137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* exec_heredoc.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/02/12 09:53:26 by lderidde #+# #+# */
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/* Updated: 2025/02/12 09:53:26 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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void expander_here(char **str, t_ast_n *node)
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{
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char *new;
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int i;
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int j;
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int len;
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i = -1;
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len = get_dup_len(*str, node);
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new = ft_calloc(len + 1, sizeof(char));
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if (!new)
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return ;
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j = 0;
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while ((*str)[j] && ++i < len)
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{
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if ((*str)[j] != '$')
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new[i] = (*str)[j++];
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else if ((*str)[j] == '$' && execvalid_next((*str)[j + 1]))
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{
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ft_strlcat(new, execextract_env(&((*str)[j]), node->msh->env), -1);
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i = ft_strlen(new) - 1;
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while ((*str)[++j] && execis_validchar((*str)[j]))
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continue ;
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}
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}
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ft_free(str);
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*str = new;
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}
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void here_remove_quote(t_ast_n *node, int j, char c)
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{
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char *new;
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int i;
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int k;
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int len;
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i = 0;
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k = 0;
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len = ft_strlen(node->files[j]);
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new = ft_calloc(len - 1, sizeof(char));
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while (i < len - 2)
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{
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if ((&(node->files[j][k]) == ft_strchr(node->files[j], c)) ||
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(&(node->files[j][k]) == ft_strrchr(node->files[j], c)))
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{
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k++;
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}
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else
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new[i++] = node->files[j][k++];
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}
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ft_free(&node->files[j]);
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node->files[j] = new;
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}
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int ifhere_remove_quote(t_ast_n *node, int j)
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{
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char c;
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int ret;
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ret = 0;
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if (!ft_strchr(node->files[j], '\'') && !ft_strchr(node->files[j], '\"'))
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c = 0;
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else if (!ft_strchr(node->files[j], '\"'))
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c = '\'';
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else if (!ft_strchr(node->files[j], '\''))
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c = '\"';
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else if (ft_strchr(node->files[j], '\'') < ft_strchr(node->files[j], '\"'))
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c = '\'';
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else
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c = '\"';
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if (c && (ft_strchr(node->files[j], c) != ft_strrchr(node->files[j], c)))
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here_remove_quote(node, j, c);
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if (c)
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ret = 1;
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return (ret);
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}
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void read_input(t_ast_n *node, int j)
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{
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char *str;
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int check;
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check = ifhere_remove_quote(node, j);
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str = get_next_line(node->msh->here_fd, 0);
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while (str && ft_strncmp(str, node->files[j], -1) != 0)
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{
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if (!check)
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expander_here(&str, node);
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write(1, str, ft_strlen(str));
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ft_free(&str);
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str = get_next_line(node->msh->here_fd, 0);
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}
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if (!str)
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get_next_line(node->msh->here_fd, 1);
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ft_free(&str);
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}
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void here_doc(t_ast_n *node, int i)
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{
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pid_t pid;
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pipe(node->fds);
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pid = fork();
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if (pid == 0)
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{
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dup2(node->fds[1], STDOUT_FILENO);
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close(node->fds[0]);
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close(node->fds[1]);
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read_input(node, i);
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free_child(node->msh);
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exit(EXIT_SUCCESS);
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}
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else if (pid > 0)
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{
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close(node->fds[1]);
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dup2(node->fds[0], STDIN_FILENO);
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close(node->fds[0]);
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waitpid(pid, NULL, 0);
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}
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else if (pid < 0)
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exit (err_msg_cmd("fork", NULL, "failed to fork", 1));
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}
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