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/******************************************************************************
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* Copyright © 2014-2018 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "cJSON.c"
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char *nonportable_path(char *str)
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{
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int32_t i;
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for (i=0; str[i]!=0; i++)
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if ( str[i] == '/' )
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str[i] = '\\';
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return(str);
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}
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char *portable_path(char *str)
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{
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#ifdef _WIN32
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return(nonportable_path(str));
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#else
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#ifdef __PNACL
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/*int32_t i,n;
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if ( str[0] == '/' )
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return(str);
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else
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{
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n = (int32_t)strlen(str);
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for (i=n; i>0; i--)
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str[i] = str[i-1];
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str[0] = '/';
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str[n+1] = 0;
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}*/
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#endif
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return(str);
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#endif
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}
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void *loadfile(char *fname,uint8_t **bufp,long *lenp,long *allocsizep)
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{
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FILE *fp;
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long filesize,buflen = *allocsizep;
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uint8_t *buf = *bufp;
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*lenp = 0;
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if ( (fp= fopen(compatible_path(fname),"rb")) != 0 )
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{
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fseek(fp,0,SEEK_END);
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filesize = ftell(fp);
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if ( filesize == 0 )
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{
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fclose(fp);
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*lenp = 0;
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printf("loadfile null size.(%s)\n",fname);
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return(0);
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}
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if ( filesize > buflen )
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{
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*allocsizep = filesize;
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*bufp = buf = (uint8_t *)realloc(buf,(long)*allocsizep+64);
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}
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rewind(fp);
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if ( buf == 0 )
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printf("Null buf ???\n");
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else
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{
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if ( fread(buf,1,(long)filesize,fp) != (unsigned long)filesize )
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printf("error reading filesize.%ld\n",(long)filesize);
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buf[filesize] = 0;
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}
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fclose(fp);
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*lenp = filesize;
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//printf("loaded.(%s)\n",buf);
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} //else printf("OS_loadfile couldnt load.(%s)\n",fname);
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return(buf);
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}
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void *filestr(long *allocsizep,char *_fname)
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{
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long filesize = 0; char *fname,*buf = 0; void *retptr;
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*allocsizep = 0;
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fname = malloc(strlen(_fname)+1);
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strcpy(fname,_fname);
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retptr = loadfile(fname,&buf,&filesize,allocsizep);
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free(fname);
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return(retptr);
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}
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char *send_curl(char *url)
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{
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long fsize; char curlstr[1024],*fname = "/tmp/oraclefeed.json"
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sprintf(curlstr,"curl --url \"%s\" > %s",url);
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system(curlstr);
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return(filestr(&fsize,fname));
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}
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cJSON *url_json(char *url)
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{
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char *jsonstr; cJSON *json = 0;
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if ( (jsonstr= send_curl(url)) != 0 )
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{
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printf("(%s) -> (%s)\n",url,jsonstr);
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json = cJSON_Parse(jsonstr);
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free(jsonstr);
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}
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return(json);
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}
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int32_t main(int32_t argc,char **argv)
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{
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cJSON *pjson,*bpi,*usd;
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printf("Powered by CoinDesk (%s)\n","https://www.coindesk.com/price/");
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if ( (pjson= url_json("http://api.coindesk.com/v1/bpi/currentprice.json","")) != 0 )
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{
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if ( (bpi= jobj(pjson,"bpi")) != 0 && (usd= jobj(bpi,"USD")) != 0 )
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printf("BTC/USD %.4f\n",jdouble(usd,"rate_float"));
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json_free(pjson);
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}
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return(0);
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}
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