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index: correctly parse invalidated TREE extensions

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A TREE extension with an entry count of -1 means that it was
invalidated and we should ignore it. Do so instead of returning an
error.

This fixes issue #202

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
This commit is contained in:
Carlos Martín Nieto 2011-05-24 15:24:45 +02:00 committed by Vicent Marti
parent cdd9fd473e
commit a02fc2cd16
1 changed files with 10 additions and 1 deletions
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11
src/index.c
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@ -520,11 +520,20 @@ static int read_tree_internal(git_index_tree **out,
/* Blank-terminated ASCII decimal number of entries in this tree */
if (git__strtol32(&count, buffer, &buffer, 10) < GIT_SUCCESS ||
count < 0) {
count < -1) {
error = GIT_EOBJCORRUPTED;
goto exit;
}
/* Invalidated TREE. Free the tree but report success */
if (count == -1) {
buffer = buffer_end;
free_tree(tree); /* Needs to be done manually */
tree = NULL;
error = GIT_SUCCESS;
goto exit;
}
tree->entries = (size_t)count;
if (*buffer != ' ' || ++buffer >= buffer_end) {