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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2016 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef CGI_H
#define CGI_H

#include "../public/nsapi.h"
#include "../../ucx/buffer.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    int in[2];
    int out[2];
    pid_t pid;
} CGIProcess;

typedef struct {
    Session   *sn;
    Request   *rq;
    UcxBuffer *tmp;
    int       status;
    char      *msg;
} CGIResponseParser;
    
int send_cgi(pblock *pb, Session *sn, Request *rq);

char** cgi_add_vars(char **env, Session *sn, Request *rq);

int cgi_start(CGIProcess *p, char *path, char *const argv[], char *const envp[]);

void cgi_close(CGIProcess *p);

CGIResponseParser* cgi_parser_new(Session *sn, Request *rq);
void cgi_parser_free(CGIResponseParser *parser);
int cgi_parse_response(CGIResponseParser *parser, char *buf, size_t len, size_t *bpos);

#ifdef __cplusplus
}
#endif

#endif /* CGI_H */