By default, C function prototypes declared in headers are visible, so there is no need to declare them as 'extern' functions. Remove this redundancy in a single bulk commit; do not modify: - meson.build (used to check function availability at runtime) - pc-bios/ - libdecnumber/ - tests/ - *.c Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20230605175647.88395-5-philmd@linaro.org>
		
			
				
	
	
		
			941 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			941 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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						|
 *  file related system call shims and definitions
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						|
 *
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						|
 *  Copyright (c) 2013 Stacey D. Son
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 *
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						|
 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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						|
 *  the Free Software Foundation; either version 2 of the License, or
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						|
 *  (at your option) any later version.
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 *
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						|
 *  This program is distributed in the hope that it will be useful,
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						|
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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						|
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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						|
 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, see <http://www.gnu.org/licenses/>.
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 */
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#ifndef BSD_FILE_H
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						|
#define BSD_FILE_H
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#include "qemu/path.h"
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#define LOCK_PATH(p, arg)                   \
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do {                                        \
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    (p) = lock_user_string(arg);            \
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						|
    if ((p) == NULL) {                      \
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        return -TARGET_EFAULT;              \
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    }                                       \
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} while (0)
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#define UNLOCK_PATH(p, arg)     unlock_user(p, arg, 0)
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#define LOCK_PATH2(p1, arg1, p2, arg2)      \
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do {                                        \
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						|
    (p1) = lock_user_string(arg1);          \
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						|
    if ((p1) == NULL) {                     \
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        return -TARGET_EFAULT;              \
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						|
    }                                       \
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    (p2) = lock_user_string(arg2);          \
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						|
    if ((p2) == NULL) {                     \
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        unlock_user(p1, arg1, 0);           \
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        return -TARGET_EFAULT;              \
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    }                                       \
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} while (0)
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#define UNLOCK_PATH2(p1, arg1, p2, arg2)    \
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						|
do {                                        \
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    unlock_user(p2, arg2, 0);               \
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						|
    unlock_user(p1, arg1, 0);               \
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} while (0)
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						|
struct iovec *lock_iovec(int type, abi_ulong target_addr, int count, int copy);
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						|
void unlock_iovec(struct iovec *vec, abi_ulong target_addr, int count, int copy);
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						|
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						|
int safe_open(const char *path, int flags, mode_t mode);
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						|
int safe_openat(int fd, const char *path, int flags, mode_t mode);
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						|
ssize_t safe_read(int fd, void *buf, size_t nbytes);
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ssize_t safe_pread(int fd, void *buf, size_t nbytes, off_t offset);
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ssize_t safe_readv(int fd, const struct iovec *iov, int iovcnt);
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ssize_t safe_preadv(int fd, const struct iovec *iov, int iovcnt, off_t offset);
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ssize_t safe_write(int fd, void *buf, size_t nbytes);
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						|
ssize_t safe_pwrite(int fd, void *buf, size_t nbytes, off_t offset);
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						|
ssize_t safe_writev(int fd, const struct iovec *iov, int iovcnt);
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						|
ssize_t safe_pwritev(int fd, const struct iovec *iov, int iovcnt, off_t offset);
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						|
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						|
/* read(2) */
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static abi_long do_bsd_read(abi_long arg1, abi_long arg2, abi_long arg3)
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{
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						|
    abi_long ret;
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    void *p;
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    p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
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    if (p == NULL) {
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        return -TARGET_EFAULT;
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    }
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    ret = get_errno(safe_read(arg1, p, arg3));
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    unlock_user(p, arg2, ret);
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    return ret;
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}
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/* pread(2) */
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static abi_long do_bsd_pread(void *cpu_env, abi_long arg1,
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    abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
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{
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    abi_long ret;
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    void *p;
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    p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
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						|
    if (p == NULL) {
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						|
        return -TARGET_EFAULT;
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						|
    }
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						|
    if (regpairs_aligned(cpu_env) != 0) {
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						|
        arg4 = arg5;
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        arg5 = arg6;
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    }
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    ret = get_errno(safe_pread(arg1, p, arg3, target_arg64(arg4, arg5)));
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    unlock_user(p, arg2, ret);
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    return ret;
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}
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/* readv(2) */
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static abi_long do_bsd_readv(abi_long arg1, abi_long arg2, abi_long arg3)
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{
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						|
    abi_long ret;
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    struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
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						|
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						|
    if (vec != NULL) {
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        ret = get_errno(safe_readv(arg1, vec, arg3));
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        unlock_iovec(vec, arg2, arg3, 1);
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						|
    } else {
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        ret = -host_to_target_errno(errno);
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    }
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    return ret;
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}
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/* preadv(2) */
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static abi_long do_bsd_preadv(void *cpu_env, abi_long arg1,
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    abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
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{
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    abi_long ret;
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    struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 1);
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    if (vec != NULL) {
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        if (regpairs_aligned(cpu_env) != 0) {
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            arg4 = arg5;
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            arg5 = arg6;
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        }
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        ret = get_errno(safe_preadv(arg1, vec, arg3, target_arg64(arg4, arg5)));
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        unlock_iovec(vec, arg2, arg3, 0);
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    } else {
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        ret = -host_to_target_errno(errno);
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    }
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    return ret;
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}
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/* write(2) */
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static abi_long do_bsd_write(abi_long arg1, abi_long arg2, abi_long arg3)
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{
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    abi_long nbytes, ret;
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    void *p;
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    /* nbytes < 0 implies that it was larger than SIZE_MAX. */
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    nbytes = arg3;
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    if (nbytes < 0) {
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        return -TARGET_EINVAL;
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    }
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    p = lock_user(VERIFY_READ, arg2, nbytes, 1);
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						|
    if (p == NULL) {
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        return -TARGET_EFAULT;
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    }
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    ret = get_errno(safe_write(arg1, p, arg3));
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    unlock_user(p, arg2, 0);
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    return ret;
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}
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/* pwrite(2) */
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static abi_long do_bsd_pwrite(void *cpu_env, abi_long arg1,
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    abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
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{
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    abi_long ret;
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    void *p;
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    p = lock_user(VERIFY_READ, arg2, arg3, 1);
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    if (p == NULL) {
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        return -TARGET_EFAULT;
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    }
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    if (regpairs_aligned(cpu_env) != 0) {
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        arg4 = arg5;
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        arg5 = arg6;
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    }
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    ret = get_errno(safe_pwrite(arg1, p, arg3, target_arg64(arg4, arg5)));
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    unlock_user(p, arg2, 0);
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    return ret;
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}
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/* writev(2) */
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static abi_long do_bsd_writev(abi_long arg1, abi_long arg2, abi_long arg3)
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{
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    abi_long ret;
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    struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
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    if (vec != NULL) {
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        ret = get_errno(safe_writev(arg1, vec, arg3));
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        unlock_iovec(vec, arg2, arg3, 0);
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    } else {
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        ret = -host_to_target_errno(errno);
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    }
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    return ret;
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}
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/* pwritev(2) */
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static abi_long do_bsd_pwritev(void *cpu_env, abi_long arg1,
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    abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6)
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{
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    abi_long ret;
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    struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
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    if (vec != NULL) {
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        if (regpairs_aligned(cpu_env) != 0) {
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            arg4 = arg5;
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            arg5 = arg6;
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        }
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        ret = get_errno(safe_pwritev(arg1, vec, arg3, target_arg64(arg4, arg5)));
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        unlock_iovec(vec, arg2, arg3, 0);
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    } else {
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        ret = -host_to_target_errno(errno);
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    }
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    return ret;
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}
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/* open(2) */
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static abi_long do_bsd_open(abi_long arg1, abi_long arg2, abi_long arg3)
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{
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    abi_long ret;
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    void *p;
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    LOCK_PATH(p, arg1);
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    ret = get_errno(safe_open(path(p), target_to_host_bitmask(arg2,
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                fcntl_flags_tbl), arg3));
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    UNLOCK_PATH(p, arg1);
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    return ret;
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}
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/* openat(2) */
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static abi_long do_bsd_openat(abi_long arg1, abi_long arg2,
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        abi_long arg3, abi_long arg4)
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{
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    abi_long ret;
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    void *p;
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    LOCK_PATH(p, arg2);
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    ret = get_errno(safe_openat(arg1, path(p),
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                target_to_host_bitmask(arg3, fcntl_flags_tbl), arg4));
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    UNLOCK_PATH(p, arg2);
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    return ret;
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}
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/* close(2) */
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static abi_long do_bsd_close(abi_long arg1)
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{
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    return get_errno(close(arg1));
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}
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/* fdatasync(2) */
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static abi_long do_bsd_fdatasync(abi_long arg1)
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{
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    return get_errno(fdatasync(arg1));
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}
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/* fsync(2) */
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static abi_long do_bsd_fsync(abi_long arg1)
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{
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    return get_errno(fsync(arg1));
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}
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/* closefrom(2) */
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static abi_long do_bsd_closefrom(abi_long arg1)
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{
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    closefrom(arg1);  /* returns void */
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    return get_errno(0);
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}
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/* revoke(2) */
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static abi_long do_bsd_revoke(abi_long arg1)
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{
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    abi_long ret;
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    void *p;
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    LOCK_PATH(p, arg1);
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    ret = get_errno(revoke(p)); /* XXX path(p)? */
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    UNLOCK_PATH(p, arg1);
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    return ret;
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}
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/* access(2) */
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static abi_long do_bsd_access(abi_long arg1, abi_long arg2)
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{
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    abi_long ret;
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    void *p;
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    LOCK_PATH(p, arg1);
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    ret = get_errno(access(path(p), arg2));
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    UNLOCK_PATH(p, arg1);
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    return ret;
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}
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/* eaccess(2) */
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static abi_long do_bsd_eaccess(abi_long arg1, abi_long arg2)
 | 
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{
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    abi_long ret;
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    void *p;
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    LOCK_PATH(p, arg1);
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    ret = get_errno(eaccess(path(p), arg2));
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    UNLOCK_PATH(p, arg1);
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    return ret;
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}
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/* faccessat(2) */
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static abi_long do_bsd_faccessat(abi_long arg1, abi_long arg2,
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        abi_long arg3, abi_long arg4)
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{
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    abi_long ret;
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    void *p;
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    LOCK_PATH(p, arg2);
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    ret = get_errno(faccessat(arg1, p, arg3, arg4)); /* XXX path(p)? */
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						|
    UNLOCK_PATH(p, arg2);
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    return ret;
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}
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 | 
						|
/* chdir(2) */
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						|
static abi_long do_bsd_chdir(abi_long arg1)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
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 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(chdir(p)); /* XXX  path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
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 | 
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    return ret;
 | 
						|
}
 | 
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 | 
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/* fchdir(2) */
 | 
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static abi_long do_bsd_fchdir(abi_long arg1)
 | 
						|
{
 | 
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    return get_errno(fchdir(arg1));
 | 
						|
}
 | 
						|
 | 
						|
/* rename(2) */
 | 
						|
static abi_long do_bsd_rename(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
    ret = get_errno(rename(p1, p2)); /* XXX path(p1), path(p2) */
 | 
						|
    UNLOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* renameat(2) */
 | 
						|
static abi_long do_bsd_renameat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3, abi_long arg4)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH2(p1, arg2, p2, arg4);
 | 
						|
    ret = get_errno(renameat(arg1, p1, arg3, p2));
 | 
						|
    UNLOCK_PATH2(p1, arg2, p2, arg4);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* link(2) */
 | 
						|
static abi_long do_bsd_link(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
    ret = get_errno(link(p1, p2)); /* XXX path(p1), path(p2) */
 | 
						|
    UNLOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* linkat(2) */
 | 
						|
static abi_long do_bsd_linkat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3, abi_long arg4, abi_long arg5)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH2(p1, arg2, p2, arg4);
 | 
						|
    ret = get_errno(linkat(arg1, p1, arg3, p2, arg5));
 | 
						|
    UNLOCK_PATH2(p1, arg2, p2, arg4);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* unlink(2) */
 | 
						|
static abi_long do_bsd_unlink(abi_long arg1)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(unlink(p)); /* XXX path(p) */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* unlinkat(2) */
 | 
						|
static abi_long do_bsd_unlinkat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg2);
 | 
						|
    ret = get_errno(unlinkat(arg1, p, arg3)); /* XXX path(p) */
 | 
						|
    UNLOCK_PATH(p, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* mkdir(2) */
 | 
						|
static abi_long do_bsd_mkdir(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(mkdir(p, arg2)); /* XXX path(p) */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* mkdirat(2) */
 | 
						|
static abi_long do_bsd_mkdirat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg2);
 | 
						|
    ret = get_errno(mkdirat(arg1, p, arg3));
 | 
						|
    UNLOCK_PATH(p, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* rmdir(2) */
 | 
						|
static abi_long do_bsd_rmdir(abi_long arg1)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(rmdir(p)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* undocumented __getcwd(char *buf, size_t len)  system call */
 | 
						|
static abi_long do_bsd___getcwd(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
 | 
						|
    if (p == NULL) {
 | 
						|
        return -TARGET_EFAULT;
 | 
						|
    }
 | 
						|
    ret = safe_syscall(SYS___getcwd, p, arg2);
 | 
						|
    unlock_user(p, arg1, ret == 0 ? strlen(p) + 1 : 0);
 | 
						|
 | 
						|
    return get_errno(ret);
 | 
						|
}
 | 
						|
 | 
						|
/* dup(2) */
 | 
						|
static abi_long do_bsd_dup(abi_long arg1)
 | 
						|
{
 | 
						|
    return get_errno(dup(arg1));
 | 
						|
}
 | 
						|
 | 
						|
/* dup2(2) */
 | 
						|
static abi_long do_bsd_dup2(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    return get_errno(dup2(arg1, arg2));
 | 
						|
}
 | 
						|
 | 
						|
/* truncate(2) */
 | 
						|
static abi_long do_bsd_truncate(void *cpu_env, abi_long arg1,
 | 
						|
        abi_long arg2, abi_long arg3, abi_long arg4)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    if (regpairs_aligned(cpu_env) != 0) {
 | 
						|
        arg2 = arg3;
 | 
						|
        arg3 = arg4;
 | 
						|
    }
 | 
						|
    ret = get_errno(truncate(p, target_arg64(arg2, arg3)));
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* ftruncate(2) */
 | 
						|
static abi_long do_bsd_ftruncate(void *cpu_env, abi_long arg1,
 | 
						|
        abi_long arg2, abi_long arg3, abi_long arg4)
 | 
						|
{
 | 
						|
    if (regpairs_aligned(cpu_env) != 0) {
 | 
						|
        arg2 = arg3;
 | 
						|
        arg3 = arg4;
 | 
						|
    }
 | 
						|
    return get_errno(ftruncate(arg1, target_arg64(arg2, arg3)));
 | 
						|
}
 | 
						|
 | 
						|
/* acct(2) */
 | 
						|
static abi_long do_bsd_acct(abi_long arg1)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    if (arg1 == 0) {
 | 
						|
        ret = get_errno(acct(NULL));
 | 
						|
    } else {
 | 
						|
        LOCK_PATH(p, arg1);
 | 
						|
        ret = get_errno(acct(path(p)));
 | 
						|
        UNLOCK_PATH(p, arg1);
 | 
						|
    }
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* sync(2) */
 | 
						|
static abi_long do_bsd_sync(void)
 | 
						|
{
 | 
						|
    sync();
 | 
						|
    return 0;
 | 
						|
}
 | 
						|
 | 
						|
/* mount(2) */
 | 
						|
static abi_long do_bsd_mount(abi_long arg1, abi_long arg2, abi_long arg3,
 | 
						|
        abi_long arg4)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
    /*
 | 
						|
     * XXX arg4 should be locked, but it isn't clear how to do that since it may
 | 
						|
     * be not be a NULL-terminated string.
 | 
						|
     */
 | 
						|
    if (arg4 == 0) {
 | 
						|
        ret = get_errno(mount(p1, p2, arg3, NULL)); /* XXX path(p2)? */
 | 
						|
    } else {
 | 
						|
        ret = get_errno(mount(p1, p2, arg3, g2h_untagged(arg4))); /* XXX path(p2)? */
 | 
						|
    }
 | 
						|
    UNLOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* unmount(2) */
 | 
						|
static abi_long do_bsd_unmount(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(unmount(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* nmount(2) */
 | 
						|
static abi_long do_bsd_nmount(abi_long arg1, abi_long count,
 | 
						|
        abi_long flags)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    struct iovec *vec = lock_iovec(VERIFY_READ, arg1, count, 1);
 | 
						|
 | 
						|
    if (vec != NULL) {
 | 
						|
        ret = get_errno(nmount(vec, count, flags));
 | 
						|
        unlock_iovec(vec, arg1, count, 0);
 | 
						|
    } else {
 | 
						|
        return -TARGET_EFAULT;
 | 
						|
    }
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* symlink(2) */
 | 
						|
static abi_long do_bsd_symlink(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
    ret = get_errno(symlink(p1, p2)); /* XXX path(p1), path(p2) */
 | 
						|
    UNLOCK_PATH2(p1, arg1, p2, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* symlinkat(2) */
 | 
						|
static abi_long do_bsd_symlinkat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH2(p1, arg1, p2, arg3);
 | 
						|
    ret = get_errno(symlinkat(p1, arg2, p2)); /* XXX path(p1), path(p2) */
 | 
						|
    UNLOCK_PATH2(p1, arg1, p2, arg3);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* readlink(2) */
 | 
						|
static abi_long do_bsd_readlink(CPUArchState *env, abi_long arg1,
 | 
						|
        abi_long arg2, abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH(p1, arg1);
 | 
						|
    p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
 | 
						|
    if (p2 == NULL) {
 | 
						|
        UNLOCK_PATH(p1, arg1);
 | 
						|
        return -TARGET_EFAULT;
 | 
						|
    }
 | 
						|
    if (strcmp(p1, "/proc/curproc/file") == 0) {
 | 
						|
        CPUState *cpu = env_cpu(env);
 | 
						|
        TaskState *ts = (TaskState *)cpu->opaque;
 | 
						|
        strncpy(p2, ts->bprm->fullpath, arg3);
 | 
						|
        ret = MIN((abi_long)strlen(ts->bprm->fullpath), arg3);
 | 
						|
    } else {
 | 
						|
        ret = get_errno(readlink(path(p1), p2, arg3));
 | 
						|
    }
 | 
						|
    unlock_user(p2, arg2, ret);
 | 
						|
    UNLOCK_PATH(p1, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* readlinkat(2) */
 | 
						|
static abi_long do_bsd_readlinkat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3, abi_long arg4)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p1, *p2;
 | 
						|
 | 
						|
    LOCK_PATH(p1, arg2);
 | 
						|
    p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
 | 
						|
    if (p2 == NULL) {
 | 
						|
        UNLOCK_PATH(p1, arg2);
 | 
						|
        return -TARGET_EFAULT;
 | 
						|
    }
 | 
						|
    ret = get_errno(readlinkat(arg1, p1, p2, arg4));
 | 
						|
    unlock_user(p2, arg3, ret);
 | 
						|
    UNLOCK_PATH(p1, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* chmod(2) */
 | 
						|
static abi_long do_bsd_chmod(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(chmod(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* fchmod(2) */
 | 
						|
static abi_long do_bsd_fchmod(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    return get_errno(fchmod(arg1, arg2));
 | 
						|
}
 | 
						|
 | 
						|
/* lchmod(2) */
 | 
						|
static abi_long do_bsd_lchmod(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(lchmod(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* fchmodat(2) */
 | 
						|
static abi_long do_bsd_fchmodat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3, abi_long arg4)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg2);
 | 
						|
    ret = get_errno(fchmodat(arg1, p, arg3, arg4));
 | 
						|
    UNLOCK_PATH(p, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* pre-ino64 mknod(2) */
 | 
						|
static abi_long do_bsd_freebsd11_mknod(abi_long arg1, abi_long arg2, abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(syscall(SYS_freebsd11_mknod, p, arg2, arg3));
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* pre-ino64 mknodat(2) */
 | 
						|
static abi_long do_bsd_freebsd11_mknodat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3, abi_long arg4)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg2);
 | 
						|
    ret = get_errno(syscall(SYS_freebsd11_mknodat, arg1, p, arg3, arg4));
 | 
						|
    UNLOCK_PATH(p, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* post-ino64 mknodat(2) */
 | 
						|
static abi_long do_bsd_mknodat(void *cpu_env, abi_long arg1,
 | 
						|
        abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5,
 | 
						|
        abi_long arg6)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg2);
 | 
						|
       /* 32-bit arch's use two 32 registers for 64 bit return value */
 | 
						|
    if (regpairs_aligned(cpu_env) != 0) {
 | 
						|
        ret = get_errno(mknodat(arg1, p, arg3, target_arg64(arg5, arg6)));
 | 
						|
    } else {
 | 
						|
        ret = get_errno(mknodat(arg1, p, arg3, target_arg64(arg4, arg5)));
 | 
						|
    }
 | 
						|
    UNLOCK_PATH(p, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* chown(2) */
 | 
						|
static abi_long do_bsd_chown(abi_long arg1, abi_long arg2, abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(chown(p, arg2, arg3)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* fchown(2) */
 | 
						|
static abi_long do_bsd_fchown(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3)
 | 
						|
{
 | 
						|
    return get_errno(fchown(arg1, arg2, arg3));
 | 
						|
}
 | 
						|
 | 
						|
/* lchown(2) */
 | 
						|
static abi_long do_bsd_lchown(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(lchown(p, arg2, arg3)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* fchownat(2) */
 | 
						|
static abi_long do_bsd_fchownat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3, abi_long arg4, abi_long arg5)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg2);
 | 
						|
    ret = get_errno(fchownat(arg1, p, arg3, arg4, arg5)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* chflags(2) */
 | 
						|
static abi_long do_bsd_chflags(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(chflags(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* lchflags(2) */
 | 
						|
static abi_long do_bsd_lchflags(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(lchflags(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* fchflags(2) */
 | 
						|
static abi_long do_bsd_fchflags(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    return get_errno(fchflags(arg1, arg2));
 | 
						|
}
 | 
						|
 | 
						|
/* chroot(2) */
 | 
						|
static abi_long do_bsd_chroot(abi_long arg1)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(chroot(p)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* flock(2) */
 | 
						|
static abi_long do_bsd_flock(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    return get_errno(flock(arg1, arg2));
 | 
						|
}
 | 
						|
 | 
						|
/* mkfifo(2) */
 | 
						|
static abi_long do_bsd_mkfifo(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(mkfifo(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* mkfifoat(2) */
 | 
						|
static abi_long do_bsd_mkfifoat(abi_long arg1, abi_long arg2,
 | 
						|
        abi_long arg3)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg2);
 | 
						|
    ret = get_errno(mkfifoat(arg1, p, arg3));
 | 
						|
    UNLOCK_PATH(p, arg2);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* pathconf(2) */
 | 
						|
static abi_long do_bsd_pathconf(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(pathconf(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* lpathconf(2) */
 | 
						|
static abi_long do_bsd_lpathconf(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(lpathconf(p, arg2)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
/* fpathconf(2) */
 | 
						|
static abi_long do_bsd_fpathconf(abi_long arg1, abi_long arg2)
 | 
						|
{
 | 
						|
    return get_errno(fpathconf(arg1, arg2));
 | 
						|
}
 | 
						|
 | 
						|
/* undelete(2) */
 | 
						|
static abi_long do_bsd_undelete(abi_long arg1)
 | 
						|
{
 | 
						|
    abi_long ret;
 | 
						|
    void *p;
 | 
						|
 | 
						|
    LOCK_PATH(p, arg1);
 | 
						|
    ret = get_errno(undelete(p)); /* XXX path(p)? */
 | 
						|
    UNLOCK_PATH(p, arg1);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
#endif /* BSD_FILE_H */
 |