serfile.c

linux下的一个串口调试程序的源代码

/*
 * Program:     serfile
 * Funtcion:    transmit a file via a serial port
 * Usage:       serfile filename
 * Date:        2002-02-19
 * Version:		0.0.5
 * Author:      Paul Dean
 */

#include <stdio.h>              //* printf */
#include <fcntl.h>              //* open */
#include <string.h>             //* bzero */
#include <stdlib.h>             //* exit */
#include <sys/times.h>          //* times */
#include <unistd.h>             //* read, write, close */
#include <sys/stat.h>           //* lstat */

#include "types.h"
#include "serial.h"
#include "args.h"

static PACKAGE_INFO pkgInfo = {
    "serfile",                  //* program */
    "serutils",                 //* package */
    "0.0.4",                    //* version */
    "Paul Dean",                //* author */
    0                           //* reserved */
},             *pPkgInfo = &pkgInfo;

static PORT_INFO portInfo = {
    0,                          //* debug */
    0,                          //* echo */
    115200,                     //* baudrate */
    0,                          //* port */
    8,                          //* databit */
    1,                          //* flow control: hardware */
    'N',                        //* no parity check */
    "1",                        //* stopbit */
    NULL,                       //* device */
    0                           //* reserved */
},             *pPortInfo = &portInfo;

static ARGUMENTS args = { &pkgInfo, &portInfo };
P_ARGUMENTS     pArgs = &args;

static INT32    SendAllFiles (char **pathname);

int main (int argc, char *argv[])
{
    INT32           retval = 0;

    parse_arguments (argc, argv, 1, pPkgInfo, pPortInfo);
    //* open comport */
    retval = OpenComPort (pPortInfo);
    if (retval) {
        fprintf (stderr, "Make sure /dev/ttyS%d "
                 "not in use or you have enough privilege.\n\n",
                 pPortInfo->port);
        exit (retval);
    }
    SendAllFiles (&argv[optind]);
    CloseComPort ();
    exit (0);
}

static INT32 SendAllFiles (char **pathname)
{
    long            oldtick, newtick;
    INT32           systick;
    float           kbps = 0, time = 0;
    long            byteSend = 0;
    struct stat     stat;
    int             num = 0;
    oldtick = times (NULL);     //* get system tick number */
    //* send files in char **pathname via serial port */
    while (*pathname != NULL) {
        printf ("\nsenging file %s, echo mode: %s\n",
                *pathname, pPortInfo->echo == 0 ? "off" : "on");
        if (-1 == SendFile (*pathname, pPortInfo->echo)) {
            fflush (stdout);
            fflush (stderr);
            fprintf (stderr, "\ncannot send file %s\n", *pathname);
            return (-1);
        }
        lstat (*pathname, &stat);
        num++;
        byteSend += stat.st_size;
        pathname++;
    }

    newtick = times (NULL);
    systick = sysconf (_SC_CLK_TCK);    //* get system clock tick per second */
    time = (float) (newtick - oldtick) / systick;
    kbps = (float) byteSend / time / 1000;
    printf ("\n%d files, %ld bytes sent in %.2fs, %.2fKbps\n",
            num, byteSend, time, kbps);
    return (0);
}