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Merge Debian's patch 412_lastlog_-u_numerical_range

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* NEWS, src/lastlog.c, man/lastlog.8.xml: Accept numerical user, or
  ranges with the -u option.
* TODO: The same change should be done on faillog.
This commit is contained in:
nekral-guest
2007-12-26 21:54:04 +00:00
parent fd970ab62c
commit 3a48f0954c
5 changed files with 70 additions and 40 deletions
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74
src/lastlog.c
View File

@ -50,14 +50,15 @@
* Global variables
*/
static FILE *lastlogfile; /* lastlog file stream */
static off_t user; /* one single user, specified on command line */
static long umin; /* if uflg, only display users with uid >= umin */
static long umax; /* if uflg, only display users with uid <= umax */
static int days; /* number of days to consider for print command */
static time_t seconds; /* that number of days in seconds */
static int inverse_days; /* number of days to consider for print command */
static time_t inverse_seconds; /* that number of days in seconds */
static int uflg = 0; /* set if user is a valid user id */
static int uflg = 0; /* print only an user of range of users */
static int tflg = 0; /* print is restricted to most recent days */
static int bflg = 0; /* print excludes most recent days */
static struct lastlog lastlog; /* scratch structure to play with ... */
@ -127,26 +128,14 @@ static void print (void)
{
off_t offset;
if (uflg) {
offset = user * sizeof lastlog;
if (fstat (fileno (lastlogfile), &statbuf)) {
perror (LASTLOG_FILE);
return;
}
if (offset >= statbuf.st_size)
return;
fseeko (lastlogfile, offset, SEEK_SET);
if (fread ((char *) &lastlog, sizeof lastlog, 1,
lastlogfile) == 1)
print_one (pwent);
else
perror (LASTLOG_FILE);
} else {
{
setpwent ();
while ((pwent = getpwent ())) {
user = pwent->pw_uid;
if (uflg &&
((umin != -1 && user < umin) ||
(umax != -1 && user > umax)))
continue;
offset = user * sizeof lastlog;
fseeko (lastlogfile, offset, SEEK_SET);
@ -199,15 +188,46 @@ int main (int argc, char **argv)
bflg++;
break;
case 'u':
pwent = xgetpwnam (optarg);
if (!pwent) {
fprintf (stderr,
_("Unknown User: %s\n"),
optarg);
exit (1);
}
/*
* The user can be:
* - a login name
* - numerical
* - a numerical login ID
* - a range (-x, x-, x-y)
*/
uflg++;
user = pwent->pw_uid;
pwent = xgetpwnam (optarg);
if (NULL != pwent) {
umin = pwent->pw_uid;
umax = umin;
} else {
char *endptr = NULL;
user = strtol(optarg, &endptr, 10);
if (*optarg != '\0' && *endptr == '\0') {
if (user < 0) {
/* -<userid> */
umin = -1;
umax = -user;
} else {
/* <userid> */
umin = user;
umax = user;
}
} else if (endptr[0] == '-' && endptr[1] == '\0') {
/* <userid>- */
umin = user;
umax = -1;
} else if (*endptr == '-') {
/* <userid>-<userid> */
umin = user;
umax = atol(endptr+1);
} else {
fprintf (stderr,
_("Unknown user or range: %s\n"),
optarg);
exit (1);
}
}
break;
default:
usage ();