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bsd-user: Implement rmdir and undocumented __getcwd
Implemenet rmdir and __getcwd. __getcwd is the undocumented back end to getcwd(3). 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>
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@ -456,4 +456,33 @@ static abi_long do_bsd_mkdirat(abi_long arg1, abi_long arg2,
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return ret;
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}
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/* rmdir(2) */
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static abi_long do_bsd_rmdir(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(rmdir(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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/* undocumented __getcwd(char *buf, size_t len) system call */
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static abi_long do_bsd___getcwd(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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p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
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if (p == NULL) {
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return -TARGET_EFAULT;
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}
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ret = safe_syscall(SYS___getcwd, p, arg2);
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unlock_user(p, arg1, ret == 0 ? strlen(p) + 1 : 0);
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return get_errno(ret);
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}
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#endif /* BSD_FILE_H */
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@ -341,6 +341,14 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
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ret = do_bsd_mkdirat(arg1, arg2, arg3);
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break;
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case TARGET_FREEBSD_NR_rmdir: /* rmdir(2) (XXX no rmdirat()?) */
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ret = do_bsd_rmdir(arg1);
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break;
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case TARGET_FREEBSD_NR___getcwd: /* undocumented __getcwd() */
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ret = do_bsd___getcwd(arg1, arg2);
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break;
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default:
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qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
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ret = -TARGET_ENOSYS;
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