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fix negated error codes from ptsname_r 

the incorrect error codes also made their way into errno when
__ptsname_r was called by plain ptsname, which reports errors via
errno rather than a return value.
This commit is contained in:
Rich Felker 2014-03-17 00:25:23 -04:00
parent 611eabd489
commit 6619317164
1 changed files with 1 additions and 1 deletions
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src/misc/pty.c
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@ -26,7 +26,7 @@ int __ptsname_r(int fd, char *buf, size_t len)
{ {
int pty, err; int pty, err;
if (!buf) len = 0; 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; if (snprintf(buf, len, "/dev/pts/%d", pty) >= len) return ERANGE;
return 0; return 0;
} }