security: silence conversion warning

With MinGW-w64, `curl_socket_t` is is a 32 or 64 bit unsigned integer,
while `read` expects a 32 bit signed integer.
Use `sread` instead of `read` to use the correct parameter type.

Closes https://github.com/curl/curl/pull/4483

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/security.c b/lib/security.c
index c5e4e135d..fbfa70741 100644
--- a/lib/security.c
+++ b/lib/security.c
@@ -236,7 +236,7 @@ static ssize_t sec_recv(struct connectdata *conn, int sockindex,
 
   /* Handle clear text response. */
   if(conn->sec_complete == 0 || conn->data_prot == PROT_CLEAR)
-      return read(fd, buffer, len);
+      return sread(fd, buffer, len);
 
   if(conn->in_buffer.eof_flag) {
     conn->in_buffer.eof_flag = 0;