merge hugogogo with master
This commit is contained in:
hugogogo
@@ -12,40 +12,255 @@
|
||||
|
||||
#include "minishell.h"
|
||||
|
||||
// A quoi bon un arbre binaire ? Je ne vois plus l'utilité.
|
||||
|
||||
/* typedef struct s_binary_tree
|
||||
{
|
||||
char *content;
|
||||
struct s_binary_tree *sub;
|
||||
struct s_binary_tree *sibling;
|
||||
enum e_token_id id;
|
||||
} t_binary_tree; */
|
||||
size_t count_pipes(t_token *token);
|
||||
t_cmd **create_cmd(t_token *token_list, size_t cmd_nbr);
|
||||
void handle_argv(t_token *token, t_cmd **cmd, size_t cmd_nbr);
|
||||
void handle_path(t_cmd **cmd_arr, char **envp);
|
||||
void handle_fd(t_token *token, t_cmd **cmd_arr);
|
||||
void fd_heredoc(t_token *token, t_cmd *cmd);
|
||||
void fd_redirection(t_token *token, t_cmd *cmd);
|
||||
void find_path(char **argv, char **envp);
|
||||
int handle_builtin(t_cmd *cmd);
|
||||
int fill_builtin(t_cmd *cmd, int (*builtin)(int, char **, t_all *));
|
||||
int next_cmd(t_token *token);
|
||||
int is_redirection(enum e_token_id id);
|
||||
|
||||
t_cmd **parsing(t_token *token_list, char **envp)
|
||||
{
|
||||
t_cmd **cmd_arr;
|
||||
size_t cmd_nbr;
|
||||
|
||||
/* t_binary_tree *syntax_tree;
|
||||
|
||||
syntax_tree = ft_calloc(1, sizeof *syntax_tree);
|
||||
if (!syntax_tree)
|
||||
return (0); //WIP ERROR */
|
||||
|
||||
if (!valid_syntax(token_list))
|
||||
return (NULL);
|
||||
// Pipes count (determine cmd_nbr)
|
||||
|
||||
// Struct CMD alloc/fill
|
||||
cmd_arr = fill_cmd(token_list, envp);
|
||||
|
||||
// 2.9.1 - 2) Expansion
|
||||
|
||||
// 2.9.1 - 3) Redirection
|
||||
|
||||
cmd_nbr = count_pipes(token_list);
|
||||
cmd_arr = create_cmd(token_list, cmd_nbr);
|
||||
// cmd_expansion(cmd_arr, envp);
|
||||
handle_argv(token_list, cmd_arr, cmd_nbr);
|
||||
handle_path(cmd_arr, envp);
|
||||
handle_fd(token_list, cmd_arr);
|
||||
return (cmd_arr);
|
||||
}
|
||||
|
||||
size_t count_pipes(t_token *token)
|
||||
{
|
||||
size_t nb;
|
||||
|
||||
nb = 0;
|
||||
while (token)
|
||||
{
|
||||
if (token->id == T_PIPE)
|
||||
nb++;
|
||||
token = token->next;
|
||||
}
|
||||
return (nb + 1);
|
||||
}
|
||||
|
||||
t_cmd **create_cmd(t_token *token_list, size_t cmd_nbr)
|
||||
{
|
||||
t_cmd **cmd_arr;
|
||||
size_t i;
|
||||
|
||||
(void)token_list;
|
||||
cmd_arr = ft_calloc(cmd_nbr + 1, sizeof(t_cmd *));
|
||||
cmd_arr[cmd_nbr] = NULL;
|
||||
i = 0;
|
||||
while (i < cmd_nbr)
|
||||
{
|
||||
cmd_arr[i] = ft_calloc(1, sizeof(t_cmd));
|
||||
ft_bzero(cmd_arr[i], sizeof(t_cmd));
|
||||
i++;
|
||||
}
|
||||
return (cmd_arr);
|
||||
}
|
||||
|
||||
int is_redirection(enum e_token_id id)
|
||||
{
|
||||
if (id == T_LESS) // <
|
||||
return (1);
|
||||
else if (id == T_GREAT) // >
|
||||
return (1);
|
||||
else if (id == T_DLESS) // <<
|
||||
return (1);
|
||||
else if (id == T_DGREAT) // >>
|
||||
return (1);
|
||||
else
|
||||
return (0);
|
||||
}
|
||||
|
||||
// count nbr word in cmd, minus redirection and heredoc
|
||||
int next_cmd(t_token *token)
|
||||
{
|
||||
int i;
|
||||
|
||||
i = 0;
|
||||
while (token && token->id != T_PIPE)
|
||||
{
|
||||
if (is_redirection(token->id))
|
||||
i--;
|
||||
else
|
||||
i++;
|
||||
token = token->next;
|
||||
}
|
||||
if (token && token->id == T_PIPE)
|
||||
token = token->next;
|
||||
return (i);
|
||||
}
|
||||
|
||||
void handle_argv(t_token *token, t_cmd **cmd, size_t cmd_nbr)
|
||||
{
|
||||
int argc;
|
||||
int j;
|
||||
int i;
|
||||
int redirection;
|
||||
|
||||
i = 0;
|
||||
while (cmd_nbr)
|
||||
{
|
||||
argc = next_cmd(token);
|
||||
cmd[i]->argv = calloc(argc + 1, sizeof(char *));
|
||||
cmd[i]->argv[argc] = NULL;
|
||||
j = 0;
|
||||
redirection = is_redirection(token->id);
|
||||
while (token && token->id != T_PIPE)
|
||||
{
|
||||
if (!redirection && token->id == T_WORD)
|
||||
{
|
||||
cmd[i]->argv[j] = ft_strdup(token->content);
|
||||
j++;
|
||||
}
|
||||
redirection = is_redirection(token->id);
|
||||
token = token->next;
|
||||
}
|
||||
if (token && token->id == T_PIPE)
|
||||
token = token->next;
|
||||
cmd_nbr--;
|
||||
i++;
|
||||
}
|
||||
}
|
||||
|
||||
int fill_builtin(t_cmd *cmd, int (*builtin)(int, char **, t_all *))
|
||||
{
|
||||
cmd->builtin_command = &builtin;
|
||||
return (1);
|
||||
}
|
||||
|
||||
int handle_builtin(t_cmd *cmd)
|
||||
{
|
||||
if (!ft_strncmp(cmd->argv[0], "echo", 4))
|
||||
return (fill_builtin(cmd, &builtin_echo));
|
||||
// else if (!ft_strncmp(cmd->argv[0], "cd", 2))
|
||||
// return (fill_builtin(cmd, &builtin_cd));
|
||||
// else if (!ft_strncmp(cmd->argv[0], "pwd", 3))
|
||||
// return (fill_builtin(cmd, &builtin_pwd));
|
||||
// else if (!ft_strncmp(cmd->argv[0], "export", 6))
|
||||
// return (fill_builtin(cmd, &builtin_export));
|
||||
// else if (!ft_strncmp(cmd->argv[0], "unset", 5))
|
||||
// return (fill_builtin(cmd, &builtin_unset));
|
||||
else if (!ft_strncmp(cmd->argv[0], "env", 3))
|
||||
return (fill_builtin(cmd, &builtin_env));
|
||||
else if (!ft_strncmp(cmd->argv[0], "exit", 4))
|
||||
return (fill_builtin(cmd, &builtin_exit));
|
||||
return (0);
|
||||
}
|
||||
|
||||
void find_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++;
|
||||
}
|
||||
if (!(*path))
|
||||
exit(0); // gerer erreur
|
||||
argv[0] = cmd;
|
||||
}
|
||||
|
||||
void handle_path(t_cmd **cmd_arr, char **envp)
|
||||
{
|
||||
int i;
|
||||
|
||||
i = 0;
|
||||
while (cmd_arr[i])
|
||||
{
|
||||
if (!handle_builtin(cmd_arr[i]))
|
||||
find_path(cmd_arr[i]->argv, envp);
|
||||
i++;
|
||||
}
|
||||
}
|
||||
|
||||
void fd_redirection(t_token *token, t_cmd *cmd)
|
||||
{
|
||||
int flag;
|
||||
|
||||
if (token->id == T_LESS) // '<'
|
||||
{
|
||||
flag = O_RDONLY | O_CREAT;
|
||||
if (cmd->fd_in != 0)
|
||||
close(cmd->fd_in);
|
||||
cmd->fd_in = open(token->next->content, flag);
|
||||
}
|
||||
else if (token->id == T_GREAT) // '>'
|
||||
{
|
||||
flag = O_WRONLY | O_CREAT | O_TRUNC;
|
||||
cmd->fd_out = open(token->next->content, flag, S_IRWXU);
|
||||
}
|
||||
else if (token->id == T_DGREAT) // '>>'
|
||||
{
|
||||
flag = O_WRONLY | O_CREAT | O_APPEND;
|
||||
cmd->fd_out = open(token->next->content, flag, S_IRWXU);
|
||||
}
|
||||
}
|
||||
|
||||
void fd_heredoc(t_token *token, t_cmd *cmd)
|
||||
{
|
||||
(void)token;
|
||||
(void)cmd;
|
||||
}
|
||||
|
||||
void handle_fd(t_token *token, t_cmd **cmd_arr)
|
||||
{
|
||||
int *pipes_fd;
|
||||
int i;
|
||||
|
||||
i = 0;
|
||||
while (cmd_arr[i])
|
||||
{
|
||||
cmd_arr[i]->fd_out = 1;
|
||||
while (token && token->id != T_PIPE)
|
||||
{
|
||||
if (token->id == T_DGREAT) // '<<'
|
||||
fd_heredoc(token, cmd_arr[i]);
|
||||
else
|
||||
fd_redirection(token, cmd_arr[i]);
|
||||
token = token->next;
|
||||
}
|
||||
if (token && token->id == T_PIPE)
|
||||
{
|
||||
token = token->next;
|
||||
pipes_fd = calloc(2, sizeof(int));
|
||||
pipe(pipes_fd);
|
||||
if (cmd_arr[i]->fd_out == 1)
|
||||
cmd_arr[i]->fd_out = pipes_fd[1];
|
||||
else
|
||||
close(pipes_fd[1]);
|
||||
cmd_arr[i + 1]->fd_in = pipes_fd[0];
|
||||
}
|
||||
i++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* -------------------------------------------------------
|
||||
The grammar symbols
|
||||
------------------------------------------------------- */
|
||||
|
||||
Reference in New Issue
Block a user