upscli_fd - Get file descriptor for connection

       The upscli_fd() function takes the pointer ups to a UPSCONN_t state structure and returns the value of
       the file descriptor for that connection, if any.

       This may be useful for determining if the connection to upsd(8) has been lost.

       upscli_fd - Get file descriptor for connection

       The upscli_fd() function returns the file descriptor, which may be any non-negative number.

       It returns -1 if an error occurs.

upscli_connect(3), upscli_strerror(3), upscli_upserror(3)

Network UPS Tools 2.8.3                            07/08/2025                                       UPSCLI_FD(3)

               #include <upsclient.h>

               int upscli_fd(UPSCONN_t *ups);