#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc,char **argv);
char *showenv(char **env,char *envname);

int main(int argc,char **argv)
{
char *SERVER_SOFTWARE,*SERVER_NAME,*GATEWAY_INTERFACE,*SERVER_PROTOCOL,
     *SERVER_PORT,*REQUEST_METHOD,*PATH_INFO,*PATH_TRANSLATED,
     *SCRIPT_NAME,*QUERY_STRING,*REMOTE_HOST,*REMOTE_ADDR,*AUTH_TYPE,
     *REMOTE_USER,*REMOTE_IDENT,*CONTENT_TYPE,*CONTENT_LENGTH,
     *HTTP_ACCEPT,*HTTP_USER_AGENT;

int a;
char buf[1024],*p;

	printf("Content-type: text/html\n");

	printf("--- arguments ---<br>");
	printf("argc=%d<br>",argc);
	for(a=0;a<argc;a++) {
		printf("argv[%d]=%s<br>",a,argv[a]);
	}

	printf("--- environment ---<br>");
	showenv(&SERVER_SOFTWARE,"SERVER_SOFTWARE");
	showenv(&SERVER_NAME,"SERVER_NAME");
	showenv(&GATEWAY_INTERFACE,"GATEWAY_INTERFACE");
	showenv(&SERVER_PROTOCOL,"SERVER_PROTOCOL");
	showenv(&SERVER_PORT,"SERVER_PORT");
	showenv(&REQUEST_METHOD,"REQUEST_METHOD");
	showenv(&PATH_INFO,"PATH_INFO");
	showenv(&PATH_TRANSLATED,"PATH_TRANSLATED");
	showenv(&SCRIPT_NAME,"SCRIPT_NAME");
	showenv(&QUERY_STRING,"QUERY_STRING");
	showenv(&REMOTE_HOST,"REMOTE_HOST");
	showenv(&REMOTE_ADDR,"REMOTE_ADDR");
	showenv(&AUTH_TYPE,"AUTH_TYPE");
	showenv(&REMOTE_USER,"REMOTE_USER");
	showenv(&REMOTE_IDENT,"REMOTE_IDENT");
	showenv(&CONTENT_TYPE,"CONTENT_TYPE");
	showenv(&CONTENT_LENGTH,"CONTENT_LENGTH");
	showenv(&HTTP_ACCEPT,"HTTP_ACCEPT");
	showenv(&HTTP_USER_AGENT,"HTTP_USER_AGENT");

	if (REQUEST_METHOD != NULL) {
		if (strcasecmp(REQUEST_METHOD,"POST") == 0) {
			printf("--- stdin ---<br>");
			while(fgets(buf,sizeof(buf),stdin) != NULL) {
				for(p=buf; *p;) {
					if ((*p == 13) || (*p == 10))
						strcpy(p,p+1);
					else
						p++;
				}

				printf("%s<br>",buf);
			}
		}
	}
	fflush(stdout);

	return 0;
}

char *showenv(char **env,char *envname)
{
	if ((*env = getenv(envname)) == NULL) {
		printf("unset %s<br>",envname);
	} else {
		printf("%s=%s<br>",envname,*env);
	}

	return *env;
}