diff --git a/example/simple/.cvsignore b/example/simple/.cvsignore index 05fb0a58..cadc2951 100644 --- a/example/simple/.cvsignore +++ b/example/simple/.cvsignore @@ -7,4 +7,5 @@ scp_nonblock sftp sftp_nonblock sftpdir +sftpdir_nonblock ssh2 diff --git a/example/simple/Makefile.am b/example/simple/Makefile.am index f92bd5a2..63a545ce 100644 --- a/example/simple/Makefile.am +++ b/example/simple/Makefile.am @@ -1,7 +1,7 @@ AUTOMAKE_OPTIONS = foreign nostdinc # samples -noinst_PROGRAMS = ssh2 scp_nonblock sftp_nonblock sftp scp sftpdir +noinst_PROGRAMS = ssh2 scp_nonblock sftp_nonblock sftp scp sftpdir sftpdir_nonblock INCLUDES = -I$(top_srcdir)/include LDADD = $(top_builddir)/src/libssh2.la @@ -16,4 +16,6 @@ scp_nonblock_SOURCES = scp_nonblock.c sftp_nonblock_SOURCES = sftp_nonblock.c +sftpdir_nonblock_SOURCES = sftpdir_nonblock.c + scp_SOURCES = scp.c diff --git a/example/simple/sftpdir_nonblock.c b/example/simple/sftpdir_nonblock.c new file mode 100644 index 00000000..4804df42 --- /dev/null +++ b/example/simple/sftpdir_nonblock.c @@ -0,0 +1,218 @@ +/* + * $Id: sftpdir_nonblock.c,v 1.1 2007/04/21 18:08:00 jehousley Exp $ + * + * Sample doing an SFTP directory listing. + * + * The sample code has default values for host name, user name, password and + * path, but you can specify them on the command line like: + * + * "sftpdir 192.168.0.1 user password /tmp/secretdir" + */ + +#include +#include + +#ifndef WIN32 +# include +# include +# include +# include +#else +# include +#endif + +#include +#include +#include +#include +#include + +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; + char *username=(char *)"username"; + char *password=(char *)"password"; + char *sftppath=(char *)"/tmp/secretdir"; + int rc; + LIBSSH2_SFTP *sftp_session; + LIBSSH2_SFTP_HANDLE *sftp_handle; + +#ifdef WIN32 + WSADATA wsadata; + + WSAStartup(WINSOCK_VERSION, &wsadata); +#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]; + } + /* + * 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; + } + + /* We set the socket non-blocking. We do it after the connect just to + simplify the example code. */ +#ifdef F_SETFL + /* FIXME: this can/should be done in a more portable manner */ + rc = fcntl(sock, F_GETFL, 0); + fcntl(sock, F_SETFL, rc | O_NONBLOCK); +#else +#error "add support for setting the socket non-blocking here" +#endif + + /* 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_startup(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_MD5); + printf("Fingerprint: "); + for(i = 0; i < 16; i++) { + printf("%02X ", (unsigned char)fingerprint[i]); + } + printf("\n"); + + if (auth_pw) { + /* We could authenticate via password */ + if (libssh2_userauth_password(session, username, password)) { + printf("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)) { + printf("\tAuthentication by public key failed\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; + } + + libssh2_sftp_set_blocking(sftp_session, 0); + + fprintf(stderr, "libssh2_sftp_opendir()!\n"); + /* Request a dir listing via SFTP */ + sftp_handle = libssh2_sftp_opendir(sftp_session, sftppath); + + if (!sftp_handle) { + fprintf(stderr, "Unable to open dir with SFTP\n"); + goto shutdown; + } + + fprintf(stderr, "libssh2_sftp_opendir() is done, now receive listing!\n"); + do { + char mem[512]; + LIBSSH2_SFTP_ATTRIBUTES attrs; + + /* loop until we fail */ + while ((rc = libssh2_sftp_readdirnb(sftp_handle, mem, sizeof(mem), &attrs)) == LIBSSH2SFTP_EAGAIN) { + ; + } + if(rc > 0) { + /* rc is the length of the file name in the mem + buffer */ + + if(attrs.flags & LIBSSH2_SFTP_ATTR_PERMISSIONS) { + /* this should check what permissions it + is and print the output accordingly */ + printf("--fix----- "); + } else { + printf("---------- "); + } + + if(attrs.flags & LIBSSH2_SFTP_ATTR_UIDGID) { + printf("%4ld %4ld ", attrs.uid, attrs.gid); + } else { + printf(" - - "); + } + + if(attrs.flags & LIBSSH2_SFTP_ATTR_SIZE) { + /* attrs.filesize is an uint64_t according to + the docs but there is no really good and + portable 64bit type for C before C99, and + correspondingly there was no good printf() + option for it... */ + + printf("%8lld ", attrs.filesize); + } + + printf("%s\n", mem); + } + else if (rc == LIBSSH2SFTP_EAGAIN) { + /* blocking */ + fprintf(stderr, "Blocking\n"); + } else { + break; + } + + } while (1); + + libssh2_sftp_closedir(sftp_handle); + libssh2_sftp_shutdown(sftp_session); + + shutdown: + + libssh2_session_disconnect(session, "Normal Shutdown, Thank you for playing"); + libssh2_session_free(session); + +#ifdef WIN32 + Sleep(1000); + closesocket(sock); +#else + sleep(1); + close(sock); +#endif +printf("all done\n"); + return 0; +}