ok

2 files changed, 62 insertions, 2 deletions

diff --git a/src/ft_e_builtins.c b/src/ft_e_builtins.c
index 5d30b2d..4f2c551 100644
--- a/src/ft_e_builtins.c
+++ b/src/ft_e_builtins.c
@@ -17,6 +17,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <errno.h>
+
 #include "ft_f_file.h"
 #include "ft_s_destroy.h"
 #include "ft_s_lcom.h"
diff --git a/src/ft_e_externs.c b/src/ft_e_externs.c
index cbfb1f0..9b226d9 100644
--- a/src/ft_e_externs.c
+++ b/src/ft_e_externs.c
@@ -11,13 +11,72 @@
 /* ************************************************************************** */
 
 #include <libft.h>
+#include <dirent.h>
+
+#include "ft_f_fail.h"
+#include "ft_s_destroy.h"
+#include "ft_s_lcom.h"
 #include "ft_s_struct.h"
 
+static void
+	ft_search_in_path(const char *com,
+					char **envpath)
+{
+	char	**p_path;
+
+	(void)com;
+	p_path = envpath;
+	while (*p_path)
+	{
+		/* TODO: directory(3) */
+		/* opendir() | readdir() | closedir() */
+		p_path++;
+	}
+}
+
+static char
+	**ft_get_env_path(t_msh *msh)
+{
+	char	**p_env;
+	char	**envpath;
+	char	*envline;
+
+	p_env = msh->envp;
+	while (*p_env && ft_strncmp("PATH", *p_env, 4) != 0)
+	{
+		p_env++;
+	}
+	if (*p_env == NULL)
+		return (NULL);
+	envline = ft_strchr(*p_env, '=');
+	envline += 1;
+	if (*envline != '\0')
+	{
+		if (!(envpath = ft_split(envline, ':')))
+		{
+			ft_lcom_clear(&msh->curr);
+			ft_s_destroy(msh);
+			ft_fail_alloc();
+		}
+		return (envpath);
+	}
+	return (NULL);
+}
+
 void
 	ft_e_extern(t_lcom *ptr,
 				t_msh *msh)
 {
-	(void)ptr;
-	(void)msh;
+	char	**envpath;
+
+	if (ft_ischarset("/.", ptr->com[0]))
+	{
+		/* TODO: ft_get_absolute_path(ptr->com); */
+	}
+	else if ((envpath = ft_get_env_path(msh)) != NULL)
+	{
+		ft_search_in_path(ptr->com, envpath);
+		ft_delwords(envpath);
+	}
 	/* TODO: exec $PATH stuff | initiate all builtins first, even uncomplete */
 }