diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 50 |
1 files changed, 44 insertions, 6 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 7ea23ad6ce..eb904012fa 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -9320,14 +9320,52 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); break; #endif - +#if defined(TARGET_NR_syslog) case TARGET_NR_syslog: - if (!(p = lock_user_string(arg2))) - goto efault; - ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); - unlock_user(p, arg2, 0); - break; + { + int len = arg2; + switch (arg1) { + case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */ + case TARGET_SYSLOG_ACTION_OPEN: /* Open log */ + case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */ + case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */ + case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */ + case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */ + case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */ + case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */ + { + ret = get_errno(sys_syslog((int)arg1, NULL, (int)arg3)); + } + break; + case TARGET_SYSLOG_ACTION_READ: /* Read from log */ + case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */ + case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */ + { + ret = -TARGET_EINVAL; + if (len < 0) { + goto fail; + } + ret = 0; + if (len == 0) { + break; + } + p = lock_user(VERIFY_WRITE, arg2, arg3, 0); + if (!p) { + ret = -TARGET_EFAULT; + goto fail; + } + ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); + unlock_user(p, arg2, arg3); + } + break; + default: + ret = -EINVAL; + break; + } + } + break; +#endif case TARGET_NR_setitimer: { struct itimerval value, ovalue, *pvalue; |