42_minishell/parse/cmds_parse.c
2023-03-10 12:32:39 +01:00

129 lines
2.3 KiB
C

#include "./parse_private.h"
static int ft_redirection_parse(t_data *data, char *cmd_str, t_cmd *cmd)
{
int fd_in;
int fd_out;
fd_in = ft_infile(data, cmd_str);
if (fd_in == -2)
return (1);
fd_out = ft_outfile(data, cmd_str);
if (fd_out == -2)
{
close(fd_in);
return (1);
}
cmd->fd_in[0] = fd_in;
cmd->fd_in[1] = -1;
cmd->fd_out[0] = fd_out;
cmd->fd_out[1] = -1;
return (0);
}
int ft_args_parse(t_data *data, char *cmd_str, t_cmd *cmd)
{
char **tab;
char *str;
size_t i;
tab = ft_split_quoted(cmd_str, ' ');
if (tab == NULL)
return (1);
i = 0;
while (tab[i] == NULL)
{
str = ft_env_filler(data, tab[i]);
if (str == NULL)
{
ft_freer_tab_ultimate(1, tab);
return (1);
}
free(tab[i]);
tab[i] = str;
i++;
}
cmd->args = tab;
return (0);
}
int ft_executable_parse(t_data *data, t_cmd *cmd)
{
bool own;
char *path;
path = cmd->args[0];
own = 0;
if (ft_strcmp(cmd->args[0], "env") == 0)
own = 1;
else if (ft_strcmp(cmd->args[0], "export") == 0)
own = 1;
else if (ft_strcmp(cmd->args[0], "echo") == 0)
own = 1;
else if (ft_strcmp(cmd->args[0], "unset") == 0)
own = 1;
else if (ft_strcmp(cmd->args[0], "exit") == 0)
own = 1;
else if (ft_strcmp(cmd->args[0], "pwd") == 0)
own = 1;
else if (ft_strcmp(cmd->args[0], "cmd") == 0)
own = 1;
if (own == 0)
path = ft_get_executable(data->env, cmd->args[0]);
cmd->own_cmd = own;
cmd->executable = path;
return (own);
}
int ft_cmd_parser(t_data *data, char *cmd_str)
{
t_cmd *cmd;
t_list *element;
cmd = ft_calloc(sizeof(t_cmd), 1);
if (cmd == NULL)
{
ft_eprintf("minishell: malloc failed\n");
return (1);
}
if (ft_redirection_parse(data, cmd_str, cmd))
return (1);
if (ft_args_parse(data, cmd_str, cmd))
{
ft_cmddel(cmd);
return (1);
}
ft_executable_parse(data, cmd);
element = ft_lstnew(cmd);
if (element == NULL)
{
ft_cmddel(cmd);
return (1);
}
ft_lstadd_back(data->cmds, element);
return (0);
}
int ft_cmds_parser(t_data *data, const char *line)
{
char **tab;
size_t i;
tab = ft_split_quoted(line, '|');
if (tab == NULL)
{
ft_eprintf("minishell: malloc failed\n");
return (1);
}
i = 0;
while (tab[i] != NULL)
{
ft_cmd_parser(data, tab[i]);
i++;
}
ft_add_fd(((t_cmd *) (*data->cmds)->content)->fd_in, 0);
ft_add_fd(((t_cmd *) ((ft_lstlast(*data->cmds))->content))->fd_out, 1);
ft_freer_tab_ultimate(1, tab);
return (0);
}