diff options
| author | Roy Marples <roy@marples.name> | 2009-01-26 09:11:38 +0000 |
|---|---|---|
| committer | Roy Marples <roy@marples.name> | 2009-01-26 09:11:38 +0000 |
| commit | 4fb0c27c39d95db8fd8d4da3a3fb552d79f20613 (patch) | |
| tree | de03534c9bf2d2e9e97779eb3f92eb3afaf634a0 /if-options.c | |
| parent | c735a7323a86d426d529573598ccce3859484cbf (diff) | |
| download | dhcpcd-4fb0c27c39d95db8fd8d4da3a3fb552d79f20613.tar.xz | |
Ensure that we have enough buffer for gethostname and terminate it correctly.
Diffstat (limited to 'if-options.c')
| -rw-r--r-- | if-options.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/if-options.c b/if-options.c index 4e8ddbfe..e8eb5186 100644 --- a/if-options.c +++ b/if-options.c @@ -676,7 +676,9 @@ read_config(const char *file, const char *ifname, const char *ssid) ifo->timeout = DEFAULT_TIMEOUT; ifo->reboot = DEFAULT_REBOOT; ifo->metric = -1; - gethostname(ifo->hostname + 1, sizeof(ifo->hostname)); + gethostname(ifo->hostname + 1, HOSTNAME_MAX_LEN); + /* Ensure that the hostname is NULL terminated */ + ifo->hostname[HOSTNAME_MAX_LEN + 1] = '\0'; if (strcmp(ifo->hostname + 1, "(none)") == 0 || strcmp(ifo->hostname + 1, "localhost") == 0) ifo->hostname[1] = '\0'; |