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Make pipe() return a set of bidirectional pipe fd's rather than one-way only

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just like on SVR4.

This has no effect on any current programs in our source, but makes
the use of SVR4 code a little easier.  There is no code or implementation
cost in the kernel.. This two-line change merely sets the modes on the ends
of the pipes to be bidirectional.  There are no other changes.
This commit is contained in:
peter 1996-01-01 10:28:21 +00:00
parent 7c92c06f2f
commit ac29480755
1 changed files with 3 additions and 3 deletions
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6
sys/kern/uipc_syscalls.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)uipc_syscalls.c 8.4 (Berkeley) 2/21/94
* $Id: uipc_syscalls.c,v 1.9 1995/10/23 15:42:12 bde Exp $
* $Id: uipc_syscalls.c,v 1.10 1995/12/14 22:51:04 bde Exp $
*/
#include <sys/param.h>
@ -1040,14 +1040,14 @@ pipe(p, uap, retval)
if (error)
goto free2;
retval[0] = fd;
rf->f_flag = FREAD;
rf->f_flag = FREAD | FWRITE;
rf->f_type = DTYPE_SOCKET;
rf->f_ops = &socketops;
rf->f_data = (caddr_t)rso;
error = falloc(p, &wf, &fd);
if (error)
goto free3;
wf->f_flag = FWRITE;
wf->f_flag = FREAD | FWRITE;
wf->f_type = DTYPE_SOCKET;
wf->f_ops = &socketops;
wf->f_data = (caddr_t)wso;