90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* 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());
|
|
}
|