121739Sdist /* 236942Skarels * Copyright (c) 1985, 1989 Regents of the University of California. 333737Sbostic * All rights reserved. 433737Sbostic * 533737Sbostic * Redistribution and use in source and binary forms are permitted 634901Sbostic * provided that the above copyright notice and this paragraph are 734901Sbostic * duplicated in all such forms and that any documentation, 834901Sbostic * advertising materials, and other materials related to such 934901Sbostic * distribution and use acknowledge that the software was developed 1034901Sbostic * by the University of California, Berkeley. The name of the 1134901Sbostic * University may not be used to endorse or promote products derived 1234901Sbostic * from this software without specific prior written permission. 1334901Sbostic * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 1434901Sbostic * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 1536935Skarels * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 1621739Sdist */ 1721739Sdist 1810296Ssam #ifndef lint 19*42278Skarels static char sccsid[] = "@(#)ftp.c 5.33 (Berkeley) 05/22/90"; 2033737Sbostic #endif /* not lint */ 2110296Ssam 2236940Skarels #include <sys/param.h> 2310296Ssam #include <sys/stat.h> 2410296Ssam #include <sys/ioctl.h> 2510296Ssam #include <sys/socket.h> 2613614Ssam #include <sys/time.h> 2736935Skarels #include <sys/file.h> 2810296Ssam 2910296Ssam #include <netinet/in.h> 3012397Ssam #include <arpa/ftp.h> 3126048Sminshall #include <arpa/telnet.h> 3210296Ssam 3310296Ssam #include <stdio.h> 3410296Ssam #include <signal.h> 3510296Ssam #include <errno.h> 3610296Ssam #include <netdb.h> 3726048Sminshall #include <fcntl.h> 3826048Sminshall #include <pwd.h> 3938133Srick #include <varargs.h> 4010296Ssam 4136940Skarels #include "ftp_var.h" 4236940Skarels 4310296Ssam struct sockaddr_in hisctladdr; 4410296Ssam struct sockaddr_in data_addr; 4510296Ssam int data = -1; 4626048Sminshall int abrtflag = 0; 4726048Sminshall int ptflag = 0; 4810296Ssam struct sockaddr_in myctladdr; 4926496Sminshall uid_t getuid(); 5038133Srick sig_t lostpeer(); 5137225Skarels off_t restart_point = 0; 5210296Ssam 5338202Srick extern char *strerror(); 5440193Sbostic extern int connected, errno; 5538202Srick 5610296Ssam FILE *cin, *cout; 5710296Ssam FILE *dataconn(); 5810296Ssam 5925904Skarels char * 6010296Ssam hookup(host, port) 6110296Ssam char *host; 6210296Ssam int port; 6310296Ssam { 6425904Skarels register struct hostent *hp = 0; 6527687Sminshall int s,len; 6625904Skarels static char hostnamebuf[80]; 6710296Ssam 6810296Ssam bzero((char *)&hisctladdr, sizeof (hisctladdr)); 6925904Skarels hisctladdr.sin_addr.s_addr = inet_addr(host); 7025904Skarels if (hisctladdr.sin_addr.s_addr != -1) { 7125904Skarels hisctladdr.sin_family = AF_INET; 7236940Skarels (void) strncpy(hostnamebuf, host, sizeof(hostnamebuf)); 7336940Skarels } else { 7425100Sbloom hp = gethostbyname(host); 7525904Skarels if (hp == NULL) { 7635792Sbostic fprintf(stderr, "ftp: %s: ", host); 7735792Sbostic herror((char *)NULL); 7826048Sminshall code = -1; 7926048Sminshall return((char *) 0); 8025904Skarels } 8125904Skarels hisctladdr.sin_family = hp->h_addrtype; 8225904Skarels bcopy(hp->h_addr_list[0], 8325904Skarels (caddr_t)&hisctladdr.sin_addr, hp->h_length); 8436940Skarels (void) strncpy(hostnamebuf, hp->h_name, sizeof(hostnamebuf)); 8510296Ssam } 8625904Skarels hostname = hostnamebuf; 8725904Skarels s = socket(hisctladdr.sin_family, SOCK_STREAM, 0); 8810296Ssam if (s < 0) { 8910296Ssam perror("ftp: socket"); 9026048Sminshall code = -1; 9110296Ssam return (0); 9210296Ssam } 9310296Ssam hisctladdr.sin_port = port; 9438133Srick while (connect(s, (struct sockaddr *)&hisctladdr, sizeof (hisctladdr)) < 0) { 9525904Skarels if (hp && hp->h_addr_list[1]) { 9625904Skarels int oerrno = errno; 9738133Srick extern char *inet_ntoa(); 9825904Skarels 9925904Skarels fprintf(stderr, "ftp: connect to address %s: ", 10025904Skarels inet_ntoa(hisctladdr.sin_addr)); 10125904Skarels errno = oerrno; 10226496Sminshall perror((char *) 0); 10325904Skarels hp->h_addr_list++; 10425904Skarels bcopy(hp->h_addr_list[0], 10526048Sminshall (caddr_t)&hisctladdr.sin_addr, hp->h_length); 10626496Sminshall fprintf(stdout, "Trying %s...\n", 10725904Skarels inet_ntoa(hisctladdr.sin_addr)); 10826813Skarels (void) close(s); 10926813Skarels s = socket(hisctladdr.sin_family, SOCK_STREAM, 0); 11026813Skarels if (s < 0) { 11126813Skarels perror("ftp: socket"); 11226813Skarels code = -1; 11326813Skarels return (0); 11426813Skarels } 11525904Skarels continue; 11625904Skarels } 11710296Ssam perror("ftp: connect"); 11826048Sminshall code = -1; 11910296Ssam goto bad; 12010296Ssam } 12111627Ssam len = sizeof (myctladdr); 12238133Srick if (getsockname(s, (struct sockaddr *)&myctladdr, &len) < 0) { 12311627Ssam perror("ftp: getsockname"); 12426048Sminshall code = -1; 12510296Ssam goto bad; 12610296Ssam } 12710296Ssam cin = fdopen(s, "r"); 12810296Ssam cout = fdopen(s, "w"); 12911219Ssam if (cin == NULL || cout == NULL) { 13010296Ssam fprintf(stderr, "ftp: fdopen failed.\n"); 13110296Ssam if (cin) 13226496Sminshall (void) fclose(cin); 13310296Ssam if (cout) 13426496Sminshall (void) fclose(cout); 13526048Sminshall code = -1; 13610296Ssam goto bad; 13710296Ssam } 13810296Ssam if (verbose) 13926067Sminshall printf("Connected to %s.\n", hostname); 14027687Sminshall if (getreply(0) > 2) { /* read startup message from server */ 14126048Sminshall if (cin) 14226496Sminshall (void) fclose(cin); 14326048Sminshall if (cout) 14426496Sminshall (void) fclose(cout); 14526048Sminshall code = -1; 14626048Sminshall goto bad; 14726048Sminshall } 14827687Sminshall #ifdef SO_OOBINLINE 14927687Sminshall { 15027687Sminshall int on = 1; 15126048Sminshall 15240193Sbostic if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on)) 15327687Sminshall < 0 && debug) { 15427687Sminshall perror("ftp: setsockopt"); 15527687Sminshall } 15627687Sminshall } 15738133Srick #endif /* SO_OOBINLINE */ 15826048Sminshall 15925904Skarels return (hostname); 16010296Ssam bad: 16126496Sminshall (void) close(s); 16225904Skarels return ((char *)0); 16310296Ssam } 16410296Ssam 16525904Skarels login(host) 16625904Skarels char *host; 16710296Ssam { 16826048Sminshall char tmp[80]; 16935659Sbostic char *user, *pass, *acct, *getlogin(), *getpass(); 17026048Sminshall int n, aflag = 0; 17110296Ssam 17226048Sminshall user = pass = acct = 0; 17326048Sminshall if (ruserpass(host, &user, &pass, &acct) < 0) { 17426048Sminshall code = -1; 17526048Sminshall return(0); 17626048Sminshall } 17737458Skarels while (user == NULL) { 17826048Sminshall char *myname = getlogin(); 17926048Sminshall 18026048Sminshall if (myname == NULL) { 18126048Sminshall struct passwd *pp = getpwuid(getuid()); 18226048Sminshall 18326448Slepreau if (pp != NULL) 18426048Sminshall myname = pp->pw_name; 18526048Sminshall } 18637458Skarels if (myname) 18737458Skarels printf("Name (%s:%s): ", host, myname); 18837458Skarels else 18937458Skarels printf("Name (%s): ", host); 19026048Sminshall (void) fgets(tmp, sizeof(tmp) - 1, stdin); 19126048Sminshall tmp[strlen(tmp) - 1] = '\0'; 19226448Slepreau if (*tmp == '\0') 19326048Sminshall user = myname; 19426448Slepreau else 19526048Sminshall user = tmp; 19626048Sminshall } 19710296Ssam n = command("USER %s", user); 19826048Sminshall if (n == CONTINUE) { 19926448Slepreau if (pass == NULL) 20035659Sbostic pass = getpass("Password:"); 20110296Ssam n = command("PASS %s", pass); 20226048Sminshall } 20310296Ssam if (n == CONTINUE) { 20426048Sminshall aflag++; 20535659Sbostic acct = getpass("Account:"); 20610296Ssam n = command("ACCT %s", acct); 20710296Ssam } 20810296Ssam if (n != COMPLETE) { 20910296Ssam fprintf(stderr, "Login failed.\n"); 21010296Ssam return (0); 21110296Ssam } 21226448Slepreau if (!aflag && acct != NULL) 21326048Sminshall (void) command("ACCT %s", acct); 21426448Slepreau if (proxy) 21526048Sminshall return(1); 21626048Sminshall for (n = 0; n < macnum; ++n) { 21726048Sminshall if (!strcmp("init", macros[n].mac_name)) { 21826496Sminshall (void) strcpy(line, "$init"); 21926048Sminshall makeargv(); 22026048Sminshall domacro(margc, margv); 22126048Sminshall break; 22226048Sminshall } 22326048Sminshall } 22410296Ssam return (1); 22510296Ssam } 22610296Ssam 22740193Sbostic void 22826048Sminshall cmdabort() 22926048Sminshall { 23026048Sminshall extern jmp_buf ptabort; 23126048Sminshall 23226048Sminshall printf("\n"); 23326048Sminshall (void) fflush(stdout); 23426048Sminshall abrtflag++; 23526448Slepreau if (ptflag) 23626048Sminshall longjmp(ptabort,1); 23726048Sminshall } 23826048Sminshall 23938133Srick /*VARARGS*/ 24038133Srick command(va_alist) 24138133Srick va_dcl 24238133Srick { 24338133Srick va_list ap; 24410296Ssam char *fmt; 24538133Srick int r; 24640193Sbostic sig_t oldintr; 24740193Sbostic void cmdabort(); 24810296Ssam 24926048Sminshall abrtflag = 0; 25010296Ssam if (debug) { 25110296Ssam printf("---> "); 25238133Srick va_start(ap); 25338133Srick fmt = va_arg(ap, char *); 25438133Srick if (strncmp("PASS ", fmt, 5) == 0) 25538133Srick printf("PASS XXXX"); 25638133Srick else 25738133Srick vfprintf(stdout, fmt, ap); 25838133Srick va_end(ap); 25910296Ssam printf("\n"); 26010296Ssam (void) fflush(stdout); 26110296Ssam } 26211219Ssam if (cout == NULL) { 26311219Ssam perror ("No control connection for command"); 26426048Sminshall code = -1; 26511219Ssam return (0); 26611219Ssam } 26738133Srick oldintr = signal(SIGINT, cmdabort); 26838133Srick va_start(ap); 26938133Srick fmt = va_arg(ap, char *); 27038133Srick vfprintf(cout, fmt, ap); 27138133Srick va_end(ap); 27210296Ssam fprintf(cout, "\r\n"); 27310296Ssam (void) fflush(cout); 27426048Sminshall cpend = 1; 27526048Sminshall r = getreply(!strcmp(fmt, "QUIT")); 27626448Slepreau if (abrtflag && oldintr != SIG_IGN) 27726048Sminshall (*oldintr)(); 27826048Sminshall (void) signal(SIGINT, oldintr); 27926048Sminshall return(r); 28010296Ssam } 28110296Ssam 28237229Skarels char reply_string[BUFSIZ]; /* last line of previous reply */ 28336935Skarels 28410296Ssam #include <ctype.h> 28510296Ssam 28610296Ssam getreply(expecteof) 28710296Ssam int expecteof; 28810296Ssam { 28911219Ssam register int c, n; 29026048Sminshall register int dig; 29136935Skarels register char *cp; 29238133Srick int originalcode = 0, continuation = 0; 29340193Sbostic sig_t oldintr; 29426048Sminshall int pflag = 0; 29526048Sminshall char *pt = pasv; 29640193Sbostic void cmdabort(); 29710296Ssam 29838133Srick oldintr = signal(SIGINT, cmdabort); 29910296Ssam for (;;) { 30010296Ssam dig = n = code = 0; 30137229Skarels cp = reply_string; 30210296Ssam while ((c = getc(cin)) != '\n') { 30327687Sminshall if (c == IAC) { /* handle telnet commands */ 30427687Sminshall switch (c = getc(cin)) { 30527687Sminshall case WILL: 30627687Sminshall case WONT: 30727687Sminshall c = getc(cin); 30838133Srick fprintf(cout, "%c%c%c", IAC, DONT, c); 30927687Sminshall (void) fflush(cout); 31027687Sminshall break; 31127687Sminshall case DO: 31227687Sminshall case DONT: 31327687Sminshall c = getc(cin); 31438133Srick fprintf(cout, "%c%c%c", IAC, WONT, c); 31527687Sminshall (void) fflush(cout); 31627687Sminshall break; 31727687Sminshall default: 31827687Sminshall break; 31927687Sminshall } 32027687Sminshall continue; 32127687Sminshall } 32210296Ssam dig++; 32310296Ssam if (c == EOF) { 32426048Sminshall if (expecteof) { 32526048Sminshall (void) signal(SIGINT,oldintr); 32626048Sminshall code = 221; 32710296Ssam return (0); 32826048Sminshall } 32910296Ssam lostpeer(); 33026048Sminshall if (verbose) { 33126048Sminshall printf("421 Service not available, remote server has closed connection\n"); 33226048Sminshall (void) fflush(stdout); 33326048Sminshall } 33433772Scsvsj code = 421; 33533772Scsvsj return(4); 33610296Ssam } 33726048Sminshall if (c != '\r' && (verbose > 0 || 33826048Sminshall (verbose > -1 && n == '5' && dig > 4))) { 33926448Slepreau if (proxflag && 34026448Slepreau (dig == 1 || dig == 5 && verbose == 0)) 34126048Sminshall printf("%s:",hostname); 34226496Sminshall (void) putchar(c); 34326048Sminshall } 34410296Ssam if (dig < 4 && isdigit(c)) 34510296Ssam code = code * 10 + (c - '0'); 34626448Slepreau if (!pflag && code == 227) 34726048Sminshall pflag = 1; 34826448Slepreau if (dig > 4 && pflag == 1 && isdigit(c)) 34926048Sminshall pflag = 2; 35026048Sminshall if (pflag == 2) { 35126448Slepreau if (c != '\r' && c != ')') 35226048Sminshall *pt++ = c; 35326048Sminshall else { 35426048Sminshall *pt = '\0'; 35526048Sminshall pflag = 3; 35626048Sminshall } 35726048Sminshall } 35826048Sminshall if (dig == 4 && c == '-') { 35926448Slepreau if (continuation) 36026048Sminshall code = 0; 36110296Ssam continuation++; 36226048Sminshall } 36310296Ssam if (n == 0) 36410296Ssam n = c; 36537229Skarels if (cp < &reply_string[sizeof(reply_string) - 1]) 36637229Skarels *cp++ = c; 36710296Ssam } 36826048Sminshall if (verbose > 0 || verbose > -1 && n == '5') { 36926496Sminshall (void) putchar(c); 37011346Ssam (void) fflush (stdout); 37111346Ssam } 37210296Ssam if (continuation && code != originalcode) { 37310296Ssam if (originalcode == 0) 37410296Ssam originalcode = code; 37510296Ssam continue; 37610296Ssam } 37736935Skarels *cp = '\0'; 37826448Slepreau if (n != '1') 37926048Sminshall cpend = 0; 38026048Sminshall (void) signal(SIGINT,oldintr); 38126448Slepreau if (code == 421 || originalcode == 421) 38226048Sminshall lostpeer(); 38326448Slepreau if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN) 38426048Sminshall (*oldintr)(); 38525907Smckusick return (n - '0'); 38610296Ssam } 38710296Ssam } 38810296Ssam 38926048Sminshall empty(mask, sec) 39027687Sminshall struct fd_set *mask; 39126048Sminshall int sec; 39226048Sminshall { 39326048Sminshall struct timeval t; 39426048Sminshall 39526048Sminshall t.tv_sec = (long) sec; 39626048Sminshall t.tv_usec = 0; 39727687Sminshall return(select(32, mask, (struct fd_set *) 0, (struct fd_set *) 0, &t)); 39826048Sminshall } 39926048Sminshall 40010296Ssam jmp_buf sendabort; 40110296Ssam 40240193Sbostic void 40310296Ssam abortsend() 40410296Ssam { 40510296Ssam 40626048Sminshall mflag = 0; 40726048Sminshall abrtflag = 0; 40838133Srick printf("\nsend aborted\nwaiting for remote to finish abort\n"); 40926048Sminshall (void) fflush(stdout); 41010296Ssam longjmp(sendabort, 1); 41110296Ssam } 41210296Ssam 41336940Skarels #define HASHBYTES 1024 41436940Skarels 41537225Skarels sendrequest(cmd, local, remote, printnames) 41610296Ssam char *cmd, *local, *remote; 41737225Skarels int printnames; 41810296Ssam { 41940193Sbostic struct stat st; 42040193Sbostic struct timeval start, stop; 42140193Sbostic register int c, d; 42235659Sbostic FILE *fin, *dout = 0, *popen(); 42338133Srick int (*closefunc)(), pclose(), fclose(); 42440193Sbostic sig_t oldintr, oldintp; 42536940Skarels long bytes = 0, hashbytes = HASHBYTES; 42640193Sbostic char *lmode, buf[BUFSIZ], *bufp; 42740193Sbostic void abortsend(); 42810296Ssam 42937225Skarels if (verbose && printnames) { 43037225Skarels if (local && *local != '-') 43137225Skarels printf("local: %s ", local); 43237225Skarels if (remote) 43337225Skarels printf("remote: %s\n", remote); 43437225Skarels } 43526048Sminshall if (proxy) { 43626048Sminshall proxtrans(cmd, local, remote); 43726048Sminshall return; 43826048Sminshall } 43938033Skarels if (curtype != type) 44038033Skarels changetype(type, 0); 44110296Ssam closefunc = NULL; 44226048Sminshall oldintr = NULL; 44326048Sminshall oldintp = NULL; 44440193Sbostic lmode = "w"; 44526048Sminshall if (setjmp(sendabort)) { 44626048Sminshall while (cpend) { 44726048Sminshall (void) getreply(0); 44826048Sminshall } 44926048Sminshall if (data >= 0) { 45026048Sminshall (void) close(data); 45126048Sminshall data = -1; 45226048Sminshall } 45326448Slepreau if (oldintr) 45426048Sminshall (void) signal(SIGINT,oldintr); 45526448Slepreau if (oldintp) 45626048Sminshall (void) signal(SIGPIPE,oldintp); 45726048Sminshall code = -1; 45826048Sminshall return; 45926048Sminshall } 46010296Ssam oldintr = signal(SIGINT, abortsend); 46110296Ssam if (strcmp(local, "-") == 0) 46210296Ssam fin = stdin; 46310296Ssam else if (*local == '|') { 46426048Sminshall oldintp = signal(SIGPIPE,SIG_IGN); 46535659Sbostic fin = popen(local + 1, "r"); 46610296Ssam if (fin == NULL) { 46726048Sminshall perror(local + 1); 46826048Sminshall (void) signal(SIGINT, oldintr); 46926048Sminshall (void) signal(SIGPIPE, oldintp); 47026048Sminshall code = -1; 47126048Sminshall return; 47210296Ssam } 47335659Sbostic closefunc = pclose; 47410296Ssam } else { 47510296Ssam fin = fopen(local, "r"); 47610296Ssam if (fin == NULL) { 47738202Srick fprintf(stderr, "local: %s: %s\n", local, 47838202Srick strerror(errno)); 47926048Sminshall (void) signal(SIGINT, oldintr); 48026048Sminshall code = -1; 48126048Sminshall return; 48210296Ssam } 48310296Ssam closefunc = fclose; 48410296Ssam if (fstat(fileno(fin), &st) < 0 || 48510296Ssam (st.st_mode&S_IFMT) != S_IFREG) { 48626496Sminshall fprintf(stdout, "%s: not a plain file.\n", local); 48726048Sminshall (void) signal(SIGINT, oldintr); 48836935Skarels fclose(fin); 48926048Sminshall code = -1; 49026048Sminshall return; 49110296Ssam } 49210296Ssam } 49326048Sminshall if (initconn()) { 49426048Sminshall (void) signal(SIGINT, oldintr); 49526448Slepreau if (oldintp) 49626048Sminshall (void) signal(SIGPIPE, oldintp); 49726048Sminshall code = -1; 49836935Skarels if (closefunc != NULL) 49936935Skarels (*closefunc)(fin); 50026048Sminshall return; 50126048Sminshall } 50226448Slepreau if (setjmp(sendabort)) 50326048Sminshall goto abort; 50436935Skarels 50537225Skarels if (restart_point && 50637225Skarels (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) { 50737225Skarels if (fseek(fin, (long) restart_point, 0) < 0) { 50838202Srick fprintf(stderr, "local: %s: %s\n", local, 50938202Srick strerror(errno)); 51037225Skarels restart_point = 0; 51137225Skarels if (closefunc != NULL) 51237225Skarels (*closefunc)(fin); 51337225Skarels return; 51437225Skarels } 51537225Skarels if (command("REST %ld", (long) restart_point) 51637225Skarels != CONTINUE) { 51737225Skarels restart_point = 0; 51837225Skarels if (closefunc != NULL) 51937225Skarels (*closefunc)(fin); 52037225Skarels return; 52137225Skarels } 52237225Skarels restart_point = 0; 52340193Sbostic lmode = "r+w"; 52437225Skarels } 52510296Ssam if (remote) { 52626048Sminshall if (command("%s %s", cmd, remote) != PRELIM) { 52726048Sminshall (void) signal(SIGINT, oldintr); 52826448Slepreau if (oldintp) 52926048Sminshall (void) signal(SIGPIPE, oldintp); 53036935Skarels if (closefunc != NULL) 53136935Skarels (*closefunc)(fin); 53226048Sminshall return; 53326048Sminshall } 53410296Ssam } else 53526048Sminshall if (command("%s", cmd) != PRELIM) { 53626048Sminshall (void) signal(SIGINT, oldintr); 53726448Slepreau if (oldintp) 53826048Sminshall (void) signal(SIGPIPE, oldintp); 53936935Skarels if (closefunc != NULL) 54036935Skarels (*closefunc)(fin); 54126048Sminshall return; 54226048Sminshall } 54340193Sbostic dout = dataconn(lmode); 54426448Slepreau if (dout == NULL) 54526048Sminshall goto abort; 54626496Sminshall (void) gettimeofday(&start, (struct timezone *)0); 54736935Skarels oldintp = signal(SIGPIPE, SIG_IGN); 548*42278Skarels switch (curtype) { 54911219Ssam 55011219Ssam case TYPE_I: 55111219Ssam case TYPE_L: 55211346Ssam errno = d = 0; 55336942Skarels while ((c = read(fileno(fin), buf, sizeof (buf))) > 0) { 55411219Ssam bytes += c; 55536942Skarels for (bufp = buf; c > 0; c -= d, bufp += d) 55636942Skarels if ((d = write(fileno(dout), bufp, c)) <= 0) 55736942Skarels break; 55811651Ssam if (hash) { 55936940Skarels while (bytes >= hashbytes) { 56036940Skarels (void) putchar('#'); 56136940Skarels hashbytes += HASHBYTES; 56236940Skarels } 56326496Sminshall (void) fflush(stdout); 56411651Ssam } 56511219Ssam } 56613213Ssam if (hash && bytes > 0) { 56736940Skarels if (bytes < HASHBYTES) 56836940Skarels (void) putchar('#'); 56926496Sminshall (void) putchar('\n'); 57026496Sminshall (void) fflush(stdout); 57111651Ssam } 57211219Ssam if (c < 0) 57338202Srick fprintf(stderr, "local: %s: %s\n", local, 57438202Srick strerror(errno)); 57536942Skarels if (d <= 0) { 57636942Skarels if (d == 0) 57736942Skarels fprintf(stderr, "netout: write returned 0?\n"); 57836942Skarels else if (errno != EPIPE) 57936935Skarels perror("netout"); 58036935Skarels bytes = -1; 58136935Skarels } 58211219Ssam break; 58311219Ssam 58411219Ssam case TYPE_A: 58511219Ssam while ((c = getc(fin)) != EOF) { 58611219Ssam if (c == '\n') { 58711651Ssam while (hash && (bytes >= hashbytes)) { 58826496Sminshall (void) putchar('#'); 58926496Sminshall (void) fflush(stdout); 59036940Skarels hashbytes += HASHBYTES; 59111651Ssam } 59211219Ssam if (ferror(dout)) 59311219Ssam break; 59426496Sminshall (void) putc('\r', dout); 59511219Ssam bytes++; 59611219Ssam } 59726496Sminshall (void) putc(c, dout); 59811219Ssam bytes++; 59926048Sminshall /* if (c == '\r') { */ 60026496Sminshall /* (void) putc('\0', dout); /* this violates rfc */ 60126048Sminshall /* bytes++; */ 60226048Sminshall /* } */ 60311219Ssam } 60411651Ssam if (hash) { 60513213Ssam if (bytes < hashbytes) 60626496Sminshall (void) putchar('#'); 60726496Sminshall (void) putchar('\n'); 60826496Sminshall (void) fflush(stdout); 60911651Ssam } 61011219Ssam if (ferror(fin)) 61138202Srick fprintf(stderr, "local: %s: %s\n", local, 61238202Srick strerror(errno)); 61336935Skarels if (ferror(dout)) { 61436935Skarels if (errno != EPIPE) 61536935Skarels perror("netout"); 61636935Skarels bytes = -1; 61736935Skarels } 61811219Ssam break; 61910296Ssam } 62026496Sminshall (void) gettimeofday(&stop, (struct timezone *)0); 62110296Ssam if (closefunc != NULL) 62226048Sminshall (*closefunc)(fin); 62310296Ssam (void) fclose(dout); 62426048Sminshall (void) getreply(0); 62526048Sminshall (void) signal(SIGINT, oldintr); 62636935Skarels if (oldintp) 62736935Skarels (void) signal(SIGPIPE, oldintp); 62835699Sbostic if (bytes > 0) 62937225Skarels ptransfer("sent", bytes, &start, &stop); 63010296Ssam return; 63126048Sminshall abort: 63226496Sminshall (void) gettimeofday(&stop, (struct timezone *)0); 63326048Sminshall (void) signal(SIGINT, oldintr); 63426448Slepreau if (oldintp) 63526048Sminshall (void) signal(SIGPIPE, oldintp); 63626048Sminshall if (!cpend) { 63726048Sminshall code = -1; 63826048Sminshall return; 63926048Sminshall } 64026048Sminshall if (data >= 0) { 64126048Sminshall (void) close(data); 64226048Sminshall data = -1; 64326048Sminshall } 64426448Slepreau if (dout) 64526048Sminshall (void) fclose(dout); 64626048Sminshall (void) getreply(0); 64726048Sminshall code = -1; 64810296Ssam if (closefunc != NULL && fin != NULL) 64926048Sminshall (*closefunc)(fin); 65035699Sbostic if (bytes > 0) 65137225Skarels ptransfer("sent", bytes, &start, &stop); 65210296Ssam } 65310296Ssam 65410296Ssam jmp_buf recvabort; 65510296Ssam 65640193Sbostic void 65710296Ssam abortrecv() 65810296Ssam { 65910296Ssam 66026048Sminshall mflag = 0; 66126048Sminshall abrtflag = 0; 66238133Srick printf("\nreceive aborted\nwaiting for remote to finish abort\n"); 66326048Sminshall (void) fflush(stdout); 66410296Ssam longjmp(recvabort, 1); 66510296Ssam } 66610296Ssam 66740193Sbostic recvrequest(cmd, local, remote, lmode, printnames) 66840193Sbostic char *cmd, *local, *remote, *lmode; 66910296Ssam { 67035659Sbostic FILE *fout, *din = 0, *popen(); 67138133Srick int (*closefunc)(), pclose(), fclose(); 67240193Sbostic sig_t oldintr, oldintp; 67338133Srick int is_retr, tcrflag, bare_lfs = 0; 67438133Srick char *gunique(); 67538133Srick static int bufsize; 67636944Skarels static char *buf; 67736940Skarels long bytes = 0, hashbytes = HASHBYTES; 67811346Ssam register int c, d; 67910296Ssam struct timeval start, stop; 68036940Skarels struct stat st; 68140193Sbostic off_t lseek(); 68240193Sbostic void abortrecv(); 68340193Sbostic char *malloc(); 68410296Ssam 68536935Skarels is_retr = strcmp(cmd, "RETR") == 0; 68637225Skarels if (is_retr && verbose && printnames) { 68737225Skarels if (local && *local != '-') 68837225Skarels printf("local: %s ", local); 68937225Skarels if (remote) 69037225Skarels printf("remote: %s\n", remote); 69137225Skarels } 69236935Skarels if (proxy && is_retr) { 69326048Sminshall proxtrans(cmd, local, remote); 69426048Sminshall return; 69526048Sminshall } 69610296Ssam closefunc = NULL; 69726048Sminshall oldintr = NULL; 69826048Sminshall oldintp = NULL; 69936935Skarels tcrflag = !crflag && is_retr; 70026048Sminshall if (setjmp(recvabort)) { 70126048Sminshall while (cpend) { 70226048Sminshall (void) getreply(0); 70326048Sminshall } 70426048Sminshall if (data >= 0) { 70526048Sminshall (void) close(data); 70626048Sminshall data = -1; 70726048Sminshall } 70826448Slepreau if (oldintr) 70926048Sminshall (void) signal(SIGINT, oldintr); 71026048Sminshall code = -1; 71126048Sminshall return; 71226048Sminshall } 71310296Ssam oldintr = signal(SIGINT, abortrecv); 71426048Sminshall if (strcmp(local, "-") && *local != '|') { 71510296Ssam if (access(local, 2) < 0) { 71626048Sminshall char *dir = rindex(local, '/'); 71710296Ssam 71826048Sminshall if (errno != ENOENT && errno != EACCES) { 71938202Srick fprintf(stderr, "local: %s: %s\n", local, 72038202Srick strerror(errno)); 72126048Sminshall (void) signal(SIGINT, oldintr); 72226048Sminshall code = -1; 72326048Sminshall return; 72410296Ssam } 72526048Sminshall if (dir != NULL) 72626048Sminshall *dir = 0; 72726048Sminshall d = access(dir ? local : ".", 2); 72826048Sminshall if (dir != NULL) 72926048Sminshall *dir = '/'; 73026048Sminshall if (d < 0) { 73138202Srick fprintf(stderr, "local: %s: %s\n", local, 73238202Srick strerror(errno)); 73326048Sminshall (void) signal(SIGINT, oldintr); 73426048Sminshall code = -1; 73526048Sminshall return; 73626048Sminshall } 73726048Sminshall if (!runique && errno == EACCES && 73836935Skarels chmod(local, 0600) < 0) { 73938202Srick fprintf(stderr, "local: %s: %s\n", local, 74038202Srick strerror(errno)); 74126048Sminshall (void) signal(SIGINT, oldintr); 74238202Srick (void) signal(SIGINT, oldintr); 74326048Sminshall code = -1; 74426048Sminshall return; 74526048Sminshall } 74626048Sminshall if (runique && errno == EACCES && 74726048Sminshall (local = gunique(local)) == NULL) { 74826048Sminshall (void) signal(SIGINT, oldintr); 74926048Sminshall code = -1; 75026048Sminshall return; 75126048Sminshall } 75210296Ssam } 75326048Sminshall else if (runique && (local = gunique(local)) == NULL) { 75426048Sminshall (void) signal(SIGINT, oldintr); 75526048Sminshall code = -1; 75626048Sminshall return; 75726048Sminshall } 75826048Sminshall } 75938033Skarels if (!is_retr) { 76038033Skarels if (curtype != TYPE_A) 76138033Skarels changetype(TYPE_A, 0); 76238033Skarels } else if (curtype != type) 76338033Skarels changetype(type, 0); 76426048Sminshall if (initconn()) { 76526048Sminshall (void) signal(SIGINT, oldintr); 76626048Sminshall code = -1; 76726048Sminshall return; 76826048Sminshall } 76926448Slepreau if (setjmp(recvabort)) 77026048Sminshall goto abort; 77138033Skarels if (is_retr && restart_point && 77238033Skarels command("REST %ld", (long) restart_point) != CONTINUE) 77338033Skarels return; 77410296Ssam if (remote) { 77526048Sminshall if (command("%s %s", cmd, remote) != PRELIM) { 77626048Sminshall (void) signal(SIGINT, oldintr); 77726048Sminshall return; 77826048Sminshall } 77926048Sminshall } else { 78026048Sminshall if (command("%s", cmd) != PRELIM) { 78126048Sminshall (void) signal(SIGINT, oldintr); 78226048Sminshall return; 78326048Sminshall } 78426048Sminshall } 78526048Sminshall din = dataconn("r"); 78626048Sminshall if (din == NULL) 78726048Sminshall goto abort; 78826448Slepreau if (strcmp(local, "-") == 0) 78910296Ssam fout = stdout; 79010296Ssam else if (*local == '|') { 79126048Sminshall oldintp = signal(SIGPIPE, SIG_IGN); 79235659Sbostic fout = popen(local + 1, "w"); 79326048Sminshall if (fout == NULL) { 79426048Sminshall perror(local+1); 79526048Sminshall goto abort; 79626048Sminshall } 79735659Sbostic closefunc = pclose; 79836940Skarels } else { 79940193Sbostic fout = fopen(local, lmode); 80026048Sminshall if (fout == NULL) { 80138202Srick fprintf(stderr, "local: %s: %s\n", local, 80238202Srick strerror(errno)); 80326048Sminshall goto abort; 80426048Sminshall } 80510296Ssam closefunc = fclose; 80610296Ssam } 80736940Skarels if (fstat(fileno(fout), &st) < 0 || st.st_blksize == 0) 80836940Skarels st.st_blksize = BUFSIZ; 80936940Skarels if (st.st_blksize > bufsize) { 81036940Skarels if (buf) 81136940Skarels (void) free(buf); 81238133Srick buf = malloc((unsigned)st.st_blksize); 81336940Skarels if (buf == NULL) { 81436940Skarels perror("malloc"); 81536944Skarels bufsize = 0; 81636940Skarels goto abort; 81736940Skarels } 81836940Skarels bufsize = st.st_blksize; 81936940Skarels } 82026496Sminshall (void) gettimeofday(&start, (struct timezone *)0); 82138033Skarels switch (curtype) { 82211219Ssam 82311219Ssam case TYPE_I: 82411219Ssam case TYPE_L: 82537225Skarels if (restart_point && 82637225Skarels lseek(fileno(fout), (long) restart_point, L_SET) < 0) { 82738202Srick fprintf(stderr, "local: %s: %s\n", local, 82838202Srick strerror(errno)); 82937225Skarels if (closefunc != NULL) 83037225Skarels (*closefunc)(fout); 83137225Skarels return; 83237225Skarels } 83311346Ssam errno = d = 0; 83436940Skarels while ((c = read(fileno(din), buf, bufsize)) > 0) { 83536944Skarels if ((d = write(fileno(fout), buf, c)) != c) 83611219Ssam break; 83711219Ssam bytes += c; 83811651Ssam if (hash) { 83936940Skarels while (bytes >= hashbytes) { 84036940Skarels (void) putchar('#'); 84136940Skarels hashbytes += HASHBYTES; 84236940Skarels } 84326496Sminshall (void) fflush(stdout); 84411651Ssam } 84511219Ssam } 84613213Ssam if (hash && bytes > 0) { 84736940Skarels if (bytes < HASHBYTES) 84836940Skarels (void) putchar('#'); 84926496Sminshall (void) putchar('\n'); 85026496Sminshall (void) fflush(stdout); 85111651Ssam } 85236935Skarels if (c < 0) { 85336935Skarels if (errno != EPIPE) 85436935Skarels perror("netin"); 85536935Skarels bytes = -1; 85636935Skarels } 85736942Skarels if (d < c) { 85836942Skarels if (d < 0) 85938202Srick fprintf(stderr, "local: %s: %s\n", local, 86038202Srick strerror(errno)); 86136942Skarels else 86236942Skarels fprintf(stderr, "%s: short write\n", local); 86336942Skarels } 86411219Ssam break; 86511219Ssam 86611219Ssam case TYPE_A: 86737225Skarels if (restart_point) { 86840193Sbostic register int i, n, ch; 86937225Skarels 87037225Skarels if (fseek(fout, 0L, L_SET) < 0) 87137225Skarels goto done; 87237225Skarels n = restart_point; 87340193Sbostic for (i = 0; i++ < n;) { 87440193Sbostic if ((ch = getc(fout)) == EOF) 87537225Skarels goto done; 87640193Sbostic if (ch == '\n') 87737225Skarels i++; 87837225Skarels } 87937225Skarels if (fseek(fout, 0L, L_INCR) < 0) { 88037225Skarels done: 88138202Srick fprintf(stderr, "local: %s: %s\n", local, 88238202Srick strerror(errno)); 88337225Skarels if (closefunc != NULL) 88437225Skarels (*closefunc)(fout); 88537225Skarels return; 88637225Skarels } 88737225Skarels } 88811219Ssam while ((c = getc(din)) != EOF) { 88938133Srick if (c == '\n') 89038133Srick bare_lfs++; 89127749Sminshall while (c == '\r') { 89211651Ssam while (hash && (bytes >= hashbytes)) { 89326496Sminshall (void) putchar('#'); 89426496Sminshall (void) fflush(stdout); 89536940Skarels hashbytes += HASHBYTES; 89611651Ssam } 89710296Ssam bytes++; 89826048Sminshall if ((c = getc(din)) != '\n' || tcrflag) { 89936940Skarels if (ferror(fout)) 90036940Skarels goto break2; 90136940Skarels (void) putc('\r', fout); 90236942Skarels if (c == '\0') { 90336942Skarels bytes++; 90436940Skarels goto contin2; 90536942Skarels } 90636942Skarels if (c == EOF) 90736942Skarels goto contin2; 90811219Ssam } 90911219Ssam } 91036940Skarels (void) putc(c, fout); 91111219Ssam bytes++; 91236940Skarels contin2: ; 91310296Ssam } 91436940Skarels break2: 91538133Srick if (bare_lfs) { 91638133Srick printf("WARNING! %d bare linefeeds received in ASCII mode\n", bare_lfs); 91738133Srick printf("File may not have transferred correctly.\n"); 91838133Srick } 91911651Ssam if (hash) { 92013213Ssam if (bytes < hashbytes) 92126496Sminshall (void) putchar('#'); 92226496Sminshall (void) putchar('\n'); 92326496Sminshall (void) fflush(stdout); 92411651Ssam } 92536944Skarels if (ferror(din)) { 92636935Skarels if (errno != EPIPE) 92736944Skarels perror("netin"); 92836935Skarels bytes = -1; 92936935Skarels } 93036940Skarels if (ferror(fout)) 93138202Srick fprintf(stderr, "local: %s: %s\n", local, 93238202Srick strerror(errno)); 93311219Ssam break; 93410296Ssam } 93526448Slepreau if (closefunc != NULL) 93626048Sminshall (*closefunc)(fout); 93726496Sminshall (void) signal(SIGINT, oldintr); 93826448Slepreau if (oldintp) 93926048Sminshall (void) signal(SIGPIPE, oldintp); 94026496Sminshall (void) gettimeofday(&stop, (struct timezone *)0); 94110296Ssam (void) fclose(din); 94226048Sminshall (void) getreply(0); 94336935Skarels if (bytes > 0 && is_retr) 94437225Skarels ptransfer("received", bytes, &start, &stop); 94526048Sminshall return; 94626048Sminshall abort: 94726048Sminshall 94827687Sminshall /* abort using RFC959 recommended IP,SYNC sequence */ 94926048Sminshall 95026496Sminshall (void) gettimeofday(&stop, (struct timezone *)0); 95126448Slepreau if (oldintp) 95226048Sminshall (void) signal(SIGPIPE, oldintr); 95338133Srick (void) signal(SIGINT, SIG_IGN); 95426048Sminshall if (!cpend) { 95526048Sminshall code = -1; 95638133Srick (void) signal(SIGINT, oldintr); 95726048Sminshall return; 95826048Sminshall } 95926048Sminshall 96038133Srick abort_remote(din); 96126048Sminshall code = -1; 96226048Sminshall if (data >= 0) { 96326048Sminshall (void) close(data); 96426048Sminshall data = -1; 96526048Sminshall } 96626448Slepreau if (closefunc != NULL && fout != NULL) 96726048Sminshall (*closefunc)(fout); 96826448Slepreau if (din) 96926048Sminshall (void) fclose(din); 97035699Sbostic if (bytes > 0) 97137225Skarels ptransfer("received", bytes, &start, &stop); 97238133Srick (void) signal(SIGINT, oldintr); 97310296Ssam } 97410296Ssam 97510296Ssam /* 97640193Sbostic * Need to start a listen on the data channel before we send the command, 97740193Sbostic * otherwise the server's connect may fail. 97810296Ssam */ 97910296Ssam initconn() 98010296Ssam { 98110296Ssam register char *p, *a; 98226048Sminshall int result, len, tmpno = 0; 98326993Skarels int on = 1; 98410296Ssam 98511651Ssam noport: 98610296Ssam data_addr = myctladdr; 98711651Ssam if (sendport) 98811651Ssam data_addr.sin_port = 0; /* let system pick one */ 98911651Ssam if (data != -1) 99038133Srick (void) close(data); 99118287Sralph data = socket(AF_INET, SOCK_STREAM, 0); 99210296Ssam if (data < 0) { 99310296Ssam perror("ftp: socket"); 99426448Slepreau if (tmpno) 99526048Sminshall sendport = 1; 99610296Ssam return (1); 99710296Ssam } 99812397Ssam if (!sendport) 99927687Sminshall if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) { 100033224Sbostic perror("ftp: setsockopt (reuse address)"); 100112397Ssam goto bad; 100212397Ssam } 100326496Sminshall if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) { 100410296Ssam perror("ftp: bind"); 100510296Ssam goto bad; 100610296Ssam } 100710296Ssam if (options & SO_DEBUG && 100827687Sminshall setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0) 100910296Ssam perror("ftp: setsockopt (ignored)"); 101011627Ssam len = sizeof (data_addr); 101138133Srick if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) { 101211627Ssam perror("ftp: getsockname"); 101310296Ssam goto bad; 101410296Ssam } 101526448Slepreau if (listen(data, 1) < 0) 101610296Ssam perror("ftp: listen"); 101711651Ssam if (sendport) { 101811651Ssam a = (char *)&data_addr.sin_addr; 101911651Ssam p = (char *)&data_addr.sin_port; 102010296Ssam #define UC(b) (((int)b)&0xff) 102111651Ssam result = 102211651Ssam command("PORT %d,%d,%d,%d,%d,%d", 102311651Ssam UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]), 102411651Ssam UC(p[0]), UC(p[1])); 102511651Ssam if (result == ERROR && sendport == -1) { 102611651Ssam sendport = 0; 102726048Sminshall tmpno = 1; 102811651Ssam goto noport; 102911651Ssam } 103011651Ssam return (result != COMPLETE); 103111651Ssam } 103226448Slepreau if (tmpno) 103326048Sminshall sendport = 1; 103411651Ssam return (0); 103510296Ssam bad: 103610296Ssam (void) close(data), data = -1; 103726448Slepreau if (tmpno) 103826048Sminshall sendport = 1; 103910296Ssam return (1); 104010296Ssam } 104110296Ssam 104210296Ssam FILE * 104340193Sbostic dataconn(lmode) 104440193Sbostic char *lmode; 104510296Ssam { 104610296Ssam struct sockaddr_in from; 104710296Ssam int s, fromlen = sizeof (from); 104810296Ssam 104926496Sminshall s = accept(data, (struct sockaddr *) &from, &fromlen); 105010296Ssam if (s < 0) { 105110296Ssam perror("ftp: accept"); 105210296Ssam (void) close(data), data = -1; 105310296Ssam return (NULL); 105410296Ssam } 105510296Ssam (void) close(data); 105610296Ssam data = s; 105740193Sbostic return (fdopen(data, lmode)); 105810296Ssam } 105910296Ssam 106037225Skarels ptransfer(direction, bytes, t0, t1) 106137225Skarels char *direction; 106211651Ssam long bytes; 106310296Ssam struct timeval *t0, *t1; 106410296Ssam { 106510296Ssam struct timeval td; 106616437Sleres float s, bs; 106710296Ssam 106835699Sbostic if (verbose) { 106935699Sbostic tvsub(&td, t1, t0); 107035699Sbostic s = td.tv_sec + (td.tv_usec / 1000000.); 107110296Ssam #define nz(x) ((x) == 0 ? 1 : (x)) 107235699Sbostic bs = bytes / nz(s); 107335699Sbostic printf("%ld bytes %s in %.2g seconds (%.2g Kbytes/s)\n", 107435699Sbostic bytes, direction, s, bs / 1024.); 107535699Sbostic } 107610296Ssam } 107710296Ssam 107826496Sminshall /*tvadd(tsum, t0) 107910296Ssam struct timeval *tsum, *t0; 108010296Ssam { 108110296Ssam 108210296Ssam tsum->tv_sec += t0->tv_sec; 108310296Ssam tsum->tv_usec += t0->tv_usec; 108410296Ssam if (tsum->tv_usec > 1000000) 108510296Ssam tsum->tv_sec++, tsum->tv_usec -= 1000000; 108626496Sminshall } */ 108710296Ssam 108810296Ssam tvsub(tdiff, t1, t0) 108910296Ssam struct timeval *tdiff, *t1, *t0; 109010296Ssam { 109110296Ssam 109210296Ssam tdiff->tv_sec = t1->tv_sec - t0->tv_sec; 109310296Ssam tdiff->tv_usec = t1->tv_usec - t0->tv_usec; 109410296Ssam if (tdiff->tv_usec < 0) 109510296Ssam tdiff->tv_sec--, tdiff->tv_usec += 1000000; 109610296Ssam } 109726048Sminshall 109840193Sbostic void 109926048Sminshall psabort() 110026048Sminshall { 110126048Sminshall extern int abrtflag; 110226048Sminshall 110326048Sminshall abrtflag++; 110426048Sminshall } 110526048Sminshall 110626048Sminshall pswitch(flag) 110726048Sminshall int flag; 110826048Sminshall { 110926048Sminshall extern int proxy, abrtflag; 111040193Sbostic sig_t oldintr; 111126048Sminshall static struct comvars { 111226048Sminshall int connect; 111328469Skarels char name[MAXHOSTNAMELEN]; 111426048Sminshall struct sockaddr_in mctl; 111526048Sminshall struct sockaddr_in hctl; 111626048Sminshall FILE *in; 111726048Sminshall FILE *out; 111826048Sminshall int tpe; 111938033Skarels int curtpe; 112026048Sminshall int cpnd; 112126048Sminshall int sunqe; 112226048Sminshall int runqe; 112326048Sminshall int mcse; 112426048Sminshall int ntflg; 112526048Sminshall char nti[17]; 112626048Sminshall char nto[17]; 112726048Sminshall int mapflg; 112826048Sminshall char mi[MAXPATHLEN]; 112926048Sminshall char mo[MAXPATHLEN]; 113038033Skarels } proxstruct, tmpstruct; 113126048Sminshall struct comvars *ip, *op; 113226048Sminshall 113326048Sminshall abrtflag = 0; 113426048Sminshall oldintr = signal(SIGINT, psabort); 113526048Sminshall if (flag) { 113626448Slepreau if (proxy) 113726048Sminshall return; 113826048Sminshall ip = &tmpstruct; 113926048Sminshall op = &proxstruct; 114026048Sminshall proxy++; 114138033Skarels } else { 114226448Slepreau if (!proxy) 114326048Sminshall return; 114426048Sminshall ip = &proxstruct; 114526048Sminshall op = &tmpstruct; 114626048Sminshall proxy = 0; 114726048Sminshall } 114826048Sminshall ip->connect = connected; 114926048Sminshall connected = op->connect; 115028469Skarels if (hostname) { 115128469Skarels (void) strncpy(ip->name, hostname, sizeof(ip->name) - 1); 115228469Skarels ip->name[strlen(ip->name)] = '\0'; 115328469Skarels } else 115428469Skarels ip->name[0] = 0; 115526048Sminshall hostname = op->name; 115626048Sminshall ip->hctl = hisctladdr; 115726048Sminshall hisctladdr = op->hctl; 115826048Sminshall ip->mctl = myctladdr; 115926048Sminshall myctladdr = op->mctl; 116026048Sminshall ip->in = cin; 116126048Sminshall cin = op->in; 116226048Sminshall ip->out = cout; 116326048Sminshall cout = op->out; 116426048Sminshall ip->tpe = type; 116526048Sminshall type = op->tpe; 116638033Skarels ip->curtpe = curtype; 116738033Skarels curtype = op->curtpe; 116826048Sminshall ip->cpnd = cpend; 116926048Sminshall cpend = op->cpnd; 117026048Sminshall ip->sunqe = sunique; 117126048Sminshall sunique = op->sunqe; 117226048Sminshall ip->runqe = runique; 117326048Sminshall runique = op->runqe; 117426048Sminshall ip->mcse = mcase; 117526048Sminshall mcase = op->mcse; 117626048Sminshall ip->ntflg = ntflag; 117726048Sminshall ntflag = op->ntflg; 117826496Sminshall (void) strncpy(ip->nti, ntin, 16); 117926048Sminshall (ip->nti)[strlen(ip->nti)] = '\0'; 118026496Sminshall (void) strcpy(ntin, op->nti); 118126496Sminshall (void) strncpy(ip->nto, ntout, 16); 118226048Sminshall (ip->nto)[strlen(ip->nto)] = '\0'; 118326496Sminshall (void) strcpy(ntout, op->nto); 118426048Sminshall ip->mapflg = mapflag; 118526048Sminshall mapflag = op->mapflg; 118626496Sminshall (void) strncpy(ip->mi, mapin, MAXPATHLEN - 1); 118726048Sminshall (ip->mi)[strlen(ip->mi)] = '\0'; 118826496Sminshall (void) strcpy(mapin, op->mi); 118926496Sminshall (void) strncpy(ip->mo, mapout, MAXPATHLEN - 1); 119026048Sminshall (ip->mo)[strlen(ip->mo)] = '\0'; 119126496Sminshall (void) strcpy(mapout, op->mo); 119226048Sminshall (void) signal(SIGINT, oldintr); 119326048Sminshall if (abrtflag) { 119426048Sminshall abrtflag = 0; 119526048Sminshall (*oldintr)(); 119626448Slepreau } 119726048Sminshall } 119826048Sminshall 119926048Sminshall jmp_buf ptabort; 120026048Sminshall int ptabflg; 120126048Sminshall 120240193Sbostic void 120326048Sminshall abortpt() 120426048Sminshall { 120526048Sminshall printf("\n"); 120626496Sminshall (void) fflush(stdout); 120726048Sminshall ptabflg++; 120826048Sminshall mflag = 0; 120926048Sminshall abrtflag = 0; 121026048Sminshall longjmp(ptabort, 1); 121126048Sminshall } 121226048Sminshall 121326048Sminshall proxtrans(cmd, local, remote) 121426048Sminshall char *cmd, *local, *remote; 121526048Sminshall { 121640193Sbostic sig_t oldintr; 121738133Srick int secndflag = 0, prox_type, nfnd; 121826048Sminshall extern jmp_buf ptabort; 121926048Sminshall char *cmd2; 122026496Sminshall struct fd_set mask; 122140193Sbostic void abortpt(); 122226048Sminshall 122326448Slepreau if (strcmp(cmd, "RETR")) 122426048Sminshall cmd2 = "RETR"; 122526448Slepreau else 122626048Sminshall cmd2 = runique ? "STOU" : "STOR"; 122738033Skarels if ((prox_type = type) == 0) { 122838033Skarels if (unix_server && unix_proxy) 122938033Skarels prox_type = TYPE_I; 123038033Skarels else 123138033Skarels prox_type = TYPE_A; 123238033Skarels } 123338033Skarels if (curtype != prox_type) 123438033Skarels changetype(prox_type, 1); 123526048Sminshall if (command("PASV") != COMPLETE) { 123638033Skarels printf("proxy server does not support third party transfers.\n"); 123726048Sminshall return; 123826048Sminshall } 123926048Sminshall pswitch(0); 124026048Sminshall if (!connected) { 124126048Sminshall printf("No primary connection\n"); 124226048Sminshall pswitch(1); 124326048Sminshall code = -1; 124426048Sminshall return; 124526048Sminshall } 124638033Skarels if (curtype != prox_type) 124738033Skarels changetype(prox_type, 1); 124826048Sminshall if (command("PORT %s", pasv) != COMPLETE) { 124926048Sminshall pswitch(1); 125026048Sminshall return; 125126048Sminshall } 125226448Slepreau if (setjmp(ptabort)) 125326048Sminshall goto abort; 125426048Sminshall oldintr = signal(SIGINT, abortpt); 125526048Sminshall if (command("%s %s", cmd, remote) != PRELIM) { 125626048Sminshall (void) signal(SIGINT, oldintr); 125726048Sminshall pswitch(1); 125826048Sminshall return; 125926048Sminshall } 126026048Sminshall sleep(2); 126126048Sminshall pswitch(1); 126226048Sminshall secndflag++; 126326448Slepreau if (command("%s %s", cmd2, local) != PRELIM) 126426048Sminshall goto abort; 126526048Sminshall ptflag++; 126626048Sminshall (void) getreply(0); 126726048Sminshall pswitch(0); 126826048Sminshall (void) getreply(0); 126926048Sminshall (void) signal(SIGINT, oldintr); 127026048Sminshall pswitch(1); 127126048Sminshall ptflag = 0; 127226048Sminshall printf("local: %s remote: %s\n", local, remote); 127326048Sminshall return; 127426048Sminshall abort: 127526048Sminshall (void) signal(SIGINT, SIG_IGN); 127626048Sminshall ptflag = 0; 127726448Slepreau if (strcmp(cmd, "RETR") && !proxy) 127826048Sminshall pswitch(1); 127926448Slepreau else if (!strcmp(cmd, "RETR") && proxy) 128026048Sminshall pswitch(0); 128126048Sminshall if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */ 128226048Sminshall if (command("%s %s", cmd2, local) != PRELIM) { 128326048Sminshall pswitch(0); 128438133Srick if (cpend) 128538133Srick abort_remote((FILE *) NULL); 128626048Sminshall } 128726048Sminshall pswitch(1); 128826448Slepreau if (ptabflg) 128926048Sminshall code = -1; 129026048Sminshall (void) signal(SIGINT, oldintr); 129126048Sminshall return; 129226048Sminshall } 129338133Srick if (cpend) 129438133Srick abort_remote((FILE *) NULL); 129526048Sminshall pswitch(!proxy); 129626048Sminshall if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */ 129726048Sminshall if (command("%s %s", cmd2, local) != PRELIM) { 129826048Sminshall pswitch(0); 129938133Srick if (cpend) 130038133Srick abort_remote((FILE *) NULL); 130126048Sminshall pswitch(1); 130226448Slepreau if (ptabflg) 130326048Sminshall code = -1; 130426048Sminshall (void) signal(SIGINT, oldintr); 130526048Sminshall return; 130626048Sminshall } 130726048Sminshall } 130838133Srick if (cpend) 130938133Srick abort_remote((FILE *) NULL); 131026048Sminshall pswitch(!proxy); 131126048Sminshall if (cpend) { 131227687Sminshall FD_ZERO(&mask); 131326496Sminshall FD_SET(fileno(cin), &mask); 131438133Srick if ((nfnd = empty(&mask, 10)) <= 0) { 131527687Sminshall if (nfnd < 0) { 131627687Sminshall perror("abort"); 131727687Sminshall } 131826448Slepreau if (ptabflg) 131926048Sminshall code = -1; 132026048Sminshall lostpeer(); 132126048Sminshall } 132226048Sminshall (void) getreply(0); 132326048Sminshall (void) getreply(0); 132426048Sminshall } 132526448Slepreau if (proxy) 132626048Sminshall pswitch(0); 132726048Sminshall pswitch(1); 132826448Slepreau if (ptabflg) 132926048Sminshall code = -1; 133026048Sminshall (void) signal(SIGINT, oldintr); 133126048Sminshall } 133226048Sminshall 133326048Sminshall reset() 133426048Sminshall { 133526496Sminshall struct fd_set mask; 133626496Sminshall int nfnd = 1; 133726048Sminshall 133827687Sminshall FD_ZERO(&mask); 133930946Scsvsj while (nfnd > 0) { 134026496Sminshall FD_SET(fileno(cin), &mask); 134127687Sminshall if ((nfnd = empty(&mask,0)) < 0) { 134226048Sminshall perror("reset"); 134326048Sminshall code = -1; 134426048Sminshall lostpeer(); 134526048Sminshall } 134627687Sminshall else if (nfnd) { 134726048Sminshall (void) getreply(0); 134826496Sminshall } 134926048Sminshall } 135026048Sminshall } 135126048Sminshall 135226048Sminshall char * 135326048Sminshall gunique(local) 135426048Sminshall char *local; 135526048Sminshall { 135626048Sminshall static char new[MAXPATHLEN]; 135726048Sminshall char *cp = rindex(local, '/'); 135826048Sminshall int d, count=0; 135926048Sminshall char ext = '1'; 136026048Sminshall 136126448Slepreau if (cp) 136226048Sminshall *cp = '\0'; 136326048Sminshall d = access(cp ? local : ".", 2); 136426448Slepreau if (cp) 136526048Sminshall *cp = '/'; 136626048Sminshall if (d < 0) { 136738202Srick fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); 136826048Sminshall return((char *) 0); 136926048Sminshall } 137026048Sminshall (void) strcpy(new, local); 137126048Sminshall cp = new + strlen(new); 137226048Sminshall *cp++ = '.'; 137326048Sminshall while (!d) { 137426048Sminshall if (++count == 100) { 137526048Sminshall printf("runique: can't find unique file name.\n"); 137626048Sminshall return((char *) 0); 137726048Sminshall } 137826048Sminshall *cp++ = ext; 137926048Sminshall *cp = '\0'; 138026448Slepreau if (ext == '9') 138126048Sminshall ext = '0'; 138226448Slepreau else 138326048Sminshall ext++; 138426448Slepreau if ((d = access(new, 0)) < 0) 138526048Sminshall break; 138626448Slepreau if (ext != '0') 138726048Sminshall cp--; 138826448Slepreau else if (*(cp - 2) == '.') 138926048Sminshall *(cp - 1) = '1'; 139026048Sminshall else { 139126048Sminshall *(cp - 2) = *(cp - 2) + 1; 139226048Sminshall cp--; 139326048Sminshall } 139426048Sminshall } 139526048Sminshall return(new); 139626048Sminshall } 139738133Srick 139838133Srick abort_remote(din) 139938133Srick FILE *din; 140038133Srick { 140138133Srick char buf[BUFSIZ]; 140238133Srick int nfnd; 140338133Srick struct fd_set mask; 140438133Srick 140538133Srick /* 140638133Srick * send IAC in urgent mode instead of DM because 4.3BSD places oob mark 140738133Srick * after urgent byte rather than before as is protocol now 140838133Srick */ 140938133Srick sprintf(buf, "%c%c%c", IAC, IP, IAC); 141038133Srick if (send(fileno(cout), buf, 3, MSG_OOB) != 3) 141138133Srick perror("abort"); 141238133Srick fprintf(cout,"%cABOR\r\n", DM); 141338133Srick (void) fflush(cout); 141438133Srick FD_ZERO(&mask); 141538133Srick FD_SET(fileno(cin), &mask); 141638133Srick if (din) { 141738133Srick FD_SET(fileno(din), &mask); 141838133Srick } 141938133Srick if ((nfnd = empty(&mask, 10)) <= 0) { 142038133Srick if (nfnd < 0) { 142138133Srick perror("abort"); 142238133Srick } 142338133Srick if (ptabflg) 142438133Srick code = -1; 142538133Srick lostpeer(); 142638133Srick } 142738133Srick if (din && FD_ISSET(fileno(din), &mask)) { 142838133Srick while (read(fileno(din), buf, BUFSIZ) > 0) 142938133Srick /* LOOP */; 143038133Srick } 143138133Srick if (getreply(0) == ERROR && code == 552) { 143238133Srick /* 552 needed for nic style abort */ 143338133Srick (void) getreply(0); 143438133Srick } 143538133Srick (void) getreply(0); 143638133Srick } 1437