Date: Thu, 6 Feb 1997 21:00:05 -0600 (CST) From: jlemon@americantv.com To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: i386/2682: sigreturn() error code disagrees with man page Message-ID: <199702070300.VAA07321@sumatra.americantv.com> Resent-Message-ID: <199702070320.TAA27304@freefall.freebsd.org>
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>Number: 2682
>Category: i386
>Synopsis: sigreturn() error code disagrees with man page
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Feb 6 19:20:04 PST 1997
>Last-Modified:
>Originator: Jonathan Lemon
>Organization:
>Release: FreeBSD 2.2-961014-SNAP i386
>Environment:
-current
>Description:
The manual page for sigreturn() says:
[EFAULT] Scp points to memory that is not a valid part of the process
address space.
[EINVAL] The process status longword is invalid or would improperly
raise the privilege level of the process.
But sigreturn() returns EINVAL for all cases.
>How-To-Repeat:
>Fix:
Change the manual page, or apply the following patch:
*** machdep.c Thu Feb 6 20:34:22 1997
--- machdep.c.new Thu Feb 6 20:36:04 1997
***************
*** 617,623 ****
regs[tISP] = scp->sc_isp;
if (useracc((caddr_t)scp, sizeof (*scp), B_WRITE) == 0)
! return(EINVAL);
if (scp->sc_onstack & 01)
p->p_sigacts->ps_sigstk.ss_flags |= SS_ONSTACK;
--- 617,623 ----
regs[tISP] = scp->sc_isp;
if (useracc((caddr_t)scp, sizeof (*scp), B_WRITE) == 0)
! return(EFAULT);
if (scp->sc_onstack & 01)
p->p_sigacts->ps_sigstk.ss_flags |= SS_ONSTACK;
>Audit-Trail:
>Unformatted:
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