util: introduce alloca0() and use it at a number of places

[elogind.git] / src / libsystemd-bus / bus-kernel.c

diff --git a/src/libsystemd-bus/bus-kernel.c b/src/libsystemd-bus/bus-kernel.c
index 6105a020701ee0c2c90c511d2590563b0c79ffb8..264c6994d9c62b71c4959db75a2b4a02f678b25d 100644 (file)
--- a/src/libsystemd-bus/bus-kernel.c
+++ b/src/libsystemd-bus/bus-kernel.c
@@ -474,7 +474,7 @@ int bus_kernel_create(const char *name, char **s) {
                 return -errno;
 
         l = strlen(name);
-        make = alloca(offsetof(struct kdbus_cmd_bus_make, name) + DECIMAL_STR_MAX(uid_t) + 1 + l + 1);
+        make = alloca0(offsetof(struct kdbus_cmd_bus_make, name) + DECIMAL_STR_MAX(uid_t) + 1 + l + 1);
         sprintf(make->name, "%lu-%s", (unsigned long) getuid(), name);
         make->size = offsetof(struct kdbus_cmd_bus_make, name) + strlen(make->name) + 1;
         make->flags = KDBUS_ACCESS_WORLD | KDBUS_POLICY_OPEN;