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'Development'에 해당되는 글 3건

2008/11/26 :: libiconv로 euc-kr문자열 UTF-8으로 변환하는 함수 구현.
2008/11/11 :: curl URL redirection example
2008/11/10 :: [Linux C API]mac address가져오기.

Development 2008/11/26 09:38

libiconv로 euc-kr문자열 UTF-8으로 변환하는 함수 구현.

posted by 강지훈

Development/cURL 2008/11/11 10:27

curl URL redirection example

/*
 * curl_redirection example
 *
 * @date 2008.11.10
 * @author Kang, Ji-Hoon (kang@ghoon.net)
 */
#include <stdio.h>
#include <memory.h>
#include <curl/curl.h>

typedef struct FtpFile {
    char filename[FILENAME_MAX];
    FILE* stream;
} FtpFile;

static size_t
header_callback(void* ptr, size_t size, size_t nmemb, void* stream)
{
    char* buff = (char*) ptr;
    const char* content_disposition = "Content-Disposition: attachment;"
        "filename=";

if (strstr(buff, content_disposition)) {
        FtpFile* pFileInfo = (FtpFile*) stream;
        memset(pFileInfo->filename, 0, sizeof(pFileInfo->filename));
        memcpy(pFileInfo->filename, buff+strlen(content_disposition),
                strlen(buff) - strlen(content_disposition) - 2);

printf("catched filename : %s length : %d\n", pFileInfo->filename,
                strlen(pFileInfo->filename));
    }
    return size * nmemb;
}

static size_t
write_callback(void* buffer, size_t size, size_t nmemb, void* stream)
{
    FtpFile* out = (FtpFile*) stream;
    if ((out && !out->stream) && out->filename) {
        out->stream = fopen(out->filename, "wb");
        if (!out->stream) {
            return -1;
        }
    }
    return fwrite(buffer, size, nmemb, out->stream);
}

/**
 * @param [in] hCurl - curl handle
 * @param [in] sURL -
 * @param [in] sLocalDir -
 * @return 'CURLE_OK' ok, otherwise failure.
 */
static CURLcode
download(CURL* hCurl, const char* sURL, const char* sLocalDir)
{
    FtpFile localfile;
    memset(&localfile, 0, sizeof(FtpFile));

curl_easy_setopt(hCurl, CURLOPT_HEADERFUNCTION, header_callback);
    curl_easy_setopt(hCurl, CURLOPT_HEADERDATA, &localfile);
    curl_easy_setopt(hCurl, CURLOPT_URL, sURL);
    curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, write_callback);
    curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, &localfile);
    curl_easy_setopt(hCurl, CURLOPT_VERBOSE, 1);

CURLcode res =  curl_easy_perform(hCurl);

if (localfile.stream) {
        fclose(localfile.stream);
    }

return res;
}

int main(int argc, char** argv)
{
    const char* sURL = "http://fmov.pann.com/mmediaDownload.jsp?"
        "FileID=12992569";
    const char* sLocalDir = "/home/david/Download";
    CURL* hCurl = NULL;

curl_global_init(CURL_GLOBAL_ALL);
    hCurl = curl_easy_init();

download(hCurl, sURL, sLocalDir);

curl_easy_cleanup(hCurl);
    curl_global_cleanup();

return 0;
}

posted by 강지훈

Trackback 0 : Comment 0

Development 2008/11/10 09:43

[Linux C API]mac address가져오기.

#include <stdio.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <memory.h>
#include <netinet/ether.h>
#include <net/if.h>

/**
 * Gets mac address with specified interface name.
 *
 * @param szInfName [in] interface name.
 * @param szMAC [out] retrieved mac address.
 * @param nLen [out] size of mac address string.
 * @return 0 is success, otherwise failure.
 *
 * @author Kang, Ji-Hoon (kang@ghoon.com)
 * @date 2008-11-07
 */
int getMacAddr(const char* szInfName, char* szMac, int* nLen)
{
    char* mac_addr = NULL;
    struct ifreq  ifrq;
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    struct sockaddr *sa = NULL;

memset(&ifrq, 0, sizeof(ifrq));
    strcpy(ifrq.ifr_name , szInfName);

if (ioctl(fd, SIOCGIFHWADDR, &ifrq) < 0) {
        close(fd);
        fprintf(stderr, "%s:%d> ERROR getMacAddr", __FILE__, __LINE__);
        return 1;
    }

sa = &(ifrq.ifr_hwaddr);
    mac_addr = (char*) ether_ntoa((struct ether_addr*) sa->sa_data );
    if (mac_addr == NULL) {
        return 1;
    }

memset(szMac, 0, sizeof(szMac));
    sprintf(szMac, "%s", mac_addr);
    *nLen = strlen(szMac);

close(fd);
    return 0;

}

int main(int argc, char** argv)
{
    char sMacAddr[64] = {0,};
    int nLength = 0;
    if (getMacAddr(sMacAddr, &nLength) != 0) {
        return 1;
    }
    printf("MacAddr : %s\nString length : %d\n", sMacAddr, nLength);
    return 0;

}

posted by 강지훈

Trackback 0 : Comment 0

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'Development'에 해당되는 글 3건

libiconv로 euc-kr문자열 UTF-8으로 변환하는 함수 구현.

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curl URL redirection example

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[Linux C API]mac address가져오기.

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'Development'에 해당되는 글 3건

libiconv로 euc-kr문자열 UTF-8으로 변환하는 함수 구현.

curl URL redirection example

[Linux C API]mac address가져오기.