e_prints.c

#include "sshell.h"
/**
* print_s - prints a string
* @s: string to be printed
*
* Return: number of characters printed
*/
int print_s(char *s)
{
	int i = 0;

	while (s[i] != '\0')
	{
		_putchar(s[i]);
		i++;
	}

	return (i);
}
/**
* prompt_user - prints $ to let user know the program is
* ready to take their input
* prints the prompt if the shell is in interactive mode
* Return: no return
*/
void prompt_user(void)
{
	if ((isatty(STDIN_FILENO) == 1) && (isatty(STDOUT_FILENO) == 1))
		flags.interactive = 1;
	if (flags.interactive)
		write(STDERR_FILENO, "$ ", 2);
}
/**
* main - carries out the read, execute then print output loop
* @ac: argument count
* @av: argument vector
* @envp: environment vector
*
* Return: 0
*/

int main(int ac, char **av, char *envp[])
{
	char *line = NULL, *pathcommand = NULL, *path = NULL;
	size_t bufsize = 0;
	ssize_t linesize = 0;
	char **command = NULL, **paths = NULL;
	(void)envp, (void)av;
	if (ac < 1)
		return (-1);
	signal(SIGINT, handle_signal);
	while (1)
	{
		free_buffers(command);
		free_buffers(paths);
		free(pathcommand);
		prompt_user();
		linesize = getline(&line, &bufsize, stdin);
		if (linesize < 0)
			break;
		info.ln_count++;
		if (line[linesize - 1] == '\n')
			line[linesize - 1] = '\0';
		command = tokenizer(line);
		if (command == NULL || *command == NULL || **command == '\0')
			continue;
		if (checker(command, line))
			continue;
		path = find_path();
		paths = tokenizer(path);
		pathcommand = test_path(paths, command[0]);
		if (!pathcommand)
			perror(av[0]);
		else
			execution(pathcommand, command);
	}
	if (linesize < 0 && flags.interactive)
		write(STDERR_FILENO, "\n", 1);
	free(line);
	return (0);
}
/**
* _strcmp - compares two strings
* @s1: compared to s2;
* @s2: compared to s1;
*
* Return: returns difference between strings
*/
int _strcmp(char *s1, char *s2)
{
	int i = 0, output;

	while (*(s1 + i) == *(s2 + i) && *(s1 + i) != '\0')
		i++;

	output = (*(s1 + i) - *(s2 + i));

	return (output);
}

/**
* _strlen - returns the length of a string
* @s: string passed
*
* Return: returns length of string passed
*/
int _strlen(char *s)
{
	int count = 0;

	while (*s != '\0')
	{
		count++;
		s++;
	}
	return (count);
}