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exec

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This commit is contained in:
Loic Deridder
2025-01-28 15:40:22 +01:00
parent 66ebd61d6f
commit 16e351d92d
4 changed files with 95 additions and 64 deletions
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128
srcs/execution/exec.c
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@@ -6,11 +6,55 @@
/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/01/27 11:22:33 by lderidde #+# #+# */
/* Updated: 2025/01/28 10:41:39 by lderidde ### ########.fr */
/* Updated: 2025/01/28 15:39:37 by lderidde ### ########.fr */
/* */
/* ************************************************************************** */
#include "../../includes/minishell.h"
#include "minishell.h"
void handle_file(t_ast_n *node, int check)
{
int fd;
if (check == 1)
fd = open(node->infile, O_RDONLY);
else if (check == 2)
fd = open(node->outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
else if (check == 3)
fd = open(node->outfile, O_WRONLY | O_CREAT | O_APPEND, 0666);
if (fd == -1)
{
perror("open");
exit(1);
}
if (check == 1)
node->_stdin = fd;
else if (check == 2 || check == 3)
node->_stdout = fd;
}
void handle_redir(t_ast_n *node)
{
if (node->redir == _NR)
return ;
else if (node->redir == _RED_L)
handle_file(node, 1);
else if (node->redir == _RED_R)
handle_file(node, 2);
else if (node->redir == _RED_DR)
handle_file(node, 3);
if (node->redir == _RED_L)
{
dup2(node->_stdin, STDIN_FILENO);
close(node->_stdin);
}
else if (node->redir == _RED_R || node->redir == _RED_DR)
{
dup2(node->_stdout, STDOUT_FILENO);
close(node->_stdout);
}
}
int is_builtin(char *str)
{
@@ -34,6 +78,7 @@ int is_builtin(char *str)
int exec_builtin(t_ast_n *node)
{
handle_redir(node);
if (ft_strncmp(node->cmd, "exit", 4) == 0)
return (builtin_exit(node->args, true));
else if (ft_strncmp(node->cmd, "pwd", 3) == 0)
@@ -83,49 +128,6 @@ void return_error(char *arg, char *msg, int code)
exit(code);
}
void handle_file(t_ast_n *node, int check)
{
int fd;
if (check == 1)
fd = open(node->infile, O_RDONLY);
else if (check == 2)
fd = open(node->outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
else if (check == 3)
fd = open(node->outfile, O_WRONLY | O_CREAT | O_APPEND, 0666);
if (fd == -1)
{
perror("open");
exit(1);
}
if (check == 1)
node->_stdin = fd;
else if (check == 2 || check == 3)
node->_stdout = fd;
}
void handle_redir(t_ast_n *node)
{
if (node->redir == _NR)
return ;
else if (node->redir == _RED_L)
handle_file(node, 1);
else if (node->redir == _RED_R)
handle_file(node, 2);
else if (node->redir == _RED_DR)
handle_file(node, 3);
if (node->redir == _RED_L)
{
dup2(node->_stdin, STDIN_FILENO);
close(node->_stdin);
}
else if (node->redir == _RED_R || node->redir == _RED_DR)
{
dup2(node->_stdout, STDOUT_FILENO);
close(node->_stdout);
}
}
int exec(t_ast_n *node)
{
char *path;
@@ -156,9 +158,7 @@ int exec_scmd(t_ast_n *node)
{
pid = fork();
if (pid == 0)
{
exec(node);
}
else
{
waitpid(pid, &status, 0);
@@ -171,6 +171,32 @@ int exec_scmd(t_ast_n *node)
}
}
// int exec_pipe(t_ast_n **pline)
// {
// int i;
// pid_t pid;
//
// i = -1;
// while (pline[++i])
// {
// pipe(pline[i]->fds);
// pid = fork();
// if (pid == 0)
// {
// close(pline[i]->fds[0]);
// dup2(pline[i]->fds[1], STDOUT_FILENO);
// close(pline[i]->fds[1]);
// execute_command(pline[i]);
// }
// else
// {
// close(pline[i]->fds[1]);
// dup2(pline[i]->fds[0], STDIN_FILENO);
// close(pline[i]->fds[0]);
// }
// }
// }
int execute_command(t_ast_n *node)
{
int status;
@@ -180,18 +206,18 @@ int execute_command(t_ast_n *node)
else if (node->state == _AND)
{
status = execute_command(node->left);
if (WEXITSTATUS(status) == 0)
if (status == 0)
return (execute_command(node->right));
return (status);
}
else if (node->state == _OR)
{
status = execute_command(node->left);
if (WEXITSTATUS(status) != 0)
if (status != 0)
return (execute_command(node->right));
return (status);
}
return (0);
// else if (node->state == _PLINE)
// return (exec_pipe(node));
// return (exec_pipe(node->pline));
return (0);
}