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[v9_11] silence "unused value" warning

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(cherry picked from commit f4d20b15a2)
This commit is contained in:
Evan Hunt 2017-02-03 11:27:00 -08:00
parent a4240242cd
commit a09e49f3f4
1 changed files with 6 additions and 1 deletions
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7
lib/isc/unix/dir.c
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@ -160,6 +160,9 @@ isc_dir_chdir(const char *dirname) {
isc_result_t
isc_dir_chroot(const char *dirname) {
#ifdef HAVE_CHROOT
void *tmp;
#endif
REQUIRE(dirname != NULL);
@ -170,7 +173,9 @@ isc_dir_chroot(const char *dirname) {
* may fail to load library in chroot.
* Do not report errors if it fails, we do not need any result now.
*/
getprotobyname("udp") && getservbyname("domain", "udp");
tmp = getprotobyname("udp");
if (tmp != NULL)
(void) getservbyname("domain", "udp");
if (chroot(dirname) < 0 || chdir("/") < 0)
return (isc__errno2result(errno));