94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* heredoc.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: cchauvet <cchauvet@student.42angoulem +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2023/02/17 15:36:26 by cchauvet #+# #+# */
|
|
/* Updated: 2023/04/17 12:14:11 by cchauvet ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "./redirection_private.h"
|
|
#include <readline/readline.h>
|
|
#include <unistd.h>
|
|
|
|
static bool ft_fd_is_closed(int fd)
|
|
{
|
|
int fd2;
|
|
|
|
fd2 = dup(fd);
|
|
if (fd2 == -1)
|
|
return (1);
|
|
close(fd2);
|
|
return (0);
|
|
}
|
|
|
|
static int ft_format_and_write(t_data *data, const char *str, int fd)
|
|
{
|
|
char *line_clean;
|
|
|
|
line_clean = ft_env_filler(data, str);
|
|
if (line_clean == NULL)
|
|
return (1);
|
|
ft_putendl_fd(line_clean, fd);
|
|
free(line_clean);
|
|
return (0);
|
|
}
|
|
|
|
int ft_heredoc2(t_data *data, char *line, char *stop, int fds[2])
|
|
{
|
|
if (line == NULL)
|
|
{
|
|
if (ft_fd_is_closed(0))
|
|
{
|
|
close(fds[0]);
|
|
fds[0] = -2;
|
|
return (1);
|
|
}
|
|
else
|
|
{
|
|
ft_eprintf("\nbozoshell: warning: here-document at line 1%s",
|
|
"delimited by end-of-file (wanted `adfsd')\n");
|
|
return (1);
|
|
}
|
|
}
|
|
if (ft_strcmp(line, stop) == 0)
|
|
return (1);
|
|
if (ft_format_and_write(data, line, fds[1]))
|
|
{
|
|
close(fds[0]);
|
|
fds[0] = -2;
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int ft_heredoc(t_data *data, char *stop)
|
|
{
|
|
int fds[2];
|
|
int stdin_bak;
|
|
char *line;
|
|
|
|
stdin_bak = dup(0);
|
|
if (stdin_bak == -1)
|
|
return (1);
|
|
if (pipe(fds))
|
|
{
|
|
close(stdin_bak);
|
|
return (1);
|
|
}
|
|
line = readline("> ");
|
|
while (ft_heredoc2(data, line, stop, fds) == 0)
|
|
{
|
|
free(line);
|
|
line = readline("> ");
|
|
}
|
|
free(line);
|
|
close(fds[1]);
|
|
dup2(stdin_bak, 0);
|
|
close(stdin_bak);
|
|
return (fds[0]);
|
|
}
|