1 files changed, 97 insertions, 0 deletions
diff --git a/contrib/build/havege_sample.c b/contrib/build/havege_sample.c
new file mode 100644
index 0000000..8a407ee
--- /dev/null
+++ b/contrib/build/havege_sample.c
@@ -0,0 +1,97 @@
+/*
+Simple test of build - writes 1k of RNG runs to stdout
+
+gcc -o havege_sample -DUSE_SOURCE -I../../src -Wall havege_sample.c ../../src/.libs/libhavege.a
+./havege_sample > /dev/null
+
+After package is installed into test RAM disk /dev/shm/1
+gcc -Wall -o havege_sample -I/dev/shm/1/include -L/dev/shm/1/lib havege_sample.c -lhavege
+LD_LIBRARY_PATH=/dev/shm/1/lib ./havege_sample > /dev/shm/havege_random
+
+
+
+*/
+
+#include <stdio.h>
+
+#ifdef USE_SOURCE
+#include "havege.h"
+#else
+#include <haveged/havege.h>
+#endif
+
+int my_status_dump ( H_PTR h, char *buf, size_t buflen) {
+  H_SD_TOPIC topics[4] = {H_SD_TOPIC_BUILD, H_SD_TOPIC_TUNE, H_SD_TOPIC_TEST, H_SD_TOPIC_SUM};
+  int ret=0, i;
+   
+  for(i=0;i<4 && ret<(buflen-2);i++) {
+    ret += havege_status_dump(h, topics[i], buf + ret, buflen-ret);
+    if (ret>(buflen-2))
+      break;
+    buf[ret++] = '\n';
+    }
+  return ret;
+}
+/**
+ * RNG output is written to stdout
+ */
+int main(void) {
+  int rc;
+  H_UINT* buf;
+  H_PARAMS havege_parameters={0};
+  H_PTR havege_state = NULL;
+  const int status_buf_size = 8192;
+  char status_buf[status_buf_size];
+  int i, size;
+
+  //havege_parameters.msg_out     = print_msg;
+  fprintf(stderr, "library version is %s\n", havege_version(NULL));
+  havege_state = havege_create(&havege_parameters);
+
+  rc = havege_state==NULL? H_NOHANDLE : havege_state->error;
+  if (H_NOERR==rc) {
+    buf = havege_state->io_buf;
+    size = havege_state->i_readSz /sizeof(H_UINT);
+    fprintf(stderr, "havege_create: buffer size is %d\n", havege_state->i_readSz);
+    }
+  else {
+    if (H_NOTESTSPEC==rc)
+      fprintf(stderr, "ERROR: havege_create: unrecognized test setup: %s", havege_parameters.testSpec);
+    else fprintf(stderr, "ERROR: havege_create has returned %d\n",rc);
+    if (H_NOHANDLE!=rc)
+      havege_destroy(havage_state);
+    return 1;
+    }
+  rc = havege_run(havege_state);
+  if ( rc ) {
+    fprintf(stderr, "ERROR: havege_run has returned %d\n", havege_state->error);
+    havege_destroy(havege_state);
+    return 1;
+  }
+
+  if ( my_status_dump(havege_state, status_buf, status_buf_size) > 0 )
+    fprintf(stderr,"%s\n", status_buf);
+  for (i=0;i<1024;i++) {
+
+    rc = havege_rng(havege_state, buf, size);
+    if ( rc != (int) size ) {
+      fprintf(stderr, "ERROR: havege_rng has returned %d\n", havege_state->error);
+      havege_destroy(havege_state);
+      return 1;
+    }
+
+    rc = fwrite(buf, 1, size, stdout);
+    if ( rc < size ) {
+      fprintf(stderr, "ERROR: fwrite\n");
+      havege_destroy(havege_state);
+      return 1;
+    }
+  }
+
+  if ( my_status_dump(havege_state, status_buf, status_buf_size) > 0 )
+      fprintf(stderr,"%s\n", status_buf);
+  havege_destroy(havege_state);
+  return 0;
+}
+
+