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seems to pass initial testing for chained redirections, havent tried very far

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This commit is contained in:
Jack Halford 2017-02-03 14:41:28 +01:00
parent 62be4bc470
commit 09cb6f7843
1 changed files with 11 additions and 17 deletions
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28
42sh/src/exec/process_do_redirection.c
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@ -6,27 +6,28 @@
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/03 13:46:40 by jhalford #+# #+# */
/* Updated: 2017/02/03 14:10:01 by jhalford ### ########.fr */
/* Updated: 2017/02/03 14:41:01 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int fd_is_valid(int fd)
{
return (fcntl(fd, F_GETFD) != -1 || errno != EBADF);
}
void process_do_redirection(t_redir *redir)
{
int fdin;
int fdout;
if (redir->type & TK_GREAT)
if (redir->type & (TK_GREAT | TK_DGREAT))
{
fdin = redir->n;
fdout = open(redir->word.word, O_WRONLY | O_TRUNC | O_CREAT, 0644);
DG("opened [%s] in fd[%i]", redir->word.word, fdout);
}
else if (redir->type & TK_DGREAT)
{
fdin = redir->n;
fdout = open(redir->word.word, O_WRONLY | O_APPEND | O_CREAT, 0644);
fdout = open(redir->word.word, O_WRONLY | O_CREAT
(redir->type & TK_GREAT) ? O_TRUNC : O_APPEND,
0644);
}
else if (redir->type & TK_LESS)
{
@ -37,7 +38,6 @@ void process_do_redirection(t_redir *redir)
{
if (redir->close)
{
DG("gonna close(%i)", redir->n);
close(redir->n);
return ;
}
@ -47,12 +47,6 @@ void process_do_redirection(t_redir *redir)
fdout = redir->type & TK_LESSAND ? redir->n : redir->word.fd;
}
}
else
{
DG("redir->type not well set !");
return ;
}
DG("gonna dup2(%i,%i)", fdout, fdin);
dup2(fdout, fdin);
fd_is_valid(fdout) ? dup2(fdout, fdin) : close(fdin);
close(fdout);
}