84 lines
1.6 KiB
Diff
84 lines
1.6 KiB
Diff
--- variables.c
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+++ variables.c 2009-02-27 17:44:46.626430014 +0100
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@@ -1203,6 +1203,7 @@ init_seconds_var ()
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return v;
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}
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+#if !defined(linux)
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/* The random number seed. You can change this by setting RANDOM. */
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static unsigned long rseed = 1;
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static int last_random_value;
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@@ -1256,6 +1257,24 @@ 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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+
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+static int last_sbrand_pid;
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+
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+static int brand ()
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+{
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+ return random() & 32767;
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+}
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+
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+static void sbrand (unsigned long seed)
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+{
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+ srandom(seed);
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+}
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+
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+static void
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+seedrand () {}
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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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@@ -1264,8 +1283,10 @@ assign_random (self, value, unused, key)
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char *key;
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{
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sbrand (strtoul (value, (char **)NULL, 10));
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+#if !defined(linux)
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if (subshell_environment)
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seeded_subshell = getpid ();
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+#endif
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return (self);
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}
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@@ -1274,6 +1295,7 @@ get_random_number ()
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{
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int rv, pid;
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+#if !defined(linux)
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/* Reset for command and process substitution. */
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pid = getpid ();
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if (subshell_environment && seeded_subshell != pid)
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@@ -1285,6 +1307,18 @@ get_random_number ()
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do
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rv = brand ();
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while (rv == last_random_value);
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+#else
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+ if (subshell_environment)
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+ {
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+ int mypid = getpid();
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+ if (mypid != last_sbrand_pid)
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+ {
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+ last_sbrand_pid = mypid;
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+ sbrand (mypid + NOW);
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+ }
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+ }
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+ rv = brand();
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+#endif
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return rv;
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}
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@@ -1296,7 +1330,9 @@ get_random (var)
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char *p;
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rv = get_random_number ();
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+#if !defined(linux)
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last_random_value = rv;
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+#endif
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p = itos (rv);
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FREE (value_cell (var));
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