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1 nishi 1 
/* $Id: check.c 1 2024-08-20 19:18:25Z nishi $ */
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#include "config.h"
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#include <stdio.h>
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int check_db(void){
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	int counter = 0;
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	const char* db = "";
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#ifdef USE_SQLITE
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	counter++;
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	db = "SQLite";
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#endif
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#ifdef USE_GDBM
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	counter++;
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	db = "GDBM";
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#endif
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#ifdef USE_NDBM
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	counter++;
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	db = "NDBM";
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#endif
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	if(counter > 1){
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		fprintf(stderr, "You cannot use multiple database types at once.\n");
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		return 1;
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	}else if(counter == 0){
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		fprintf(stderr, "You must select a database type.\n");
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		return 1;
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	}else{
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		printf("Database type is %s\n", db);
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	}
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	return 0;
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}
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int check_theme(void){
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	int counter = 0;
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	const char* theme = "";
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#ifdef USE_MODERN
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	counter++;
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	theme = "Modern";
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#endif
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#ifdef USE_OPTIMIZED
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	counter++;
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	theme = "Optimized";
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#endif
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	if(counter > 1){
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		fprintf(stderr, "You cannot use multiple themes at once.\n");
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		return 1;
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	}else if(counter == 0){
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		fprintf(stderr, "You must select a theme.\n");
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		return 1;
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	}else{
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		printf("Theme is %s\n", theme);
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	}
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	return 0;
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}
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int check_auth(void){
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	int counter = 0;
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	const char* method = "";
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#ifdef USE_COOKIE
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	counter++;
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	method = "Cookie";
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#endif
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	if(counter > 1){
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		fprintf(stderr, "You cannot use multiple authentication methods at once.\n");
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		return 1;
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	}else if(counter == 0){
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		fprintf(stderr, "You must select an authentication method.\n");
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		return 1;
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	}else{
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		printf("Authentication method is %s\n", method);
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	}
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	return 0;
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}
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int main(){
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	int st;
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	st = check_db();
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	if(st != 0) goto fail;
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	st = check_auth();
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	if(st != 0) goto fail;
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	st = check_theme();
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	if(st != 0) goto fail;
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	printf("Config validation successful.\n");
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	return 0;
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fail:
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	fprintf(stderr, "Config validation failure.\n");
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	return st;
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}