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Diffstat (limited to 'ext/gdbm/gdbm.c')
-rw-r--r--ext/gdbm/gdbm.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/ext/gdbm/gdbm.c b/ext/gdbm/gdbm.c
index ee56fbf5d1..799445a89c 100644
--- a/ext/gdbm/gdbm.c
+++ b/ext/gdbm/gdbm.c
@@ -387,6 +387,14 @@ fgdbm_values_at(argc, argv, obj)
return new;
}
+static void
+rb_gdbm_modify(obj)
+ VALUE obj;
+{
+ rb_secure(4);
+ if (OBJ_FROZEN(obj)) rb_error_frozen("GDBM");
+}
+
static VALUE
rb_gdbm_delete(obj, keystr)
VALUE obj, keystr;
@@ -395,7 +403,7 @@ rb_gdbm_delete(obj, keystr)
struct dbmdata *dbmp;
GDBM_FILE dbm;
- rb_secure(4);
+ rb_gdbm_modify(obj);
StringValue(keystr);
key.dptr = RSTRING(keystr)->ptr;
key.dsize = RSTRING(keystr)->len;
@@ -436,7 +444,7 @@ fgdbm_shift(obj)
GDBM_FILE dbm;
VALUE keystr, valstr;
- rb_secure(4);
+ rb_gdbm_modify(obj);
GetDBM(obj, dbmp);
dbm = dbmp->di_dbm;
@@ -458,7 +466,7 @@ fgdbm_delete_if(obj)
VALUE ret, ary = rb_ary_new();
int i, status = 0, n;
- rb_secure(4);
+ rb_gdbm_modify(obj);
GetDBM(obj, dbmp);
dbm = dbmp->di_dbm;
n = dbmp->di_size;
@@ -489,7 +497,7 @@ fgdbm_clear(obj)
struct dbmdata *dbmp;
GDBM_FILE dbm;
- rb_secure(4);
+ rb_gdbm_modify(obj);
GetDBM(obj, dbmp);
dbm = dbmp->di_dbm;
dbmp->di_size = -1;
@@ -588,7 +596,7 @@ fgdbm_store(obj, keystr, valstr)
struct dbmdata *dbmp;
GDBM_FILE dbm;
- rb_secure(4);
+ rb_gdbm_modify(obj);
StringValue(keystr);
key.dptr = RSTRING(keystr)->ptr;
key.dsize = RSTRING(keystr)->len;
@@ -830,7 +838,7 @@ fgdbm_reorganize(obj)
struct dbmdata *dbmp;
GDBM_FILE dbm;
- rb_secure(4);
+ rb_gdbm_modify(obj);
GetDBM(obj, dbmp);
dbm = dbmp->di_dbm;
gdbm_reorganize(dbm);
@@ -844,7 +852,7 @@ fgdbm_sync(obj)
struct dbmdata *dbmp;
GDBM_FILE dbm;
- rb_secure(4);
+ rb_gdbm_modify(obj);
GetDBM(obj, dbmp);
dbm = dbmp->di_dbm;
gdbm_sync(dbm);