diff options
| -rw-r--r-- | utils.c | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -485,18 +485,21 @@ write_zone_uci(struct uci_context *ctx, struct fw3_zone *z, fw3_foreach(dev, &z->devices) { + char *ep; + if (!dev) continue; p = buf; + ep = buf + sizeof(buf); if (dev->invert) - p += sprintf(p, "!"); + p += snprintf(p, ep - p, "!"); if (*dev->network) - p += sprintf(p, "%s@%s", dev->name, dev->network); + p += snprintf(p, ep - p, "%s@%s", dev->name, dev->network); else - p += sprintf(p, "%s", dev->name); + p += snprintf(p, ep - p, "%s", dev->name); ptr.value = buf; uci_add_list(ctx, &ptr); |