/* $OpenBSD: small.c,v 1.1 2009/05/05 19:35:30 martynas Exp $ */ /* $NetBSD: cmds.c,v 1.27 1997/08/18 10:20:15 lukem Exp $ */ /* * Copyright (C) 1997 and 1998 WIDE Project. * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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. */ /* * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * FTP User Program -- Command Routines. */ #include <sys/types.h> #include <sys/socket.h> #include <sys/stat.h> #include <sys/wait.h> #include <arpa/ftp.h> #include <ctype.h> #include <err.h> #include <fnmatch.h> #include <glob.h> #include <netdb.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include "ftp_var.h" #include "pathnames.h" #include "small.h" jmp_buf jabort; char *mname; char *home = "/"; 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(int argc, char *argv[]) { struct types *p; int comret; if (argc > 2) { char *sep; fprintf(ttyout, "usage: %s [", argv[0]); sep = ""; for (p = types; p->t_name; p++) { fprintf(ttyout, "%s%s", sep, p->t_name); sep = " | "; } fputs("]\n", ttyout); code = -1; return; } if (argc < 2) { fprintf(ttyout, "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) { fprintf(ttyout, "%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)strlcpy(typename, p->t_name, sizeof typename); curtype = type = p->t_type; } } /* * Internal form of settype; changes current type in use with server * without changing our notion of the type for data transfers. * Used to change to and from ascii for listings. */ void changetype(int newtype, int show) { struct types *p; int comret, oldverbose = verbose; if (newtype == 0) newtype = TYPE_I; if (newtype == curtype) return; if ( #ifndef SMALL !debug && #endif /* !SMALL */ show == 0) verbose = 0; for (p = types; p->t_name; p++) if (newtype == p->t_type) break; if (p->t_name == 0) { warnx("internal error: unknown type %d.", 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. */ /*ARGSUSED*/ void setbinary(int argc, char *argv[]) { stype[1] = "binary"; settype(2, stype); } void get(int argc, char *argv[]) { (void)getit(argc, argv, 0, restart_point ? "a+w" : "w" ); } /* * Receive one file. */ int getit(int argc, char *argv[], int restartit, const char *mode) { int loc = 0; int rval = 0; char *oldargv1, *oldargv2, *globargv2; if (argc == 2) { argc++; argv[2] = argv[1]; loc++; } #ifndef SMALL if (argc < 2 && !another(&argc, &argv, "remote-file")) goto usage; if ((argc < 3 && !another(&argc, &argv, "local-file")) || argc > 3) { usage: fprintf(ttyout, "usage: %s remote-file [local-file]\n", argv[0]); code = -1; return (0); } #endif /* !SMALL */ oldargv1 = argv[1]; oldargv2 = argv[2]; if (!globulize(&argv[2])) { code = -1; return (0); } globargv2 = argv[2]; 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) != '\0') { if (isupper(*tp2)) { *tp2 = tolower(*tp2); } tp++; tp2++; } argv[2] = tmpbuf; } } if (loc && ntflag) argv[2] = dotrans(argv[2]); if (loc && mapflag) argv[2] = domap(argv[2]); #ifndef SMALL if (restartit) { struct stat stbuf; int ret; ret = stat(argv[2], &stbuf); if (restartit == 1) { restart_point = (ret < 0) ? 0 : stbuf.st_size; } else { if (ret == 0) { time_t mtime; mtime = remotemodtime(argv[1], 0); if (mtime == -1) goto freegetit; if (stbuf.st_mtime >= mtime) { rval = 1; goto freegetit; } } } } #endif /* !SMALL */ recvrequest("RETR", argv[2], argv[1], mode, argv[1] != oldargv1 || argv[2] != oldargv2 || !interactive, loc); restart_point = 0; freegetit: if (oldargv2 != globargv2) /* free up after globulize() */ free(globargv2); return (rval); } /* XXX - Signal race. */ /* ARGSUSED */ void mabort(int signo) { alarmtimer(0); putc('\n', ttyout); (void)fflush(ttyout); #ifndef SMALL if (mflag && fromatty) if (confirm(mname, NULL)) longjmp(jabort, 1); #endif /* !SMALL */ mflag = 0; longjmp(jabort, 1); } /* * Get multiple files. */ void mget(int argc, char *argv[]) { extern int optind, optreset; sig_t oldintr; int ch, xargc = 2; char *cp, localcwd[MAXPATHLEN], *xargv[] = { argv[0], NULL, NULL }; static int restartit = 0; #ifndef SMALL extern char *optarg; const char *errstr; int i = 1; char type = 0, *dummyargv[] = { argv[0], ".", NULL }; FILE *ftemp = NULL; static int depth = 0, max_depth = 0; optind = optreset = 1; if (depth) depth++; while ((ch = getopt(argc, argv, "cd:nr")) != -1) { switch(ch) { case 'c': restartit = 1; break; case 'd': max_depth = strtonum(optarg, 0, INT_MAX, &errstr); if (errstr != NULL) { fprintf(ttyout, "bad depth value, %s: %s\n", errstr, optarg); code = -1; return; } break; case 'n': restartit = -1; break; case 'r': depth = 1; break; default: goto usage; } } if (argc - optind < 1 && !another(&argc, &argv, "remote-files")) { usage: fprintf(ttyout, "usage: %s [-cnr] [-d depth] remote-files\n", argv[0]); code = -1; return; } argv[optind - 1] = argv[0]; argc -= optind - 1; argv += optind - 1; #endif /* !SMALL */ mname = argv[0]; mflag = 1; if (getcwd(localcwd, sizeof(localcwd)) == NULL) err(1, "can't get cwd"); oldintr = signal(SIGINT, mabort); (void)setjmp(jabort); while ((cp = #ifdef SMALL remglob(argv, proxy, NULL)) != NULL ) { #else /* SMALL */ depth ? remglob2(dummyargv, proxy, NULL, &ftemp, &type) : remglob(argv, proxy, NULL)) != NULL || (mflag && depth && ++i < argc) ) { if (cp == NULL) continue; #endif /* SMALL */ if (*cp == '\0') { mflag = 0; continue; } if (!mflag) continue; #ifndef SMALL if (depth && fnmatch(argv[i], cp, FNM_PATHNAME) != 0) continue; #endif /* !SMALL */ if (!fileindir(cp, localcwd)) { fprintf(ttyout, "Skipping non-relative filename `%s'\n", cp); continue; } #ifndef SMALL if (type == 'd' && depth == max_depth) continue; if (!confirm(argv[0], cp)) continue; if (type == 'd') { mkdir(cp, 0755); if (chdir(cp) != 0) { warn("local: %s", cp); continue; } xargv[1] = cp; cd(xargc, xargv); if (dirchange != 1) goto out; xargv[1] = "*"; mget(xargc, xargv); xargv[1] = ".."; cd(xargc, xargv); if (dirchange != 1) { mflag = 0; goto out; } out: if (chdir("..") != 0) { warn("local: %s", cp); mflag = 0; } continue; } if (type == 's') /* Currently ignored. */ continue; #endif /* !SMALL */ xargv[1] = cp; (void)getit(xargc, xargv, restartit, (restartit == 1 || restart_point) ? "a+w" : "w"); #ifndef SMALL if (!mflag && fromatty) { if (confirm(argv[0], NULL)) mflag = 1; } #endif /* !SMALL */ } (void)signal(SIGINT, oldintr); #ifndef SMALL if (depth) depth--; if (depth == 0 || mflag == 0) depth = max_depth = mflag = restartit = 0; #else /* !SMALL */ mflag = 0; #endif /* !SMALL */ } /* * Set current working directory on remote machine. */ void cd(int argc, char *argv[]) { int r; #ifndef SMALL if ((argc < 2 && !another(&argc, &argv, "remote-directory")) || argc > 2) { fprintf(ttyout, "usage: %s remote-directory\n", argv[0]); code = -1; return; } #endif /* !SMALL */ r = command("CWD %s", argv[1]); if (r == ERROR && code == 500) { if (verbose) fputs("CWD command not recognized, trying XCWD.\n", ttyout); r = command("XCWD %s", argv[1]); } if (r == ERROR && code == 550) { dirchange = 0; return; } if (r == COMPLETE) dirchange = 1; } /* * Terminate session, but don't exit. */ /* ARGSUSED */ void disconnect(int argc, char *argv[]) { if (!connected) return; (void)command("QUIT"); if (cout) { (void)fclose(cout); } cout = NULL; connected = 0; data = -1; #ifndef SMALL if (!proxy) { macnum = 0; } #endif /* !SMALL */ } char * dotrans(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); } char * domap(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 == '$' && isdigit(*(cp2+1))) { if (*++cp2 == '0') { char *cp3 = name; while (*cp3) { *cp1++ = *cp3++; } } else if (toks[toknum = *cp2 - '1']) { char *cp3=tp[toknum]; while (cp3 != te[toknum]) { *cp1++ = *cp3++; } } } else if (*cp2) { *cp1++ = *cp2++; } } if (!*cp2) { fputs( "nmap: unbalanced brackets.\n", ttyout); return (name); } match = 1; cp2--; } if (match) { while (*++cp2 && *cp2 != ']') { if (*cp2 == '\\' && *(cp2 + 1)) { cp2++; } } if (!*cp2) { fputs( "nmap: unbalanced brackets.\n", ttyout); return (name); } break; } switch (*++cp2) { case ',': goto LOOP; case ']': break; default: cp2--; goto LOOP; } break; case '$': 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; } /* FALLTHROUGH */ default: *cp1++ = *cp2; break; } cp2++; } *cp1 = '\0'; if (!*new) { return (name); } return (new); }