/* $OpenBSD: cmds.c,v 1.6 1996/11/09 19:53:59 kstailey Exp $ */ /* $NetBSD: cmds.c,v 1.8 1995/09/08 01:06:05 tls Exp $ */ /* * 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 #if 0 static char sccsid[] = "@(#)cmds.c 8.6 (Berkeley) 10/9/94"; #else static char rcsid[] = "$OpenBSD: cmds.c,v 1.6 1996/11/09 19:53:59 kstailey Exp $"; #endif #endif /* not lint */ /* * FTP User Program -- Command Routines. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ftp_var.h" #include "pathnames.h" jmp_buf jabort; char *mname; char *home = "/"; /* * `Another' gets another argument, and stores the new argc and argv. * It reverts to the top level (via main.c's intr()) on EOF/error. * * Returns false if no new arguments have been added. */ int another(pargc, pargv, prompt) int *pargc; char ***pargv; char *prompt; { int len = strlen(line), ret; if (len >= sizeof(line) - 3) { printf("sorry, arguments too long\n"); intr(); } printf("(%s) ", prompt); line[len++] = ' '; if (fgets(&line[len], sizeof(line) - len, stdin) == NULL) intr(); len += strlen(&line[len]); if (len > 0 && line[len - 1] == '\n') line[len - 1] = '\0'; makeargv(); ret = margc > *pargc; *pargc = margc; *pargv = margv; return (ret); } /* * Connect to peer server and * auto-login, if possible. */ void setpeer(argc, argv) int argc; char *argv[]; { char *host; short port; if (connected) { printf("Already connected to %s, use close first.\n", hostname); code = -1; return; } if (argc < 2) (void) another(&argc, &argv, "to"); if (argc < 2 || argc > 3) { printf("usage: %s host-name [port]\n", argv[0]); code = -1; return; } port = sp->s_port; if (argc > 2) { port = atoi(argv[2]); if (port <= 0) { printf("%s: bad port number-- %s\n", argv[1], argv[2]); printf ("usage: %s host-name [port]\n", argv[0]); code = -1; return; } port = htons(port); } host = hookup(argv[1], port); if (host) { int overbose; connected = 1; /* * Set up defaults for FTP. */ (void) strcpy(typename, "ascii"), type = TYPE_A; curtype = TYPE_A; (void) strcpy(formname, "non-print"), form = FORM_N; (void) strcpy(modename, "stream"), mode = MODE_S; (void) strcpy(structname, "file"), stru = STRU_F; (void) strcpy(bytename, "8"), bytesize = 8; if (autologin) (void) login(argv[1]); #if defined(unix) && NBBY == 8 /* * this ifdef is to keep someone form "porting" this to an incompatible * system and not checking this out. This way they have to think about it. */ overbose = verbose; if (debug == 0) verbose = -1; if (command("SYST") == COMPLETE && overbose) { char *cp, c; cp = strchr(reply_string+4, ' '); if (cp == NULL) cp = strchr(reply_string+4, '\r'); if (cp) { if (cp[-1] == '.') cp--; c = *cp; *cp = '\0'; } printf("Remote system type is %s.\n", reply_string+4); if (cp) *cp = c; } if (!strncmp(reply_string, "215 UNIX Type: L8", 17)) { if (proxy) unix_proxy = 1; else unix_server = 1; /* * Set type to 0 (not specified by user), * meaning binary by default, but don't bother * telling server. We can use binary * for text files unless changed by the user. */ type = 0; (void) strcpy(typename, "binary"); if (overbose) printf("Using %s mode to transfer files.\n", typename); } else { if (proxy) unix_proxy = 0; else unix_server = 0; if (overbose && !strncmp(reply_string, "215 TOPS20", 10)) printf( "Remember to set tenex mode when transfering binary files from this machine.\n"); } verbose = overbose; #endif /* unix */ } } struct types { char *t_name; char *t_mode; int t_type; char *t_arg; } types[] = { { "ascii", "A", TYPE_A, 0 }, { "binary", "I", TYPE_I, 0 }, { "image", "I", TYPE_I, 0 }, { "ebcdic", "E", TYPE_E, 0 }, { "tenex", "L", TYPE_L, bytename }, { NULL } }; /* * Set transfer type. */ void settype(argc, argv) int argc; char *argv[]; { struct types *p; int comret; if (argc > 2) { char *sep; printf("usage: %s [", argv[0]); sep = " "; for (p = types; p->t_name; p++) { printf("%s%s", sep, p->t_name); sep = " | "; } printf(" ]\n"); code = -1; return; } if (argc < 2) { printf("Using %s mode to transfer files.\n", typename); code = 0; return; } for (p = types; p->t_name; p++) if (strcmp(argv[1], p->t_name) == 0) break; if (p->t_name == 0) { printf("%s: unknown mode\n", argv[1]); code = -1; return; } if ((p->t_arg != NULL) && (*(p->t_arg) != '\0')) comret = command ("TYPE %s %s", p->t_mode, p->t_arg); else comret = command("TYPE %s", p->t_mode); if (comret == COMPLETE) { (void) strcpy(typename, p->t_name); curtype = type = p->t_type; } } /* * Internal form of settype; changes current type in use with server * without changing our notion of the type for data transfers. * Used to change to and from ascii for listings. */ void changetype(newtype, show) int newtype, show; { struct types *p; int comret, oldverbose = verbose; if (newtype == 0) newtype = TYPE_I; if (newtype == curtype) return; if (debug == 0 && show == 0) verbose = 0; for (p = types; p->t_name; p++) if (newtype == p->t_type) break; if (p->t_name == 0) { printf("ftp: internal error: unknown type %d\n", newtype); return; } if (newtype == TYPE_L && bytename[0] != '\0') comret = command("TYPE %s %s", p->t_mode, bytename); else comret = command("TYPE %s", p->t_mode); if (comret == COMPLETE) curtype = newtype; verbose = oldverbose; } char *stype[] = { "type", "", 0 }; /* * Set binary transfer type. */ /*VARARGS*/ void setbinary(argc, argv) int argc; char **argv; { stype[1] = "binary"; settype(2, stype); } /* * Set ascii transfer type. */ /*VARARGS*/ void setascii(argc, argv) int argc; char *argv[]; { stype[1] = "ascii"; settype(2, stype); } /* * Set tenex transfer type. */ /*VARARGS*/ void settenex(argc, argv) int argc; char *argv[]; { stype[1] = "tenex"; settype(2, stype); } /* * Set file transfer mode. */ /*ARGSUSED*/ void setftmode(argc, argv) int argc; char *argv[]; { printf("We only support %s mode, sorry.\n", modename); code = -1; } /* * Set file transfer format. */ /*ARGSUSED*/ void setform(argc, argv) int argc; char *argv[]; { printf("We only support %s format, sorry.\n", formname); code = -1; } /* * Set file transfer structure. */ /*ARGSUSED*/ void setstruct(argc, argv) int argc; char *argv[]; { printf("We only support %s structure, sorry.\n", structname); code = -1; } /* * Send a single file. */ void put(argc, argv) int argc; char *argv[]; { char *cmd; int loc = 0; char *oldargv1, *oldargv2; if (argc == 2) { argc++; argv[2] = argv[1]; loc++; } if (argc < 2 && !another(&argc, &argv, "local-file")) goto usage; if (argc < 3 && !another(&argc, &argv, "remote-file")) { usage: printf("usage: %s local-file remote-file\n", argv[0]); code = -1; return; } oldargv1 = argv[1]; oldargv2 = argv[2]; if (!globulize(&argv[1])) { code = -1; return; } /* * If "globulize" modifies argv[1], and argv[2] is a copy of * the old argv[1], make it a copy of the new argv[1]. */ if (argv[1] != oldargv1 && argv[2] == oldargv1) { argv[2] = argv[1]; } cmd = (argv[0][0] == 'a') ? "APPE" : ((sunique) ? "STOU" : "STOR"); if (loc && ntflag) { argv[2] = dotrans(argv[2]); } if (loc && mapflag) { argv[2] = domap(argv[2]); } sendrequest(cmd, argv[1], argv[2], argv[1] != oldargv1 || argv[2] != oldargv2); } /* * Send multiple files. */ void mput(argc, argv) int argc; char **argv; { int i; sig_t oldintr; int ointer; char *tp; if (argc < 2 && !another(&argc, &argv, "local-files")) { printf("usage: %s local-files\n", argv[0]); code = -1; return; } mname = argv[0]; mflag = 1; oldintr = signal(SIGINT, mabort); (void) setjmp(jabort); if (proxy) { char *cp, *tp2, tmpbuf[MAXPATHLEN]; while ((cp = remglob(argv,0)) != NULL) { if (*cp == 0) { mflag = 0; continue; } if (mflag && confirm(argv[0], cp)) { tp = cp; if (mcase) { while (*tp && !islower(*tp)) { tp++; } if (!*tp) { tp = cp; tp2 = tmpbuf; while ((*tp2 = *tp) != NULL) { if (isupper(*tp2)) { *tp2 = 'a' + *tp2 - 'A'; } tp++; tp2++; } } tp = tmpbuf; } if (ntflag) { tp = dotrans(tp); } if (mapflag) { tp = domap(tp); } sendrequest((sunique) ? "STOU" : "STOR", cp, tp, cp != tp || !interactive); if (!mflag && fromatty) { ointer = interactive; interactive = 1; if (confirm("Continue with","mput")) { mflag++; } interactive = ointer; } } } (void) signal(SIGINT, oldintr); mflag = 0; return; } for (i = 1; i < argc; i++) { char **cpp, **gargs; glob_t gl; int flags; if (!doglob) { if (mflag && confirm(argv[0], argv[i])) { tp = (ntflag) ? dotrans(argv[i]) : argv[i]; tp = (mapflag) ? domap(tp) : tp; sendrequest((sunique) ? "STOU" : "STOR", argv[i], tp, tp != argv[i] || !interactive); if (!mflag && fromatty) { ointer = interactive; interactive = 1; if (confirm("Continue with","mput")) { mflag++; } interactive = ointer; } } continue; } memset(&gl, 0, sizeof(gl)); flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE; if (glob(argv[i], flags, NULL, &gl) || gl.gl_pathc == 0) { warnx("%s: not found", argv[i]); globfree(&gl); continue; } for (cpp = gl.gl_pathv; cpp && *cpp != NULL; cpp++) { if (mflag && confirm(argv[0], *cpp)) { tp = (ntflag) ? dotrans(*cpp) : *cpp; tp = (mapflag) ? domap(tp) : tp; sendrequest((sunique) ? "STOU" : "STOR", *cpp, tp, *cpp != tp || !interactive); if (!mflag && fromatty) { ointer = interactive; interactive = 1; if (confirm("Continue with","mput")) { mflag++; } interactive = ointer; } } } globfree(&gl); } (void) signal(SIGINT, oldintr); mflag = 0; } void reget(argc, argv) int argc; char *argv[]; { (void) getit(argc, argv, 1, "r+w"); } void get(argc, argv) int argc; char *argv[]; { (void) getit(argc, argv, 0, restart_point ? "r+w" : "w" ); } /* * Receive one file. */ int getit(argc, argv, restartit, mode) int argc; char *argv[]; char *mode; int restartit; { int loc = 0; char *oldargv1, *oldargv2; if (argc == 2) { argc++; argv[2] = argv[1]; loc++; } if (argc < 2 && !another(&argc, &argv, "remote-file")) goto usage; if (argc < 3 && !another(&argc, &argv, "local-file")) { usage: printf("usage: %s remote-file [ local-file ]\n", argv[0]); code = -1; return (0); } oldargv1 = argv[1]; oldargv2 = argv[2]; if (!globulize(&argv[2])) { code = -1; return (0); } if (loc && mcase) { char *tp = argv[1], *tp2, tmpbuf[MAXPATHLEN]; while (*tp && !islower(*tp)) { tp++; } if (!*tp) { tp = argv[2]; tp2 = tmpbuf; while ((*tp2 = *tp) != NULL) { if (isupper(*tp2)) { *tp2 = 'a' + *tp2 - 'A'; } tp++; tp2++; } argv[2] = tmpbuf; } } if (loc && ntflag) argv[2] = dotrans(argv[2]); if (loc && mapflag) argv[2] = domap(argv[2]); if (restartit) { struct stat stbuf; int ret; ret = stat(argv[2], &stbuf); if (restartit == 1) { if (ret < 0) { warn("local: %s", argv[2]); return (0); } restart_point = stbuf.st_size; } else { if (ret == 0) { int overbose; overbose = verbose; if (debug == 0) verbose = -1; if (command("MDTM %s", argv[1]) == COMPLETE) { int yy, mo, day, hour, min, sec; struct tm *tm; verbose = overbose; sscanf(reply_string, "%*s %04d%02d%02d%02d%02d%02d", &yy, &mo, &day, &hour, &min, &sec); tm = gmtime(&stbuf.st_mtime); tm->tm_mon++; if (tm->tm_year > yy%100) return (1); if ((tm->tm_year == yy%100 && tm->tm_mon > mo) || (tm->tm_mon == mo && tm->tm_mday > day) || (tm->tm_mday == day && tm->tm_hour > hour) || (tm->tm_hour == hour && tm->tm_min > min) || (tm->tm_min == min && tm->tm_sec > sec)) return (1); } else { printf("%s\n", reply_string); verbose = overbose; return (0); } } } } recvrequest("RETR", argv[2], argv[1], mode, argv[1] != oldargv1 || argv[2] != oldargv2); restart_point = 0; return (0); } /* ARGSUSED */ void mabort(signo) int signo; { int ointer; printf("\n"); (void) fflush(stdout); if (mflag && fromatty) { ointer = interactive; interactive = 1; if (confirm("Continue with", mname)) { interactive = ointer; longjmp(jabort,0); } interactive = ointer; } mflag = 0; longjmp(jabort,0); } /* * Get multiple files. */ void mget(argc, argv) int argc; char **argv; { sig_t oldintr; int ch, ointer; char *cp, *tp, *tp2, tmpbuf[MAXPATHLEN]; if (argc < 2 && !another(&argc, &argv, "remote-files")) { printf("usage: %s remote-files\n", argv[0]); code = -1; return; } mname = argv[0]; mflag = 1; oldintr = signal(SIGINT, mabort); (void) setjmp(jabort); while ((cp = remglob(argv,proxy)) != NULL) { if (*cp == '\0') { mflag = 0; continue; } if (mflag && confirm(argv[0], cp)) { tp = cp; if (mcase) { for (tp2 = tmpbuf; ch = *tp++;) *tp2++ = isupper(ch) ? tolower(ch) : ch; *tp2 = '\0'; tp = tmpbuf; } if (ntflag) { tp = dotrans(tp); } if (mapflag) { tp = domap(tp); } recvrequest("RETR", tp, cp, "w", tp != cp || !interactive); if (!mflag && fromatty) { ointer = interactive; interactive = 1; if (confirm("Continue with","mget")) { mflag++; } interactive = ointer; } } } (void) signal(SIGINT,oldintr); mflag = 0; } char * remglob(argv,doswitch) char *argv[]; int doswitch; { char temp[16]; static char buf[MAXPATHLEN]; static FILE *ftemp = NULL; int fd; static char **args; int oldverbose, oldhash; char *cp, *mode; if (!mflag) { if (!doglob) { args = NULL; } else { if (ftemp) { (void) fclose(ftemp); ftemp = NULL; } } return (NULL); } if (!doglob) { if (args == NULL) args = argv; if ((cp = *++args) == NULL) args = NULL; return (cp); } if (ftemp == NULL) { (void) strcpy(temp, _PATH_TMPFILE); (void) mktemp(temp); /* create a zero-byte version of the file so that * people can't play symlink games. */ fd = open (temp, O_CREAT | O_EXCL | O_WRONLY, 600); if (fd < 0) { printf ("temporary file %s already exists\n",temp); close (fd); return NULL; } close (fd); oldverbose = verbose, verbose = 0; oldhash = hash, hash = 0; if (doswitch) { pswitch(!proxy); } for (mode = "w"; *++argv != NULL; mode = "a") recvrequest ("NLST", temp, *argv, mode, 0); if (doswitch) { pswitch(!proxy); } verbose = oldverbose; hash = oldhash; ftemp = fopen(temp, "r"); (void) unlink(temp); if (ftemp == NULL) { printf("can't find list of remote files, oops\n"); return (NULL); } } if (fgets(buf, sizeof (buf), ftemp) == NULL) { (void) fclose(ftemp), ftemp = NULL; return (NULL); } if ((cp = strchr(buf, '\n')) != NULL) *cp = '\0'; return (buf); } char * onoff(bool) int bool; { return (bool ? "on" : "off"); } /* * Show status. */ /*ARGSUSED*/ void status(argc, argv) int argc; char *argv[]; { int i; if (connected) printf("Connected to %s.\n", hostname); else printf("Not connected.\n"); if (!proxy) { pswitch(1); if (connected) { printf("Connected for proxy commands to %s.\n", hostname); } else { printf("No proxy connection.\n"); } pswitch(0); } printf("Mode: %s; Type: %s; Form: %s; Structure: %s\n", modename, typename, formname, structname); printf("Verbose: %s; Bell: %s; Prompting: %s; Globbing: %s\n", onoff(verbose), onoff(bell), onoff(interactive), onoff(doglob)); printf("Store unique: %s; Receive unique: %s\n", onoff(sunique), onoff(runique)); printf("Case: %s; CR stripping: %s\n",onoff(mcase),onoff(crflag)); if (ntflag) { printf("Ntrans: (in) %s (out) %s\n", ntin,ntout); } else { printf("Ntrans: off\n"); } if (mapflag) { printf("Nmap: (in) %s (out) %s\n", mapin, mapout); } else { printf("Nmap: off\n"); } printf("Hash mark printing: %s; Mark count: %d\n", onoff(hash), mark); printf("Use of PORT cmds: %s\n", onoff(sendport)); if (macnum > 0) { printf("Macros:\n"); for (i=0; i 1) { val = atoi(argv[1]); if (val < 0) { printf("%s: bad debugging value.\n", argv[1]); code = -1; return; } } else val = !debug; debug = val; if (debug) options |= SO_DEBUG; else options &= ~SO_DEBUG; printf("Debugging %s (debug=%d).\n", onoff(debug), debug); code = debug > 0; } /* * Set current working directory * on remote machine. */ void cd(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "remote-directory")) { printf("usage: %s remote-directory\n", argv[0]); code = -1; return; } if (command("CWD %s", argv[1]) == ERROR && code == 500) { if (verbose) printf("CWD command not recognized, trying XCWD\n"); (void) command("XCWD %s", argv[1]); } } /* * Set current working directory * on local machine. */ void lcd(argc, argv) int argc; char *argv[]; { char buf[MAXPATHLEN]; if (argc < 2) argc++, argv[1] = home; if (argc != 2) { printf("usage: %s local-directory\n", argv[0]); code = -1; return; } if (!globulize(&argv[1])) { code = -1; return; } if (chdir(argv[1]) < 0) { warn("local: %s", argv[1]); code = -1; return; } if (getwd(buf) != NULL) printf("Local directory now %s\n", buf); else warnx("getwd: %s", buf); code = 0; } /* * Delete a single file. */ void delete(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "remote-file")) { printf("usage: %s remote-file\n", argv[0]); code = -1; return; } (void) command("DELE %s", argv[1]); } /* * Delete multiple files. */ void mdelete(argc, argv) int argc; char **argv; { sig_t oldintr; int ointer; char *cp; if (argc < 2 && !another(&argc, &argv, "remote-files")) { printf("usage: %s remote-files\n", argv[0]); code = -1; return; } mname = argv[0]; mflag = 1; oldintr = signal(SIGINT, mabort); (void) setjmp(jabort); while ((cp = remglob(argv,0)) != NULL) { if (*cp == '\0') { mflag = 0; continue; } if (mflag && confirm(argv[0], cp)) { (void) command("DELE %s", cp); if (!mflag && fromatty) { ointer = interactive; interactive = 1; if (confirm("Continue with", "mdelete")) { mflag++; } interactive = ointer; } } } (void) signal(SIGINT, oldintr); mflag = 0; } /* * Rename a remote file. */ void renamefile(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "from-name")) goto usage; if (argc < 3 && !another(&argc, &argv, "to-name")) { usage: printf("%s from-name to-name\n", argv[0]); code = -1; return; } if (command("RNFR %s", argv[1]) == CONTINUE) (void) command("RNTO %s", argv[2]); } /* * Get a directory listing * of remote files. */ void ls(argc, argv) int argc; char *argv[]; { char *cmd; if (argc < 2) argc++, argv[1] = NULL; if (argc < 3) argc++, argv[2] = "-"; if (argc > 3) { printf("usage: %s remote-directory local-file\n", argv[0]); code = -1; return; } cmd = argv[0][0] == 'n' ? "NLST" : "LIST"; if (strcmp(argv[2], "-") && !globulize(&argv[2])) { code = -1; return; } if (strcmp(argv[2], "-") && *argv[2] != '|') if (!globulize(&argv[2]) || !confirm("output to local-file:", argv[2])) { code = -1; return; } recvrequest(cmd, argv[2], argv[1], "w", 0); /* flush results in case commands are coming from a pipe */ fflush(stdout); } /* * Get a directory listing * of multiple remote files. */ void mls(argc, argv) int argc; char **argv; { sig_t oldintr; int ointer, i; char *cmd, mode[1], *dest; if (argc < 2 && !another(&argc, &argv, "remote-files")) goto usage; if (argc < 3 && !another(&argc, &argv, "local-file")) { usage: printf("usage: %s remote-files local-file\n", argv[0]); code = -1; return; } dest = argv[argc - 1]; argv[argc - 1] = NULL; if (strcmp(dest, "-") && *dest != '|') if (!globulize(&dest) || !confirm("output to local-file:", dest)) { code = -1; return; } cmd = argv[0][1] == 'l' ? "NLST" : "LIST"; mname = argv[0]; mflag = 1; oldintr = signal(SIGINT, mabort); (void) setjmp(jabort); for (i = 1; mflag && i < argc-1; ++i) { *mode = (i == 1) ? 'w' : 'a'; recvrequest(cmd, dest, argv[i], mode, 0); if (!mflag && fromatty) { ointer = interactive; interactive = 1; if (confirm("Continue with", argv[0])) { mflag ++; } interactive = ointer; } } (void) signal(SIGINT, oldintr); mflag = 0; } /* * Do a shell escape */ /*ARGSUSED*/ void shell(argc, argv) int argc; char **argv; { pid_t pid; sig_t old1, old2; char shellnam[40], *shell, *namep; union wait status; old1 = signal (SIGINT, SIG_IGN); old2 = signal (SIGQUIT, SIG_IGN); if ((pid = fork()) == 0) { for (pid = 3; pid < 20; pid++) (void) close(pid); (void) signal(SIGINT, SIG_DFL); (void) signal(SIGQUIT, SIG_DFL); shell = getenv("SHELL"); if (shell == NULL) shell = _PATH_BSHELL; namep = strrchr(shell,'/'); if (namep == NULL) namep = shell; (void) strcpy(shellnam,"-"); (void) strcat(shellnam, ++namep); if (strcmp(namep, "sh") != 0) shellnam[0] = '+'; if (debug) { printf ("%s\n", shell); (void) fflush (stdout); } if (argc > 1) { execl(shell,shellnam,"-c",altarg,(char *)0); } else { execl(shell,shellnam,(char *)0); } warn("%s", shell); code = -1; exit(1); } if (pid > 0) while (wait((int *)&status) != pid) ; (void) signal(SIGINT, old1); (void) signal(SIGQUIT, old2); if (pid == -1) { warn("%s", "Try again later"); code = -1; } else { code = 0; } } /* * Send new user information (re-login) */ void user(argc, argv) int argc; char **argv; { char acct[80]; int n, aflag = 0; if (argc < 2) (void) another(&argc, &argv, "username"); if (argc < 2 || argc > 4) { printf("usage: %s username [password] [account]\n", argv[0]); code = -1; return; } n = command("USER %s", argv[1]); if (n == CONTINUE) { if (argc < 3 ) argv[2] = getpass("Password: "), argc++; n = command("PASS %s", argv[2]); } if (n == CONTINUE) { if (argc < 4) { printf("Account: "); (void) fflush(stdout); (void) fgets(acct, sizeof(acct) - 1, stdin); acct[strlen(acct) - 1] = '\0'; argv[3] = acct; argc++; } n = command("ACCT %s", argv[3]); aflag++; } if (n != COMPLETE) { fprintf(stdout, "Login failed.\n"); return; } if (!aflag && argc == 4) { (void) command("ACCT %s", argv[3]); } } /* * Print working directory. */ /*VARARGS*/ void pwd(argc, argv) int argc; char *argv[]; { int oldverbose = verbose; /* * If we aren't verbose, this doesn't do anything! */ verbose = 1; if (command("PWD") == ERROR && code == 500) { printf("PWD command not recognized, trying XPWD\n"); (void) command("XPWD"); } verbose = oldverbose; } /* * Make a directory. */ void makedir(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "directory-name")) { printf("usage: %s directory-name\n", argv[0]); code = -1; return; } if (command("MKD %s", argv[1]) == ERROR && code == 500) { if (verbose) printf("MKD command not recognized, trying XMKD\n"); (void) command("XMKD %s", argv[1]); } } /* * Remove a directory. */ void removedir(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "directory-name")) { printf("usage: %s directory-name\n", argv[0]); code = -1; return; } if (command("RMD %s", argv[1]) == ERROR && code == 500) { if (verbose) printf("RMD command not recognized, trying XRMD\n"); (void) command("XRMD %s", argv[1]); } } /* * Send a line, verbatim, to the remote machine. */ void quote(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "command line to send")) { printf("usage: %s line-to-send\n", argv[0]); code = -1; return; } quote1("", argc, argv); } /* * Send a SITE command to the remote machine. The line * is sent verbatim to the remote machine, except that the * word "SITE" is added at the front. */ void site(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "arguments to SITE command")) { printf("usage: %s line-to-send\n", argv[0]); code = -1; return; } quote1("SITE ", argc, argv); } /* * Turn argv[1..argc) into a space-separated string, then prepend initial text. * Send the result as a one-line command and get response. */ void quote1(initial, argc, argv) char *initial; int argc; char **argv; { int i, len; char buf[BUFSIZ]; /* must be >= sizeof(line) */ (void) strcpy(buf, initial); if (argc > 1) { len = strlen(buf); len += strlen(strcpy(&buf[len], argv[1])); for (i = 2; i < argc; i++) { buf[len++] = ' '; len += strlen(strcpy(&buf[len], argv[i])); } } if (command(buf) == PRELIM) { while (getreply(0) == PRELIM) continue; } } void do_chmod(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "mode")) goto usage; if (argc < 3 && !another(&argc, &argv, "file-name")) { usage: printf("usage: %s mode file-name\n", argv[0]); code = -1; return; } (void) command("SITE CHMOD %s %s", argv[1], argv[2]); } void do_umask(argc, argv) int argc; char *argv[]; { int oldverbose = verbose; verbose = 1; (void) command(argc == 1 ? "SITE UMASK" : "SITE UMASK %s", argv[1]); verbose = oldverbose; } void idle(argc, argv) int argc; char *argv[]; { int oldverbose = verbose; verbose = 1; (void) command(argc == 1 ? "SITE IDLE" : "SITE IDLE %s", argv[1]); verbose = oldverbose; } /* * Ask the other side for help. */ void rmthelp(argc, argv) int argc; char *argv[]; { int oldverbose = verbose; verbose = 1; (void) command(argc == 1 ? "HELP" : "HELP %s", argv[1]); verbose = oldverbose; } /* * Terminate session and exit. */ /*VARARGS*/ void quit(argc, argv) int argc; char *argv[]; { if (connected) disconnect(0, 0); pswitch(1); if (connected) { disconnect(0, 0); } exit(0); } /* * Terminate session, but don't exit. */ void disconnect(argc, argv) int argc; char *argv[]; { if (!connected) return; (void) command("QUIT"); if (cout) { (void) fclose(cout); } cout = NULL; connected = 0; data = -1; if (!proxy) { macnum = 0; } } int confirm(cmd, file) char *cmd, *file; { char line[BUFSIZ]; if (!interactive) return (1); printf("%s %s? ", cmd, file); (void) fflush(stdout); if (fgets(line, sizeof line, stdin) == NULL) return (0); return (*line != 'n' && *line != 'N'); } void fatal(msg) char *msg; { errx(1, "%s", msg); } /* * Glob a local file name specification with * the expectation of a single return value. * Can't control multiple values being expanded * from the expression, we return only the first. */ int globulize(cpp) char **cpp; { glob_t gl; int flags; if (!doglob) return (1); flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE; memset(&gl, 0, sizeof(gl)); if (glob(*cpp, flags, NULL, &gl) || gl.gl_pathc == 0) { warnx("%s: not found", *cpp); globfree(&gl); return (0); } *cpp = strdup(gl.gl_pathv[0]); /* XXX - wasted memory */ globfree(&gl); return (1); } void account(argc,argv) int argc; char **argv; { char acct[50], *ap; if (argc > 1) { ++argv; --argc; (void) strncpy(acct,*argv,49); acct[49] = '\0'; while (argc > 1) { --argc; ++argv; (void) strncat(acct,*argv, 49-strlen(acct)); } ap = acct; } else { ap = getpass("Account:"); } (void) command("ACCT %s", ap); } jmp_buf abortprox; void proxabort() { if (!proxy) { pswitch(1); } if (connected) { proxflag = 1; } else { proxflag = 0; } pswitch(0); longjmp(abortprox,1); } void doproxy(argc, argv) int argc; char *argv[]; { struct cmd *c; sig_t oldintr; if (argc < 2 && !another(&argc, &argv, "command")) { printf("usage: %s command\n", argv[0]); code = -1; return; } c = getcmd(argv[1]); if (c == (struct cmd *) -1) { printf("?Ambiguous command\n"); (void) fflush(stdout); code = -1; return; } if (c == 0) { printf("?Invalid command\n"); (void) fflush(stdout); code = -1; return; } if (!c->c_proxy) { printf("?Invalid proxy command\n"); (void) fflush(stdout); code = -1; return; } if (setjmp(abortprox)) { code = -1; return; } oldintr = signal(SIGINT, proxabort); pswitch(1); if (c->c_conn && !connected) { printf("Not connected\n"); (void) fflush(stdout); pswitch(0); (void) signal(SIGINT, oldintr); code = -1; return; } (*c->c_handler)(argc-1, argv+1); if (connected) { proxflag = 1; } else { proxflag = 0; } pswitch(0); (void) signal(SIGINT, oldintr); } void setcase(argc, argv) int argc; char *argv[]; { mcase = !mcase; printf("Case mapping %s.\n", onoff(mcase)); code = mcase; } void setcr(argc, argv) int argc; char *argv[]; { crflag = !crflag; printf("Carriage Return stripping %s.\n", onoff(crflag)); code = crflag; } void setntrans(argc,argv) int argc; char *argv[]; { if (argc == 1) { ntflag = 0; printf("Ntrans off.\n"); code = ntflag; return; } ntflag++; code = ntflag; (void) strncpy(ntin, argv[1], 16); ntin[16] = '\0'; if (argc == 2) { ntout[0] = '\0'; return; } (void) strncpy(ntout, argv[2], 16); ntout[16] = '\0'; } char * dotrans(name) char *name; { static char new[MAXPATHLEN]; char *cp1, *cp2 = new; int i, ostop, found; for (ostop = 0; *(ntout + ostop) && ostop < 16; ostop++) continue; for (cp1 = name; *cp1; cp1++) { found = 0; for (i = 0; *(ntin + i) && i < 16; i++) { if (*cp1 == *(ntin + i)) { found++; if (i < ostop) { *cp2++ = *(ntout + i); } break; } } if (!found) { *cp2++ = *cp1; } } *cp2 = '\0'; return (new); } void setnmap(argc, argv) int argc; char *argv[]; { char *cp; if (argc == 1) { mapflag = 0; printf("Nmap off.\n"); code = mapflag; return; } if (argc < 3 && !another(&argc, &argv, "mapout")) { printf("Usage: %s [mapin mapout]\n",argv[0]); code = -1; return; } mapflag = 1; code = 1; cp = strchr(altarg, ' '); if (proxy) { while(*++cp == ' ') continue; altarg = cp; cp = strchr(altarg, ' '); } *cp = '\0'; (void) strncpy(mapin, altarg, MAXPATHLEN - 1); while (*++cp == ' ') continue; (void) strncpy(mapout, cp, MAXPATHLEN - 1); } char * domap(name) char *name; { static char new[MAXPATHLEN]; char *cp1 = name, *cp2 = mapin; char *tp[9], *te[9]; int i, toks[9], toknum = 0, match = 1; for (i=0; i < 9; ++i) { toks[i] = 0; } while (match && *cp1 && *cp2) { switch (*cp2) { case '\\': if (*++cp2 != *cp1) { match = 0; } break; case '$': if (*(cp2+1) >= '1' && (*cp2+1) <= '9') { if (*cp1 != *(++cp2+1)) { toks[toknum = *cp2 - '1']++; tp[toknum] = cp1; while (*++cp1 && *(cp2+1) != *cp1); te[toknum] = cp1; } cp2++; break; } /* FALLTHROUGH */ default: if (*cp2 != *cp1) { match = 0; } break; } if (match && *cp1) { cp1++; } if (match && *cp2) { cp2++; } } if (!match && *cp1) /* last token mismatch */ { toks[toknum] = 0; } cp1 = new; *cp1 = '\0'; cp2 = mapout; while (*cp2) { match = 0; switch (*cp2) { case '\\': if (*(cp2 + 1)) { *cp1++ = *++cp2; } break; case '[': LOOP: if (*++cp2 == '$' && isdigit(*(cp2+1))) { if (*++cp2 == '0') { char *cp3 = name; while (*cp3) { *cp1++ = *cp3++; } match = 1; } else if (toks[toknum = *cp2 - '1']) { char *cp3 = tp[toknum]; while (cp3 != te[toknum]) { *cp1++ = *cp3++; } match = 1; } } else { while (*cp2 && *cp2 != ',' && *cp2 != ']') { if (*cp2 == '\\') { cp2++; } else if (*cp2 == '$' && isdigit(*(cp2+1))) { if (*++cp2 == '0') { char *cp3 = name; while (*cp3) { *cp1++ = *cp3++; } } else if (toks[toknum = *cp2 - '1']) { char *cp3=tp[toknum]; while (cp3 != te[toknum]) { *cp1++ = *cp3++; } } } else if (*cp2) { *cp1++ = *cp2++; } } if (!*cp2) { printf("nmap: unbalanced brackets\n"); return (name); } match = 1; cp2--; } if (match) { while (*++cp2 && *cp2 != ']') { if (*cp2 == '\\' && *(cp2 + 1)) { cp2++; } } if (!*cp2) { printf("nmap: unbalanced brackets\n"); return (name); } break; } switch (*++cp2) { case ',': goto LOOP; case ']': break; default: cp2--; goto LOOP; } break; case '$': if (isdigit(*(cp2 + 1))) { if (*++cp2 == '0') { char *cp3 = name; while (*cp3) { *cp1++ = *cp3++; } } else if (toks[toknum = *cp2 - '1']) { char *cp3 = tp[toknum]; while (cp3 != te[toknum]) { *cp1++ = *cp3++; } } break; } /* intentional drop through */ default: *cp1++ = *cp2; break; } cp2++; } *cp1 = '\0'; if (!*new) { return (name); } return (new); } void setpassive(argc, argv) int argc; char *argv[]; { passivemode = !passivemode; printf("Passive mode %s.\n", onoff(passivemode)); code = passivemode; } void setsunique(argc, argv) int argc; char *argv[]; { sunique = !sunique; printf("Store unique %s.\n", onoff(sunique)); code = sunique; } void setrunique(argc, argv) int argc; char *argv[]; { runique = !runique; printf("Receive unique %s.\n", onoff(runique)); code = runique; } /* change directory to perent directory */ void cdup(argc, argv) int argc; char *argv[]; { if (command("CDUP") == ERROR && code == 500) { if (verbose) printf("CDUP command not recognized, trying XCUP\n"); (void) command("XCUP"); } } /* restart transfer at specific point */ void restart(argc, argv) int argc; char *argv[]; { if (argc != 2) printf("restart: offset not specified\n"); else { restart_point = atol(argv[1]); printf("restarting at %qd. %s\n", restart_point, "execute get, put or append to initiate transfer"); } } /* show remote system type */ void syst(argc, argv) int argc; char *argv[]; { (void) command("SYST"); } void macdef(argc, argv) int argc; char *argv[]; { char *tmp; int c; if (macnum == 16) { printf("Limit of 16 macros have already been defined\n"); code = -1; return; } if (argc < 2 && !another(&argc, &argv, "macro name")) { printf("Usage: %s macro_name\n",argv[0]); code = -1; return; } if (interactive) { printf("Enter macro line by line, terminating it with a null line\n"); } (void) strncpy(macros[macnum].mac_name, argv[1], 8); if (macnum == 0) { macros[macnum].mac_start = macbuf; } else { macros[macnum].mac_start = macros[macnum - 1].mac_end + 1; } tmp = macros[macnum].mac_start; while (tmp != macbuf+4096) { if ((c = getchar()) == EOF) { printf("macdef:end of file encountered\n"); code = -1; return; } if ((*tmp = c) == '\n') { if (tmp == macros[macnum].mac_start) { macros[macnum++].mac_end = tmp; code = 0; return; } if (*(tmp-1) == '\0') { macros[macnum++].mac_end = tmp - 1; code = 0; return; } *tmp = '\0'; } tmp++; } while (1) { while ((c = getchar()) != '\n' && c != EOF) /* LOOP */; if (c == EOF || getchar() == '\n') { printf("Macro not defined - 4k buffer exceeded\n"); code = -1; return; } } } /* * get size of file on remote machine */ void sizecmd(argc, argv) int argc; char *argv[]; { if (argc < 2 && !another(&argc, &argv, "filename")) { printf("usage: %s filename\n", argv[0]); code = -1; return; } (void) command("SIZE %s", argv[1]); } /* * get last modification time of file on remote machine */ void modtime(argc, argv) int argc; char *argv[]; { int overbose; if (argc < 2 && !another(&argc, &argv, "filename")) { printf("usage: %s filename\n", argv[0]); code = -1; return; } overbose = verbose; if (debug == 0) verbose = -1; if (command("MDTM %s", argv[1]) == COMPLETE) { int yy, mo, day, hour, min, sec; sscanf(reply_string, "%*s %04d%02d%02d%02d%02d%02d", &yy, &mo, &day, &hour, &min, &sec); /* might want to print this in local time */ printf("%s\t%02d/%02d/%04d %02d:%02d:%02d GMT\n", argv[1], mo, day, yy, hour, min, sec); } else printf("%s\n", reply_string); verbose = overbose; } /* * show status on reomte machine */ void rmtstatus(argc, argv) int argc; char *argv[]; { (void) command(argc > 1 ? "STAT %s" : "STAT" , argv[1]); } /* * get file if modtime is more recent than current file */ void newer(argc, argv) int argc; char *argv[]; { if (getit(argc, argv, -1, "w")) printf("Local file \"%s\" is newer than remote file \"%s\"\n", argv[2], argv[1]); }