From 583359a68922fb91b793a5ad3a2dd4536bf9b99e Mon Sep 17 00:00:00 2001 From: Akos PASZTORY Date: Mon, 14 Nov 2011 15:09:49 +0200 Subject: linux-user: add SO_PEERCRED support for getsockopt Signed-off-by: Akos PASZTORY Signed-off-by: Riku Voipio --- linux-user/syscall.c | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) (limited to 'linux-user/syscall.c') diff --git a/linux-user/syscall.c b/linux-user/syscall.c index c6bfcd8815..15b8b22936 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -1530,9 +1530,41 @@ static abi_long do_getsockopt(int sockfd, int level, int optname, case TARGET_SO_LINGER: case TARGET_SO_RCVTIMEO: case TARGET_SO_SNDTIMEO: - case TARGET_SO_PEERCRED: case TARGET_SO_PEERNAME: goto unimplemented; + case TARGET_SO_PEERCRED: { + struct ucred cr; + socklen_t crlen; + struct target_ucred *tcr; + + if (get_user_u32(len, optlen)) { + return -TARGET_EFAULT; + } + if (len < 0) { + return -TARGET_EINVAL; + } + + crlen = sizeof(cr); + ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED, + &cr, &crlen)); + if (ret < 0) { + return ret; + } + if (len > crlen) { + len = crlen; + } + if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) { + return -TARGET_EFAULT; + } + __put_user(cr.pid, &tcr->pid); + __put_user(cr.uid, &tcr->uid); + __put_user(cr.gid, &tcr->gid); + unlock_user_struct(tcr, optval_addr, 1); + if (put_user_u32(len, optlen)) { + return -TARGET_EFAULT; + } + break; + } /* Options with 'int' argument. */ case TARGET_SO_DEBUG: optname = SO_DEBUG; -- cgit v1.2.1