[tor-bugs] #15205 [Tor]: There's something fishy in OSX's checked strlcat.
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Mon Mar 9 18:58:46 UTC 2015
#15205: There's something fishy in OSX's checked strlcat.
------------------------+--------------------------------
Reporter: nickm | Owner:
Type: defect | Status: new
Priority: major | Milestone: Tor: 0.2.6.x-final
Component: Tor | Version:
Resolution: | Keywords:
Actual Points: | Parent ID:
Points: |
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Comment (by nickm):
Here is a C file to reproduce the bug:
{{{
#include <string.h>
int main(int argc, char **argv)
{
char a[300];
char b[30];
char c[300];
memset(a, 'x', 299);
a[299] = 0;
memset(c, 'y', 299);
c[299] = 0;
b[0] = 0;
strlcat(b, a, 300);
b[0] = 0;
strlcat(b, c, 300);
return 0;
}
}}}
Compile it with GCC on OSX 10.10, run it, and you'll get "Abort trap: 6".
I believe 10.9 will have the same issue.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15205#comment:2>
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