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Fixup getty, login, etc so the utmp and wtmp are updated, allowing

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the 'who' and 'last' applets among other things to work as expected.
 -Erik
This commit is contained in:
Eric Andersen 2004-07-30 17:24:47 +00:00
parent 15b588559b
commit aad29b37a7
5 changed files with 23 additions and 5 deletions
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1
coreutils/Config.in
View File

@ -538,6 +538,7 @@ config CONFIG_WC
config CONFIG_WHO
bool "who"
default n
select CONFIG_FEATURE_U_W_TMP
help
who is used to show who is logged on.

9
loginutils/Config.in
View File

@ -57,6 +57,15 @@ config CONFIG_GETTY
help
getty lets you log in on a tty, it is normally invoked by init.
config CONFIG_FEATURE_U_W_TMP
bool " Support utmp and wtmp files"
depends on CONFIG_GETTY || CONFIG_LOGIN || CONFIG_SU || CONFIG_WHO || CONFIG_LAST
default n
help
The files /var/run/utmp and /var/run/wtmp can be used to track when
user's have logged into and logged out of the system, allowing programs
such as 'who' and 'last' to list who is currently logged in.
config CONFIG_LOGIN
bool "login"
default n

10
loginutils/getty.c
View File

@ -228,7 +228,7 @@ static void termio_final(struct options *op, struct termio *tp,
struct chardata *cp);
static int caps_lock(const char *s);
static int bcode(const char *s);
static int bcode(char *s);
static void error(const char *fmt, ...) __attribute__ ((noreturn));
#ifdef CONFIG_FEATURE_U_W_TMP
@ -503,6 +503,9 @@ static void update_utmp(char *line)
* utmp file can be opened for update, and if we are able to find our
* entry in the utmp file.
*/
if (access(_PATH_UTMP, R_OK|W_OK) == -1) {
creat(_PATH_UTMP, O_RDWR);
}
utmpname(_PATH_UTMP);
setutent();
while ((utp = getutent())
@ -531,6 +534,9 @@ static void update_utmp(char *line)
endutent();
{
if (access(_PATH_WTMP, R_OK|W_OK) == -1) {
creat(_PATH_WTMP, O_RDWR);
}
updwtmp(_PATH_WTMP, &ut);
}
}
@ -953,7 +959,7 @@ static int caps_lock(const char *s)
}
/* bcode - convert speed string to speed code; return 0 on failure */
static int bcode(const char *s)
static int bcode(char *s)
{
int r;
unsigned long value;

7
loginutils/login.c
View File

@ -403,8 +403,6 @@ static void motd ( )
#ifdef CONFIG_FEATURE_U_W_TMP
// vv Taken from tinylogin utmp.c vv
#define _WTMP_FILE "/var/log/wtmp"
#define NO_UTENT \
"No utmp entry. You must exec \"login\" from the lowest level \"sh\""
#define NO_TTY \
@ -480,6 +478,9 @@ static void setutmp(const char *name, const char *line)
setutent();
pututline(&utent);
endutent();
updwtmp(_WTMP_FILE, &utent);
if (access(_PATH_WTMP, R_OK|W_OK) == -1) {
creat(_PATH_WTMP, O_RDWR);
}
updwtmp(_PATH_WTMP, &utent);
}
#endif /* CONFIG_FEATURE_U_W_TMP */

1
miscutils/Config.in
View File

@ -83,6 +83,7 @@ config CONFIG_DEVFSD_VERBOSE
config CONFIG_LAST
bool "last"
default n
select CONFIG_FEATURE_U_W_TMP
help
'last' displays a list of the last users that logged into the system.