terminado

src/executor/heredoc_readline.c

@@ -0,0 +1,89 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   heredoc_readline.c                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/02/15 00:20:00 by sede-san          #+#    #+#             */
+/*   Updated: 2026/02/15 00:20:00 by sede-san         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "heredoc_internal.h"
+#include "variables.h"
+#include <errno.h>
+
+static bool	append_char(char **line, size_t *len, char c)
+{
+	char	*new_line;
+	size_t	i;
+
+	new_line = (char *)malloc(*len + 2);
+	if (new_line == NULL)
+		return (free(*line), *line = NULL, false);
+	i = 0;
+	while (i < *len)
+	{
+		new_line[i] = (*line)[i];
+		i++;
+	}
+	new_line[*len] = c;
+	new_line[*len + 1] = '\0';
+	free(*line);
+	*line = new_line;
+	(*len)++;
+	return (true);
+}
+
+static char	*read_line_stdin(void)
+{
+	char	*line;
+	char	c;
+	size_t	len;
+	ssize_t	nread;
+
+	line = ft_strdup("");
+	if (line == NULL)
+		return (NULL);
+	len = 0;
+	errno = 0;
+	nread = read(STDIN_FILENO, &c, 1);
+	while (nread > 0)
+	{
+		if (c == '\n')
+			return (line);
+		if (!append_char(&line, &len, c))
+			return (NULL);
+		nread = read(STDIN_FILENO, &c, 1);
+	}
+	if (nread == -1 && errno == EINTR)
+		return (line);
+	if (len > 0)
+		return (line);
+	return (free(line), NULL);
+}
+
+char	*executor_heredoc_read_line(t_minishell *minishell)
+{
+	char	*prompt;
+	char	*line;
+	size_t	len;
+
+	if (!isatty(STDIN_FILENO))
+	{
+		line = get_next_line(STDIN_FILENO);
+		if (line == NULL)
+			return (NULL);
+		len = ft_strlen(line);
+		if (len > 0 && line[len - 1] == '\n')
+			line[len - 1] = '\0';
+		return (line);
+	}
+	prompt = get_var("PS2", minishell);
+	if (prompt == NULL)
+		prompt = DEFAULT_PS2;
+	if (write(STDOUT_FILENO, prompt, ft_strlen(prompt)) == -1)
+		return (NULL);
+	return (read_line_stdin());
+}