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dhcp: nettools: check return value of g_file_set_contents()

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Found by covscan:

 NetworkManager-1.22.0/src/dhcp/nm-dhcp-nettools.c:945: check_return:
 Calling "g_file_set_contents" without checking return value (as is
 done elsewhere 16 out of 20 times).

Fixes: 9f89516928 ('dhcp: nettools: read/write lease files')
This commit is contained in:
Beniamino Galvani
2019-12-17 15:19:50 +01:00
parent 0de4fd6ebc
commit cfc418f887
1 changed files with 8 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/dhcp/nm-dhcp-nettools.c
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@@ -924,11 +924,12 @@ lease_to_ip4_config (NMDedupMultiIndex *multi_idx,
/*****************************************************************************/
static void
lease_save (NDhcp4ClientLease *lease, const char *lease_file)
lease_save (NMDhcpNettools *self, NDhcp4ClientLease *lease, const char *lease_file)
{
struct in_addr a_address;
nm_auto_free_gstring GString *new_contents = NULL;
char sbuf[NM_UTILS_INET_ADDRSTRLEN];
gs_free_error GError *error = NULL;
nm_assert (lease);
nm_assert (lease_file);
@@ -942,10 +943,11 @@ lease_save (NDhcp4ClientLease *lease, const char *lease_file)
g_string_append_printf (new_contents,
"ADDRESS=%s\n", nm_utils_inet4_ntop (a_address.s_addr, sbuf));
g_file_set_contents (lease_file,
new_contents->str,
-1,
NULL);
if (!g_file_set_contents (lease_file,
new_contents->str,
-1,
&error))
_LOGW ("error saving lease to %s: %s", lease_file, error->message);
}
static void
@@ -975,7 +977,7 @@ bound4_handle (NMDhcpNettools *self, NDhcp4ClientLease *lease)
}
nm_dhcp_option_add_requests_to_options (options, _nm_dhcp_option_dhcp4_options);
lease_save (lease, priv->lease_file);
lease_save (self, lease, priv->lease_file);
nm_dhcp_client_set_state (NM_DHCP_CLIENT (self),
NM_DHCP_STATE_BOUND,