--- /dev/null
+// :vi sw=4 ts=4 noet:
+/*
+==================================================================================
+ Copyright (c) 2019 Nokia
+ Copyright (c) 2018-2019 AT&T Intellectual Property.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+==================================================================================
+*/
+
+/*
+ Mnemonic: wrapper.c
+ Abstract: Functions that may make life easier for wrappers written on top
+ of the library which don't have access to header files.
+ Author: E. Scott Daniels
+ Date: 3 May 2019
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "../include/rmr.h"
+
+#define ADD_SEP 1
+#define NO_SEP 0
+
+/*
+ Build a "name": value sequence with an optional trailing
+ seperator. Caller must free the buffer after use.
+*/
+static char* build_ival( char* name, int val, int add_sep ) {
+ char wbuf[512];
+
+ snprintf( wbuf, sizeof( wbuf ), "\"%s\": %d%s", name, val, add_sep ? "," : "" );
+ return strdup( wbuf );
+}
+
+/*
+ Builds a "name": "string" sequence with an optional trailing
+ separator. Caller must free resulting string.
+*/
+static char* build_sval( char* name, char* val, int add_sep ) {
+ char wbuf[512];
+
+ snprintf( wbuf, sizeof( wbuf ), "\"%s\": \"%s\"%s", name, val, add_sep ? "," : "" );
+ return strdup( wbuf );
+}
+
+
+/*
+ Similar to strcat, bangs src onto the end of target, but UNLIKE
+ strcat src is freed as a convenience. Max is the max amount
+ that target can accept; we don't bang on if src len is
+ larger than max. Return is the size of src; 0 if the
+ target was not modified. If target is not modified, then
+ src is NOT released.
+*/
+static int bang_on( char* target, char* src, int max ) {
+ int len;
+ int rc = 0; // return code, assume error
+
+ if( src && target ) {
+ len = strlen( src );
+ if( (rc = len <= max ? len : 0 ) > 0 ) { // if it fits, add it.
+ strcat( target, src );
+ free( src );
+ }
+ }
+
+ return rc;
+}
+
+/*
+ Returns a set of json with the constants which are set in the header.
+*/
+extern char* rmr_get_consts( ) {
+ int remain; // bytes remaining in wbuf
+ int slen = 0; // length added
+ char wbuf[2048];
+ char* phrase;
+
+ snprintf( wbuf, sizeof( wbuf ), "{ " );
+ remain = sizeof( wbuf ) - strlen( wbuf ) -10; // reserve some bytes allowing us to close the json
+
+ phrase = build_ival( "RMR_MAX_XID", RMR_MAX_XID, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_MAX_SID", RMR_MAX_SID, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_MAX_MEID", RMR_MAX_MEID, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_MAX_SRC", RMR_MAX_SRC, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_MAX_RCV_BYTES", RMR_MAX_RCV_BYTES, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+
+ phrase = build_ival( "RMRFL_NONE", RMRFL_NONE, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMRFL_AUTO_ALLOC", RMRFL_AUTO_ALLOC, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+
+ phrase = build_ival( "RMR_DEF_SIZE", RMR_DEF_SIZE, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+
+ phrase = build_ival( "RMR_VOID_MSGTYPE", RMR_VOID_MSGTYPE, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_VOID_SUBID", RMR_VOID_SUBID , ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+
+ phrase = build_ival( "RMR_OK", RMR_OK, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_BADARG", RMR_ERR_BADARG, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_NOENDPT", RMR_ERR_NOENDPT, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_EMPTY", RMR_ERR_EMPTY, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_NOHDR", RMR_ERR_NOHDR, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_SENDFAILED", RMR_ERR_SENDFAILED, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_CALLFAILED", RMR_ERR_CALLFAILED, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_NOWHOPEN", RMR_ERR_NOWHOPEN, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_WHID", RMR_ERR_WHID, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_OVERFLOW", RMR_ERR_OVERFLOW, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_RETRY", RMR_ERR_RETRY, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_RCVFAILED", RMR_ERR_RCVFAILED, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_TIMEOUT", RMR_ERR_TIMEOUT, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_UNSET", RMR_ERR_UNSET, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_TRUNC", RMR_ERR_TRUNC, ADD_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+ phrase = build_ival( "RMR_ERR_INITFAILED", RMR_ERR_INITFAILED, NO_SEP );
+ remain -= bang_on( wbuf, phrase, remain );
+
+ strcat( wbuf, " }" );
+ return strdup( wbuf ); // chop unused space and return
+}
Code Review / ric-plt / lib / rmr.git / blobdiff