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-rw-r--r--src/tool_operate.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/src/tool_operate.c b/src/tool_operate.c
index bf73479aa..a6f6f0b90 100644
--- a/src/tool_operate.c
+++ b/src/tool_operate.c
@@ -767,11 +767,16 @@ int operate(struct Configurable *config, int argc, argv_item_t argv[])
/* for uploads */
input.fd = infd;
input.config = config;
+ /* Note that if CURLOPT_READFUNCTION is fread (the default), then
+ * lib/telnet.c will Curl_poll() on the input file descriptor
+ * rather then calling the READFUNCTION at regular intervals.
+ * The circumstances in which it is preferable to enable this
+ * behaviour, by omitting to set the READFUNCTION & READDATA options,
+ * have not been determined.
+ */
my_setopt(curl, CURLOPT_READDATA, &input);
/* what call to read */
- if((outfile && !curlx_strequal("-", outfile)) ||
- !checkprefix("telnet:", this_url))
- my_setopt(curl, CURLOPT_READFUNCTION, tool_read_cb);
+ my_setopt(curl, CURLOPT_READFUNCTION, tool_read_cb);
/* in 7.18.0, the CURLOPT_SEEKFUNCTION/DATA pair is taking over what
CURLOPT_IOCTLFUNCTION/DATA pair previously provided for seeking */