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update: splitted stuff into differnt files for run_ast.c

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maix0 2024-09-14 12:46:57 +00:00
parent 5fb84a3a82
commit 392fd77eca
22 changed files with 1498 additions and 1257 deletions
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175
exec/src/run_ast/run_subshell.c Normal file
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@ -0,0 +1,175 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* run_subshell.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/09/14 12:35:02 by maiboyer #+# #+# */
/* Updated: 2024/09/14 12:35:58 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "exec/_run_ast.h"
#include "me/mem/mem.h"
#include "me/str/str.h"
#include <sys/wait.h>
#include <errno.h>
t_error run_subshell(t_ast_subshell *subshell, t_state *state,
t_cmd_pipe cmd_pipe, t_subshell_result *out)
{
struct s_subshell_info info;
t_pipe spipe;
t_usize i;
t_vec_str filename_args;
t_ast_node red;
t_vec_ast redirection;
t_fd *red_fd;
t_pipe heredoc_pipe;
t_pid forked;
int code;
int status;
if (subshell == NULL || state == NULL || out == NULL)
return (ERROR);
mem_set_zero(&info, sizeof(info));
info.stdin = cmd_pipe.input;
if (cmd_pipe.create_output)
{
if (create_pipe(&spipe))
return (ERROR);
info.stdout = spipe.write;
info.ret_stdout = spipe.read;
}
i = 0;
filename_args = vec_str_new(16, str_free);
redirection = subshell->suffixes_redirections;
while (i < redirection.len)
{
red = redirection.buffer[i];
if (red == NULL)
continue ;
vec_str_free(filename_args);
filename_args = vec_str_new(16, str_free);
if (red->kind == AST_FILE_REDIRECTION)
{
if (red->data.file_redirection.op == AST_REDIR_INPUT)
{
if (info.stdin != NULL)
close_fd(info.stdin);
info.stdin = NULL;
if (_ast_into_str(red->data.file_redirection.output, state,
&filename_args))
return (ERROR);
if (filename_args.len != 1)
return (vec_str_free(filename_args), ERROR);
red_fd = open_fd(filename_args.buffer[i], FD_READ, O_CLOEXEC,
0);
if (red_fd == NULL)
return (vec_str_free(filename_args), ERROR);
info.stdin = red_fd;
}
if (red->data.file_redirection.op == AST_REDIR_OUTPUT)
{
if (info.stdout != NULL)
close_fd(info.stdout);
info.stdout = NULL;
if (_ast_into_str(red->data.file_redirection.output, state,
&filename_args))
return (ERROR);
if (filename_args.len != 1)
return (vec_str_free(filename_args), ERROR);
red_fd = open_fd(filename_args.buffer[i], FD_WRITE,
O_TRUNC | O_CREAT | O_CLOEXEC,
FP_ALL_READ | FP_ALL_WRITE);
if (red_fd == NULL)
return (vec_str_free(filename_args), ERROR);
info.stdout = red_fd;
}
if (red->data.file_redirection.op == AST_REDIR_APPEND)
{
if (info.stdout != NULL)
close_fd(info.stdout);
info.stdout = NULL;
if (_ast_into_str(red->data.file_redirection.output, state,
&filename_args))
return (ERROR);
if (filename_args.len != 1)
return (vec_str_free(filename_args), ERROR);
red_fd = open_fd(filename_args.buffer[i], FD_WRITE,
O_TRUNC | O_CREAT | O_CLOEXEC,
FP_ALL_READ | FP_ALL_WRITE);
if (red_fd == NULL)
return (vec_str_free(filename_args), ERROR);
info.stdout = red_fd;
}
if (red->data.file_redirection.op == AST_REDIR_DUP_INPUT
|| red->data.file_redirection.op == AST_REDIR_DUP_OUTPUT
|| red->data.file_redirection.op == AST_REDIR_CLOSE_INPUT
|| red->data.file_redirection.op == AST_REDIR_CLOSE_OUTPUT
|| red->data.file_redirection.op == AST_REDIR_INPUT_OUTPUT
|| red->data.file_redirection.op == AST_REDIR_OUTPUT_CLOBBER)
return (ERROR);
}
if (red->kind == AST_HEREDOC_REDIRECTION)
{
if (red->data.heredoc_redirection.op == AST_REDIR_HEREDOC)
{
if (info.stdout != NULL)
close_fd(info.stdout);
info.stdout = NULL;
if (create_pipe(&heredoc_pipe))
return (ERROR);
put_string_fd(heredoc_pipe.write,
red->data.heredoc_redirection.content);
close_fd(heredoc_pipe.write);
info.stdin = heredoc_pipe.read;
}
if (red->data.heredoc_redirection.op == AST_REDIR_HEREDOC_INDENT)
return (ERROR);
}
i++;
}
vec_str_free(filename_args);
forked = fork();
if (forked == 0)
{
if (info.ret_stdout != NULL)
close_fd(info.ret_stdout);
if (info.stdin != NULL)
(dup2(info.stdin->fd, 0), close_fd(info.stdin));
if (info.stdout != NULL)
(dup2(info.stdout->fd, 1), close_fd(info.stdout));
if (info.stderr != NULL)
(dup2(info.stderr->fd, 2), close_fd(info.stderr));
i = 0;
code = 0;
while (i < subshell->body.len)
{
if (_run_get_exit_code(subshell->body.buffer[i], state, &code))
me_exit(127);
i++;
}
me_exit(code);
}
if (forked == -1)
return (ERROR);
out->exit = -1;
out->pid = forked;
if (info.stdin != NULL)
(dup2(info.stdin->fd, 0), close_fd(info.stdin));
if (info.stdout != NULL)
(dup2(info.stdout->fd, 1), close_fd(info.stdout));
if (info.stderr != NULL)
(dup2(info.stderr->fd, 2), close_fd(info.stderr));
if (cmd_pipe.create_output || cmd_pipe.input != NULL)
return (out->stdout = info.ret_stdout, NO_ERROR);
if (waitpid(forked, &status, 0) == -1)
return (ERROR);
if (WIFEXITED(status))
out->exit = WEXITSTATUS(status);
if (WIFSIGNALED(status))
out->exit = WTERMSIG(status);
return (NO_ERROR);
}