implement _Fork and refactor fork using it

[musl] / src / misc / pty.c

diff --git a/src/misc/pty.c b/src/misc/pty.c
index 9e201ef..a057714 100644 (file)
--- a/src/misc/pty.c
+++ b/src/misc/pty.c
@@ -3,12 +3,13 @@
 #include <stdio.h>
 #include <fcntl.h>
 #include <errno.h>
-#include "libc.h"
 #include "syscall.h"
 
 int posix_openpt(int flags)
 {
-       return open("/dev/ptmx", flags);
+       int r = open("/dev/ptmx", flags);
+       if (r < 0 && errno == ENOSPC) errno = EAGAIN;
+       return r;
 }
 
 int grantpt(int fd)
@@ -26,7 +27,7 @@ int __ptsname_r(int fd, char *buf, size_t len)
 {
        int pty, err;
        if (!buf) len = 0;
-       if ((err = __syscall(SYS_ioctl, fd, TIOCGPTN, &pty))) return err;
+       if ((err = __syscall(SYS_ioctl, fd, TIOCGPTN, &pty))) return -err;
        if (snprintf(buf, len, "/dev/pts/%d", pty) >= len) return ERANGE;
        return 0;
 }