diff options
Diffstat (limited to 'src/tools')
| -rw-r--r-- | src/tools/irm/irm_ipcp_bootstrap.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/tools/irm/irm_ipcp_bootstrap.c b/src/tools/irm/irm_ipcp_bootstrap.c index 9a0a30ec..4eeedbd3 100644 --- a/src/tools/irm/irm_ipcp_bootstrap.c +++ b/src/tools/irm/irm_ipcp_bootstrap.c @@ -182,11 +182,17 @@ int do_bootstrap_ipcp(int argc, } else if (matches(*argv, "device") == 0) { dev = *(argv + 1); } else if (matches(*argv, "ethertype") == 0) { - /* NOTE: We might do some checks on this. */ + /* NOTE: We might do some more checks on strtol. */ if (matches(*(argv + 1), "0x") == 0) ethertype = strtol(*(argv + 1), NULL, 0); else ethertype = strtol(*(argv + 1), NULL, 16); + if (ethertype < 0x0600 || ethertype == 0xFFFF) { + printf("Invalid Ethertype: \"%s\".\n" + "Recommended range: 0xA000-0xEFFF.\n", + *(argv + 1)); + return -1; + } } else if (matches(*argv, "addr") == 0) { addr_size = atoi(*(argv + 1)); } else if (matches(*argv, "eid") == 0) { |