Hello,
I think that I have found a memory leak in Libidn.
Code: main.cpp
Test: test.txt
When I run valgrind it reports a memory leak:
valgrind --tool=memcheck --leak-check=full ./main < test.txt
==19727== Memcheck, a memory error detector
==19727== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
==19727== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for
copyright info
==19727== Command: ./main
==19727==
==19727==
==19727== HEAP SUMMARY:
==19727== in use at exit: 26 bytes in 3 blocks
==19727== total heap usage: 56 allocs, 53 frees, 9,553 bytes allocated
==19727==
==19727== For counts of detected and suppressed errors, rerun with: -v
==19727== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 4 from 4)
My patch for idna.c (
http://www.gnu.org/software/libidn/doxygen/idna_8c_source.html):
00508 {
00509 rc = idna_to_ascii_4i (start, (size_t) (end - start), buf,
flags);
00510 if (rc != IDNA_SUCCESS)
- return rc;
+ {
+ free (out);
+ return rc;
+ }
00512 }
Regards,
Olga.
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#include <iostream>
#include <string>
#include <contrib/libs/libidn/idna.h>
using namespace std;
int main() {
string url;
while (cin >> url) {
char* udata = 0;
if (idna_to_ascii_8z(url.c_str(), &udata, 0) == IDNA_SUCCESS) {
free(udata);
}
}
return 0;
}_______________________________________________
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