simple_shell/execute.c at master · denistillwaters/simple_shell · GitHub

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#include "shell.h"

/**
 * execute - This function exxecutes a command
 * @path: path of command passed
 * @args: argument passed
 */

void execute(char *path, char **args)
{
	pid_t pid = fork();

	if (pid < 0)
	{
		exit(EXIT_FAILURE);
	}
	else if (pid == 0)
	{
		execve(path, args, environ);
		perror("exec: error");
		exit(EXIT_FAILURE);
	}
	else
	{
		waitpid(pid, NULL, 0);
	}
}

/**
 * error_message - This function displays error essage
 * if command isn't able to run
 * @args: repreesent argument passed
 * @count: count commands
 * @av: argument vector
 */

void error_message(char **args, int count, char **av)
{
	int temp, mult = 1, len = 0;

	write(STDERR_FILENO, av[0], _strlen(av[0]));
	write(STDERR_FILENO, ": ", 2);

	temp = count;

	while (temp > 9)
	{
		temp /= 10;
		mult *= 10;
		++len;
	}
	while (len > 0)
	{
		if ((count / mult) < 10)
			write_error((count / mult + '0'));
		else
			write_error(((count / mult) % 10 + '0'));

		--len;
		mult /= 10;
	}
		write_error(count % 10 + '0');
		write(STDERR_FILENO, ": ", 2);
		write(STDERR_FILENO, args[0], _strlen(args[0]));
		write(STDERR_FILENO, ": not found\n", 12);

}

/**
 * write_error - This function converts int to char
 * @error: char to right
 * Return: int (success)
 */

int write_error(char error)
{
	return (write(STDERR_FILENO, &error, 1));
}

/**
 * exit_errorMessage - This function handles errors from exit status
 * @args: argument passed
 * @count: number of cmd
 * @av: argument vector
 */

void exit_errorMessage(char **args, int count, char **av)
{
	int temp, len = 0, mult = 1;

	write(STDERR_FILENO, av[0], _strlen(av[0]));
	write(STDERR_FILENO, ": ", 2);
	temp = count;

	while (temp > 9)
	{
		temp /= 10;
		mult *= 10;
		++len;
	}
		while (len > 0)
		{
			if ((count / mult) < 10)
				write_error((count / mult + '0'));
			else
				write_error(((count / mult) % 10 + '0'));
			--len;
			mult /= 10;
		}
		write_error((count % 10 + '0'));
		write(STDERR_FILENO, ": ", 2);
		write(STDERR_FILENO, args[0], _strlen(args[0]));
		write(STDERR_FILENO, ": ", 2);
		write(STDERR_FILENO, "Illegal number: ", 16);
		write(STDERR_FILENO, args[1], _strlen(args[1]));
		_putchar('\n');
}