48 lines
1.0 KiB
Diff
48 lines
1.0 KiB
Diff
---
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variables.c | 27 +++++++++++++++++++++++++++
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1 file changed, 27 insertions(+)
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--- variables.c
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+++ variables.c 2016-09-14 08:51:32.306631046 +0000
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@@ -1300,6 +1300,7 @@ static unsigned long rseed = 1;
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static int last_random_value;
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static int seeded_subshell = 0;
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+#if !defined(linux)
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/* A linear congruential random number generator based on the example
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one in the ANSI C standard. This one isn't very good, but a more
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complicated one is overkill. */
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@@ -1344,6 +1345,32 @@ seedrand ()
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sbrand (tv.tv_sec ^ tv.tv_usec ^ getpid ());
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}
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+#else
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+/* Use ISO C Random Number Functions of the glibc */
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+static int
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+brand (void)
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+{
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+ if (rseed == 0)
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+ seedrand ();
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+ return rand() & 32767;
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+}
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+
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+static void
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+sbrand (unsigned long seed)
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+{
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+ rseed = seed;
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+ srand(seed);
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+}
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+
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+static void
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+seedrand (void)
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+{
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+ struct timeval tv;
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+ gettimeofday (&tv, NULL);
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+ srand (tv.tv_sec ^ tv.tv_usec ^ getpid ());
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+}
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+#endif
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+
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static SHELL_VAR *
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assign_random (self, value, unused, key)
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SHELL_VAR *self;
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