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reactos/base/applications/network/ftp/ftp.c

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/*
* Copyright (c) 1985, 1989 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "precomp.h"
#include <signal.h>
#define L_SET SEEK_SET
#define L_INCR SEEK_CUR
#define caddr_t void *
#ifndef lint
static char sccsid[] = "@(#)ftp.c 5.28 (Berkeley) 4/20/89";
#endif /* not lint */
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif
#ifdef NOVFPRINTF
#define vfprintf(a,b,c) _doprnt(b,c,a)
#endif
#ifdef sun
/* FD_SET wasn't defined until 4.0. its a cheap test for uid_t presence */
#ifndef FD_SET
#define NBBY 8 /* number of bits in a byte */
/*
* Select uses bit masks of file descriptors in longs.
* These macros manipulate such bit fields (the filesystem macros use chars).
* FD_SETSIZE may be defined by the user, but the default here
* should be >= NOFILE (param.h).
*/
#ifndef FD_SETSIZE
#define FD_SETSIZE 256
#endif
typedef long fd_mask;
#define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */
#ifndef howmany
#define howmany(x, y) (((x)+((y)-1))/(y))
#endif
#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
#define FD_ZERO(p) bzero((char *)(p), sizeof(*(p)))
typedef int uid_t;
typedef int gid_t;
#endif
#endif
struct sockaddr_in hisctladdr;
struct sockaddr_in data_addr;
int data = -1;
int abrtflag = 0;
int ptflag = 0;
int allbinary;
struct sockaddr_in myctladdr;
uid_t getuid();
#ifdef __REACTOS__
void lostpeer(void);
#else
sig_t lostpeer();
#endif
off_t restart_point = 0;
SOCKET cin, cout;
int dataconn(const char *mode);
int command(const char *fmt, ...);
char *hostname;
typedef void (*Sig_t)(int);
// Signal Handlers
void psabort(int sig);
char *hookup(const char *host, int port)
{
register struct hostent *hp = 0;
int len;
SOCKET s;
static char hostnamebuf[80];
bzero((char *)&hisctladdr, sizeof (hisctladdr));
hisctladdr.sin_addr.s_addr = inet_addr(host);
if (hisctladdr.sin_addr.s_addr != (unsigned long)-1) {
hisctladdr.sin_family = AF_INET;
(void) strncpy(hostnamebuf, host, sizeof(hostnamebuf));
} else {
hp = gethostbyname(host);
if (hp == NULL) {
fprintf(stderr, "ftp: %s: ", host);
herror((char *)NULL);
code = -1;
return((char *) 0);
}
hisctladdr.sin_family = hp->h_addrtype;
bcopy(hp->h_addr_list[0],
(caddr_t)&hisctladdr.sin_addr, hp->h_length);
(void) strncpy(hostnamebuf, hp->h_name, sizeof(hostnamebuf));
}
hostname = hostnamebuf;
s = socket(hisctladdr.sin_family, SOCK_STREAM, 0);
if (s == INVALID_SOCKET) {
perror("ftp: socket");
code = -1;
return (0);
}
hisctladdr.sin_port = port;
while (connect(s, (struct sockaddr *)&hisctladdr, sizeof (hisctladdr)) < 0) {
if (hp && hp->h_addr_list[1]) {
int oerrno = errno;
fprintf(stderr, "ftp: connect to address %s: ",
inet_ntoa(hisctladdr.sin_addr));
errno = oerrno;
perror((char *) 0);
hp->h_addr_list++;
bcopy(hp->h_addr_list[0],
(caddr_t)&hisctladdr.sin_addr, hp->h_length);
fprintf(stdout, "Trying %s...\n",
inet_ntoa(hisctladdr.sin_addr));
(void) fflush(stdout);
(void) close(s);
s = socket(hisctladdr.sin_family, SOCK_STREAM, 0);
if (s == INVALID_SOCKET) {
perror("ftp: socket");
code = -1;
return (0);
}
continue;
}
perror("ftp: connect");
code = -1;
goto bad;
}
len = sizeof (myctladdr);
if (getsockname(s, (struct sockaddr *)&myctladdr, &len) < 0) {
perror("ftp: getsockname");
code = -1;
goto bad;
}
cin = cout = s;
if (verbose) {
printf("Connected to %s.\n", hostname);
(void) fflush(stdout);
}
if (getreply(0) > 2) { /* read startup message from server */
closesocket(cin);
code = -1;
goto bad;
}
#ifdef SO_OOBINLINE
{
int on = 1;
if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (const char *) &on, sizeof(on))
< 0 && debug) {
perror("ftp: setsockopt");
}
}
#endif //SO_OOBINLINE
return (hostname);
bad:
(void) close(s);
return ((char *)0);
}
int login(const char *host)
{
char tmp[80];
char *puser, *ppass, *pacct;
const char *user, *pass, *acct;
int n, aflag = 0;
user = pass = acct = 0;
n = ruserpass(host, &puser, &ppass, &pacct);
if (n < 0) {
code = -1;
return(0);
}
if (0 != n) {
user = puser;
pass = ppass;
acct = pacct;
}
while (user == NULL) {
const char *myname = "none"; // This needs to become the username env
if (myname)
printf("Name (%s:%s): ", host, myname);
else
printf("Name (%s): ", host);
(void) fflush(stdout);
(void) fgets(tmp, sizeof(tmp) - 1, stdin);
tmp[strlen(tmp) - 1] = '\0';
if (*tmp == '\0')
user = myname;
else
user = tmp;
}
n = command("USER %s", user);
if (n == CONTINUE) {
if (pass == NULL)
pass = getpass("Password:");
n = command("PASS %s", pass);
fflush(stdin);
}
if (n == CONTINUE) {
aflag++;
acct = getpass("Account:");
n = command("ACCT %s", acct);
}
if (n != COMPLETE) {
fprintf(stderr, "Login failed.\n");
return (0);
}
if (!aflag && acct != NULL)
(void) command("ACCT %s", acct);
if (proxy)
return(1);
for (n = 0; n < macnum; ++n) {
if (!strcmp("init", macros[n].mac_name)) {
(void) strcpy(line, "$init");
makeargv();
domacro(margc, margv);
break;
}
}
return (1);
}
static void
cmdabort(int sig)
{
extern jmp_buf ptabort;
printf("\n");
(void) fflush(stdout);
abrtflag++;
if (ptflag)
longjmp(ptabort,1);
}
/*VARARGS1*/
int command(const char *fmt, ...)
{
va_list ap;
int r;
void (*oldintr)(int);
abrtflag = 0;
if (debug) {
printf("---> ");
va_start(ap, fmt);
vfprintf(stdout, fmt, ap);
va_end(ap);
printf("\n");
(void) fflush(stdout);
}
if (cout == 0) {
perror ("No control connection for command");
code = -1;
return (0);
}
oldintr = signal(SIGINT,cmdabort);
{
char buffer[1024];
va_start(ap, fmt);
vsprintf(buffer, fmt, ap);
va_end(ap);
//DLJ: to work through firewalls - send the command as a single message
strcat(buffer,"\r\n");
fprintfSocket(cout, buffer);
}
//DLJ: the following two lines are replaced by the strcat above - seems to
// make it work through firewalls.
// fprintfSocket(cout, "\r\n");
// (void) fflush(cout);
cpend = 1;
r = getreply(!strcmp(fmt, "QUIT"));
if (abrtflag && oldintr != SIG_IGN)
(*oldintr)(SIGINT);
// (void) signal(SIGINT, oldintr);
return(r);
}
char reply_string[BUFSIZ]; /* last line of previous reply */
#include <ctype.h>
int
getreply(expecteof)
int expecteof;
{
register int c, n;
register int dig;
register char *cp;
int originalcode = 0, continuation = 0;
void (*oldintr)(int);
int pflag = 0;
char *pt = pasv;
oldintr = signal(SIGINT,cmdabort);
for (;;) {
dig = n = code = 0;
cp = reply_string;
while ((c = fgetcSocket(cin)) != '\n') {
if (c == IAC) { /* handle telnet commands */
switch (fgetcSocket(cin)) {
case WILL:
case WONT:
c = fgetcSocket(cin);
fprintfSocket(cout, "%c%c%c",IAC,DONT,c);
break;
case DO:
case DONT:
c = fgetcSocket(cin);
fprintfSocket(cout, "%c%c%c",IAC,WONT,c);
break;
default:
break;
}
continue;
}
dig++;
if (c == EOF) {
if (expecteof) {
// (void) signal(SIGINT,oldintr);
code = 221;
return (0);
}
lostpeer();
if (verbose) {
printf("421 Service not available, remote server has closed connection\n");
(void) fflush(stdout);
}
code = 421;
return(4);
}
if (c != '\r' && (verbose > 0 ||
(verbose > -1 && n == '5' && dig > 4))) {
if (proxflag &&
((dig == 1 || dig == 5) && verbose == 0))
printf("%s:",hostname);
(void) putchar(c);
(void) fflush(stdout);
}
if (dig < 4 && isdigit(c))
code = code * 10 + (c - '0');
if (!pflag && code == 227)
pflag = 1;
if (dig > 4 && pflag == 1 && isdigit(c))
pflag = 2;
if (pflag == 2) {
if (c != '\r' && c != ')')
*pt++ = c;
else {
*pt = '\0';
pflag = 3;
}
}
if (dig == 4 && c == '-') {
if (continuation)
code = 0;
continuation++;
}
if (n == 0)
n = c;
if (cp < &reply_string[sizeof(reply_string) - 1])
*cp++ = c;
}
if (verbose > 0 || (verbose > -1 && n == '5')) {
(void) putchar(c);
(void) fflush (stdout);
}
if (continuation && code != originalcode) {
if (originalcode == 0)
originalcode = code;
continue;
}
*cp = '\0';
if (n != '1')
cpend = 0;
(void) signal(SIGINT,oldintr);
if (code == 421 || originalcode == 421)
lostpeer();
if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN)
(*oldintr)(SIGINT);
return (n - '0');
}
}
static int
empty(mask, sec)
struct fd_set *mask;
int sec;
{
struct timeval t;
t.tv_sec = (long) sec;
t.tv_usec = 0;
return(select(32, mask, (struct fd_set *) 0, (struct fd_set *) 0, &t));
}
jmp_buf sendabort;
#if 0
void abortsend()
{
mflag = 0;
abrtflag = 0;
printf("\nsend aborted\n");
(void) fflush(stdout);
longjmp(sendabort, 1);
}
#endif
#define HASHBYTES 1024
void sendrequest(const char *cmd, const char *local, const char *remote, int printnames)
{
FILE *fin;
int dout = 0;
int (*closefunc)();
sig_t (*oldintr)(), (*oldintp)();
char buf[BUFSIZ], *bufp;
long bytes = 0, hashbytes = HASHBYTES;
register int c, d;
struct stat st;
struct timeval start, stop;
const char *mode;
if (verbose && printnames) {
if (local && *local != '-')
printf("local: %s ", local);
if (remote)
printf("remote: %s\n", remote);
(void) fflush(stdout);
}
if (proxy) {
proxtrans(cmd, local, remote);
return;
}
closefunc = NULL;
oldintr = NULL;
oldintp = NULL;
mode = "w";
if (setjmp(sendabort)) {
while (cpend) {
(void) getreply(0);
}
if (data >= 0) {
(void) close(data);
data = -1;
}
if (oldintr)
null();// (void) signal(SIGINT,oldintr);
if (oldintp)
null();// (void) signal(SIGPIPE,oldintp);
code = -1;
return;
}
null();// oldintr = signal(SIGINT, abortsend);
if (strcmp(local, "-") == 0)
fin = stdin;
else if (*local == '|') {
null();// oldintp = signal(SIGPIPE,SIG_IGN);
fin = _popen(local + 1, "r");
if (fin == NULL) {
perror(local + 1);
null();// (void) signal(SIGINT, oldintr);
null();// (void) signal(SIGPIPE, oldintp);
code = -1;
return;
}
closefunc = _pclose;
} else {
fin = fopen(local, "r");
if (fin == NULL) {
perror(local);
null();// (void) signal(SIGINT, oldintr);
code = -1;
return;
}
closefunc = fclose;
if (fstat(fileno(fin), &st) < 0 ||
(st.st_mode&S_IFMT) != S_IFREG) {
fprintf(stdout, "%s: not a plain file.\n", local);
(void) fflush(stdout);
null();// (void) signal(SIGINT, oldintr);
fclose(fin);
code = -1;
return;
}
}
if (initconn()) {
null();// (void) signal(SIGINT, oldintr);
if (oldintp)
null();// (void) signal(SIGPIPE, oldintp);
code = -1;
if (closefunc != NULL)
(*closefunc)(fin);
return;
}
if (setjmp(sendabort))
goto abort;
if (restart_point &&
(strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
if (fseek(fin, (long) restart_point, 0) < 0) {
perror(local);
restart_point = 0;
if (closefunc != NULL)
(*closefunc)(fin);
return;
}
if (command("REST %ld", (long) restart_point)
!= CONTINUE) {
restart_point = 0;
if (closefunc != NULL)
(*closefunc)(fin);
return;
}
restart_point = 0;
mode = "r+w";
}
if (remote) {
if (command("%s %s", cmd, remote) != PRELIM) {
null();// (void) signal(SIGINT, oldintr);
if (oldintp)
null();// (void) signal(SIGPIPE, oldintp);
if (closefunc != NULL)
(*closefunc)(fin);
return;
}
} else
if (command("%s", cmd) != PRELIM) {
null();// (void) signal(SIGINT, oldintr);
if (oldintp)
null();// (void) signal(SIGPIPE, oldintp);
if (closefunc != NULL)
(*closefunc)(fin);
return;
}
dout = dataconn(mode);
if (!dout)
goto abort;
(void) gettimeofday(&start, (struct timezone *)0);
null();// oldintp = signal(SIGPIPE, SIG_IGN);
switch (type) {
case TYPE_I:
case TYPE_L:
errno = d = 0;
while ((c = read(fileno(fin), buf, sizeof (buf))) > 0) {
bytes += c;
for (bufp = buf; c > 0; c -= d, bufp += d)
if ((d = send(dout, bufp, c, 0)) <= 0)
break;
if (hash) {
while (bytes >= hashbytes) {
(void) putchar('#');
hashbytes += HASHBYTES;
}
(void) fflush(stdout);
}
}
if (hash && bytes > 0) {
if (bytes < HASHBYTES)
(void) putchar('#');
(void) putchar('\n');
(void) fflush(stdout);
}
if (c < 0)
perror(local);
if (d <= 0) {
if (d == 0)
fprintf(stderr, "netout: write returned 0?\n");
else if (errno != EPIPE)
perror("netout");
bytes = -1;
}
break;
case TYPE_A:
{
char buf[1024];
static int bufsize = 1024;
int ipos=0;
while ((c = getc(fin)) != EOF) {
if (c == '\n') {
while (hash && (bytes >= hashbytes)) {
(void) putchar('#');
(void) fflush(stdout);
hashbytes += HASHBYTES;
}
// Szurgot: The following code is unnecessary on Win32.
// (void) fputcSocket(dout, '\r');
// bytes++;
}
if (ipos >= bufsize) {
fputSocket(dout,buf,ipos);
if(!hash) (void) putchar('.');
ipos=0;
}
buf[ipos]=c; ++ipos;
bytes++;
}
if (ipos) {
fputSocket(dout,buf,ipos);
ipos=0;
}
if (hash) {
if (bytes < hashbytes)
(void) putchar('#');
(void) putchar('\n');
(void) fflush(stdout);
}
else {
(void) putchar('.');
(void) putchar('\n');
(void) fflush(stdout);
}
if (ferror(fin))
perror(local);
// if (ferror(dout)) {
// if (errno != EPIPE)
// perror("netout");
// bytes = -1;
// }
break;
}
}
(void) gettimeofday(&stop, (struct timezone *)0);
if (closefunc != NULL)
(*closefunc)(fin);
if(closesocket(dout)) {
int iret=WSAGetLastError ();
fprintf(stdout,"Error closing socket(%d)\n",iret);
(void) fflush(stdout);
}
(void) getreply(0);
null();// (void) signal(SIGINT, oldintr);
if (oldintp)
null();// (void) signal(SIGPIPE, oldintp);
if (bytes > 0)
ptransfer("sent", bytes, &start, &stop);
return;
abort:
(void) gettimeofday(&stop, (struct timezone *)0);
null();// (void) signal(SIGINT, oldintr);
if (oldintp)
null();// (void) signal(SIGPIPE, oldintp);
if (!cpend) {
code = -1;
(*closefunc)(fin);
return;
}
if (data >= 0) {
(void) close(data);
data = -1;
}
if (dout)
if(closesocket(dout)) {
int iret=WSAGetLastError ();
fprintf(stdout,"Error closing socket(%d)\n",iret);
(void) fflush(stdout);
}
(void) getreply(0);
code = -1;
if (closefunc != NULL && fin != NULL)
(*closefunc)(fin);
if (bytes > 0)
ptransfer("sent", bytes, &start, &stop);
}
jmp_buf recvabort;
#if 0
void abortrecv()
{
mflag = 0;
abrtflag = 0;
printf("\n");
(void) fflush(stdout);
longjmp(recvabort, 1);
}
#endif
void recvrequest(const char *cmd, const char *local, const char *remote, const char *mode,
int printnames)
{
FILE *fout = stdout;
int din = 0;
int (*closefunc)();
void (*oldintr)(int), (*oldintp)(int);
int oldverbose = 0, oldtype = 0, is_retr, tcrflag, nfnd, bare_lfs = 0;
char msg;
// static char *buf; // Szurgot: Shouldn't this go SOMEWHERE?
char buf[1024];
static int bufsize = 1024;
long bytes = 0, hashbytes = HASHBYTES;
// struct
fd_set mask;
register int c;
struct timeval start, stop;
// struct stat st;
is_retr = strcmp(cmd, "RETR") == 0;
if (is_retr && verbose && printnames) {
if (local && *local != '-')
printf("local: %s ", local);
if (remote)
printf("remote: %s\n", remote);
(void) fflush(stdout);
}
if (proxy && is_retr) {
proxtrans(cmd, local, remote);
return;
}
closefunc = NULL;
oldintr = NULL;
oldintp = NULL;
tcrflag = !crflag && is_retr;
if (setjmp(recvabort)) {
while (cpend) {
(void) getreply(0);
}
if (data >= 0) {
(void) close(data);
data = -1;
}
if (oldintr)
null();// (void) signal(SIGINT, oldintr);
code = -1;
return;
}
null();// oldintr = signal(SIGINT, abortrecv);
if (strcmp(local, "-") && *local != '|') {
#ifndef _WIN32
register int d;
// This whole thing is a problem... access Won't work on non-existent files
if (access(local, 2) < 0) {
char *dir = rindex(local, '/');
if (errno != ENOENT && errno != EACCES) {
perror(local);
(void) signal(SIGINT, oldintr);
code = -1;
return;
}
if (dir != NULL)
*dir = 0;
d = access(dir ? local : ".", 2);
if (dir != NULL)
*dir = '/';
if (d < 0) {
perror(local);
(void) signal(SIGINT, oldintr);
code = -1;
return;
}
if (!runique && errno == EACCES &&
chmod(local, 0600) < 0) {
perror(local);
(void) signal(SIGINT, oldintr);
code = -1;
return;
}
if (runique && errno == EACCES &&
(local = gunique(local)) == NULL) {
(void) signal(SIGINT, oldintr);
code = -1;
return;
}
}
else if (runique && (local = gunique(local)) == NULL) {
(void) signal(SIGINT, oldintr);
code = -1;
return;
}
#endif
}
if (initconn()) {
null();// (void) signal(SIGINT, oldintr);
code = -1;
return;
}
if (setjmp(recvabort))
goto abort;
if (!is_retr) {
if (type != TYPE_A && (allbinary == 0 || type != TYPE_I)) {
oldtype = type;
oldverbose = verbose;
if (!debug)
verbose = 0;
setascii(0, NULL);
verbose = oldverbose;
}
} else if (restart_point) {
if (command("REST %ld", (long) restart_point) != CONTINUE)
return;
}
if (remote) {
if (command("%s %s", cmd, remote) != PRELIM) {
null();// (void) signal(SIGINT, oldintr);
if (oldtype) {
if (!debug)
verbose = 0;
switch (oldtype) {
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
verbose = oldverbose;
}
return;
}
} else {
if (command("%s", cmd) != PRELIM) {
null();// (void) signal(SIGINT, oldintr);
if (oldtype) {
if (!debug)
verbose = 0;
switch (oldtype) {
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
verbose = oldverbose;
}
return;
}
}
din = dataconn("r");
if (!din)
goto abort;
if (strcmp(local, "-") == 0)
fout = stdout;
else if (*local == '|') {
null();// oldintp = signal(SIGPIPE, SIG_IGN);
fout = _popen(local + 1, "w");
if (fout == NULL) {
perror(local+1);
goto abort;
}
closefunc = _pclose;
} else {
fout = fopen(local, mode);
if (fout == NULL) {
perror(local);
goto abort;
}
closefunc = fclose;
}
(void) gettimeofday(&start, (struct timezone *)0);
switch (type) {
case TYPE_I:
case TYPE_L:
if (restart_point &&
lseek(fileno(fout), (long) restart_point, L_SET) < 0) {
perror(local);
if (closefunc != NULL)
(*closefunc)(fout);
return;
}
errno = 0;
// while ((c = recv(din, buf, bufsize, 1)) > 0) {
// if ((d = write(fileno(fout), buf, c)) != c)
// if ((d = write(fileno(fout), buf, c)) != c)
// break;
while ((c = recv(din, buf, bufsize, 0)) > 0) {
write(fileno(fout), buf, c);
bytes += c;
if (hash) {
while (bytes >= hashbytes) {
(void) putchar('#');
hashbytes += HASHBYTES;
}
(void) fflush(stdout);
}
}
if (hash && bytes > 0) {
if (bytes < HASHBYTES)
(void) putchar('#');
(void) putchar('\n');
(void) fflush(stdout);
}
// if (c < 0) {
// if (errno != EPIPE)
// perror("netin");
// bytes = -1;
// }
// if (d < c) {
// if (d < 0)
// perror(local);
// else
// fprintf(stderr, "%s: short write\n", local);
// }
break;
case TYPE_A:
if (restart_point) {
register int i, n, c;
if (fseek(fout, 0L, L_SET) < 0)
goto done;
n = restart_point;
i = 0;
while (i++ < n) {
if ((c=getc(fout)) == EOF)
goto done;
if (c == '\n')
i++;
}
if (fseek(fout, 0L, L_INCR) < 0) {
done:
perror(local);
if (closefunc != NULL)
(*closefunc)(fout);
return;
}
}
while ((c = fgetcSocket(din)) != EOF) {
if (c == '\n')
bare_lfs++;
while (c == '\r') {
while (hash && (bytes >= hashbytes)) {
(void) putchar('#');
(void) fflush(stdout);
hashbytes += HASHBYTES;
}
bytes++;
if ((c = fgetcSocket(din)) != '\n' || tcrflag) {
if (ferror(fout))
goto break2;
(void) putc('\r', fout);
if (c == '\0') {
bytes++;
goto contin2;
}
if (c == EOF)
goto contin2;
}
}
(void) putc(c, fout);
bytes++;
contin2: ;
}
break2:
if (bare_lfs) {
printf("WARNING! %d bare linefeeds received in ASCII mode\n", bare_lfs);
printf("File may not have transferred correctly.\n");
(void) fflush(stdout);
}
if (hash) {
if (bytes < hashbytes)
(void) putchar('#');
(void) putchar('\n');
(void) fflush(stdout);
}
// if (ferror(din)) {
// if (errno != EPIPE)
// perror("netin");
// bytes = -1;
// }
if (ferror(fout))
perror(local);
break;
}
if (closefunc != NULL)
(*closefunc)(fout);
null();// (void) signal(SIGINT, oldintr);
if (oldintp)
null();// (void) signal(SIGPIPE, oldintp);
(void) gettimeofday(&stop, (struct timezone *)0);
if(closesocket(din)) {
int iret=WSAGetLastError ();
fprintf(stdout,"Error closing socket(%d)\n",iret);
(void) fflush(stdout);
}
(void) getreply(0);
if (bytes > 0 && is_retr)
ptransfer("received", bytes, &start, &stop);
if (oldtype) {
if (!debug)
verbose = 0;
switch (oldtype) {
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
verbose = oldverbose;
}
return;
abort:
/* abort using RFC959 recommended IP,SYNC sequence */
(void) gettimeofday(&stop, (struct timezone *)0);
if (oldintp)
null();// (void) signal(SIGPIPE, oldintr);
null();// (void) signal(SIGINT,SIG_IGN);
if (oldtype) {
if (!debug)
verbose = 0;
switch (oldtype) {
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
verbose = oldverbose;
}
if (!cpend) {
code = -1;
null();// (void) signal(SIGINT,oldintr);
return;
}
fprintfSocket(cout,"%c%c",IAC,IP);
msg = (char)IAC;
/* send IAC in urgent mode instead of DM because UNIX places oob mark */
/* after urgent byte rather than before as now is protocol */
if (send(cout,&msg,1,MSG_OOB) != 1) {
perror("abort");
}
fprintfSocket(cout,"%cABOR\r\n",DM);
FD_ZERO(&mask);
FD_SET(cin, &mask); // Need to correct this
if (din) {
FD_SET(din, &mask); // Need to correct this
}
if ((nfnd = empty(&mask,10)) <= 0) {
if (nfnd < 0) {
perror("abort");
}
code = -1;
lostpeer();
}
if (din && FD_ISSET(din, &mask)) {
while (recv(din, buf, bufsize, 0) > 0)
;
}
if (getreply(0) == ERROR && code == 552) { /* needed for nic style abort */
if (data >= 0) {
(void) close(data);
data = -1;
}
(void) getreply(0);
}
(void) getreply(0);
code = -1;
if (data >= 0) {
(void) close(data);
data = -1;
}
if (closefunc != NULL && fout != NULL)
(*closefunc)(fout);
if (din)
if(closesocket(din)) {
int iret=WSAGetLastError ();
fprintf(stdout,"Error closing socket(%d)\n",iret);
(void) fflush(stdout);
}
if (bytes > 0)
ptransfer("received", bytes, &start, &stop);
null();// (void) signal(SIGINT,oldintr);
}
int
initconn()
{
register char *p, *a;
int result, len, tmpno = 0;
int on = 1;
int a0, a1, a2, a3, p0, p1;
if (passivemode) {
data = socket(AF_INET, SOCK_STREAM, 0);
if (data < 0) {
perror("ftp: socket");
return(1);
}
if ((options & SO_DEBUG) &&
setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
sizeof (on)) < 0)
perror("ftp: setsockopt (ignored)");
if (command("PASV") != COMPLETE) {
printf("Passive mode refused.\n");
goto bad;
}
/*
* What we've got at this point is a string of comma
* separated one-byte unsigned integer values.
* The first four are the an IP address. The fifth is
* the MSB of the port number, the sixth is the LSB.
* From that we'll prepare a sockaddr_in.
*/
if (sscanf(pasv,"%d,%d,%d,%d,%d,%d",
&a0, &a1, &a2, &a3, &p0, &p1) != 6) {
printf("Passive mode address scan failure. Shouldn't happen!\n");
goto bad;
}
bzero(&data_addr, sizeof(data_addr));
data_addr.sin_family = AF_INET;
a = (char *)&data_addr.sin_addr.s_addr;
a[0] = a0 & 0xff;
a[1] = a1 & 0xff;
a[2] = a2 & 0xff;
a[3] = a3 & 0xff;
p = (char *)&data_addr.sin_port;
p[0] = p0 & 0xff;
p[1] = p1 & 0xff;
if (connect(data, (struct sockaddr *)&data_addr,
sizeof(data_addr)) < 0) {
perror("ftp: connect");
goto bad;
}
return(0);
}
noport:
data_addr = myctladdr;
if (sendport)
data_addr.sin_port = 0; /* let system pick one */
if (data != -1)
(void) close (data);
data = socket(AF_INET, SOCK_STREAM, 0);
if (data < 0) {
perror("ftp: socket");
if (tmpno)
sendport = 1;
return (1);
}
if (!sendport)
if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) {
perror("ftp: setsockopt (reuse address)");
goto bad;
}
if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) {
perror("ftp: bind");
goto bad;
}
if (options & SO_DEBUG &&
setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0)
perror("ftp: setsockopt (ignored)");
len = sizeof (data_addr);
if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
perror("ftp: getsockname");
goto bad;
}
if (listen(data, 1) < 0)
perror("ftp: listen");
if (sendport) {
a = (char *)&data_addr.sin_addr;
p = (char *)&data_addr.sin_port;
#define UC(b) (((int)b)&0xff)
result =
command("PORT %d,%d,%d,%d,%d,%d",
UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
UC(p[0]), UC(p[1]));
if (result == ERROR && sendport == -1) {
sendport = 0;
tmpno = 1;
goto noport;
}
return (result != COMPLETE);
}
if (tmpno)
sendport = 1;
return (0);
bad:
(void) fflush(stdout);
(void) close(data), data = -1;
if (tmpno)
sendport = 1;
return (1);
}
int dataconn(const char *mode)
{
struct sockaddr_in from;
int s, fromlen = sizeof (from);
if (passivemode)
return (data);
s = accept(data, (struct sockaddr *) &from, &fromlen);
if (s < 0) {
perror("ftp: accept");
(void) closesocket(data), data = -1;
return 0;
}
if(closesocket(data)) {
int iret=WSAGetLastError ();
fprintf(stdout,"Error closing socket(%d)\n",iret);
(void) fflush(stdout);
}
data = s;
return (data);
}
void ptransfer(direction, bytes, t0, t1)
const char *direction;
long bytes;
struct timeval *t0, *t1;
{
struct timeval td;
double s, bs;
if (verbose) {
tvsub(&td, t1, t0);
s = td.tv_sec + (td.tv_usec / 1000000.);
#define nz(x) ((x) == 0 ? 1 : (x))
bs = bytes / nz(s);
printf("%ld bytes %s in %.1f seconds (%.0f Kbytes/s)\n",
bytes, direction, s, bs / 1024.);
(void) fflush(stdout);
}
}
/*tvadd(tsum, t0)
struct timeval *tsum, *t0;
{
tsum->tv_sec += t0->tv_sec;
tsum->tv_usec += t0->tv_usec;
if (tsum->tv_usec > 1000000)
tsum->tv_sec++, tsum->tv_usec -= 1000000;
} */
void tvsub(tdiff, t1, t0)
struct timeval *tdiff, *t1, *t0;
{
tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
if (tdiff->tv_usec < 0)
tdiff->tv_sec--, tdiff->tv_usec += 1000000;
}
void psabort(int flag)
{
extern int abrtflag;
abrtflag++;
}
void pswitch(int flag)
{
extern int proxy, abrtflag;
Sig_t oldintr;
static struct comvars {
int connect;
char name[MAXHOSTNAMELEN];
struct sockaddr_in mctl;
struct sockaddr_in hctl;
SOCKET in;
SOCKET out;
int tpe;
int cpnd;
int sunqe;
int runqe;
int mcse;
int ntflg;
char nti[17];
char nto[17];
int mapflg;
char mi[MAXPATHLEN];
char mo[MAXPATHLEN];
} proxstruct, tmpstruct;
struct comvars *ip, *op;
abrtflag = 0;
oldintr = signal(SIGINT, psabort);
if (flag) {
if (proxy)
return;
ip = &tmpstruct;
op = &proxstruct;
proxy++;
}
else {
if (!proxy)
return;
ip = &proxstruct;
op = &tmpstruct;
proxy = 0;
}
ip->connect = connected;
connected = op->connect;
if (hostname) {
(void) strncpy(ip->name, hostname, sizeof(ip->name) - 1);
ip->name[strlen(ip->name)] = '\0';
} else
ip->name[0] = 0;
hostname = op->name;
ip->hctl = hisctladdr;
hisctladdr = op->hctl;
ip->mctl = myctladdr;
myctladdr = op->mctl;
ip->in = cin;
cin = op->in;
ip->out = cout;
cout = op->out;
ip->tpe = type;
type = op->tpe;
if (!type)
type = 1;
ip->cpnd = cpend;
cpend = op->cpnd;
ip->sunqe = sunique;
sunique = op->sunqe;
ip->runqe = runique;
runique = op->runqe;
ip->mcse = mcase;
mcase = op->mcse;
ip->ntflg = ntflag;
ntflag = op->ntflg;
(void) strncpy(ip->nti, ntin, 16);
(ip->nti)[strlen(ip->nti)] = '\0';
(void) strcpy(ntin, op->nti);
(void) strncpy(ip->nto, ntout, 16);
(ip->nto)[strlen(ip->nto)] = '\0';
(void) strcpy(ntout, op->nto);
ip->mapflg = mapflag;
mapflag = op->mapflg;
(void) strncpy(ip->mi, mapin, MAXPATHLEN - 1);
(ip->mi)[strlen(ip->mi)] = '\0';
(void) strcpy(mapin, op->mi);
(void) strncpy(ip->mo, mapout, MAXPATHLEN - 1);
(ip->mo)[strlen(ip->mo)] = '\0';
(void) strcpy(mapout, op->mo);
// (void) signal(SIGINT, oldintr);
if (abrtflag) {
abrtflag = 0;
(*oldintr)(1);
}
}
jmp_buf ptabort;
int ptabflg;
#if 0
void
abortpt()
{
printf("\n");
(void) fflush(stdout);
ptabflg++;
mflag = 0;
abrtflag = 0;
longjmp(ptabort, 1);
}
#endif
void proxtrans(cmd, local, remote)
const char *cmd, *local, *remote;
{
// void (*oldintr)(int);
int tmptype, oldtype = 0, secndflag = 0, nfnd;
extern jmp_buf ptabort;
const char *cmd2;
// struct
fd_set mask;
if (strcmp(cmd, "RETR"))
cmd2 = "RETR";
else
cmd2 = runique ? "STOU" : "STOR";
if (command("PASV") != COMPLETE) {
printf("proxy server does not support third part transfers.\n");
(void) fflush(stdout);
return;
}
tmptype = type;
pswitch(0);
if (!connected) {
printf("No primary connection\n");
(void) fflush(stdout);
pswitch(1);
code = -1;
return;
}
if (type != tmptype) {
oldtype = type;
switch (tmptype) {
case TYPE_A:
setascii(0, NULL);
break;
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
}
if (command("PORT %s", pasv) != COMPLETE) {
switch (oldtype) {
case 0:
break;
case TYPE_A:
setascii(0, NULL);
break;
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
pswitch(1);
return;
}
if (setjmp(ptabort))
goto abort;
null();// oldintr = signal(SIGINT, abortpt);
if (command("%s %s", cmd, remote) != PRELIM) {
null();// (void) signal(SIGINT, oldintr);
switch (oldtype) {
case 0:
break;
case TYPE_A:
setascii(0, NULL);
break;
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
pswitch(1);
return;
}
sleep(2);
pswitch(1);
secndflag++;
if (command("%s %s", cmd2, local) != PRELIM)
goto abort;
ptflag++;
(void) getreply(0);
pswitch(0);
(void) getreply(0);
null();// (void) signal(SIGINT, oldintr);
switch (oldtype) {
case 0:
break;
case TYPE_A:
setascii(0, NULL);
break;
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
pswitch(1);
ptflag = 0;
printf("local: %s remote: %s\n", local, remote);
(void) fflush(stdout);
return;
abort:
null();// (void) signal(SIGINT, SIG_IGN);
ptflag = 0;
if (strcmp(cmd, "RETR") && !proxy)
pswitch(1);
else if (!strcmp(cmd, "RETR") && proxy)
pswitch(0);
if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */
if (command("%s %s", cmd2, local) != PRELIM) {
pswitch(0);
switch (oldtype) {
case 0:
break;
case TYPE_A:
setascii(0, NULL);
break;
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
if (cpend) {
char msg[2];
fprintfSocket(cout,"%c%c",IAC,IP);
*msg = (char) IAC;
*(msg+1) = (char) DM;
if (send(cout,msg,2,MSG_OOB) != 2)
perror("abort");
fprintfSocket(cout,"ABOR\r\n");
FD_ZERO(&mask);
// FD_SET(fileno(cin), &mask); // Chris: Need to correct this
if ((nfnd = empty(&mask,10)) <= 0) {
if (nfnd < 0) {
perror("abort");
}
if (ptabflg)
code = -1;
lostpeer();
}
(void) getreply(0);
(void) getreply(0);
}
}
pswitch(1);
if (ptabflg)
code = -1;
null();// (void) signal(SIGINT, oldintr);
return;
}
if (cpend) {
char msg[2];
fprintfSocket(cout,"%c%c",IAC,IP);
*msg = (char)IAC;
*(msg+1) = (char)DM;
if (send(cout,msg,2,MSG_OOB) != 2)
perror("abort");
fprintfSocket(cout,"ABOR\r\n");
FD_ZERO(&mask);
// FD_SET(fileno(cin), &mask); // Chris: Need to correct this...
if ((nfnd = empty(&mask,10)) <= 0) {
if (nfnd < 0) {
perror("abort");
}
if (ptabflg)
code = -1;
lostpeer();
}
(void) getreply(0);
(void) getreply(0);
}
pswitch(!proxy);
if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */
if (command("%s %s", cmd2, local) != PRELIM) {
pswitch(0);
switch (oldtype) {
case 0:
break;
case TYPE_A:
setascii(0, NULL);
break;
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
if (cpend) {
char msg[2];
fprintfSocket(cout,"%c%c",IAC,IP);
*msg = (char)IAC;
*(msg+1) = (char)DM;
if (send(cout,msg,2,MSG_OOB) != 2)
perror("abort");
fprintfSocket(cout,"ABOR\r\n");
FD_ZERO(&mask);
// FD_SET(fileno(cin), &mask); // Chris:
if ((nfnd = empty(&mask,10)) <= 0) {
if (nfnd < 0) {
perror("abort");
}
if (ptabflg)
code = -1;
lostpeer();
}
(void) getreply(0);
(void) getreply(0);
}
pswitch(1);
if (ptabflg)
code = -1;
null();// (void) signal(SIGINT, oldintr);
return;
}
}
if (cpend) {
char msg[2];
fprintfSocket(cout,"%c%c",IAC,IP);
*msg = (char)IAC;
*(msg+1) = (char)DM;
if (send(cout,msg,2,MSG_OOB) != 2)
perror("abort");
fprintfSocket(cout,"ABOR\r\n");
FD_ZERO(&mask);
// FD_SET(fileno(cin), &mask); // Chris:
if ((nfnd = empty(&mask,10)) <= 0) {
if (nfnd < 0) {
perror("abort");
}
if (ptabflg)
code = -1;
lostpeer();
}
(void) getreply(0);
(void) getreply(0);
}
pswitch(!proxy);
if (cpend) {
FD_ZERO(&mask);
// FD_SET(fileno(cin), &mask); // Chris:
if ((nfnd = empty(&mask,10)) <= 0) {
if (nfnd < 0) {
perror("abort");
}
if (ptabflg)
code = -1;
lostpeer();
}
(void) getreply(0);
(void) getreply(0);
}
if (proxy)
pswitch(0);
switch (oldtype) {
case 0:
break;
case TYPE_A:
setascii(0, NULL);
break;
case TYPE_I:
setbinary(0, NULL);
break;
case TYPE_E:
setebcdic();
break;
case TYPE_L:
settenex(0, NULL);
break;
}
pswitch(1);
if (ptabflg)
code = -1;
null();// (void) signal(SIGINT, oldintr);
}
void reset(int argc, const char *argv[])
{
// struct
fd_set mask;
int nfnd = 1;
FD_ZERO(&mask);
while (nfnd > 0) {
// FD_SET(fileno(cin), &mask); // Chris
if ((nfnd = empty(&mask,0)) < 0) {
perror("reset");
code = -1;
lostpeer();
}
else if (nfnd) {
(void) getreply(0);
}
}
}
#if 0
char *
gunique(local)
char *local;
{
static char new[MAXPATHLEN];
char *cp = rindex(local, '/');
int d, count=0;
char ext = '1';
if (cp)
*cp = '\0';
d = access(cp ? local : ".", 2);
if (cp)
*cp = '/';
if (d < 0) {
perror(local);
return((char *) 0);
}
(void) strcpy(new, local);
cp = new + strlen(new);
*cp++ = '.';
while (!d) {
if (++count == 100) {
printf("runique: can't find unique file name.\n");
(void) fflush(stdout);
return((char *) 0);
}
*cp++ = ext;
*cp = '\0';
if (ext == '9')
ext = '0';
else
ext++;
if ((d = access(new, 0)) < 0)
break;
if (ext != '0')
cp--;
else if (*(cp - 2) == '.')
*(cp - 1) = '1';
else {
*(cp - 2) = *(cp - 2) + 1;
cp--;
}
}
return(new);
}
#endif
int null(void)
{
return 0;
}
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