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| author | Warner Losh | 2022-06-12 16:16:46 +0200 |
|---|---|---|
| committer | Warner Losh | 2022-06-13 23:50:50 +0200 |
| commit | ab5fd2d969855be6a0355e55d21b51c676f7b1b6 (patch) | |
| tree | ab9c2b264bf7ba8e818823b52188fc36c69b0e3d | |
| parent | bsd-user: Implement chdir and fchdir (diff) | |
| download | qemu-ab5fd2d969855be6a0355e55d21b51c676f7b1b6.tar.gz qemu-ab5fd2d969855be6a0355e55d21b51c676f7b1b6.tar.xz qemu-ab5fd2d969855be6a0355e55d21b51c676f7b1b6.zip | |
bsd-user: Implement rename and renameat
Plus the helper LOCK_PATH2 and UNLOCK_PATH2 macros.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | bsd-user/bsd-file.h | 45 | ||||
| -rw-r--r-- | bsd-user/freebsd/os-syscall.c | 8 |
2 files changed, 53 insertions, 0 deletions
diff --git a/bsd-user/bsd-file.h b/bsd-user/bsd-file.h index bc0a0c08d5..fd8aba9618 100644 --- a/bsd-user/bsd-file.h +++ b/bsd-user/bsd-file.h @@ -32,6 +32,24 @@ do { \ #define UNLOCK_PATH(p, arg) unlock_user(p, arg, 0) +#define LOCK_PATH2(p1, arg1, p2, arg2) \ +do { \ + (p1) = lock_user_string(arg1); \ + if ((p1) == NULL) { \ + return -TARGET_EFAULT; \ + } \ + (p2) = lock_user_string(arg2); \ + if ((p2) == NULL) { \ + unlock_user(p1, arg1, 0); \ + return -TARGET_EFAULT; \ + } \ +} while (0) + +#define UNLOCK_PATH2(p1, arg1, p2, arg2) \ +do { \ + unlock_user(p2, arg2, 0); \ + unlock_user(p1, arg1, 0); \ +} while (0) extern struct iovec *lock_iovec(int type, abi_ulong target_addr, int count, int copy); @@ -330,4 +348,31 @@ static abi_long do_bsd_fchdir(abi_long arg1) 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; +} + #endif /* BSD_FILE_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index 8698db358c..2d62a54632 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -309,6 +309,14 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, ret = do_bsd_fchdir(arg1); break; + case TARGET_FREEBSD_NR_rename: /* rename(2) */ + ret = do_bsd_rename(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_renameat: /* renameat(2) */ + ret = do_bsd_renameat(arg1, arg2, arg3, arg4); + break; + default: qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num); ret = -TARGET_ENOSYS; |