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authorMiles Bader <miles@gnu.org>1996-07-06 03:57:56 +0000
committerMiles Bader <miles@gnu.org>1996-07-06 03:57:56 +0000
commit2549e7587d7583704a338533cdc3892eece55ab0 (patch)
tree174cfa230c0becd7dcaa91ff7f372f64533e7432 /login
parent36abf0d831de627092222bda744ef9887ada1cb3 (diff)
Fri Jul 5 17:34:47 1996 Miles Bader <miles@gnu.ai.mit.edu>cvs/libc-960706
* login/logout.c (logout): Do nothing if getutline_r returns ESRCH. * login/pututline_r.c (pututline_r): Since we assign RESULT from lseek now, check that it's >= 0, not == 0. Wed Jul 3 13:28:04 1996 Miles Bader <miles@gnu.ai.mit.edu> * login/login.c (login): Make a copy of *UT, fill in various fields that we supply (ut_line, ut_type, ut_pid), and use the copy in place of UT. * login/getutline_r.c (getutline_r): When we return ESRCH, mark UTMP_DATA->ubuf invalid (by setting UTMP_DATA->loc_utmp to 0).
Diffstat (limited to 'login')
-rw-r--r--login/login.c35
-rw-r--r--login/logout.c2
2 files changed, 20 insertions, 17 deletions
diff --git a/login/login.c b/login/login.c
index bbd3be92ce..76f27a0875 100644
--- a/login/login.c
+++ b/login/login.c
@@ -87,6 +87,13 @@ login (const struct utmp *ut)
int found_tty;
const char *ttyp;
struct utmp_data data = { -1 };
+ struct utmp copy = *ut;
+
+ /* Fill in those fields we supply. */
+#if _HAVE_UT_TYPE - 0
+ copy.ut_type = USER_PROCESS;
+#endif
+ copy.ut_pid = getpid ();
/* Seek tty. */
found_tty = tty_name (STDIN_FILENO, &tty, sizeof (_tty));
@@ -97,39 +104,35 @@ login (const struct utmp *ut)
if (found_tty >= 0)
{
+ /* We only want to insert the name of the tty without path. */
+ ttyp = basename (tty);
+
+ /* Position to record for this tty. */
+ strncpy (copy.ut_line, ttyp, UT_LINESIZE);
+
/* Tell that we want to use the UTMP file. */
if (utmpname (_PATH_UTMP) != 0)
{
- struct utmp tmp;
struct utmp *old;
/* Open UTMP file. */
setutent_r (&data);
- /* We only want to insert the name of the tty without path. */
- ttyp = basename (tty);
-
- /* Position to record for this tty. */
-#if _HAVE_UT_TYPE - 0
- tmp.ut_type = USER_PROCESS;
-#endif
- strncpy (tmp.ut_line, ttyp, UT_LINESIZE);
-
/* Read the record. */
- if (getutline_r (&tmp, &old, &data) >= 0)
+ if (getutline_r (&copy, &old, &data) >= 0)
{
#if _HAVE_UT_TYPE - 0
/* We have to fake the old entry because this `login'
function does not fit well into the UTMP file
handling scheme. */
- old->ut_type = ut->ut_type;
+ old->ut_type = copy.ut_type;
#endif
- pututline_r (ut, &data);
+ pututline_r (&copy, &data);
}
else if (errno == ESRCH)
/* We didn't find anything. pututline_r will add UT at the end
of the file in this case. */
- pututline_r (ut, &data);
+ pututline_r (&copy, &data);
/* Close UTMP file. */
endutent_r (&data);
@@ -153,9 +156,9 @@ login (const struct utmp *ut)
/* We have to fake the old entry because this `login'
function does not fit well into the UTMP file handling
scheme. */
- data.ubuf.ut_type = ut->ut_type;
+ data.ubuf.ut_type = copy.ut_type;
#endif
- pututline_r (ut, &data);
+ pututline_r (&copy, &data);
}
/* Close WTMP file. */
diff --git a/login/logout.c b/login/logout.c
index 1b8dc317ff..bf45451eef 100644
--- a/login/logout.c
+++ b/login/logout.c
@@ -44,7 +44,7 @@ logout (const char *line)
strncpy (tmp.ut_line, line, sizeof tmp.ut_line);
/* Read the record. */
- if (getutline_r (&tmp, &ut, &data) >= 0 || errno == ESRCH)
+ if (getutline_r (&tmp, &ut, &data) >= 0)
{
/* Clear information about who & from where. */
bzero (ut->ut_name, sizeof ut->ut_name);