errors.c

#include "shell.h"

int create_error(char **args, int err);
char *error_126(char **args);
char *error_127(char **args);

/**
 * error_126 - Creates an error message for permission denied failures.
 * @args: An array of arguments passed to the command.
 * Return: The error string.
 */

char *error_126(char **args)
{
	char *error, *hist_str;
	int len;

	hist_str = _itoa(hist);
	if (!hist_str)
		return (NULL);
	len = _strlen(name) + _strlen(hist_str) + _strlen(args[0]) + 24;
	error = malloc(sizeof(char) * (len + 1));
	if (!error)
	{
		free(hist_str);
		return (NULL);
	}
	_strcpy(error, name);
	_strcat(error, ": ");
	_strcat(error, hist_str);
	_strcat(error, ": ");
	_strcat(error, args[0]);
	_strcat(error, ": Permission denied\n");
	free(hist_str);
	return (error);
}

/**
 * error_127 - Creates an error message for command not found failures.
 * @args: An array of arguments passed to the command.
 * Return: The error string.
 */

char *error_127(char **args)
{
	char *error, *hist_str;
	int len;

	hist_str = _itoa(hist);
	if (!hist_str)
		return (NULL);
	len = _strlen(name) + _strlen(hist_str) + _strlen(args[0]) + 16;
	error = malloc(sizeof(char) * (len + 1));
	if (!error)
	{
		free(hist_str);
		return (NULL);
	}
	_strcpy(error, name);
	_strcat(error, ": ");
	_strcat(error, hist_str);
	_strcat(error, ": ");
	_strcat(error, args[0]);
	_strcat(error, ": not found\n");
	free(hist_str);
	return (error);
}

/**
 * create_error - Writes a custom error message to stderr.
 * @args: An array of arguments.
 * @err: The error value.
 * Return: The error value.
 */

int create_error(char **args, int err)
{
	char *error;

	switch (err)
	{
		case -1:
			error = error_env(args);
			break;
		case 1:
			error = error_1(args);
			break;
		case 2:
			if (*(args[0]) == 'e')
				error = error_2_exit(++args);
			else if (args[0][0] == ';' || args[0][0] == '&' || args[0][0] == '|')
				error = error_2_syntax(args);
			else
				error = error_2_cd(args);
			break;
		case 126:
			error = error_126(args);
			break;
		case 127:
			error = error_127(args);
			break;
	}
	write(STDERR_FILENO, error, _strlen(error));
	if (error)
		free(error);
	return (err);
}