Function readConn

app/redis-6.2.6/src/redis-cli.c:7084–7087

Read raw bytes through a redisContext. The read operation is not greedy * and may not fill the buffer entirely. */

 * and may not fill the buffer entirely.
 */
static ssize_t readConn(redisContext *c, char *buf, size_t len)
{
    return c->funcs->read(c, buf, len);
}

/* Sends SYNC and reads the number of bytes in the payload. Used both by
 * slaveMode() and getRDB().