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freebsd/usr.bin/ftp/cmds.c

2115 lines
38 KiB
C

/* $Id: cmds.c,v 1.8 1997/06/27 09:30:01 ache Exp $ */
/* $NetBSD: cmds.c,v 1.24 1997/05/17 19:44:36 pk Exp $ */
/*
* Copyright (c) 1985, 1989, 1993, 1994
* The Regents of the University of California. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)cmds.c 8.6 (Berkeley) 10/9/94";
#else
static char rcsid[] = "$Id: cmds.c,v 1.8 1997/06/27 09:30:01 ache Exp $";
#endif
#endif /* not lint */
/*
* FTP User Program -- Command Routines.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <arpa/ftp.h>
#include <ctype.h>
#include <err.h>
#include <glob.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ftp_var.h"
#include "pathnames.h"
jmp_buf jabort;
char *mname;
char *home = "/";
struct types {
char *t_name;
char *t_mode;
int t_type;
char *t_arg;
} types[] = {
{ "ascii", "A", TYPE_A, 0 },
{ "binary", "I", TYPE_I, 0 },
{ "image", "I", TYPE_I, 0 },
{ "ebcdic", "E", TYPE_E, 0 },
{ "tenex", "L", TYPE_L, bytename },
{ NULL }
};
/*
* Set transfer type.
*/
void
settype(argc, argv)
int argc;
char *argv[];
{
struct types *p;
int comret;
if (argc > 2) {
char *sep;
printf("usage: %s [", argv[0]);
sep = " ";
for (p = types; p->t_name; p++) {
printf("%s%s", sep, p->t_name);
sep = " | ";
}
puts(" ]");
code = -1;
return;
}
if (argc < 2) {
printf("Using %s mode to transfer files.\n", typename);
code = 0;
return;
}
for (p = types; p->t_name; p++)
if (strcmp(argv[1], p->t_name) == 0)
break;
if (p->t_name == 0) {
printf("%s: unknown mode.\n", argv[1]);
code = -1;
return;
}
if ((p->t_arg != NULL) && (*(p->t_arg) != '\0'))
comret = command("TYPE %s %s", p->t_mode, p->t_arg);
else
comret = command("TYPE %s", p->t_mode);
if (comret == COMPLETE) {
(void)strcpy(typename, p->t_name);
curtype = type = p->t_type;
}
}
/*
* Internal form of settype; changes current type in use with server
* without changing our notion of the type for data transfers.
* Used to change to and from ascii for listings.
*/
void
changetype(newtype, show)
int newtype, show;
{
struct types *p;
int comret, oldverbose = verbose;
if (newtype == 0)
newtype = TYPE_I;
if (newtype == curtype)
return;
if (debug == 0 && show == 0)
verbose = 0;
for (p = types; p->t_name; p++)
if (newtype == p->t_type)
break;
if (p->t_name == 0) {
warnx("internal error: unknown type %d.", newtype);
return;
}
if (newtype == TYPE_L && bytename[0] != '\0')
comret = command("TYPE %s %s", p->t_mode, bytename);
else
comret = command("TYPE %s", p->t_mode);
if (comret == COMPLETE)
curtype = newtype;
verbose = oldverbose;
}
char *stype[] = {
"type",
"",
0
};
/*
* Set binary transfer type.
*/
/*VARARGS*/
void
setbinary(argc, argv)
int argc;
char *argv[];
{
stype[1] = "binary";
settype(2, stype);
}
/*
* Set ascii transfer type.
*/
/*VARARGS*/
void
setascii(argc, argv)
int argc;
char *argv[];
{
stype[1] = "ascii";
settype(2, stype);
}
/*
* Set tenex transfer type.
*/
/*VARARGS*/
void
settenex(argc, argv)
int argc;
char *argv[];
{
stype[1] = "tenex";
settype(2, stype);
}
/*
* Set file transfer mode.
*/
/*ARGSUSED*/
void
setftmode(argc, argv)
int argc;
char *argv[];
{
printf("We only support %s mode, sorry.\n", modename);
code = -1;
}
/*
* Set file transfer format.
*/
/*ARGSUSED*/
void
setform(argc, argv)
int argc;
char *argv[];
{
printf("We only support %s format, sorry.\n", formname);
code = -1;
}
/*
* Set file transfer structure.
*/
/*ARGSUSED*/
void
setstruct(argc, argv)
int argc;
char *argv[];
{
printf("We only support %s structure, sorry.\n", structname);
code = -1;
}
/*
* Send a single file.
*/
void
put(argc, argv)
int argc;
char *argv[];
{
char *cmd;
int loc = 0;
char *oldargv1, *oldargv2;
if (argc == 2) {
argc++;
argv[2] = argv[1];
loc++;
}
if (argc < 2 && !another(&argc, &argv, "local-file"))
goto usage;
if ((argc < 3 && !another(&argc, &argv, "remote-file")) || argc > 3) {
usage:
printf("usage: %s local-file [ remote-file ]\n", argv[0]);
code = -1;
return;
}
oldargv1 = argv[1];
oldargv2 = argv[2];
if (!globulize(&argv[1])) {
code = -1;
return;
}
/*
* If "globulize" modifies argv[1], and argv[2] is a copy of
* the old argv[1], make it a copy of the new argv[1].
*/
if (argv[1] != oldargv1 && argv[2] == oldargv1) {
argv[2] = argv[1];
}
cmd = (argv[0][0] == 'a') ? "APPE" : ((sunique) ? "STOU" : "STOR");
if (loc && ntflag) {
argv[2] = dotrans(argv[2]);
}
if (loc && mapflag) {
argv[2] = domap(argv[2]);
}
sendrequest(cmd, argv[1], argv[2],
argv[1] != oldargv1 || argv[2] != oldargv2);
}
/*
* Send multiple files.
*/
void
mput(argc, argv)
int argc;
char *argv[];
{
int i;
sig_t oldintr;
int ointer;
char *tp;
if (argc < 2 && !another(&argc, &argv, "local-files")) {
printf("usage: %s local-files\n", argv[0]);
code = -1;
return;
}
mname = argv[0];
mflag = 1;
oldintr = signal(SIGINT, mabort);
(void)setjmp(jabort);
if (proxy) {
char *cp, *tp2, tmpbuf[MAXPATHLEN];
while ((cp = remglob(argv, 0, NULL)) != NULL) {
if (*cp == '\0') {
mflag = 0;
continue;
}
if (mflag && confirm(argv[0], cp)) {
tp = cp;
if (mcase) {
while (*tp && !islower((unsigned char)*tp)) {
tp++;
}
if (!*tp) {
tp = cp;
tp2 = tmpbuf;
while ((*tp2 = *tp) != '\0') {
if (isupper((unsigned char)*tp2))
*tp2 = tolower((unsigned char)*tp2);
tp++;
tp2++;
}
}
tp = tmpbuf;
}
if (ntflag) {
tp = dotrans(tp);
}
if (mapflag) {
tp = domap(tp);
}
sendrequest((sunique) ? "STOU" : "STOR",
cp, tp, cp != tp || !interactive);
if (!mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", "mput")) {
mflag++;
}
interactive = ointer;
}
}
}
(void)signal(SIGINT, oldintr);
mflag = 0;
return;
}
for (i = 1; i < argc; i++) {
char **cpp;
glob_t gl;
int flags;
if (!doglob) {
if (mflag && confirm(argv[0], argv[i])) {
tp = (ntflag) ? dotrans(argv[i]) : argv[i];
tp = (mapflag) ? domap(tp) : tp;
sendrequest((sunique) ? "STOU" : "STOR",
argv[i], tp, tp != argv[i] || !interactive);
if (!mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", "mput")) {
mflag++;
}
interactive = ointer;
}
}
continue;
}
memset(&gl, 0, sizeof(gl));
flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE;
if (glob(argv[i], flags, NULL, &gl) || gl.gl_pathc == 0) {
warnx("%s: not found", argv[i]);
globfree(&gl);
continue;
}
for (cpp = gl.gl_pathv; cpp && *cpp != NULL; cpp++) {
if (mflag && confirm(argv[0], *cpp)) {
tp = (ntflag) ? dotrans(*cpp) : *cpp;
tp = (mapflag) ? domap(tp) : tp;
sendrequest((sunique) ? "STOU" : "STOR",
*cpp, tp, *cpp != tp || !interactive);
if (!mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", "mput")) {
mflag++;
}
interactive = ointer;
}
}
}
globfree(&gl);
}
(void)signal(SIGINT, oldintr);
mflag = 0;
}
void
reget(argc, argv)
int argc;
char *argv[];
{
(void)getit(argc, argv, 1, "r+w");
}
void
get(argc, argv)
int argc;
char *argv[];
{
(void)getit(argc, argv, 0, restart_point ? "r+w" : "w" );
}
/*
* Receive one file.
*/
int
getit(argc, argv, restartit, mode)
int argc;
char *argv[];
int restartit;
const char *mode;
{
int loc = 0;
char *oldargv1, *oldargv2;
if (argc == 2) {
argc++;
argv[2] = argv[1];
loc++;
}
if (argc < 2 && !another(&argc, &argv, "remote-file"))
goto usage;
if ((argc < 3 && !another(&argc, &argv, "local-file")) || argc > 3) {
usage:
printf("usage: %s remote-file [ local-file ]\n", argv[0]);
code = -1;
return (0);
}
oldargv1 = argv[1];
oldargv2 = argv[2];
if (!globulize(&argv[2])) {
code = -1;
return (0);
}
if (loc && mcase) {
char *tp = argv[1], *tp2, tmpbuf[MAXPATHLEN];
while (*tp && !islower((unsigned char)*tp)) {
tp++;
}
if (!*tp) {
tp = argv[2];
tp2 = tmpbuf;
while ((*tp2 = *tp) != '\0') {
if (isupper((unsigned char)*tp2))
*tp2 = tolower((unsigned char)*tp2);
tp++;
tp2++;
}
argv[2] = tmpbuf;
}
}
if (loc && ntflag)
argv[2] = dotrans(argv[2]);
if (loc && mapflag)
argv[2] = domap(argv[2]);
if (restartit) {
struct stat stbuf;
int ret;
ret = stat(argv[2], &stbuf);
if (restartit == 1) {
if (ret < 0) {
warn("local: %s", argv[2]);
return (0);
}
restart_point = stbuf.st_size;
} else {
if (ret == 0) {
time_t mtime;
mtime = remotemodtime(argv[1], 0);
if (mtime == -1)
return (0);
if (stbuf.st_mtime >= mtime)
return (1);
}
}
}
recvrequest("RETR", argv[2], argv[1], mode,
argv[1] != oldargv1 || argv[2] != oldargv2);
restart_point = 0;
return (0);
}
/* ARGSUSED */
void
mabort(signo)
int signo;
{
int ointer, oconf;
alarmtimer(0);
putchar('\n');
(void)fflush(stdout);
if (mflag && fromatty) {
ointer = interactive;
oconf = confirmrest;
interactive = 1;
confirmrest = 0;
if (confirm("Continue with", mname)) {
interactive = ointer;
confirmrest = oconf;
longjmp(jabort, 0);
}
interactive = ointer;
confirmrest = oconf;
}
mflag = 0;
longjmp(jabort, 0);
}
/*
* Get multiple files.
*/
void
mget(argc, argv)
int argc;
char *argv[];
{
sig_t oldintr;
int ch, ointer;
char *cp, *tp, *tp2, tmpbuf[MAXPATHLEN];
if (argc < 2 && !another(&argc, &argv, "remote-files")) {
printf("usage: %s remote-files\n", argv[0]);
code = -1;
return;
}
mname = argv[0];
mflag = 1;
oldintr = signal(SIGINT, mabort);
(void)setjmp(jabort);
while ((cp = remglob(argv, proxy, NULL)) != NULL) {
if (*cp == '\0') {
mflag = 0;
continue;
}
if (mflag && confirm(argv[0], cp)) {
tp = cp;
if (mcase) {
for (tp2 = tmpbuf; (ch = (unsigned char)*tp++) != 0; )
*tp2++ = isupper(ch) ? tolower(ch) : ch;
*tp2 = '\0';
tp = tmpbuf;
}
if (ntflag) {
tp = dotrans(tp);
}
if (mapflag) {
tp = domap(tp);
}
recvrequest("RETR", tp, cp, "w",
tp != cp || !interactive);
if (!mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", "mget")) {
mflag++;
}
interactive = ointer;
}
}
}
(void)signal(SIGINT, oldintr);
mflag = 0;
}
char *
onoff(bool)
int bool;
{
return (bool ? "on" : "off");
}
/*
* Show status.
*/
/*ARGSUSED*/
void
status(argc, argv)
int argc;
char *argv[];
{
int i;
if (connected)
printf("Connected %sto %s.\n",
connected == -1 ? "and logged in" : "", hostname);
else
puts("Not connected.");
if (!proxy) {
pswitch(1);
if (connected) {
printf("Connected for proxy commands to %s.\n",
hostname);
}
else {
puts("No proxy connection.");
}
pswitch(0);
}
printf("Passive mode: %s.\n", onoff(passivemode));
printf("Mode: %s; Type: %s; Form: %s; Structure: %s.\n",
modename, typename, formname, structname);
printf("Verbose: %s; Bell: %s; Prompting: %s; Globbing: %s.\n",
onoff(verbose), onoff(bell), onoff(interactive),
onoff(doglob));
printf("Store unique: %s; Receive unique: %s.\n", onoff(sunique),
onoff(runique));
printf("Preserve modification times: %s.\n", onoff(preserve));
printf("Case: %s; CR stripping: %s.\n", onoff(mcase), onoff(crflag));
if (ntflag) {
printf("Ntrans: (in) %s (out) %s\n", ntin, ntout);
}
else {
puts("Ntrans: off.");
}
if (mapflag) {
printf("Nmap: (in) %s (out) %s\n", mapin, mapout);
}
else {
puts("Nmap: off.");
}
printf("Hash mark printing: %s; Mark count: %d; Progress bar: %s.\n",
onoff(hash), mark, onoff(progress));
printf("Use of PORT cmds: %s.\n", onoff(sendport));
#ifndef SMALL
printf("Command line editing: %s.\n", onoff(editing));
#endif /* !SMALL */
if (macnum > 0) {
puts("Macros:");
for (i=0; i<macnum; i++) {
printf("\t%s\n", macros[i].mac_name);
}
}
code = 0;
}
/*
* Toggle a variable
*/
int
togglevar(argc, argv, var, mesg)
int argc;
char *argv[];
int *var;
const char *mesg;
{
if (argc < 2) {
*var = !*var;
} else if (argc == 2 && strcasecmp(argv[1], "on") == 0) {
*var = 1;
} else if (argc == 2 && strcasecmp(argv[1], "off") == 0) {
*var = 0;
} else {
printf("usage: %s [ on | off ]\n", argv[0]);
return (-1);
}
if (mesg)
printf("%s %s.\n", mesg, onoff(*var));
return (*var);
}
/*
* Set beep on cmd completed mode.
*/
/*VARARGS*/
void
setbell(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &bell, "Bell mode");
}
#ifndef SMALL
/*
* Set command line editing
*/
/*VARARGS*/
void
setedit(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &editing, "Editing mode");
controlediting();
}
#endif /* !SMALL */
/*
* Turn on packet tracing.
*/
/*VARARGS*/
void
settrace(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &trace, "Packet tracing");
}
/*
* Toggle hash mark printing during transfers, or set hash mark bytecount.
*/
/*VARARGS*/
void
sethash(argc, argv)
int argc;
char *argv[];
{
if (argc == 1)
hash = !hash;
else if (argc != 2) {
printf("usage: %s [ on | off | bytecount ]\n", argv[0]);
code = -1;
return;
} else if (strcasecmp(argv[1], "on") == 0)
hash = 1;
else if (strcasecmp(argv[1], "off") == 0)
hash = 0;
else {
int nmark = atol(argv[1]);
if (nmark < 1) {
printf("%s: bad bytecount value.\n", argv[1]);
code = -1;
return;
}
mark = nmark;
hash = 1;
}
printf("Hash mark printing %s", onoff(hash));
if (hash)
printf(" (%d bytes/hash mark)", mark);
puts(".");
code = hash;
}
/*
* Turn on printing of server echo's.
*/
/*VARARGS*/
void
setverbose(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &verbose, "Verbose mode");
}
/*
* Toggle PORT cmd use before each data connection.
*/
/*VARARGS*/
void
setport(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &sendport, "Use of PORT cmds");
}
/*
* Toggle transfer progress bar.
*/
/*VARARGS*/
void
setprogress(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &progress, "Progress bar");
}
/*
* Turn on interactive prompting
* during mget, mput, and mdelete.
*/
/*VARARGS*/
void
setprompt(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &interactive, "Interactive mode");
}
/*
* Toggle metacharacter interpretation
* on local file names.
*/
/*VARARGS*/
void
setglob(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &doglob, "Globbing");
}
/*
* Toggle preserving modification times on retreived files.
*/
/*VARARGS*/
void
setpreserve(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &preserve, "Preserve modification times");
}
/*
* Set debugging mode on/off and/or
* set level of debugging.
*/
/*VARARGS*/
void
setdebug(argc, argv)
int argc;
char *argv[];
{
int val;
if (argc > 2) {
printf("usage: %s [ on | off | debuglevel ]\n", argv[0]);
code = -1;
return;
} else if (argc == 2) {
if (strcasecmp(argv[1], "on") == 0)
debug = 1;
else if (strcasecmp(argv[1], "off") == 0)
debug = 0;
else {
val = atoi(argv[1]);
if (val < 0) {
printf("%s: bad debugging value.\n", argv[1]);
code = -1;
return;
}
debug = val;
}
} else
debug = !debug;
if (debug)
options |= SO_DEBUG;
else
options &= ~SO_DEBUG;
printf("Debugging %s (debug=%d).\n", onoff(debug), debug);
code = debug > 0;
}
/*
* Set current working directory
* on remote machine.
*/
void
cd(argc, argv)
int argc;
char *argv[];
{
int r;
if ((argc < 2 && !another(&argc, &argv, "remote-directory")) ||
argc > 2) {
printf("usage: %s remote-directory\n", argv[0]);
code = -1;
return;
}
r = command("CWD %s", argv[1]);
if (r == ERROR && code == 500) {
if (verbose)
puts("CWD command not recognized, trying XCWD.");
r = command("XCWD %s", argv[1]);
}
if (r == COMPLETE)
dirchange = 1;
}
/*
* Set current working directory
* on local machine.
*/
void
lcd(argc, argv)
int argc;
char *argv[];
{
char buf[MAXPATHLEN];
if (argc < 2)
argc++, argv[1] = home;
if (argc != 2) {
printf("usage: %s local-directory\n", argv[0]);
code = -1;
return;
}
if (!globulize(&argv[1])) {
code = -1;
return;
}
if (chdir(argv[1]) < 0) {
warn("local: %s", argv[1]);
code = -1;
return;
}
if (getcwd(buf, sizeof(buf)) != NULL)
printf("Local directory now %s\n", buf);
else
warn("getcwd: %s", argv[1]);
code = 0;
}
/*
* Delete a single file.
*/
void
delete(argc, argv)
int argc;
char *argv[];
{
if ((argc < 2 && !another(&argc, &argv, "remote-file")) || argc > 2) {
printf("usage: %s remote-file\n", argv[0]);
code = -1;
return;
}
(void)command("DELE %s", argv[1]);
}
/*
* Delete multiple files.
*/
void
mdelete(argc, argv)
int argc;
char *argv[];
{
sig_t oldintr;
int ointer;
char *cp;
if (argc < 2 && !another(&argc, &argv, "remote-files")) {
printf("usage: %s remote-files\n", argv[0]);
code = -1;
return;
}
mname = argv[0];
mflag = 1;
oldintr = signal(SIGINT, mabort);
(void)setjmp(jabort);
while ((cp = remglob(argv, 0, NULL)) != NULL) {
if (*cp == '\0') {
mflag = 0;
continue;
}
if (mflag && confirm(argv[0], cp)) {
(void)command("DELE %s", cp);
if (!mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", "mdelete")) {
mflag++;
}
interactive = ointer;
}
}
}
(void)signal(SIGINT, oldintr);
mflag = 0;
}
/*
* Rename a remote file.
*/
void
renamefile(argc, argv)
int argc;
char *argv[];
{
if (argc < 2 && !another(&argc, &argv, "from-name"))
goto usage;
if ((argc < 3 && !another(&argc, &argv, "to-name")) || argc > 3) {
usage:
printf("usage: %s from-name to-name\n", argv[0]);
code = -1;
return;
}
if (command("RNFR %s", argv[1]) == CONTINUE)
(void)command("RNTO %s", argv[2]);
}
/*
* Get a directory listing
* of remote files.
*/
void
ls(argc, argv)
int argc;
char *argv[];
{
const char *cmd;
if (argc < 2)
argc++, argv[1] = NULL;
if (argc < 3)
argc++, argv[2] = "-";
if (argc > 3) {
printf("usage: %s remote-directory local-file\n", argv[0]);
code = -1;
return;
}
cmd = strcmp(argv[0], "dir") == 0 ? "LIST" : "NLST";
if (strcmp(argv[2], "-") && !globulize(&argv[2])) {
code = -1;
return;
}
if (strcmp(argv[2], "-") && *argv[2] != '|')
if (!globulize(&argv[2]) || !confirm("output to local-file:",
argv[2])) {
code = -1;
return;
}
recvrequest(cmd, argv[2], argv[1], "w", 0);
/* flush results in case commands are coming from a pipe */
fflush(stdout);
}
/*
* Get a directory listing
* of multiple remote files.
*/
void
mls(argc, argv)
int argc;
char *argv[];
{
sig_t oldintr;
int ointer, i;
const char *cmd;
char mode[1], *dest;
if (argc < 2 && !another(&argc, &argv, "remote-files"))
goto usage;
if (argc < 3 && !another(&argc, &argv, "local-file")) {
usage:
printf("usage: %s remote-files local-file\n", argv[0]);
code = -1;
return;
}
dest = argv[argc - 1];
argv[argc - 1] = NULL;
if (strcmp(dest, "-") && *dest != '|')
if (!globulize(&dest) ||
!confirm("output to local-file:", dest)) {
code = -1;
return;
}
cmd = strcmp(argv[0], "mls") == 0 ? "NLST" : "LIST";
mname = argv[0];
mflag = 1;
oldintr = signal(SIGINT, mabort);
(void)setjmp(jabort);
for (i = 1; mflag && i < argc-1; ++i) {
*mode = (i == 1) ? 'w' : 'a';
recvrequest(cmd, dest, argv[i], mode, 0);
if (!mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", argv[0])) {
mflag ++;
}
interactive = ointer;
}
}
(void)signal(SIGINT, oldintr);
mflag = 0;
}
/*
* Do a shell escape
*/
/*ARGSUSED*/
void
shell(argc, argv)
int argc;
char *argv[];
{
pid_t pid;
sig_t old1, old2;
char shellnam[MAXPATHLEN], *shell, *namep;
union wait status;
old1 = signal (SIGINT, SIG_IGN);
old2 = signal (SIGQUIT, SIG_IGN);
if ((pid = fork()) == 0) {
for (pid = 3; pid < 20; pid++)
(void)close(pid);
(void)signal(SIGINT, SIG_DFL);
(void)signal(SIGQUIT, SIG_DFL);
shell = getenv("SHELL");
if (shell == NULL)
shell = _PATH_BSHELL;
namep = strrchr(shell, '/');
if (namep == NULL)
namep = shell;
shellnam[0] = '-';
(void)strncpy(shellnam + 1, ++namep, sizeof(shellnam) - 2);
shellnam[sizeof(shellnam) - 1] = '\0';
if (strcmp(namep, "sh") != 0)
shellnam[0] = '+';
if (debug) {
puts(shell);
(void)fflush(stdout);
}
if (argc > 1) {
execl(shell, shellnam, "-c", altarg, (char *)0);
}
else {
execl(shell, shellnam, (char *)0);
}
warn("%s", shell);
code = -1;
exit(1);
}
if (pid > 0)
while (wait((int *)&status) != pid)
;
(void)signal(SIGINT, old1);
(void)signal(SIGQUIT, old2);
if (pid == -1) {
warn("Try again later");
code = -1;
}
else {
code = 0;
}
}
/*
* Send new user information (re-login)
*/
void
user(argc, argv)
int argc;
char *argv[];
{
char acct[80];
int n, aflag = 0;
if (argc < 2)
(void)another(&argc, &argv, "username");
if (argc < 2 || argc > 4) {
printf("usage: %s username [password] [account]\n", argv[0]);
code = -1;
return;
}
n = command("USER %s", argv[1]);
if (n == CONTINUE) {
if (argc < 3 )
argv[2] = getpass("Password: "), argc++;
n = command("PASS %s", argv[2]);
}
if (n == CONTINUE) {
if (argc < 4) {
(void)fputs("Account: ", stdout);
(void)fflush(stdout);
(void)fgets(acct, sizeof(acct) - 1, stdin);
acct[strlen(acct) - 1] = '\0';
argv[3] = acct; argc++;
}
n = command("ACCT %s", argv[3]);
aflag++;
}
if (n != COMPLETE) {
puts("Login failed.");
return;
}
if (!aflag && argc == 4) {
(void)command("ACCT %s", argv[3]);
}
connected = -1;
}
/*
* Print working directory on remote machine.
*/
/*VARARGS*/
void
pwd(argc, argv)
int argc;
char *argv[];
{
int oldverbose = verbose;
/*
* If we aren't verbose, this doesn't do anything!
*/
verbose = 1;
if (command("PWD") == ERROR && code == 500) {
puts("PWD command not recognized, trying XPWD.");
(void)command("XPWD");
}
verbose = oldverbose;
}
/*
* Print working directory on local machine.
*/
void
lpwd(argc, argv)
int argc;
char *argv[];
{
char buf[MAXPATHLEN];
if (getcwd(buf, sizeof(buf)) != NULL)
printf("Local directory %s\n", buf);
else
warn("getcwd");
code = 0;
}
/*
* Make a directory.
*/
void
makedir(argc, argv)
int argc;
char *argv[];
{
if ((argc < 2 && !another(&argc, &argv, "directory-name")) ||
argc > 2) {
printf("usage: %s directory-name\n", argv[0]);
code = -1;
return;
}
if (command("MKD %s", argv[1]) == ERROR && code == 500) {
if (verbose)
puts("MKD command not recognized, trying XMKD.");
(void)command("XMKD %s", argv[1]);
}
}
/*
* Remove a directory.
*/
void
removedir(argc, argv)
int argc;
char *argv[];
{
if ((argc < 2 && !another(&argc, &argv, "directory-name")) ||
argc > 2) {
printf("usage: %s directory-name\n", argv[0]);
code = -1;
return;
}
if (command("RMD %s", argv[1]) == ERROR && code == 500) {
if (verbose)
puts("RMD command not recognized, trying XRMD.");
(void)command("XRMD %s", argv[1]);
}
}
/*
* Send a line, verbatim, to the remote machine.
*/
void
quote(argc, argv)
int argc;
char *argv[];
{
if (argc < 2 && !another(&argc, &argv, "command line to send")) {
printf("usage: %s line-to-send\n", argv[0]);
code = -1;
return;
}
quote1("", argc, argv);
}
/*
* Send a SITE command to the remote machine. The line
* is sent verbatim to the remote machine, except that the
* word "SITE" is added at the front.
*/
void
site(argc, argv)
int argc;
char *argv[];
{
if (argc < 2 && !another(&argc, &argv, "arguments to SITE command")) {
printf("usage: %s line-to-send\n", argv[0]);
code = -1;
return;
}
quote1("SITE ", argc, argv);
}
/*
* Turn argv[1..argc) into a space-separated string, then prepend initial text.
* Send the result as a one-line command and get response.
*/
void
quote1(initial, argc, argv)
const char *initial;
int argc;
char *argv[];
{
int i, len;
char buf[BUFSIZ]; /* must be >= sizeof(line) */
(void)strncpy(buf, initial, sizeof(buf) - 1);
buf[sizeof(buf) - 1] = '\0';
if (argc > 1) {
len = strlen(buf);
len += strlen(strncpy(&buf[len], argv[1],
sizeof(buf) - len - 1));
for (i = 2; i < argc && len < sizeof(buf); i++) {
buf[len++] = ' ';
len += strlen(strncpy(&buf[len], argv[i],
sizeof(buf) - len) - 1);
}
}
if (command(buf) == PRELIM) {
while (getreply(0) == PRELIM)
continue;
}
}
void
do_chmod(argc, argv)
int argc;
char *argv[];
{
if (argc < 2 && !another(&argc, &argv, "mode"))
goto usage;
if ((argc < 3 && !another(&argc, &argv, "file-name")) || argc > 3) {
usage:
printf("usage: %s mode file-name\n", argv[0]);
code = -1;
return;
}
(void)command("SITE CHMOD %s %s", argv[1], argv[2]);
}
void
do_umask(argc, argv)
int argc;
char *argv[];
{
int oldverbose = verbose;
verbose = 1;
(void)command(argc == 1 ? "SITE UMASK" : "SITE UMASK %s", argv[1]);
verbose = oldverbose;
}
void
idle(argc, argv)
int argc;
char *argv[];
{
int oldverbose = verbose;
verbose = 1;
(void)command(argc == 1 ? "SITE IDLE" : "SITE IDLE %s", argv[1]);
verbose = oldverbose;
}
/*
* Ask the other side for help.
*/
void
rmthelp(argc, argv)
int argc;
char *argv[];
{
int oldverbose = verbose;
verbose = 1;
(void)command(argc == 1 ? "HELP" : "HELP %s", argv[1]);
verbose = oldverbose;
}
/*
* Terminate session and exit.
*/
/*VARARGS*/
void
quit(argc, argv)
int argc;
char *argv[];
{
if (connected)
disconnect(0, 0);
pswitch(1);
if (connected) {
disconnect(0, 0);
}
exit(0);
}
/*
* Terminate session, but don't exit.
*/
void
disconnect(argc, argv)
int argc;
char *argv[];
{
if (!connected)
return;
(void)command("QUIT");
if (cout) {
(void)fclose(cout);
}
cout = NULL;
connected = 0;
data = -1;
if (!proxy) {
macnum = 0;
}
}
void
account(argc, argv)
int argc;
char *argv[];
{
char *ap;
if (argc > 2) {
printf("usage: %s [password]\n", argv[0]);
code = -1;
return;
}
else if (argc == 2)
ap = argv[1];
else
ap = getpass("Account:");
(void)command("ACCT %s", ap);
}
jmp_buf abortprox;
void
proxabort(notused)
int notused;
{
alarmtimer(0);
if (!proxy) {
pswitch(1);
}
if (connected) {
proxflag = 1;
}
else {
proxflag = 0;
}
pswitch(0);
longjmp(abortprox, 1);
}
void
doproxy(argc, argv)
int argc;
char *argv[];
{
struct cmd *c;
int cmdpos;
sig_t oldintr;
if (argc < 2 && !another(&argc, &argv, "command")) {
printf("usage: %s command\n", argv[0]);
code = -1;
return;
}
c = getcmd(argv[1]);
if (c == (struct cmd *) -1) {
puts("?Ambiguous command.");
(void)fflush(stdout);
code = -1;
return;
}
if (c == 0) {
puts("?Invalid command.");
(void)fflush(stdout);
code = -1;
return;
}
if (!c->c_proxy) {
puts("?Invalid proxy command.");
(void)fflush(stdout);
code = -1;
return;
}
if (setjmp(abortprox)) {
code = -1;
return;
}
oldintr = signal(SIGINT, proxabort);
pswitch(1);
if (c->c_conn && !connected) {
puts("Not connected.");
(void)fflush(stdout);
pswitch(0);
(void)signal(SIGINT, oldintr);
code = -1;
return;
}
cmdpos = strcspn(line, " \t");
if (cmdpos > 0) /* remove leading "proxy " from input buffer */
memmove(line, line + cmdpos + 1, strlen(line) - cmdpos + 1);
(*c->c_handler)(argc-1, argv+1);
if (connected) {
proxflag = 1;
}
else {
proxflag = 0;
}
pswitch(0);
(void)signal(SIGINT, oldintr);
}
void
setcase(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &mcase, "Case mapping");
}
void
setcr(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &crflag, "Carriage Return stripping");
}
void
setntrans(argc, argv)
int argc;
char *argv[];
{
if (argc == 1) {
ntflag = 0;
puts("Ntrans off.");
code = ntflag;
return;
}
ntflag++;
code = ntflag;
(void)strncpy(ntin, argv[1], sizeof(ntin) - 1);
ntin[sizeof(ntin) - 1] = '\0';
if (argc == 2) {
ntout[0] = '\0';
return;
}
(void)strncpy(ntout, argv[2], sizeof(ntout) - 1);
ntout[sizeof(ntout) - 1] = '\0';
}
char *
dotrans(name)
char *name;
{
static char new[MAXPATHLEN];
char *cp1, *cp2 = new;
int i, ostop, found;
for (ostop = 0; *(ntout + ostop) && ostop < 16; ostop++)
continue;
for (cp1 = name; *cp1; cp1++) {
found = 0;
for (i = 0; *(ntin + i) && i < 16; i++) {
if (*cp1 == *(ntin + i)) {
found++;
if (i < ostop) {
*cp2++ = *(ntout + i);
}
break;
}
}
if (!found) {
*cp2++ = *cp1;
}
}
*cp2 = '\0';
return (new);
}
void
setnmap(argc, argv)
int argc;
char *argv[];
{
char *cp;
if (argc == 1) {
mapflag = 0;
puts("Nmap off.");
code = mapflag;
return;
}
if ((argc < 3 && !another(&argc, &argv, "mapout")) || argc > 3) {
printf("usage: %s [mapin mapout]\n", argv[0]);
code = -1;
return;
}
mapflag = 1;
code = 1;
cp = strchr(altarg, ' ');
if (proxy) {
while(*++cp == ' ')
continue;
altarg = cp;
cp = strchr(altarg, ' ');
}
*cp = '\0';
(void)strncpy(mapin, altarg, MAXPATHLEN - 1);
while (*++cp == ' ')
continue;
(void)strncpy(mapout, cp, MAXPATHLEN - 1);
}
char *
domap(name)
char *name;
{
static char new[MAXPATHLEN];
char *cp1 = name, *cp2 = mapin;
char *tp[9], *te[9];
int i, toks[9], toknum = 0, match = 1;
for (i=0; i < 9; ++i) {
toks[i] = 0;
}
while (match && *cp1 && *cp2) {
switch (*cp2) {
case '\\':
if (*++cp2 != *cp1) {
match = 0;
}
break;
case '$':
if (*(cp2+1) >= '1' && (*cp2+1) <= '9') {
if (*cp1 != *(++cp2+1)) {
toks[toknum = *cp2 - '1']++;
tp[toknum] = cp1;
while (*++cp1 && *(cp2+1)
!= *cp1);
te[toknum] = cp1;
}
cp2++;
break;
}
/* FALLTHROUGH */
default:
if (*cp2 != *cp1) {
match = 0;
}
break;
}
if (match && *cp1) {
cp1++;
}
if (match && *cp2) {
cp2++;
}
}
if (!match && *cp1) /* last token mismatch */
{
toks[toknum] = 0;
}
cp1 = new;
*cp1 = '\0';
cp2 = mapout;
while (*cp2) {
match = 0;
switch (*cp2) {
case '\\':
if (*(cp2 + 1)) {
*cp1++ = *++cp2;
}
break;
case '[':
LOOP:
if (*++cp2 == '$' && isdigit((unsigned char)*(cp2+1))) {
if (*++cp2 == '0') {
char *cp3 = name;
while (*cp3) {
*cp1++ = *cp3++;
}
match = 1;
}
else if (toks[toknum = *cp2 - '1']) {
char *cp3 = tp[toknum];
while (cp3 != te[toknum]) {
*cp1++ = *cp3++;
}
match = 1;
}
}
else {
while (*cp2 && *cp2 != ',' &&
*cp2 != ']') {
if (*cp2 == '\\') {
cp2++;
}
else if (*cp2 == '$' &&
isdigit((unsigned char)*(cp2+1))) {
if (*++cp2 == '0') {
char *cp3 = name;
while (*cp3) {
*cp1++ = *cp3++;
}
}
else if (toks[toknum =
*cp2 - '1']) {
char *cp3=tp[toknum];
while (cp3 !=
te[toknum]) {
*cp1++ = *cp3++;
}
}
}
else if (*cp2) {
*cp1++ = *cp2++;
}
}
if (!*cp2) {
puts(
"nmap: unbalanced brackets.");
return (name);
}
match = 1;
cp2--;
}
if (match) {
while (*++cp2 && *cp2 != ']') {
if (*cp2 == '\\' && *(cp2 + 1)) {
cp2++;
}
}
if (!*cp2) {
puts(
"nmap: unbalanced brackets.");
return (name);
}
break;
}
switch (*++cp2) {
case ',':
goto LOOP;
case ']':
break;
default:
cp2--;
goto LOOP;
}
break;
case '$':
if (isdigit((unsigned char)*(cp2 + 1))) {
if (*++cp2 == '0') {
char *cp3 = name;
while (*cp3) {
*cp1++ = *cp3++;
}
}
else if (toks[toknum = *cp2 - '1']) {
char *cp3 = tp[toknum];
while (cp3 != te[toknum]) {
*cp1++ = *cp3++;
}
}
break;
}
/* intentional drop through */
default:
*cp1++ = *cp2;
break;
}
cp2++;
}
*cp1 = '\0';
if (!*new) {
return (name);
}
return (new);
}
void
setpassive(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &passivemode,
verbose ? "Passive mode" : NULL);
}
void
setsunique(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &sunique, "Store unique");
}
void
setrunique(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &runique, "Receive unique");
}
/* change directory to parent directory */
void
cdup(argc, argv)
int argc;
char *argv[];
{
int r;
r = command("CDUP");
if (r == ERROR && code == 500) {
if (verbose)
puts("CDUP command not recognized, trying XCUP.");
r = command("XCUP");
}
if (r == COMPLETE)
dirchange = 1;
}
/* restart transfer at specific point */
void
restart(argc, argv)
int argc;
char *argv[];
{
if (argc != 2)
puts("restart: offset not specified.");
else {
restart_point = atol(argv[1]);
printf("Restarting at %qd. Execute get, put or append to"
"initiate transfer\n", restart_point);
}
}
/* show remote system type */
void
syst(argc, argv)
int argc;
char *argv[];
{
(void)command("SYST");
}
void
macdef(argc, argv)
int argc;
char *argv[];
{
char *tmp;
int c;
if (macnum == 16) {
puts("Limit of 16 macros have already been defined.");
code = -1;
return;
}
if ((argc < 2 && !another(&argc, &argv, "macro name")) || argc > 2) {
printf("usage: %s macro_name\n", argv[0]);
code = -1;
return;
}
if (interactive)
puts(
"Enter macro line by line, terminating it with a null line.");
(void)strncpy(macros[macnum].mac_name, argv[1],
sizeof(macros[macnum].mac_name) - 1);
macros[macnum].mac_name[sizeof(macros[macnum].mac_name) - 1] = '\0';
if (macnum == 0)
macros[macnum].mac_start = macbuf;
else
macros[macnum].mac_start = macros[macnum - 1].mac_end + 1;
tmp = macros[macnum].mac_start;
while (tmp != macbuf+4096) {
if ((c = getchar()) == EOF) {
puts("macdef: end of file encountered.");
code = -1;
return;
}
if ((*tmp = c) == '\n') {
if (tmp == macros[macnum].mac_start) {
macros[macnum++].mac_end = tmp;
code = 0;
return;
}
if (*(tmp-1) == '\0') {
macros[macnum++].mac_end = tmp - 1;
code = 0;
return;
}
*tmp = '\0';
}
tmp++;
}
while (1) {
while ((c = getchar()) != '\n' && c != EOF)
/* LOOP */;
if (c == EOF || getchar() == '\n') {
puts("Macro not defined - 4K buffer exceeded.");
code = -1;
return;
}
}
}
/*
* Restrict FTP data port range to a high group of "safe" ports
*/
void
setrestrict(argc, argv)
int argc;
char *argv[];
{
code = togglevar(argc, argv, &restricted_data_ports,
verbose ? "Restricted data ports" : NULL);
}
/*
* get size of file on remote machine
*/
void
sizecmd(argc, argv)
int argc;
char *argv[];
{
off_t size;
if ((argc < 2 && !another(&argc, &argv, "filename")) || argc > 2) {
printf("usage: %s filename\n", argv[0]);
code = -1;
return;
}
size = remotesize(argv[1], 1);
if (size != -1)
printf("%s\t%qd\n", argv[1], size);
code = size;
}
/*
* get last modification time of file on remote machine
*/
void
modtime(argc, argv)
int argc;
char *argv[];
{
time_t mtime;
if ((argc < 2 && !another(&argc, &argv, "filename")) || argc > 2) {
printf("usage: %s filename\n", argv[0]);
code = -1;
return;
}
mtime = remotemodtime(argv[1], 1);
if (mtime != -1)
printf("%s\t%s", argv[1], asctime(localtime(&mtime)));
code = mtime;
}
/*
* show status on remote machine
*/
void
rmtstatus(argc, argv)
int argc;
char *argv[];
{
(void)command(argc > 1 ? "STAT %s" : "STAT" , argv[1]);
}
/*
* get file if modtime is more recent than current file
*/
void
newer(argc, argv)
int argc;
char *argv[];
{
if (getit(argc, argv, -1, "w"))
printf("Local file \"%s\" is newer than remote file \"%s\".\n",
argv[2], argv[1]);
}
/*
* Display one file through $PAGER (defaults to "more").
*/
void
page(argc, argv)
int argc;
char *argv[];
{
int orestart_point, ohash, overbose;
char *p, *pager;
if ((argc < 2 && !another(&argc, &argv, "filename")) || argc > 2) {
printf("usage: %s filename\n", argv[0]);
code = -1;
return;
}
if (!globulize(&argv[1])) {
code = -1;
return;
}
p = getenv("PAGER");
if (p == NULL)
p = PAGER;
if ((pager = malloc(strlen(p) + 2)) == NULL)
errx(1, "Can't allocate memory for $PAGER");
(void)sprintf(pager, "|%s", p);
orestart_point = restart_point;
ohash = hash;
overbose = verbose;
restart_point = hash = verbose = 0;
recvrequest("RETR", pager, argv[1], "r+w", 1);
(void)free(pager);
restart_point = orestart_point;
hash = ohash;
verbose = overbose;
}