examples/imap-append: fix end-of-data check

Reported-by: Alexander Chuykov
Fixes #7774
Closes #7775

diff --git a/docs/examples/imap-append.c b/docs/examples/imap-append.c
index 8dc6d23fdbbe0d1f5e6a5ed0aad0a5e8206f9d3f..deeed43d216709ba8d1f59247ee70c25c5c7ba98 100644 (file)
--- a/docs/examples/imap-append.c
+++ b/docs/examples/imap-append.c
@@ -69,7 +69,7 @@ static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
 
   data = &payload_text[upload_ctx->bytes_read];
 
-  if(data) {
+  if(*data) {
     size_t len = strlen(data);
     if(room < len)
       len = room;