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Properly fix memory leak in _nss_dns_gethostbyname4_r with big DNS answer

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Instead of trying to guess whether the second buffer needs to be freed
set a flag at the place it is allocated
This commit is contained in:
Andreas Schwab
2014-02-18 10:57:25 +01:00
parent c6af2d896c
commit ab09bf616a
8 changed files with 95 additions and 49 deletions
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6
include/resolv.h
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@ -48,11 +48,11 @@ libc_hidden_proto (__res_randomid)
libc_hidden_proto (__res_state)
int __libc_res_nquery (res_state, const char *, int, int, u_char *, int,
u_char **, u_char **, int *, int *);
u_char **, u_char **, int *, int *, int *);
int __libc_res_nsearch (res_state, const char *, int, int, u_char *, int,
u_char **, u_char **, int *, int *);
u_char **, u_char **, int *, int *, int *);
int __libc_res_nsend (res_state, const u_char *, int, const u_char *, int,
u_char *, int, u_char **, u_char **, int *, int *)
u_char *, int, u_char **, u_char **, int *, int *, int *)
attribute_hidden;
libresolv_hidden_proto (_sethtent)