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2002-08-25 Roland McGrath <roland@redhat.com>

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* sysdeps/generic/utmp_file.c (LOCK_FILE): Check for error from fcntl.
	(getutent_r_file, internal_getut_r): Updated all callers.
	(getutline_r_file, pututline_file, updwtmp_file): Likewise.
This commit is contained in:
Roland McGrath 2002-08-25 23:15:57 +00:00
parent 046b40694f
commit 52c828525f
1 changed files with 20 additions and 6 deletions
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26
sysdeps/generic/utmp_file.c
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@ -67,7 +67,7 @@ static void timeout_handler (int signum) {};
memset (&fl, '\0', sizeof (struct flock)); \
fl.l_type = (type); \
fl.l_whence = SEEK_SET; \
__fcntl ((fd), F_SETLKW, &fl)
if (__fcntl ((fd), F_SETLKW, &fl) < 0)
#define UNLOCK_FILE(fd) \
/* Unlock the file. */ \
@ -171,7 +171,11 @@ getutent_r_file (struct utmp *buffer, struct utmp **result)
return -1;
}
LOCK_FILE (file_fd, F_RDLCK);
LOCK_FILE (file_fd, F_RDLCK)
{
*result = NULL;
return -1;
}
/* Read the next entry. */
nbytes = __read (file_fd, &last_entry, sizeof (struct utmp));
@ -227,7 +231,8 @@ internal_getut_r (const struct utmp *id, struct utmp *buffer)
{
int result = -1;
LOCK_FILE (file_fd, F_RDLCK);
LOCK_FILE (file_fd, F_RDLCK)
return result;
#if _HAVE_UT_TYPE - 0
if (id->ut_type == RUN_LVL || id->ut_type == BOOT_TIME
@ -325,7 +330,11 @@ getutline_r_file (const struct utmp *line, struct utmp *buffer,
return -1;
}
LOCK_FILE (file_fd, F_RDLCK);
LOCK_FILE (file_fd, F_RDLCK)
{
*result = NULL;
return -1;
}
while (1)
{
@ -386,7 +395,8 @@ pututline_file (const struct utmp *data)
else
found = internal_getut_r (data, &buffer);
LOCK_FILE (file_fd, F_WRLCK);
LOCK_FILE (file_fd, F_WRLCK)
return NULL;
if (found < 0)
{
@ -455,7 +465,11 @@ updwtmp_file (const char *file, const struct utmp *utmp)
if (fd < 0)
return -1;
LOCK_FILE (fd, F_WRLCK);
LOCK_FILE (fd, F_WRLCK)
{
__close (fd);
return result;
}
/* Remember original size of log file. */
offset = __lseek64 (fd, 0, SEEK_END);