NAME
upscli_sendline, upscli_sendline_timeout - send a single command to a UPS
SYNOPSIS
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Note
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Two NUT websites
This version of the page reflects NUT release v2.8.1 with codebase commited 4ba352d8f at 2023-10-31T21:46:20+01:00 Options, features and capabilities in current development (and future releases) are detailed on the main site and may differ from ones described here. |
#include <upsclient.h>
#include <time.h> /* or <sys/time.h> on some platforms */int upscli_sendline(UPSCONN_t *ups, const char *buf, size_t buflen);int upscli_sendline_timeout(UPSCONN_t *ups, const char *buf, size_t buflen,
const time_t timeout);DESCRIPTION
The upscli_sendline() and upscli_sendline_timeout() functions take the
pointer ups to a UPSCONN_t state structure and transmit 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 difference between the two functions is that upscli_sendline_timeout() lets the caller decide the amount of time (timeout seconds) after which it should give up and return, whereas upscli_sendline() does not offer this freedom, and uses an immediate timeout (0 second).
RETURN VALUE
The upscli_sendline() and upscli_sendline_timeout() functions return 0 on success, or -1 if an error occurs.