atom_parser.c: memory allocation and freeing bugs

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atom_parser.c has some bugs in memory allocation and deallocation paths:

1) It uses malloc(x * y) instead of calloc(x, y) without overflow checking;
2) It uses assign instead of strdup() in a few places, leading to double free.

The patch below fixes (at least some) issues found on OpenBSD.

Original issue reported on code.google.com by persgray@gmail.com on 9 Jul 2014 at 10:47

Attachments:

• patch-src_atom_parser_c