60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* cd.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/01/24 14:31:49 by lderidde #+# #+# */
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/* Updated: 2025/02/03 13:12:47 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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void pwd_update(t_ast_n *head, char *src, char *dest)
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{
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set_var_env("OLDPWD", src, head->msh);
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set_var_env("PWD", dest, head->msh);
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free_null_ptr(src);
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free_null_ptr(dest);
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}
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int exec_cd(char *path, t_ast_n *head)
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{
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char *src;
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char *dest;
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src = getcwd(NULL, 0);
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if (chdir(path) == -1)
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return (err_msg_cmd("cd", path, strerror(errno), EXIT_FAILURE));
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dest = getcwd(NULL, 0);
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pwd_update(head, src, dest);
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return (0);
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}
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int builtin_cd(char **arg, t_ast_n *head)
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{
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char *path;
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if (count_var(arg) == 1 || (count_var(arg) == 2 && ft_strncmp(arg[1], "~", 1) == 0))
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{
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path = get_var_value("HOME", head->msh->env);
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if (!path)
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return (err_msg_cmd("cd", NULL, "HOME not set\n", EXIT_FAILURE));
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return (exec_cd(path, head));
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}
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if (count_var(arg) > 2)
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return (err_msg_cmd("cd", NULL, "too many arguments\n", EXIT_FAILURE));
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if (ft_strncmp(arg[1], "-", 1) == 0)
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{
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path = get_var_value("OLDPWD", head->msh->env);
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if (path)
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ft_printf("%s\n", path);
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if (!path)
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return (err_msg_cmd("cd", NULL, "OLDPWD not set\n", EXIT_FAILURE));
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return (exec_cd(path, head));
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}
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return (exec_cd(arg[1], head));
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}
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