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uptime: Check the return value of various functions.

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Qualys Security Advisory 1970-01-01 00:00:00 +00:00 committed by Craig Small
parent b51ca2a1f8
commit 2fc42db322
1 changed files with 6 additions and 3 deletions
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9
uptime.c
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@ -39,15 +39,18 @@ static void print_uptime_since()
struct timeval tim; struct timeval tim;
/* Get the current time and convert it to a double */ /* Get the current time and convert it to a double */
gettimeofday(&tim, NULL); if (gettimeofday(&tim, NULL) != 0)
xerr(EXIT_FAILURE, "gettimeofday");
now = tim.tv_sec + (tim.tv_usec / 1000000.0); now = tim.tv_sec + (tim.tv_usec / 1000000.0);
/* Get the uptime and calculate when that was */ /* Get the uptime and calculate when that was */
uptime(&uptime_secs, &idle_secs); if (uptime(&uptime_secs, &idle_secs) == 0)
xerrx(EXIT_FAILURE, "uptime");
up_since_secs = (time_t) ((now - uptime_secs) + 0.5); up_since_secs = (time_t) ((now - uptime_secs) + 0.5);
/* Show this */ /* Show this */
up_since = localtime(&up_since_secs); if ((up_since = localtime(&up_since_secs)) == NULL)
xerrx(EXIT_FAILURE, "localtime");
printf("%04d-%02d-%02d %02d:%02d:%02d\n", printf("%04d-%02d-%02d %02d:%02d:%02d\n",
up_since->tm_year + 1900, up_since->tm_mon + 1, up_since->tm_mday, up_since->tm_year + 1900, up_since->tm_mon + 1, up_since->tm_mday,
up_since->tm_hour, up_since->tm_min, up_since->tm_sec); up_since->tm_hour, up_since->tm_min, up_since->tm_sec);