1 files changed, 45 insertions, 0 deletions
diff --git a/lib/util/randsysrandom.c b/lib/util/randsysrandom.c
new file mode 100644
index 00000000..f26bb18d
--- /dev/null
+++ b/lib/util/randsysrandom.c
@@ -0,0 +1,45 @@
+/* Implementation note: Mingw/Windows does not provide POSIX 'random', so
+   netpbm/pm_config.h makes that a macro for POSIX 'rand' on that platform
+*/
+
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
+#define _XOPEN_SOURCE 500  /* Make sure random() is in stdlib.h */
+#define _BSD_SOURCE  /* Make sure random() is in stdlib.h */
+
+#include <stdlib.h>
+
+#include "netpbm/pm_config.h"
+#include "netpbm/rand.h"
+
+static void
+vinit(struct pm_randSt * const randStP) {
+
+    randStP->max    = RAND_MAX;
+    randStP->stateP = NULL;
+}
+
+
+
+static void
+vsrand(struct pm_randSt * const randStP,
+       unsigned int       const seed) {
+
+    srandom(seed);
+}
+
+
+
+static unsigned long int
+vrand(struct pm_randSt * const randStP) {
+
+    return random();
+}
+
+
+struct pm_rand_vtable const pm_randsysrandom_vtable = {
+    &vinit,
+    &vsrand,
+    &vrand
+};
+
+