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-rw-r--r--src/gdbmsetopt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gdbmsetopt.c b/src/gdbmsetopt.c
index db19f5c..eedfef6 100644
--- a/src/gdbmsetopt.c
+++ b/src/gdbmsetopt.c
@@ -336,7 +336,8 @@ gdbm_setopt (GDBM_FILE dbf, int optflag, void *optval, int optlen)
GDBM_ASSERT_CONSISTENCY (dbf, -1);
if (optflag >= 0
- && optflag < sizeof (setopt_handler_tab) / sizeof (setopt_handler_tab[0]))
+ && optflag < sizeof (setopt_handler_tab) / sizeof (setopt_handler_tab[0])
+ && setopt_handler_tab[optflag])
return setopt_handler_tab[optflag] (dbf, optval, optlen);
GDBM_SET_ERRNO (dbf, GDBM_OPT_ILLEGAL, FALSE);

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