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-rw-r--r--lib/smb.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/smb.c b/lib/smb.c
index fa9e43fca..1644471df 100644
--- a/lib/smb.c
+++ b/lib/smb.c
@@ -266,11 +266,11 @@ static CURLcode smb_recv_message(struct connectdata *conn, void **msg)
msg_size = sizeof(struct smb_header);
if(nbt_size >= msg_size + 1) {
/* Add the word count */
- msg_size += 1 + buf[msg_size] * sizeof(unsigned short);
+ msg_size += 1 + ((unsigned char) buf[msg_size]) * sizeof(unsigned short);
if(nbt_size >= msg_size + sizeof(unsigned short)) {
/* Add the byte count */
- msg_size += sizeof(unsigned short) + buf[msg_size] +
- (buf[msg_size + 1] << 8);
+ msg_size += sizeof(unsigned short) + ((unsigned char) buf[msg_size]) +
+ (((unsigned char) buf[msg_size + 1]) << 8);
if(nbt_size < msg_size)
return CURLE_READ_ERROR;
}