syscall.c (76ca310a19463e9883e2e55a88ac8be1fc171eea) syscall.c (f19e00d776b781bfb0067b9b20a592440fd2990e)
1/*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

--- 1890 unchanged lines hidden (view full) ---

1899
1900 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1901 if (ret)
1902 return ret;
1903
1904 return get_errno(connect(sockfd, addr, addrlen));
1905}
1906
1/*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or

--- 1890 unchanged lines hidden (view full) ---

1899
1900 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1901 if (ret)
1902 return ret;
1903
1904 return get_errno(connect(sockfd, addr, addrlen));
1905}
1906
1907/* do_sendrecvmsg() Must return target values and target errnos. */
1908static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1909 int flags, int send)
1907/* do_sendrecvmsg_locked() Must return target values and target errnos. */
1908static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
1909 int flags, int send)
1910{
1911 abi_long ret, len;
1910{
1911 abi_long ret, len;
1912 struct target_msghdr *msgp;
1913 struct msghdr msg;
1914 int count;
1915 struct iovec *vec;
1916 abi_ulong target_vec;
1917
1912 struct msghdr msg;
1913 int count;
1914 struct iovec *vec;
1915 abi_ulong target_vec;
1916
1918 /* FIXME */
1919 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1920 msgp,
1921 target_msg,
1922 send ? 1 : 0))
1923 return -TARGET_EFAULT;
1924 if (msgp->msg_name) {
1925 msg.msg_namelen = tswap32(msgp->msg_namelen);
1926 msg.msg_name = alloca(msg.msg_namelen);
1927 ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name),
1928 msg.msg_namelen);
1929 if (ret) {
1930 goto out2;
1931 }

--- 38 unchanged lines hidden (view full) ---

1970 ret = len;
1971 }
1972 }
1973 }
1974
1975out:
1976 unlock_iovec(vec, target_vec, count, !send);
1977out2:
1917 if (msgp->msg_name) {
1918 msg.msg_namelen = tswap32(msgp->msg_namelen);
1919 msg.msg_name = alloca(msg.msg_namelen);
1920 ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name),
1921 msg.msg_namelen);
1922 if (ret) {
1923 goto out2;
1924 }

--- 38 unchanged lines hidden (view full) ---

1963 ret = len;
1964 }
1965 }
1966 }
1967
1968out:
1969 unlock_iovec(vec, target_vec, count, !send);
1970out2:
1971 return ret;
1972}
1973
1974static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1975 int flags, int send)
1976{
1977 abi_long ret;
1978 struct target_msghdr *msgp;
1979
1980 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1981 msgp,
1982 target_msg,
1983 send ? 1 : 0)) {
1984 return -TARGET_EFAULT;
1985 }
1986 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
1978 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1979 return ret;
1980}
1981
1987 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1988 return ret;
1989}
1990
1991#ifdef TARGET_NR_sendmmsg
1992/* We don't rely on the C library to have sendmmsg/recvmmsg support,
1993 * so it might not have this *mmsg-specific flag either.
1994 */
1995#ifndef MSG_WAITFORONE
1996#define MSG_WAITFORONE 0x10000
1997#endif
1998
1999static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2000 unsigned int vlen, unsigned int flags,
2001 int send)
2002{
2003 struct target_mmsghdr *mmsgp;
2004 abi_long ret = 0;
2005 int i;
2006
2007 if (vlen > UIO_MAXIOV) {
2008 vlen = UIO_MAXIOV;
2009 }
2010
2011 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2012 if (!mmsgp) {
2013 return -TARGET_EFAULT;
2014 }
2015
2016 for (i = 0; i < vlen; i++) {
2017 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2018 if (is_error(ret)) {
2019 break;
2020 }
2021 mmsgp[i].msg_len = tswap32(ret);
2022 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
2023 if (flags & MSG_WAITFORONE) {
2024 flags |= MSG_DONTWAIT;
2025 }
2026 }
2027
2028 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2029
2030 /* Return number of datagrams sent if we sent any at all;
2031 * otherwise return the error.
2032 */
2033 if (i) {
2034 return i;
2035 }
2036 return ret;
2037}
2038#endif
2039
1982/* If we don't have a system accept4() then just call accept.
1983 * The callsites to do_accept4() will ensure that they don't
1984 * pass a non-zero flags argument in this config.
1985 */
1986#ifndef CONFIG_ACCEPT4
1987static inline int accept4(int sockfd, struct sockaddr *addr,
1988 socklen_t *addrlen, int flags)
1989{

--- 4721 unchanged lines hidden (view full) ---

6711 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
6712 break;
6713#endif
6714#ifdef TARGET_NR_sendmsg
6715 case TARGET_NR_sendmsg:
6716 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
6717 break;
6718#endif
2040/* If we don't have a system accept4() then just call accept.
2041 * The callsites to do_accept4() will ensure that they don't
2042 * pass a non-zero flags argument in this config.
2043 */
2044#ifndef CONFIG_ACCEPT4
2045static inline int accept4(int sockfd, struct sockaddr *addr,
2046 socklen_t *addrlen, int flags)
2047{

--- 4721 unchanged lines hidden (view full) ---

6769 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
6770 break;
6771#endif
6772#ifdef TARGET_NR_sendmsg
6773 case TARGET_NR_sendmsg:
6774 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
6775 break;
6776#endif
6777#ifdef TARGET_NR_sendmmsg
6778 case TARGET_NR_sendmmsg:
6779 ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
6780 break;
6781 case TARGET_NR_recvmmsg:
6782 ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
6783 break;
6784#endif
6719#ifdef TARGET_NR_sendto
6720 case TARGET_NR_sendto:
6721 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
6722 break;
6723#endif
6724#ifdef TARGET_NR_shutdown
6725 case TARGET_NR_shutdown:
6726 ret = get_errno(shutdown(arg1, arg2));

--- 2487 unchanged lines hidden --- 		6785#ifdef TARGET_NR_sendto
6786 case TARGET_NR_sendto:
6787 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
6788 break;
6789#endif
6790#ifdef TARGET_NR_shutdown
6791 case TARGET_NR_shutdown:
6792 ret = get_errno(shutdown(arg1, arg2));

--- 2487 unchanged lines hidden ---