/* Search utmp for the local user */
int
find_user (char *name, char *tty)
{
STRUCT_UTMP *utmpbuf, *uptr;
size_t utmp_count;
int status;
struct stat statb;
char ftty[sizeof (PATH_DEV) + sizeof (uptr->ut_line)];
time_t last_time = 0;
int notty;
notty = (*tty == '\0');
status = NOT_HERE;
strcpy (ftty, PATH_DEV);
read_utmp (PATH_UTMP, &utmp_count, &utmpbuf,
READ_UTMP_USER_PROCESS | READ_UTMP_CHECK_PIDS);
for (uptr = utmpbuf; uptr < utmpbuf + utmp_count; uptr++)
{
if (!strncmp (UT_USER (uptr), name, sizeof (UT_USER (uptr))))
{
if (notty)
{
/* no particular tty was requested */
strncpy (ftty + sizeof (PATH_DEV) - 1,
uptr->ut_line, sizeof (ftty) - sizeof (PATH_DEV) - 1);
ftty[sizeof (ftty) - 1] = 0;
if (stat (ftty, &statb) == 0)
{
if (!(statb.st_mode & S_IWGRP))
{
if (status != SUCCESS)
status = PERMISSION_DENIED;
continue;
}
if (statb.st_atime > last_time)
{
last_time = statb.st_atime;
strcpy (tty, uptr->ut_line);
status = SUCCESS;
}
continue;
}
}
if (!strcmp (uptr->ut_line, tty))
{
status = SUCCESS;
break;
}
}
}
free (utmpbuf);
return status;
}
char *
extract_trimmed_name (const STRUCT_UTMP *ut)
{
char *p, *trimmed_name;
trimmed_name = xmalloc (sizeof (UT_USER (ut)) + 1);
strncpy (trimmed_name, UT_USER (ut), sizeof (UT_USER (ut)));
/* Append a trailing NUL. Some systems pad names shorter than the
maximum with spaces, others pad with NULs. Remove any trailing
spaces. */
trimmed_name[sizeof (UT_USER (ut))] = '\0';
for (p = trimmed_name + strlen (trimmed_name);
trimmed_name < p && p[-1] == ' ';
*--p = '\0')
continue;
return trimmed_name;
}
void
wtmpxrawdump (const char *wtmpfile, const char *user)
{
STRUCT_UTMP *utp;
struct in_addr addr;
char *addr_string, *time_string;
if (access (wtmpfile, R_OK))
die (errno, "cannot access the file");
/* Ignore the return value for now.
Solaris' utmpname returns 1 upon success -- which is contrary
to what the GNU libc version does. In addition, older GNU libc
versions are actually void. */
UTMP_NAME_FUNCTION (wtmpfile);
SET_UTMP_ENT ();
while ((utp = GET_UTMP_ENT ()) != NULL)
{
if (user && strncmp (UT_USER (utp), user, sizeof (UT_USER (utp))))
continue;
/* FIXME: missing support for IPv6 */
#ifdef HAVE_UTP_UT_ADDR_V6
addr.s_addr = utp->ut_addr_v6[0];
#endif
addr_string = inet_ntoa (addr);
time_string = timetostr (UT_TIME_MEMBER (utp));
switch (utp->ut_type)
{
default:
/* Note: also catch EMPTY/UT_UNKNOWN values */
printf ("%-9s", "NONE");
break;
#ifdef RUN_LVL
/* Undefined on AIX if _ALL_SOURCE is false */
case RUN_LVL:
printf ("%-9s", "RUNLEVEL");
break;
#endif
case BOOT_TIME:
printf ("%-9s", "REBOOT");
break;
case OLD_TIME:
case NEW_TIME:
/* FIXME */
break;
case INIT_PROCESS:
printf ("%-9s", "INIT");
break;
case LOGIN_PROCESS:
printf ("%-9s", "LOGIN");
break;
case USER_PROCESS:
printf ("%-9.*s", sizeof (UT_USER (utp)), UT_USER (utp));
break;
case DEAD_PROCESS:
printf ("%-9s", "DEAD");
break;
#ifdef ACCOUNTING
/* Undefined on AIX if _ALL_SOURCE is false */
case ACCOUNTING:
printf ("%-9s", "ACCOUNT");
break;
#endif
}
/* pid */
UT_PID (utp) ? printf ("[%05d]", UT_PID (utp)) : printf ("[%5s]",
"-");
/* line id host addr date&time */
printf
(" [%-12.*s] [%-4.*s] [%-19.*s] [%-15.15s] [%-19.19s]\n",
sizeof (utp->ut_line), utp->ut_line,
sizeof (utp->ut_id), utp->ut_id,
sizeof (utp->ut_host), utp->ut_host, addr_string, time_string);
}
END_UTMP_ENT ();
}