src: return value on setters that internally allocate memory

So the client can bail out of memory allocation errors. Or in case of
daemon, make sure things are left in consistent state before bailing
out.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

13 files changed, 79 insertions, 60 deletions

diff --git a/include/libnftnl/chain.h b/include/libnftnl/chain.h
index 954b39f..ed21e48 100644
--- a/include/libnftnl/chain.h
+++ b/include/libnftnl/chain.h
@@ -37,13 +37,13 @@ enum nftnl_chain_attr {
 bool nftnl_chain_is_set(const struct nftnl_chain *c, uint16_t attr);
 void nftnl_chain_unset(struct nftnl_chain *c, uint16_t attr);
 void nftnl_chain_set(struct nftnl_chain *t, uint16_t attr, const void *data);
-void nftnl_chain_set_data(struct nftnl_chain *t, uint16_t attr,
+int nftnl_chain_set_data(struct nftnl_chain *t, uint16_t attr,
 			     const void *data, uint32_t data_len);
 void nftnl_chain_set_u8(struct nftnl_chain *t, uint16_t attr, uint8_t data);
 void nftnl_chain_set_u32(struct nftnl_chain *t, uint16_t attr, uint32_t data);
 void nftnl_chain_set_s32(struct nftnl_chain *t, uint16_t attr, int32_t data);
 void nftnl_chain_set_u64(struct nftnl_chain *t, uint16_t attr, uint64_t data);
-void nftnl_chain_set_str(struct nftnl_chain *t, uint16_t attr, const char *str);
+int nftnl_chain_set_str(struct nftnl_chain *t, uint16_t attr, const char *str);
 
 const void *nftnl_chain_get(const struct nftnl_chain *c, uint16_t attr);
 const void *nftnl_chain_get_data(const struct nftnl_chain *c, uint16_t attr,
diff --git a/include/libnftnl/expr.h b/include/libnftnl/expr.h
index f192103..4140652 100644
--- a/include/libnftnl/expr.h
+++ b/include/libnftnl/expr.h
@@ -20,13 +20,13 @@ struct nftnl_expr *nftnl_expr_alloc(const char *name);
 void nftnl_expr_free(const struct nftnl_expr *expr);
 
 bool nftnl_expr_is_set(const struct nftnl_expr *expr, uint16_t type);
-void nftnl_expr_set(struct nftnl_expr *expr, uint16_t type, const void *data, uint32_t data_len);
+int nftnl_expr_set(struct nftnl_expr *expr, uint16_t type, const void *data, uint32_t data_len);
 #define nftnl_expr_set_data nftnl_expr_set
 void nftnl_expr_set_u8(struct nftnl_expr *expr, uint16_t type, uint8_t data);
 void nftnl_expr_set_u16(struct nftnl_expr *expr, uint16_t type, uint16_t data);
 void nftnl_expr_set_u32(struct nftnl_expr *expr, uint16_t type, uint32_t data);
 void nftnl_expr_set_u64(struct nftnl_expr *expr, uint16_t type, uint64_t data);
-void nftnl_expr_set_str(struct nftnl_expr *expr, uint16_t type, const char *str);
+int nftnl_expr_set_str(struct nftnl_expr *expr, uint16_t type, const char *str);
 
 const void *nftnl_expr_get(const struct nftnl_expr *expr, uint16_t type, uint32_t *data_len);
 #define nftnl_expr_get_data nftnl_expr_get
diff --git a/include/libnftnl/gen.h b/include/libnftnl/gen.h
index d0f638f..31705a0 100644
--- a/include/libnftnl/gen.h
+++ b/include/libnftnl/gen.h
@@ -25,9 +25,9 @@ enum {
 
 bool nftnl_gen_is_set(const struct nftnl_gen *gen, uint16_t attr);
 void nftnl_gen_unset(struct nftnl_gen *gen, uint16_t attr);
-void nftnl_gen_set(struct nftnl_gen *gen, uint16_t attr, const void *data);
-void nftnl_gen_set_data(struct nftnl_gen *gen, uint16_t attr,
-			     const void *data, uint32_t data_len);
+int nftnl_gen_set(struct nftnl_gen *gen, uint16_t attr, const void *data);
+int nftnl_gen_set_data(struct nftnl_gen *gen, uint16_t attr,
+		       const void *data, uint32_t data_len);
 const void *nftnl_gen_get(const struct nftnl_gen *gen, uint16_t attr);
 const void *nftnl_gen_get_data(const struct nftnl_gen *gen, uint16_t attr,
 			       uint32_t *data_len);
diff --git a/include/libnftnl/rule.h b/include/libnftnl/rule.h
index 6f9d8c1..2776a77 100644
--- a/include/libnftnl/rule.h
+++ b/include/libnftnl/rule.h
@@ -33,12 +33,12 @@ enum nftnl_rule_attr {
 
 void nftnl_rule_unset(struct nftnl_rule *r, uint16_t attr);
 bool nftnl_rule_is_set(const struct nftnl_rule *r, uint16_t attr);
-void nftnl_rule_set(struct nftnl_rule *r, uint16_t attr, const void *data);
-void nftnl_rule_set_data(struct nftnl_rule *r, uint16_t attr,
-			    const void *data, uint32_t data_len);
+int nftnl_rule_set(struct nftnl_rule *r, uint16_t attr, const void *data);
+int nftnl_rule_set_data(struct nftnl_rule *r, uint16_t attr,
+			const void *data, uint32_t data_len);
 void nftnl_rule_set_u32(struct nftnl_rule *r, uint16_t attr, uint32_t val);
 void nftnl_rule_set_u64(struct nftnl_rule *r, uint16_t attr, uint64_t val);
-void nftnl_rule_set_str(struct nftnl_rule *r, uint16_t attr, const char *str);
+int nftnl_rule_set_str(struct nftnl_rule *r, uint16_t attr, const char *str);
 
 const void *nftnl_rule_get(const struct nftnl_rule *r, uint16_t attr);
 const void *nftnl_rule_get_data(const struct nftnl_rule *r, uint16_t attr,
diff --git a/include/libnftnl/set.h b/include/libnftnl/set.h
index c9a879a..3d50d56 100644
--- a/include/libnftnl/set.h
+++ b/include/libnftnl/set.h
@@ -35,12 +35,12 @@ struct nftnl_set *nftnl_set_clone(const struct nftnl_set *set);
 
 bool nftnl_set_is_set(const struct nftnl_set *s, uint16_t attr);
 void nftnl_set_unset(struct nftnl_set *s, uint16_t attr);
-void nftnl_set_set(struct nftnl_set *s, uint16_t attr, const void *data);
-void nftnl_set_set_data(struct nftnl_set *s, uint16_t attr, const void *data,
-			   uint32_t data_len);
+int nftnl_set_set(struct nftnl_set *s, uint16_t attr, const void *data);
+int nftnl_set_set_data(struct nftnl_set *s, uint16_t attr, const void *data,
+		       uint32_t data_len);
 void nftnl_set_set_u32(struct nftnl_set *s, uint16_t attr, uint32_t val);
 void nftnl_set_set_u64(struct nftnl_set *s, uint16_t attr, uint64_t val);
-void nftnl_set_set_str(struct nftnl_set *s, uint16_t attr, const char *str);
+int nftnl_set_set_str(struct nftnl_set *s, uint16_t attr, const char *str);
 
 const void *nftnl_set_get(const struct nftnl_set *s, uint16_t attr);
 const void *nftnl_set_get_data(const struct nftnl_set *s, uint16_t attr,
@@ -106,10 +106,10 @@ struct nftnl_set_elem *nftnl_set_elem_clone(struct nftnl_set_elem *elem);
 void nftnl_set_elem_add(struct nftnl_set *s, struct nftnl_set_elem *elem);
 
 void nftnl_set_elem_unset(struct nftnl_set_elem *s, uint16_t attr);
-void nftnl_set_elem_set(struct nftnl_set_elem *s, uint16_t attr, const void *data, uint32_t data_len);
+int nftnl_set_elem_set(struct nftnl_set_elem *s, uint16_t attr, const void *data, uint32_t data_len);
 void nftnl_set_elem_set_u32(struct nftnl_set_elem *s, uint16_t attr, uint32_t val);
 void nftnl_set_elem_set_u64(struct nftnl_set_elem *s, uint16_t attr, uint64_t val);
-void nftnl_set_elem_set_str(struct nftnl_set_elem *s, uint16_t attr, const char *str);
+int nftnl_set_elem_set_str(struct nftnl_set_elem *s, uint16_t attr, const char *str);
 
 const void *nftnl_set_elem_get(struct nftnl_set_elem *s, uint16_t attr, uint32_t *data_len);
 const char *nftnl_set_elem_get_str(struct nftnl_set_elem *s, uint16_t attr);
diff --git a/include/libnftnl/table.h b/include/libnftnl/table.h
index 8972d09..1f9ab1c 100644
--- a/include/libnftnl/table.h
+++ b/include/libnftnl/table.h
@@ -29,15 +29,15 @@ enum nftnl_table_attr {
 bool nftnl_table_is_set(const struct nftnl_table *t, uint16_t attr);
 void nftnl_table_unset(struct nftnl_table *t, uint16_t attr);
 void nftnl_table_set(struct nftnl_table *t, uint16_t attr, const void *data);
-void nftnl_table_set_data(struct nftnl_table *t, uint16_t attr,
-			     const void *data, uint32_t data_len);
+int nftnl_table_set_data(struct nftnl_table *t, uint16_t attr,
+			 const void *data, uint32_t data_len);
 const void *nftnl_table_get(const struct nftnl_table *t, uint16_t attr);
 const void *nftnl_table_get_data(const struct nftnl_table *t, uint16_t attr,
 				 uint32_t *data_len);
 
 void nftnl_table_set_u8(struct nftnl_table *t, uint16_t attr, uint8_t data);
 void nftnl_table_set_u32(struct nftnl_table *t, uint16_t attr, uint32_t data);
-void nftnl_table_set_str(struct nftnl_table *t, uint16_t attr, const char *str);
+int nftnl_table_set_str(struct nftnl_table *t, uint16_t attr, const char *str);
 uint8_t nftnl_table_get_u8(const struct nftnl_table *t, uint16_t attr);
 uint32_t nftnl_table_get_u32(const struct nftnl_table *t, uint16_t attr);
 const char *nftnl_table_get_str(const struct nftnl_table *t, uint16_t attr);
diff --git a/src/chain.c b/src/chain.c
index c7a9597..46c5cd8 100644
--- a/src/chain.c
+++ b/src/chain.c
@@ -165,8 +165,8 @@ static uint32_t nftnl_chain_validate[NFTNL_CHAIN_MAX + 1] = {
 	[NFTNL_CHAIN_FAMILY]		= sizeof(uint32_t),
 };
 
-void nftnl_chain_set_data(struct nftnl_chain *c, uint16_t attr,
-			     const void *data, uint32_t data_len)
+int nftnl_chain_set_data(struct nftnl_chain *c, uint16_t attr,
+			 const void *data, uint32_t data_len)
 {
 	nftnl_assert_attr_exists(attr, NFTNL_CHAIN_MAX);
 	nftnl_assert_validate(data, nftnl_chain_validate, attr, data_len);
@@ -180,6 +180,8 @@ void nftnl_chain_set_data(struct nftnl_chain *c, uint16_t attr,
 			xfree(c->table);
 
 		c->table = strdup(data);
+		if (!c->table)
+			return -1;
 		break;
 	case NFTNL_CHAIN_HOOKNUM:
 		memcpy(&c->hooknum, data, sizeof(c->hooknum));
@@ -210,15 +212,20 @@ void nftnl_chain_set_data(struct nftnl_chain *c, uint16_t attr,
 			xfree(c->type);
 
 		c->type = strdup(data);
+		if (!c->type)
+			return -1;
 		break;
 	case NFTNL_CHAIN_DEV:
 		if (c->dev)
 			xfree(c->dev);
 
 		c->dev = strdup(data);
+		if (!c->type)
+			return -1;
 		break;
 	}
 	c->flags |= (1 << attr);
+	return 0;
 }
 EXPORT_SYMBOL_ALIAS(nftnl_chain_set_data, nft_chain_attr_set_data);
 
@@ -252,9 +259,9 @@ void nftnl_chain_set_u8(struct nftnl_chain *c, uint16_t attr, uint8_t data)
 }
 EXPORT_SYMBOL_ALIAS(nftnl_chain_set_u8, nft_chain_attr_set_u8);
 
-void nftnl_chain_set_str(struct nftnl_chain *c, uint16_t attr, const char *str)
+int nftnl_chain_set_str(struct nftnl_chain *c, uint16_t attr, const char *str)
 {
-	nftnl_chain_set_data(c, attr, str, strlen(str));
+	return nftnl_chain_set_data(c, attr, str, strlen(str));
 }
 EXPORT_SYMBOL_ALIAS(nftnl_chain_set_str, nft_chain_attr_set_str);
 
diff --git a/src/expr.c b/src/expr.c
index ed07dc4..f802725 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -60,18 +60,18 @@ bool nftnl_expr_is_set(const struct nftnl_expr *expr, uint16_t type)
 }
 EXPORT_SYMBOL_ALIAS(nftnl_expr_is_set, nft_rule_expr_is_set);
 
-void
-nftnl_expr_set(struct nftnl_expr *expr, uint16_t type,
-		  const void *data, uint32_t data_len)
+int nftnl_expr_set(struct nftnl_expr *expr, uint16_t type,
+		   const void *data, uint32_t data_len)
 {
 	switch(type) {
 	case NFTNL_EXPR_NAME:	/* cannot be modified */
-		return;
+		return 0;
 	default:
 		if (expr->ops->set(expr, type, data, data_len) < 0)
-			return;
+			return -1;
 	}
 	expr->flags |= (1 << type);
+	return 0;
 }
 EXPORT_SYMBOL_ALIAS(nftnl_expr_set, nft_rule_expr_set);
 
@@ -103,10 +103,9 @@ nftnl_expr_set_u64(struct nftnl_expr *expr, uint16_t type, uint64_t data)
 }
 EXPORT_SYMBOL_ALIAS(nftnl_expr_set_u64, nft_rule_expr_set_u64);
 
-void
-nftnl_expr_set_str(struct nftnl_expr *expr, uint16_t type, const char *str)
+int nftnl_expr_set_str(struct nftnl_expr *expr, uint16_t type, const char *str)
 {
-	nftnl_expr_set(expr, type, str, strlen(str)+1);
+	return nftnl_expr_set(expr, type, str, strlen(str) + 1);
 }
 EXPORT_SYMBOL_ALIAS(nftnl_expr_set_str, nft_rule_expr_set_str);
 
diff --git a/src/gen.c b/src/gen.c
index ea29e2a..37a9049 100644
--- a/src/gen.c
+++ b/src/gen.c
@@ -64,8 +64,8 @@ static uint32_t nftnl_gen_validate[NFTNL_GEN_MAX + 1] = {
 	[NFTNL_GEN_ID]	= sizeof(uint32_t),
 };
 
-void nftnl_gen_set_data(struct nftnl_gen *gen, uint16_t attr,
-			   const void *data, uint32_t data_len)
+int nftnl_gen_set_data(struct nftnl_gen *gen, uint16_t attr,
+		       const void *data, uint32_t data_len)
 {
 	nftnl_assert_attr_exists(attr, NFTNL_GEN_MAX);
 	nftnl_assert_validate(data, nftnl_gen_validate, attr, data_len);
@@ -76,12 +76,13 @@ void nftnl_gen_set_data(struct nftnl_gen *gen, uint16_t attr,
 		break;
 	}
 	gen->flags |= (1 << attr);
+	return 0;
 }
 EXPORT_SYMBOL_ALIAS(nftnl_gen_set_data, nft_gen_attr_set_data);
 
-void nftnl_gen_set(struct nftnl_gen *gen, uint16_t attr, const void *data)
+int nftnl_gen_set(struct nftnl_gen *gen, uint16_t attr, const void *data)
 {
-	nftnl_gen_set_data(gen, attr, data, nftnl_gen_validate[attr]);
+	return nftnl_gen_set_data(gen, attr, data, nftnl_gen_validate[attr]);
 }
 EXPORT_SYMBOL_ALIAS(nftnl_gen_set, nft_gen_attr_set);
 
diff --git a/src/rule.c b/src/rule.c
index e63c961..80393c5 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -129,8 +129,8 @@ static uint32_t nftnl_rule_validate[NFTNL_RULE_MAX + 1] = {
 	[NFTNL_RULE_POSITION]	= sizeof(uint64_t),
 };
 
-void nftnl_rule_set_data(struct nftnl_rule *r, uint16_t attr,
-			    const void *data, uint32_t data_len)
+int nftnl_rule_set_data(struct nftnl_rule *r, uint16_t attr,
+			const void *data, uint32_t data_len)
 {
 	nftnl_assert_attr_exists(attr, NFTNL_RULE_MAX);
 	nftnl_assert_validate(data, nftnl_rule_validate, attr, data_len);
@@ -141,12 +141,16 @@ void nftnl_rule_set_data(struct nftnl_rule *r, uint16_t attr,
 			xfree(r->table);
 
 		r->table = strdup(data);
+		if (!r->table)
+			return -1;
 		break;
 	case NFTNL_RULE_CHAIN:
 		if (r->chain)
 			xfree(r->chain);
 
 		r->chain = strdup(data);
+		if (!r->chain)
+			return -1;
 		break;
 	case NFTNL_RULE_HANDLE:
 		r->handle = *((uint64_t *)data);
@@ -169,19 +173,20 @@ void nftnl_rule_set_data(struct nftnl_rule *r, uint16_t attr,
 
 		r->user.data = malloc(data_len);
 		if (!r->user.data)
-			return;
+			return -1;
 
 		memcpy(r->user.data, data, data_len);
 		r->user.len = data_len;
 		break;
 	}
 	r->flags |= (1 << attr);
+	return 0;
 }
 EXPORT_SYMBOL_ALIAS(nftnl_rule_set_data, nft_rule_attr_set_data);
 
-void nftnl_rule_set(struct nftnl_rule *r, uint16_t attr, const void *data)
+int nftnl_rule_set(struct nftnl_rule *r, uint16_t attr, const void *data)
 {
-	nftnl_rule_set_data(r, attr, data, nftnl_rule_validate[attr]);
+	return nftnl_rule_set_data(r, attr, data, nftnl_rule_validate[attr]);
 }
 EXPORT_SYMBOL_ALIAS(nftnl_rule_set, nft_rule_attr_set);
 
@@ -197,9 +202,9 @@ void nftnl_rule_set_u64(struct nftnl_rule *r, uint16_t attr, uint64_t val)
 }
 EXPORT_SYMBOL_ALIAS(nftnl_rule_set_u64, nft_rule_attr_set_u64);
 
-void nftnl_rule_set_str(struct nftnl_rule *r, uint16_t attr, const char *str)
+int nftnl_rule_set_str(struct nftnl_rule *r, uint16_t attr, const char *str)
 {
-	nftnl_rule_set_data(r, attr, str, strlen(str));
+	return nftnl_rule_set_data(r, attr, str, strlen(str));
 }
 EXPORT_SYMBOL_ALIAS(nftnl_rule_set_str, nft_rule_attr_set_str);
 
diff --git a/src/set.c b/src/set.c
index d2467e4..02d0890 100644
--- a/src/set.c
+++ b/src/set.c
@@ -113,8 +113,8 @@ static uint32_t nftnl_set_validate[NFTNL_SET_MAX + 1] = {
 	[NFTNL_SET_GC_INTERVAL]	= sizeof(uint32_t),
 };
 
-void nftnl_set_set_data(struct nftnl_set *s, uint16_t attr, const void *data,
-			   uint32_t data_len)
+int nftnl_set_set_data(struct nftnl_set *s, uint16_t attr, const void *data,
+		       uint32_t data_len)
 {
 	nftnl_assert_attr_exists(attr, NFTNL_SET_MAX);
 	nftnl_assert_validate(data, nftnl_set_validate, attr, data_len);
@@ -125,12 +125,16 @@ void nftnl_set_set_data(struct nftnl_set *s, uint16_t attr, const void *data,
 			xfree(s->table);
 
 		s->table = strdup(data);
+		if (!s->table)
+			return -1;
 		break;
 	case NFTNL_SET_NAME:
 		if (s->name)
 			xfree(s->name);
 
 		s->name = strdup(data);
+		if (!s->name)
+			return -1;
 		break;
 	case NFTNL_SET_FLAGS:
 		s->set_flags = *((uint32_t *)data);
@@ -167,12 +171,13 @@ void nftnl_set_set_data(struct nftnl_set *s, uint16_t attr, const void *data,
 		break;
 	}
 	s->flags |= (1 << attr);
+	return 0;
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_set_data, nft_set_attr_set_data);
 
-void nftnl_set_set(struct nftnl_set *s, uint16_t attr, const void *data)
+int nftnl_set_set(struct nftnl_set *s, uint16_t attr, const void *data)
 {
-	nftnl_set_set_data(s, attr, data, nftnl_set_validate[attr]);
+	return nftnl_set_set_data(s, attr, data, nftnl_set_validate[attr]);
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_set, nft_set_attr_set);
 
@@ -188,9 +193,9 @@ void nftnl_set_set_u64(struct nftnl_set *s, uint16_t attr, uint64_t val)
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_set_u64, nft_set_attr_set_u64);
 
-void nftnl_set_set_str(struct nftnl_set *s, uint16_t attr, const char *str)
+int nftnl_set_set_str(struct nftnl_set *s, uint16_t attr, const char *str)
 {
-	nftnl_set_set(s, attr, str);
+	return nftnl_set_set(s, attr, str);
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_set_str, nft_set_attr_set_str);
 
diff --git a/src/set_elem.c b/src/set_elem.c
index 36289e5..7e3a995 100644
--- a/src/set_elem.c
+++ b/src/set_elem.c
@@ -99,8 +99,8 @@ void nftnl_set_elem_unset(struct nftnl_set_elem *s, uint16_t attr)
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_elem_unset, nft_set_elem_attr_unset);
 
-void nftnl_set_elem_set(struct nftnl_set_elem *s, uint16_t attr,
-			   const void *data, uint32_t data_len)
+int nftnl_set_elem_set(struct nftnl_set_elem *s, uint16_t attr,
+		       const void *data, uint32_t data_len)
 {
 	switch(attr) {
 	case NFTNL_SET_ELEM_FLAGS:
@@ -132,14 +132,13 @@ void nftnl_set_elem_set(struct nftnl_set_elem *s, uint16_t attr,
 
 		s->user.data = malloc(data_len);
 		if (!s->user.data)
-			return;
+			return -1;
 		memcpy(s->user.data, data, data_len);
 		s->user.len = data_len;
 		break;
-	default:
-		return;
 	}
 	s->flags |= (1 << attr);
+	return -1;
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_elem_set, nft_set_elem_attr_set);
 
@@ -155,9 +154,9 @@ void nftnl_set_elem_set_u64(struct nftnl_set_elem *s, uint16_t attr, uint64_t va
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_elem_set_u64, nft_set_elem_attr_set_u64);
 
-void nftnl_set_elem_set_str(struct nftnl_set_elem *s, uint16_t attr, const char *str)
+int nftnl_set_elem_set_str(struct nftnl_set_elem *s, uint16_t attr, const char *str)
 {
-	nftnl_set_elem_set(s, attr, str, strlen(str));
+	return nftnl_set_elem_set(s, attr, str, strlen(str));
 }
 EXPORT_SYMBOL_ALIAS(nftnl_set_elem_set_str, nft_set_elem_attr_set_str);
 
diff --git a/src/table.c b/src/table.c
index 7eefc70..e4c61aa 100644
--- a/src/table.c
+++ b/src/table.c
@@ -84,8 +84,8 @@ static uint32_t nftnl_table_validate[NFTNL_TABLE_MAX + 1] = {
 	[NFTNL_TABLE_FAMILY]	= sizeof(uint32_t),
 };
 
-void nftnl_table_set_data(struct nftnl_table *t, uint16_t attr,
-			     const void *data, uint32_t data_len)
+int nftnl_table_set_data(struct nftnl_table *t, uint16_t attr,
+			 const void *data, uint32_t data_len)
 {
 	nftnl_assert_attr_exists(attr, NFTNL_TABLE_MAX);
 	nftnl_assert_validate(data, nftnl_table_validate, attr, data_len);
@@ -96,6 +96,8 @@ void nftnl_table_set_data(struct nftnl_table *t, uint16_t attr,
 			xfree(t->name);
 
 		t->name = strdup(data);
+		if (!t->name)
+			return -1;
 		break;
 	case NFTNL_TABLE_FLAGS:
 		t->table_flags = *((uint32_t *)data);
@@ -108,6 +110,7 @@ void nftnl_table_set_data(struct nftnl_table *t, uint16_t attr,
 		break;
 	}
 	t->flags |= (1 << attr);
+	return 0;
 }
 EXPORT_SYMBOL_ALIAS(nftnl_table_set_data, nft_table_attr_set_data);
 
@@ -129,9 +132,9 @@ void nftnl_table_set_u8(struct nftnl_table *t, uint16_t attr, uint8_t val)
 }
 EXPORT_SYMBOL_ALIAS(nftnl_table_set_u8, nft_table_attr_set_u8);
 
-void nftnl_table_set_str(struct nftnl_table *t, uint16_t attr, const char *str)
+int nftnl_table_set_str(struct nftnl_table *t, uint16_t attr, const char *str)
 {
-	nftnl_table_set_data(t, attr, str, 0);
+	return nftnl_table_set_data(t, attr, str, 0);
 }
 EXPORT_SYMBOL_ALIAS(nftnl_table_set_str, nft_table_attr_set_str);