Check return value of fseek and ftell

Change-Id: Ic2518251d8e8bfbfb3d53caa44c9ff378422c482
Signed-off-by: Semun Lee <semun.lee@samsung.com>

diff --git a/src/tool/preference_tool.c b/src/tool/preference_tool.c
index 97912778316fe87c7387794c90168464a341e222..499093325cc10a084c9248379edf95f81e315d23 100644 (file)
--- a/src/tool/preference_tool.c
+++ b/src/tool/preference_tool.c
@@ -824,8 +824,20 @@ static int _add_key_info_to_file(const char *key_path, const char *key)
                return -1;
        }
 
-       fseek(fp, 0, SEEK_END);
+       ret = fseek(fp, 0, SEEK_END);
+       if (ret == -1) {
+               printf("failed to fseek.(%d/%s)\n", errno, strerror(errno));
+               ret = -1;
+               goto out;
+       }
+
        file_size = ftell(fp);
+       if (file_size == -1) {
+               printf("failed to ftell.(%d/%s)\n", errno, strerror(errno));
+               ret = -1;
+               goto out;
+       }
+
        rewind(fp);
 
        buf = (char *)calloc(1, file_size);