helper.c

#include "shell.h"

/**
 *_putchar - a function to put a character
 *@c: character to put.
 *Return : nothin;
 */

void _putchar(char c)
{
	write(STDERR_FILENO, &c, 1);
}

/**
 *_putstr - a function to put a string
 *@s: array of characters (string)
 * Return: Nothing.
 */

void _putstr(char *s)
{
	int i;

	for (i = 0; s[i]; i++)
		write(STDERR_FILENO, &s[i], 1);
}

/**
 *_strlen - a function to count the array of char length
 *@s: array of characters (string)
 *Return: length
 */

int _strlen(char *s)
{
	int i;

	for (i = 0; s[i]; i++)
		;
	return (i);
}

/**
 *_putnum - prints unsigned integer
 *@num: number
 *Return: 0 on success, 1 on failure
 */

int _putnum(unsigned int num)
{
	unsigned int num_cp = num;
	char *num_str;
	int i, size = 0;

	if (num == 0)
	{
		_putchar('0');
		return (0);
	}

	while (num_cp)
	{
		size++;
		num_cp /= 10;
	}

	num_str = (char *)malloc(sizeof(char) * size);
	if (num_str == NULL)
	{
		return (1);
	}

	i = size - 1;
	while (num)
	{
		num_str[i] = '0' + (num % 10);
		num /= 10;
		i--;
	}

	i = 0;
	while (i < size)
	{
		_putchar(num_str[i]);
		i++;
	}

	free(num_str);
	return (0);
}

/**
 *print_stderr -  function for printing error messages.
 *@argv: the name of the command or executable.
 *@count: error count.
 *@av: coints the file name
 *@prompt: cointains the prompt
 *
 *Return: 127 or -1
 */

int print_stderr(char *argv, unsigned int count, char *av, char *prompt)
{
	_putstr(argv);
	_putchar(':'), _putchar(' ');
	if (_putnum(count))
		return (-1);
	_putchar(':'), _putchar(' ');
	_putstr(av);
	_putchar(':'), _putchar(' ');
	_putstr(prompt);

	return (127);
}