[edk2-devel] [PATCH] RedfishPkg/JsonLib: Fix build errors
Abner Chang
abner.chang at hpe.com
Mon Jan 25 04:31:54 UTC 2021
This patch fixes the build errors when build JsonLib with EDK2
Redfish feature driver.
- Add JsonLoadString function to load a NULL terminated-string JSON
- json_string_value() in JsonValueGetAsciiString () is removed
by accident.
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/Library/JsonLib/JsonLib.inf | 5 +++--
RedfishPkg/Include/Library/JsonLib.h | 21 ++++++++++++++++++
RedfishPkg/Library/JsonLib/JsonLib.c | 30 ++++++++++++++++++++++++--
3 files changed, 52 insertions(+), 4 deletions(-)
diff --git a/RedfishPkg/Library/JsonLib/JsonLib.inf b/RedfishPkg/Library/JsonLib/JsonLib.inf
index 48b094a78a..9d52a622e1 100644
--- a/RedfishPkg/Library/JsonLib/JsonLib.inf
+++ b/RedfishPkg/Library/JsonLib/JsonLib.inf
@@ -75,12 +75,13 @@
# C4244: conversion from type1 to type2, possible loss of data
# C4334: 32-bit shift implicitly converted to 64-bit
# C4204: nonstandard extension used: non-constant aggregate initializer
+ # C4706: assignment within conditional expression
#
# Define macro HAVE_CONFIG_H to include jansson_private_config.h to build.
# Undefined _WIN32, WIN64, _MSC_VER macros
# On GCC, no error on the unused-function and unused-but-set-variable.
#
- MSFT:*_*_X64_CC_FLAGS = /wd4204 /wd4244 /wd4090 /wd4334 /DHAVE_CONFIG_H=1 /U_WIN32 /UWIN64 /U_MSC_VER
- MSFT:*_*_IA32_CC_FLAGS = /wd4204 /wd4244 /wd4090 /DHAVE_CONFIG_H=1 /U_WIN32 /UWIN64 /U_MSC_VER
+ MSFT:*_*_X64_CC_FLAGS = /wd4204 /wd4244 /wd4090 /wd4334 /wd4706 /DHAVE_CONFIG_H=1 /U_WIN32 /UWIN64 /U_MSC_VER
+ MSFT:*_*_IA32_CC_FLAGS = /wd4204 /wd4244 /wd4090 /wd4706 /DHAVE_CONFIG_H=1 /U_WIN32 /UWIN64 /U_MSC_VER
GCC:*_*_*_CC_FLAGS = -Wno-unused-function -Wno-unused-but-set-variable
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..1762c6f5af 100644
--- a/RedfishPkg/Library/JsonLib/JsonLib.c
+++ b/RedfishPkg/Library/JsonLib/JsonLib.c
@@ -430,10 +430,10 @@ JsonValueGetAsciiString (
IN EDKII_JSON_VALUE Json
)
{
- CHAR8 *AsciiStr;
+ CONST CHAR8 *AsciiStr;
UINTN Index;
- AsciiStr = (CHAR8 *) ((json_t *) Json);
+ AsciiStr = json_string_value ((json_t *) Json);
if (AsciiStr == NULL) {
return NULL;
}
@@ -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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