sg_get_user_stats, sg_get_user_stats_r, sg_free_user_stats − get the current logged in users
#include <statgrab.h>
sg_user_stats *sg_get_user_stats (size_t *entries);
sg_user_stats *sg_get_user_stats_r (size_t *entries);
sg_error sg_free_user_stats (sg_user_stats *data);
The user statistics module delivers some information about logged on users. Each logon is treated separately. Both statistic get functions, sg_get_user_stats() and sg_get_user_stats_r(), return a vector of sg_user_stats with entries elements.
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API Shortcut |
The sg_user_stats vector received from sg_get_user_stats_r() must be freed using sg_free_user_stats() when not needed any more. The caller is responsible for doing it.
The structure returned is of type sg_user_stats.
typedef struct {
char *login_name;
char *record_id;
size_t record_id_size;
char *device;
char *hostname;
pid_t pid;
time_t login_time;
time_t systime;
} sg_user_stats;
login_name
The username which was used to log in
record_id
Record identifier of host database containing login information (not necessarily 0-terminated)
record_id_size
Size of the record identifier
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device |
Device name (eg. "pts/0") of the tty assigned to the login session |
hostname
(remote) Hostname from where the user is logged on, eg. "infoterm7.some.kind.of.domain.local", "localhost", "10.42.17.4" or ":0.0" (in case it’s a local logon via new xterm)
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pid |
Process identifier of the process which made the entry to the logged on users database |
login_time
Timestamp (time in seconds since epoch) when the user logged on
systime
The timestamp when the above stats where collected in seconds since epoch
statgrab(3)
⟨https://libstatgrab.org/⟩