nicolas-arnaud
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Minishell
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moved functions

master
narnaud 3 years ago
parent
0e5b101969
commit
beb2041c53
6 changed files with 157 additions and 146 deletions
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  1. 45
      caller.c
  2. 35
      lexer.c
  3. 116
      minishell.c
  4. 11
      minishell.h
  5. 31
      parser.c
  6. 45
      utils.c

45
caller.c
View File

@ -6,7 +6,7 @@
/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/03 11:48:16 by narnaud #+# #+# */
/* Updated: 2022/05/05 20:52:22 by narnaud ### ########.fr */
/* Updated: 2022/05/06 11:22:52 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
@ -70,3 +70,46 @@ void exe(t_datas *datas, t_command *cmd)
}
}
}
pid_t caller(t_datas *datas, t_command *cmd)
{
pid_t pid;
pid = fork();
if (!pid)
{
if (cmd->fd[0])
dup2(cmd->fd[0], STDIN_FILENO);
if (cmd->fd[1])
dup2(cmd->fd[1], STDOUT_FILENO);
if (builtin_call(datas, cmd) == -1)
exe(datas, cmd);
exit(EXIT_SUCCESS);
}
return pid;
}
int piper(t_datas *datas, t_command *cmd)
{
int pip[2];
int status;
pid_t pid;
if (cmd->fd[1] == 0 && cmd->next && cmd->next->fd[0] == 0)
{
pipe(pip);
cmd->fd[1] = pip[1];
cmd->next->fd[0] = pip[0];
}
pid = caller(datas, cmd);
if (cmd->fd[1])
close(cmd->fd[1]);
if (cmd->next)
piper(datas, cmd->next);
waitpid(pid, &status, 0);
handle_status(datas, status);
if (cmd->fd[0])
close(cmd->fd[0]);
return (1);
}

35
lexer.c
View File

@ -6,7 +6,7 @@
/* By: mea <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 13:44:57 by narnaud #+# #+# */
/* Updated: 2022/05/05 15:41:06 by mea ### ########.fr */
/* Updated: 2022/05/06 11:19:26 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
@ -92,6 +92,7 @@ int replace_var(t_datas *datas, char **line, char *tmp, int tmp_i)
char *var_name;
char *value;
char **env;
i = 1;
if ((*line)[1] == '?')
{
@ -152,3 +153,35 @@ int check_state(t_lexer *lex, char **line)
}
return (0);
}
t_token *lexer(t_datas *datas, char *line)
{
t_lexer *lex;
char *tmp;
int tmp_i;
lex = ft_calloc(1, sizeof *lex);
lex->state = ROOT_ST;
tmp = ft_calloc(1024, sizeof *tmp);
tmp_i = 0;
while (*line)
{
if (check_state(lex, &line))
continue;
if (lex->state != S_QUOTE_ST && *line == '$')
tmp_i = replace_var(datas, &line, tmp, tmp_i);
if (check_register(lex, &line, tmp))
{
tmp_i = 0;
ft_bzero(tmp, 1024);
continue ;
}
tmp[tmp_i] = *line;
line++;
tmp_i++;
}
create_token(lex, tmp);
return (lex->tokens);
}

116
minishell.c
View File

@ -6,125 +6,11 @@
/* By: mea <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 12:14:09 by narnaud #+# #+# */
/* Updated: 2022/05/05 20:53:48 by narnaud ### ########.fr */
/* Updated: 2022/05/06 11:23:19 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
# include "minishell.h"
void handle_status(t_datas *datas, int status)
{
if (WIFSIGNALED(status))
{
datas->exit_code = 128 + WTERMSIG(status);
if (datas->exit_code == 131)
printf("Quit: 3\n");
}
else
datas->exit_code = WEXITSTATUS(status);
}
pid_t caller(t_datas *datas, t_command *cmd)
{
pid_t pid;
pid = fork();
if (!pid)
{
if (cmd->fd[0])
dup2(cmd->fd[0], STDIN_FILENO);
if (cmd->fd[1])
dup2(cmd->fd[1], STDOUT_FILENO);
if (builtin_call(datas, cmd) == -1)
exe(datas, cmd);
exit(EXIT_SUCCESS);
}
return pid;
}
int piper(t_datas *datas, t_command *cmd)
{
int pip[2];
int status;
pid_t pid;
if (cmd->fd[1] == 0 && cmd->next && cmd->next->fd[0] == 0)
{
pipe(pip);
cmd->fd[1] = pip[1];
cmd->next->fd[0] = pip[0];
}
pid = caller(datas, cmd);
if (cmd->fd[1])
close(cmd->fd[1]);
if (cmd->next)
piper(datas, cmd->next);
waitpid(pid, &status, 0);
handle_status(datas, status);
if (cmd->fd[0])
close(cmd->fd[0]);
return (1);
}
t_command *parser(t_datas *datas, t_token *tok, t_command *prev)
{
int i;
t_command *cmd;
if (!tok)
return (NULL);
cmd = ft_calloc(1, sizeof(t_command));
if (prev)
cmd->prev = prev;
i = 0;
cmd->argv = ft_calloc(count_arguments(tok) + 1, sizeof(char *));
while(tok && tok->type != PIPE)
{
if (tok->type)
update_redir(datas, cmd, tok);
else
cmd->argv[i++] = tok->value;
tok = tok->next;
}
if (DEBUG)
printf("######\n->cmd : %s, in_fd : %d, out_fd : %d\n", \
cmd->argv[0], cmd->fd[0], cmd->fd[1]);
cmd->argv[i] = NULL;
if (tok && tok->type == PIPE)
cmd->next = parser(datas, tok->next, cmd);
return(cmd);
}
t_token *lexer(t_datas *datas, char *line)
{
t_lexer *lex;
char *tmp;
int tmp_i;
lex = ft_calloc(1, sizeof *lex);
lex->state = ROOT_ST;
tmp = ft_calloc(1024, sizeof *tmp);
tmp_i = 0;
while (*line)
{
if (check_state(lex, &line))
continue;
if (lex->state != S_QUOTE_ST && *line == '$')
tmp_i = replace_var(datas, &line, tmp, tmp_i);
if (check_register(lex, &line, tmp))
{
tmp_i = 0;
ft_bzero(tmp, 1024);
continue ;
}
tmp[tmp_i] = *line;
line++;
tmp_i++;
}
create_token(lex, tmp);
return (lex->tokens);
}
int main(int argc, char **argv, char **envp)
{
t_command *cmd;

11
minishell.h
View File

@ -6,7 +6,7 @@
/* By: mea <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 13:50:44 by narnaud #+# #+# */
/* Updated: 2022/05/05 20:46:00 by narnaud ### ########.fr */
/* Updated: 2022/05/06 11:38:29 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
@ -52,6 +52,7 @@ int is_empty(char *line);
void halt(int ret_code);
void termios(int ctl);
void sigs_handler(int sig_num);
void handle_status(t_datas *datas, int status);
// ----------------------------------Builtins.c
int close_minishell(int exit_code);
@ -69,6 +70,9 @@ int ft_export(t_datas *datas, t_command *cmd);
void exe(t_datas *datas, t_command *cmd);
int builtin_call(t_datas *datas, t_command *cmd);
int is_builtin(char *cmd);
pid_t caller(t_datas *datas, t_command *cmd);
int piper(t_datas *datas, t_command *cmd);
// ----------------------------------Parser.c
typedef enum e_type
@ -87,9 +91,10 @@ typedef struct s_token
t_type type;
struct s_token *next;
} t_token;
char *expend_str(t_datas *datas, char *line);
size_t count_arguments(t_token *tok);
void update_redir(t_datas *datas, t_command *cmd, t_token *tok);
t_command *parser(t_datas *datas, t_token *tok, t_command *prev);
// ----------------------------------Lexer.c
@ -114,6 +119,6 @@ int create_token(t_lexer *lex, char str[]);
int check_register(t_lexer *lex, char **line, char *tmp);
int replace_var(t_datas *datas, char **line, char *tmp, int tmp_i);
int check_state(t_lexer *lex, char **line);
char *expend_str(t_datas *datas, char *line);
t_token *lexer(t_datas *datas, char *line);
#endif

31
parser.c
View File

@ -6,7 +6,7 @@
/* By: mea <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/02 16:09:25 by narnaud #+# #+# */
/* Updated: 2022/05/05 14:30:11 by mea ### ########.fr */
/* Updated: 2022/05/06 11:21:18 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
@ -92,4 +92,33 @@ void update_redir(t_datas *datas, t_command *cmd, t_token *tok)
}
}
t_command *parser(t_datas *datas, t_token *tok, t_command *prev)
{
int i;
t_command *cmd;
if (!tok)
return (NULL);
cmd = ft_calloc(1, sizeof(t_command));
if (prev)
cmd->prev = prev;
i = 0;
cmd->argv = ft_calloc(count_arguments(tok) + 1, sizeof(char *));
while(tok && tok->type != PIPE)
{
if (tok->type)
update_redir(datas, cmd, tok);
else
cmd->argv[i++] = tok->value;
tok = tok->next;
}
if (DEBUG)
printf("######\n->cmd : %s, in_fd : %d, out_fd : %d\n", \
cmd->argv[0], cmd->fd[0], cmd->fd[1]);
cmd->argv[i] = NULL;
if (tok && tok->type == PIPE)
cmd->next = parser(datas, tok->next, cmd);
return(cmd);
}

45
utils.c
View File

@ -6,7 +6,7 @@
/* By: mea <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/05/03 08:57:53 by narnaud #+# #+# */
/* Updated: 2022/05/05 16:33:21 by mea ### ########.fr */
/* Updated: 2022/05/06 11:39:05 by narnaud ### ########.fr */
/* */
/* ************************************************************************** */
@ -23,10 +23,39 @@ int is_empty(char *line)
return (1);
}
void handle_status(t_datas *datas, int status)
{
if (WIFSIGNALED(status))
{
datas->exit_code = 128 + WTERMSIG(status);
if (datas->exit_code == 131)
printf("Quit: 3\n");
}
else
datas->exit_code = WEXITSTATUS(status);
}
void nothing(int sig_num)
{
(void)sig_num;
}
void sigs_handler(int sig_num)
{
if (sig_num == SIGINT)
printf("\n");
rl_on_new_line();
rl_replace_line("", 0);
rl_redisplay();
return ;
}
void halt(int ret_code)
{
printf("exit\n");
exit(ret_code);
}
void termios(int ctl)
{
struct termios termios_p;
@ -51,18 +80,4 @@ void termios(int ctl)
tcsetattr(tty, TCSANOW, &termios_p);
}
void sigs_handler(int sig_num)
{
if (sig_num == SIGINT)
printf("\n");
rl_on_new_line();
rl_replace_line("", 0);
rl_redisplay();
return ;
}
void halt(int ret_code)
{
printf("exit\n");
exit(ret_code);
}

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