diff options
Diffstat (limited to 'libssh2-sys/libssh2-1.5.0/example/scp.c')
-rw-r--r-- | libssh2-sys/libssh2-1.5.0/example/scp.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/libssh2-sys/libssh2-1.5.0/example/scp.c b/libssh2-sys/libssh2-1.5.0/example/scp.c new file mode 100644 index 0000000..5e7eb99 --- /dev/null +++ b/libssh2-sys/libssh2-1.5.0/example/scp.c @@ -0,0 +1,186 @@ +/* + * Sample showing how to do a simple SCP transfer. + */ + +#include "libssh2_config.h" +#include <libssh2.h> + +#ifdef HAVE_WINSOCK2_H +# include <winsock2.h> +#endif +#ifdef HAVE_SYS_SOCKET_H +# include <sys/socket.h> +#endif +#ifdef HAVE_NETINET_IN_H +# include <netinet/in.h> +#endif +# ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#ifdef HAVE_ARPA_INET_H +# include <arpa/inet.h> +#endif +#ifdef HAVE_SYS_TIME_H +# include <sys/time.h> +#endif + +#include <sys/types.h> +#include <fcntl.h> +#include <errno.h> +#include <stdio.h> +#include <ctype.h> + +int main(int argc, char *argv[]) +{ + unsigned long hostaddr; + int sock, i, auth_pw = 1; + struct sockaddr_in sin; + const char *fingerprint; + LIBSSH2_SESSION *session; + LIBSSH2_CHANNEL *channel; + const char *username="username"; + const char *password="password"; + const char *scppath="/tmp/TEST"; + struct stat fileinfo; + int rc; + off_t got=0; + +#ifdef WIN32 + WSADATA wsadata; + int err; + + err = WSAStartup(MAKEWORD(2,0), &wsadata); + if (err != 0) { + fprintf(stderr, "WSAStartup failed with error: %d\n", err); + return 1; + } +#endif + + if (argc > 1) { + hostaddr = inet_addr(argv[1]); + } else { + hostaddr = htonl(0x7F000001); + } + if (argc > 2) { + username = argv[2]; + } + if (argc > 3) { + password = argv[3]; + } + if (argc > 4) { + scppath = argv[4]; + } + + rc = libssh2_init (0); + if (rc != 0) { + fprintf (stderr, "libssh2 initialization failed (%d)\n", rc); + return 1; + } + + /* Ultra basic "connect to port 22 on localhost" + * Your code is responsible for creating the socket establishing the + * connection + */ + sock = socket(AF_INET, SOCK_STREAM, 0); + + sin.sin_family = AF_INET; + sin.sin_port = htons(22); + sin.sin_addr.s_addr = hostaddr; + if (connect(sock, (struct sockaddr*)(&sin), + sizeof(struct sockaddr_in)) != 0) { + fprintf(stderr, "failed to connect!\n"); + return -1; + } + + /* Create a session instance + */ + session = libssh2_session_init(); + if(!session) + return -1; + + /* ... start it up. This will trade welcome banners, exchange keys, + * and setup crypto, compression, and MAC layers + */ + rc = libssh2_session_handshake(session, sock); + if(rc) { + fprintf(stderr, "Failure establishing SSH session: %d\n", rc); + return -1; + } + + /* At this point we havn't yet authenticated. The first thing to do + * is check the hostkey's fingerprint against our known hosts Your app + * may have it hard coded, may go to a file, may present it to the + * user, that's your call + */ + fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1); + fprintf(stderr, "Fingerprint: "); + for(i = 0; i < 20; i++) { + fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]); + } + fprintf(stderr, "\n"); + + if (auth_pw) { + /* We could authenticate via password */ + if (libssh2_userauth_password(session, username, password)) { + fprintf(stderr, "Authentication by password failed.\n"); + goto shutdown; + } + } else { + /* Or by public key */ + if (libssh2_userauth_publickey_fromfile(session, username, + "/home/username/.ssh/id_rsa.pub", + "/home/username/.ssh/id_rsa", + password)) { + fprintf(stderr, "\tAuthentication by public key failed\n"); + goto shutdown; + } + } + + /* Request a file via SCP */ + channel = libssh2_scp_recv(session, scppath, &fileinfo); + + if (!channel) { + fprintf(stderr, "Unable to open a session: %d\n", + libssh2_session_last_errno(session)); + goto shutdown; + } + + + while(got < fileinfo.st_size) { + char mem[1024]; + int amount=sizeof(mem); + + if((fileinfo.st_size -got) < amount) { + amount = fileinfo.st_size -got; + } + + rc = libssh2_channel_read(channel, mem, amount); + if(rc > 0) { + write(1, mem, rc); + } + else if(rc < 0) { + fprintf(stderr, "libssh2_channel_read() failed: %d\n", rc); + break; + } + got += rc; + } + + libssh2_channel_free(channel); + channel = NULL; + + shutdown: + + libssh2_session_disconnect(session, "Normal Shutdown, Thank you for playing"); + libssh2_session_free(session); + +#ifdef WIN32 + closesocket(sock); +#else + close(sock); +#endif + fprintf(stderr, "all done\n"); + + libssh2_exit(); + + return 0; +} |