Windows: Fix cm_IoctlSkipQueryOptions buffer management

When cm_IoctlSkipQueryOptions advances the input buffer
pointer it must also reduce the available input length.

LICENSE MIT

Change-Id: I4e0d673e3ff5d8621e715d33d73616a22211a8a9
Reviewed-on: http://gerrit.openafs.org/2076
Tested-by: Jeffrey Altman <jaltman@openafs.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>

diff --git a/src/WINNT/afsd/cm_ioctl.c b/src/WINNT/afsd/cm_ioctl.c
index 12f92435fb40e722b689c7705b54d59092b5ebab..2b3bde012596def99980be58edc3abca6513b428 100644 (file)
--- a/src/WINNT/afsd/cm_ioctl.c
+++ b/src/WINNT/afsd/cm_ioctl.c
@@ -304,6 +304,7 @@ cm_IoctlSkipQueryOptions(struct cm_ioctl *ioctlp, struct cm_user *userp)
 {
     cm_ioctlQueryOptions_t * optionsp = (cm_ioctlQueryOptions_t *)ioctlp->inDatap;
     ioctlp->inDatap += optionsp->size;
+    ioctlp->inCopied -= optionsp->size;
 }
 
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