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authorDamien Miller <djm@mindrot.org>2001-02-04 23:20:18 +1100
committerDamien Miller <djm@mindrot.org>2001-02-04 23:20:18 +1100
commit33804263583e82fb7e6e36477fe63ebd14f15ecb (patch)
tree90d891bedf231b49acdd91f456d58a4142070bd6 /sftp.c
parent45cb2937bc8a74c1e1f7da3b35ad4319d3033baf (diff)
NB: big update - may break stuff. Please test!
- (djm) OpenBSD CVS sync: - markus@cvs.openbsd.org 2001/02/03 03:08:38 [auth-options.c auth-rh-rsa.c auth-rhosts.c auth.c canohost.c] [canohost.h servconf.c servconf.h session.c sshconnect1.c sshd.8] [sshd_config] make ReverseMappingCheck optional in sshd_config; ok djm@,dugsong@ - markus@cvs.openbsd.org 2001/02/03 03:19:51 [ssh.1 sshd.8 sshd_config] Skey is now called ChallengeResponse - markus@cvs.openbsd.org 2001/02/03 03:43:09 [sshd.8] use no-pty option in .ssh/authorized_keys* if you need a 8-bit clean channel. note from Erik.Anggard@cygate.se (pr/1659) - stevesk@cvs.openbsd.org 2001/02/03 10:03:06 [ssh.1] typos; ok markus@ - djm@cvs.openbsd.org 2001/02/04 04:11:56 [scp.1 sftp-server.c ssh.1 sshd.8 sftp-client.c sftp-client.h] [sftp-common.c sftp-common.h sftp-int.c sftp-int.h sftp.1 sftp.c] Basic interactive sftp client; ok theo@ - (djm) Update RPM specs for new sftp binary - (djm) Update several bits for new optional reverse lookup stuff. I think I got them all.
Diffstat (limited to 'sftp.c')
-rw-r--r--sftp.c222
1 files changed, 222 insertions, 0 deletions
diff --git a/sftp.c b/sftp.c
new file mode 100644
index 00000000..0dca12d8
--- /dev/null
+++ b/sftp.c
@@ -0,0 +1,222 @@
+/*
+ * Copyright (c) 2001 Damien Miller. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "includes.h"
+
+RCSID("$OpenBSD: sftp.c,v 1.1 2001/02/04 11:11:54 djm Exp $");
+
+/* XXX: commandline mode */
+/* XXX: copy between two remote hosts (commandline) */
+/* XXX: short-form remote directory listings (like 'ls -C') */
+
+#include "buffer.h"
+#include "xmalloc.h"
+#include "log.h"
+#include "pathnames.h"
+
+#include "sftp.h"
+#include "sftp-common.h"
+#include "sftp-client.h"
+#include "sftp-int.h"
+
+void
+connect_to_server(char **args, int *in, int *out, pid_t *sshpid)
+{
+ int c_in, c_out;
+#ifdef USE_PIPES
+ int pin[2], pout[2];
+ if ((pipe(pin) == -1) || (pipe(pout) == -1))
+ fatal("pipe: %s", strerror(errno));
+ *in = pin[0];
+ *out = pout[1];
+ c_in = pout[0];
+ c_out = pin[1];
+#else /* USE_PIPES */
+ int inout[2];
+ if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
+ fatal("socketpair: %s", strerror(errno));
+ *in = *out = inout[0];
+ c_in = c_out = inout[1];
+#endif /* USE_PIPES */
+
+ if ((*sshpid = fork()) == -1)
+ fatal("fork: %s", strerror(errno));
+ else if (*sshpid == 0) {
+ if ((dup2(c_in, STDIN_FILENO) == -1) ||
+ (dup2(c_out, STDOUT_FILENO) == -1)) {
+ fprintf(stderr, "dup2: %s\n", strerror(errno));
+ exit(1);
+ }
+ close(*in);
+ close(*out);
+ close(c_in);
+ close(c_out);
+ execv(_PATH_SSH_PROGRAM, args);
+ fprintf(stderr, "exec: %s", strerror(errno));
+ exit(1);
+ }
+
+ close(c_in);
+ close(c_out);
+}
+
+char **
+make_ssh_args(char *add_arg)
+{
+ static char **args = NULL;
+ static int nargs = 0;
+ char debug_buf[4096];
+ int i;
+
+ /* Init args array */
+ if (args == NULL) {
+ nargs = 4;
+ i = 0;
+ args = xmalloc(sizeof(*args) * nargs);
+ args[i++] = "ssh";
+ args[i++] = "-oProtocol=2";
+ args[i++] = "-s";
+ args[i++] = NULL;
+ }
+
+ /* If asked to add args, then do so and return */
+ if (add_arg) {
+ i = nargs++ - 1;
+ args = xrealloc(args, sizeof(*args) * nargs);
+ args[i++] = add_arg;
+ args[i++] = NULL;
+ return(NULL);
+ }
+
+ /* Otherwise finish up and return the arg array */
+ make_ssh_args("sftp");
+
+ /* XXX: overflow - doesn't grow debug_buf */
+ debug_buf[0] = '\0';
+ for(i = 0; args[i]; i++) {
+ if (i)
+ strlcat(debug_buf, " ", sizeof(debug_buf));
+
+ strlcat(debug_buf, args[i], sizeof(debug_buf));
+ }
+ debug("SSH args \"%s\"", debug_buf);
+
+ return(args);
+}
+
+void
+usage(void)
+{
+ fprintf(stderr, "usage: sftp [-vC] [-osshopt=value] [user@]host\n");
+ exit(1);
+}
+
+int
+main(int argc, char **argv)
+{
+ int in, out, i, debug_level, compress_flag;
+ pid_t sshpid;
+ char *cp;
+ LogLevel ll;
+
+ debug_level = compress_flag = 0;
+ for(i = 1; i < argc && argv[i][0] == '-'; i++) {
+ if (!strcmp(argv[i], "-v"))
+ debug_level = MIN(3, debug_level + 1);
+ else if (!strcmp(argv[i], "-C"))
+ compress_flag = 1;
+ else if (!strncmp(argv[i], "-o", 2)) {
+ make_ssh_args(argv[i]);
+ } else {
+ fprintf(stderr, "Unknown option \"%s\"\n", argv[i]);
+ usage();
+ }
+ }
+
+ if (i == argc || argc > (i + 1))
+ usage();
+
+ if ((cp = strchr(argv[i], '@')) == NULL)
+ cp = argv[i];
+ else {
+ *cp = '\0';
+ if (!argv[i][0]) {
+ fprintf(stderr, "Missing username\n");
+ usage();
+ }
+ make_ssh_args("-l");
+ make_ssh_args(argv[i]);
+ cp++;
+ }
+
+ if (!*cp) {
+ fprintf(stderr, "Missing hostname\n");
+ usage();
+ }
+
+ /* Set up logging and debug '-d' arguments to ssh */
+ ll = SYSLOG_LEVEL_INFO;
+ switch (debug_level) {
+ case 1:
+ ll = SYSLOG_LEVEL_DEBUG1;
+ make_ssh_args("-v");
+ break;
+ case 2:
+ ll = SYSLOG_LEVEL_DEBUG2;
+ make_ssh_args("-v");
+ make_ssh_args("-v");
+ break;
+ case 3:
+ ll = SYSLOG_LEVEL_DEBUG3;
+ make_ssh_args("-v");
+ make_ssh_args("-v");
+ make_ssh_args("-v");
+ break;
+ }
+
+ if (compress_flag)
+ make_ssh_args("-C");
+
+ log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
+
+ make_ssh_args(cp);
+
+ fprintf(stderr, "Connecting to %s...\n", cp);
+
+ connect_to_server(make_ssh_args(NULL), &in, &out, &sshpid);
+
+ do_init(in, out);
+
+ interactive_loop(in, out);
+
+ close(in);
+ close(out);
+
+ if (kill(sshpid, SIGHUP) == -1)
+ fatal("Couldn't terminate ssh process: %s", strerror(errno));
+
+ /* XXX: wait? */
+
+ exit(0);
+}