/*
	mini_epn.c

*/

#include <EXTERN.h>
#include <perl.h>
#include "epn_nagios.h"

#define MAX_INPUT_CHARS 1024

static PerlInterpreter *my_perl = NULL;

int main(int argc, char **argv, char **env) {

	/*
	#ifdef aTHX
		dTHX;
	#endif
	*/

	char *embedding[] = { "", "p1.pl" };
	char *plugin_output ;
	char fname[MAX_INPUT_CHARS];
	char *args[] = {"", "0", "", "", NULL };
	char command_line[MAX_INPUT_CHARS];
	int exitstatus;
	int pclose_result;

	if((my_perl = perl_alloc()) == NULL) {
		printf("%s\n", "Error: Could not allocate memory for embedded Perl interpreter!");
		exit(1);
		}
	perl_construct(my_perl);
	exitstatus = perl_parse(my_perl, xs_init, 2, embedding, NULL);
	if(!exitstatus) {

		exitstatus = perl_run(my_perl);

		while(printf("Enter file name: ") && fgets(command_line, MAX_INPUT_CHARS - 1, stdin)) {
			SV *plugin_hndlr_cr;
			STRLEN n_a;
			int count = 0 ;

			dSP;

			command_line[strlen(command_line) - 1] = '\0';

			strncpy(fname, command_line, strcspn(command_line, " "));
			fname[strcspn(command_line, " ")] = '\x0';
			args[0] = fname ;
			args[3] = command_line + strlen(fname) + 1 ;

			args[2] = "";

			/* call our perl interpreter to compile and optionally cache the command */

			ENTER;
			SAVETMPS;
			PUSHMARK(SP);

			XPUSHs(sv_2mortal(newSVpv(args[0], 0)));
			XPUSHs(sv_2mortal(newSVpv(args[1], 0)));
			XPUSHs(sv_2mortal(newSVpv(args[2], 0)));
			XPUSHs(sv_2mortal(newSVpv(args[3], 0)));

			PUTBACK;

			count = call_pv("Embed::Persistent::eval_file", G_SCALAR | G_EVAL);

			SPAGAIN;

			/* check return status  */
			if(SvTRUE(ERRSV)) {
				(void) POPs;

				pclose_result = -2;
				printf("embedded perl ran %s with error %s\n", fname, SvPVX(ERRSV));
				continue;
				}
			else {
				plugin_hndlr_cr = newSVsv(POPs);

				PUTBACK;
				FREETMPS;
				LEAVE;
				}

			ENTER;
			SAVETMPS;
			PUSHMARK(SP);

			XPUSHs(sv_2mortal(newSVpv(args[0], 0)));
			XPUSHs(sv_2mortal(newSVpv(args[1], 0)));
			XPUSHs(plugin_hndlr_cr);
			XPUSHs(sv_2mortal(newSVpv(args[3], 0)));

			PUTBACK;

			count = perl_call_pv("Embed::Persistent::run_package", G_EVAL | G_ARRAY);

			SPAGAIN;

			plugin_output = POPpx ;
			pclose_result = POPi ;

			printf("embedded perl plugin return code and output was: %d & '%s'\n", pclose_result, plugin_output);

			PUTBACK;
			FREETMPS;
			LEAVE;

			}

		}


	PL_perl_destruct_level = 0;
	perl_destruct(my_perl);
	perl_free(my_perl);
	exit(exitstatus);
	}