diff options
Diffstat (limited to 'login/pututline_r.c')
| -rw-r--r-- | login/pututline_r.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/login/pututline_r.c b/login/pututline_r.c index 07322e5740..824cf3a391 100644 --- a/login/pututline_r.c +++ b/login/pututline_r.c @@ -24,13 +24,14 @@ Boston, MA 02111-1307, USA. */ #include <unistd.h> #include <utmp.h> #include <sys/file.h> +#include <sys/stat.h> /* XXX An alternative solution would be to call a SUID root program which write the new value. */ int -pututline_r (const struct utmp *utmp_ptr, struct utmp_data *utmp_data) +pututline_r (const struct utmp *id, struct utmp_data *utmp_data) { struct stat st; int result = 0; @@ -59,17 +60,16 @@ pututline_r (const struct utmp *utmp_ptr, struct utmp_data *utmp_data) #if _HAVE_UT_TYPE - 0 /* Seek position to write. */ - if (utmp_data->ubuf.ut_type != utmp_ptr->ut_type) + if (utmp_data->ubuf.ut_type != id->ut_type) { /* We must not overwrite the data in UTMP_DATA. */ struct utmp_data *data_tmp = alloca (sizeof (utmp_data)); struct utmp *dummy; - off_t new_pos; *data_tmp = *utmp_data; utmp_data = data_tmp; - if (getutid_r (utmp_ptr, &dummy, utmp_data) < 0) + if (getutid_r (id, &dummy, utmp_data) < 0) { if (errno != ESRCH) /* Some error occured. If no entry was found, the position @@ -78,6 +78,7 @@ pututline_r (const struct utmp *utmp_ptr, struct utmp_data *utmp_data) /* Set position pointer to position after adding of the record. */ utmp_data->loc_utmp += sizeof (struct utmp); + } } #endif @@ -102,7 +103,7 @@ pututline_r (const struct utmp *utmp_ptr, struct utmp_data *utmp_data) } /* Write the new data. */ - if (write (utmp_data->ut_fd, utmp_ptr, sizeof (struct utmp)) + if (write (utmp_data->ut_fd, id, sizeof (struct utmp)) != sizeof (struct utmp)) { /* If we appended a new record this is only partially written. |