Correctly check for errors in strlower_m() returns.

5 files changed, 32 insertions, 8 deletions

diff --git a/source3/utils/net_ads.c b/source3/utils/net_ads.c
index b1eac52df2..b1d55f10b0 100644
--- a/source3/utils/net_ads.c
+++ b/source3/utils/net_ads.c
@@ -1256,7 +1256,9 @@ static NTSTATUS net_update_dns_ext(TALLOC_CTX *mem_ctx, ADS_STRUCT *ads,
 	} else {
 		name_to_fqdn( machine_name, lp_netbios_name() );
 	}
-	strlower_m( machine_name );
+	if (!strlower_m( machine_name )) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
 
 	if (num_addrs == 0 || iplist == NULL) {
 		/*
@@ -2192,7 +2194,11 @@ int net_ads_changetrustpw(struct net_context *c, int argc, const char **argv)
 	}
 
 	fstrcpy(my_name, lp_netbios_name());
-	strlower_m(my_name);
+	if (!strlower_m(my_name)) {
+		ads_destroy(&ads);
+		return -1;
+	}
+
 	if (asprintf(&host_principal, "%s$@%s", my_name, ads->config.realm) == -1) {
 		ads_destroy(&ads);
 		return -1;
diff --git a/source3/utils/net_rpc_join.c b/source3/utils/net_rpc_join.c
index 50383fee6b..ed81aacac7 100644
--- a/source3/utils/net_rpc_join.c
+++ b/source3/utils/net_rpc_join.c
@@ -321,7 +321,10 @@ int net_rpc_join_newstyle(struct net_context *c, int argc, const char **argv)
 		status = NT_STATUS_NO_MEMORY;
 		goto done;
 	}
-	strlower_m(acct_name);
+	if (!strlower_m(acct_name)) {
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto done;
+	}
 
 	init_lsa_String(&lsa_acct_name, acct_name);
 
diff --git a/source3/utils/net_usershare.c b/source3/utils/net_usershare.c
index 153b45e7f8..382fe2f250 100644
--- a/source3/utils/net_usershare.c
+++ b/source3/utils/net_usershare.c
@@ -523,7 +523,9 @@ static int net_usershare_info(struct net_context *c, int argc, const char **argv
 			return net_usershare_info_usage(c, argc, argv);
 	}
 
-	strlower_m(wcard);
+	if (!strlower_m(wcard)) {
+		return -1;
+	}
 
 	ctx = talloc_init("share_info");
 	ret = get_share_list(ctx, wcard, only_ours);
@@ -1036,7 +1038,9 @@ static int net_usershare_list(struct net_context *c, int argc,
 			return net_usershare_list_usage(c, argc, argv);
 	}
 
-	strlower_m(wcard);
+	if (!strlower_m(wcard)) {
+		return -1;
+	}
 
 	ctx = talloc_init("share_list");
 	ret = get_share_list(ctx, wcard, only_ours);
diff --git a/source3/utils/pdbedit.c b/source3/utils/pdbedit.c
index 06eed201f4..8a3551bf6b 100644
--- a/source3/utils/pdbedit.c
+++ b/source3/utils/pdbedit.c
@@ -655,7 +655,11 @@ static int set_machine_info(const char *machinename,
 		return -1;
 	}
 
-	strlower_m(name);
+	if (!strlower_m(name)) {
+		fprintf(stderr, "strlower_m %s failed\n", name);
+		TALLOC_FREE(sam_pwent);
+		return -1;
+	}
 
 	ret = pdb_getsampwnam(sam_pwent, name);
 	if (!ret) {
@@ -853,7 +857,10 @@ static int new_machine(const char *machinename, char *machine_sid)
 		return -1;
 	}
 
-	strlower_m(name);
+	if (!strlower_m(name)) {
+		fprintf(stderr, "strlower_m %s failed\n", name);
+		return -1;
+	}
 
 	flags = LOCAL_ADD_USER | LOCAL_TRUST_ACCOUNT | LOCAL_SET_PASSWORD;
 
diff --git a/source3/utils/smbpasswd.c b/source3/utils/smbpasswd.c
index f845147da4..66c80da618 100644
--- a/source3/utils/smbpasswd.c
+++ b/source3/utils/smbpasswd.c
@@ -370,7 +370,11 @@ static int process_root(int local_flags)
 		if (local_flags & LOCAL_ADD_USER) {
 		        SAFE_FREE(new_passwd);
 			new_passwd = smb_xstrdup(user_name);
-			strlower_m(new_passwd);
+			if (!strlower_m(new_passwd)) {
+				fprintf(stderr, "strlower_m %s failed\n",
+					new_passwd);
+				exit(1);
+			}
 		}
 
 		/*