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feat(parsing): adding the check of the port

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Raphael 2025-05-13 12:04:58 +02:00
parent 6525941cdd
commit cbb11f1822
1 changed files with 45 additions and 0 deletions
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sources/core/check.cpp Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* check.cpp :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/05/13 11:25:04 by rparodi #+# #+# */
/* Updated: 2025/05/13 11:59:01 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "core.hpp"
#include <cerrno>
#include <cstdlib>
#include <iostream>
/**
* @brief function to check if the port is valid
*
* @param input input given bu the user
* @return value between 1 and 65535 if valid, 0 if not
*/
unsigned short int valid_port(char *input)
{
if (input == NULL)
return (0);
for (size_t i = 0; input[i]; i++) {
if (!isdigit(input[i])) {
if (DEBUG)
std::cerr << LOG << CLR_RED << "Error: Not only number in port: " << input << std::endl;
return (0);
}
}
errno = 0;
int port = strtol(input, NULL, 10);
if (errno == ERANGE) {
if (DEBUG)
std::cerr << LOG << CLR_RED << "Error: Port out of range: " << input << std::endl;
return (0);
}
if (port < 1 || port > 65535)
return (0);
return (port);
}