]> andersk Git - openssh.git/blobdiff - sftp.c
- stevesk@cvs.openbsd.org 2001/09/19 19:24:19
[openssh.git] / sftp.c
diff --git a/sftp.c b/sftp.c
index 7849d9491af5e8d5a8d08a3c4b46d72ee81f0930..06110f9af2fda203034d8647cacbe64b0bd604b7 100644 (file)
--- a/sftp.c
+++ b/sftp.c
 
 #include "includes.h"
 
-RCSID("$OpenBSD: sftp.c,v 1.13 2001/04/08 20:52:55 deraadt Exp $");
+RCSID("$OpenBSD: sftp.c,v 1.21 2001/09/19 19:24:19 stevesk 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 "misc.h"
 
 #include "sftp.h"
 #include "sftp-common.h"
@@ -46,12 +46,10 @@ extern char *__progname;
 char *__progname;
 #endif
 
-int use_ssh1 = 0;
 char *ssh_program = _PATH_SSH_PROGRAM;
-char *sftp_server = NULL;
 FILE* infile;
 
-void
+static void
 connect_to_server(char **args, int *in, int *out, pid_t *sshpid)
 {
        int c_in, c_out;
@@ -92,93 +90,56 @@ connect_to_server(char **args, int *in, int *out, pid_t *sshpid)
        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 = 2;
-               i = 0;
-               args = xmalloc(sizeof(*args) * nargs);
-               args[i++] = "ssh";
-               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);
-       }
-
-       /* no subsystem if the server-spec contains a '/' */
-       if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
-               make_ssh_args("-s");
-       make_ssh_args("-oForwardX11=no");
-       make_ssh_args("-oForwardAgent=no");
-       make_ssh_args(use_ssh1 ? "-oProtocol=1" : "-oProtocol=2");
-
-       /* Otherwise finish up and return the arg array */
-       if (sftp_server != NULL)
-               make_ssh_args(sftp_server);
-       else
-               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
+static void
 usage(void)
 {
-       fprintf(stderr, "usage: sftp [-1vC] [-b batchfile] [-osshopt=value] [user@]host\n");
+       fprintf(stderr,
+           "usage: sftp [-1Cv] [-b batchfile] [-F config] [-o option] [-s subsystem|path]\n"
+           "            [-S program] [user@]host[:file [file]]\n");
        exit(1);
 }
 
 int
 main(int argc, char **argv)
 {
-       int in, out, ch, debug_level, compress_flag;
+       int in, out, ch;
        pid_t sshpid;
-       char *host, *userhost;
-       LogLevel ll;
+       char *host, *userhost, *cp, *file2;
+       int debug_level = 0, sshver = 2;
+       char *file1 = NULL, *sftp_server = NULL;
+       LogLevel ll = SYSLOG_LEVEL_INFO;
+       arglist args;
        extern int optind;
        extern char *optarg;
 
        __progname = get_progname(argv[0]);
-       infile = stdin;         /* Read from STDIN unless changed by -b */
-       debug_level = compress_flag = 0;
+       args.list = NULL;
+       addargs(&args, "ssh");         /* overwritten with ssh_program */
+       addargs(&args, "-oFallBackToRsh no");
+       addargs(&args, "-oForwardX11 no");
+       addargs(&args, "-oForwardAgent no");
+       addargs(&args, "-oClearAllForwardings yes");
+       ll = SYSLOG_LEVEL_INFO;
+       infile = stdin;         /* Read from STDIN unless changed by -b */
 
-       while ((ch = getopt(argc, argv, "1hvCo:s:S:b:")) != -1) {
+       while ((ch = getopt(argc, argv, "1hvCo:s:S:b:F:")) != -1) {
                switch (ch) {
                case 'C':
-                       compress_flag = 1;
+                       addargs(&args, "-C");
                        break;
                case 'v':
-                       debug_level = MIN(3, debug_level + 1);
+                       if (debug_level < 3) {
+                               addargs(&args, "-v");
+                               ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
+                       }
+                       debug_level++;
                        break;
+               case 'F':
                case 'o':
-                       make_ssh_args("-o");
-                       make_ssh_args(optarg);
+                       addargs(&args, "-%c%s", ch, optarg);
                        break;
                case '1':
-                       use_ssh1 = 1;
+                       sshver = 1;
                        if (sftp_server == NULL)
                                sftp_server = _PATH_SFTP_SERVER;
                        break;
@@ -202,61 +163,50 @@ main(int argc, char **argv)
                }
        }
 
-       if (optind == argc || argc > (optind + 1))
+       if (optind == argc || argc > (optind + 2))
                usage();
 
        userhost = xstrdup(argv[optind]);
+       file2 = argv[optind+1];
+
+       if ((cp = colon(userhost)) != NULL) {
+               *cp++ = '\0';
+               file1 = cp;
+       }
 
        if ((host = strchr(userhost, '@')) == NULL)
                host = userhost;
        else {
-               *host = '\0';
+               *host++ = '\0';
                if (!userhost[0]) {
                        fprintf(stderr, "Missing username\n");
                        usage();
                }
-               make_ssh_args("-l");
-               make_ssh_args(userhost);
-               host++;
+               addargs(&args, "-l%s",userhost);
        }
 
+       host = cleanhostname(host);
        if (!*host) {
                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);
+       addargs(&args, "-oProtocol %d", sshver);
+
+       /* no subsystem if the server-spec contains a '/' */
+       if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) 
+               addargs(&args, "-s");
 
-       make_ssh_args(host);
+       addargs(&args, "%s", host);
+       addargs(&args, "%s", (sftp_server != NULL ? sftp_server : "sftp"));
+       args.list[0] = ssh_program;
 
        fprintf(stderr, "Connecting to %s...\n", host);
 
-       connect_to_server(make_ssh_args(NULL), &in, &out, &sshpid);
+       connect_to_server(args.list, &in, &out, &sshpid);
 
-       interactive_loop(in, out);
+       interactive_loop(in, out, file1, file2);
 
 #if !defined(USE_PIPES)
         shutdown(in, SHUT_RDWR);
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