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Fix possible overflow in check_ups (Fixes: #1030)

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PhiBo 2021-11-24 11:23:47 +01:00
parent df835cfde0
commit 09bfb1b482
1 changed files with 4 additions and 1 deletions
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5
plugins/check_ups.c
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@ -402,7 +402,10 @@ get_ups_variable (const char *varname, char *buf, size_t buflen)
/* create the command string to send to the UPS daemon */
/* Add LOGOUT to avoid read failure logs */
sprintf (send_buffer, "GET VAR %s %s\nLOGOUT\n", ups_name, varname);
if (snprintf (send_buffer, sizeof(send_buffer), "GET VAR %s %s\nLOGOUT\n", ups_name, varname) >= sizeof(send_buffer)) {
printf("%s\n", _("UPS name to long for buffer"));
return ERROR;
}
/* send the command to the daemon and get a response back */
if (process_tcp_request