upscli_sendline - send a single command to a UPS
#include <upsclient.h>
int upscli_sendline(UPSCONN_t *ups, const char *buf, size_t buflen);
The upscli_sendline() function takes the pointer ups to a
UPSCONN_t state structure and transmits a buffer buf of size
buflen to the server.
The data in buf must be a fully formatted protocol command
as no parsing of the buffer occurs within this function.
The upscli_sendline() function returns 0 on success, or -1 if an error
occurs.
upscli_fd(3), upscli_get(3), upscli_readline(3),
upscli_sendline(3), upscli_ssl(3), upscli_strerror(3),
upscli_upserror(3)