/**
* Get system local date and time in a foramt suitable for DateAndTime TC:
* field octets contents range
* ----- ------ -------- -----
* 1 1-2 year* 0..65536
* 2 3 month 1..12
* 3 4 day 1..31
* 4 5 hour 0..23
* 5 6 minutes 0..59
* 6 7 seconds 0..60
* (use 60 for leap-second)
* 7 8 deci-seconds 0..9
* 8 9 direction from UTC '+' / '-'
* 9 10 hours from UTC* 0..13
* 10 11 minutes from UTC 0..59
*
* * Notes:
* - the value of year is in network-byte order
* - daylight saving time in New Zealand is +13
*
* For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be
* displayed as:
*
* 1992-5-26,13:30:15.0,-4:0
*
* Returns -1 in case of an error or the length of the string (8 or 11)
* Actually returns always 11 on freebsd
*/
static int
OS_getSystemDate(struct snmp_value *value)
{
u_char s_date_time[11];
struct tm tloc_tm;
time_t tloc_time_t;
struct timeval right_now;
int string_len;
if (gettimeofday(&right_now, NULL) < 0) {
syslog(LOG_ERR, "gettimeofday failed: %m");
return (SNMP_ERR_GENERR);
}
tloc_time_t = right_now.tv_sec;
if (localtime_r(&tloc_time_t, &tloc_tm) == NULL) {
syslog(LOG_ERR, "localtime_r() failed: %m ");
return (SNMP_ERR_GENERR);
}
string_len = make_date_time(s_date_time, &tloc_tm,
right_now.tv_usec / 100000);
return (string_get(value, s_date_time, string_len));
}
/**
* Get the *running* O/S identification
*/
static void
swins_get_OS_ident(void)
{
struct utsname os_id;
char os_string[SW_NAME_MLEN] = "";
struct swins_entry *entry;
u_char *boot;
struct stat sb;
struct tm k_ts;
if (uname(&os_id) == -1) {
syslog(LOG_WARNING, "%s: %m", __func__);
return;
}
snprintf(os_string, sizeof(os_string), "%s: %s",
os_id.sysname, os_id.version);
if ((entry = swins_find_by_name(os_string)) != NULL ||
(entry = swins_entry_create(os_string)) == NULL)
return;
entry->flags |= (HR_SWINSTALLED_FOUND | HR_SWINSTALLED_IMMUTABLE);
entry->id = &oid_zeroDotZero;
entry->type = (int32_t)SWI_OPERATING_SYSTEM;
memset(entry->date, 0, sizeof(entry->date));
if (OS_getSystemInitialLoadParameters(&boot) == SNMP_ERR_NOERROR &&
strlen(boot) > 0 && stat(boot, &sb) == 0 &&
localtime_r(&sb.st_ctime, &k_ts) != NULL)
entry->date_len = make_date_time(entry->date, &k_ts, 0);
}
/**
* Read the installed packages
*/
static int
swins_get_packages(void)
{
struct stat sb;
DIR *p_dir;
struct dirent *ent;
struct tm k_ts;
char *pkg_file;
struct swins_entry *entry;
int ret = 0;
if (pkg_dir == NULL)
/* initialisation may have failed */
return (-1);
if (stat(pkg_dir, &sb) != 0) {
syslog(LOG_ERR, "hrSWInstalledTable: stat(\"%s\") failed: %m",
pkg_dir);
return (-1);
}
if (!S_ISDIR(sb.st_mode)) {
syslog(LOG_ERR, "hrSWInstalledTable: \"%s\" is not a directory",
pkg_dir);
return (-1);
}
if (sb.st_ctime <= os_pkg_last_change) {
HRDBG("no need to rescan installed packages -- "
"directory time-stamp unmodified");
TAILQ_FOREACH(entry, &swins_tbl, link)
entry->flags |= HR_SWINSTALLED_FOUND;
return (0);
}
if ((p_dir = opendir(pkg_dir)) == NULL) {
syslog(LOG_ERR, "hrSWInstalledTable: opendir(\"%s\") failed: "
"%m", pkg_dir);
return (-1);
}
while (errno = 0, (ent = readdir(p_dir)) != NULL) {
HRDBG(" pkg file: %s", ent->d_name);
/* check that the contents file is a regular file */
if (asprintf(&pkg_file, "%s/%s/%s", pkg_dir, ent->d_name,
CONTENTS_FNAME) == -1)
continue;
if (stat(pkg_file, &sb) != 0 ) {
free(pkg_file);
continue;
}
if (!S_ISREG(sb.st_mode)) {
syslog(LOG_ERR, "hrSWInstalledTable: \"%s\" not a "
"regular file -- skipped", pkg_file);
free(pkg_file);
continue;
}
free(pkg_file);
/* read directory timestamp on package */
if (asprintf(&pkg_file, "%s/%s", pkg_dir, ent->d_name) == -1)
continue;
if (stat(pkg_file, &sb) == -1 ||
localtime_r(&sb.st_ctime, &k_ts) == NULL) {
free(pkg_file);
continue;
}
free(pkg_file);
/* update or create entry */
if ((entry = swins_find_by_name(ent->d_name)) == NULL &&
(entry = swins_entry_create(ent->d_name)) == NULL) {
ret = -1;
goto PKG_LOOP_END;
}
entry->flags |= HR_SWINSTALLED_FOUND;
entry->id = &oid_zeroDotZero;
entry->type = (int32_t)SWI_APPLICATION;
entry->date_len = make_date_time(entry->date, &k_ts, 0);
}
if (errno != 0) {
syslog(LOG_ERR, "hrSWInstalledTable: readdir_r(\"%s\") failed:"
" %m", pkg_dir);
ret = -1;
} else {
/*
* save the timestamp of directory
* to avoid any further scanning
*/
os_pkg_last_change = sb.st_ctime;
}
PKG_LOOP_END:
(void)closedir(p_dir);
return (ret);
}
