diff options
Diffstat (limited to 'login/getutid_r.c')
-rw-r--r-- | login/getutid_r.c | 67 |
1 files changed, 45 insertions, 22 deletions
diff --git a/login/getutid_r.c b/login/getutid_r.c index 02013c29b9..347bbf3a86 100644 --- a/login/getutid_r.c +++ b/login/getutid_r.c @@ -53,32 +53,55 @@ getutid_r (const struct utmp *id, struct utmp **utmp, if (lseek (utmp_data->ut_fd, utmp_data->loc_utmp, SEEK_SET) == -1) return -1; - while (1) + if (id->ut_type == RUN_LVL || id->ut_type == BOOT_TIME + || id->ut_type == OLD_TIME || id->ut_type == NEW_TIME) { - /* Read the next entry. */ - if (read (utmp_data->ut_fd, &utmp_data->ubuf, sizeof (struct utmp)) - != sizeof (struct utmp)) + /* Search for next entry with type RUN_LVL, BOOT_TIME, + OLD_TIME, or NEW_TIME. */ + + while (1) { - errno = ESRCH; - return -1; + /* Read the next entry. */ + if (read (utmp_data->ut_fd, &utmp_data->ubuf, sizeof (struct utmp)) + != sizeof (struct utmp)) + { + errno = ESRCH; + return -1; + } + + /* Update position pointer. */ + utmp_data->loc_utmp += sizeof (struct utmp); + + if (id->ut_type == utmp_data->ubuf.ut_type) + break; } + } + else + { + /* Search for the next entry with the specified ID and with type + INIT_PROCESS, LOGIN_PROCESS, USER_PROCESS, or DEAD_PROCESS. */ - /* Update position pointer. */ - utmp_data->loc_utmp += sizeof (struct utmp); - - if ((id->ut_type == RUN_LVL || id->ut_type == BOOT_TIME - || id->ut_type == OLD_TIME || id->ut_type == NEW_TIME) - && id->ut_type != utmp_data->ubuf.ut_type) - /* Stop at the next entry with type RUN_LVL, BOOT_TIME, - OLD_TIME, or NEW_TIME. */ - break; - - if ((id->ut_type == INIT_PROCESS || id->ut_type == LOGIN_PROCESS - || id->ut_type == USER_PROCESS || id->ut_type == DEAD_PROCESS) - && strncmp (id->ut_id, utmp_data->ubuf.ut_id, sizeof id->ut_id) == 0) - /* Stop at the next entry with the specified ID and with type - INIT_PROCESS, LOGIN_PROCESS, USER_PROCESS, or DEAD_PROCESS. */ - break; + while (1) + { + /* Read the next entry. */ + if (read (utmp_data->ut_fd, &utmp_data->ubuf, sizeof (struct utmp)) + != sizeof (struct utmp)) + { + errno = ESRCH; + return -1; + } + + /* Update position pointer. */ + utmp_data->loc_utmp += sizeof (struct utmp); + + if (( utmp_data->ubuf.ut_type == INIT_PROCESS + || utmp_data->ubuf.ut_type == LOGIN_PROCESS + || utmp_data->ubuf.ut_type == USER_PROCESS + || utmp_data->ubuf.ut_type == DEAD_PROCESS) + && (strncmp (utmp_data->ubuf.ut_id, id->ut_id, sizeof id->ut_id) + == 0)) + break; + } } *utmp = &utmp_data->ubuf; |