* cURL\uc5d0 \uad00\ud55c \uac1c\ub150 \uc815\ub9ac \ubc0f \uc608\uc81c<\/span><\/strong><\/p>\n gcc\u00a0-L<\/strong>\/\uacbd\ub85c\/lib\/\u00a0-I<\/strong>\/\uacbd\ub85c\/include\/\u00a0-o<\/strong>\u00a0testprogram test.c\u00a0-l<\/strong>curl<\/p>\n # QT\uac1c\ubc1c \ud658\uacbd<\/span><\/p>\n *.pro \ud30c\uc77c\uc5d0 \ub77c\uc774\ube0c\ub7ec\ub9ac \uc0ac\uc6a9\uc744 \uc704\ud574 \ub2e4\uc74c\uc744 \ucd94\uac00 \ud55c\ub2e4. \ucd9c\ucc98 :\u00a0http:\/\/sanghun.tistory.com\/197<\/a><\/p>\n libCURL\uc740 C\u00a0\ub77c\uc774\ube0c\ub7ec\ub9ac<\/a>\uc774\ub2e4. \uba87\uba87 \uc608\uc81c\ub294 \ube60\ub978\uc791\uc131\uc744 \uc704\ud574\uc11c C++\uc744 \uc774\uc6a9\ud560\uac83\uc774\uae34 \ud558\uc9c0\ub9cc, \uc774\ud574\ud558\uace0 \uc0ac\uc6a9\ud558\ub294\ub370 \ubb34\ub9ac\ub294 \uc5c6\uc744 \uac83\uc774\ub2e4 – C++\uc758 \ud15c\ud50c\ub9bf\uc740 \ud504\ub85c\uadf8\ub7a8 \uc791\uc131\uc5d0 \uac78\ub9ac\ub294 \uc2dc\uac04\uc744 \ub300\ud3ed \uc904\uc694\uc900\ub2e4. \ud14c\uc2a4\ud2b8 \ud504\ub85c\uadf8\ub7a8\uc744 \ub9cc\ub4e4\uace0\uc790 \ud560\ub54c \uc2dc\uac04\uc744 \uc808\uc57d\ud558\ub3c4\ub85d \ud574 \uc900\ub2e4 -.<\/p>\n libCURL\uc740 \uc774\ub7ec\ud55c \ud504\ub85c\uc138\uc2a4\uc758 \uc911\uac04\uc5d0\uc11c \uc911\uacc4\uc5ed\ud560\uc744 \ud55c\ub2e4. \uc0ac\uc6a9\uc740 context \uac1d\uccb4\uc640 \uc694\uccad\ub370\uc774\ud130 (URL, \uc778\uc790)\uc640\u00a0\ucf5c\ubc31<\/a>(callback functions)\ud615\uc2dd\uc758 response handler\ub97c \uc815\uc758\ud574 \uc8fc\uba74\ub41c\ub2e4. \uc774 \uac1d\ucc44\ub97c \ub77c\uc774\ube0c\ub7ec\ub9ac\uc5d0 \ub118\uae30\uac8c \ub418\uba74, \ub77c\uc774\ube0c\ub7ec\ub9ac\ub294 \uc800\uc218\uc900\uc5d0\uc11c \uc77c\uc5b4\ub098\ub294 \ub124\ud2b8\uc6cc\ud06c \ud1b5\uc2e0\uc744 \uc54c\uc544\uc11c \ud578\ub4e4\ud558\uace0 \uadf8 \uacb0\uacfc \uac12\uc744 response handler\ub97c \ud1b5\ud574\uc11c \ub118\uaca8\uc8fc\uac8c \ub41c\ub2e4.<\/p>\n curl_easy_setopt \ud568\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uc120\uc5b8\ub418\uc5b4 \uc788\ub2e4.<\/p>\n curl_easy_setopt \ub97c \uc774\uc6a9\ud574\uc11c context\uac1d\uccb4\ub97c \uc124\uc815\ud55c\ub2e4. CURLOPT_URL\uc740 \ubaa9\ud45c URL\uc774\ub2e4.<\/p>\n curl_easy_setopt\ub97c \uc774\uc6a9\ud558\uba74 \uc774\uc678\uc5d0\ub3c4 \uba87 \uac00\uc9c0 \uc124\uc815\uc744 \ub354 \ud574\uc904 \uc218 \uc788\ub2e4.<\/p>\n header \uc815\ubcf4\ub294 \ud45c\uc900\uc5d0\ub7ec\ub85c, body\uc815\ubcf4\ub294 \ud45c\uc900\ucd9c\ub825\uc73c\ub85c \uac00\uc838\uc624\ub3c4\ub85d \uc124\uc815\uc744 \ud588\ub2e4.<\/p>\n \uc6d0\ud558\ub294 \uac12\uc744 \uac00\uc838\uc624\uae30 \uc704\ud574\uc11c\ub294 \ub370\uc774\ud130\uc758 \ud0c0\uc785\uc5d0 \ub9de\ub294 \uc778\uc790\ub97c \uc368\uc57c \ud55c\ub2e4.\u00a0200<\/strong>\uc774\ub098\u00a0404<\/strong>\uc640 \uac19\uc740 HTTP \uc751\ub2f5\ucf54\ub4dc\ub97c \uac00\uc838\uc624\uae38 \uc6d0\ud55c\ub2e4\uba74\u00a0CURLINFO_HTTP_CODE<\/strong>\ub97c \uc804\uc1a1\ubc1b\uc740 \ubb38\uc11c\uc758 \ud06c\uae30\ub97c \uc54c\uc544\ub0b4\uae38 \uc6d0\ud55c\ub2e4\uba74\u00a0CURLINFO_SIZE_DOWNLOAD<\/strong>\ub97c \uc0ac\uc6a9\ud558\ub294 \uc2dd\uc774\ub2e4.<\/p>\n
\n<\/strong><\/p>\n
\n<\/span><\/div>\n
\nINCLUDEPATH +=.\/ \\<\/p>\n
\nextern “C” {
\n#include <curl\/curl.h>
\n}<\/div>\n<\/div>\n<\/h2>\n
1<\/a>\u00a0Curl\uc5d0 \ub300\ud574\uc11c<\/h2>\n
\n
<\/a>2<\/a>\u00a0Curl \uc0ac\uc6a9 \uae30\ucd08<\/h2>\n
\n
![\"<!>\"](\"http:\/\/www.joinc.co.kr\/modules\/moniwiki\/imgs\/attention.gif\" "\\"<!>\\"")
\u00a0\uc880\ub354 \uc790\uc138\ud55c \ub0b4\uc6a9\uc740\u00a0TCP\/IP<\/a>\ubb38\uc11c\ub97c \ucc38\uace0\ud558\uae30 \ubc14\ub780\ub2e4.<\/div>\n<\/li>\n<\/ol>\n\n
curl_easy_setopt(CURL *ctx, CURLoption key, value)<\/pre>\n
<\/a>3<\/a>\u00a0HTTP GET:\uc6f9 \ud398\uc774\uc9c0 \uae01\uc5b4\uc624\uae30<\/h2>\n
CURL *ctx = curl_easy_init ();<\/pre>\n
curl_easy_setopt(ctx, CURLOPT_URL, argv[1]);<\/pre>\n
curl_easy_setiopt(ctx, CURLOPT_WRITEHEADER, stderr);\ncurl_easy_setiopt(ctx, CURLOPT_WRITEDATA, stdout);<\/pre>\n
const CURLcode rc = curl_easy_perform<\/a>(ctx);\nif (CURLE_OK != rc)\n{\n std::cerr << \"Error from cURL: \" << curl_easy_strerror<\/a>(rc) std::endl;\n}\nelse\n{\n \/\/ \ub370\uc774\ud130 \ucc98\ub9ac\n}<\/pre>\n
long statLong;\ncurl_easy_getinfo(ctx, CURLINFO_HTTP_CODE, &statLong);\nstd::cout << \"HTTP response code: \" << statLong << std::endl;<\/pre>\n
\/*\nsample for O'ReillyNet article on libcURL:\n {TITLE}\n {URL}\n AUTHOR: Ethan McCallum\n\nScenario: use http\/GET to fetch a webpage\n\n\uc774 \ucf54\ub4dc\ub294 Ubuntu \ub9ac\ub205\uc2a4 Kernel 2.6.15\uc5d0\uc11c \nlibcURL \ubc84\uc83c 7.15.1\ub85c \ud14c\uc2a4\ud2b8 \ub418\uc5c8\ub2e4.\n2006\ub144 8\uc6d4 3\uc77c\n*\/\n\n#include<iostream>\n\nextern \"C\" {\n #include<curl\/curl.h>\n}\n\n\/\/ - - - - - - - - - - - - - - - - - - - -\n\nenum {\n ERROR_ARGS = 1 ,\n ERROR_CURL_INIT = 2\n} ;\n\nenum {\n OPTION_FALSE = 0 ,\n OPTION_TRUE = 1\n} ;\n\nenum {\n FLAG_DEFAULT = 0 \n} ;\n\n\/\/ - - - - - - - - - - - - - - - - - - - -\n\nint main<\/a>( const int argc , const char** argv ){\n\n if( argc != 2 ){\n std::cerr << \" Usage: .\/\" << argv[0] << \" {url} [debug]\" << std::endl ;\n return<\/a>( ERROR_ARGS ) ;\n }\n\n const char* url = argv[1] ;\n\n \/\/ lubcURL \ucd08\uae30\ud654 \n curl_global_init<\/a>( CURL_GLOBAL_ALL ) ;\n\n \/\/ context\uac1d\uccb4\uc758 \uc0dd\uc131\n CURL* ctx = curl_easy_init<\/a>() ;\n\n if( NULL == ctx ){\n std::cerr << \"Unable to initialize cURL interface\" << std::endl ;\n return<\/a>( ERROR_CURL_INIT ) ;\n }\n\n \/\/ context \uac1d\uccb4\ub97c \uc124\uc815\ud55c\ub2e4. \n \/\/ \uae01\uc5b4\uc62c url\uc744 \uba85\uc2dc\ud558\uace0, url\uc774 URL\uc815\ubcf4\uc784\uc744 \uc54c\ub824\uc900\ub2e4.\n curl_easy_setopt<\/a>( ctx , CURLOPT_URL, url ) ;\n\n \/\/ no progress bar:\n curl_easy_setopt<\/a>( ctx , CURLOPT_NOPROGRESS , OPTION_TRUE ) ;\n\n \/*\n By default, headers are stripped from the output.\n They can be:\n\n - passed through a separate FILE* (CURLOPT_WRITEHEADER)\n\n - included in the body's output (CURLOPT_HEADER -> nonzero value)\n (here, the headers will be passed to whatever function\n processes the body, along w\/ the body)\n\n - handled with separate callbacks (CURLOPT_HEADERFUNCTION)\n (in this case, set CURLOPT_WRITEHEADER to a\n matching struct for the function)\n\n *\/\n\n \/\/ \ud5e4\ub354\ub294 \ud45c\uc900\uc5d0\ub7ec\ub85c \ucd9c\ub825\ud558\ub3c4\ub85d \ud558\ub2e4. \n curl_easy_setopt<\/a>( ctx , CURLOPT_WRITEHEADER , stderr ) ;\n\n \/\/ body \ub370\uc774\ud130\ub294 \ud45c\uc900\ucd9c\ub825 \ud558\ub3c4\ub85d \ud55c\ub2e4.\n curl_easy_setopt<\/a>( ctx , CURLOPT_WRITEDATA , stdout ) ;\n\n \/\/ context \uac1d\uccb4\uc758 \uc124\uc815 \uc885\ub8cc \n\n \/\/ \uc6f9\ud398\uc774\uc9c0\ub97c \uae01\uc5b4\uc628\ub2e4. \n\n const CURLcode rc = curl_easy_perform<\/a>( ctx ) ;\n\n if( CURLE_OK != rc ){\n\n std::cerr << \"Error from cURL: \" << curl_easy_strerror<\/a>( rc ) << std::endl ;\n\n }else{\n\n \/\/ get some info about the xfer:\n double statDouble ;\n long statLong ;\n char* statString = NULL ;\n\n \/\/ HTTP \uc751\ub2f5\ucf54\ub4dc\ub97c \uc5bb\uc5b4\uc628\ub2e4. \n if( CURLE_OK == curl_easy_getinfo<\/a>( ctx , CURLINFO_HTTP_CODE , &statLong ) ){\n std::cout << \"Response code: \" << statLong << std::endl ;\n }\n\n \/\/ Content-Type \ub97c \uc5bb\uc5b4\uc628\ub2e4.\n if( CURLE_OK == curl_easy_getinfo<\/a>( ctx , CURLINFO_CONTENT_TYPE , &statString ) ){\n std::cout << \"Content type: \" << statString << std::endl ;\n }\n\n \/\/ \ub2e4\uc6b4\ub85c\ub4dc\ud55c \ubb38\uc11c\uc758 \ud06c\uae30\ub97c \uc5bb\uc5b4\uc628\ub2e4.\n if( CURLE_OK == curl_easy_getinfo<\/a>( ctx , CURLINFO_SIZE_DOWNLOAD , &statDouble ) ){\n std::cout << \"Download size: \" << statDouble << \"bytes\" << std::endl ;\n }\n\n \/\/ \n if( CURLE_OK == curl_easy_getinfo<\/a>( ctx , CURLINFO_SPEED_DOWNLOAD , &statDouble ) ){\n std::cout << \"Download speed: \" << statDouble << \"bytes\/sec\" << std::endl ;\n }\n\n }\n\n \/\/ cleanup\n curl_easy_cleanup<\/a>( ctx ) ;\n curl_global_cleanup<\/a>() ;\n\n return<\/a>( 0 ) ;\n\n} \/\/ main<\/a>()<\/pre>\n