diff options
Diffstat (limited to 'usr.bin/ftp/ftp.c')
-rw-r--r-- | usr.bin/ftp/ftp.c | 1470 |
1 files changed, 0 insertions, 1470 deletions
diff --git a/usr.bin/ftp/ftp.c b/usr.bin/ftp/ftp.c deleted file mode 100644 index 19e8f8e..0000000 --- a/usr.bin/ftp/ftp.c +++ /dev/null @@ -1,1470 +0,0 @@ -/* - * Copyright (c) 1985, 1989, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static char sccsid[] = "@(#)ftp.c 8.4 (Berkeley) 4/6/94"; -#endif /* not lint */ - -#include <sys/param.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <sys/file.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <arpa/inet.h> -#include <arpa/ftp.h> -#include <arpa/telnet.h> - -#include <ctype.h> -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <netdb.h> -#include <pwd.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <varargs.h> - -#include "ftp_var.h" - -extern int h_errno; - -struct sockaddr_in hisctladdr; -struct sockaddr_in data_addr; -int data = -1; -int abrtflag = 0; -jmp_buf ptabort; -int ptabflg; -int ptflag = 0; -struct sockaddr_in myctladdr; -off_t restart_point = 0; - - -FILE *cin, *cout; - -char * -hookup(host, port) - char *host; - int port; -{ - struct hostent *hp = 0; - int s, len, tos; - static char hostnamebuf[80]; - - memset((char *)&hisctladdr, 0, sizeof (hisctladdr)); - hisctladdr.sin_addr.s_addr = inet_addr(host); - if (hisctladdr.sin_addr.s_addr != -1) { - hisctladdr.sin_family = AF_INET; - (void) strncpy(hostnamebuf, host, sizeof(hostnamebuf)); - } else { - hp = gethostbyname(host); - if (hp == NULL) { - warnx("%s: %s", host, hstrerror(h_errno)); - code = -1; - return ((char *) 0); - } - hisctladdr.sin_family = hp->h_addrtype; - memmove((caddr_t)&hisctladdr.sin_addr, - hp->h_addr_list[0], hp->h_length); - (void) strncpy(hostnamebuf, hp->h_name, sizeof(hostnamebuf)); - } - hostname = hostnamebuf; - s = socket(hisctladdr.sin_family, SOCK_STREAM, 0); - if (s < 0) { - warn("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; - char *ia; - - ia = inet_ntoa(hisctladdr.sin_addr); - errno = oerrno; - warn("connect to address %s", ia); - hp->h_addr_list++; - memmove((caddr_t)&hisctladdr.sin_addr, - hp->h_addr_list[0], hp->h_length); - fprintf(stdout, "Trying %s...\n", - inet_ntoa(hisctladdr.sin_addr)); - (void) close(s); - s = socket(hisctladdr.sin_family, SOCK_STREAM, 0); - if (s < 0) { - warn("socket"); - code = -1; - return (0); - } - continue; - } - warn("connect"); - code = -1; - goto bad; - } - len = sizeof (myctladdr); - if (getsockname(s, (struct sockaddr *)&myctladdr, &len) < 0) { - warn("getsockname"); - code = -1; - goto bad; - } -#ifdef IP_TOS - tos = IPTOS_LOWDELAY; - if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int)) < 0) - warn("setsockopt TOS (ignored)"); -#endif - cin = fdopen(s, "r"); - cout = fdopen(s, "w"); - if (cin == NULL || cout == NULL) { - warnx("fdopen failed."); - if (cin) - (void) fclose(cin); - if (cout) - (void) fclose(cout); - code = -1; - goto bad; - } - if (verbose) - printf("Connected to %s.\n", hostname); - if (getreply(0) > 2) { /* read startup message from server */ - if (cin) - (void) fclose(cin); - if (cout) - (void) fclose(cout); - code = -1; - goto bad; - } -#ifdef SO_OOBINLINE - { - int on = 1; - - if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on)) - < 0 && debug) { - warn("setsockopt"); - } - } -#endif /* SO_OOBINLINE */ - - return (hostname); -bad: - (void) close(s); - return ((char *)0); -} - -int -login(host) - char *host; -{ - char tmp[80]; - char *user, *pass, *acct; - int n, aflag = 0; - - user = pass = acct = 0; - if (ruserpass(host, &user, &pass, &acct) < 0) { - code = -1; - return (0); - } - while (user == NULL) { - char *myname = getlogin(); - - if (myname == NULL) { - struct passwd *pp = getpwuid(getuid()); - - if (pp != NULL) - myname = pp->pw_name; - } - if (myname) - printf("Name (%s:%s): ", host, myname); - else - printf("Name (%s): ", host); - (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); - } - if (n == CONTINUE) { - aflag++; - acct = getpass("Account:"); - n = command("ACCT %s", acct); - } - if (n != COMPLETE) { - warnx("Login failed."); - 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); -} - -void -cmdabort() -{ - - printf("\n"); - (void) fflush(stdout); - abrtflag++; - if (ptflag) - longjmp(ptabort,1); -} - -/*VARARGS*/ -int -command(va_alist) -va_dcl -{ - va_list ap; - char *fmt; - int r; - sig_t oldintr; - - abrtflag = 0; - if (debug) { - printf("---> "); - va_start(ap); - fmt = va_arg(ap, char *); - if (strncmp("PASS ", fmt, 5) == 0) - printf("PASS XXXX"); - else - vfprintf(stdout, fmt, ap); - va_end(ap); - printf("\n"); - (void) fflush(stdout); - } - if (cout == NULL) { - warn("No control connection for command"); - code = -1; - return (0); - } - oldintr = signal(SIGINT, cmdabort); - va_start(ap); - fmt = va_arg(ap, char *); - vfprintf(cout, fmt, ap); - va_end(ap); - fprintf(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 */ - -int -getreply(expecteof) - int expecteof; -{ - int c, n; - int dig; - int originalcode = 0, continuation = 0; - sig_t oldintr; - int pflag = 0; - char *cp, *pt = pasv; - - oldintr = signal(SIGINT, cmdabort); - for (;;) { - dig = n = code = 0; - cp = reply_string; - while ((c = getc(cin)) != '\n') { - if (c == IAC) { /* handle telnet commands */ - switch (c = getc(cin)) { - case WILL: - case WONT: - c = getc(cin); - fprintf(cout, "%c%c%c", IAC, DONT, c); - (void) fflush(cout); - break; - case DO: - case DONT: - c = getc(cin); - fprintf(cout, "%c%c%c", IAC, WONT, c); - (void) fflush(cout); - 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); - } - 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'); - } -} - -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; - -void -abortsend() -{ - - mflag = 0; - abrtflag = 0; - printf("\nsend aborted\nwaiting for remote to finish abort\n"); - (void) fflush(stdout); - longjmp(sendabort, 1); -} - -#define HASHBYTES 1024 - -void -sendrequest(cmd, local, remote, printnames) - char *cmd, *local, *remote; - int printnames; -{ - struct stat st; - struct timeval start, stop; - int c, d; - FILE *fin, *dout = 0, *popen(); - int (*closefunc) __P((FILE *)); - sig_t oldintr, oldintp; - long bytes = 0, hashbytes = HASHBYTES; - char *lmode, buf[BUFSIZ], *bufp; - - if (verbose && printnames) { - if (local && *local != '-') - printf("local: %s ", local); - if (remote) - printf("remote: %s\n", remote); - } - if (proxy) { - proxtrans(cmd, local, remote); - return; - } - if (curtype != type) - changetype(type, 0); - closefunc = NULL; - oldintr = NULL; - oldintp = NULL; - lmode = "w"; - if (setjmp(sendabort)) { - while (cpend) { - (void) getreply(0); - } - if (data >= 0) { - (void) close(data); - data = -1; - } - if (oldintr) - (void) signal(SIGINT,oldintr); - if (oldintp) - (void) signal(SIGPIPE,oldintp); - code = -1; - return; - } - oldintr = signal(SIGINT, abortsend); - if (strcmp(local, "-") == 0) - fin = stdin; - else if (*local == '|') { - oldintp = signal(SIGPIPE,SIG_IGN); - fin = popen(local + 1, "r"); - if (fin == NULL) { - warn("%s", local + 1); - (void) signal(SIGINT, oldintr); - (void) signal(SIGPIPE, oldintp); - code = -1; - return; - } - closefunc = pclose; - } else { - fin = fopen(local, "r"); - if (fin == NULL) { - warn("local: %s", local); - (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) signal(SIGINT, oldintr); - fclose(fin); - code = -1; - return; - } - } - if (initconn()) { - (void) signal(SIGINT, oldintr); - if (oldintp) - (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)) { - int rc; - - switch (curtype) { - case TYPE_A: - rc = fseek(fin, (long) restart_point, SEEK_SET); - break; - case TYPE_I: - case TYPE_L: - rc = lseek(fileno(fin), restart_point, SEEK_SET); - break; - } - if (rc < 0) { - warn("local: %s", 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; - lmode = "r+w"; - } - if (remote) { - if (command("%s %s", cmd, remote) != PRELIM) { - (void) signal(SIGINT, oldintr); - if (oldintp) - (void) signal(SIGPIPE, oldintp); - if (closefunc != NULL) - (*closefunc)(fin); - return; - } - } else - if (command("%s", cmd) != PRELIM) { - (void) signal(SIGINT, oldintr); - if (oldintp) - (void) signal(SIGPIPE, oldintp); - if (closefunc != NULL) - (*closefunc)(fin); - return; - } - dout = dataconn(lmode); - if (dout == NULL) - goto abort; - (void) gettimeofday(&start, (struct timezone *)0); - oldintp = signal(SIGPIPE, SIG_IGN); - switch (curtype) { - - 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 = write(fileno(dout), bufp, c)) <= 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) - warn("local: %s", local); - if (d < 0) { - if (errno != EPIPE) - warn("netout"); - bytes = -1; - } - break; - - case TYPE_A: - while ((c = getc(fin)) != EOF) { - if (c == '\n') { - while (hash && (bytes >= hashbytes)) { - (void) putchar('#'); - (void) fflush(stdout); - hashbytes += HASHBYTES; - } - if (ferror(dout)) - break; - (void) putc('\r', dout); - bytes++; - } - (void) putc(c, dout); - bytes++; - /* if (c == '\r') { */ - /* (void) putc('\0', dout); // this violates rfc */ - /* bytes++; */ - /* } */ - } - if (hash) { - if (bytes < hashbytes) - (void) putchar('#'); - (void) putchar('\n'); - (void) fflush(stdout); - } - if (ferror(fin)) - warn("local: %s", local); - if (ferror(dout)) { - if (errno != EPIPE) - warn("netout"); - bytes = -1; - } - break; - } - (void) gettimeofday(&stop, (struct timezone *)0); - if (closefunc != NULL) - (*closefunc)(fin); - (void) fclose(dout); - (void) getreply(0); - (void) signal(SIGINT, oldintr); - if (oldintp) - (void) signal(SIGPIPE, oldintp); - if (bytes > 0) - ptransfer("sent", bytes, &start, &stop); - return; -abort: - (void) gettimeofday(&stop, (struct timezone *)0); - (void) signal(SIGINT, oldintr); - if (oldintp) - (void) signal(SIGPIPE, oldintp); - if (!cpend) { - code = -1; - return; - } - if (data >= 0) { - (void) close(data); - data = -1; - } - if (dout) - (void) fclose(dout); - (void) getreply(0); - code = -1; - if (closefunc != NULL && fin != NULL) - (*closefunc)(fin); - if (bytes > 0) - ptransfer("sent", bytes, &start, &stop); -} - -jmp_buf recvabort; - -void -abortrecv() -{ - - mflag = 0; - abrtflag = 0; - printf("\nreceive aborted\nwaiting for remote to finish abort\n"); - (void) fflush(stdout); - longjmp(recvabort, 1); -} - -void -recvrequest(cmd, local, remote, lmode, printnames) - char *cmd, *local, *remote, *lmode; - int printnames; -{ - FILE *fout, *din = 0; - int (*closefunc) __P((FILE *)); - sig_t oldintr, oldintp; - int c, d, is_retr, tcrflag, bare_lfs = 0; - static int bufsize; - static char *buf; - long bytes = 0, hashbytes = HASHBYTES; - 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); - } - 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) - (void) signal(SIGINT, oldintr); - code = -1; - return; - } - oldintr = signal(SIGINT, abortrecv); - if (strcmp(local, "-") && *local != '|') { - if (access(local, 2) < 0) { - char *dir = strrchr(local, '/'); - - if (errno != ENOENT && errno != EACCES) { - warn("local: %s", 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) { - warn("local: %s", local); - (void) signal(SIGINT, oldintr); - code = -1; - return; - } - if (!runique && errno == EACCES && - chmod(local, 0600) < 0) { - warn("local: %s", local); - (void) signal(SIGINT, oldintr); - (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; - } - } - if (!is_retr) { - if (curtype != TYPE_A) - changetype(TYPE_A, 0); - } else if (curtype != type) - changetype(type, 0); - if (initconn()) { - (void) signal(SIGINT, oldintr); - code = -1; - return; - } - if (setjmp(recvabort)) - goto abort; - if (is_retr && restart_point && - command("REST %ld", (long) restart_point) != CONTINUE) - return; - if (remote) { - if (command("%s %s", cmd, remote) != PRELIM) { - (void) signal(SIGINT, oldintr); - return; - } - } else { - if (command("%s", cmd) != PRELIM) { - (void) signal(SIGINT, oldintr); - return; - } - } - din = dataconn("r"); - if (din == NULL) - goto abort; - if (strcmp(local, "-") == 0) - fout = stdout; - else if (*local == '|') { - oldintp = signal(SIGPIPE, SIG_IGN); - fout = popen(local + 1, "w"); - if (fout == NULL) { - warn("%s", local+1); - goto abort; - } - closefunc = pclose; - } else { - fout = fopen(local, lmode); - if (fout == NULL) { - warn("local: %s", local); - goto abort; - } - closefunc = fclose; - } - if (fstat(fileno(fout), &st) < 0 || st.st_blksize == 0) - st.st_blksize = BUFSIZ; - if (st.st_blksize > bufsize) { - if (buf) - (void) free(buf); - buf = malloc((unsigned)st.st_blksize); - if (buf == NULL) { - warn("malloc"); - bufsize = 0; - goto abort; - } - bufsize = st.st_blksize; - } - (void) gettimeofday(&start, (struct timezone *)0); - switch (curtype) { - - case TYPE_I: - case TYPE_L: - if (restart_point && - lseek(fileno(fout), restart_point, SEEK_SET) < 0) { - warn("local: %s", local); - if (closefunc != NULL) - (*closefunc)(fout); - return; - } - errno = d = 0; - while ((c = read(fileno(din), buf, bufsize)) > 0) { - if ((d = write(fileno(fout), buf, c)) != c) - break; - 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) - warn("netin"); - bytes = -1; - } - if (d < c) { - if (d < 0) - warn("local: %s", local); - else - warnx("%s: short write", local); - } - break; - - case TYPE_A: - if (restart_point) { - int i, n, ch; - - if (fseek(fout, 0L, SEEK_SET) < 0) - goto done; - n = restart_point; - for (i = 0; i++ < n;) { - if ((ch = getc(fout)) == EOF) - goto done; - if (ch == '\n') - i++; - } - if (fseek(fout, 0L, SEEK_CUR) < 0) { -done: - warn("local: %s", local); - if (closefunc != NULL) - (*closefunc)(fout); - return; - } - } - while ((c = getc(din)) != EOF) { - if (c == '\n') - bare_lfs++; - while (c == '\r') { - while (hash && (bytes >= hashbytes)) { - (void) putchar('#'); - (void) fflush(stdout); - hashbytes += HASHBYTES; - } - bytes++; - if ((c = getc(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"); - } - if (hash) { - if (bytes < hashbytes) - (void) putchar('#'); - (void) putchar('\n'); - (void) fflush(stdout); - } - if (ferror(din)) { - if (errno != EPIPE) - warn("netin"); - bytes = -1; - } - if (ferror(fout)) - warn("local: %s", local); - break; - } - if (closefunc != NULL) - (*closefunc)(fout); - (void) signal(SIGINT, oldintr); - if (oldintp) - (void) signal(SIGPIPE, oldintp); - (void) gettimeofday(&stop, (struct timezone *)0); - (void) fclose(din); - (void) getreply(0); - if (bytes > 0 && is_retr) - ptransfer("received", bytes, &start, &stop); - return; -abort: - -/* abort using RFC959 recommended IP,SYNC sequence */ - - (void) gettimeofday(&stop, (struct timezone *)0); - if (oldintp) - (void) signal(SIGPIPE, oldintr); - (void) signal(SIGINT, SIG_IGN); - if (!cpend) { - code = -1; - (void) signal(SIGINT, oldintr); - return; - } - - abort_remote(din); - code = -1; - if (data >= 0) { - (void) close(data); - data = -1; - } - if (closefunc != NULL && fout != NULL) - (*closefunc)(fout); - if (din) - (void) fclose(din); - if (bytes > 0) - ptransfer("received", bytes, &start, &stop); - (void) signal(SIGINT, oldintr); -} - -/* - * Need to start a listen on the data channel before we send the command, - * otherwise the server's connect may fail. - */ -int -initconn() -{ - char *p, *a; - int result, len, tmpno = 0; - int on = 1; - -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) { - warn("socket"); - if (tmpno) - sendport = 1; - return (1); - } - if (!sendport) - if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) { - warn("setsockopt (reuse address)"); - goto bad; - } - if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) { - warn("bind"); - goto bad; - } - if (options & SO_DEBUG && - setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0) - warn("setsockopt (ignored)"); - len = sizeof (data_addr); - if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) { - warn("getsockname"); - goto bad; - } - if (listen(data, 1) < 0) - warn("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; -#ifdef IP_TOS - on = IPTOS_THROUGHPUT; - if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on, sizeof(int)) < 0) - warn("setsockopt TOS (ignored)"); -#endif - return (0); -bad: - (void) close(data), data = -1; - if (tmpno) - sendport = 1; - return (1); -} - -FILE * -dataconn(lmode) - char *lmode; -{ - struct sockaddr_in from; - int s, fromlen = sizeof (from), tos; - - s = accept(data, (struct sockaddr *) &from, &fromlen); - if (s < 0) { - warn("accept"); - (void) close(data), data = -1; - return (NULL); - } - (void) close(data); - data = s; -#ifdef IP_TOS - tos = IPTOS_THROUGHPUT; - if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, sizeof(int)) < 0) - warn("setsockopt TOS (ignored)"); -#endif - return (fdopen(data, lmode)); -} - -void -ptransfer(direction, bytes, t0, t1) - char *direction; - long bytes; - struct timeval *t0, *t1; -{ - struct timeval td; - float 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 %.2g seconds (%.2g Kbytes/s)\n", - bytes, direction, s, bs / 1024.); - } -} - -/* -void -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() -{ - - abrtflag++; -} - -void -pswitch(flag) - int flag; -{ - sig_t oldintr; - static struct comvars { - int connect; - char name[MAXHOSTNAMELEN]; - struct sockaddr_in mctl; - struct sockaddr_in hctl; - FILE *in; - FILE *out; - int tpe; - int curtpe; - 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; - ip->curtpe = curtype; - curtype = op->curtpe; - 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)(SIGINT); - } -} - -void -abortpt() -{ - - printf("\n"); - (void) fflush(stdout); - ptabflg++; - mflag = 0; - abrtflag = 0; - longjmp(ptabort, 1); -} - -void -proxtrans(cmd, local, remote) - char *cmd, *local, *remote; -{ - sig_t oldintr; - int secndflag = 0, prox_type, nfnd; - char *cmd2; - struct fd_set mask; - - if (strcmp(cmd, "RETR")) - cmd2 = "RETR"; - else - cmd2 = runique ? "STOU" : "STOR"; - if ((prox_type = type) == 0) { - if (unix_server && unix_proxy) - prox_type = TYPE_I; - else - prox_type = TYPE_A; - } - if (curtype != prox_type) - changetype(prox_type, 1); - if (command("PASV") != COMPLETE) { - printf("proxy server does not support third party transfers.\n"); - return; - } - pswitch(0); - if (!connected) { - printf("No primary connection\n"); - pswitch(1); - code = -1; - return; - } - if (curtype != prox_type) - changetype(prox_type, 1); - if (command("PORT %s", pasv) != COMPLETE) { - pswitch(1); - return; - } - if (setjmp(ptabort)) - goto abort; - oldintr = signal(SIGINT, abortpt); - if (command("%s %s", cmd, remote) != PRELIM) { - (void) signal(SIGINT, oldintr); - 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); - (void) signal(SIGINT, oldintr); - pswitch(1); - ptflag = 0; - printf("local: %s remote: %s\n", local, remote); - return; -abort: - (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); - if (cpend) - abort_remote((FILE *) NULL); - } - pswitch(1); - if (ptabflg) - code = -1; - (void) signal(SIGINT, oldintr); - return; - } - if (cpend) - abort_remote((FILE *) NULL); - pswitch(!proxy); - if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */ - if (command("%s %s", cmd2, local) != PRELIM) { - pswitch(0); - if (cpend) - abort_remote((FILE *) NULL); - pswitch(1); - if (ptabflg) - code = -1; - (void) signal(SIGINT, oldintr); - return; - } - } - if (cpend) - abort_remote((FILE *) NULL); - pswitch(!proxy); - if (cpend) { - FD_ZERO(&mask); - FD_SET(fileno(cin), &mask); - if ((nfnd = empty(&mask, 10)) <= 0) { - if (nfnd < 0) { - warn("abort"); - } - if (ptabflg) - code = -1; - lostpeer(); - } - (void) getreply(0); - (void) getreply(0); - } - if (proxy) - pswitch(0); - pswitch(1); - if (ptabflg) - code = -1; - (void) signal(SIGINT, oldintr); -} - -void -reset(argc, argv) - int argc; - char *argv[]; -{ - struct fd_set mask; - int nfnd = 1; - - FD_ZERO(&mask); - while (nfnd > 0) { - FD_SET(fileno(cin), &mask); - if ((nfnd = empty(&mask,0)) < 0) { - warn("reset"); - code = -1; - lostpeer(); - } - else if (nfnd) { - (void) getreply(0); - } - } -} - -char * -gunique(local) - char *local; -{ - static char new[MAXPATHLEN]; - char *cp = strrchr(local, '/'); - int d, count=0; - char ext = '1'; - - if (cp) - *cp = '\0'; - d = access(cp ? local : ".", 2); - if (cp) - *cp = '/'; - if (d < 0) { - warn("local: %s", 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"); - 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); -} - -void -abort_remote(din) - FILE *din; -{ - char buf[BUFSIZ]; - int nfnd; - struct fd_set mask; - - /* - * send IAC in urgent mode instead of DM because 4.3BSD places oob mark - * after urgent byte rather than before as is protocol now - */ - sprintf(buf, "%c%c%c", IAC, IP, IAC); - if (send(fileno(cout), buf, 3, MSG_OOB) != 3) - warn("abort"); - fprintf(cout,"%cABOR\r\n", DM); - (void) fflush(cout); - FD_ZERO(&mask); - FD_SET(fileno(cin), &mask); - if (din) { - FD_SET(fileno(din), &mask); - } - if ((nfnd = empty(&mask, 10)) <= 0) { - if (nfnd < 0) { - warn("abort"); - } - if (ptabflg) - code = -1; - lostpeer(); - } - if (din && FD_ISSET(fileno(din), &mask)) { - while (read(fileno(din), buf, BUFSIZ) > 0) - /* LOOP */; - } - if (getreply(0) == ERROR && code == 552) { - /* 552 needed for nic style abort */ - (void) getreply(0); - } - (void) getreply(0); -} |