摘自:https://blog.csdn.net/swj9099/article/details/85292444
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <pthread.h> #include <time.h> #include <sys/stat.h> #include <signal.h> #include <curl/curl.h> #include <curl/easy.h> #include <string.h> /* gcc curl_test.cpp -I /usr/local/curl/include/ -I /usr/local/libssh2/include/ -I /usr/local/openssl/include/ -L /usr/local/curl/lib/ -L /usr/local/libssh2/lib/ -L /usr/local/openssl/lib/ -lrt -lcurl -lssh2 -lssl -lcrypto -ldl -lz */ static void gloale_init(void) { curl_global_init(CURL_GLOBAL_DEFAULT); return; } static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream) //回调函数 { curl_off_t nread; size_t retcode = fread(ptr, size, nmemb, (FILE*)(stream)); nread = (curl_off_t)retcode; return retcode; } static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream) { int written = fwrite(ptr, size, nmemb, (FILE *)stream); return written; } static size_t upload(const char *user, const char *passwd, const char *url, const char *path) { CURL *curl = NULL; CURLcode res; // char *s3 = NULL; // asprintf(&s3, "%s:%s", user, passwd); // free(s3); // system("ls write_file"); FILE *pSendFile = fopen(path, "r"); if (pSendFile == NULL) { printf("open failed "); return 1; } fseek(pSendFile, 0L, SEEK_END); size_t iFileSize = ftell(pSendFile); fseek(pSendFile, 0L, SEEK_SET); printf("begin easy_init "); curl = curl_easy_init(); printf("curl_easy_init success "); if (curl) { curl_easy_setopt(curl, CURLOPT_URL,url); // curl_easy_setopt(curl, CURLOPT_USERPWD, s3.c_str()); curl_easy_setopt(curl, CURLOPT_USERNAME, user); curl_easy_setopt(curl, CURLOPT_PASSWORD, passwd); curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback); curl_easy_setopt(curl, CURLOPT_READDATA, pSendFile); curl_easy_setopt(curl, CURLOPT_FTP_CREATE_MISSING_DIRS, 0); curl_easy_setopt(curl, CURLOPT_UPLOAD, 1); curl_easy_setopt(curl, CURLOPT_INFILESIZE, iFileSize); printf("curl_easy_setopt success "); res = curl_easy_perform(curl); curl_easy_cleanup(curl); if (CURLE_OK != res) { fprintf(stdout, "curl told us %d ", res); } } fclose(pSendFile); curl_global_cleanup(); return 0; } static int download(const char *user, const char *passwd, const char *url, const char *filePath) { CURL *curl = NULL; CURLcode curl_code; // char *s3 = NULL; // asprintf(&s3, "%s:%s", user, passwd); // free(s3); curl = curl_easy_init(); curl_easy_setopt(curl, CURLOPT_URL, url); // curl_easy_setopt(curl, CURLOPT_USERPWD, s3.c_str()); curl_easy_setopt(curl, CURLOPT_USERNAME, user); curl_easy_setopt(curl, CURLOPT_PASSWORD, passwd); FILE *fp = fopen(filePath, "wb+"); if (NULL == fp) { curl_easy_cleanup(curl); printf("fopen failed "); return -1; } curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data); curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp); curl_code = curl_easy_perform(curl); printf("curl_code = %d ",curl_code); if (CURLE_OK != curl_code) { printf("perform failed "); curl_easy_cleanup(curl); fclose(fp); remove(filePath); return -1; } curl_easy_cleanup(curl); fclose(fp); return 0; } int main(int argc, char *argv[]) { gloale_init(); char *serverip = "172.17.6.157"; char *port = "22"; char *serverpath = "/root/2.xml.bak"; char *user = "root"; char *passwd = "root@1234"; char *savepath = "/root/2.xml"; char url[125] = {0}; sprintf(url,"sftp://%s:%s/%s",serverip,port,serverpath); printf("url: %s ", url); // download(user,passwd,url,savepath); upload(user,passwd,url,savepath); return 0; }