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authorMiles Bader <miles@gnu.org>1997-03-02 04:15:21 +0000
committerMiles Bader <miles@gnu.org>1997-03-02 04:15:21 +0000
commitced858d05f9514a0082f661aae29ba592aae28fb (patch)
tree41d806adb28ed8658b3efc9828e7471d40c9574f /login/utmp_file.c
parentceb2d9aaa86cc3d3d4accc294751c98d49bdc5c2 (diff)
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(proc_utmp_eq): New function. (pututline_file): Correctly decide whether LAST_ENTRY matches DATA. Don't depend on ut_id ever being set. (internal_getut_r): Renamed from internal_getutid_r. Use proc_utmp_eq.
Diffstat (limited to 'login/utmp_file.c')
-rw-r--r--login/utmp_file.c54
1 files changed, 32 insertions, 22 deletions
diff --git a/login/utmp_file.c b/login/utmp_file.c
index 102eba0..ad65ec1 100644
--- a/login/utmp_file.c
+++ b/login/utmp_file.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>
and Paul Janzen <pcj@primenet.com>, 1996.
@@ -210,7 +210,26 @@ getutline_r_file (const struct utmp *line, struct utmp *buffer,
static int
-internal_getutid_r (const struct utmp *id, struct utmp *buffer)
+proc_utmp_eq (const struct utmp *entry, const struct utmp *match)
+{
+ return
+ ((entry->ut_type == INIT_PROCESS
+ || entry->ut_type == LOGIN_PROCESS
+ || entry->ut_type == USER_PROCESS
+ || entry->ut_type == DEAD_PROCESS)
+ &&
+ (match->ut_type == INIT_PROCESS
+ || match->ut_type == LOGIN_PROCESS
+ || match->ut_type == USER_PROCESS
+ || match->ut_type == DEAD_PROCESS)
+ &&
+ (entry->ut_id && match->ut_id
+ ? strncmp (entry->ut_id, match->ut_id, sizeof match->ut_id) == 0
+ : strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0));
+}
+
+static int
+internal_getut_r (const struct utmp *id, struct utmp *buffer)
{
if (id->ut_type == RUN_LVL || id->ut_type == BOOT_TIME
|| id->ut_type == OLD_TIME || id->ut_type == NEW_TIME)
@@ -251,11 +270,7 @@ internal_getutid_r (const struct utmp *id, struct utmp *buffer)
}
file_offset += sizeof (struct utmp);
- if (( buffer->ut_type == INIT_PROCESS
- || buffer->ut_type == LOGIN_PROCESS
- || buffer->ut_type == USER_PROCESS
- || buffer->ut_type == DEAD_PROCESS)
- && strncmp (buffer->ut_id, id->ut_id, sizeof id->ut_id) == 0)
+ if (proc_utmp_eq (&buffer, id))
break;
}
}
@@ -276,7 +291,7 @@ getutid_r_file (const struct utmp *id, struct utmp *buffer,
return -1;
}
- if (internal_getutid_r (id, &last_entry) < 0)
+ if (internal_getut_r (id, &last_entry) < 0)
{
*result = NULL;
return -1;
@@ -306,21 +321,16 @@ pututline_file (const struct utmp *data)
setutent_file (0);
/* Find the correct place to insert the data. */
- if (file_offset > 0)
- found = 0;
+ if (file_offset > 0
+ && ((last_entry.ut_type == data->ut_type
+ && (last_entry.ut_type == RUN_LVL
+ || last_entry.ut_type == BOOT_TIME
+ || last_entry.ut_type == OLD_TIME
+ || last_entry.ut_type == NEW_TIME))
+ || proc_utmp_eq (&last_entry, data)))
+ found = 1;
else
- if ( last_entry.ut_type == RUN_LVL
- || last_entry.ut_type == BOOT_TIME
- || last_entry.ut_type == OLD_TIME
- || last_entry.ut_type == NEW_TIME
- || (( last_entry.ut_type == INIT_PROCESS
- || last_entry.ut_type == LOGIN_PROCESS
- || last_entry.ut_type == USER_PROCESS
- || last_entry.ut_type == DEAD_PROCESS)
- && !strncmp (last_entry.ut_id, data->ut_id, sizeof data->ut_id)))
- found = 1;
- else
- found = internal_getutid_r (data, &buffer);
+ found = internal_getut_r (data, &buffer);
/* Try to lock the file. */
memset (&fl, '\0', sizeof (struct flock));