[sr-dev] git:5.3:0864bad2: htable: safety check for item name value

[Daniel-Constantin Mierla]

Module: kamailio
Branch: 5.3
Commit: 0864bad2953aa2c85e4da0e8ebe0ce110a22db52
URL: https://github.com/kamailio/kamailio/commit/0864bad2953aa2c85e4da0e8ebe0ce110a22db52

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date: 2020-01-29T10:48:06+01:00

htable: safety check for item name value

(cherry picked from commit 0dbf08635a4b2f6e544c26da0a7f542f1863939b)

---

Modified: src/modules/htable/ht_api.c

---

Diff:  https://github.com/kamailio/kamailio/commit/0864bad2953aa2c85e4da0e8ebe0ce110a22db52.diff
Patch: https://github.com/kamailio/kamailio/commit/0864bad2953aa2c85e4da0e8ebe0ce110a22db52.patch

---

diff --git a/src/modules/htable/ht_api.c b/src/modules/htable/ht_api.c
index e8c27c426e..d6b94a05a6 100644
--- a/src/modules/htable/ht_api.c
+++ b/src/modules/htable/ht_api.c
@@ -237,6 +237,10 @@ ht_t* ht_get_table(str *name)
 	unsigned int htid;
 	ht_t *ht;
 
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return NULL;
+	}
 	htid = ht_compute_hash(name);
 
 	/* does it exist */
@@ -263,6 +267,10 @@ int ht_add_table(str *name, int autoexp, str *dbtable, str *dbcols, int size,
 	int c;
 	int i;
 
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return -1;
+	}
 	htid = ht_compute_hash(name);
 
 	/* does it exist */
@@ -463,8 +471,14 @@ int ht_set_cell_ex(ht_t *ht, str *name, int type, int_str *val, int mode,
 	ht_cell_t *it, *prev, *cell;
 	time_t now;
 
-	if(ht==NULL || ht->entries==NULL)
+	if(ht==NULL || ht->entries==NULL) {
+		LM_WARN("invalid ht parameter\n");
 		return -1;
+	}
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return -1;
+	}
 
 	hid = ht_compute_hash(name);
 
@@ -639,6 +653,10 @@ int ht_del_cell(ht_t *ht, str *name)
 	if(ht==NULL || ht->entries==NULL)
 		return -1;
 
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return -1;
+	}
 	hid = ht_compute_hash(name);
 
 	idx = ht_get_entry(hid, ht->htsize);
@@ -685,6 +703,10 @@ ht_cell_t* ht_cell_value_add(ht_t *ht, str *name, int val, ht_cell_t *old)
 	if(ht==NULL || ht->entries==NULL)
 		return NULL;
 
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return NULL;
+	}
 	hid = ht_compute_hash(name);
 
 	idx = ht_get_entry(hid, ht->htsize);
@@ -807,6 +829,10 @@ ht_cell_t* ht_cell_pkg_copy(ht_t *ht, str *name, ht_cell_t *old)
 	if(ht==NULL || ht->entries==NULL)
 		return NULL;
 
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return NULL;
+	}
 	hid = ht_compute_hash(name);
 
 	idx = ht_get_entry(hid, ht->htsize);
@@ -1157,6 +1183,10 @@ int ht_set_cell_expire(ht_t *ht, str *name, int type, int_str *val)
 	if(ht->htexpire==0)
 		return 0;
 
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return -1;
+	}
 	hid = ht_compute_hash(name);
 
 	idx = ht_get_entry(hid, ht->htsize);
@@ -1202,6 +1232,10 @@ int ht_get_cell_expire(ht_t *ht, str *name, unsigned int *val)
 	if(ht->htexpire==0)
 		return 0;
 
+	if(name==NULL || name->s==NULL) {
+		LM_WARN("invalid name parameter\n");
+		return -1;
+	}
 	hid = ht_compute_hash(name);
 
 	idx = ht_get_entry(hid, ht->htsize);