218 lines
6.6 KiB
Diff
218 lines
6.6 KiB
Diff
From 13e3222f3463578ab18ee8efc8502c6dfd9f51a4 Mon Sep 17 00:00:00 2001
|
||
From: "Richard W.M. Jones" <rjones@redhat.com>
|
||
Date: Tue, 22 Oct 2024 15:55:00 +0100
|
||
Subject: [PATCH] lib/info.c: Replace jansson with json-c
|
||
|
||
---
|
||
lib/Makefile.am | 4 ++-
|
||
lib/info.c | 85 +++++++++++++++++++++++++------------------------
|
||
2 files changed, 47 insertions(+), 42 deletions(-)
|
||
|
||
diff --git a/lib/Makefile.am b/lib/Makefile.am
|
||
index 0ed1576f8..60567b04b 100644
|
||
--- a/lib/Makefile.am
|
||
+++ b/lib/Makefile.am
|
||
@@ -138,7 +138,8 @@ libguestfs_la_CFLAGS = \
|
||
$(PCRE2_CFLAGS) \
|
||
$(LIBVIRT_CFLAGS) \
|
||
$(LIBXML2_CFLAGS) \
|
||
- $(JANSSON_CFLAGS)
|
||
+ $(JANSSON_CFLAGS) \
|
||
+ $(JSON_C_CFLAGS)
|
||
|
||
libguestfs_la_LIBADD = \
|
||
../common/errnostring/liberrnostring.la \
|
||
@@ -150,6 +151,7 @@ libguestfs_la_LIBADD = \
|
||
$(LIBVIRT_LIBS) $(LIBXML2_LIBS) \
|
||
$(SELINUX_LIBS) \
|
||
$(JANSSON_LIBS) \
|
||
+ $(JSON_C_LIBS) \
|
||
../gnulib/lib/libgnu.la \
|
||
$(LIBSOCKET) \
|
||
$(LIB_CLOCK_GETTIME) \
|
||
diff --git a/lib/info.c b/lib/info.c
|
||
index b60fc8b39..f325bfabc 100644
|
||
--- a/lib/info.c
|
||
+++ b/lib/info.c
|
||
@@ -37,42 +37,45 @@
|
||
#include <sys/resource.h>
|
||
#endif
|
||
|
||
-#include <jansson.h>
|
||
+#include <json.h>
|
||
|
||
#include "guestfs.h"
|
||
#include "guestfs-internal.h"
|
||
#include "guestfs-internal-actions.h"
|
||
|
||
-#define CLEANUP_JSON_T_DECREF __attribute__((cleanup(cleanup_json_t_decref)))
|
||
+#define CLEANUP_JSON_OBJECT_PUT \
|
||
+ __attribute__((cleanup(cleanup_json_object_put)))
|
||
|
||
static void
|
||
-cleanup_json_t_decref (void *ptr)
|
||
+cleanup_json_object_put (void *ptr)
|
||
{
|
||
- json_decref (* (json_t **) ptr);
|
||
+ json_object_put (* (json_object **) ptr);
|
||
}
|
||
|
||
-static json_t *get_json_output (guestfs_h *g, const char *filename);
|
||
+static json_object *get_json_output (guestfs_h *g, const char *filename);
|
||
static int qemu_img_supports_U_option (guestfs_h *g);
|
||
static void set_child_rlimits (struct command *);
|
||
|
||
char *
|
||
guestfs_impl_disk_format (guestfs_h *g, const char *filename)
|
||
{
|
||
- CLEANUP_JSON_T_DECREF json_t *tree = get_json_output (g, filename);
|
||
- json_t *node;
|
||
+ CLEANUP_JSON_OBJECT_PUT json_object *tree = get_json_output (g, filename);
|
||
+ json_object *node;
|
||
+ const char *format;
|
||
|
||
if (tree == NULL)
|
||
return NULL;
|
||
|
||
- if (!json_is_object (tree))
|
||
+ if (json_object_get_type (tree) != json_type_object)
|
||
goto bad_type;
|
||
|
||
- node = json_object_get (tree, "format");
|
||
- if (!json_is_string (node))
|
||
+ node = json_object_object_get (tree, "format");
|
||
+ if (node == NULL)
|
||
goto bad_type;
|
||
|
||
- return safe_strndup (g, json_string_value (node),
|
||
- json_string_length (node)); /* caller frees */
|
||
+ format = json_object_get_string (node);
|
||
+
|
||
+ return safe_strdup (g, format); /* caller frees */
|
||
|
||
bad_type:
|
||
error (g, _("qemu-img info: JSON output did not contain ‘format’ key"));
|
||
@@ -82,20 +85,20 @@ guestfs_impl_disk_format (guestfs_h *g, const char *filename)
|
||
int64_t
|
||
guestfs_impl_disk_virtual_size (guestfs_h *g, const char *filename)
|
||
{
|
||
- CLEANUP_JSON_T_DECREF json_t *tree = get_json_output (g, filename);
|
||
- json_t *node;
|
||
+ CLEANUP_JSON_OBJECT_PUT json_object *tree = get_json_output (g, filename);
|
||
+ json_object *node;
|
||
|
||
if (tree == NULL)
|
||
return -1;
|
||
|
||
- if (!json_is_object (tree))
|
||
+ if (json_object_get_type (tree) != json_type_object)
|
||
goto bad_type;
|
||
|
||
- node = json_object_get (tree, "virtual-size");
|
||
- if (!json_is_integer (node))
|
||
+ node = json_object_object_get (tree, "virtual-size");
|
||
+ if (node == NULL)
|
||
goto bad_type;
|
||
|
||
- return json_integer_value (node);
|
||
+ return json_object_get_int64 (node);
|
||
|
||
bad_type:
|
||
error (g, _("qemu-img info: JSON output did not contain ‘virtual-size’ key"));
|
||
@@ -105,24 +108,18 @@ guestfs_impl_disk_virtual_size (guestfs_h *g, const char *filename)
|
||
int
|
||
guestfs_impl_disk_has_backing_file (guestfs_h *g, const char *filename)
|
||
{
|
||
- CLEANUP_JSON_T_DECREF json_t *tree = get_json_output (g, filename);
|
||
- json_t *node;
|
||
+ CLEANUP_JSON_OBJECT_PUT json_object *tree = get_json_output (g, filename);
|
||
+ json_object *node;
|
||
|
||
if (tree == NULL)
|
||
return -1;
|
||
|
||
- if (!json_is_object (tree))
|
||
+ if (json_object_get_type (tree) != json_type_object)
|
||
goto bad_type;
|
||
|
||
- node = json_object_get (tree, "backing-filename");
|
||
+ node = json_object_object_get (tree, "backing-filename");
|
||
if (node == NULL)
|
||
- return 0; /* no backing-filename key means no backing file */
|
||
-
|
||
- /* Work on the assumption that if this field is null, it means
|
||
- * no backing file, rather than being an error.
|
||
- */
|
||
- if (json_is_null (node))
|
||
- return 0;
|
||
+ return 0; /* no backing-filename key or null means no backing file */
|
||
return 1;
|
||
|
||
bad_type:
|
||
@@ -136,12 +133,12 @@ guestfs_impl_disk_has_backing_file (guestfs_h *g, const char *filename)
|
||
static void parse_json (guestfs_h *g, void *treevp, const char *input, size_t len);
|
||
#define PARSE_JSON_NO_OUTPUT ((void *) -1)
|
||
|
||
-static json_t *
|
||
+static json_object *
|
||
get_json_output (guestfs_h *g, const char *filename)
|
||
{
|
||
CLEANUP_CMD_CLOSE struct command *cmd = guestfs_int_new_command (g);
|
||
int r;
|
||
- json_t *tree = NULL;
|
||
+ json_object *tree = NULL;
|
||
|
||
guestfs_int_cmd_add_arg (cmd, "qemu-img");
|
||
guestfs_int_cmd_add_arg (cmd, "info");
|
||
@@ -176,15 +173,16 @@ get_json_output (guestfs_h *g, const char *filename)
|
||
return NULL;
|
||
}
|
||
|
||
- return tree; /* caller must call json_decref (tree) */
|
||
+ return tree; /* caller must call json_object_put (tree) */
|
||
}
|
||
|
||
/* Parse the JSON document printed by qemu-img info --output json. */
|
||
static void
|
||
parse_json (guestfs_h *g, void *treevp, const char *input, size_t len)
|
||
{
|
||
- json_t **tree_ret = treevp;
|
||
- json_error_t err;
|
||
+ json_tokener *tok = NULL;
|
||
+ json_object **tree_ret = treevp;
|
||
+ enum json_tokener_error err;
|
||
|
||
assert (*tree_ret == NULL);
|
||
|
||
@@ -197,15 +195,20 @@ parse_json (guestfs_h *g, void *treevp, const char *input, size_t len)
|
||
return;
|
||
}
|
||
|
||
- debug (g, "%s: qemu-img info JSON output:\n%.*s\n", __func__, (int) len, input);
|
||
+ debug (g, "%s: qemu-img info JSON output:\n%.*s\n",
|
||
+ __func__, (int) len, input);
|
||
|
||
- *tree_ret = json_loadb (input, len, 0, &err);
|
||
- if (*tree_ret == NULL) {
|
||
- if (strlen (err.text) > 0)
|
||
- error (g, _("qemu-img info: JSON parse error: %s"), err.text);
|
||
- else
|
||
- error (g, _("qemu-img info: unknown JSON parse error"));
|
||
+ tok = json_tokener_new ();
|
||
+ json_tokener_set_flags (tok,
|
||
+ JSON_TOKENER_STRICT | JSON_TOKENER_VALIDATE_UTF8);
|
||
+ *tree_ret = json_tokener_parse_ex (tok, input, len);
|
||
+ err = json_tokener_get_error (tok);
|
||
+ if (err != json_tokener_success) {
|
||
+ error (g, _("qemu-img info: JSON parse error: %s"),
|
||
+ json_tokener_error_desc (err));
|
||
+ *tree_ret = NULL; /* should already be */
|
||
}
|
||
+ json_tokener_free (tok);
|
||
}
|
||
|
||
static void
|
||
--
|
||
2.43.0
|
||
|