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| author | Victor Stinner <victor.stinner@gmail.com> | 2015-03-19 22:21:49 +0100 |
|---|---|---|
| committer | Victor Stinner <victor.stinner@gmail.com> | 2015-03-19 22:21:49 +0100 |
| commit | 82ab525ae487e6f735821276641415ab58213fd6 (patch) | |
| tree | 1a68c2d52ba26160cc13a828ed35d1433811fe72 /Python/random.c | |
| parent | 8b1e703abacb20abff238860f30ef73ed498922c (diff) | |
| download | cpython-82ab525ae487e6f735821276641415ab58213fd6.tar.gz | |
Issue #22181: The availability of the getrandom() is now checked in configure,
and stored in pyconfig.h as the new HAVE_GETRANDOM_SYSCALL define.
Fix os.urandom() tests using file descriptors if os.urandom() uses getrandom().
Diffstat (limited to 'Python/random.c')
| -rw-r--r-- | Python/random.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/Python/random.c b/Python/random.c index dcc3aab79f..10fc505e0f 100644 --- a/Python/random.c +++ b/Python/random.c @@ -6,11 +6,8 @@ # ifdef HAVE_SYS_STAT_H # include <sys/stat.h> # endif -# ifdef HAVE_SYS_SYSCALL_H +# ifdef HAVE_GETRANDOM_SYSCALL # include <sys/syscall.h> -# if defined(__linux__) && defined(SYS_getrandom) -# define HAVE_GETRANDOM -# endif # endif #endif @@ -102,7 +99,7 @@ py_getentropy(unsigned char *buffer, Py_ssize_t size, int fatal) #else /* !HAVE_GETENTROPY */ -#ifdef HAVE_GETRANDOM +#ifdef HAVE_GETRANDOM_SYSCALL static int py_getrandom(void *buffer, Py_ssize_t size, int raise) { @@ -173,7 +170,7 @@ dev_urandom_noraise(unsigned char *buffer, Py_ssize_t size) if (fd < 0) Py_FatalError("Failed to open /dev/urandom"); -#ifdef HAVE_GETRANDOM +#ifdef HAVE_GETRANDOM_SYSCALL if (py_getrandom(buffer, size, 0) == 1) return; /* getrandom() is not supported by the running kernel, fall back @@ -205,14 +202,14 @@ dev_urandom_python(char *buffer, Py_ssize_t size) int fd; Py_ssize_t n; struct _Py_stat_struct st; -#ifdef HAVE_GETRANDOM +#ifdef HAVE_GETRANDOM_SYSCALL int res; #endif if (size <= 0) return 0; -#ifdef HAVE_GETRANDOM +#ifdef HAVE_GETRANDOM_SYSCALL res = py_getrandom(buffer, size, 1); if (res < 0) return -1; |