Chichonos
/
Minishell-mea
forked from nicolas-arnaud/Minishell
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

rework: caller

master
narnaud 3 years ago
parent
b12579b7a8
commit
7eda051f5c
6 changed files with 115 additions and 20 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 2
      Makefile
  2. 58
      caller.c
  3. 2
      lexer.c
  4. 47
      minishell.c
  5. 11
      minishell.h
  6. 11
      parser.c

2
Makefile
View File

@ -1,6 +1,6 @@
NAME = minishell
LIBFT = libft.a
SRCS = minishell.c lexer.c parser.c utils.c
SRCS = minishell.c lexer.c parser.c utils.c caller.c
OBJS = ${SRCS:.c=.o}
READLINE_INC = ~/.brew/opt/readline/include

58
caller.c
View File

@ -0,0 +1,58 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* caller.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/03 11:48:16 by narnaud #+# #+# */
/* Updated: 2022/05/03 13:57:06 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
/*
int command_call(char *argv[], int input_fd, int output_fd)
{
if (ft_strncmp(argv[0], "echo", 4) == 0)
return (ft_echo(argv, output_fd));
else if (ft_strncmp(argv[0], "pwd", 3) == 0)
return (ft_pwd(argv, input_fd, output_fd));
else if (ft_strncmp(argv[0], "cd", 2) == 0)
return (ft_cd(argv, input_fd, output_fd));
else if (ft_strncmp(argv[0], "export", 6) == 0)
return (ft_export(argv, input_fd, output_fd));
else if (ft_strncmp(argv[0], "unset", 5) == 0)
return (ft_unset(argv, input_fd, output_fd));
else if (ft_strncmp(argv[0], "env", 3) == 0)
return (ft_env(argv, input_fd, output_fd));
else if (ft_strncmp(argv[0], "exit", 4) == 0)
return (close_minishell(0));
else
{
errno = EINVAL;
return (-1);
}
}
*/
void exe(char *argv[], char *const envp[])
{
char **path_dirs;
char *path;
size_t path_length;
execve(argv[0], argv, envp);
path_dirs = ft_split(getenv("PATH"), ':');
while (path_dirs)
{
path_length = ft_strlen(*path_dirs) + ft_strlen(argv[0]) + 2;
path = ft_calloc(path_length, sizeof(char));
ft_memcpy(path, *path_dirs, ft_strlen(*path_dirs));
ft_memcpy(path + ft_strlen(*path_dirs),"/", 1);
ft_memcpy(path + ft_strlen(*path_dirs) + 1, argv[0], ft_strlen(argv[0]));
free(path);
execve(path, argv, envp);
path_dirs++;
}
}

2
lexer.c
View File

@ -6,7 +6,7 @@
/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 13:44:57 by narnaud #+# #+# */
/* Updated: 2022/05/03 11:42:26 by narnaud ### ########.fr */
/* Updated: 2022/05/03 11:46:33 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */

47
minishell.c
View File

@ -6,12 +6,49 @@
/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 12:14:09 by narnaud #+# #+# */
/* Updated: 2022/05/03 11:06:49 by narnaud ### ########.fr */
/* Updated: 2022/05/03 15:50:18 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
# include "minishell.h"
// Note: Pipes are broken
int caller(t_command *cmd)
{
int cmd_ret;
pid_t pid;
int pip[2];
int status;
if (cmd->next && cmd->fd[0] == 0 && cmd->next->fd[1] == 0)
{
pipe(pip);
cmd->fd[1] = pip[1];
cmd->next->fd[0] = pip[0];
}
pid = fork();
if (!pid)
{
cmd_ret = 1; //command_call(command->argv);
if (cmd_ret == 1)
{
if (cmd->fd[0])
dup2(cmd->fd[0], STDIN_FILENO);
if (cmd->fd[1])
dup2(cmd->fd[1], STDOUT_FILENO);
exe(cmd->argv, cmd->envp);
exit(1);
}
}
if (cmd->fd[1])
close(cmd->fd[1]);
if (cmd->next)
return (caller(cmd->next));
waitpid(pid, &status, 0);
return (cmd_ret);
}
t_command *parser(t_token *tok, t_command *prev)
{
int i;
@ -23,7 +60,8 @@ t_command *parser(t_token *tok, t_command *prev)
if (prev)
cmd->prev = prev;
i = 0;
cmd->argv = ft_calloc(count_arguments(tok) + 1, sizeof(char *));
cmd->argc = count_arguments(tok);
cmd->argv = ft_calloc(cmd->argc + 1, sizeof(char *));
while(tok && tok->type != PIPE)
{
if (tok->type)
@ -32,6 +70,9 @@ t_command *parser(t_token *tok, t_command *prev)
cmd->argv[i++] = tok->value;
tok = tok->next;
}
if (DEBUG)
printf("######\n->cmd : %s, argc : %d, in_fd : %d, out_fd : %d\n", \
cmd->argv[0], cmd->argc, cmd->fd[0], cmd->fd[1]);
cmd->argv[i] = NULL;
if (tok && tok->type == PIPE)
cmd->next = parser(tok->next, cmd);
@ -79,7 +120,7 @@ int launcher(t_env env)
halt(EXIT_FAILURE);
if (is_empty(line))
return (EXIT_FAILURE);
parser(lexer(line), NULL);
caller(parser(lexer(line), NULL));
add_history(line);
return (0);
}

11
minishell.h
View File

@ -6,7 +6,7 @@
/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 13:50:44 by narnaud #+# #+# */
/* Updated: 2022/05/03 11:39:52 by narnaud ### ########.fr */
/* Updated: 2022/05/03 15:40:23 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
@ -15,7 +15,7 @@
# define PIPE_MAX_SIZE 8192
# define PATHS_MAX_SIZE 126
# define PROMPT_PREFIX 0
# define DEBUG 1
# define DEBUG 0
# include "libft/libft.h"
# include <fcntl.h>
@ -39,7 +39,7 @@ void halt(int ret_code);
int is_empty(char *line);
int init_file(char *filename, int mode);
// ----------------------------------Piper.c
// ----------------------------------Caller.c
typedef struct s_env
{
int null;
@ -47,17 +47,16 @@ typedef struct s_env
typedef struct s_command
{
int argc;
char **argv;
char **envp;
int argc;
int fd[2];
int input;
int output;
char *heredoc;
struct s_command *next;
struct s_command *prev;
} t_command;
void exe(char *argv[], char *const envp[]);
// ----------------------------------Parser.c

11
parser.c
View File

@ -6,7 +6,7 @@
/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 16:09:25 by narnaud #+# #+# */
/* Updated: 2022/05/02 17:43:27 by narnaud ### ########.fr */
/* Updated: 2022/05/03 12:43:48 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
@ -17,14 +17,11 @@ size_t count_arguments(t_token *tok)
size_t ret;
ret = 0;
while (tok->value)
while (tok && tok->type != PIPE)
{
if (tok->type == WORD && tok->value[0] != '|')
if (!tok->type)
ret++;
if (tok->next)
tok = tok->next;
else
break ;
}
return (ret);
}
@ -35,7 +32,7 @@ void update_redir(t_command *cmd, t_token *tok)
{
if (cmd->fd[1])
close(cmd->fd[1]);
cmd->output = init_file(tok->value, O_TRUNC | O_WRONLY);
cmd->fd[1] = init_file(tok->value, O_TRUNC | O_WRONLY);
}
else if (tok->type == ADD)
{

Write Preview
Loading…
Cancel
Save