From 1dc9e472e19acfe6dc7f41e429236e7eef7ceda1 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 3 Mar 2009 19:28:35 -0800 Subject: auto import from //depot/cupcake/@135843 --- libc/private/resolv_static.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 libc/private/resolv_static.h (limited to 'libc/private/resolv_static.h') diff --git a/libc/private/resolv_static.h b/libc/private/resolv_static.h new file mode 100644 index 0000000..8f2a095 --- /dev/null +++ b/libc/private/resolv_static.h @@ -0,0 +1,32 @@ +#ifndef _RESOLV_STATIC_H +#define _RESOLV_STATIC_H + +#include + +/* this structure contains all the variables that were declared + * 'static' in the original NetBSD resolver code. + * + * this caused vast amounts of crashes and memory corruptions + * when the resolver was being used by multiple threads. + * + * (note: the OpenBSD/FreeBSD resolver has similar 'issues') + */ + +#define MAXALIASES 35 +#define MAXADDRS 35 + +typedef struct res_static { + char* h_addr_ptrs[MAXADDRS + 1]; + char* host_aliases[MAXALIASES]; + char hostbuf[8*1024]; + u_int32_t host_addr[16 / sizeof(u_int32_t)]; /* IPv4 or IPv6 */ + FILE* hostf; + int stayopen; + const char* servent_ptr; + struct servent servent; + struct hostent host; +} *res_static; + +extern res_static __res_get_static(void); + +#endif /* _RESOLV_STATIC_H */ -- cgit v1.1