diff options
| -rw-r--r-- | linux-user/syscall.c | 34 | ||||
| -rw-r--r-- | linux-user/syscall_defs.h | 6 |
2 files changed, 39 insertions, 1 deletions
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; diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 2857805e16..41f0ff8c7d 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2336,3 +2336,9 @@ struct target_rlimit64 { uint64_t rlim_cur; uint64_t rlim_max; }; + +struct target_ucred { + uint32_t pid; + uint32_t uid; + uint32_t gid; +}; |