ca marche a peu pres, il faut gerer la fermeture des fd entre pipes et redirections

srcs/parser_hugo.c

@@ -0,0 +1,75 @@
+
+#include "minishell.h"
+
+void	**cmd_path(char **argv, char **envp)
+{
+	int		i;
+	char	**path;
+	char	*cmd;
+
+	i = 0;
+	while (envp[i] && ft_strncmp(envp[i], "PATH=", 5))
+		i++;
+	path = ft_split(envp[i] + 5, ':'); // 5 = lentgh of "PATH="
+	i = -1;
+	while (*path && i != 0)
+	{
+		cmd = ft_strjoin(path[0], "/");
+		cmd = ft_strjoin(cmd, argv[0]);
+		i = access(cmd, X_OK);
+		path++;
+	}
+	argv[0] = cmd;
+	return (NULL);
+}
+
+int	handle_fd(char **input, int i, int fdin, int *fd_in, int *fd_out)
+{
+	int		*pipes_fd;
+	int		next_in;
+	char	*tmp;
+
+	*fd_in = fdin;
+	*fd_out = 1;
+	next_in = 0;
+	if (input[i + 1])
+	{
+		pipes_fd = calloc(2, sizeof(int));
+		pipe(pipes_fd);
+		*fd_out = pipes_fd[1];
+		next_in = pipes_fd[0];
+	}
+	tmp = ft_strchr(input[i], '>');
+	if (tmp)
+	{
+		tmp[0] = '\0';
+		tmp = ft_strtrim(tmp + 2, " "); // +2 for "> "
+		*fd_out = open(tmp, O_WRONLY | O_TRUNC);
+		next_in = *fd_out;
+	}
+	return (next_in);
+}
+
+t_list	*parser(char *input, char **envp)
+{
+	t_list	*cmd;
+	t_cmd	*element;
+	char	**input_split;
+	int		i;
+	int		tmp_fd;
+
+	input_split = ft_split(input, '|');
+	tmp_fd = 0;
+	i = 0;
+	cmd = NULL;
+	while (input_split[i])
+	{
+		element = calloc(1, sizeof(t_cmd));
+		tmp_fd = handle_fd(input_split, i, tmp_fd, &(element->fd_in), &(element->fd_out));
+		element->argv = ft_split(input_split[i], ' ');
+		element->builtin = cmd_path(element->argv, envp);
+		ft_lstadd_back(&cmd, ft_lstnew(element));
+		i++;
+	}
+	return (cmd);
+}