📄 main.c

📁 一个uclinux下进行网络数据处理,及串口读取,CGI配置
💻 C
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//---------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>
#include <fcntl.h>

#pragma hdrstop

//---------------------------------------------------------------------------

#pragma argsused

#define CR 0x0D
#define LF 0x0A

char *g_pBoundAry;
char *g_pUpLoadBuff;
char *g_pEndString;

char* GetUpLoadFileTail(char *pStart,int nSize)
{
    char *pBound=g_pBoundAry;
    char *pFileTail=NULL;
    char *pFilePos=pStart;
    int nBoundSize=strlen(g_pBoundAry);
    int i;

    for(i=0;i<nSize-nBoundSize+1;i++)
    {
        while((pBound!=NULL)&&(*pBound==*pFilePos))
        {
            pBound++;
            pFilePos++;
        }
        if(*pBound!=NULL)
        {
            pBound=g_pBoundAry;
            pFilePos=pStart+i;
        }
        else
        {
            pFileTail=pFilePos-nBoundSize;
            break;
        }
    }

    return pFileTail;

}

int main(int argc, char* argv[])
{

    int i,nLength,bIsFirst;
    char ch,ch1,ch2;
    FILE *pFileOut,*pFileDebug;
    char *pFileHead,*pFileTail,*pFilePos;
    char *pEndString;

    nLength=0;

    pFileDebug=fopen("d:\\debug.txt","wb");
    pFileOut=fopen("d:\\out.txt","wb");

    //get content length
    /*
    if(getenv("CONTENT_LENGTH"))
    {
        nLength=atoi(getenv("CONTENT_LENGTH"));
    }
    */
    nLength=1000;
    g_pUpLoadBuff=(char*)malloc(sizeof(char)*(nLength+1));
    memset(g_pUpLoadBuff,0,nLength+1);

    //copy content to g_pUpLoadBuff；copy div str to g_pBoundAry
    bIsFirst=1;
    i=0;
    while(1)
    {

        ch=getc(stdin);
        *(g_pUpLoadBuff+i)=ch;
        i++;
        if(bIsFirst==1)
        {
            if(ch=='\n')
            {
                g_pBoundAry=(char*)malloc(sizeof(char)*(i));
                g_pEndString=(char*)malloc(sizeof(char)*(i+2));
                memset(g_pBoundAry,'\0',i);
                memset(g_pEndString,'\0',i+2);
                strncpy(g_pBoundAry,g_pUpLoadBuff,i-1);
                strcpy(g_pEndString,g_pBoundAry);
                strcat(g_pEndString,"--");
                bIsFirst=0;
                pEndString=g_pEndString;
            }
        }
        else
        {
            while((pEndString!=NULL)&&(*pEndString==ch))
            {
                pEndString++;
                ch=getc(stdin);
                *(g_pUpLoadBuff+i)=ch;
                i++;
                putc(ch,pFileDebug);
            }
            if(*pEndString!=NULL)
            {
                pEndString=g_pEndString;
            }
            else
            {
                break;
            }
        }

        putc(ch,pFileDebug);
    }

    //find the start postion
    pFileHead=strchr(g_pUpLoadBuff,'\n')+1;

    for(i=0;i<3;i++)
    {
        pFileHead=strchr(pFileHead,'\n')+1;
    }
    if(*pFileHead==LF)
    {
        pFileHead++;
    }

    //find the end position
    /*  strstr only can be used to upload txt file
    pFileTail=strstr(g_pUpLoadBuff+1,g_pBoundAry);
    */
    pFileTail=GetUpLoadFileTail(pFileHead,nLength-(pFileHead-g_pUpLoadBuff));
    pFilePos=pFileHead;
    //write file to disk
    while(pFilePos!=pFileTail)
    {
        putc(*pFilePos,pFileOut);
        pFilePos++;
    }

    printf("Content-Type:text/html\n\n");
    printf("<html>");
    printf("<br>");
    printf("total length=%d",nLength);
    printf("<br>");
    printf("bound string=%s",g_pBoundAry);
    printf("<br>");
    printf("head position=%d",(pFileHead-g_pUpLoadBuff));
    printf("<br>");
    printf("tail position=%d",pFileTail-g_pUpLoadBuff);
    printf("\n</html>");

    fflush(stdout);

    fclose(pFileDebug);
    fclose(pFileOut);
    free(g_pBoundAry);
    free(g_pEndString);
    free(g_pUpLoadBuff);
    return 0;
}
//---------------------------------------------------------------------------
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