*/
static int psftp_connect(char *userhost, char *user, int portnumber);
-static void do_sftp_init(void);
+static int do_sftp_init(void);
/* ----------------------------------------------------------------------
* sftp client state.
return 1;
}
+static int sftp_cmd_lcd(struct sftp_command *cmd)
+{
+ char *currdir;
+ int len;
+
+ if (cmd->nwords < 2) {
+ printf("lcd: expects a local directory name\n");
+ return 0;
+ }
+
+ if (!SetCurrentDirectory(cmd->words[1])) {
+ LPVOID message;
+ int i;
+ FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL, GetLastError(),
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ (LPTSTR)&message, 0, NULL);
+ i = strcspn((char *)message, "\n");
+ printf("lcd: unable to change directory: %.*s\n", i, (LPCTSTR)message);
+ LocalFree(message);
+ return 0;
+ }
+
+ currdir = smalloc(256);
+ len = GetCurrentDirectory(256, currdir);
+ if (len > 256)
+ currdir = srealloc(currdir, len);
+ GetCurrentDirectory(len, currdir);
+ printf("New local directory is %s\n", currdir);
+ sfree(currdir);
+
+ return 1;
+}
+
+static int sftp_cmd_lpwd(struct sftp_command *cmd)
+{
+ char *currdir;
+ int len;
+
+ currdir = smalloc(256);
+ len = GetCurrentDirectory(256, currdir);
+ if (len > 256)
+ currdir = srealloc(currdir, len);
+ GetCurrentDirectory(len, currdir);
+ printf("Current local directory is %s\n", currdir);
+ sfree(currdir);
+
+ return 1;
+}
+
+static int sftp_cmd_pling(struct sftp_command *cmd)
+{
+ int exitcode;
+
+ exitcode = system(cmd->words[1]);
+ return (exitcode == 0);
+}
+
static int sftp_cmd_help(struct sftp_command *cmd);
static struct sftp_cmd_lookup {
* `shorthelp' is the name of a primary command, which
* contains the help that should double up for this command.
*/
+ int listed; /* do we list this in primary help? */
char *shorthelp;
char *longhelp;
int (*obey) (struct sftp_command *);
* in ASCII order.
*/
{
- "bye", "finish your SFTP session",
+ "!", TRUE, "run a local Windows command",
+ "<command>\n"
+ " Runs a local Windows command. For example, \"!del myfile\".\n",
+ sftp_cmd_pling
+ },
+ {
+ "bye", TRUE, "finish your SFTP session",
"\n"
" Terminates your SFTP session and quits the PSFTP program.\n",
sftp_cmd_quit
},
{
- "cd", "change your remote working directory",
+ "cd", TRUE, "change your remote working directory",
" [ <New working directory> ]\n"
" Change the remote working directory for your SFTP session.\n"
" If a new working directory is not supplied, you will be\n"
sftp_cmd_cd
},
{
- "chmod", "change file permissions and modes",
+ "chmod", TRUE, "change file permissions and modes",
" ( <octal-digits> | <modifiers> ) <filename>\n"
" Change the file permissions on a file or directory.\n"
" <octal-digits> can be any octal Unix permission specifier.\n"
sftp_cmd_chmod
},
{
- "del", "delete a file",
+ "del", TRUE, "delete a file",
" <filename>\n"
" Delete a file.\n",
sftp_cmd_rm
},
{
- "delete", "delete a file",
- "\n"
- " Delete a file.\n",
- sftp_cmd_rm
+ "delete", FALSE, "del", NULL, sftp_cmd_rm
},
{
- "dir", "list contents of a remote directory",
+ "dir", TRUE, "list contents of a remote directory",
" [ <directory-name> ]\n"
" List the contents of a specified directory on the server.\n"
" If <directory-name> is not given, the current working directory\n"
sftp_cmd_ls
},
{
- "exit", "bye", NULL, sftp_cmd_quit
+ "exit", TRUE, "bye", NULL, sftp_cmd_quit
},
{
- "get", "download a file from the server to your local machine",
+ "get", TRUE, "download a file from the server to your local machine",
" <filename> [ <local-filename> ]\n"
" Downloads a file on the server and stores it locally under\n"
" the same name, or under a different one if you supply the\n"
sftp_cmd_get
},
{
- "help", "give help",
+ "help", TRUE, "give help",
" [ <command> [ <command> ... ] ]\n"
" Give general help if no commands are specified.\n"
" If one or more commands are specified, give specific help on\n"
sftp_cmd_help
},
{
- "ls", "dir", NULL,
+ "lcd", TRUE, "change local working directory",
+ " <local-directory-name>\n"
+ " Change the local working directory of the PSFTP program (the\n"
+ " default location where the \"get\" command will save files).\n",
+ sftp_cmd_lcd
+ },
+ {
+ "lpwd", TRUE, "print local working directory",
+ "\n"
+ " Print the local working directory of the PSFTP program (the\n"
+ " default location where the \"get\" command will save files).\n",
+ sftp_cmd_lpwd
+ },
+ {
+ "ls", TRUE, "dir", NULL,
sftp_cmd_ls
},
{
- "mkdir", "create a directory on the remote server",
+ "mkdir", TRUE, "create a directory on the remote server",
" <directory-name>\n"
" Creates a directory with the given name on the server.\n",
sftp_cmd_mkdir
},
{
- "mv", "move or rename a file on the remote server",
+ "mv", TRUE, "move or rename a file on the remote server",
" <source-filename> <destination-filename>\n"
" Moves or renames the file <source-filename> on the server,\n"
" so that it is accessible under the name <destination-filename>.\n",
sftp_cmd_mv
},
{
- "put", "upload a file from your local machine to the server",
- " <filename> [ <remote-filename> ]\n"
- " Uploads a file to the server and stores it there under\n"
- " the same name, or under a different one if you supply the\n"
- " argument <remote-filename>.\n",
- sftp_cmd_put
- },
- {
- "open", "connect to a host",
+ "open", TRUE, "connect to a host",
" [<user>@]<hostname>\n"
" Establishes an SFTP connection to a given host. Only usable\n"
" when you did not already specify a host name on the command\n"
sftp_cmd_open
},
{
- "pwd", "print your remote working directory",
+ "put", TRUE, "upload a file from your local machine to the server",
+ " <filename> [ <remote-filename> ]\n"
+ " Uploads a file to the server and stores it there under\n"
+ " the same name, or under a different one if you supply the\n"
+ " argument <remote-filename>.\n",
+ sftp_cmd_put
+ },
+ {
+ "pwd", TRUE, "print your remote working directory",
"\n"
" Print the current remote working directory for your SFTP session.\n",
sftp_cmd_pwd
},
{
- "quit", "bye", NULL,
+ "quit", TRUE, "bye", NULL,
sftp_cmd_quit
},
{
- "reget", "continue downloading a file",
+ "reget", TRUE, "continue downloading a file",
" <filename> [ <local-filename> ]\n"
" Works exactly like the \"get\" command, but the local file\n"
" must already exist. The download will begin at the end of the\n"
sftp_cmd_reget
},
{
- "ren", "mv", NULL,
+ "ren", TRUE, "mv", NULL,
sftp_cmd_mv
},
{
- "rename", "mv", NULL,
+ "rename", FALSE, "mv", NULL,
sftp_cmd_mv
},
{
- "reput", "continue uploading a file",
+ "reput", TRUE, "continue uploading a file",
" <filename> [ <remote-filename> ]\n"
" Works exactly like the \"put\" command, but the remote file\n"
" must already exist. The upload will begin at the end of the\n"
sftp_cmd_reput
},
{
- "rm", "del", NULL,
+ "rm", TRUE, "del", NULL,
sftp_cmd_rm
},
{
- "rmdir", "remove a directory on the remote server",
+ "rmdir", TRUE, "remove a directory on the remote server",
" <directory-name>\n"
" Removes the directory with the given name on the server.\n"
" The directory will not be removed unless it is empty.\n",
int maxlen;
maxlen = 0;
for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) {
- int len = strlen(sftp_lookup[i].name);
+ int len;
+ if (!sftp_lookup[i].listed)
+ continue;
+ len = strlen(sftp_lookup[i].name);
if (maxlen < len)
maxlen = len;
}
for (i = 0; i < sizeof(sftp_lookup) / sizeof(*sftp_lookup); i++) {
const struct sftp_cmd_lookup *lookup;
+ if (!sftp_lookup[i].listed)
+ continue;
lookup = &sftp_lookup[i];
printf("%-*s", maxlen+2, lookup->name);
if (lookup->longhelp == NULL)
if (!ret || (linelen == 0 && line[0] == '\0')) {
cmd->obey = sftp_cmd_quit;
- printf("quit\n");
+ if ((mode == 0) || (modeflags & 1))
+ printf("quit\n");
return cmd; /* eof */
}
len = linelen + strlen(line + linelen);
printf("%s\n", line);
}
- /*
- * Parse the command line into words. The syntax is:
- * - double quotes are removed, but cause spaces within to be
- * treated as non-separating.
- * - a double-doublequote pair is a literal double quote, inside
- * _or_ outside quotes. Like this:
- *
- * firstword "second word" "this has ""quotes"" in" sodoes""this""
- *
- * becomes
- *
- * >firstword<
- * >second word<
- * >this has "quotes" in<
- * >sodoes"this"<
- */
p = line;
- while (*p) {
- /* skip whitespace */
- while (*p && (*p == ' ' || *p == '\t'))
- p++;
- /* mark start of word */
- q = r = p; /* q sits at start, r writes word */
- quoting = 0;
+ while (*p && (*p == ' ' || *p == '\t'))
+ p++;
+
+ if (*p == '!') {
+ /*
+ * Special case: the ! command. This is always parsed as
+ * exactly two words: one containing the !, and the second
+ * containing everything else on the line.
+ */
+ cmd->nwords = cmd->wordssize = 2;
+ cmd->words = srealloc(cmd->words, cmd->wordssize * sizeof(char *));
+ cmd->words[0] = "!";
+ cmd->words[1] = p+1;
+ } else {
+
+ /*
+ * Parse the command line into words. The syntax is:
+ * - double quotes are removed, but cause spaces within to be
+ * treated as non-separating.
+ * - a double-doublequote pair is a literal double quote, inside
+ * _or_ outside quotes. Like this:
+ *
+ * firstword "second word" "this has ""quotes"" in" and""this""
+ *
+ * becomes
+ *
+ * >firstword<
+ * >second word<
+ * >this has "quotes" in<
+ * >and"this"<
+ */
while (*p) {
- if (!quoting && (*p == ' ' || *p == '\t'))
- break; /* reached end of word */
- else if (*p == '"' && p[1] == '"')
- p += 2, *r++ = '"'; /* a literal quote */
- else if (*p == '"')
- p++, quoting = !quoting;
- else
- *r++ = *p++;
- }
- if (*p)
- p++; /* skip over the whitespace */
- *r = '\0';
- if (cmd->nwords >= cmd->wordssize) {
- cmd->wordssize = cmd->nwords + 16;
- cmd->words =
- srealloc(cmd->words, cmd->wordssize * sizeof(char *));
+ /* skip whitespace */
+ while (*p && (*p == ' ' || *p == '\t'))
+ p++;
+ /* mark start of word */
+ q = r = p; /* q sits at start, r writes word */
+ quoting = 0;
+ while (*p) {
+ if (!quoting && (*p == ' ' || *p == '\t'))
+ break; /* reached end of word */
+ else if (*p == '"' && p[1] == '"')
+ p += 2, *r++ = '"'; /* a literal quote */
+ else if (*p == '"')
+ p++, quoting = !quoting;
+ else
+ *r++ = *p++;
+ }
+ if (*p)
+ p++; /* skip over the whitespace */
+ *r = '\0';
+ if (cmd->nwords >= cmd->wordssize) {
+ cmd->wordssize = cmd->nwords + 16;
+ cmd->words =
+ srealloc(cmd->words, cmd->wordssize * sizeof(char *));
+ }
+ cmd->words[cmd->nwords++] = q;
}
- cmd->words[cmd->nwords++] = q;
}
/*
return cmd;
}
-static void do_sftp_init(void)
+static int do_sftp_init(void)
{
/*
* Do protocol initialisation.
if (!fxp_init()) {
fprintf(stderr,
"Fatal: unable to initialise SFTP: %s\n", fxp_error());
- return;
+ return 1; /* failure */
}
/*
printf("Remote working directory is %s\n", homedir);
}
pwd = dupstr(homedir);
+ return 0;
}
void do_sftp(int mode, int modeflags, char *batchfile)
static int verbose = 0;
-void verify_ssh_host_key(char *host, int port, char *keytype,
- char *keystr, char *fingerprint)
-{
- int ret;
- HANDLE hin;
- DWORD savemode, i;
-
- static const char absentmsg[] =
- "The server's host key is not cached in the registry. You\n"
- "have no guarantee that the server is the computer you\n"
- "think it is.\n"
- "The server's key fingerprint is:\n"
- "%s\n"
- "If you trust this host, enter \"y\" to add the key to\n"
- "PuTTY's cache and carry on connecting.\n"
- "If you want to carry on connecting just once, without\n"
- "adding the key to the cache, enter \"n\".\n"
- "If you do not trust this host, press Return to abandon the\n"
- "connection.\n"
- "Store key in cache? (y/n) ";
-
- static const char wrongmsg[] =
- "WARNING - POTENTIAL SECURITY BREACH!\n"
- "The server's host key does not match the one PuTTY has\n"
- "cached in the registry. This means that either the\n"
- "server administrator has changed the host key, or you\n"
- "have actually connected to another computer pretending\n"
- "to be the server.\n"
- "The new key fingerprint is:\n"
- "%s\n"
- "If you were expecting this change and trust the new key,\n"
- "enter \"y\" to update PuTTY's cache and continue connecting.\n"
- "If you want to carry on connecting but without updating\n"
- "the cache, enter \"n\".\n"
- "If you want to abandon the connection completely, press\n"
- "Return to cancel. Pressing Return is the ONLY guaranteed\n"
- "safe choice.\n"
- "Update cached key? (y/n, Return cancels connection) ";
-
- static const char abandoned[] = "Connection abandoned.\n";
-
- char line[32];
-
- /*
- * Verify the key against the registry.
- */
- ret = verify_host_key(host, port, keytype, keystr);
-
- if (ret == 0) /* success - key matched OK */
- return;
-
- if (ret == 2) { /* key was different */
- fprintf(stderr, wrongmsg, fingerprint);
- fflush(stderr);
- }
- if (ret == 1) { /* key was absent */
- fprintf(stderr, absentmsg, fingerprint);
- fflush(stderr);
- }
-
- hin = GetStdHandle(STD_INPUT_HANDLE);
- GetConsoleMode(hin, &savemode);
- SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT |
- ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT));
- ReadFile(hin, line, sizeof(line) - 1, &i, NULL);
- SetConsoleMode(hin, savemode);
-
- if (line[0] != '\0' && line[0] != '\r' && line[0] != '\n') {
- if (line[0] == 'y' || line[0] == 'Y')
- store_host_key(host, port, keytype, keystr);
- } else {
- fprintf(stderr, abandoned);
- exit(0);
- }
-}
-
-/*
- * Ask whether the selected cipher is acceptable (since it was
- * below the configured 'warn' threshold).
- * cs: 0 = both ways, 1 = client->server, 2 = server->client
- */
-void askcipher(char *ciphername, int cs)
-{
- HANDLE hin;
- DWORD savemode, i;
-
- static const char msg[] =
- "The first %scipher supported by the server is\n"
- "%s, which is below the configured warning threshold.\n"
- "Continue with connection? (y/n) ";
- static const char abandoned[] = "Connection abandoned.\n";
-
- char line[32];
-
- fprintf(stderr, msg,
- (cs == 0) ? "" :
- (cs == 1) ? "client-to-server " :
- "server-to-client ",
- ciphername);
- fflush(stderr);
-
- hin = GetStdHandle(STD_INPUT_HANDLE);
- GetConsoleMode(hin, &savemode);
- SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT |
- ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT));
- ReadFile(hin, line, sizeof(line) - 1, &i, NULL);
- SetConsoleMode(hin, savemode);
-
- if (line[0] == 'y' || line[0] == 'Y') {
- return;
- } else {
- fprintf(stderr, abandoned);
- exit(0);
- }
-}
-
-/*
- * Warn about the obsolescent key file format.
- */
-void old_keyfile_warning(void)
-{
- static const char message[] =
- "You are loading an SSH 2 private key which has an\n"
- "old version of the file format. This means your key\n"
- "file is not fully tamperproof. Future versions of\n"
- "PuTTY may stop supporting this private key format,\n"
- "so we recommend you convert your key to the new\n"
- "format.\n"
- "\n"
- "Once the key is loaded into PuTTYgen, you can perform\n"
- "this conversion simply by saving it again.\n";
-
- fputs(message, stderr);
-}
-
/*
* Print an error message and perform a fatal exit.
*/
vsprintf(str + strlen(str), fmt, ap);
va_end(ap);
strcat(str, "\n");
- fputs(stderr, str);
+ fputs(str, stderr);
- exit(1);
+ cleanup_exit(1);
}
void connection_fatal(char *fmt, ...)
{
vsprintf(str + strlen(str), fmt, ap);
va_end(ap);
strcat(str, "\n");
- fputs(stderr, str);
+ fputs(str, stderr);
- exit(1);
-}
-
-void logevent(char *string)
-{
+ cleanup_exit(1);
}
void ldisc_send(char *buf, int len, int interactive)
unsigned char *p = (unsigned char *) data;
unsigned len = (unsigned) datalen;
+ assert(len > 0);
+
/*
* stderr data is just spouted to local stderr and otherwise
* ignored.
}
}
-static char *password = NULL;
-static int get_line(const char *prompt, char *str, int maxlen, int is_pw)
-{
- HANDLE hin, hout;
- DWORD savemode, newmode, i;
-
- if (password) {
- static int tried_once = 0;
-
- if (tried_once) {
- return 0;
- } else {
- strncpy(str, password, maxlen);
- str[maxlen - 1] = '\0';
- tried_once = 1;
- return 1;
- }
- }
-
- hin = GetStdHandle(STD_INPUT_HANDLE);
- hout = GetStdHandle(STD_OUTPUT_HANDLE);
- if (hin == INVALID_HANDLE_VALUE || hout == INVALID_HANDLE_VALUE) {
- fprintf(stderr, "Cannot get standard input/output handles\n");
- exit(1);
- }
-
- GetConsoleMode(hin, &savemode);
- newmode = savemode | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT;
- if (is_pw)
- newmode &= ~ENABLE_ECHO_INPUT;
- else
- newmode |= ENABLE_ECHO_INPUT;
- SetConsoleMode(hin, newmode);
-
- WriteFile(hout, prompt, strlen(prompt), &i, NULL);
- ReadFile(hin, str, maxlen - 1, &i, NULL);
-
- SetConsoleMode(hin, savemode);
-
- if ((int) i > maxlen)
- i = maxlen - 1;
- else
- i = i - 2;
- str[i] = '\0';
-
- if (is_pw)
- WriteFile(hout, "\r\n", 2, &i, NULL);
-
- return 1;
-}
-
/*
* Initialize the Win$ock driver.
*/
winsock_ver = MAKEWORD(1, 1);
if (WSAStartup(winsock_ver, &wsadata)) {
fprintf(stderr, "Unable to initialise WinSock");
- exit(1);
+ cleanup_exit(1);
}
if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1) {
fprintf(stderr, "WinSock version is incompatible with 1.1");
- exit(1);
+ cleanup_exit(1);
}
}
printf(" -v show verbose messages\n");
printf(" -P port connect to specified port\n");
printf(" -pw passw login with specified password\n");
- exit(1);
+ cleanup_exit(1);
}
/*
printf("login as: ");
if (!fgets(cfg.username, sizeof(cfg.username), stdin)) {
fprintf(stderr, "psftp: aborting\n");
- exit(1);
+ cleanup_exit(1);
} else {
int len = strlen(cfg.username);
if (cfg.username[len - 1] == '\n')
char *batchfile = NULL;
flags = FLAG_STDERR | FLAG_INTERACTIVE;
- ssh_get_line = &get_line;
+ ssh_get_line = &console_get_line;
init_winsock();
sk_init();
} else if (strcmp(argv[i], "-P") == 0 && i + 1 < argc) {
portnumber = atoi(argv[++i]);
} else if (strcmp(argv[i], "-pw") == 0 && i + 1 < argc) {
- password = argv[++i];
+ console_password = argv[++i];
} else if (strcmp(argv[i], "-b") == 0 && i + 1 < argc) {
mode = 1;
batchfile = argv[++i];
- } else if (strcmp(argv[i], "-bc") == 0 && i + 1 < argc) {
+ } else if (strcmp(argv[i], "-bc") == 0) {
modeflags = modeflags | 1;
- } else if (strcmp(argv[i], "-be") == 0 && i + 1 < argc) {
+ } else if (strcmp(argv[i], "-batch") == 0) {
+ console_batch_mode = TRUE;
+ } else if (strcmp(argv[i], "-be") == 0) {
modeflags = modeflags | 2;
} else if (strcmp(argv[i], "--") == 0) {
i++;
if (userhost) {
if (psftp_connect(userhost, user, portnumber))
return 1;
- do_sftp_init();
+ if (do_sftp_init())
+ return 1;
} else {
printf("psftp: no hostname specified; use \"open host.name\""
" to connect\n");