[svn-upgrade] Integrating new upstream version, shadow (4.0.7)
This commit is contained in:
nekral-guest
355
src/faillog.c
355
src/faillog.c
@@ -30,16 +30,16 @@
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#include <config.h>
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#include "rcsid.h"
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RCSID (PKG_VER "$Id: faillog.c,v 1.12 2003/04/25 22:32:36 kloczek Exp $")
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RCSID (PKG_VER "$Id: faillog.c,v 1.17 2005/01/02 06:36:48 kloczek Exp $")
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <pwd.h>
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#include <time.h>
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#include <getopt.h>
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#include "prototypes.h"
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#include "defines.h"
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#include "faillog.h"
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static char *Prog; /* program name */
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static FILE *fail; /* failure file stream */
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static uid_t user; /* one single user, specified on command line */
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static int days; /* number of days to consider for print command */
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@@ -47,155 +47,29 @@ static time_t seconds; /* that number of days in seconds */
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static int
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aflg = 0, /* set if all users are to be printed always */
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uflg = 0, /* set if user is a valid user id */
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tflg = 0; /* print is restricted to most recent days */
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uflg = 0, /* set if user is a valid user id */
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tflg = 0; /* print is restricted to most recent days */
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static struct stat statbuf; /* fstat buffer for file size */
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#if !defined(UNISTD_H) && !defined(STDLIB_H)
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extern char *optarg;
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#endif
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#define NOW (time((time_t *) 0))
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/* local function prototypes */
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static void usage (void);
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static void print (void);
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static void print_one (const struct faillog *, uid_t);
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static void reset (void);
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static int reset_one (uid_t);
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static void setmax (int);
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static void setmax_one (uid_t, int);
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static void set_locktime (long);
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static void set_locktime_one (uid_t, long);
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static void usage (void)
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{
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fprintf (stderr,
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_
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("Usage: %s [-a|-u user] [-m max] [-r] [-t days] [-l locksecs]\n"),
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Prog);
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fprintf (stderr, _("Usage: faillog [options]\n"
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"\n"
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"Options:\n"
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" -a, --all display faillog records for all users\n"
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" -h, --help display this help message and exit\n"
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" -l, --lock-time SEC after failed login lock accout to SEC seconds\n"
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" -m, --maximum MAX set maiximum failed login counters to MAX\n"
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" -r, --reset reset the counters of login failures\n"
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" -u, --user LOGIN display faillog record or maintains failure counters\n"
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" and limits (if used with -r, -m or -l options) only\n"
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" for user with LOGIN\n"));
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exit (1);
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}
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int main (int argc, char **argv)
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{
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int c, anyflag = 0;
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struct passwd *pwent;
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Prog = Basename (argv[0]);
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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/* try to open for read/write, if that fails - read only */
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fail = fopen (FAILLOG_FILE, "r+");
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if (!fail)
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fail = fopen (FAILLOG_FILE, "r");
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if (!fail) {
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perror (FAILLOG_FILE);
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exit (1);
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}
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while ((c = getopt (argc, argv, "al:m:pru:t:")) != EOF) {
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switch (c) {
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case 'a':
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aflg++;
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if (uflg)
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usage ();
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break;
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case 'l':
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set_locktime ((long) atoi (optarg));
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anyflag++;
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break;
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case 'm':
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setmax (atoi (optarg));
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anyflag++;
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break;
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case 'p':
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print ();
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anyflag++;
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break;
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case 'r':
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reset ();
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anyflag++;
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break;
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case 'u':
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if (aflg)
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usage ();
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pwent = getpwnam (optarg);
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if (!pwent) {
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fprintf (stderr, _("Unknown User: %s\n"),
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optarg);
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exit (1);
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}
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uflg++;
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user = pwent->pw_uid;
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break;
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case 't':
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days = atoi (optarg);
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seconds = days * DAY;
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tflg++;
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break;
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default:
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usage ();
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}
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}
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/* no flags implies -a -p (= print information for all users) */
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if (!(anyflag || aflg || tflg || uflg))
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aflg++;
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/* (-a or -t days or -u user) and no other flags implies -p
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(= print information for selected users) */
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if (!anyflag && (aflg || tflg || uflg))
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print ();
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fclose (fail);
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return 0;
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/*NOTREACHED*/}
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static void print (void)
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{
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uid_t uid;
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off_t offset;
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struct faillog faillog;
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if (uflg) {
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offset = user * sizeof faillog;
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if (fstat (fileno (fail), &statbuf)) {
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perror (FAILLOG_FILE);
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return;
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}
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if (offset >= statbuf.st_size)
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return;
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fseek (fail, (off_t) user * sizeof faillog, SEEK_SET);
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if (fread ((char *) &faillog, sizeof faillog, 1, fail) ==
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1)
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print_one (&faillog, user);
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else
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perror (FAILLOG_FILE);
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} else {
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for (uid = 0;
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fread ((char *) &faillog, sizeof faillog, 1,
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fail) == 1; uid++) {
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if (aflg == 0 && faillog.fail_cnt == 0)
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continue;
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if (aflg == 0 && tflg &&
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NOW - faillog.fail_time > seconds)
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continue;
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if (aflg && faillog.fail_time == 0)
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continue;
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print_one (&faillog, uid);
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}
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}
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}
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static void print_one (const struct faillog *fl, uid_t uid)
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{
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static int once;
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@@ -242,16 +116,6 @@ static void print_one (const struct faillog *fl, uid_t uid)
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}
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}
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static void reset (void)
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{
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uid_t uid;
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if (uflg)
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reset_one (user);
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else
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for (uid = 0; reset_one (uid); uid++);
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}
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static int reset_one (uid_t uid)
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{
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off_t offset;
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@@ -265,7 +129,7 @@ static int reset_one (uid_t uid)
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if (offset >= statbuf.st_size)
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return 0;
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if (fseek (fail, offset, SEEK_SET) != 0) {
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if (fseeko (fail, offset, SEEK_SET) != 0) {
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perror (FAILLOG_FILE);
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return 0;
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}
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@@ -280,7 +144,7 @@ static int reset_one (uid_t uid)
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faillog.fail_cnt = 0;
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if (fseek (fail, offset, SEEK_SET) == 0
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if (fseeko (fail, offset, SEEK_SET) == 0
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&& fwrite ((char *) &faillog, sizeof faillog, 1, fail) == 1) {
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fflush (fail);
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return 1;
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@@ -290,6 +154,82 @@ static int reset_one (uid_t uid)
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return 0;
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}
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static void reset (void)
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{
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uid_t uid;
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if (uflg)
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reset_one (user);
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else
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for (uid = 0; reset_one (uid); uid++);
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}
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static void print (void)
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{
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uid_t uid;
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off_t offset;
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struct faillog faillog;
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if (uflg) {
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offset = user * sizeof faillog;
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if (fstat (fileno (fail), &statbuf)) {
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perror (FAILLOG_FILE);
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return;
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}
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if (offset >= statbuf.st_size)
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return;
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fseeko (fail, (off_t) user * sizeof faillog, SEEK_SET);
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if (fread ((char *) &faillog, sizeof faillog, 1, fail) ==
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1)
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print_one (&faillog, user);
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else
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perror (FAILLOG_FILE);
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} else {
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for (uid = 0;
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fread ((char *) &faillog, sizeof faillog, 1,
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fail) == 1; uid++) {
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if (aflg == 0 && faillog.fail_cnt == 0)
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continue;
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if (aflg == 0 && tflg &&
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NOW - faillog.fail_time > seconds)
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continue;
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if (aflg && faillog.fail_time == 0)
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continue;
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print_one (&faillog, uid);
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}
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}
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}
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static void setmax_one (uid_t uid, int max)
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{
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off_t offset;
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struct faillog faillog;
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offset = uid * sizeof faillog;
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if (fseeko (fail, offset, SEEK_SET) != 0) {
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perror (FAILLOG_FILE);
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return;
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}
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if (fread ((char *) &faillog, sizeof faillog, 1, fail) != 1) {
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if (!feof (fail))
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perror (FAILLOG_FILE);
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memzero (&faillog, sizeof faillog);
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}
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faillog.fail_max = max;
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if (fseeko (fail, offset, SEEK_SET) == 0
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&& fwrite ((char *) &faillog, sizeof faillog, 1, fail) == 1)
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fflush (fail);
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else
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perror (FAILLOG_FILE);
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}
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static void setmax (int max)
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{
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struct passwd *pwent;
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@@ -303,14 +243,14 @@ static void setmax (int max)
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}
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}
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static void setmax_one (uid_t uid, int max)
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static void set_locktime_one (uid_t uid, long locktime)
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{
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off_t offset;
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struct faillog faillog;
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offset = uid * sizeof faillog;
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if (fseek (fail, offset, SEEK_SET) != 0) {
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if (fseeko (fail, offset, SEEK_SET) != 0) {
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perror (FAILLOG_FILE);
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return;
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}
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@@ -319,9 +259,9 @@ static void setmax_one (uid_t uid, int max)
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perror (FAILLOG_FILE);
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memzero (&faillog, sizeof faillog);
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}
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faillog.fail_max = max;
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faillog.fail_locktime = locktime;
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if (fseek (fail, offset, SEEK_SET) == 0
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if (fseeko (fail, offset, SEEK_SET) == 0
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&& fwrite ((char *) &faillog, sizeof faillog, 1, fail) == 1)
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fflush (fail);
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else
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@@ -345,27 +285,94 @@ static void set_locktime (long locktime)
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}
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}
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static void set_locktime_one (uid_t uid, long locktime)
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int main (int argc, char **argv)
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{
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off_t offset;
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struct faillog faillog;
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int anyflag = 0;
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struct passwd *pwent;
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offset = uid * sizeof faillog;
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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if (fseek (fail, offset, SEEK_SET) != 0) {
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/* try to open for read/write, if that fails - read only */
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fail = fopen (FAILLOG_FILE, "r+");
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if (!fail)
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fail = fopen (FAILLOG_FILE, "r");
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if (!fail) {
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perror (FAILLOG_FILE);
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return;
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exit (1);
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}
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if (fread ((char *) &faillog, sizeof faillog, 1, fail) != 1) {
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if (!feof (fail))
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perror (FAILLOG_FILE);
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memzero (&faillog, sizeof faillog);
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}
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faillog.fail_locktime = locktime;
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if (fseek (fail, offset, SEEK_SET) == 0
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&& fwrite ((char *) &faillog, sizeof faillog, 1, fail) == 1)
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fflush (fail);
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else
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perror (FAILLOG_FILE);
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{
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int option_index = 0;
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int c;
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static struct option long_options[] = {
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{"help", no_argument, NULL, 'h'},
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{"lock-secs", no_argument, NULL, 'l'},
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{"maximum", no_argument, NULL, 'm'},
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{"reset", no_argument, NULL, 'r'},
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{"user", no_argument, NULL, 'u'},
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{"", no_argument, NULL, 't'},
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{NULL, 0, NULL, '\0'}
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};
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while ((c =
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getopt_long (argc, argv, "ahl:m:rt:u:",
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long_options, &option_index)) != -1) {
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switch (c) {
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case 'a':
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aflg++;
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if (uflg)
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usage ();
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break;
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case 'l':
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set_locktime ((long) atoi (optarg));
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anyflag++;
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break;
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case 'm':
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setmax (atoi (optarg));
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anyflag++;
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break;
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case 'p':
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print ();
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anyflag++;
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break;
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case 'r':
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reset ();
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anyflag++;
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break;
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case 'u':
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if (aflg)
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usage ();
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pwent = getpwnam (optarg);
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if (!pwent) {
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fprintf (stderr, _("Unknown User: %s\n"),
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optarg);
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exit (1);
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}
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uflg++;
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user = pwent->pw_uid;
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break;
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case 't':
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days = atoi (optarg);
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seconds = days * DAY;
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tflg++;
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break;
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default:
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usage ();
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}
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}
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}
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/* no flags implies -a -p (= print information for all users) */
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if (!(anyflag || aflg || tflg || uflg))
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aflg++;
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/* (-a or -t days or -u user) and no other flags implies -p
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(= print information for selected users) */
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if (!anyflag && (aflg || tflg || uflg))
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print ();
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fclose (fail);
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return 0;
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}
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Block a user