diff options
| -rw-r--r-- | toolchain/uClibc/patches-0.9.33.2/135-inet_fix_threaded_use_of_res_functions.patch | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/toolchain/uClibc/patches-0.9.33.2/135-inet_fix_threaded_use_of_res_functions.patch b/toolchain/uClibc/patches-0.9.33.2/135-inet_fix_threaded_use_of_res_functions.patch new file mode 100644 index 0000000000..4c23141ea3 --- /dev/null +++ b/toolchain/uClibc/patches-0.9.33.2/135-inet_fix_threaded_use_of_res_functions.patch @@ -0,0 +1,126 @@ +--- a/libc/inet/resolv.c ++++ b/libc/inet/resolv.c +@@ -3536,6 +3536,61 @@ + return 0; + } + ++static unsigned int ++res_randomid(void) ++{ ++ return 0xffff & getpid(); ++} ++ ++/* Our res_init never fails (always returns 0) */ ++int ++res_init(void) ++{ ++ /* ++ * These three fields used to be statically initialized. This made ++ * it hard to use this code in a shared library. It is necessary, ++ * now that we're doing dynamic initialization here, that we preserve ++ * the old semantics: if an application modifies one of these three ++ * fields of _res before res_init() is called, res_init() will not ++ * alter them. Of course, if an application is setting them to ++ * _zero_ before calling res_init(), hoping to override what used ++ * to be the static default, we can't detect it and unexpected results ++ * will follow. Zero for any of these fields would make no sense, ++ * so one can safely assume that the applications were already getting ++ * unexpected results. ++ * ++ * _res.options is tricky since some apps were known to diddle the bits ++ * before res_init() was first called. We can't replicate that semantic ++ * with dynamic initialization (they may have turned bits off that are ++ * set in RES_DEFAULT). Our solution is to declare such applications ++ * "broken". They could fool us by setting RES_INIT but none do (yet). ++ */ ++ ++ __UCLIBC_MUTEX_LOCK(__resolv_lock); ++ ++ if (!_res.retrans) ++ _res.retrans = RES_TIMEOUT; ++ if (!_res.retry) ++ _res.retry = 4; ++ if (!(_res.options & RES_INIT)) ++ _res.options = RES_DEFAULT; ++ ++ /* ++ * This one used to initialize implicitly to zero, so unless the app ++ * has set it to something in particular, we can randomize it now. ++ */ ++ if (!_res.id) ++ _res.id = res_randomid(); ++ ++ __UCLIBC_MUTEX_UNLOCK(__resolv_lock); ++ ++ __res_vinit(&_res, 1); ++ __res_sync = res_sync_func; ++ ++ return 0; ++} ++libc_hidden_def(res_init) ++ + static void + __res_iclose(void) + { +@@ -3608,61 +3663,6 @@ + # endif + #endif /* !__UCLIBC_HAS_THREADS__ */ + +-static unsigned int +-res_randomid(void) +-{ +- return 0xffff & getpid(); +-} +- +-/* Our res_init never fails (always returns 0) */ +-int +-res_init(void) +-{ +- /* +- * These three fields used to be statically initialized. This made +- * it hard to use this code in a shared library. It is necessary, +- * now that we're doing dynamic initialization here, that we preserve +- * the old semantics: if an application modifies one of these three +- * fields of _res before res_init() is called, res_init() will not +- * alter them. Of course, if an application is setting them to +- * _zero_ before calling res_init(), hoping to override what used +- * to be the static default, we can't detect it and unexpected results +- * will follow. Zero for any of these fields would make no sense, +- * so one can safely assume that the applications were already getting +- * unexpected results. +- * +- * _res.options is tricky since some apps were known to diddle the bits +- * before res_init() was first called. We can't replicate that semantic +- * with dynamic initialization (they may have turned bits off that are +- * set in RES_DEFAULT). Our solution is to declare such applications +- * "broken". They could fool us by setting RES_INIT but none do (yet). +- */ +- +- __UCLIBC_MUTEX_LOCK(__resolv_lock); +- +- if (!_res.retrans) +- _res.retrans = RES_TIMEOUT; +- if (!_res.retry) +- _res.retry = 4; +- if (!(_res.options & RES_INIT)) +- _res.options = RES_DEFAULT; +- +- /* +- * This one used to initialize implicitly to zero, so unless the app +- * has set it to something in particular, we can randomize it now. +- */ +- if (!_res.id) +- _res.id = res_randomid(); +- +- __UCLIBC_MUTEX_UNLOCK(__resolv_lock); +- +- __res_vinit(&_res, 1); +- __res_sync = res_sync_func; +- +- return 0; +-} +-libc_hidden_def(res_init) +- + /* + * Set up default settings. If the configuration file exist, the values + * there will have precedence. Otherwise, the server address is set to |