1 files changed, 10 insertions, 10 deletions

diff --git a/usr.bin/at/privs.h b/usr.bin/at/privs.h
index 3f70ce84e18d..297c2529ac47 100644
--- a/usr.bin/at/privs.h
+++ b/usr.bin/at/privs.h
@@ -72,8 +72,8 @@ gid_t real_gid, effective_gid;
 	effective_uid = geteuid(); \
 	real_gid = getgid(); \
 	effective_gid = getegid(); \
-	seteuid(real_uid); \
-	setegid(real_gid); \
+	if (seteuid(real_uid) != 0) err(1, "seteuid failed"); \
+	if (setegid(real_gid) != 0) err(1, "setegid failed"); \
 }
 
 #define RELINQUISH_PRIVS_ROOT(a, b) { \
@@ -81,26 +81,26 @@ gid_t real_gid, effective_gid;
 	effective_uid = geteuid(); \
 	real_gid = (b); \
 	effective_gid = getegid(); \
-	setegid(real_gid); \
-	seteuid(real_uid); \
+	if (setegid(real_gid) != 0) err(1, "setegid failed"); \
+	if (seteuid(real_uid) != 0) err(1, "seteuid failed"); \
 }
 
 #define PRIV_START { \
-	seteuid(effective_uid); \
-	setegid(effective_gid); \
+	if (seteuid(effective_uid) != 0) err(1, "seteuid failed"); \
+	if (setegid(effective_gid) != 0) err(1, "setegid failed"); \
 }
 
 #define PRIV_END { \
-	setegid(real_gid); \
-	seteuid(real_uid); \
+	if (setegid(real_gid) != 0) err(1, "setegid failed"); \
+	if (seteuid(real_uid) != 0) err(1, "seteuid failed"); \
 }
 
 #define REDUCE_PRIV(a, b) { \
 	PRIV_START \
 	effective_uid = (a); \
 	effective_gid = (b); \
-	setreuid((uid_t)-1, effective_uid); \
-	setregid((gid_t)-1, effective_gid); \
+	if (setreuid((uid_t)-1, effective_uid) != 0) err(1, "setreuid failed"); \
+	if (setregid((gid_t)-1, effective_gid) != 0) err(1, "setregid failed"); \
 	PRIV_END \
 }
 #endif