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improve test for index extension truncation

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Edward Thomson 2013-05-31 11:41:33 -05:00
parent 0c01f93e8c
commit 8c2458bea6
1 changed files with 3 additions and 2 deletions
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src/index.c
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@ -1575,7 +1575,8 @@ static size_t read_extension(git_index *index, const char *buffer, size_t buffer
total_size = dest.extension_size + sizeof(struct index_extension); total_size = dest.extension_size + sizeof(struct index_extension);
if (buffer_size - total_size < INDEX_FOOTER_SIZE) if (buffer_size < total_size ||
buffer_size - total_size < INDEX_FOOTER_SIZE)
return 0; return 0;
/* optional extension */ /* optional extension */
@ -1661,7 +1662,7 @@ static int parse_index(git_index *index, const char *buffer, size_t buffer_size)
/* see if we have read any bytes from the extension */ /* see if we have read any bytes from the extension */
if (extension_size == 0) if (extension_size == 0)
return index_error_invalid("extension size is zero"); return index_error_invalid("extension is truncated");
seek_forward(extension_size); seek_forward(extension_size);
} }