/*
- * Copyright (c) 2001 Damien Miller. All rights reserved.
+ * Copyright (c) 2001,2002 Damien Miller. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#include "includes.h"
-RCSID("$OpenBSD: sftp.c,v 1.12 2001/04/05 10:42:54 markus Exp $");
-
-/* XXX: commandline mode */
-/* XXX: copy between two remote hosts (commandline) */
-/* XXX: short-form remote directory listings (like 'ls -C') */
+RCSID("$OpenBSD: sftp.c,v 1.37 2003/07/10 20:05:55 markus Exp $");
#include "buffer.h"
#include "xmalloc.h"
#include "log.h"
#include "pathnames.h"
+#include "misc.h"
#include "sftp.h"
#include "sftp-common.h"
char *__progname;
#endif
-int use_ssh1 = 0;
-char *ssh_program = _PATH_SSH_PROGRAM;
-char *sftp_server = NULL;
FILE* infile;
+size_t copy_buffer_len = 32768;
+size_t num_requests = 16;
+static pid_t sshpid = -1;
+
+extern int showprogress;
-void
-connect_to_server(char **args, int *in, int *out, pid_t *sshpid)
+static void
+killchild(int signo)
+{
+ if (sshpid > 1)
+ kill(sshpid, signo);
+
+ _exit(1);
+}
+
+static void
+connect_to_server(char *path, char **args, int *in, int *out)
{
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];
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)
+ if ((sshpid = fork()) == -1)
fatal("fork: %s", strerror(errno));
- else if (*sshpid == 0) {
+ else if (sshpid == 0) {
if ((dup2(c_in, STDIN_FILENO) == -1) ||
(dup2(c_out, STDOUT_FILENO) == -1)) {
fprintf(stderr, "dup2: %s\n", strerror(errno));
close(*out);
close(c_in);
close(c_out);
- execv(ssh_program, args);
- fprintf(stderr, "exec: %s: %s\n", ssh_program, strerror(errno));
+ execv(path, args);
+ fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
exit(1);
}
+ signal(SIGTERM, killchild);
+ signal(SIGINT, killchild);
+ signal(SIGHUP, killchild);
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 = 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");
+ extern char *__progname;
+
+ fprintf(stderr,
+ "usage: %s [-vC1] [-b batchfile] [-o ssh_option] [-s subsystem | sftp_server]\n"
+ " [-B buffer_size] [-F ssh_config] [-P sftp_server path]\n"
+ " [-R num_requests] [-S program]\n"
+ " [user@]host[:file [file]]\n", __progname);
exit(1);
}
int
main(int argc, char **argv)
{
- int in, out, ch, debug_level, compress_flag;
- pid_t sshpid;
- char *host, *userhost;
- LogLevel ll;
+ int in, out, ch, err;
+ char *host, *userhost, *cp, *file2;
+ int debug_level = 0, sshver = 2;
+ char *file1 = NULL, *sftp_server = NULL;
+ char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = 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, "-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:B:F:P:R:")) != -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;
fatal("%s (%s).", strerror(errno), optarg);
} else
fatal("Filename already specified.");
+ showprogress = 0;
+ break;
+ case 'P':
+ sftp_direct = optarg;
+ break;
+ case 'B':
+ copy_buffer_len = strtol(optarg, &cp, 10);
+ if (copy_buffer_len == 0 || *cp != '\0')
+ fatal("Invalid buffer size \"%s\"", optarg);
+ break;
+ case 'R':
+ num_requests = strtol(optarg, &cp, 10);
+ if (num_requests == 0 || *cp != '\0')
+ fatal("Invalid number of requests \"%s\"",
+ optarg);
break;
case 'h':
default:
}
}
- if (optind == argc || argc > (optind + 1))
- usage();
-
- userhost = argv[optind];
+ log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
- if ((host = strchr(userhost, '@')) == NULL)
- host = userhost;
- else {
- *host = '\0';
- if (!userhost[0]) {
- fprintf(stderr, "Missing username\n");
+ if (sftp_direct == NULL) {
+ if (optind == argc || argc > (optind + 2))
usage();
+
+ userhost = xstrdup(argv[optind]);
+ file2 = argv[optind+1];
+
+ if ((cp = colon(userhost)) != NULL) {
+ *cp++ = '\0';
+ file1 = cp;
}
- make_ssh_args("-l");
- make_ssh_args(userhost);
- host++;
- }
- if (!*host) {
- fprintf(stderr, "Missing hostname\n");
- usage();
- }
+ if ((host = strrchr(userhost, '@')) == NULL)
+ host = userhost;
+ else {
+ *host++ = '\0';
+ if (!userhost[0]) {
+ fprintf(stderr, "Missing username\n");
+ usage();
+ }
+ addargs(&args, "-l%s",userhost);
+ }
- /* 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;
- }
+ host = cleanhostname(host);
+ if (!*host) {
+ fprintf(stderr, "Missing hostname\n");
+ usage();
+ }
- if (compress_flag)
- make_ssh_args("-C");
+ addargs(&args, "-oProtocol %d", sshver);
- log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
+ /* 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);
+ fprintf(stderr, "Connecting to %s...\n", host);
+ connect_to_server(ssh_program, args.list, &in, &out);
+ } else {
+ args.list = NULL;
+ addargs(&args, "sftp-server");
- connect_to_server(make_ssh_args(NULL), &in, &out, &sshpid);
+ fprintf(stderr, "Attaching to %s...\n", sftp_direct);
+ connect_to_server(sftp_direct, args.list, &in, &out);
+ }
- interactive_loop(in, out);
+ err = interactive_loop(in, out, file1, file2);
#if !defined(USE_PIPES)
- shutdown(in, SHUT_RDWR);
- shutdown(out, SHUT_RDWR);
+ shutdown(in, SHUT_RDWR);
+ shutdown(out, SHUT_RDWR);
#endif
close(in);
if (infile != stdin)
fclose(infile);
- if (waitpid(sshpid, NULL, 0) == -1)
- fatal("Couldn't wait for ssh process: %s", strerror(errno));
+ while (waitpid(sshpid, NULL, 0) == -1)
+ if (errno != EINTR)
+ fatal("Couldn't wait for ssh process: %s",
+ strerror(errno));
- exit(0);
+ exit(err == 0 ? 0 : 1);
}
andersk / openssh.git / blobdiff