[PATCH v4 2/3] libxl: localtime(3) can return NULL

[Wei Liu <wei.liu2@citrix.com>]

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
v4: add logging
---
 tools/libxl/libxl_x86.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/libxl/libxl_x86.c b/tools/libxl/libxl_x86.c
index 8cd15ca..ce14a73 100644
--- a/tools/libxl/libxl_x86.c
+++ b/tools/libxl/libxl_x86.c
@@ -311,6 +311,12 @@ int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config,
         t = time(NULL);
         tm = localtime(&t);
 
+        if (!tm) {
+            LOG(ERROR, "Failed to call localtime");
+            ret = ERROR_FAIL;
+            goto out;
+        }
+
         rtc_timeoffset += tm->tm_gmtoff;
     }
 
@@ -335,6 +341,7 @@ int libxl__arch_domain_create(libxl__gc *gc, libxl_domain_config *d_config,
         }
     }
 
+out:
     return ret;
 }
 
-- 
1.9.1