|
 |
321543 |
From d4a05cc653c9e251a04afa9bd4f5a75777029445 Mon Sep 17 00:00:00 2001
|
|
|
321543 |
From: Karel Zak <kzak@redhat.com>
|
|
|
321543 |
Date: Thu, 2 Feb 2023 15:46:43 +0100
|
|
|
321543 |
Subject: last: use snprintf() rather than sprintf()
|
|
|
321543 |
|
|
|
321543 |
Signed-off-by: Karel Zak <kzak@redhat.com>
|
|
|
321543 |
Upstream: http://github.com/util-linux/util-linux/commit/79fb7e18f45e84c6f1a030b5df56cb2bdad26df0
|
|
|
321543 |
Upstream: http://github.com/util-linux/util-linux/commit/6cd0043221b31a344db8f5dcb82822a2519a2e74
|
|
|
321543 |
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2166653
|
|
|
321543 |
---
|
|
|
321543 |
login-utils/last.c | 38 +++++++++++++++++++-------------------
|
|
|
321543 |
1 file changed, 19 insertions(+), 19 deletions(-)
|
|
|
321543 |
|
|
|
321543 |
diff --git a/login-utils/last.c b/login-utils/last.c
|
|
|
321543 |
index f3272caeb..7f4421c89 100644
|
|
|
321543 |
--- a/login-utils/last.c
|
|
|
321543 |
+++ b/login-utils/last.c
|
|
|
321543 |
@@ -463,48 +463,48 @@ static int list(const struct last_control *ctl, struct utmpx *p, time_t logout_t
|
|
|
321543 |
|
|
|
321543 |
if (logout_time == currentdate) {
|
|
|
321543 |
if (ctl->time_fmt > LAST_TIMEFTM_SHORT) {
|
|
|
321543 |
- sprintf(logouttime, " still running");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), " still running");
|
|
|
321543 |
length[0] = 0;
|
|
|
321543 |
} else {
|
|
|
321543 |
- sprintf(logouttime, " still");
|
|
|
321543 |
- sprintf(length, "running");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), " still");
|
|
|
321543 |
+ snprintf(length, sizeof(length), "running");
|
|
|
321543 |
}
|
|
|
321543 |
} else if (days) {
|
|
|
321543 |
- sprintf(length, "(%d+%02d:%02d)", days, abs(hours), abs(mins)); /* hours and mins always shown as positive (w/o minus sign!) even if secs < 0 */
|
|
|
321543 |
+ snprintf(length, sizeof(length), "(%d+%02d:%02d)", days, abs(hours), abs(mins)); /* hours and mins always shown as positive (w/o minus sign!) even if secs < 0 */
|
|
|
321543 |
} else if (hours) {
|
|
|
321543 |
- sprintf(length, " (%02d:%02d)", hours, abs(mins)); /* mins always shown as positive (w/o minus sign!) even if secs < 0 */
|
|
|
321543 |
+ snprintf(length, sizeof(length), " (%02d:%02d)", hours, abs(mins)); /* mins always shown as positive (w/o minus sign!) even if secs < 0 */
|
|
|
321543 |
} else if (secs >= 0) {
|
|
|
321543 |
- sprintf(length, " (%02d:%02d)", hours, mins);
|
|
|
321543 |
+ snprintf(length, sizeof(length), " (%02d:%02d)", hours, mins);
|
|
|
321543 |
} else {
|
|
|
321543 |
- sprintf(length, " (-00:%02d)", abs(mins)); /* mins always shown as positive (w/o minus sign!) even if secs < 0 */
|
|
|
321543 |
+ snprintf(length, sizeof(length), " (-00:%02d)", abs(mins)); /* mins always shown as positive (w/o minus sign!) even if secs < 0 */
|
|
|
321543 |
}
|
|
|
321543 |
|
|
|
321543 |
switch(what) {
|
|
|
321543 |
case R_CRASH:
|
|
|
321543 |
- sprintf(logouttime, "- crash");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), "- crash");
|
|
|
321543 |
break;
|
|
|
321543 |
case R_DOWN:
|
|
|
321543 |
- sprintf(logouttime, "- down ");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), "- down ");
|
|
|
321543 |
break;
|
|
|
321543 |
case R_NOW:
|
|
|
321543 |
if (ctl->time_fmt > LAST_TIMEFTM_SHORT) {
|
|
|
321543 |
- sprintf(logouttime, " still logged in");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), " still logged in");
|
|
|
321543 |
length[0] = 0;
|
|
|
321543 |
} else {
|
|
|
321543 |
- sprintf(logouttime, " still");
|
|
|
321543 |
- sprintf(length, "logged in");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), " still");
|
|
|
321543 |
+ snprintf(length, sizeof(length), "logged in");
|
|
|
321543 |
}
|
|
|
321543 |
break;
|
|
|
321543 |
case R_PHANTOM:
|
|
|
321543 |
if (ctl->time_fmt > LAST_TIMEFTM_SHORT) {
|
|
|
321543 |
- sprintf(logouttime, " gone - no logout");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), " gone - no logout");
|
|
|
321543 |
length[0] = 0;
|
|
|
321543 |
} else if (ctl->time_fmt == LAST_TIMEFTM_SHORT) {
|
|
|
321543 |
- sprintf(logouttime, " gone");
|
|
|
321543 |
- sprintf(length, "- no logout");
|
|
|
321543 |
+ snprintf(logouttime, sizeof(logouttime), " gone");
|
|
|
321543 |
+ snprintf(length, sizeof(length), "- no logout");
|
|
|
321543 |
} else {
|
|
|
321543 |
logouttime[0] = 0;
|
|
|
321543 |
- sprintf(length, "no logout");
|
|
|
321543 |
+ snprintf(length, sizeof(length), "no logout");
|
|
|
321543 |
}
|
|
|
321543 |
break;
|
|
|
321543 |
case R_TIMECHANGE:
|
|
|
321543 |
@@ -756,7 +756,7 @@ static void process_wtmp_file(const struct last_control *ctl,
|
|
|
321543 |
else {
|
|
|
321543 |
if (ut.ut_type != DEAD_PROCESS &&
|
|
|
321543 |
ut.ut_user[0] && ut.ut_line[0] &&
|
|
|
321543 |
- strcmp(ut.ut_user, "LOGIN") != 0)
|
|
|
321543 |
+ strncmp(ut.ut_user, "LOGIN", 5) != 0)
|
|
|
321543 |
ut.ut_type = USER_PROCESS;
|
|
|
321543 |
/*
|
|
|
321543 |
* Even worse, applications that write ghost
|
|
|
321543 |
@@ -769,7 +769,7 @@ static void process_wtmp_file(const struct last_control *ctl,
|
|
|
321543 |
/*
|
|
|
321543 |
* Clock changes.
|
|
|
321543 |
*/
|
|
|
321543 |
- if (strcmp(ut.ut_user, "date") == 0) {
|
|
|
321543 |
+ if (strncmp(ut.ut_user, "date", 4) == 0) {
|
|
|
321543 |
if (ut.ut_line[0] == '|')
|
|
|
321543 |
ut.ut_type = OLD_TIME;
|
|
|
321543 |
if (ut.ut_line[0] == '{')
|
|
|
321543 |
@@ -804,7 +804,7 @@ static void process_wtmp_file(const struct last_control *ctl,
|
|
|
321543 |
case RUN_LVL:
|
|
|
321543 |
x = ut.ut_pid & 255;
|
|
|
321543 |
if (ctl->extended) {
|
|
|
321543 |
- sprintf(ut.ut_line, "(to lvl %c)", x);
|
|
|
321543 |
+ snprintf(ut.ut_line, sizeof(ut.ut_line), "(to lvl %c)", x);
|
|
|
321543 |
quit = list(ctl, &ut, lastrch, R_NORMAL);
|
|
|
321543 |
}
|
|
|
321543 |
if (x == '0' || x == '6') {
|
|
|
321543 |
--
|
|
|
321543 |
2.39.1
|
|
|
321543 |
|