mdb_dbi_open(MDB_txn *txn, const char *name, unsigned int flags, MDB_dbi *db
dbflag |= DB_DIRTY;
}
/* OK, got info, add to table */
if (rc == MDB_SUCCESS) {
if (rc) {
free(namedup);
} else {
/* Got info, register DBI in this txn */
unsigned int slot = unused ? unused : txn->mt_numdbs;
txn->mt_dbxs[slot].md_name.mv_data = strdup(name);
txn->mt_dbxs[slot].md_name.mv_data = namedup;
txn->mt_dbxs[slot].md_name.mv_size = len;
txn->mt_dbxs[slot].md_rel = NULL;
txn->mt_dbflags[slot] = dbflag;