diff options
Diffstat (limited to 'login/programs/xtmp.c')
| -rw-r--r-- | login/programs/xtmp.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/login/programs/xtmp.c b/login/programs/xtmp.c index 105145b01d..e27e1a8a86 100644 --- a/login/programs/xtmp.c +++ b/login/programs/xtmp.c @@ -85,30 +85,37 @@ utmp_to_xtmp (const struct utmp *utmp, struct xtmp *xtmp) /* Compare an old style entry XTMP with a new style entry UTMP. The function returns 1 if the information that is in both old and new - style entries is identical. Otherwise this function returns 0. */ + style entries is identical. Otherwise this function returns 0. + + The type of the argument `xtmp' is `struct utmp *', not `struct + utmp *'. This is intentional! We convert from and to `struct + xtmp' directly when we read and write an old style entry. But + since XTMP is converted from an old style entry, we compare only + those elements of the structure that are common to both the new and + the old style entry. */ int -compare_entry (const struct xtmp *xtmp, const struct utmp *utmp) +compare_entry (const struct utmp *xtmp, const struct utmp *utmp) { return ( #if _HAVE_XT_TYPE - 0 - xtmp->xt_type == utmp->ut_type + xtmp->ut_type == utmp->ut_type #endif #if _HAVE_XT_PID - 0 - && xtmp->xt_pid == utmp->ut_pid + && xtmp->ut_pid == utmp->ut_pid #endif - && !strncmp (xtmp->xt_line, utmp->ut_line, XT_LINESIZE - 1) + && !strncmp (xtmp->ut_line, utmp->ut_line, XT_LINESIZE - 1) #if _HAVE_XT_ID - 0 - && !strncmp (xtmp->xt_id, utmp->ut_id, sizeof utmp->ut_id) + && !strncmp (xtmp->ut_id, utmp->ut_id, sizeof utmp->ut_id) #endif #if _HAVE_UT_TV - 0 - && xtmp->xt_time == utmp->ut_tv.tv_sec + && xtmp->ut_tv.tv_sec == utmp->ut_tv.tv_sec #else - && xtmp->xt_time == utmp->ut_time + && xtmp->ut_time == utmp->ut_time #endif - && !strncmp (xtmp->xt_user, utmp->ut_user, XT_NAMESIZE) + && !strncmp (xtmp->ut_user, utmp->ut_user, XT_NAMESIZE) #if _HAVE_XT_HOST - 0 - && !strncmp (xtmp->xt_host, utmp->ut_host, XT_HOSTSIZE - 1) + && !strncmp (xtmp->ut_host, utmp->ut_host, XT_HOSTSIZE - 1) #endif - && xtmp->xt_addr == utmp->ut_addr); + && xtmp->ut_addr == utmp->ut_addr); } |