cookie3.c

JAVA分布式程序学习的课件（全英文）

/* query.c: A CGI script written in C which gets query (form)
input using the GET method */
/* To compile: gcc cookie3.c util.o */

#include <stdio.h>
#ifndef NO_STDLIB_H
#include <stdlib.h>
#else
char *getenv();
#endif

typedef struct {
    char name[128];
    char val[128];
} entry;

void getword(char *word, char *line, char stop);
char x2c(char *what);
void unescape_url(char *url);
void plustospace(char *str);



main(int argc, char *argv[]) {
    entry entries[10000];
    register int x,m=0;
    char *cl;

    printf("Content-type: text/html%c%c",10,10);

    if(strcmp(getenv("REQUEST_METHOD"),"GET")) {
        printf("This script should be referenced with a METHOD of GET.\n");
        printf("If you don't understand this, see this ");
        printf("<A HREF=\"http://www.ncsa.uiuc.edu/SDG/Software/Mosaic/Docs/fill-out-forms/overview.html\">forms overview</A>.%c",10);
        exit(1);
    }

    cl = getenv("HTTP_COOKIE");
    if(cl == NULL) {
        printf("No cookie information received.\n");
        exit(1);
     }
     printf ("\nCookie recieved; %s\n", cl);             

/*
    cl = getenv("QUERY_STRING");
    if(cl == NULL) {
        printf("No query information to decode.\n");
        exit(1);
    }
    for(x=0;cl[0] != '\0';x++) {
        m=x;
        getword(entries[x].val,cl,'&');
        plustospace(entries[x].val);
        unescape_url(entries[x].val);
        getword(entries[x].name,entries[x].val,'=');
    }

    printf("<H1>Query Results</H1>");
    printf("You submitted the following name/value pairs:<p>%c",10);
    printf("<ul>%c",10);

    for(x=0; x <= m; x++)
        printf("<li> <code>%s = %s</code>%c",entries[x].name,
               entries[x].val,10);
    printf("</ul>%c",10);
*/
}