NetBSD/usr.bin/ftp/main.c

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/* $NetBSD: main.c,v 1.38 1999/03/08 04:36:13 lukem Exp $ */
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/*
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* Copyright (c) 1985, 1989, 1993, 1994
* The Regents of the University of California. All rights reserved.
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*
* 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.
*/
#include <sys/cdefs.h>
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#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1985, 1989, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
#ifndef lint
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#if 0
static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94";
#else
__RCSID("$NetBSD: main.c,v 1.38 1999/03/08 04:36:13 lukem Exp $");
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#endif
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#endif /* not lint */
/*
* FTP User Program -- Command Interface.
*/
#include <sys/types.h>
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#include <sys/socket.h>
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#include <err.h>
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#include <netdb.h>
#include <pwd.h>
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#include <signal.h>
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#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "ftp_var.h"
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#include "pathnames.h"
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#define FTP_PROXY "ftp_proxy" /* env var with FTP proxy location */
#define HTTP_PROXY "http_proxy" /* env var with HTTP proxy location */
#define NO_PROXY "no_proxy" /* env var with list of non-proxied
* hosts, comma or space separated */
int main __P((int, char **));
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int
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main(argc, argv)
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int argc;
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char *argv[];
{
struct servent *sp;
int ch, top, rval;
long port;
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struct passwd *pw = NULL;
char *cp, *ep, homedir[MAXPATHLEN];
char *outfile = NULL;
int dumbterm;
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sp = getservbyname("ftp", "tcp");
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if (sp == 0)
ftpport = htons(FTP_PORT); /* good fallback */
else
ftpport = sp->s_port;
sp = getservbyname("http", "tcp");
if (sp == 0)
httpport = htons(HTTP_PORT); /* good fallback */
else
httpport = sp->s_port;
ftpproxy = getenv(FTP_PROXY);
httpproxy = getenv(HTTP_PROXY);
no_proxy = getenv(NO_PROXY);
gateport = 0;
cp = getenv("FTPSERVERPORT");
if (cp != NULL) {
port = strtol(cp, &ep, 10);
if (port < 1 || port > MAX_IN_PORT_T || *ep != '\0')
warnx("bad $FTPSERVERPORT port number: %s (ignored)",
cp);
else
gateport = htons(port);
}
if (gateport == 0) {
sp = getservbyname("ftpgate", "tcp");
if (sp == 0)
gateport = htons(GATE_PORT);
else
gateport = sp->s_port;
}
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doglob = 1;
interactive = 1;
autologin = 1;
passivemode = 1;
activefallback = 1;
preserve = 1;
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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verbose = 0;
progress = 0;
gatemode = 0;
#ifndef SMALL
editing = 0;
el = NULL;
hist = NULL;
#endif
mark = HASHBYTES;
marg_sl = sl_init();
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if ((tmpdir = getenv("TMPDIR")) == NULL)
tmpdir = _PATH_TMP;
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/* Set default operation mode based on FTPMODE environment variable */
if ((cp = getenv("FTPMODE")) != NULL) {
if (strcmp(cp, "passive") == 0) {
passivemode = 1;
activefallback = 0;
} else if (strcmp(cp, "active") == 0) {
passivemode = 0;
activefallback = 0;
} else if (strcmp(cp, "gate") == 0) {
gatemode = 1;
} else if (strcmp(cp, "auto") == 0) {
passivemode = 1;
activefallback = 1;
} else
warnx("unknown $FTPMODE '%s'; using defaults", cp);
}
if (strcmp(__progname, "pftp") == 0) {
passivemode = 1;
activefallback = 0;
} else if (strcmp(__progname, "gate-ftp") == 0)
gatemode = 1;
gateserver = getenv("FTPSERVER");
if (gateserver == NULL || *gateserver == '\0')
gateserver = GATE_SERVER;
if (gatemode) {
if (*gateserver == '\0') {
warnx(
"Neither $FTPSERVER nor $GATE_SERVER is defined; disabling gate-ftp");
gatemode = 0;
}
}
cp = getenv("TERM");
if (cp == NULL || strcmp(cp, "dumb") == 0)
dumbterm = 1;
else
dumbterm = 0;
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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fromatty = isatty(fileno(stdin));
ttyout = stdout;
if (isatty(fileno(ttyout))) {
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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verbose = 1; /* verbose if from a tty */
#ifndef SMALL
if (! dumbterm) {
editing = 1; /* editing mode on if tty is usable */
if (foregroundproc())
progress = 1; /* progress bar on if fg */
}
#endif
}
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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while ((ch = getopt(argc, argv, "Aadefgino:pP:r:tvV")) != -1) {
switch (ch) {
case 'A':
activefallback = 0;
passivemode = 0;
break;
case 'a':
anonftp = 1;
break;
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case 'd':
options |= SO_DEBUG;
debug++;
break;
case 'e':
#ifndef SMALL
editing = 0;
#endif
break;
case 'f':
flushcache = 1;
break;
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case 'g':
doglob = 0;
break;
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case 'i':
interactive = 0;
break;
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case 'n':
autologin = 0;
break;
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case 'o':
outfile = optarg;
if (strcmp(outfile, "-") == 0)
ttyout = stderr;
break;
case 'p':
passivemode = 1;
activefallback = 0;
break;
case 'P':
port = strtol(optarg, &ep, 10);
if (port < 1 || port > MAX_IN_PORT_T || *ep != '\0')
warnx("bad port number: %s (ignored)", optarg);
else
ftpport = htons((in_port_t)port);
break;
case 'r':
retry_connect = strtol(optarg, &ep, 10);
if (retry_connect < 1 || retry_connect > MAX_IN_PORT_T
|| *ep != '\0')
errx(1, "bad retry value: %s", optarg);
break;
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case 't':
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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trace = 1;
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break;
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case 'v':
progress = verbose = 1;
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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break;
case 'V':
progress = verbose = 0;
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break;
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default:
usage();
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}
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}
/* set line buffering on ttyout */
setvbuf(ttyout, NULL, _IOLBF, 0);
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argc -= optind;
argv += optind;
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cpend = 0; /* no pending replies */
proxy = 0; /* proxy not active */
crflag = 1; /* strip c.r. on ascii gets */
sendport = -1; /* not using ports */
/*
* Set up the home directory in case we're globbing.
*/
cp = getlogin();
if (cp != NULL) {
pw = getpwnam(cp);
}
if (pw == NULL)
pw = getpwuid(getuid());
if (pw != NULL) {
home = homedir;
(void)strcpy(home, pw->pw_dir);
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}
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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setttywidth(0);
(void)xsignal(SIGWINCH, setttywidth);
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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#ifdef __GNUC__ /* to shut up gcc warnings */
(void)&argc;
(void)&argv;
#endif
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if (argc > 0) {
if (strchr(argv[0], ':') != NULL) {
rval = auto_fetch(argc, argv, outfile);
if (rval >= 0) /* -1 == connected and cd-ed */
exit(rval);
} else {
char *xargv[5];
if (setjmp(toplevel))
exit(0);
(void)signal(SIGINT, (sig_t)intr);
(void)signal(SIGPIPE, (sig_t)lostpeer);
xargv[0] = __progname;
xargv[1] = argv[0];
xargv[2] = argv[1];
xargv[3] = argv[2];
xargv[4] = NULL;
do {
setpeer(argc+1, xargv);
if (!retry_connect)
break;
if (!connected) {
macnum = 0;
fprintf(ttyout,
"Retrying in %d seconds...\n",
retry_connect);
sleep(retry_connect);
}
} while (!connected);
retry_connect = 0; /* connected, stop hiding msgs */
}
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}
#ifndef SMALL
controlediting();
#endif /* !SMALL */
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top = setjmp(toplevel) == 0;
if (top) {
(void)signal(SIGINT, (sig_t)intr);
(void)signal(SIGPIPE, (sig_t)lostpeer);
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}
for (;;) {
cmdscanner(top);
top = 1;
}
}
void
intr()
{
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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alarmtimer(0);
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longjmp(toplevel, 1);
}
void
lostpeer()
{
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
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alarmtimer(0);
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if (connected) {
if (cout != NULL) {
(void)shutdown(fileno(cout), 1+1);
(void)fclose(cout);
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cout = NULL;
}
if (data >= 0) {
(void)shutdown(data, 1+1);
(void)close(data);
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data = -1;
}
connected = 0;
}
pswitch(1);
if (connected) {
if (cout != NULL) {
(void)shutdown(fileno(cout), 1+1);
(void)fclose(cout);
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cout = NULL;
}
connected = 0;
}
proxflag = 0;
pswitch(0);
}
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/*
* Generate a prompt
*/
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char *
prompt()
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{
return ("ftp> ");
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}
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/*
* Command parser.
*/
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void
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cmdscanner(top)
int top;
{
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struct cmd *c;
int num;
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if (!top
#ifndef SMALL
&& !editing
#endif /* !SMALL */
)
(void)putc('\n', ttyout);
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for (;;) {
#ifndef SMALL
if (!editing) {
#endif /* !SMALL */
if (fromatty) {
fputs(prompt(), ttyout);
(void)fflush(ttyout);
}
if (fgets(line, sizeof(line), stdin) == NULL)
quit(0, 0);
num = strlen(line);
if (num == 0)
break;
if (line[--num] == '\n') {
if (num == 0)
break;
line[num] = '\0';
} else if (num == sizeof(line) - 2) {
fputs("sorry, input line too long.\n", ttyout);
while ((num = getchar()) != '\n' && num != EOF)
/* void */;
break;
} /* else it was a line without a newline */
#ifndef SMALL
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
1997-02-01 13:44:54 +03:00
} else {
const char *buf;
HistEvent ev;
cursor_pos = NULL;
if ((buf = el_gets(el, &num)) == NULL || num == 0)
[Yet Another Huge Ftp Commit - hopefully the last for a while, barring any more little things people want added ...] New features: * progressmeter is now asynchronous, so "stalled" transfers can be detected. "- stalled -" is displayed instead of the ETA in this case. When the xfer resumes, the time that the xfer was stalled for is factored out of the ETA. It is debatable whether this is better than not factoring it out, but I like it this way (I.e, if it stalls for 8 seconds and the ETA was 30 seconds, when it resumes the ETA will still be 30 seconds). * verbosity can be disabled on the command line (-V), so that in auto-fetch mode the only lines displayed will be a description of the file, and the progress bar (if possible) * if the screen is resized (and detected via the SIGWINCH signal), the progress bar will rescale automatically. Bugs fixed: * progress bar will not use the last character on the line, as this can cause problems on some terminals * screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin * progressmeter() used some vars before initialising them * ^D will quit now. [fixes bin/3162] * use hstrerror() to generate error message for host name lookup failure. * use getcwd instead of getwd (it should have been OK, but why tempt fate?) * auto-fetch transfers will always return a positive exit value upon failure or interruption, relative to the file's position in argv[]. * remote completion of / will work, without putting a leading "///". This is actually a bug in ftpd(1), where "NLST /" prefixes all names with "//", but fixing every ftpd(1) is not an option...
1997-02-01 13:44:54 +03:00
quit(0, 0);
if (line[--num] == '\n') {
if (num == 0)
break;
} else if (num >= sizeof(line)) {
fputs("sorry, input line too long.\n", ttyout);
break;
}
memcpy(line, buf, num);
line[num] = '\0';
history(hist, &ev, H_ENTER, buf);
}
#endif /* !SMALL */
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makeargv();
if (margc == 0)
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continue;
c = getcmd(margv[0]);
if (c == (struct cmd *)-1) {
fputs("?Ambiguous command.\n", ttyout);
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continue;
}
if (c == NULL) {
#if !defined(SMALL)
/*
* attempt to el_parse() unknown commands.
* any command containing a ':' would be parsed
* as "[prog:]cmd ...", and will result in a
* false positive if prog != "ftp", so treat
* such commands as invalid.
*/
if (strchr(margv[0], ':') != NULL ||
el_parse(el, margc, margv) != 0)
#endif /* !SMALL */
fputs("?Invalid command.\n", ttyout);
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continue;
}
if (c->c_conn && !connected) {
fputs("Not connected.\n", ttyout);
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continue;
}
confirmrest = 0;
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(*c->c_handler)(margc, margv);
if (bell && c->c_bell)
(void)putc('\007', ttyout);
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if (c->c_handler != help)
break;
}
(void)signal(SIGINT, (sig_t)intr);
(void)signal(SIGPIPE, (sig_t)lostpeer);
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}
struct cmd *
getcmd(name)
const char *name;
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{
const char *p, *q;
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struct cmd *c, *found;
int nmatches, longest;
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if (name == NULL)
return (0);
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longest = 0;
nmatches = 0;
found = 0;
for (c = cmdtab; (p = c->c_name) != NULL; c++) {
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for (q = name; *q == *p++; q++)
if (*q == 0) /* exact match? */
return (c);
if (!*q) { /* the name was a prefix */
if (q - name > longest) {
longest = q - name;
nmatches = 1;
found = c;
} else if (q - name == longest)
nmatches++;
}
}
if (nmatches > 1)
return ((struct cmd *)-1);
return (found);
}
/*
* Slice a string up into argc/argv.
*/
int slrflag;
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void
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makeargv()
{
char *argp;
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stringbase = line; /* scan from first of buffer */
argbase = argbuf; /* store from first of buffer */
slrflag = 0;
marg_sl->sl_cur = 0; /* reset to start of marg_sl */
for (margc = 0; ; margc++) {
argp = slurpstring();
sl_add(marg_sl, argp);
if (argp == NULL)
break;
}
#ifndef SMALL
if (cursor_pos == line) {
cursor_argc = 0;
cursor_argo = 0;
} else if (cursor_pos != NULL) {
cursor_argc = margc;
cursor_argo = strlen(margv[margc-1]);
}
#endif /* !SMALL */
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}
#ifdef SMALL
#define INC_CHKCURSOR(x) (x)++
#else /* !SMALL */
#define INC_CHKCURSOR(x) { (x)++ ; \
if (x == cursor_pos) { \
cursor_argc = margc; \
cursor_argo = ap-argbase; \
cursor_pos = NULL; \
} }
#endif /* !SMALL */
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/*
* Parse string into argbuf;
* implemented with FSM to
* handle quoting and strings
*/
char *
slurpstring()
{
int got_one = 0;
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char *sb = stringbase;
char *ap = argbase;
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char *tmp = argbase; /* will return this if token found */
if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
switch (slrflag) { /* and $ as token for macro invoke */
case 0:
slrflag++;
INC_CHKCURSOR(stringbase);
1993-03-21 12:45:37 +03:00
return ((*sb == '!') ? "!" : "$");
/* NOTREACHED */
case 1:
slrflag++;
altarg = stringbase;
break;
default:
break;
}
}
S0:
switch (*sb) {
case '\0':
goto OUT;
case ' ':
case '\t':
INC_CHKCURSOR(sb);
goto S0;
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default:
switch (slrflag) {
case 0:
slrflag++;
break;
case 1:
slrflag++;
altarg = sb;
break;
default:
break;
}
goto S1;
}
S1:
switch (*sb) {
case ' ':
case '\t':
case '\0':
goto OUT; /* end of token */
case '\\':
INC_CHKCURSOR(sb);
goto S2; /* slurp next character */
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case '"':
INC_CHKCURSOR(sb);
goto S3; /* slurp quoted string */
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default:
*ap = *sb; /* add character to token */
ap++;
INC_CHKCURSOR(sb);
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got_one = 1;
goto S1;
}
S2:
switch (*sb) {
case '\0':
goto OUT;
default:
*ap = *sb;
ap++;
INC_CHKCURSOR(sb);
1993-03-21 12:45:37 +03:00
got_one = 1;
goto S1;
}
S3:
switch (*sb) {
case '\0':
goto OUT;
case '"':
INC_CHKCURSOR(sb);
goto S1;
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default:
*ap = *sb;
ap++;
INC_CHKCURSOR(sb);
1993-03-21 12:45:37 +03:00
got_one = 1;
goto S3;
}
OUT:
if (got_one)
*ap++ = '\0';
argbase = ap; /* update storage pointer */
stringbase = sb; /* update scan pointer */
if (got_one) {
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return (tmp);
1993-03-21 12:45:37 +03:00
}
switch (slrflag) {
case 0:
slrflag++;
break;
case 1:
slrflag++;
altarg = NULL;
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break;
default:
break;
}
return (NULL);
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}
/*
* Help command.
* Call each command handler with argc == 0 and argv[0] == name.
*/
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void
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help(argc, argv)
int argc;
char *argv[];
{
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struct cmd *c;
1993-03-21 12:45:37 +03:00
if (argc == 1) {
StringList *buf;
buf = sl_init();
fprintf(ttyout,
"%sommands may be abbreviated. Commands are:\n\n",
proxy ? "Proxy c" : "C");
for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
if (c->c_name && (!proxy || c->c_proxy))
sl_add(buf, c->c_name);
list_vertical(buf);
sl_free(buf, 0);
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return;
}
#define HELPINDENT ((int) sizeof("disconnect"))
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while (--argc > 0) {
1994-08-25 07:47:50 +04:00
char *arg;
1993-03-21 12:45:37 +03:00
arg = *++argv;
c = getcmd(arg);
if (c == (struct cmd *)-1)
fprintf(ttyout, "?Ambiguous help command %s\n", arg);
else if (c == NULL)
fprintf(ttyout, "?Invalid help command %s\n", arg);
1993-03-21 12:45:37 +03:00
else
fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1993-03-21 12:45:37 +03:00
c->c_name, c->c_help);
}
}
void
usage()
{
(void)fprintf(stderr,
"usage: %s [-AadeginptvV] [-r retry] [-P port] [host [port]]\n"
" %s [-f] [-o outfile] file:///file\n"
" %s [-f] [-o outfile] ftp://[user[:pass]@]host[:port]/path[/]\n"
" %s [-f] [-o outfile] http://host[:port]/path\n"
" %s [-f] [-o outfile] host:path[/]\n",
__progname, __progname, __progname, __progname, __progname);
exit(1);
}