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Don't send email about an unresolvable host name if fqdn is

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enabled and the user specified the run host via the -h flag.
This commit is contained in:
Todd C. Miller
2017-08-01 13:45:32 -06:00
parent 5ab1d724a9
commit 48459292ff
1 changed files with 16 additions and 13 deletions
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29
plugins/sudoers/sudoers.c
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@@ -1100,8 +1100,9 @@ cb_fqdn(const union sudo_defs_val *sd_un)
/* Next resolve user_runhost, setting user_runhost and user_srunhost. */
lhost = shost = NULL;
if (remote) {
/* Failure checked below. */
(void)resolve_host(user_runhost, &lhost, &shost);
if (!resolve_host(user_runhost, &lhost, &shost)) {
sudo_warnx(U_("unable to resolve host %s"), user_runhost);
}
} else {
/* Not remote, just use user_host. */
if ((lhost = strdup(user_host)) != NULL) {
@@ -1110,19 +1111,21 @@ cb_fqdn(const union sudo_defs_val *sd_un)
else
shost = lhost;
}
if (lhost == NULL || shost == NULL) {
free(lhost);
if (lhost != shost)
free(shost);
sudo_warnx(U_("%s: %s"), __func__, U_("unable to allocate memory"));
debug_return_bool(false);
}
}
if (lhost == NULL || shost == NULL) {
free(lhost);
free(shost);
log_warning(SLOG_SEND_MAIL|SLOG_RAW_MSG,
N_("unable to resolve host %s"), user_runhost);
debug_return_bool(false);
if (lhost != NULL && shost != NULL) {
if (user_srunhost != user_runhost)
free(user_srunhost);
free(user_runhost);
user_runhost = lhost;
user_srunhost = shost;
}
if (user_srunhost != user_runhost)
free(user_srunhost);
free(user_runhost);
user_runhost = lhost;
user_srunhost = shost;
sudo_debug_printf(SUDO_DEBUG_INFO|SUDO_DEBUG_LINENO,
"host %s, shost %s, runhost %s, srunhost %s",