virtio: properly validate address before accessing config

[qemu.git] / os-posix.c

diff --git a/os-posix.c b/os-posix.c
index 79fa2288e486d85888ef41136cef019b46de4257..d39261d84949243cfc407d93603eb4d66a0d0586 100644 (file)
--- a/os-posix.c
+++ b/os-posix.c
@@ -36,7 +36,7 @@
 
 /* Needed early for CONFIG_BSD etc. */
 #include "config-host.h"
-#include "sysemu.h"
+#include "sysemu/sysemu.h"
 #include "net/slirp.h"
 #include "qemu-options.h"
 
@@ -148,8 +148,7 @@ void os_set_proc_name(const char *s)
     char name[16];
     if (!s)
         return;
-    name[sizeof(name) - 1] = 0;
-    strncpy(name, s, sizeof(name));
+    pstrcpy(name, sizeof(name), s);
     /* Could rewrite argv[0] too, but that's a bit more complicated.
        This simple way is enough for `top'. */
     if (prctl(PR_SET_NAME, name)) {
@@ -194,7 +193,6 @@ void os_parse_cmd_args(int index, const char *optarg)
         break;
 #endif
     }
-    return;
 }
 
 static void change_process_uid(void)
@@ -360,3 +358,20 @@ int qemu_create_pidfile(const char *filename)
     /* keep pidfile open & locked forever */
     return 0;
 }
+
+bool is_daemonized(void)
+{
+    return daemonize;
+}
+
+int os_mlock(void)
+{
+    int ret = 0;
+
+    ret = mlockall(MCL_CURRENT | MCL_FUTURE);
+    if (ret < 0) {
+        perror("mlockall");
+    }
+
+    return ret;
+}