구차니의 잡동사니 모음

if (typeof query !== 'undefined' && query !== null){

   doStuff();

} 

$ cat .gitignore

node_modules/ 

1. If there is no video displayed on your monitor, make sure that the cables are properly connected and make sure that “Deep S5” option in BIOS SETUP is set to [Disable]. 2. If required, connect a power source to the adapter that lets the smartphone/tablet output HDMI signal 

var ip = require("ip");

console.dir ( ip.address() ); 

#include <stdio.h>

#include <stdlib.h>

void main()

{

        int ret = 0;

        int status = 0;

        unsigned char cmd[255];

        unsigned char id[32] = "admin";

        unsigned char pw[32] = "admin";

        unsigned char url[] = "http://localhost:3000/api/test";

        unsigned char header[] = "-H 'Content-Type: application/json'";

        unsigned char data = "-d '{ \"id\":\"%s\",\"password\":\"%s\"}'";

        sprintf(cmd, "curl -X POST %s %s -d '{ \"id\":\"%s\",\"password\":\"%s\"}'",

                url, header, id, pw);

        printf("%s\n",cmd);

//      ret = system(cmd);

//      wait(&status);

        FILE *output = popen(cmd, "r");

        char buf[255];

        int pos = 0;

        while( !feof(output) && !ferror(output) )

        {

                int bytesRead = fread( buf + pos , 1, 128, output );

                pos += bytesRead;

        }

        printf("buf : [%s]\n",buf);

//      printf("ret : [%d]\n",ret);

//      printf("sta : [%d]\n",WEXITSTATUS(status));

} 

# ./a.out

curl -X POST http://localhost:3000/api/test -H 'Content-Type: application/json' -d '{ "id":"1234","password":"1234"}'

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current

                                 Dload  Upload   Total   Spent    Left  Speed

100   397  100   363  100    34  18426   1725 --:--:-- --:--:-- --:--:-- 19105 

$ git branch

* (detached from 7ea96f5)

  master

$ git checkout master

Switched to branch 'master'

Your branch is behind 'origin/master' by 3 commits, and can be fast-forwarded.

  (use "git pull" to update your local branch) 

$ cat uuid.c

#include <uuid/uuid.h>

#include <stdio.h>

void main()

{

        uuid_t out;

        uuid_generate_random(out);

        printf("%x",out);

}

$ gcc uuid.c -luuid

 typedef unsigned char uuid_t[16];