[edk2-devel] [PATCH] RedfishPkg/JsonLib: Add JsonLoadString function
Abner Chang
abner.chang at hpe.com
Fri Jan 29 04:20:04 UTC 2021
Add JsonLoadString function to load a NULL terminated-string JSON
Signed-off-by: Abner Chang <abner.chang at hpe.com>
Cc: Leif Lindholm <leif at nuviainc.com>
Cc: Nickle Wang <nickle.wang at hpe.com>
Cc: Michael D Kinney <michael.d.kinney at intel.com>
---
RedfishPkg/Include/Library/JsonLib.h | 21 +++++++++++++++++++++
RedfishPkg/Library/JsonLib/JsonLib.c | 26 ++++++++++++++++++++++++++
2 files changed, 47 insertions(+)
diff --git a/RedfishPkg/Include/Library/JsonLib.h b/RedfishPkg/Include/Library/JsonLib.h
index 3c10f67d27..82ca4bad60 100644
--- a/RedfishPkg/Include/Library/JsonLib.h
+++ b/RedfishPkg/Include/Library/JsonLib.h
@@ -664,6 +664,27 @@ JsonDumpString (
IN UINTN Flags
);
+/**
+ Convert a string to JSON object.
+ The function is used to convert a NULL terminated UTF8 encoded string to a JSON
+ value. Only object and array represented strings can be converted successfully,
+ since they are the only valid root values of a JSON text for UEFI usage.
+
+ Real number and number with exponent part are not supportted by UEFI.
+
+ Caller needs to cleanup the root value by calling JsonValueFree().
+
+ @param[in] String The NULL terminated UTF8 encoded string to convert
+
+ @retval Array JSON value or object JSON value, or NULL when any error occurs.
+
+**/
+EDKII_JSON_VALUE
+EFIAPI
+JsonLoadString (
+ IN CONST CHAR8* String
+ );
+
/**
Load JSON from a buffer.
diff --git a/RedfishPkg/Library/JsonLib/JsonLib.c b/RedfishPkg/Library/JsonLib/JsonLib.c
index 34ff381aee..00dedc1c60 100644
--- a/RedfishPkg/Library/JsonLib/JsonLib.c
+++ b/RedfishPkg/Library/JsonLib/JsonLib.c
@@ -819,6 +819,32 @@ JsonDumpString (
return json_dumps((json_t *)JsonValue, Flags);
}
+/**
+ Convert a string to JSON object.
+ The function is used to convert a NULL terminated UTF8 encoded string to a JSON
+ value. Only object and array represented strings can be converted successfully,
+ since they are the only valid root values of a JSON text for UEFI usage.
+
+ Real number and number with exponent part are not supportted by UEFI.
+
+ Caller needs to cleanup the root value by calling JsonValueFree().
+
+ @param[in] String The NULL terminated UTF8 encoded string to convert
+
+ @retval Array JSON value or object JSON value, or NULL when any error occurs.
+
+**/
+EDKII_JSON_VALUE
+EFIAPI
+JsonLoadString (
+ IN CONST CHAR8* String
+ )
+{
+ json_error_t JsonError;
+
+ return (EDKII_JSON_VALUE) json_loads ((const char *)String, 0, &JsonError);
+}
+
/**
Load JSON from a buffer.
--
2.17.1
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