handlepath2.c

#include "shell.h"

/**
 * total_dir - finds total number of directories in the path
 * @path: the path string
 *
 * Return: number of directories in the path
 */
unsigned int total_dir(char *path)
{
	unsigned int dir, i, flag;

	i = 0, dir = 0, flag = 0;
	while (path[i])
	{
		if (path[i] != ':')
			flag = 1;

		if ((flag && path[i + 1] == ':') || (flag && path[i + 1] == '\0'))
		{
			dir++;
			flag = 0;
		}
		++i;
	}
	return (dir);
}

/**
 * _getenv - gets the environment variable value
 * @name: name of the environment vaariable you are looking for
 * @environ: the enviroment variables
 *
 * Return: the value associated with the variable
 */
char *_getenv(const char *name, char **environ)
{
	char *env_value;
	char *name_copy;
	unsigned int i, length;

/* find the length of the argument, then malloc space for it */
	length = _conststrlen(name);
	name_copy = malloc((sizeof(char) * length) + 1);
	if (name_copy == NULL)
		return (NULL);
/* copy the contents of the name argument to the new variable, name_copy */
	_conststrncpy(name_copy, name, length);
/*
 * find the enviroment variable that matches the name_copy variable
 * assign the value to the value variable and return the address
 */
	i = 0;
	env_value = strtok(environ[i], "=");
	while (environ[i])
	{
		if (_strcmp(env_value, name_copy))
		{
			env_value = strtok(NULL, "\n");
			free(name_copy);
			return (env_value);
		}
		++i;
		env_value = strtok(environ[i], "=");
	}

	free(name_copy);
	return (NULL);
}