X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=blobmsg.c;h=1e93376a27b65cf816f94f87738b98e8bb497ef6;hb=4a9f74f7ae6c092c731969c93f90ab4d6a07b524;hp=a2c2c5db66778b8a2c3e7c07ab64e84e2ed46879;hpb=7ba1f8acd8afb451a05276eda5d3567a53ef2fb3;p=project%2Flibubox.git

diff --git a/blobmsg.c b/blobmsg.c
index a2c2c5d..1e93376 100644
--- a/blobmsg.c
+++ b/blobmsg.c
@@ -220,34 +220,45 @@ blobmsg_open_nested(struct blob_buf *buf, const char *name, bool array)
 		name = "";
 
 	head = blobmsg_new(buf, type, name, 0, &data);
+	if (!head)
+		return NULL;
 	blob_set_raw_len(buf->head, blob_pad_len(buf->head) - blobmsg_hdrlen(strlen(name)));
 	buf->head = head;
 	return (void *)offset;
 }
 
-void
+int
 blobmsg_vprintf(struct blob_buf *buf, const char *name, const char *format, va_list arg)
 {
 	va_list arg2;
 	char cbuf;
-	int len;
+	char *sbuf;
+	int len, ret;
 
 	va_copy(arg2, arg);
 	len = vsnprintf(&cbuf, sizeof(cbuf), format, arg2);
 	va_end(arg2);
 
-	vsprintf(blobmsg_alloc_string_buffer(buf, name, len + 1), format, arg);
+	sbuf = blobmsg_alloc_string_buffer(buf, name, len + 1);
+	if (!sbuf)
+		return -1;
+	ret = vsprintf(sbuf, format, arg);
 	blobmsg_add_string_buffer(buf);
+
+	return ret;
 }
 
-void
+int
 blobmsg_printf(struct blob_buf *buf, const char *name, const char *format, ...)
 {
 	va_list ap;
+	int ret;
 
 	va_start(ap, format);
-	blobmsg_vprintf(buf, name, format, ap);
+	ret = blobmsg_vprintf(buf, name, format, ap);
 	va_end(ap);
+
+	return ret;
 }
 
 void *
@@ -260,7 +271,6 @@ blobmsg_alloc_string_buffer(struct blob_buf *buf, const char *name, unsigned int
 	if (!attr)
 		return NULL;
 
-	data_dest = blobmsg_data(attr);
 	blob_set_raw_len(buf->head, blob_pad_len(buf->head) - blob_pad_len(attr));
 	blob_set_raw_len(attr, blob_raw_len(attr) - maxlen);
 
@@ -277,7 +287,8 @@ blobmsg_realloc_string_buffer(struct blob_buf *buf, unsigned int maxlen)
 	if (required <= 0)
 		goto out;
 
-	blob_buf_grow(buf, required);
+	if (!blob_buf_grow(buf, required))
+		return NULL;
 	attr = blob_next(buf->head);
 
 out: