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From eb8c85b01be23beabb2b61e8b32a7e20ca0fea17 Mon Sep 17 00:00:00 2001
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Wed, 31 Jul 2013 14:03:22 +0200
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Subject: [PATCH 01/28] osdep: add qemu_get_local_state_pathname()
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RH-Author: Laszlo Ersek <lersek@redhat.com>
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Message-id: <1375279407-13573-2-git-send-email-lersek@redhat.com>
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Patchwork-id: 52863
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O-Subject: [RHEL-7 qemu-kvm PATCH 1/6] osdep: add qemu_get_local_state_pathname()
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Bugzilla: 964304
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RH-Acked-by: Michal Novotny <minovotn@redhat.com>
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RH-Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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This function returns ${prefix}/var/RELATIVE_PATHNAME on POSIX-y systems,
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and <CSIDL_COMMON_APPDATA>/RELATIVE_PATHNAME on Win32.
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http://msdn.microsoft.com/en-us/library/bb762494.aspx
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  [...] This folder is used for application data that is not user
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  specific. For example, an application can store a spell-check
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  dictionary, a database of clip art, or a log file in the
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  CSIDL_COMMON_APPDATA folder. [...]
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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(cherry picked from commit e2ea3515a9d2d747f91dadf361afcbeb57a71500)
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---
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 include/qemu/osdep.h |   11 +++++++++++
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 util/oslib-posix.c   |    9 +++++++++
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 util/oslib-win32.c   |   22 ++++++++++++++++++++++
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 3 files changed, 42 insertions(+), 0 deletions(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 include/qemu/osdep.h |   11 +++++++++++
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 util/oslib-posix.c   |    9 +++++++++
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 util/oslib-win32.c   |   22 ++++++++++++++++++++++
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 3 files changed, 42 insertions(+), 0 deletions(-)
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diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
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index 57d7b1f..26136f1 100644
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--- a/include/qemu/osdep.h
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+++ b/include/qemu/osdep.h
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@@ -204,4 +204,15 @@ const char *qemu_get_version(void);
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 void fips_set_state(bool requested);
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 bool fips_get_state(void);
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+/* Return a dynamically allocated pathname denoting a file or directory that is
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+ * appropriate for storing local state.
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+ *
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+ * @relative_pathname need not start with a directory separator; one will be
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+ * added automatically.
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+ *
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+ * The caller is responsible for releasing the value returned with g_free()
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+ * after use.
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+ */
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+char *qemu_get_local_state_pathname(const char *relative_pathname);
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+
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 #endif
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diff --git a/util/oslib-posix.c b/util/oslib-posix.c
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index 631a1de..3dc8b1b 100644
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--- a/util/oslib-posix.c
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+++ b/util/oslib-posix.c
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@@ -47,6 +47,8 @@ extern int daemon(int, int);
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 #  define QEMU_VMALLOC_ALIGN getpagesize()
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 #endif
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+#include <glib/gprintf.h>
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+
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 #include "config-host.h"
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 #include "sysemu/sysemu.h"
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 #include "trace.h"
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@@ -232,3 +234,10 @@ int qemu_utimens(const char *path, const struct timespec *times)
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     return utimes(path, &tv[0]);
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 }
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+
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+char *
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+qemu_get_local_state_pathname(const char *relative_pathname)
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+{
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+    return g_strdup_printf("%s/%s", CONFIG_QEMU_LOCALSTATEDIR,
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+                           relative_pathname);
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+}
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diff --git a/util/oslib-win32.c b/util/oslib-win32.c
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index df2ecbd..961fbf5 100644
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--- a/util/oslib-win32.c
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+++ b/util/oslib-win32.c
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@@ -26,12 +26,17 @@
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  * THE SOFTWARE.
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  */
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 #include <windows.h>
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+#include <glib.h>
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+#include <stdlib.h>
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 #include "config-host.h"
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 #include "sysemu/sysemu.h"
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 #include "qemu/main-loop.h"
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 #include "trace.h"
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 #include "qemu/sockets.h"
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+/* this must come after including "trace.h" */
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+#include <shlobj.h>
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+
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 void *qemu_oom_check(void *ptr)
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 {
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     if (ptr == NULL) {
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@@ -160,3 +165,20 @@ int qemu_get_thread_id(void)
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 {
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     return GetCurrentThreadId();
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 }
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+
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+char *
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+qemu_get_local_state_pathname(const char *relative_pathname)
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+{
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+    HRESULT result;
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+    char base_path[MAX_PATH+1] = "";
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+
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+    result = SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL,
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+                             /* SHGFP_TYPE_CURRENT */ 0, base_path);
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+    if (result != S_OK) {
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+        /* misconfigured environment */
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+        g_critical("CSIDL_COMMON_APPDATA unavailable: %ld", (long)result);
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+        abort();
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+    }
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+    return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", base_path,
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+                           relative_pathname);
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+}
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-- 
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1.7.1
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