busybox: Fix snprintf arguments in lock

The first argument for snprintf is the buffer and the 2. one is the
size. Fix the order. This broke the lock application.

Fixes: 9d2b26d5a705 ("busybox: fix busybox lock applet pidstr buffer overflow")
Reported-by: Hartmut Birr <[email protected]>
Signed-off-by: Hauke Mehrtens <[email protected]>
(cherry picked from commit d80336e1a970b088c235dcf2773052537e6f5d72)

diff --git a/package/utils/busybox/patches/220-add_lock_util.patch b/package/utils/busybox/patches/220-add_lock_util.patch
index 623121b9fb9fd1913230424b217cc648a5fe32d2..579b705f346451534c6fb6ffe14da9df54a481c3 100644 (file)
--- a/package/utils/busybox/patches/220-add_lock_util.patch
+++ b/package/utils/busybox/patches/220-add_lock_util.patch
@@ -109,7 +109,7 @@
 +              if (!waitonly) {
 +                      lseek(fd, 0, SEEK_SET);
 +                      ftruncate(fd, 0);
-+                      snprintf(sizeof(pidstr), pidstr, "%d\n", pid);
++                      snprintf(pidstr, sizeof(pidstr), "%d\n", pid);
 +                      write(fd, pidstr, strlen(pidstr));
 +                      close(fd);
 +              }