source: network-demos/tftpTest/test.c @ 0fe6b0d

/*
 * Test RTEMS TFTP Client Filesystem
 *
 * This program may be distributed and used for any purpose.
 * I ask only that you:
 *      1. Leave this author information intact.
 *      2. Document any changes you make.
 *
 * W. Eric Norum
 * Saskatchewan Accelerator Laboratory
 * University of Saskatchewan
 * Saskatoon, Saskatchewan, CANADA
 * eric@skatter.usask.ca
 *
 *  $Id$
 */

#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <rtems.h>
#include <rtems/error.h>
#include <sys/fcntl.h>
#include <unistd.h>
#include <stdlib.h>

static char cbuf[1024];
static char *fullname;
static rtems_interval then, now;

static void
showRate (unsigned long totalRead)
{
        int elapsed;

        printf ("Read %lu bytes", totalRead);
        elapsed = now - then;
        if (elapsed) {
                rtems_interval ticksPerSecond;
                rtems_clock_get (RTEMS_CLOCK_GET_TICKS_PER_SECOND, &ticksPerSecond);
                printf (" (%ld bytes/sec)",
                                (long)(((long long)totalRead * ticksPerSecond)
                                                                / elapsed));
        }
        printf (".\n");
}

static void
testRawRead (void)
{
        int fd;
        int nread;
        unsigned long totalRead = 0;

        fd = open (fullname, O_RDONLY);
        if (fd < 0) {
                printf ("Open failed: %s\n", strerror (errno));
                return;
        }

        rtems_clock_get (RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &then);
        for (;;) {
                nread = read (fd, cbuf, sizeof cbuf);
                if (nread < 0) {
                        printf ("Read failed: %s\n", strerror (errno));
                        close (fd);
                        return;
                }
                if (nread == 0)
                        break;
                totalRead += nread;
        }
        rtems_clock_get (RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &now);
        close (fd);
        showRate (totalRead);
}

static void
testFread (void)
{
        FILE *fp;
        int nread;
        unsigned long totalRead = 0;

        fp = fopen (fullname, "r");
        if (fp == NULL) {
                printf ("Open failed: %s\n", strerror (errno));
                return;
        }

        rtems_clock_get (RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &then);
        for (;;) {
                nread = fread (cbuf, sizeof cbuf[0], sizeof cbuf, fp);
                if (nread < 0) {
                        printf ("Read failed: %s\n", strerror (errno));
                        fclose (fp);
                        return;
                }
                if (nread == 0)
                        break;
                totalRead += nread;
        }
        rtems_clock_get (RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &now);
        fclose (fp);
        showRate (totalRead);
}

static int
makeFullname (const char *hostname, const char *file)
{
        if (hostname == NULL)
                hostname = "";
        fullname = realloc (fullname, 8 + strlen (file) + strlen (hostname));
        sprintf (fullname, "/TFTP/%s/%s", hostname, file);
        printf ("Read `%s'.\n", fullname);
        return 1;
}

void
testTFTP (const char *hostname, const char *filename)
{
        /*
         * Check that invalid file names are reported as such
         */
        if (makeFullname (hostname, "")) {
                testRawRead ();
                testFread ();
        }

        /*
         * Check that non-existent files are reported as such
         */
        if (makeFullname (hostname, "BAD-FILE-NAME")) {
                testRawRead ();
                testFread ();
        }

        /*
         * Check that read works
         */
        if (makeFullname (hostname, filename)) {
                testRawRead ();
                testFread ();
        }
}