xtools.c

#include "main.h"

/**
 * _getenv - gets the path
 * @data: a pointer to the struct of data
 * @path_name: a path_name
 *
 * Return: (Success) a positive number
 * ------- (Fail) a negative number
 */

char *_getenv(char *path_name, sh_t *data)
{
	int i = 0;
	char *token;
	char *env;

	while (environ[i])
	{
		env = _strdup(environ[i]);
		token = strtok(env, "=");
		while (token)
		{
			if (_strcmp(token, path_name) == 0)
			{
				token = strtok(NULL, "=");
				data->env = env;
				return (token);
			}
			token = strtok(NULL, "=");
		}
		free(env);
		i++;
	}
	return (NULL);
}

/**
 * signal_handler - handle the process interrept signal
 * @signo: the signal identifier
 *
 * Return: void
 */

void signal_handler(int signo)
{
	if (signo == SIGINT)
	{
		PRINT("\n");
		PRINT(PROMPT);
	}
}

/**
 * fill_an_array - fill an array with elements
 * @a: the given array
 * @el: the given element
 * @len: the length of the array
 *
 * Return: pointer to filled array
 */

void *fill_an_array(void *a, int el, unsigned int len)
{
	char *p = a;
	unsigned int i = 0;

	while (i < len)
	{
		*p = el;
		p++;
		i++;
	}
	return (a);
}

/**
 * array_rev - reverse array
 * @arr: the given array
 * @len: the array length
 *
 * Return: void
 */

void array_rev(char *arr, int len)
{
	int i;
	char tmp;

	for (i = 0; i < (len / 2); i++)
	{
		tmp = arr[i];
		arr[i] = arr[(len - 1) - i];
		arr[(len - 1) - i] = tmp;
	}
}

/**
 * index_cmd - indexed command
 * @data: a pointer to the data structure
 *
 * Return: void
 */

void index_cmd(sh_t *data)
{
	data->index += 1;
}