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Merge pull request #1626 from ethomson/index_ext_truncation

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improve test for index extension truncation
This commit is contained in:
Vicent Martí 2013-05-31 09:51:53 -07:00
commit 17ef7dbce4
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);
if (buffer_size - total_size < INDEX_FOOTER_SIZE)
if (buffer_size < total_size ||
buffer_size - total_size < INDEX_FOOTER_SIZE)
return 0;
/* 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 */
if (extension_size == 0)
return index_error_invalid("extension size is zero");
return index_error_invalid("extension is truncated");
seek_forward(extension_size);
}