inbuilt_handler.c

#include "shell.h"

/**
 * inbuilt_handler - Executes the builtin funtions in case the command is one
 * @commands: User's input parsed as an array of commads
 *
 * Return: 1 if the command is a builtin, 0 otherwise
*/
int inbuilt_handler(char **commands)
{
	if (commands[0] == NULL)
		return (0);

	if (inbuilt_envar(commands))
		return (1);

	if (other_set_inbuilts(commands))
		return (1);

	return (0);
}

/**
 * inbuilt_envar - Verifies if a command is a builtin
 * @commands: Arrays of commnads
 *
 * Return: 1 if command is a builtin, 0 otherwise
*/
int inbuilt_envar(char **commands)
{
	if (strcmp(commands[0], "env") == 0)
	{
		if (commands[1] != NULL)
			return (0);

		env();
		return (1);
	}

	if (strcmp(commands[0], "setenv") == 0)
	{
		if (commands[1] == NULL || commands[2] == NULL || commands[3] != NULL)
			return (1);

		_setenv(commands[1], commands[2]);
		return (1);
	}

	if (strcmp(commands[0], "unsetenv") == 0)
	{
		if (commands[1] == NULL || commands[2] != NULL)
			return (1);

		_unsetenv(commands[1]);
		return (1);
	}

	return (0);
}

/**
 * other_set_inbuilts - Verifies if a command is a builtin
 * @commands: Arrays of commnads
 *
 * Return: 1 if command is a builtin, 0 otherwise
*/
int other_set_inbuilts(char **commands)
{
	if (strcmp(commands[0], "cd") == 0)
	{
		char *path = commands[1];

		if (commands[1] == NULL)
			path = env_get("HOME");

		if (path == NULL)
			path = "/";

		_cd(path);
		return (1);
	}

	if (strcmp(commands[0], "alias") == 0)
	{
		_alias(commands);
		return (1);
	}

	if (strcmp(commands[0], "help") == 0)
	{
		_help(commands);
		return (1);
	}

	if (strcmp(commands[0], "history") == 0)
	{
		if (commands[1] != NULL)
		{
			print_builtin_error("history: No args allowed", "");
			return (1);
		}

	}

	return (0);
}