[hackers] [sbase] Check snprintf() return value || sin

From: <git_AT_suckless.org>
Date: Thu, 23 Jan 2014 22:17:19 +0100

commit 3ef662c988b01cb6be993f4cb0cd749a7e20105b
Author: sin <sin_AT_2f30.org>
Date: Thu Jan 23 20:05:01 2014 +0000

    Check snprintf() return value

diff --git a/du.c b/du.c
index 525ed9b..e250e0c 100644
--- a/du.c
+++ b/du.c
_AT_@ -137,11 +137,13 @@ du(const char *path)
                 m = nblks(&st);
                 n += m;
                 if (aflag && !sflag) {
- if (S_ISLNK(st.st_mode))
- snprintf(file, sizeof(file), "%s/%s",
- cwd, dent->d_name);
- else
+ if (S_ISLNK(st.st_mode)) {
+ if (snprintf(file, sizeof(file), "%s/%s",
+ cwd, dent->d_name) >= sizeof(file))
+ enprintf(EXIT_FAILURE, "path too long
");
+ } else {
                                 realpath(dent->d_name, file);
+ }
                         print(m, file);
                 }
         }
Received on Thu Jan 23 2014 - 22:17:19 CET