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「✨」 feat(heredoc): multiple heredoc implementation

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yosyo
2024-05-23 07:19:42 +02:00
parent d2b59c2344
commit 5663190865
1 changed files with 77 additions and 23 deletions
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100
src/exec/heredoc.c
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@ -6,47 +6,101 @@
/* By: mmoussou <mmoussou@student.42angouleme.fr +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/05/20 09:19:39 by mmoussou #+# #+# */
/* Updated: 2024/05/21 00:34:48 by mmoussou ### ########.fr */
/* Updated: 2024/05/23 07:18:01 by mmoussou ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
/*
# mode
0: ouvre un nouveau fichier
<fd>: close ce fd
-1: pour signifier qu'il faut decrémenter la static
*/
int fd_manager(int mode)
{
static int index = 0;
char *index_itoa;
char *path;
int fd;
if (mode > 0)
close(mode);
if (mode)
{
index--;
return (0);
}
path = ft_calloc(sizeof(char), 24 + 3);
if (!path)
return (-1);
index_itoa = ft_itoa(index);
if (!index_itoa)
free(path);
if (!index_itoa)
return (-1);
index++;
strcat(path, "/tmp/.minishell-heredoc-");
strcat(path, index_itoa);
fd = open(path, O_RDONLY | O_WRONLY | O_TRUNC | O_CREAT, 0644);
return (fd);
}
static int get_input(char *delimiter, int fd)
{
char *line;
int status;
printf("%s | ", delimiter);
line = readline("heredoc> ");
while (ft_strcmp(line, delimiter))
{
status = write(fd, line, ft_strlen(line));
if (status == -1)
fd_manager(fd);
if (status == -1)
return (-1);
status = write(fd, "\n", 1);
if (status == -1)
fd_manager(fd);
if (status == -1)
return (-1);
free(line);
line = readline("heredoc> ");
}
free(line);
status = write(fd, "\0", 1);
if (status == -1)
fd_manager(fd);
if (status == -1)
return (-1);
return (0);
}
int ft_heredoc(char *delimiter)
{
int fork_pid;
int tmp_fd;
int status;
char *line;
int fd;
tmp_fd = open("/tmp/.minishell-heredoc", O_RDONLY | O_WRONLY | O_TRUNC | O_CREAT, 0644);
if (tmp_fd == -1)
fd = fd_manager(0);
if (fd == -1)
{
fd_manager(-1);
return (-1);
}
fork_pid = fork();
if (fork_pid == -1)
{
close(tmp_fd);
fd_manager(fd);
return (-1);
}
if (!fork_pid)
{
line = readline("heredoc> ");
while (ft_strcmp(line, delimiter))
{
status = write(tmp_fd, line, ft_strlen(line));
status = write(tmp_fd, "\n", 1);
free(line);
line = readline("heredoc> ");
}
free(line);
status = write(tmp_fd, "\0", 1);
if (status == -1)
{
close(tmp_fd);
return (-1);
}
get_input(delimiter, fd);
exit(0);
}
else
waitpid(fork_pid, NULL, 0);
return (tmp_fd);
return (fd);
}