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