www.pudn.com > socks5.zip > cmds.c
/* Copyright (c) 1985, 1989 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. */
/* FTP User Program -- Command Routines. */
#include "ftp_var.h"
#define DONT_NEED_SIGBLOCK
#define DONT_NEED_SIGPAUSE
#define DONT_NEED_SIGUNBLOCK
#define DONT_NEED_SIGPENDING
#include "sigfix.h"
#include
#include
#include "pathnames.h"
#ifndef HAVE_GETCWD
extern char *getwd();
#endif
extern int command();
extern char *home;
extern char *globerr;
extern char **ftpglob();
extern char *remglob();
extern int errno;
extern off_t restart_point;
extern char reply_string[];
char *mname;
jmp_buf jabort;
char *dotrans(), *domap();
/*
* Options and other state info.
*/
int trace; /* trace packets exchanged */
int hash; /* print # for each buffer transferred */
int sendport; /* use PORT cmd for each data connection */
int verbose; /* print messages coming back from server */
int connected; /* connected to server */
int fromatty; /* input is from a terminal */
int interactive; /* interactively prompt on m* cmds */
int debug; /* debugging level */
int bell; /* ring bell on cmd completion */
int doglob; /* glob local file names */
int autologin; /* establish user account on connection */
int proxy; /* proxy server connection active */
int proxflag; /* proxy connection exists */
int sunique; /* store files on server with unique name */
int runique; /* store local files with unique name */
int mcase; /* map upper to lower case for mget names */
int ntflag; /* use ntin ntout tables for name translation */
int mapflag; /* use mapin mapout templates on file names */
int code; /* return/reply code for ftp command */
int crflag; /* if 1, strip car. rets. on ascii gets */
char pasv[64]; /* passive port for proxy data connection */
char *altarg; /* argv[1] with no shell-like preprocessing */
char ntin[17]; /* input translation table */
char ntout[17]; /* output translation table */
char mapin[MAXPATHLEN]; /* input map template */
char mapout[MAXPATHLEN]; /* output map template */
char typename[32]; /* name of file transfer type */
int type; /* requested file transfer type */
int curtype; /* current file transfer type */
char structname[32]; /* name of file transfer structure */
int stru; /* file transfer structure */
char formname[32]; /* name of file transfer format */
int form; /* file transfer format */
char modename[32]; /* name of file transfer mode */
int mode; /* file transfer mode */
char bytename[32]; /* local byte size in ascii */
int bytesize; /* local byte size in binary */
char *hostname; /* name of host connected to */
int unix_server; /* server is unix, can use binary for ascii */
int unix_proxy; /* proxy is unix, can use binary for ascii */
struct servent *sp; /* service spec for tcp/ftp */
int ftp_s_port; /* save ftp's sp->s_port value here */
char line[200]; /* input line buffer */
char *stringbase; /* current scan point in line buffer */
char argbuf[200]; /* argument storage buffer */
char *argbase; /* current storage point in arg buffer */
int margc; /* count of arguments on input line */
char *margv[20]; /* args parsed from input line */
int cpend; /* flag: if != 0, then pending server reply */
int mflag; /* flag: if != 0, then active multi command */
int options; /* used during socket creation */
jmp_buf toplevel; /* non-local goto stuff for cmd scanner */
int macnum; /* number of defined macros */
struct macel macros[16];
char macbuf[4096];
/* `Another' gets another argument, and stores the new argc and argv. */
/* It reverts to the top level (via main.c's intr()) on EOF/error. */
/* Returns false if no new arguments have been added. */
int another(int *pargc, char ***pargv, char *prompt) {
int len = strlen(line), ret;
extern sig_t intr();
if (len >= sizeof(line) - 3) {
printf("sorry, arguments too long\n");
intr();
}
printf("(%s) ", prompt);
line[len++] = ' ';
if (fgets(&line[len], sizeof(line) - len, stdin) == NULL) intr();
len += strlen(&line[len]);
if (len > 0 && line[len - 1] == '\n') line[len - 1] = '\0';
makeargv();
ret = margc > *pargc;
*pargc = margc;
*pargv = margv;
return ret;
}
/* Connect to peer server and auto-login, if possible. */
void setpeer(int argc, char *argv[]) {
char *host, *hookup();
short port;
if (connected) {
printf("Already connected to %s, use close first.\n", hostname);
code = -1;
return;
}
if (argc < 2)
another(&argc, &argv, "to");
if (argc < 2 || argc > 3) {
printf("usage: %s host-name [port]\n", argv[0]);
code = -1;
return;
}
/* port = sp->s_port; */
port = ftp_s_port;
if (argc > 2) {
port = atoi(argv[2]);
if (port <= 0) {
printf("%s: bad port number-- %s\n", argv[1], argv[2]);
printf ("usage: %s host-name [port]\n", argv[0]);
code = -1;
return;
}
port = htons(port);
}
host = hookup(argv[1], port);
if (host) {
#if NBBY == 8
int overbose;
#endif
connected = 1;
/* Set up defaults for FTP. */
strcpy(typename, "ascii"), type = TYPE_A;
curtype = TYPE_A;
strcpy(formname, "non-print"), form = FORM_N;
strcpy(modename, "stream"), mode = MODE_S;
strcpy(structname, "file"), stru = STRU_F;
strcpy(bytename, "8"), bytesize = 8;
if (autologin)
login(argv[1]);
#if NBBY == 8
/* this ifdef is to keep someone form "porting" this to an */
/* incompatible system and not checking this out. This way they have */
/* to think about it. */
overbose = verbose;
if (debug == 0)
verbose = -1;
if (command("SYST") == COMPLETE && overbose) {
register char *cp, c;
cp = index(reply_string+4, ' ');
if (cp == NULL) cp = index(reply_string+4, '\r');
if (cp) {
if (cp[-1] == '.') cp--;
c = *cp;
*cp = '\0';
}
printf("Remote system type is %s.\n", reply_string+4);
if (cp) *cp = c;
}
if (!strncmp(reply_string, "215 UNIX Type: L8", 17)) {
if (proxy) unix_proxy = 1;
else unix_server = 1;
/* Set type to 0 (not specified by user), meaning binary by */
/* default, but don't bother telling server. We can use binary */
/* for text files unless changed by the user. */
type = 0;
strcpy(typename, "binary");
if (overbose)
printf("Using %s mode to transfer files.\n", typename);
} else {
if (proxy) unix_proxy = 0;
else unix_server = 0;
if (overbose && !strncmp(reply_string, "215 TOPS20", 10))
printf("Remember to set tenex mode when transfering binary files from this machine.\n");
}
verbose = overbose;
#endif
}
}
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, NULL, 0, NULL }
};
/* Set transfer type. */
void settype(int argc, char *argv[]) {
register 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 = " | ";
}
printf(" ]\n");
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) {
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(int newtype, int show) {
register 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) {
printf("ftp: internal error: unknown type %d\n", 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. */
void setbinary() {
stype[1] = "binary";
settype(2, stype);
}
/* Set ascii transfer type. */
void setascii() {
stype[1] = "ascii";
settype(2, stype);
}
/* Set tenex transfer type. */
void settenex() {
stype[1] = "tenex";
settype(2, stype);
}
/* Set file transfer mode. */
void setftpmode(int argc, char *argv[]) {
printf("We only support %s mode, sorry.\n", modename);
code = -1;
}
/* Set file transfer format. */
void setform(int argc, char *argv[]) {
printf("We only support %s format, sorry.\n", formname);
code = -1;
}
/* Set file transfer structure. */
void setstruct(int argc, char *argv[]) {
printf("We only support %s structure, sorry.\n", structname);
code = -1;
}
/* Glob a local file name specification with the expectation of a single */
/* return value. Can't control multiple values being expanded from the */
/* expression, we return only the first. */
int globulize(char **cpp) {
char **globbed;
if (!doglob) return (1);
globbed = ftpglob(*cpp);
if (globerr != NULL) {
printf("%s: %s\n", *cpp, globerr);
if (globbed) {
blkfree(globbed);
free((char *)globbed);
}
return 0;
}
if (globbed) {
*cpp = *globbed++;
/* don't waste too much memory */
if (*globbed) {
blkfree(globbed);
free((char *)globbed);
}
}
return 1;
}
/* Send a single file. */
void put(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")) {
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);
}
int confirm(char *cmd, char *file) {
char bline[BUFSIZ];
if (!interactive) return (1);
printf("%s %s? ", cmd, file);
fflush(stdout);
if (fgets(bline, sizeof(bline), stdin) == NULL) return (0);
return (*bline != 'n' && *bline != 'N');
}
/* Send multiple files. */
void mabort() {
int ointer;
extern jmp_buf jabort;
printf("\n");
fflush(stdout);
if (mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", mname)) {
interactive = ointer;
longjmp(jabort,0);
}
interactive = ointer;
}
mflag = 0;
longjmp(jabort,0);
}
void mput(int argc, char **argv) {
extern jmp_buf jabort;
register int i;
sig_t oldintr;
int ointer;
char *tp;
void mabort();
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 = (sig_t)Signal(SIGINT, mabort);
setjmp(jabort);
if (proxy) {
char *cp, *tp2, tmpbuf[MAXPATHLEN];
while ((cp = remglob(argv,0)) != NULL) {
if (*cp == 0) {
mflag = 0;
continue;
}
if (mflag && confirm(argv[0], cp)) {
tp = cp;
if (mcase) {
while (*tp && !islower(*tp)) {
tp++;
}
if (!*tp) {
tp = cp;
tp2 = tmpbuf;
while ((*tp2 = *tp)) {
if (isupper(*tp2)) {
*tp2 = 'a' + *tp2 - 'A';
}
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;
}
}
}
Signal(SIGINT, oldintr);
mflag = 0;
return;
}
for (i = 1; i < argc; i++) {
register char **cpp, **gargs;
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;
}
gargs = ftpglob(argv[i]);
if (globerr != NULL) {
printf("%s\n", globerr);
if (gargs) {
blkfree(gargs);
free((char *)gargs);
}
continue;
}
for (cpp = gargs; 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;
}
}
}
if (gargs != NULL) {
blkfree(gargs);
free((char *)gargs);
}
}
Signal(SIGINT, oldintr);
mflag = 0;
}
/* Receive one file. */
int getit(int argc, char *argv[], int restartit, 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")) {
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(*tp)) tp++;
if (!*tp) {
tp = argv[2];
tp2 = tmpbuf;
while ((*tp2 = *tp)) {
if (isupper(*tp2)) *tp2 = tolower(*tp2);
tp2++;
tp++;
}
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) {
fprintf(stderr, "local: %s: %s\n", argv[2],
strerror(errno));
return (0);
}
restart_point = stbuf.st_size;
} else {
if (ret == 0) {
int overbose;
overbose = verbose;
if (debug == 0)
verbose = -1;
if (command("MDTM %s", argv[1]) == COMPLETE) {
int yy, mo, day, hour, min, sec;
struct tm *tm;
verbose = overbose;
sscanf(reply_string,
"%*s %04d%02d%02d%02d%02d%02d",
&yy, &mo, &day, &hour, &min, &sec);
tm = gmtime(&stbuf.st_mtime);
tm->tm_mon++;
if (tm->tm_year > yy%100)
return (1);
else if (tm->tm_year == yy%100) {
if (tm->tm_mon > mo)
return (1);
} else if (tm->tm_mon == mo) {
if (tm->tm_mday > day)
return (1);
} else if (tm->tm_mday == day) {
if (tm->tm_hour > hour)
return (1);
} else if (tm->tm_hour == hour) {
if (tm->tm_min > min)
return (1);
} else if (tm->tm_min == min) {
if (tm->tm_sec > sec)
return (1);
}
} else {
printf("%s\n", reply_string);
verbose = overbose;
return (0);
}
}
}
}
recvrequest("RETR", argv[2], argv[1], mode,
argv[1] != oldargv1 || argv[2] != oldargv2);
restart_point = 0;
return (0);
}
void reget(int argc, char *argv[]) {
getit(argc, argv, 1, "r+w");
}
void get(int argc, char *argv[]){
getit(argc, argv, 0, restart_point ? "r+w" : "w" );
}
/* Get multiple files. */
void mget(int argc, char **argv) {
extern jmp_buf jabort;
sig_t oldintr;
int ointer;
char *cp, *tp, *tp2, tmpbuf[MAXPATHLEN];
void mabort();
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 = (sig_t)Signal(SIGINT,mabort);
setjmp(jabort);
while ((cp = remglob(argv,proxy)) != NULL) {
if (*cp == '\0') {
mflag = 0;
continue;
}
if (mflag && confirm(argv[0], cp)) {
tp = cp;
if (mcase) {
while (*tp && !islower(*tp)) {
tp++;
}
if (!*tp) {
tp = cp;
tp2 = tmpbuf;
while ((*tp2 = *tp)) {
if (isupper(*tp2)) *tp2 = tolower(*tp2);
tp2++;
tp++;
}
}
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;
}
}
}
Signal(SIGINT,oldintr);
mflag = 0;
}
char *remglob(char *argv[], int doswitch) {
char temp[16];
static char buf[MAXPATHLEN];
static FILE *ftemp = NULL;
static char **args;
int oldverbose, oldhash;
char *cp, *mode;
if (!mflag) {
if (!doglob) {
args = NULL;
}
else {
if (ftemp) {
fclose(ftemp);
ftemp = NULL;
}
}
return(NULL);
}
if (!doglob) {
if (args == NULL)
args = argv;
if ((cp = *++args) == NULL)
args = NULL;
return (cp);
}
if (ftemp == NULL) {
strcpy(temp, _PATH_TMP);
mktemp(temp);
oldverbose = verbose, verbose = 0;
oldhash = hash, hash = 0;
if (doswitch) {
pswitch(!proxy);
}
for (mode = "w"; *++argv != NULL; mode = "a")
recvrequest ("NLST", temp, *argv, mode, 0);
if (doswitch) {
pswitch(!proxy);
}
verbose = oldverbose; hash = oldhash;
ftemp = fopen(temp, "r");
unlink(temp);
if (ftemp == NULL) {
printf("can't find list of remote files, oops\n");
return (NULL);
}
}
if (fgets(buf, sizeof (buf), ftemp) == NULL) {
fclose(ftemp), ftemp = NULL;
return (NULL);
}
if ((cp = index(buf, '\n')) != NULL)
*cp = '\0';
return (buf);
}
char *onoff(int bool) {
return (bool ? "on" : "off");
}
/* Show status. */
/* */
/* ARGSUSED */
void status(int argc, char *argv[]) {
int i;
if (connected) {
printf("Connected to %s.\n", hostname);
} else {
printf("Not connected.\n");
}
if (!proxy) {
pswitch(1);
if (connected) {
printf("Connected for proxy commands to %s.\n", hostname);
} else {
printf("No proxy connection.\n");
}
pswitch(0);
}
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("Case: %s; CR stripping: %s\n",onoff(mcase),onoff(crflag));
if (ntflag) {
printf("Ntrans: (in) %s (out) %s\n", ntin,ntout);
} else {
printf("Ntrans: off\n");
}
if (mapflag) {
printf("Nmap: (in) %s (out) %s\n", mapin, mapout);
} else {
printf("Nmap: off\n");
}
printf("Hash mark printing: %s; Use of PORT cmds: %s\n",
onoff(hash), onoff(sendport));
if (macnum > 0) {
printf("Macros:\n");
for (i=0; i 1) {
val = atoi(argv[1]);
if (val < 0) {
printf("%s: bad debugging value.\n", argv[1]);
code = -1;
return;
}
} else
val = !debug;
debug = val;
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(int argc, char **argv) {
if (argc < 2 && !another(&argc, &argv, "remote-directory")) {
printf("usage: %s remote-directory\n", argv[0]);
code = -1;
return;
}
if (command("CWD %s", argv[1]) == ERROR && code == 500) {
if (verbose) printf("CWD command not recognized, trying XCWD\n");
command("XCWD %s", argv[1]);
}
}
/* Set current working directory on local machine. */
void lcd(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) {
fprintf(stderr, "local: %s: %s\n", argv[1], strerror(errno));
code = -1;
return;
}
#ifdef HAVE_GETCWD
printf("Local directory now %s\n", getcwd(buf, MAXPATHLEN-1));
#else
printf("Local directory now %s\n", getwd(buf));
#endif
code = 0;
}
/* Delete a single file. */
void delete(int argc, char *argv[]) {
if (argc < 2 && !another(&argc, &argv, "remote-file")) {
printf("usage: %s remote-file\n", argv[0]);
code = -1;
return;
}
command("DELE %s", argv[1]);
}
/* Delete multiple files. */
void mdelete(int argc, char *argv[]) {
extern jmp_buf jabort;
sig_t oldintr;
int ointer;
char *cp;
void mabort();
if (argc < 2 && !another(&argc, &argv, "remote-files")) {
printf("usage: %s remote-files\n", argv[0]);
code = -1;
return;
}
mflag = 1;
mname = argv[0];
oldintr = (sig_t)Signal(SIGINT, mabort);
setjmp(jabort);
while ((cp = remglob(argv,0)) != NULL) {
if (*cp == '\0') {
mflag = 0;
continue;
}
if (mflag && confirm(argv[0], cp)) {
command("DELE %s", cp);
if (!mflag && fromatty) {
ointer = interactive;
interactive = 1;
if (confirm("Continue with", "mdelete")) {
mflag++;
}
interactive = ointer;
}
}
}
Signal(SIGINT, oldintr);
mflag = 0;
}
/* Rename a remote file. */
void renamefile(int argc, char *argv[]) {
if (argc < 2 && !another(&argc, &argv, "from-name"))
goto usage;
if (argc < 3 && !another(&argc, &argv, "to-name")) {
usage:
printf("%s from-name to-name\n", argv[0]);
code = -1;
return;
}
if (command("RNFR %s", argv[1]) == CONTINUE)
command("RNTO %s", argv[2]);
}
/* Get a directory listing */
/* of remote files. */
void ls(int argc, char *argv[]) {
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 = argv[0][0] == 'n' ? "NLST" : "LIST";
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);
}
/* Get a directory listing */
/* of multiple remote files. */
void mls(int argc, char **argv) {
extern jmp_buf jabort;
sig_t oldintr;
int ointer, i;
char *cmd, mode[1], *dest;
void mabort();
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 = argv[0][1] == 'l' ? "NLST" : "LIST";
mname = argv[0];
mflag = 1;
oldintr = (sig_t)Signal(SIGINT, mabort);
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;
}
}
Signal(SIGINT, oldintr);
mflag = 0;
}
/* Do a shell escape */
/* */
/* ARGSUSED */
int shell(int argc, char **argv) {
int pid;
sig_t old1, old2;
char shellnam[40], *shell, *namep;
int status;
old1 = (sig_t)Signal (SIGINT, SIG_IGN);
old2 = (sig_t)Signal (SIGQUIT, SIG_IGN);
if ((pid = fork()) == 0) {
for (pid = 3; pid < 20; pid++)
close(pid);
Signal(SIGINT, SIG_DFL);
Signal(SIGQUIT, SIG_DFL);
shell = getenv("SHELL");
if (shell == NULL)
shell = _PATH_BSHELL;
namep = rindex(shell,'/');
if (namep == NULL)
namep = shell;
strcpy(shellnam,"-");
strcat(shellnam, ++namep);
if (strcmp(namep, "sh") != 0)
shellnam[0] = '+';
if (debug) {
printf ("%s\n", shell);
fflush (stdout);
}
if (argc > 1) {
execl(shell,shellnam,"-c",altarg,(char *)0);
}
else {
execl(shell,shellnam,(char *)0);
}
perror(shell);
code = -1;
exit(1);
}
if (pid > 0)
while (wait(&status) != pid) ;
Signal(SIGINT, old1);
Signal(SIGQUIT, old2);
if (pid == -1) {
perror("Try again later");
code = -1;
}
else {
code = 0;
}
return (0);
}
/* Send new user information (re-login) */
int user(int argc, char **argv) {
char acct[80], *getpass();
int n, aflag = 0;
if (argc < 2) {
another(&argc, &argv, "username");
}
if (argc < 2 || argc > 4) {
printf("usage: %s username [password] [account]\n", argv[0]);
code = -1;
return (0);
}
if ((n = command("USER %s", argv[1])) == CONTINUE) {
if (argc < 3 ){
if (!strcmp(argv[1], "anonymous") || !strcmp(argv[1], "ftp")) {
printf("Password: "); fflush(stdout);
fgets(acct, sizeof(acct) - 1, stdin);
acct[strlen(acct) - 1] = '\0';
argv[2] = acct;
} else
argv[2] = getpass("Password: ");
argc++;
}
n = command("PASS %s", argv[2]);
}
if (n == CONTINUE) {
if (argc < 4) {
printf("Account: "); fflush(stdout);
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) {
fprintf(stdout, "Login failed.\n");
return (0);
}
if (!aflag && argc == 4) {
command("ACCT %s", argv[3]);
}
return (1);
}
/* Print working directory. */
/* */
/* VARARGS */
void pwd() {
int oldverbose = verbose;
/* If we aren't verbose, this doesn't do anything! */
verbose = 1;
if (command("PWD") == ERROR && code == 500) {
printf("PWD command not recognized, trying XPWD\n");
command("XPWD");
}
verbose = oldverbose;
}
/* Make a directory. */
void makedir(int argc, char *argv[]) {
if (argc < 2 && !another(&argc, &argv, "directory-name")) {
printf("usage: %s directory-name\n", argv[0]);
code = -1;
return;
}
if (command("MKD %s", argv[1]) == ERROR && code == 500) {
if (verbose)
printf("MKD command not recognized, trying XMKD\n");
command("XMKD %s", argv[1]);
}
}
/* Remove a directory. */
void removedir(int argc, char *argv[]) {
if (argc < 2 && !another(&argc, &argv, "directory-name")) {
printf("usage: %s directory-name\n", argv[0]);
code = -1;
return;
}
if (command("RMD %s", argv[1]) == ERROR && code == 500) {
if (verbose)
printf("RMD command not recognized, trying XRMD\n");
command("XRMD %s", argv[1]);
}
}
/* 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(char *initial, int argc, char **argv) {
register int i, len;
char buf[BUFSIZ]; /* must be >= sizeof(line) */
strcpy(buf, initial);
if (argc > 1) {
len = strlen(buf);
len += strlen(strcpy(&buf[len], argv[1]));
for (i = 2; i < argc; i++) {
buf[len++] = ' ';
len += strlen(strcpy(&buf[len], argv[i]));
}
}
if (command(buf) == PRELIM) {
while (getreply(0) == PRELIM);
}
}
/* Send a line, verbatim, to the remote machine. */
void quote(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(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);
}
void do_chmod(int argc, char *argv[]) {
if (argc < 2 && !another(&argc, &argv, "mode"))
goto usage;
if (argc < 3 && !another(&argc, &argv, "file-name")) {
usage:
printf("usage: %s mode file-name\n", argv[0]);
code = -1;
return;
}
command("SITE CHMOD %s %s", argv[1], argv[2]);
}
void do_umask(int argc, char *argv[]) {
int oldverbose = verbose;
verbose = 1;
command(argc == 1 ? "SITE UMASK" : "SITE UMASK %s", argv[1]);
verbose = oldverbose;
}
void idletime(int argc, char *argv[]) {
int oldverbose = verbose;
verbose = 1;
command(argc == 1 ? "SITE IDLE" : "SITE IDLE %s", argv[1]);
verbose = oldverbose;
}
/* Ask the other side for help. */
void rmthelp(int argc, char *argv[]) {
int oldverbose = verbose;
verbose = 1;
command(argc == 1 ? "HELP" : "HELP %s", argv[1]);
verbose = oldverbose;
}
/* Terminate session, but don't exit. */
void disconnect() {
extern FILE *cout;
extern int data;
if (!connected)
return;
command("QUIT");
if (cout) {
fclose(cout);
}
cout = NULL;
connected = 0;
data = -1;
if (!proxy) {
macnum = 0;
}
}
/* Terminate session and exit. */
/* */
/* VARARGS */
int quit() {
if (connected) disconnect();
pswitch(1);
if (connected) disconnect();
exit(0);
return -1;
}
void fatal(char *msg) {
fprintf(stderr, "ftp: %s\n", msg);
exit(1);
}
void account(int argc, char **argv) {
char acct[50], *getpass(), *ap;
if (argc > 1) {
++argv;
--argc;
strncpy(acct,*argv,49);
acct[49] = '\0';
while (argc > 1) {
--argc;
++argv;
strncat(acct,*argv, 49-strlen(acct));
}
ap = acct;
}
else {
ap = getpass("Account:");
}
command("ACCT %s", ap);
}
jmp_buf abortprox;
void proxabort() {
extern int proxy;
if (!proxy) {
pswitch(1);
}
if (connected) {
proxflag = 1;
}
else {
proxflag = 0;
}
pswitch(0);
longjmp(abortprox,1);
}
void doproxy(int argc, char *argv[]) {
extern jmp_buf abortprox;
register struct cmd *c;
struct cmd *getcmd();
sig_t oldintr;
void proxabort();
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) {
printf("?Ambiguous command\n");
fflush(stdout);
code = -1;
return;
}
if (c == 0) {
printf("?Invalid command\n");
fflush(stdout);
code = -1;
return;
}
if (!c->c_proxy) {
printf("?Invalid proxy command\n");
fflush(stdout);
code = -1;
return;
}
if (setjmp(abortprox)) {
code = -1;
return;
}
oldintr = (sig_t)Signal(SIGINT, proxabort);
pswitch(1);
if (c->c_conn && !connected) {
printf("Not connected\n");
fflush(stdout);
pswitch(0);
Signal(SIGINT, oldintr);
code = -1;
return;
}
(*c->c_handler)(argc-1, argv+1);
if (connected) {
proxflag = 1;
}
else {
proxflag = 0;
}
pswitch(0);
Signal(SIGINT, oldintr);
}
void setcase() {
mcase = !mcase;
printf("Case mapping %s.\n", onoff(mcase));
code = mcase;
}
void setcr() {
crflag = !crflag;
printf("Carriage Return stripping %s.\n", onoff(crflag));
code = crflag;
}
void setntrans(int argc, char *argv[]) {
if (argc == 1) {
ntflag = 0;
printf("Ntrans off.\n");
code = ntflag;
return;
}
ntflag++;
code = ntflag;
strncpy(ntin, argv[1], 16);
ntin[16] = '\0';
if (argc == 2) {
ntout[0] = '\0';
return;
}
strncpy(ntout, argv[2], 16);
ntout[16] = '\0';
}
char *
dotrans(char *name)
{
static char new[MAXPATHLEN];
char *cp1, *cp2 = new;
register int i, ostop, found;
for (ostop = 0; *(ntout + ostop) && ostop < 16; ostop++);
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(int argc, char *argv[]) {
char *cp;
if (argc == 1) {
mapflag = 0;
printf("Nmap off.\n");
code = mapflag;
return;
}
if (argc < 3 && !another(&argc, &argv, "mapout")) {
printf("Usage: %s [mapin mapout]\n",argv[0]);
code = -1;
return;
}
mapflag = 1;
code = 1;
cp = index(altarg, ' ');
if (proxy) {
while(*++cp == ' ');
altarg = cp;
cp = index(altarg, ' ');
}
*cp = '\0';
strncpy(mapin, altarg, MAXPATHLEN - 1);
while (*++cp == ' ');
strncpy(mapout, cp, MAXPATHLEN - 1);
}
char *domap(char *name) {
static char new[MAXPATHLEN];
register 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(*(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 == '$' && isdigit(*(cp2+1))) {
if (*++cp2 == '0') {
char *cp3 = name;
while (*cp3) {
*cp1++ = *cp3++;
}
} else if (toks[toknum = *cp2 - '1']) {
char *cp3=tp[toknum];
while (cp3 != te[toknum]) {
*cp1++ = *cp3++;
}
}
} else if (*cp2) {
*cp1++ = *cp2++;
}
}
if (!*cp2) {
printf("nmap: unbalanced brackets\n");
return(name);
}
match = 1;
cp2--;
}
if (match) {
while (*++cp2 && *cp2 != ']') {
if (*cp2 == '\\' && *(cp2 + 1)) {
cp2++;
}
}
if (!*cp2) {
printf("nmap: unbalanced brackets\n");
return(name);
}
break;
}
switch (*++cp2) {
case ',':
goto LOOP;
case ']':
break;
default:
cp2--;
goto LOOP;
}
break;
case '$':
if (isdigit(*(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 setsunique() {
sunique = !sunique;
printf("Store unique %s.\n", onoff(sunique));
code = sunique;
}
void setrunique() {
runique = !runique;
printf("Receive unique %s.\n", onoff(runique));
code = runique;
}
/* change directory to perent directory */
void cdup() {
if (command("CDUP") == ERROR && code == 500) {
if (verbose) printf("CDUP command not recognized, trying XCUP\n");
command("XCUP");
}
}
/* restart transfer at specific point */
void restart(int argc, char *argv[]) {
extern long atol();
if (argc != 2) {
printf("restart: offset not specified\n");
} else {
restart_point = atol(argv[1]);
printf("restarting at %ld. execute get, put or append to initiate transfer\n", (long)restart_point);
}
}
/* show remote system type */
void syst() {
command("SYST");
}
void macdef(int argc, char *argv[]) {
char *tmp;
int c;
if (macnum == 16) {
printf("Limit of 16 macros have already been defined\n");
code = -1;
return;
}
if (argc < 2 && !another(&argc, &argv, "macro name")) {
printf("Usage: %s macro_name\n",argv[0]);
code = -1;
return;
}
if (interactive) {
printf("Enter macro line by line, terminating it with a null line\n");
}
strncpy(macros[macnum].mac_name, argv[1], 8);
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) {
printf("macdef:end of file encountered\n");
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') {
printf("Macro not defined - 4k buffer exceeded\n");
code = -1;
return;
}
}
}
/* get size of file on remote machine */
void sizecmd(int argc, char *argv[]) {
if (argc < 2 && !another(&argc, &argv, "filename")) {
printf("usage: %s filename\n", argv[0]);
code = -1;
return;
}
command("SIZE %s", argv[1]);
}
/* get last modification time of file on remote machine */
void modtime(int argc, char *argv[]) {
int overbose;
if (argc < 2 && !another(&argc, &argv, "filename")) {
printf("usage: %s filename\n", argv[0]);
code = -1;
return;
}
overbose = verbose;
if (debug == 0) {
verbose = -1;
}
if (command("MDTM %s", argv[1]) == COMPLETE) {
int yy, mo, day, hour, min, sec;
sscanf(reply_string, "%*s %04d%02d%02d%02d%02d%02d", &yy, &mo, &day, &hour, &min, &sec);
/* might want to print this in local time */
printf("%s\t%02d/%02d/%04d %02d:%02d:%02d GMT\n", argv[1], mo, day, yy, hour, min, sec);
} else {
printf("%s\n", reply_string);
}
verbose = overbose;
}
/* show status on reomte machine */
void rmtstatus(int argc, char *argv[]) {
command(argc > 1 ? "STAT %s" : "STAT" , argv[1]);
}
/* get file if modtime is more recent than current file */
void newer(int argc, char *argv[]) {
if (!getit(argc, argv, -1, "w")) return;
printf("Local file \"%s\" is newer than remote file \"%s\"\n", argv[1], argv[2]);
}