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std: Fix an invalid read in from_c_multistring 

When `count` is `Some` this function was reading a byte past the end
of the buffer.
This commit is contained in:
Brian Anderson 2013-09-17 21:25:18 -07:00
parent 460021bdf2
commit fd0fcba9f5
1 changed files with 2 additions and 2 deletions
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4
src/libstd/str.rs
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@ -1107,8 +1107,8 @@ pub mod raw {
Some(limit) => (true, limit),
None => (false, 0)
};
while(*(curr_ptr as *libc::c_char) != 0 as libc::c_char
&& ((limited_count && ctr < limit) || !limited_count)) {
while(((limited_count && ctr < limit) || !limited_count)
&& *(curr_ptr as *libc::c_char) != 0 as libc::c_char) {
let env_pair = from_c_str(
curr_ptr as *libc::c_char);
result.push(env_pair);