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Diffstat (limited to 'libssh2-sys/libssh2-1.5.0/example/sftp.c')
-rw-r--r--libssh2-sys/libssh2-1.5.0/example/sftp.c290
1 files changed, 290 insertions, 0 deletions
diff --git a/libssh2-sys/libssh2-1.5.0/example/sftp.c b/libssh2-sys/libssh2-1.5.0/example/sftp.c
new file mode 100644
index 0000000..0feb534
--- /dev/null
+++ b/libssh2-sys/libssh2-1.5.0/example/sftp.c
@@ -0,0 +1,290 @@
+/*
+ * Sample showing how to do SFTP transfers.
+ *
+ * The sample code has default values for host name, user name, password
+ * and path to copy, but you can specify them on the command line like:
+ *
+ * "sftp 192.168.0.1 user password /tmp/secrets -p|-i|-k"
+ */
+
+#include "libssh2_config.h"
+#include <libssh2.h>
+#include <libssh2_sftp.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>
+
+
+const char *keyfile1="~/.ssh/id_rsa.pub";
+const char *keyfile2="~/.ssh/id_rsa";
+const char *username="username";
+const char *password="password";
+const char *sftppath="/tmp/TEST";
+
+
+static void kbd_callback(const char *name, int name_len,
+ const char *instruction, int instruction_len, int num_prompts,
+ const LIBSSH2_USERAUTH_KBDINT_PROMPT *prompts,
+ LIBSSH2_USERAUTH_KBDINT_RESPONSE *responses,
+ void **abstract)
+{
+ int i;
+ size_t n;
+ char buf[1024];
+ (void)abstract;
+
+ fprintf(stderr, "Performing keyboard-interactive authentication.\n");
+
+ fprintf(stderr, "Authentication name: '");
+ fwrite(name, 1, name_len, stderr);
+ fprintf(stderr, "'\n");
+
+ fprintf(stderr, "Authentication instruction: '");
+ fwrite(instruction, 1, instruction_len, stderr);
+ fprintf(stderr, "'\n");
+
+ fprintf(stderr, "Number of prompts: %d\n\n", num_prompts);
+
+ for (i = 0; i < num_prompts; i++) {
+ fprintf(stderr, "Prompt %d from server: '", i);
+ fwrite(prompts[i].text, 1, prompts[i].length, stderr);
+ fprintf(stderr, "'\n");
+
+ fprintf(stderr, "Please type response: ");
+ fgets(buf, sizeof(buf), stdin);
+ n = strlen(buf);
+ while (n > 0 && strchr("\r\n", buf[n - 1]))
+ n--;
+ buf[n] = 0;
+
+ responses[i].text = strdup(buf);
+ responses[i].length = n;
+
+ fprintf(stderr, "Response %d from user is '", i);
+ fwrite(responses[i].text, 1, responses[i].length, stderr);
+ fprintf(stderr, "'\n\n");
+ }
+
+ fprintf(stderr,
+ "Done. Sending keyboard-interactive responses to server now.\n");
+}
+
+
+int main(int argc, char *argv[])
+{
+ unsigned long hostaddr;
+ int sock, i, auth_pw = 0;
+ struct sockaddr_in sin;
+ const char *fingerprint;
+ char *userauthlist;
+ LIBSSH2_SESSION *session;
+ int rc;
+ LIBSSH2_SFTP *sftp_session;
+ LIBSSH2_SFTP_HANDLE *sftp_handle;
+
+#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) {
+ sftppath = argv[4];
+ }
+
+ rc = libssh2_init (0);
+ if (rc != 0) {
+ fprintf(stderr, "libssh2 initialization failed (%d)\n", rc);
+ return 1;
+ }
+
+ /*
+ * The application code is responsible for creating the socket
+ * and 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;
+
+ /* Since we have set non-blocking, tell libssh2 we are blocking */
+ libssh2_session_set_blocking(session, 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");
+
+ /* check what authentication methods are available */
+ userauthlist = libssh2_userauth_list(session, username, strlen(username));
+ fprintf(stderr, "Authentication methods: %s\n", userauthlist);
+ if (strstr(userauthlist, "password") != NULL) {
+ auth_pw |= 1;
+ }
+ if (strstr(userauthlist, "keyboard-interactive") != NULL) {
+ auth_pw |= 2;
+ }
+ if (strstr(userauthlist, "publickey") != NULL) {
+ auth_pw |= 4;
+ }
+
+ /* if we got an 4. argument we set this option if supported */
+ if(argc > 5) {
+ if ((auth_pw & 1) && !strcasecmp(argv[5], "-p")) {
+ auth_pw = 1;
+ }
+ if ((auth_pw & 2) && !strcasecmp(argv[5], "-i")) {
+ auth_pw = 2;
+ }
+ if ((auth_pw & 4) && !strcasecmp(argv[5], "-k")) {
+ auth_pw = 4;
+ }
+ }
+
+ if (auth_pw & 1) {
+ /* We could authenticate via password */
+ if (libssh2_userauth_password(session, username, password)) {
+ fprintf(stderr, "Authentication by password failed.\n");
+ goto shutdown;
+ }
+ } else if (auth_pw & 2) {
+ /* Or via keyboard-interactive */
+ if (libssh2_userauth_keyboard_interactive(session, username, &kbd_callback) ) {
+ fprintf(stderr,
+ "\tAuthentication by keyboard-interactive failed!\n");
+ goto shutdown;
+ } else {
+ fprintf(stderr,
+ "\tAuthentication by keyboard-interactive succeeded.\n");
+ }
+ } else if (auth_pw & 4) {
+ /* Or by public key */
+ if (libssh2_userauth_publickey_fromfile(session, username, keyfile1, keyfile2, password)) {
+ fprintf(stderr, "\tAuthentication by public key failed!\n");
+ goto shutdown;
+ } else {
+ fprintf(stderr, "\tAuthentication by public key succeeded.\n");
+ }
+ } else {
+ fprintf(stderr, "No supported authentication methods found!\n");
+ goto shutdown;
+ }
+
+ fprintf(stderr, "libssh2_sftp_init()!\n");
+ sftp_session = libssh2_sftp_init(session);
+
+ if (!sftp_session) {
+ fprintf(stderr, "Unable to init SFTP session\n");
+ goto shutdown;
+ }
+
+ fprintf(stderr, "libssh2_sftp_open()!\n");
+ /* Request a file via SFTP */
+ sftp_handle =
+ libssh2_sftp_open(sftp_session, sftppath, LIBSSH2_FXF_READ, 0);
+
+ if (!sftp_handle) {
+ fprintf(stderr, "Unable to open file with SFTP: %ld\n",
+ libssh2_sftp_last_error(sftp_session));
+ goto shutdown;
+ }
+ fprintf(stderr, "libssh2_sftp_open() is done, now receive data!\n");
+ do {
+ char mem[1024];
+
+ /* loop until we fail */
+ fprintf(stderr, "libssh2_sftp_read()!\n");
+ rc = libssh2_sftp_read(sftp_handle, mem, sizeof(mem));
+ if (rc > 0) {
+ write(1, mem, rc);
+ } else {
+ break;
+ }
+ } while (1);
+
+ libssh2_sftp_close(sftp_handle);
+ libssh2_sftp_shutdown(sftp_session);
+
+ 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;
+}
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