| File: | src/usr.bin/ftp/ftp.c |
| Warning: | line 454, column 13 Although the value stored to 'c' is used in the enclosing expression, the value is never actually read from 'c' |
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| 1 | /* $OpenBSD: ftp.c,v 1.109 2023/03/08 04:43:11 guenther Exp $ */ |
| 2 | /* $NetBSD: ftp.c,v 1.27 1997/08/18 10:20:23 lukem Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 1997 and 1998 WIDE Project. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. Neither the name of the project nor the names of its contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 30 | * SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | /* |
| 34 | * Copyright (c) 1985, 1989, 1993, 1994 |
| 35 | * The Regents of the University of California. All rights reserved. |
| 36 | * |
| 37 | * Redistribution and use in source and binary forms, with or without |
| 38 | * modification, are permitted provided that the following conditions |
| 39 | * are met: |
| 40 | * 1. Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions and the following disclaimer. |
| 42 | * 2. Redistributions in binary form must reproduce the above copyright |
| 43 | * notice, this list of conditions and the following disclaimer in the |
| 44 | * documentation and/or other materials provided with the distribution. |
| 45 | * 3. Neither the name of the University nor the names of its contributors |
| 46 | * may be used to endorse or promote products derived from this software |
| 47 | * without specific prior written permission. |
| 48 | * |
| 49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 52 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 53 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 54 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 55 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 56 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 59 | * SUCH DAMAGE. |
| 60 | */ |
| 61 | |
| 62 | #include <sys/types.h> |
| 63 | #include <sys/stat.h> |
| 64 | #include <sys/socket.h> |
| 65 | |
| 66 | #include <netinet/in.h> |
| 67 | #include <netinet/ip.h> |
| 68 | #include <arpa/inet.h> |
| 69 | #include <arpa/ftp.h> |
| 70 | #include <arpa/telnet.h> |
| 71 | |
| 72 | #include <ctype.h> |
| 73 | #include <err.h> |
| 74 | #include <errno(*__errno()).h> |
| 75 | #include <fcntl.h> |
| 76 | #include <netdb.h> |
| 77 | #include <poll.h> |
| 78 | #include <stdarg.h> |
| 79 | #include <stdio.h> |
| 80 | #include <stdlib.h> |
| 81 | #include <string.h> |
| 82 | #include <unistd.h> |
| 83 | |
| 84 | #include "ftp_var.h" |
| 85 | |
| 86 | union sockaddr_union { |
| 87 | struct sockaddr sa; |
| 88 | struct sockaddr_in sin; |
| 89 | struct sockaddr_in6 sin6; |
| 90 | }; |
| 91 | |
| 92 | union sockaddr_union myctladdr, hisctladdr, data_addr; |
| 93 | |
| 94 | int data = -1; |
| 95 | int abrtflag = 0; |
| 96 | jmp_buf ptabort; |
| 97 | int ptabflg; |
| 98 | int ptflag = 0; |
| 99 | off_t restart_point = 0; |
| 100 | |
| 101 | |
| 102 | FILE *cin, *cout; |
| 103 | |
| 104 | char * |
| 105 | hookup(char *host, char *port) |
| 106 | { |
| 107 | int s, tos, error; |
| 108 | static char hostnamebuf[HOST_NAME_MAX255+1]; |
| 109 | struct addrinfo hints, *res, *res0; |
| 110 | #ifndef SMALL |
| 111 | struct addrinfo *ares; |
| 112 | #endif |
| 113 | char hbuf[NI_MAXHOST256]; |
| 114 | char *cause = "unknown"; |
| 115 | socklen_t namelen; |
| 116 | |
| 117 | epsv4bad = 0; |
| 118 | |
| 119 | memset((char *)&hisctladdr, 0, sizeof (hisctladdr)); |
| 120 | memset(&hints, 0, sizeof(hints)); |
| 121 | hints.ai_flags = AI_CANONNAME2; |
| 122 | hints.ai_family = family; |
| 123 | hints.ai_socktype = SOCK_STREAM1; |
| 124 | hints.ai_protocol = 0; |
| 125 | error = getaddrinfo(host, port, &hints, &res0); |
| 126 | if (error == EAI_SERVICE-8) { |
| 127 | /* |
| 128 | * If the services file is corrupt/missing, fall back |
| 129 | * on our hard-coded defines. |
| 130 | */ |
| 131 | char pbuf[NI_MAXSERV32]; |
| 132 | |
| 133 | pbuf[0] = '\0'; |
| 134 | if (strcmp(port, "ftp") == 0) |
| 135 | snprintf(pbuf, sizeof(pbuf), "%d", FTP_PORT21); |
| 136 | else if (strcmp(port, "ftpgate") == 0) |
| 137 | snprintf(pbuf, sizeof(pbuf), "%d", GATE_PORT21); |
| 138 | else if (strcmp(port, "http") == 0) |
| 139 | snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT80); |
| 140 | #ifndef SMALL |
| 141 | else if (strcmp(port, "https") == 0) |
| 142 | snprintf(pbuf, sizeof(pbuf), "%d", HTTPS_PORT443); |
| 143 | #endif /* !SMALL */ |
| 144 | if (pbuf[0]) |
| 145 | error = getaddrinfo(host, pbuf, &hints, &res0); |
| 146 | } |
| 147 | if (error) { |
| 148 | if (error == EAI_SERVICE-8) |
| 149 | warnx("%s: bad port number `%s'", host, port); |
| 150 | else |
| 151 | warnx("%s: %s", host, gai_strerror(error)); |
| 152 | code = -1; |
| 153 | return (0); |
| 154 | } |
| 155 | |
| 156 | if (res0->ai_canonname) |
| 157 | strlcpy(hostnamebuf, res0->ai_canonname, sizeof(hostnamebuf)); |
| 158 | else |
| 159 | strlcpy(hostnamebuf, host, sizeof(hostnamebuf)); |
| 160 | hostname = hostnamebuf; |
| 161 | |
| 162 | #ifndef SMALL |
| 163 | if (srcaddr) { |
| 164 | struct addrinfo ahints; |
| 165 | |
| 166 | memset(&ahints, 0, sizeof(ahints)); |
| 167 | ahints.ai_family = family; |
| 168 | ahints.ai_socktype = SOCK_STREAM1; |
| 169 | ahints.ai_flags |= AI_NUMERICHOST4; |
| 170 | ahints.ai_protocol = 0; |
| 171 | |
| 172 | error = getaddrinfo(srcaddr, NULL((void *)0), &ahints, &ares); |
| 173 | if (error) { |
| 174 | warnx("%s: %s", srcaddr, gai_strerror(error)); |
| 175 | code = -1; |
| 176 | return (0); |
| 177 | } |
| 178 | } |
| 179 | #endif /* !SMALL */ |
| 180 | |
| 181 | s = -1; |
| 182 | for (res = res0; res; res = res->ai_next) { |
| 183 | if (res0->ai_next) /* if we have multiple possibilities */ |
| 184 | { |
| 185 | if (getnameinfo(res->ai_addr, res->ai_addrlen, |
| 186 | hbuf, sizeof(hbuf), NULL((void *)0), 0, NI_NUMERICHOST1) != 0) |
| 187 | strlcpy(hbuf, "unknown", sizeof(hbuf)); |
| 188 | if (verbose) |
| 189 | fprintf(ttyout, "Trying %s...\n", hbuf); |
| 190 | } |
| 191 | s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); |
| 192 | if (s == -1) { |
| 193 | cause = "socket"; |
| 194 | continue; |
| 195 | } |
| 196 | #ifndef SMALL |
| 197 | if (srcaddr) { |
| 198 | if (ares->ai_family != res->ai_family) { |
| 199 | close(s); |
| 200 | s = -1; |
| 201 | errno(*__errno()) = EINVAL22; |
| 202 | cause = "bind"; |
| 203 | continue; |
| 204 | } |
| 205 | if (bind(s, ares->ai_addr, ares->ai_addrlen) == -1) { |
| 206 | cause = "bind"; |
| 207 | error = errno(*__errno()); |
| 208 | close(s); |
| 209 | errno(*__errno()) = error; |
| 210 | s = -1; |
| 211 | continue; |
| 212 | } |
| 213 | } |
| 214 | #endif /* !SMALL */ |
| 215 | error = timed_connect(s, res->ai_addr, res->ai_addrlen, |
| 216 | connect_timeout); |
| 217 | if (error != 0) { |
| 218 | /* this "if" clause is to prevent print warning twice */ |
| 219 | if (verbose && res->ai_next) { |
| 220 | if (getnameinfo(res->ai_addr, res->ai_addrlen, |
| 221 | hbuf, sizeof(hbuf), NULL((void *)0), 0, |
| 222 | NI_NUMERICHOST1) != 0) |
| 223 | strlcpy(hbuf, "(unknown)", |
| 224 | sizeof(hbuf)); |
| 225 | warn("connect to address %s", hbuf); |
| 226 | } |
| 227 | cause = "connect"; |
| 228 | error = errno(*__errno()); |
| 229 | close(s); |
| 230 | errno(*__errno()) = error; |
| 231 | s = -1; |
| 232 | continue; |
| 233 | } |
| 234 | |
| 235 | /* finally we got one */ |
| 236 | break; |
| 237 | } |
| 238 | if (s == -1) { |
| 239 | warn("%s", cause); |
| 240 | code = -1; |
| 241 | freeaddrinfo(res0); |
| 242 | return 0; |
| 243 | } |
| 244 | memcpy(&hisctladdr, res->ai_addr, res->ai_addrlen); |
| 245 | namelen = res->ai_addrlen; |
| 246 | freeaddrinfo(res0); |
| 247 | res0 = res = NULL((void *)0); |
| 248 | #ifndef SMALL |
| 249 | if (srcaddr) { |
| 250 | freeaddrinfo(ares); |
| 251 | ares = NULL((void *)0); |
| 252 | } |
| 253 | #endif /* !SMALL */ |
| 254 | if (getsockname(s, &myctladdr.sa, &namelen) == -1) { |
| 255 | warn("getsockname"); |
| 256 | code = -1; |
| 257 | goto bad; |
| 258 | } |
| 259 | if (hisctladdr.sa.sa_family == AF_INET2) { |
| 260 | tos = IPTOS_LOWDELAY0x10; |
| 261 | if (setsockopt(s, IPPROTO_IP0, IP_TOS3, (char *)&tos, sizeof(int)) == -1) |
| 262 | warn("setsockopt TOS (ignored)"); |
| 263 | } |
| 264 | cin = fdopen(s, "r"); |
| 265 | cout = fdopen(s, "w"); |
| 266 | if (cin == NULL((void *)0) || cout == NULL((void *)0)) { |
| 267 | warnx("fdopen failed."); |
| 268 | if (cin) |
| 269 | (void)fclose(cin); |
| 270 | if (cout) |
| 271 | (void)fclose(cout); |
| 272 | code = -1; |
| 273 | goto bad; |
| 274 | } |
| 275 | if (verbose) |
| 276 | fprintf(ttyout, "Connected to %s.\n", hostname); |
| 277 | if (getreply(0) > 2) { /* read startup message from server */ |
| 278 | if (cin) |
| 279 | (void)fclose(cin); |
| 280 | if (cout) |
| 281 | (void)fclose(cout); |
| 282 | code = -1; |
| 283 | goto bad; |
| 284 | } |
| 285 | { |
| 286 | int ret, on = 1; |
| 287 | |
| 288 | ret = setsockopt(s, SOL_SOCKET0xffff, SO_OOBINLINE0x0100, (char *)&on, sizeof(on)); |
| 289 | #ifndef SMALL |
| 290 | if (ret == -1 && debug) |
| 291 | warn("setsockopt"); |
| 292 | #endif /* !SMALL */ |
| 293 | } |
| 294 | |
| 295 | return (hostname); |
| 296 | bad: |
| 297 | (void)close(s); |
| 298 | return (NULL((void *)0)); |
| 299 | } |
| 300 | |
| 301 | void |
| 302 | cmdabort(int signo) |
| 303 | { |
| 304 | int save_errno = errno(*__errno()); |
| 305 | |
| 306 | alarmtimer(0); |
| 307 | (void) write(fileno(ttyout)(!__isthreaded ? ((ttyout)->_file) : (fileno)(ttyout)), "\n\r", 2); |
| 308 | abrtflag++; |
| 309 | |
| 310 | errno(*__errno()) = save_errno; |
| 311 | if (ptflag) |
| 312 | longjmp(ptabort, 1); |
| 313 | } |
| 314 | |
| 315 | int |
| 316 | command(const char *fmt, ...) |
| 317 | { |
| 318 | va_list ap; |
| 319 | int r; |
| 320 | sig_t oldintr; |
| 321 | |
| 322 | abrtflag = 0; |
| 323 | #ifndef SMALL |
| 324 | if (debug) { |
| 325 | fputs("---> ", ttyout); |
| 326 | va_start(ap, fmt)__builtin_va_start((ap), fmt); |
| 327 | if (strncmp("PASS ", fmt, 5) == 0) |
| 328 | fputs("PASS XXXX", ttyout); |
| 329 | else if (strncmp("ACCT ", fmt, 5) == 0) |
| 330 | fputs("ACCT XXXX", ttyout); |
| 331 | else |
| 332 | vfprintf(ttyout, fmt, ap); |
| 333 | va_end(ap)__builtin_va_end((ap)); |
| 334 | putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
| 335 | (void)fflush(ttyout); |
| 336 | } |
| 337 | #endif /* !SMALL */ |
| 338 | if (cout == NULL((void *)0)) { |
| 339 | warnx("No control connection for command."); |
| 340 | code = -1; |
| 341 | return (0); |
| 342 | } |
| 343 | oldintr = signal(SIGINT2, cmdabort); |
| 344 | va_start(ap, fmt)__builtin_va_start((ap), fmt); |
| 345 | vfprintf(cout, fmt, ap); |
| 346 | va_end(ap)__builtin_va_end((ap)); |
| 347 | fputs("\r\n", cout); |
| 348 | (void)fflush(cout); |
| 349 | cpend = 1; |
| 350 | r = getreply(!strcmp(fmt, "QUIT")); |
| 351 | if (abrtflag && oldintr != SIG_IGN(void (*)(int))1) |
| 352 | (*oldintr)(SIGINT2); |
| 353 | (void)signal(SIGINT2, oldintr); |
| 354 | return (r); |
| 355 | } |
| 356 | |
| 357 | int keep_alive_timeout = 60; /* 0 -> no timeout */ |
| 358 | |
| 359 | static int full_noops_sent = 0; |
| 360 | static time_t last_timestamp = 0; /* 0 -> no measurement yet */ |
| 361 | static char noop[] = "NOOP\r\n"; |
| 362 | #define NOOP_LENGTH(sizeof noop - 1) (sizeof noop - 1) |
| 363 | static int current_nop_pos = 0; /* 0 -> no noop started */ |
| 364 | |
| 365 | /* to achieve keep alive, we send noop one byte at a time */ |
| 366 | static void |
| 367 | send_noop_char(void) |
| 368 | { |
| 369 | #ifndef SMALL |
| 370 | if (debug) |
| 371 | fprintf(ttyout, "---> %c\n", noop[current_nop_pos]); |
| 372 | #endif /* !SMALL */ |
| 373 | fputc(noop[current_nop_pos++], cout); |
| 374 | (void)fflush(cout); |
| 375 | if (current_nop_pos >= NOOP_LENGTH(sizeof noop - 1)) { |
| 376 | full_noops_sent++; |
| 377 | current_nop_pos = 0; |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | static void |
| 382 | may_reset_noop_timeout(void) |
| 383 | { |
| 384 | if (keep_alive_timeout != 0) |
| 385 | last_timestamp = time(NULL((void *)0)); |
| 386 | } |
| 387 | |
| 388 | static void |
| 389 | may_receive_noop_ack(void) |
| 390 | { |
| 391 | int i; |
| 392 | |
| 393 | if (cout == NULL((void *)0)) { |
| 394 | /* Lost connection; so just pretend we're fine. */ |
| 395 | current_nop_pos = full_noops_sent = 0; |
| 396 | return; |
| 397 | } |
| 398 | |
| 399 | /* finish sending last incomplete noop */ |
| 400 | if (current_nop_pos != 0) { |
| 401 | fputs(&(noop[current_nop_pos]), cout); |
| 402 | #ifndef SMALL |
| 403 | if (debug) |
| 404 | fprintf(ttyout, "---> %s\n", &(noop[current_nop_pos])); |
| 405 | #endif /* !SMALL */ |
| 406 | (void)fflush(cout); |
| 407 | current_nop_pos = 0; |
| 408 | full_noops_sent++; |
| 409 | } |
| 410 | /* and get the replies */ |
| 411 | for (i = 0; i < full_noops_sent; i++) |
| 412 | (void)getreply(0); |
| 413 | |
| 414 | full_noops_sent = 0; |
| 415 | } |
| 416 | |
| 417 | static void |
| 418 | may_send_noop_char(void) |
| 419 | { |
| 420 | if (keep_alive_timeout != 0) { |
| 421 | if (last_timestamp != 0) { |
| 422 | time_t t = time(NULL((void *)0)); |
| 423 | |
| 424 | if (t - last_timestamp >= keep_alive_timeout) { |
| 425 | last_timestamp = t; |
| 426 | send_noop_char(); |
| 427 | } |
| 428 | } else { |
| 429 | last_timestamp = time(NULL((void *)0)); |
| 430 | } |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | char reply_string[BUFSIZ1024]; /* first line of previous reply */ |
| 435 | |
| 436 | int |
| 437 | getreply(int expecteof) |
| 438 | { |
| 439 | char current_line[BUFSIZ1024]; /* last line of previous reply */ |
| 440 | int c, n, lineno; |
| 441 | int dig; |
| 442 | int originalcode = 0, continuation = 0; |
| 443 | sig_t oldintr; |
| 444 | int pflag = 0; |
| 445 | char *cp, *pt = pasv; |
| 446 | |
| 447 | memset(current_line, 0, sizeof(current_line)); |
| 448 | oldintr = signal(SIGINT2, cmdabort); |
| 449 | for (lineno = 0 ;; lineno++) { |
| 450 | dig = n = code = 0; |
| 451 | cp = current_line; |
| 452 | while ((c = fgetc(cin)) != '\n') { |
| 453 | if (c == IAC255) { /* handle telnet commands */ |
| 454 | switch (c = fgetc(cin)) { |
Although the value stored to 'c' is used in the enclosing expression, the value is never actually read from 'c' | |
| 455 | case WILL251: |
| 456 | case WONT252: |
| 457 | c = fgetc(cin); |
| 458 | fprintf(cout, "%c%c%c", IAC255, DONT254, c); |
| 459 | (void)fflush(cout); |
| 460 | break; |
| 461 | case DO253: |
| 462 | case DONT254: |
| 463 | c = fgetc(cin); |
| 464 | fprintf(cout, "%c%c%c", IAC255, WONT252, c); |
| 465 | (void)fflush(cout); |
| 466 | break; |
| 467 | default: |
| 468 | break; |
| 469 | } |
| 470 | continue; |
| 471 | } |
| 472 | dig++; |
| 473 | if (c == EOF(-1)) { |
| 474 | if (expecteof) { |
| 475 | (void)signal(SIGINT2, oldintr); |
| 476 | code = 221; |
| 477 | return (0); |
| 478 | } |
| 479 | lostpeer(); |
| 480 | if (verbose) { |
| 481 | fputs( |
| 482 | "421 Service not available, remote server has closed connection.\n", ttyout); |
| 483 | (void)fflush(ttyout); |
| 484 | } |
| 485 | code = 421; |
| 486 | return (4); |
| 487 | } |
| 488 | if (c != '\r' && (verbose > 0 || |
| 489 | ((verbose > -1 && n == '5' && dig > 4) && |
| 490 | (((!n && c < '5') || (n && n < '5')) || |
| 491 | !retry_connect)))) { |
| 492 | if (proxflag && |
| 493 | (dig == 1 || (dig == 5 && verbose == 0))) |
| 494 | fprintf(ttyout, "%s:", hostname); |
| 495 | (void)putc(c, ttyout)(!__isthreaded ? __sputc(c, ttyout) : (putc)(c, ttyout)); |
| 496 | } |
| 497 | if (dig < 4 && isdigit(c)) |
| 498 | code = code * 10 + (c - '0'); |
| 499 | if (!pflag && (code == 227 || code == 228)) |
| 500 | pflag = 1; |
| 501 | else if (!pflag && code == 229) |
| 502 | pflag = 100; |
| 503 | if (dig > 4 && pflag == 1 && isdigit(c)) |
| 504 | pflag = 2; |
| 505 | if (pflag == 2) { |
| 506 | if (c != '\r' && c != ')') { |
| 507 | if (pt < &pasv[sizeof(pasv) - 1]) |
| 508 | *pt++ = c; |
| 509 | } else { |
| 510 | *pt = '\0'; |
| 511 | pflag = 3; |
| 512 | } |
| 513 | } |
| 514 | if (pflag == 100 && c == '(') |
| 515 | pflag = 2; |
| 516 | if (dig == 4 && c == '-') { |
| 517 | if (continuation) |
| 518 | code = 0; |
| 519 | continuation++; |
| 520 | } |
| 521 | if (n == 0) |
| 522 | n = c; |
| 523 | if (cp < ¤t_line[sizeof(current_line) - 1]) |
| 524 | *cp++ = c; |
| 525 | } |
| 526 | if (verbose > 0 || ((verbose > -1 && n == '5') && |
| 527 | (n < '5' || !retry_connect))) { |
| 528 | (void)putc(c, ttyout)(!__isthreaded ? __sputc(c, ttyout) : (putc)(c, ttyout)); |
| 529 | (void)fflush (ttyout); |
| 530 | } |
| 531 | if (lineno == 0) { |
| 532 | size_t len = cp - current_line; |
| 533 | |
| 534 | if (len > sizeof(reply_string)) |
| 535 | len = sizeof(reply_string); |
| 536 | |
| 537 | (void)strlcpy(reply_string, current_line, len); |
| 538 | } |
| 539 | if (continuation && code != originalcode) { |
| 540 | if (originalcode == 0) |
| 541 | originalcode = code; |
| 542 | continue; |
| 543 | } |
| 544 | *cp = '\0'; |
| 545 | if (n != '1') |
| 546 | cpend = 0; |
| 547 | (void)signal(SIGINT2, oldintr); |
| 548 | if (code == 421 || originalcode == 421) |
| 549 | lostpeer(); |
| 550 | if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN(void (*)(int))1) |
| 551 | (*oldintr)(SIGINT2); |
| 552 | return (n - '0'); |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | #ifndef SMALL |
| 557 | jmp_buf sendabort; |
| 558 | |
| 559 | void |
| 560 | abortsend(int signo) |
| 561 | { |
| 562 | int save_errno = errno(*__errno()); |
| 563 | alarmtimer(0); |
| 564 | mflag = 0; |
| 565 | abrtflag = 0; |
| 566 | #define MSG "\nsend aborted\nwaiting for remote to finish abort.\n" |
| 567 | (void) write(fileno(ttyout)(!__isthreaded ? ((ttyout)->_file) : (fileno)(ttyout)), MSG, strlen(MSG)); |
| 568 | #undef MSG |
| 569 | |
| 570 | errno(*__errno()) = save_errno; |
| 571 | longjmp(sendabort, 1); |
| 572 | } |
| 573 | |
| 574 | void |
| 575 | sendrequest(const char *cmd, const char *local, const char *remote, |
| 576 | int printnames) |
| 577 | { |
| 578 | struct stat st; |
| 579 | int c, d; |
| 580 | FILE * volatile fin, * volatile dout; |
| 581 | int (* volatile closefunc)(FILE *); |
| 582 | volatile sig_t oldinti, oldintr, oldintp; |
| 583 | volatile off_t hashbytes; |
| 584 | char * volatile lmode; |
| 585 | char buf[BUFSIZ1024], *bufp; |
| 586 | int oprogress, serrno; |
| 587 | |
| 588 | hashbytes = mark; |
| 589 | direction = "sent"; |
| 590 | dout = NULL((void *)0); |
| 591 | bytes = 0; |
| 592 | filesize = -1; |
| 593 | oprogress = progress; |
| 594 | if (verbose && printnames) { |
| 595 | if (local && *local != '-') |
| 596 | fprintf(ttyout, "local: %s ", local); |
| 597 | if (remote) |
| 598 | fprintf(ttyout, "remote: %s\n", remote); |
| 599 | } |
| 600 | if (proxy) { |
| 601 | proxtrans(cmd, local, remote); |
| 602 | return; |
| 603 | } |
| 604 | if (curtype != type) |
| 605 | changetype(type, 0); |
| 606 | closefunc = NULL((void *)0); |
| 607 | oldintr = NULL((void *)0); |
| 608 | oldintp = NULL((void *)0); |
| 609 | oldinti = NULL((void *)0); |
| 610 | lmode = "w"; |
| 611 | if (setjmp(sendabort)) { |
| 612 | while (cpend) { |
| 613 | (void)getreply(0); |
| 614 | } |
| 615 | if (data >= 0) { |
| 616 | (void)close(data); |
| 617 | data = -1; |
| 618 | } |
| 619 | if (oldintr) |
| 620 | (void)signal(SIGINT2, oldintr); |
| 621 | if (oldintp) |
| 622 | (void)signal(SIGPIPE13, oldintp); |
| 623 | if (oldinti) |
| 624 | (void)signal(SIGINFO29, oldinti); |
| 625 | progress = oprogress; |
| 626 | code = -1; |
| 627 | return; |
| 628 | } |
| 629 | oldintr = signal(SIGINT2, abortsend); |
| 630 | oldinti = signal(SIGINFO29, psummary); |
| 631 | if (strcmp(local, "-") == 0) { |
| 632 | fin = stdin(&__sF[0]); |
| 633 | if (progress == 1) |
| 634 | progress = 0; |
| 635 | } else if (*local == '|') { |
| 636 | oldintp = signal(SIGPIPE13, SIG_IGN(void (*)(int))1); |
| 637 | fin = popen(local + 1, "r"); |
| 638 | if (fin == NULL((void *)0)) { |
| 639 | warn("%s", local + 1); |
| 640 | (void)signal(SIGINT2, oldintr); |
| 641 | (void)signal(SIGPIPE13, oldintp); |
| 642 | (void)signal(SIGINFO29, oldinti); |
| 643 | code = -1; |
| 644 | return; |
| 645 | } |
| 646 | if (progress == 1) |
| 647 | progress = 0; |
| 648 | closefunc = pclose; |
| 649 | } else { |
| 650 | fin = fopen(local, "r"); |
| 651 | if (fin == NULL((void *)0)) { |
| 652 | warn("local: %s", local); |
| 653 | (void)signal(SIGINT2, oldintr); |
| 654 | (void)signal(SIGINFO29, oldinti); |
| 655 | code = -1; |
| 656 | return; |
| 657 | } |
| 658 | closefunc = fclose; |
| 659 | if (fstat(fileno(fin)(!__isthreaded ? ((fin)->_file) : (fileno)(fin)), &st) == -1 || |
| 660 | (st.st_mode & S_IFMT0170000) != S_IFREG0100000) { |
| 661 | fprintf(ttyout, "%s: not a plain file.\n", local); |
| 662 | (void)signal(SIGINT2, oldintr); |
| 663 | (void)signal(SIGINFO29, oldinti); |
| 664 | fclose(fin); |
| 665 | code = -1; |
| 666 | return; |
| 667 | } |
| 668 | filesize = st.st_size; |
| 669 | } |
| 670 | if (initconn()) { |
| 671 | (void)signal(SIGINT2, oldintr); |
| 672 | (void)signal(SIGINFO29, oldinti); |
| 673 | if (oldintp) |
| 674 | (void)signal(SIGPIPE13, oldintp); |
| 675 | code = -1; |
| 676 | progress = oprogress; |
| 677 | if (closefunc != NULL((void *)0)) |
| 678 | (*closefunc)(fin); |
| 679 | return; |
| 680 | } |
| 681 | if (setjmp(sendabort)) |
| 682 | goto abort; |
| 683 | |
| 684 | if (restart_point && |
| 685 | (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) { |
| 686 | int rc = -1; |
| 687 | |
| 688 | switch (curtype) { |
| 689 | case TYPE_A1: |
| 690 | rc = fseeko(fin, restart_point, SEEK_SET0); |
| 691 | break; |
| 692 | case TYPE_I3: |
| 693 | if (lseek(fileno(fin)(!__isthreaded ? ((fin)->_file) : (fileno)(fin)), restart_point, SEEK_SET0) != -1) |
| 694 | rc = 0; |
| 695 | break; |
| 696 | } |
| 697 | if (rc == -1) { |
| 698 | warn("local: %s", local); |
| 699 | progress = oprogress; |
| 700 | if (closefunc != NULL((void *)0)) |
| 701 | (*closefunc)(fin); |
| 702 | return; |
| 703 | } |
| 704 | if (command("REST %lld", (long long) restart_point) |
| 705 | != CONTINUE3) { |
| 706 | progress = oprogress; |
| 707 | if (closefunc != NULL((void *)0)) |
| 708 | (*closefunc)(fin); |
| 709 | return; |
| 710 | } |
| 711 | lmode = "r+w"; |
| 712 | } |
| 713 | if (remote) { |
| 714 | if (command("%s %s", cmd, remote) != PRELIM1) { |
| 715 | (void)signal(SIGINT2, oldintr); |
| 716 | (void)signal(SIGINFO29, oldinti); |
| 717 | progress = oprogress; |
| 718 | if (oldintp) |
| 719 | (void)signal(SIGPIPE13, oldintp); |
| 720 | if (closefunc != NULL((void *)0)) |
| 721 | (*closefunc)(fin); |
| 722 | return; |
| 723 | } |
| 724 | } else |
| 725 | if (command("%s", cmd) != PRELIM1) { |
| 726 | (void)signal(SIGINT2, oldintr); |
| 727 | (void)signal(SIGINFO29, oldinti); |
| 728 | progress = oprogress; |
| 729 | if (oldintp) |
| 730 | (void)signal(SIGPIPE13, oldintp); |
| 731 | if (closefunc != NULL((void *)0)) |
| 732 | (*closefunc)(fin); |
| 733 | return; |
| 734 | } |
| 735 | dout = dataconn(lmode); |
| 736 | if (dout == NULL((void *)0)) |
| 737 | goto abort; |
| 738 | progressmeter(-1, remote); |
| 739 | may_reset_noop_timeout(); |
| 740 | oldintp = signal(SIGPIPE13, SIG_IGN(void (*)(int))1); |
| 741 | serrno = 0; |
| 742 | switch (curtype) { |
| 743 | |
| 744 | case TYPE_I3: |
| 745 | d = 0; |
| 746 | while ((c = read(fileno(fin)(!__isthreaded ? ((fin)->_file) : (fileno)(fin)), buf, sizeof(buf))) > 0) { |
| 747 | may_send_noop_char(); |
| 748 | bytes += c; |
| 749 | for (bufp = buf; c > 0; c -= d, bufp += d) |
| 750 | if ((d = write(fileno(dout)(!__isthreaded ? ((dout)->_file) : (fileno)(dout)), bufp, (size_t)c)) |
| 751 | <= 0) |
| 752 | break; |
| 753 | if (hash && (!progress || filesize < 0) ) { |
| 754 | while (bytes >= hashbytes) { |
| 755 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 756 | hashbytes += mark; |
| 757 | } |
| 758 | (void)fflush(ttyout); |
| 759 | } |
| 760 | } |
| 761 | if (c == -1 || d == -1) |
| 762 | serrno = errno(*__errno()); |
| 763 | if (hash && (!progress || filesize < 0) && bytes > 0) { |
| 764 | if (bytes < mark) |
| 765 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 766 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
| 767 | (void)fflush(ttyout); |
| 768 | } |
| 769 | if (c < 0) |
| 770 | warnc(serrno, "local: %s", local); |
| 771 | if (d < 0) { |
| 772 | if (serrno != EPIPE32) |
| 773 | warnc(serrno, "netout"); |
| 774 | bytes = -1; |
| 775 | } |
| 776 | break; |
| 777 | |
| 778 | case TYPE_A1: |
| 779 | while ((c = fgetc(fin)) != EOF(-1)) { |
| 780 | may_send_noop_char(); |
| 781 | if (c == '\n') { |
| 782 | while (hash && (!progress || filesize < 0) && |
| 783 | (bytes >= hashbytes)) { |
| 784 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 785 | (void)fflush(ttyout); |
| 786 | hashbytes += mark; |
| 787 | } |
| 788 | if (ferror(dout)(!__isthreaded ? (((dout)->_flags & 0x0040) != 0) : (ferror )(dout))) |
| 789 | break; |
| 790 | (void)putc('\r', dout)(!__isthreaded ? __sputc('\r', dout) : (putc)('\r', dout)); |
| 791 | bytes++; |
| 792 | } |
| 793 | (void)putc(c, dout)(!__isthreaded ? __sputc(c, dout) : (putc)(c, dout)); |
| 794 | bytes++; |
| 795 | } |
| 796 | if (ferror(fin)(!__isthreaded ? (((fin)->_flags & 0x0040) != 0) : (ferror )(fin)) || ferror(dout)(!__isthreaded ? (((dout)->_flags & 0x0040) != 0) : (ferror )(dout))) |
| 797 | serrno = errno(*__errno()); |
| 798 | if (hash && (!progress || filesize < 0)) { |
| 799 | if (bytes < hashbytes) |
| 800 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 801 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
| 802 | (void)fflush(ttyout); |
| 803 | } |
| 804 | if (ferror(fin)(!__isthreaded ? (((fin)->_flags & 0x0040) != 0) : (ferror )(fin))) |
| 805 | warnc(serrno, "local: %s", local); |
| 806 | if (ferror(dout)(!__isthreaded ? (((dout)->_flags & 0x0040) != 0) : (ferror )(dout))) { |
| 807 | if (errno(*__errno()) != EPIPE32) |
| 808 | warnc(serrno, "netout"); |
| 809 | bytes = -1; |
| 810 | } |
| 811 | break; |
| 812 | } |
| 813 | progressmeter(1, NULL((void *)0)); |
| 814 | progress = oprogress; |
| 815 | if (closefunc != NULL((void *)0)) |
| 816 | (*closefunc)(fin); |
| 817 | (void)fclose(dout); |
| 818 | (void)getreply(0); |
| 819 | may_receive_noop_ack(); |
| 820 | (void)signal(SIGINT2, oldintr); |
| 821 | (void)signal(SIGINFO29, oldinti); |
| 822 | if (oldintp) |
| 823 | (void)signal(SIGPIPE13, oldintp); |
| 824 | if (bytes > 0) |
| 825 | ptransfer(0); |
| 826 | return; |
| 827 | abort: |
| 828 | (void)signal(SIGINT2, oldintr); |
| 829 | (void)signal(SIGINFO29, oldinti); |
| 830 | progress = oprogress; |
| 831 | if (oldintp) |
| 832 | (void)signal(SIGPIPE13, oldintp); |
| 833 | if (!cpend) { |
| 834 | code = -1; |
| 835 | return; |
| 836 | } |
| 837 | if (data >= 0) { |
| 838 | (void)close(data); |
| 839 | data = -1; |
| 840 | } |
| 841 | if (dout) |
| 842 | (void)fclose(dout); |
| 843 | (void)getreply(0); |
| 844 | code = -1; |
| 845 | if (closefunc != NULL((void *)0) && fin != NULL((void *)0)) |
| 846 | (*closefunc)(fin); |
| 847 | if (bytes > 0) |
| 848 | ptransfer(0); |
| 849 | } |
| 850 | #endif /* !SMALL */ |
| 851 | |
| 852 | jmp_buf recvabort; |
| 853 | |
| 854 | void |
| 855 | abortrecv(int signo) |
| 856 | { |
| 857 | |
| 858 | alarmtimer(0); |
| 859 | mflag = 0; |
| 860 | abrtflag = 0; |
| 861 | fputs("\nreceive aborted\nwaiting for remote to finish abort.\n", ttyout); |
| 862 | (void)fflush(ttyout); |
| 863 | longjmp(recvabort, 1); |
| 864 | } |
| 865 | |
| 866 | void |
| 867 | recvrequest(const char *cmd, const char * volatile local, const char *remote, |
| 868 | const char *lmode, int printnames, int ignorespecial) |
| 869 | { |
| 870 | FILE * volatile fout, * volatile din; |
| 871 | int (* volatile closefunc)(FILE *); |
| 872 | volatile sig_t oldinti, oldintr, oldintp; |
| 873 | int c, d, serrno; |
| 874 | volatile int is_retr, tcrflag, bare_lfs; |
| 875 | static size_t bufsize; |
| 876 | static char *buf; |
| 877 | volatile off_t hashbytes; |
| 878 | struct stat st; |
| 879 | time_t mtime; |
| 880 | int oprogress; |
| 881 | int opreserve; |
| 882 | |
| 883 | fout = NULL((void *)0); |
| 884 | din = NULL((void *)0); |
| 885 | oldinti = NULL((void *)0); |
| 886 | hashbytes = mark; |
| 887 | direction = "received"; |
| 888 | bytes = 0; |
| 889 | bare_lfs = 0; |
| 890 | filesize = -1; |
| 891 | oprogress = progress; |
| 892 | opreserve = preserve; |
| 893 | is_retr = strcmp(cmd, "RETR") == 0; |
| 894 | if (is_retr && verbose && printnames) { |
| 895 | if (local && (ignorespecial || *local != '-')) |
| 896 | fprintf(ttyout, "local: %s ", local); |
| 897 | if (remote) |
| 898 | fprintf(ttyout, "remote: %s\n", remote); |
| 899 | } |
| 900 | if (proxy && is_retr) { |
| 901 | proxtrans(cmd, local, remote); |
| 902 | return; |
| 903 | } |
| 904 | closefunc = NULL((void *)0); |
| 905 | oldintr = NULL((void *)0); |
| 906 | oldintp = NULL((void *)0); |
| 907 | tcrflag = !crflag && is_retr; |
| 908 | if (setjmp(recvabort)) { |
| 909 | while (cpend) { |
| 910 | (void)getreply(0); |
| 911 | } |
| 912 | if (data >= 0) { |
| 913 | (void)close(data); |
| 914 | data = -1; |
| 915 | } |
| 916 | if (oldintr) |
| 917 | (void)signal(SIGINT2, oldintr); |
| 918 | if (oldinti) |
| 919 | (void)signal(SIGINFO29, oldinti); |
| 920 | progress = oprogress; |
| 921 | preserve = opreserve; |
| 922 | code = -1; |
| 923 | return; |
| 924 | } |
| 925 | oldintr = signal(SIGINT2, abortrecv); |
| 926 | oldinti = signal(SIGINFO29, psummary); |
| 927 | if (ignorespecial || (strcmp(local, "-") && *local != '|')) { |
| 928 | if (access(local, W_OK0x02) == -1) { |
| 929 | char *dir; |
| 930 | |
| 931 | if (errno(*__errno()) != ENOENT2 && errno(*__errno()) != EACCES13) { |
| 932 | warn("local: %s", local); |
| 933 | (void)signal(SIGINT2, oldintr); |
| 934 | (void)signal(SIGINFO29, oldinti); |
| 935 | code = -1; |
| 936 | return; |
| 937 | } |
| 938 | dir = strrchr(local, '/'); |
| 939 | if (dir != NULL((void *)0)) |
| 940 | *dir = 0; |
| 941 | d = access(dir == local ? "/" : dir ? local : ".", W_OK0x02); |
| 942 | if (dir != NULL((void *)0)) |
| 943 | *dir = '/'; |
| 944 | if (d == -1) { |
| 945 | warn("local: %s", local); |
| 946 | (void)signal(SIGINT2, oldintr); |
| 947 | (void)signal(SIGINFO29, oldinti); |
| 948 | code = -1; |
| 949 | return; |
| 950 | } |
| 951 | if (!runique && errno(*__errno()) == EACCES13 && |
| 952 | chmod(local, (S_IRUSR0000400|S_IWUSR0000200)) == -1) { |
| 953 | warn("local: %s", local); |
| 954 | (void)signal(SIGINT2, oldintr); |
| 955 | (void)signal(SIGINFO29, oldinti); |
| 956 | code = -1; |
| 957 | return; |
| 958 | } |
| 959 | if (runique && errno(*__errno()) == EACCES13 && |
| 960 | (local = gunique(local)) == NULL((void *)0)) { |
| 961 | (void)signal(SIGINT2, oldintr); |
| 962 | (void)signal(SIGINFO29, oldinti); |
| 963 | code = -1; |
| 964 | return; |
| 965 | } |
| 966 | } else if (runique && (local = gunique(local)) == NULL((void *)0)) { |
| 967 | (void)signal(SIGINT2, oldintr); |
| 968 | (void)signal(SIGINFO29, oldinti); |
| 969 | code = -1; |
| 970 | return; |
| 971 | } |
| 972 | } |
| 973 | if (!is_retr) { |
| 974 | if (curtype != TYPE_A1) |
| 975 | changetype(TYPE_A1, 0); |
| 976 | } else { |
| 977 | if (curtype != type) |
| 978 | changetype(type, 0); |
| 979 | filesize = remotesize(remote, 0); |
| 980 | } |
| 981 | if (initconn()) { |
| 982 | (void)signal(SIGINT2, oldintr); |
| 983 | (void)signal(SIGINFO29, oldinti); |
| 984 | code = -1; |
| 985 | return; |
| 986 | } |
| 987 | if (setjmp(recvabort)) |
| 988 | goto abort; |
| 989 | if (is_retr && restart_point && |
| 990 | command("REST %lld", (long long) restart_point) != CONTINUE3) |
| 991 | return; |
| 992 | if (remote) { |
| 993 | if (command("%s %s", cmd, remote) != PRELIM1) { |
| 994 | (void)signal(SIGINT2, oldintr); |
| 995 | (void)signal(SIGINFO29, oldinti); |
| 996 | return; |
| 997 | } |
| 998 | } else { |
| 999 | if (command("%s", cmd) != PRELIM1) { |
| 1000 | (void)signal(SIGINT2, oldintr); |
| 1001 | (void)signal(SIGINFO29, oldinti); |
| 1002 | return; |
| 1003 | } |
| 1004 | } |
| 1005 | din = dataconn("r"); |
| 1006 | if (din == NULL((void *)0)) |
| 1007 | goto abort; |
| 1008 | if (!ignorespecial && strcmp(local, "-") == 0) { |
| 1009 | fout = stdout(&__sF[1]); |
| 1010 | preserve = 0; |
| 1011 | } else if (!ignorespecial && *local == '|') { |
| 1012 | oldintp = signal(SIGPIPE13, SIG_IGN(void (*)(int))1); |
| 1013 | fout = popen(local + 1, "w"); |
| 1014 | if (fout == NULL((void *)0)) { |
| 1015 | warn("%s", local+1); |
| 1016 | goto abort; |
| 1017 | } |
| 1018 | if (progress == 1) |
| 1019 | progress = 0; |
| 1020 | preserve = 0; |
| 1021 | closefunc = pclose; |
| 1022 | } else { |
| 1023 | fout = fopen(local, lmode); |
| 1024 | if (fout == NULL((void *)0)) { |
| 1025 | warn("local: %s", local); |
| 1026 | goto abort; |
| 1027 | } |
| 1028 | closefunc = fclose; |
| 1029 | } |
| 1030 | if (fstat(fileno(fout)(!__isthreaded ? ((fout)->_file) : (fileno)(fout)), &st) == -1 || st.st_blksize == 0) |
| 1031 | st.st_blksize = BUFSIZ1024; |
| 1032 | if (st.st_blksize > bufsize) { |
| 1033 | (void)free(buf); |
| 1034 | buf = malloc((unsigned)st.st_blksize); |
| 1035 | if (buf == NULL((void *)0)) { |
| 1036 | warn("malloc"); |
| 1037 | bufsize = 0; |
| 1038 | goto abort; |
| 1039 | } |
| 1040 | bufsize = st.st_blksize; |
| 1041 | } |
| 1042 | if ((st.st_mode & S_IFMT0170000) != S_IFREG0100000) { |
| 1043 | if (progress == 1) |
| 1044 | progress = 0; |
| 1045 | preserve = 0; |
| 1046 | } |
| 1047 | progressmeter(-1, remote); |
| 1048 | may_reset_noop_timeout(); |
| 1049 | serrno = 0; |
| 1050 | switch (curtype) { |
| 1051 | |
| 1052 | case TYPE_I3: |
| 1053 | if (restart_point && |
| 1054 | lseek(fileno(fout)(!__isthreaded ? ((fout)->_file) : (fileno)(fout)), restart_point, SEEK_SET0) == -1) { |
| 1055 | warn("local: %s", local); |
| 1056 | progress = oprogress; |
| 1057 | preserve = opreserve; |
| 1058 | if (closefunc != NULL((void *)0)) |
| 1059 | (*closefunc)(fout); |
| 1060 | return; |
| 1061 | } |
| 1062 | errno(*__errno()) = d = 0; |
| 1063 | while ((c = read(fileno(din)(!__isthreaded ? ((din)->_file) : (fileno)(din)), buf, bufsize)) > 0) { |
| 1064 | ssize_t wr; |
| 1065 | size_t rd = c; |
| 1066 | |
| 1067 | may_send_noop_char(); |
| 1068 | d = 0; |
| 1069 | do { |
| 1070 | wr = write(fileno(fout)(!__isthreaded ? ((fout)->_file) : (fileno)(fout)), buf + d, rd); |
| 1071 | if (wr == -1) { |
| 1072 | d = -1; |
| 1073 | break; |
| 1074 | } |
| 1075 | d += wr; |
| 1076 | rd -= wr; |
| 1077 | } while (d < c); |
| 1078 | if (rd != 0) |
| 1079 | break; |
| 1080 | bytes += c; |
| 1081 | if (hash && (!progress || filesize < 0)) { |
| 1082 | while (bytes >= hashbytes) { |
| 1083 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 1084 | hashbytes += mark; |
| 1085 | } |
| 1086 | (void)fflush(ttyout); |
| 1087 | } |
| 1088 | } |
| 1089 | if (c == -1 || d < c) |
| 1090 | serrno = errno(*__errno()); |
| 1091 | if (hash && (!progress || filesize < 0) && bytes > 0) { |
| 1092 | if (bytes < mark) |
| 1093 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 1094 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
| 1095 | (void)fflush(ttyout); |
| 1096 | } |
| 1097 | if (c < 0) { |
| 1098 | if (serrno != EPIPE32) |
| 1099 | warnc(serrno, "netin"); |
| 1100 | bytes = -1; |
| 1101 | } |
| 1102 | if (d < c) { |
| 1103 | if (d < 0) |
| 1104 | warnc(serrno, "local: %s", local); |
| 1105 | else |
| 1106 | warnx("%s: short write", local); |
| 1107 | } |
| 1108 | break; |
| 1109 | |
| 1110 | case TYPE_A1: |
| 1111 | if (restart_point) { |
| 1112 | int i, n, ch; |
| 1113 | |
| 1114 | if (fseek(fout, 0L, SEEK_SET0) == -1) |
| 1115 | goto done; |
| 1116 | n = restart_point; |
| 1117 | for (i = 0; i++ < n;) { |
| 1118 | if ((ch = fgetc(fout)) == EOF(-1)) { |
| 1119 | if (!ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) |
| 1120 | errno(*__errno()) = 0; |
| 1121 | goto done; |
| 1122 | } |
| 1123 | if (ch == '\n') |
| 1124 | i++; |
| 1125 | } |
| 1126 | if (fseek(fout, 0L, SEEK_CUR1) == -1) { |
| 1127 | done: |
| 1128 | if (errno(*__errno())) |
| 1129 | warn("local: %s", local); |
| 1130 | else |
| 1131 | warnx("local: %s", local); |
| 1132 | progress = oprogress; |
| 1133 | preserve = opreserve; |
| 1134 | if (closefunc != NULL((void *)0)) |
| 1135 | (*closefunc)(fout); |
| 1136 | return; |
| 1137 | } |
| 1138 | } |
| 1139 | while ((c = fgetc(din)) != EOF(-1)) { |
| 1140 | may_send_noop_char(); |
| 1141 | if (c == '\n') |
| 1142 | bare_lfs++; |
| 1143 | while (c == '\r') { |
| 1144 | while (hash && (!progress || filesize < 0) && |
| 1145 | (bytes >= hashbytes)) { |
| 1146 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 1147 | (void)fflush(ttyout); |
| 1148 | hashbytes += mark; |
| 1149 | } |
| 1150 | bytes++; |
| 1151 | if ((c = fgetc(din)) != '\n' || tcrflag) { |
| 1152 | if (ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) |
| 1153 | goto break2; |
| 1154 | (void)putc('\r', fout)(!__isthreaded ? __sputc('\r', fout) : (putc)('\r', fout)); |
| 1155 | if (c == '\0') { |
| 1156 | bytes++; |
| 1157 | goto contin2; |
| 1158 | } |
| 1159 | if (c == EOF(-1)) |
| 1160 | goto contin2; |
| 1161 | } |
| 1162 | } |
| 1163 | (void)putc(c, fout)(!__isthreaded ? __sputc(c, fout) : (putc)(c, fout)); |
| 1164 | bytes++; |
| 1165 | contin2: ; |
| 1166 | } |
| 1167 | break2: |
| 1168 | if (ferror(din)(!__isthreaded ? (((din)->_flags & 0x0040) != 0) : (ferror )(din)) || ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) |
| 1169 | serrno = errno(*__errno()); |
| 1170 | if (bare_lfs) { |
| 1171 | fprintf(ttyout, |
| 1172 | "WARNING! %d bare linefeeds received in ASCII mode.\n", bare_lfs); |
| 1173 | fputs("File may not have transferred correctly.\n", |
| 1174 | ttyout); |
| 1175 | } |
| 1176 | if (hash && (!progress || filesize < 0)) { |
| 1177 | if (bytes < hashbytes) |
| 1178 | (void)putc('#', ttyout)(!__isthreaded ? __sputc('#', ttyout) : (putc)('#', ttyout)); |
| 1179 | (void)putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
| 1180 | (void)fflush(ttyout); |
| 1181 | } |
| 1182 | if (ferror(din)(!__isthreaded ? (((din)->_flags & 0x0040) != 0) : (ferror )(din))) { |
| 1183 | if (serrno != EPIPE32) |
| 1184 | warnc(serrno, "netin"); |
| 1185 | bytes = -1; |
| 1186 | } |
| 1187 | if (ferror(fout)(!__isthreaded ? (((fout)->_flags & 0x0040) != 0) : (ferror )(fout))) |
| 1188 | warnc(serrno, "local: %s", local); |
| 1189 | break; |
| 1190 | } |
| 1191 | progressmeter(1, NULL((void *)0)); |
| 1192 | progress = oprogress; |
| 1193 | preserve = opreserve; |
| 1194 | if (closefunc != NULL((void *)0)) |
| 1195 | (*closefunc)(fout); |
| 1196 | (void)signal(SIGINT2, oldintr); |
| 1197 | (void)signal(SIGINFO29, oldinti); |
| 1198 | if (oldintp) |
| 1199 | (void)signal(SIGPIPE13, oldintp); |
| 1200 | (void)fclose(din); |
| 1201 | (void)getreply(0); |
| 1202 | may_receive_noop_ack(); |
| 1203 | if (bytes >= 0 && is_retr) { |
| 1204 | if (bytes > 0) |
| 1205 | ptransfer(0); |
| 1206 | if (preserve && (closefunc == fclose)) { |
| 1207 | mtime = remotemodtime(remote, 0); |
| 1208 | if (mtime != -1) { |
| 1209 | struct timespec times[2]; |
| 1210 | |
| 1211 | times[0].tv_nsec = UTIME_OMIT-1L; |
| 1212 | times[1].tv_sec = mtime; |
| 1213 | times[1].tv_nsec = 0; |
| 1214 | if (utimensat(AT_FDCWD-100, local, times, 0) == -1) |
| 1215 | fprintf(ttyout, |
| 1216 | "Can't change modification time on %s to %s", |
| 1217 | local, asctime(localtime(&mtime))); |
| 1218 | } |
| 1219 | } |
| 1220 | } |
| 1221 | return; |
| 1222 | |
| 1223 | abort: |
| 1224 | /* abort using RFC959 recommended IP,SYNC sequence */ |
| 1225 | progress = oprogress; |
| 1226 | preserve = opreserve; |
| 1227 | if (oldintp) |
| 1228 | (void)signal(SIGPIPE13, oldintp); |
| 1229 | (void)signal(SIGINT2, SIG_IGN(void (*)(int))1); |
| 1230 | if (!cpend) { |
| 1231 | code = -1; |
| 1232 | (void)signal(SIGINT2, oldintr); |
| 1233 | (void)signal(SIGINFO29, oldinti); |
| 1234 | return; |
| 1235 | } |
| 1236 | |
| 1237 | abort_remote(din); |
| 1238 | code = -1; |
| 1239 | if (data >= 0) { |
| 1240 | (void)close(data); |
| 1241 | data = -1; |
| 1242 | } |
| 1243 | if (closefunc != NULL((void *)0) && fout != NULL((void *)0)) |
| 1244 | (*closefunc)(fout); |
| 1245 | if (din) |
| 1246 | (void)fclose(din); |
| 1247 | if (bytes > 0) |
| 1248 | ptransfer(0); |
| 1249 | (void)signal(SIGINT2, oldintr); |
| 1250 | (void)signal(SIGINFO29, oldinti); |
| 1251 | } |
| 1252 | |
| 1253 | /* |
| 1254 | * Need to start a listen on the data channel before we send the command, |
| 1255 | * otherwise the server's connect may fail. |
| 1256 | */ |
| 1257 | int |
| 1258 | initconn(void) |
| 1259 | { |
| 1260 | char *p, *a; |
| 1261 | int result = ERROR5, tmpno = 0; |
| 1262 | int on = 1; |
| 1263 | int error; |
| 1264 | u_int addr[16], port[2]; |
| 1265 | u_int af, hal, pal; |
| 1266 | char *pasvcmd = NULL((void *)0); |
| 1267 | socklen_t namelen; |
| 1268 | #ifndef SMALL |
| 1269 | struct addrinfo *ares; |
| 1270 | #endif |
| 1271 | |
| 1272 | if (myctladdr.sa.sa_family == AF_INET624 |
| 1273 | && (IN6_IS_ADDR_LINKLOCAL(&myctladdr.sin6.sin6_addr)(((&myctladdr.sin6.sin6_addr)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&myctladdr.sin6.sin6_addr)->__u6_addr .__u6_addr8[1] & 0xc0) == 0x80)) |
| 1274 | || IN6_IS_ADDR_SITELOCAL(&myctladdr.sin6.sin6_addr)(((&myctladdr.sin6.sin6_addr)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&myctladdr.sin6.sin6_addr)->__u6_addr .__u6_addr8[1] & 0xc0) == 0xc0)))) { |
| 1275 | warnx("use of scoped address can be troublesome"); |
| 1276 | } |
| 1277 | #ifndef SMALL |
| 1278 | if (srcaddr) { |
| 1279 | struct addrinfo ahints; |
| 1280 | |
| 1281 | memset(&ahints, 0, sizeof(ahints)); |
| 1282 | ahints.ai_family = family; |
| 1283 | ahints.ai_socktype = SOCK_STREAM1; |
| 1284 | ahints.ai_flags |= AI_NUMERICHOST4; |
| 1285 | ahints.ai_protocol = 0; |
| 1286 | |
| 1287 | error = getaddrinfo(srcaddr, NULL((void *)0), &ahints, &ares); |
| 1288 | if (error) { |
| 1289 | warnx("%s: %s", srcaddr, gai_strerror(error)); |
| 1290 | code = -1; |
| 1291 | return (0); |
| 1292 | } |
| 1293 | } |
| 1294 | #endif /* !SMALL */ |
| 1295 | reinit: |
| 1296 | if (passivemode) { |
| 1297 | data_addr = myctladdr; |
| 1298 | data = socket(data_addr.sa.sa_family, SOCK_STREAM1, 0); |
| 1299 | if (data == -1) { |
| 1300 | warn("socket"); |
| 1301 | return (1); |
| 1302 | } |
| 1303 | #ifndef SMALL |
| 1304 | if (srcaddr) { |
| 1305 | if (bind(data, ares->ai_addr, ares->ai_addrlen) == -1) { |
| 1306 | warn("bind"); |
| 1307 | close(data); |
| 1308 | return (1); |
| 1309 | } |
| 1310 | } |
| 1311 | if ((options & SO_DEBUG0x0001) && |
| 1312 | setsockopt(data, SOL_SOCKET0xffff, SO_DEBUG0x0001, (char *)&on, |
| 1313 | sizeof(on)) == -1) |
| 1314 | warn("setsockopt (ignored)"); |
| 1315 | #endif /* !SMALL */ |
| 1316 | switch (data_addr.sa.sa_family) { |
| 1317 | case AF_INET2: |
| 1318 | if (epsv4 && !epsv4bad) { |
| 1319 | int ov; |
| 1320 | /* shut this command up in case it fails */ |
| 1321 | ov = verbose; |
| 1322 | verbose = -1; |
| 1323 | result = command(pasvcmd = "EPSV"); |
| 1324 | /* |
| 1325 | * now back to whatever verbosity we had before |
| 1326 | * and we can try PASV |
| 1327 | */ |
| 1328 | verbose = ov; |
| 1329 | if (code / 10 == 22 && code != 229) { |
| 1330 | fputs( |
| 1331 | "wrong server: return code must be 229\n", |
| 1332 | ttyout); |
| 1333 | result = COMPLETE2 + 1; |
| 1334 | } |
| 1335 | if (result != COMPLETE2) { |
| 1336 | epsv4bad = 1; |
| 1337 | #ifndef SMALL |
| 1338 | if (debug) { |
| 1339 | fputs( |
| 1340 | "disabling epsv4 for this connection\n", |
| 1341 | ttyout); |
| 1342 | } |
| 1343 | #endif /* !SMALL */ |
| 1344 | } |
| 1345 | } |
| 1346 | if (result != COMPLETE2) |
| 1347 | result = command(pasvcmd = "PASV"); |
| 1348 | break; |
| 1349 | case AF_INET624: |
| 1350 | result = command(pasvcmd = "EPSV"); |
| 1351 | if (code / 10 == 22 && code != 229) { |
| 1352 | fputs( |
| 1353 | "wrong server: return code must be 229\n", |
| 1354 | ttyout); |
| 1355 | result = COMPLETE2 + 1; |
| 1356 | } |
| 1357 | if (result != COMPLETE2) |
| 1358 | result = command(pasvcmd = "LPSV"); |
| 1359 | break; |
| 1360 | default: |
| 1361 | result = COMPLETE2 + 1; |
| 1362 | break; |
| 1363 | } |
| 1364 | if (result != COMPLETE2) { |
| 1365 | if (activefallback) { |
| 1366 | (void)close(data); |
| 1367 | data = -1; |
| 1368 | passivemode = 0; |
| 1369 | activefallback = 0; |
| 1370 | goto reinit; |
| 1371 | } |
| 1372 | fputs("Passive mode refused.\n", ttyout); |
| 1373 | goto bad; |
| 1374 | } |
| 1375 | |
| 1376 | #define pack2(var, off)(((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0)) \ |
| 1377 | (((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0)) |
| 1378 | #define pack4(var, off)(((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0)) \ |
| 1379 | (((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \ |
| 1380 | ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0)) |
| 1381 | |
| 1382 | /* |
| 1383 | * What we've got at this point is a string of comma separated |
| 1384 | * one-byte unsigned integer values, separated by commas. |
| 1385 | */ |
| 1386 | if (!pasvcmd) |
| 1387 | goto bad; |
| 1388 | if (strcmp(pasvcmd, "PASV") == 0) { |
| 1389 | if (data_addr.sa.sa_family != AF_INET2) { |
| 1390 | fputs( |
| 1391 | "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); |
| 1392 | goto bad; |
| 1393 | } |
| 1394 | if (code / 10 == 22 && code != 227) { |
| 1395 | fputs("wrong server: return code must be 227\n", |
| 1396 | ttyout); |
| 1397 | goto bad; |
| 1398 | } |
| 1399 | error = sscanf(pasv, "%u,%u,%u,%u,%u,%u", |
| 1400 | &addr[0], &addr[1], &addr[2], &addr[3], |
| 1401 | &port[0], &port[1]); |
| 1402 | if (error != 6) { |
| 1403 | fputs( |
| 1404 | "Passive mode address scan failure. Shouldn't happen!\n", ttyout); |
| 1405 | goto bad; |
| 1406 | } |
| 1407 | memset(&data_addr, 0, sizeof(data_addr)); |
| 1408 | data_addr.sin.sin_family = AF_INET2; |
| 1409 | data_addr.sin.sin_len = sizeof(struct sockaddr_in); |
| 1410 | data_addr.sin.sin_addr.s_addr = |
| 1411 | htonl(pack4(addr, 0))(__uint32_t)(__builtin_constant_p((((addr[(0) + 0] & 0xff ) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ( (addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(0) + 0] & 0xff) << 24) | ((addr [(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff ) << 8) | ((addr[(0) + 3] & 0xff) << 0)))); |
| 1412 | data_addr.sin.sin_port = htons(pack2(port, 0))(__uint16_t)(__builtin_constant_p((((port[(0) + 0] & 0xff ) << 8) | ((port[(0) + 1] & 0xff) << 0))) ? ( __uint16_t)(((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xffU) << 8 | ((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xff00U) >> 8) : __swap16md((((port[(0) + 0] & 0xff) << 8) | ( (port[(0) + 1] & 0xff) << 0)))); |
| 1413 | } else if (strcmp(pasvcmd, "LPSV") == 0) { |
| 1414 | if (code / 10 == 22 && code != 228) { |
| 1415 | fputs("wrong server: return code must be 228\n", |
| 1416 | ttyout); |
| 1417 | goto bad; |
| 1418 | } |
| 1419 | switch (data_addr.sa.sa_family) { |
| 1420 | case AF_INET2: |
| 1421 | error = sscanf(pasv, |
| 1422 | "%u,%u,%u,%u,%u,%u,%u,%u,%u", |
| 1423 | &af, &hal, |
| 1424 | &addr[0], &addr[1], &addr[2], &addr[3], |
| 1425 | &pal, &port[0], &port[1]); |
| 1426 | if (error != 9) { |
| 1427 | fputs( |
| 1428 | "Passive mode address scan failure. Shouldn't happen!\n", ttyout); |
| 1429 | goto bad; |
| 1430 | } |
| 1431 | if (af != 4 || hal != 4 || pal != 2) { |
| 1432 | fputs( |
| 1433 | "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); |
| 1434 | error = 1; |
| 1435 | goto bad; |
| 1436 | } |
| 1437 | |
| 1438 | memset(&data_addr, 0, sizeof(data_addr)); |
| 1439 | data_addr.sin.sin_family = AF_INET2; |
| 1440 | data_addr.sin.sin_len = sizeof(struct sockaddr_in); |
| 1441 | data_addr.sin.sin_addr.s_addr = |
| 1442 | htonl(pack4(addr, 0))(__uint32_t)(__builtin_constant_p((((addr[(0) + 0] & 0xff ) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ( (addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(0) + 0] & 0xff) << 24) | ((addr [(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff ) << 8) | ((addr[(0) + 3] & 0xff) << 0)))); |
| 1443 | data_addr.sin.sin_port = htons(pack2(port, 0))(__uint16_t)(__builtin_constant_p((((port[(0) + 0] & 0xff ) << 8) | ((port[(0) + 1] & 0xff) << 0))) ? ( __uint16_t)(((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xffU) << 8 | ((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xff00U) >> 8) : __swap16md((((port[(0) + 0] & 0xff) << 8) | ( (port[(0) + 1] & 0xff) << 0)))); |
| 1444 | break; |
| 1445 | case AF_INET624: |
| 1446 | error = sscanf(pasv, |
| 1447 | "%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u", |
| 1448 | &af, &hal, |
| 1449 | &addr[0], &addr[1], &addr[2], &addr[3], |
| 1450 | &addr[4], &addr[5], &addr[6], &addr[7], |
| 1451 | &addr[8], &addr[9], &addr[10], |
| 1452 | &addr[11], &addr[12], &addr[13], |
| 1453 | &addr[14], &addr[15], |
| 1454 | &pal, &port[0], &port[1]); |
| 1455 | if (error != 21) { |
| 1456 | fputs( |
| 1457 | "Passive mode address scan failure. Shouldn't happen!\n", ttyout); |
| 1458 | goto bad; |
| 1459 | } |
| 1460 | if (af != 6 || hal != 16 || pal != 2) { |
| 1461 | fputs( |
| 1462 | "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); |
| 1463 | goto bad; |
| 1464 | } |
| 1465 | |
| 1466 | memset(&data_addr, 0, sizeof(data_addr)); |
| 1467 | data_addr.sin6.sin6_family = AF_INET624; |
| 1468 | data_addr.sin6.sin6_len = sizeof(struct sockaddr_in6); |
| 1469 | { |
| 1470 | u_int32_t *p32; |
| 1471 | p32 = (u_int32_t *)&data_addr.sin6.sin6_addr; |
| 1472 | p32[0] = htonl(pack4(addr, 0))(__uint32_t)(__builtin_constant_p((((addr[(0) + 0] & 0xff ) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ( (addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(0) + 0] & 0xff) << 24) | ((addr[(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff) << 8) | ((addr[(0) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(0) + 0] & 0xff) << 24) | ((addr [(0) + 1] & 0xff) << 16) | ((addr[(0) + 2] & 0xff ) << 8) | ((addr[(0) + 3] & 0xff) << 0)))); |
| 1473 | p32[1] = htonl(pack4(addr, 4))(__uint32_t)(__builtin_constant_p((((addr[(4) + 0] & 0xff ) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ( (addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(4) + 0] & 0xff) << 24) | ((addr[(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff) << 8) | ((addr[(4) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(4) + 0] & 0xff) << 24) | ((addr [(4) + 1] & 0xff) << 16) | ((addr[(4) + 2] & 0xff ) << 8) | ((addr[(4) + 3] & 0xff) << 0)))); |
| 1474 | p32[2] = htonl(pack4(addr, 8))(__uint32_t)(__builtin_constant_p((((addr[(8) + 0] & 0xff ) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ( (addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t )((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ((__uint32_t)((((addr[(8) + 0] & 0xff) << 24) | ((addr[(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff) << 8) | ((addr[(8) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(8) + 0] & 0xff) << 24) | ((addr [(8) + 1] & 0xff) << 16) | ((addr[(8) + 2] & 0xff ) << 8) | ((addr[(8) + 3] & 0xff) << 0)))); |
| 1475 | p32[3] = htonl(pack4(addr, 12))(__uint32_t)(__builtin_constant_p((((addr[(12) + 0] & 0xff ) << 24) | ((addr[(12) + 1] & 0xff) << 16) | ( (addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3] & 0xff) << 0))) ? (__uint32_t)(((__uint32_t)((((addr[(12 ) + 0] & 0xff) << 24) | ((addr[(12) + 1] & 0xff ) << 16) | ((addr[(12) + 2] & 0xff) << 8) | ( (addr[(12) + 3] & 0xff) << 0))) & 0xff) << 24 | ((__uint32_t)((((addr[(12) + 0] & 0xff) << 24 ) | ((addr[(12) + 1] & 0xff) << 16) | ((addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3] & 0xff) << 0))) & 0xff00) << 8 | ((__uint32_t)((((addr[(12) + 0] & 0xff) << 24) | ((addr[(12) + 1] & 0xff) << 16) | ((addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3] & 0xff) << 0))) & 0xff0000) >> 8 | ( (__uint32_t)((((addr[(12) + 0] & 0xff) << 24) | ((addr [(12) + 1] & 0xff) << 16) | ((addr[(12) + 2] & 0xff ) << 8) | ((addr[(12) + 3] & 0xff) << 0))) & 0xff000000) >> 24) : __swap32md((((addr[(12) + 0] & 0xff) << 24) | ((addr[(12) + 1] & 0xff) << 16 ) | ((addr[(12) + 2] & 0xff) << 8) | ((addr[(12) + 3 ] & 0xff) << 0)))); |
| 1476 | } |
| 1477 | data_addr.sin6.sin6_port = htons(pack2(port, 0))(__uint16_t)(__builtin_constant_p((((port[(0) + 0] & 0xff ) << 8) | ((port[(0) + 1] & 0xff) << 0))) ? ( __uint16_t)(((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xffU) << 8 | ((__uint16_t)((((port[(0) + 0] & 0xff) << 8) | ((port[(0) + 1] & 0xff) << 0))) & 0xff00U) >> 8) : __swap16md((((port[(0) + 0] & 0xff) << 8) | ( (port[(0) + 1] & 0xff) << 0)))); |
| 1478 | break; |
| 1479 | default: |
| 1480 | fputs("Bad family!\n", ttyout); |
| 1481 | goto bad; |
| 1482 | } |
| 1483 | } else if (strcmp(pasvcmd, "EPSV") == 0) { |
| 1484 | char delim[4]; |
| 1485 | |
| 1486 | port[0] = 0; |
| 1487 | if (code / 10 == 22 && code != 229) { |
| 1488 | fputs("wrong server: return code must be 229\n", |
| 1489 | ttyout); |
| 1490 | goto bad; |
| 1491 | } |
| 1492 | if (sscanf(pasv, "%c%c%c%d%c", &delim[0], |
| 1493 | &delim[1], &delim[2], &port[1], |
| 1494 | &delim[3]) != 5) { |
| 1495 | fputs("parse error!\n", ttyout); |
| 1496 | goto bad; |
| 1497 | } |
| 1498 | if (delim[0] != delim[1] || delim[0] != delim[2] |
| 1499 | || delim[0] != delim[3]) { |
| 1500 | fputs("parse error!\n", ttyout); |
| 1501 | goto bad; |
| 1502 | } |
| 1503 | data_addr = hisctladdr; |
| 1504 | data_addr.sin.sin_port = htons(port[1])(__uint16_t)(__builtin_constant_p(port[1]) ? (__uint16_t)(((__uint16_t )(port[1]) & 0xffU) << 8 | ((__uint16_t)(port[1]) & 0xff00U) >> 8) : __swap16md(port[1])); |
| 1505 | } else |
| 1506 | goto bad; |
| 1507 | |
| 1508 | error = timed_connect(data, &data_addr.sa, data_addr.sa.sa_len, |
| 1509 | connect_timeout); |
| 1510 | if (error != 0) { |
| 1511 | if (activefallback) { |
| 1512 | (void)close(data); |
| 1513 | data = -1; |
| 1514 | passivemode = 0; |
| 1515 | activefallback = 0; |
| 1516 | goto reinit; |
| 1517 | } |
| 1518 | warn("connect"); |
| 1519 | goto bad; |
| 1520 | } |
| 1521 | if (data_addr.sa.sa_family == AF_INET2) { |
| 1522 | on = IPTOS_THROUGHPUT0x08; |
| 1523 | if (setsockopt(data, IPPROTO_IP0, IP_TOS3, (char *)&on, |
| 1524 | sizeof(int)) == -1) |
| 1525 | warn("setsockopt TOS (ignored)"); |
| 1526 | } |
| 1527 | return (0); |
| 1528 | } |
| 1529 | |
| 1530 | noport: |
| 1531 | data_addr = myctladdr; |
| 1532 | if (sendport) |
| 1533 | data_addr.sin.sin_port = 0; /* let system pick one */ |
| 1534 | if (data != -1) |
| 1535 | (void)close(data); |
| 1536 | data = socket(data_addr.sa.sa_family, SOCK_STREAM1, 0); |
| 1537 | if (data == -1) { |
| 1538 | warn("socket"); |
| 1539 | if (tmpno) |
| 1540 | sendport = 1; |
| 1541 | return (1); |
| 1542 | } |
| 1543 | if (!sendport) |
| 1544 | if (setsockopt(data, SOL_SOCKET0xffff, SO_REUSEADDR0x0004, (char *)&on, |
| 1545 | sizeof(on)) == -1) { |
| 1546 | warn("setsockopt (reuse address)"); |
| 1547 | goto bad; |
| 1548 | } |
| 1549 | switch (data_addr.sa.sa_family) { |
| 1550 | case AF_INET2: |
| 1551 | on = IP_PORTRANGE_HIGH1; |
| 1552 | if (setsockopt(data, IPPROTO_IP0, IP_PORTRANGE19, |
| 1553 | (char *)&on, sizeof(on)) == -1) |
| 1554 | warn("setsockopt IP_PORTRANGE (ignored)"); |
| 1555 | break; |
| 1556 | case AF_INET624: |
| 1557 | on = IPV6_PORTRANGE_HIGH1; |
| 1558 | if (setsockopt(data, IPPROTO_IPV641, IPV6_PORTRANGE14, |
| 1559 | (char *)&on, sizeof(on)) == -1) |
| 1560 | warn("setsockopt IPV6_PORTRANGE (ignored)"); |
| 1561 | break; |
| 1562 | } |
| 1563 | if (bind(data, &data_addr.sa, data_addr.sa.sa_len) == -1) { |
| 1564 | warn("bind"); |
| 1565 | goto bad; |
| 1566 | } |
| 1567 | #ifndef SMALL |
| 1568 | if (options & SO_DEBUG0x0001 && |
| 1569 | setsockopt(data, SOL_SOCKET0xffff, SO_DEBUG0x0001, (char *)&on, |
| 1570 | sizeof(on)) == -1) |
| 1571 | warn("setsockopt (ignored)"); |
| 1572 | #endif /* !SMALL */ |
| 1573 | namelen = sizeof(data_addr); |
| 1574 | if (getsockname(data, &data_addr.sa, &namelen) == -1) { |
| 1575 | warn("getsockname"); |
| 1576 | goto bad; |
| 1577 | } |
| 1578 | if (listen(data, 1) == -1) |
| 1579 | warn("listen"); |
| 1580 | |
| 1581 | #define UC(b)(((int)b)&0xff) (((int)b)&0xff) |
| 1582 | |
| 1583 | if (sendport) { |
| 1584 | char hname[NI_MAXHOST256], pbuf[NI_MAXSERV32]; |
| 1585 | int af_tmp; |
| 1586 | union sockaddr_union tmp; |
| 1587 | |
| 1588 | tmp = data_addr; |
| 1589 | switch (tmp.sa.sa_family) { |
| 1590 | case AF_INET2: |
| 1591 | if (!epsv4 || epsv4bad) { |
| 1592 | result = COMPLETE2 +1; |
| 1593 | break; |
| 1594 | } |
| 1595 | /*FALLTHROUGH*/ |
| 1596 | case AF_INET624: |
| 1597 | if (tmp.sa.sa_family == AF_INET624) |
| 1598 | tmp.sin6.sin6_scope_id = 0; |
| 1599 | af_tmp = (tmp.sa.sa_family == AF_INET2) ? 1 : 2; |
| 1600 | if (getnameinfo(&tmp.sa, tmp.sa.sa_len, hname, |
| 1601 | sizeof(hname), pbuf, sizeof(pbuf), |
| 1602 | NI_NUMERICHOST1 | NI_NUMERICSERV2)) { |
| 1603 | result = ERROR5; |
| 1604 | } else { |
| 1605 | result = command("EPRT |%d|%s|%s|", |
| 1606 | af_tmp, hname, pbuf); |
| 1607 | if (result != COMPLETE2) { |
| 1608 | epsv4bad = 1; |
| 1609 | #ifndef SMALL |
| 1610 | if (debug) { |
| 1611 | fputs( |
| 1612 | "disabling epsv4 for this connection\n", |
| 1613 | ttyout); |
| 1614 | } |
| 1615 | #endif /* !SMALL */ |
| 1616 | } |
| 1617 | } |
| 1618 | break; |
| 1619 | default: |
| 1620 | result = COMPLETE2 + 1; |
| 1621 | break; |
| 1622 | } |
| 1623 | if (result == COMPLETE2) |
| 1624 | goto skip_port; |
| 1625 | |
| 1626 | switch (data_addr.sa.sa_family) { |
| 1627 | case AF_INET2: |
| 1628 | a = (char *)&data_addr.sin.sin_addr; |
| 1629 | p = (char *)&data_addr.sin.sin_port; |
| 1630 | result = command("PORT %d,%d,%d,%d,%d,%d", |
| 1631 | UC(a[0])(((int)a[0])&0xff), UC(a[1])(((int)a[1])&0xff), UC(a[2])(((int)a[2])&0xff), UC(a[3])(((int)a[3])&0xff), |
| 1632 | UC(p[0])(((int)p[0])&0xff), UC(p[1])(((int)p[1])&0xff)); |
| 1633 | break; |
| 1634 | case AF_INET624: |
| 1635 | a = (char *)&data_addr.sin6.sin6_addr; |
| 1636 | p = (char *)&data_addr.sin6.sin6_port; |
| 1637 | result = command( |
| 1638 | "LPRT %d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d", |
| 1639 | 6, 16, |
| 1640 | UC(a[0])(((int)a[0])&0xff),UC(a[1])(((int)a[1])&0xff),UC(a[2])(((int)a[2])&0xff),UC(a[3])(((int)a[3])&0xff), |
| 1641 | UC(a[4])(((int)a[4])&0xff),UC(a[5])(((int)a[5])&0xff),UC(a[6])(((int)a[6])&0xff),UC(a[7])(((int)a[7])&0xff), |
| 1642 | UC(a[8])(((int)a[8])&0xff),UC(a[9])(((int)a[9])&0xff),UC(a[10])(((int)a[10])&0xff),UC(a[11])(((int)a[11])&0xff), |
| 1643 | UC(a[12])(((int)a[12])&0xff),UC(a[13])(((int)a[13])&0xff),UC(a[14])(((int)a[14])&0xff),UC(a[15])(((int)a[15])&0xff), |
| 1644 | 2, UC(p[0])(((int)p[0])&0xff), UC(p[1])(((int)p[1])&0xff)); |
| 1645 | break; |
| 1646 | default: |
| 1647 | result = COMPLETE2 + 1; /* xxx */ |
| 1648 | } |
| 1649 | skip_port: |
| 1650 | |
| 1651 | if (result == ERROR5 && sendport == -1) { |
| 1652 | sendport = 0; |
| 1653 | tmpno = 1; |
| 1654 | goto noport; |
| 1655 | } |
| 1656 | return (result != COMPLETE2); |
| 1657 | } |
| 1658 | if (tmpno) |
| 1659 | sendport = 1; |
| 1660 | if (data_addr.sa.sa_family == AF_INET2) { |
| 1661 | on = IPTOS_THROUGHPUT0x08; |
| 1662 | if (setsockopt(data, IPPROTO_IP0, IP_TOS3, (char *)&on, |
| 1663 | sizeof(int)) == -1) |
| 1664 | warn("setsockopt TOS (ignored)"); |
| 1665 | } |
| 1666 | return (0); |
| 1667 | bad: |
| 1668 | (void)close(data), data = -1; |
| 1669 | if (tmpno) |
| 1670 | sendport = 1; |
| 1671 | return (1); |
| 1672 | } |
| 1673 | |
| 1674 | FILE * |
| 1675 | dataconn(const char *lmode) |
| 1676 | { |
| 1677 | union sockaddr_union from; |
| 1678 | socklen_t fromlen = myctladdr.sa.sa_len; |
| 1679 | int s; |
| 1680 | |
| 1681 | if (passivemode) |
| 1682 | return (fdopen(data, lmode)); |
| 1683 | |
| 1684 | s = accept(data, &from.sa, &fromlen); |
| 1685 | if (s == -1) { |
| 1686 | warn("accept"); |
| 1687 | (void)close(data), data = -1; |
| 1688 | return (NULL((void *)0)); |
| 1689 | } |
| 1690 | (void)close(data); |
| 1691 | data = s; |
| 1692 | if (from.sa.sa_family == AF_INET2) { |
| 1693 | int tos = IPTOS_THROUGHPUT0x08; |
| 1694 | if (setsockopt(s, IPPROTO_IP0, IP_TOS3, (char *)&tos, |
| 1695 | sizeof(int)) == -1) { |
| 1696 | warn("setsockopt TOS (ignored)"); |
| 1697 | } |
| 1698 | } |
| 1699 | return (fdopen(data, lmode)); |
| 1700 | } |
| 1701 | |
| 1702 | void |
| 1703 | psummary(int signo) |
| 1704 | { |
| 1705 | int save_errno = errno(*__errno()); |
| 1706 | |
| 1707 | if (bytes > 0) |
| 1708 | ptransfer(1); |
| 1709 | errno(*__errno()) = save_errno; |
| 1710 | } |
| 1711 | |
| 1712 | void |
| 1713 | psabort(int signo) |
| 1714 | { |
| 1715 | |
| 1716 | alarmtimer(0); |
| 1717 | abrtflag++; |
| 1718 | } |
| 1719 | |
| 1720 | void |
| 1721 | pswitch(int flag) |
| 1722 | { |
| 1723 | sig_t oldintr; |
| 1724 | static struct comvars { |
| 1725 | int connect; |
| 1726 | char name[HOST_NAME_MAX255+1]; |
| 1727 | union sockaddr_union mctl; |
| 1728 | union sockaddr_union hctl; |
| 1729 | FILE *in; |
| 1730 | FILE *out; |
| 1731 | int tpe; |
| 1732 | int curtpe; |
| 1733 | int cpnd; |
| 1734 | int sunqe; |
| 1735 | int runqe; |
| 1736 | int mcse; |
| 1737 | int ntflg; |
| 1738 | char nti[17]; |
| 1739 | char nto[17]; |
| 1740 | int mapflg; |
| 1741 | char mi[PATH_MAX1024]; |
| 1742 | char mo[PATH_MAX1024]; |
| 1743 | } proxstruct, tmpstruct; |
| 1744 | struct comvars *ip, *op; |
| 1745 | |
| 1746 | abrtflag = 0; |
| 1747 | oldintr = signal(SIGINT2, psabort); |
| 1748 | if (flag) { |
| 1749 | if (proxy) |
| 1750 | return; |
| 1751 | ip = &tmpstruct; |
| 1752 | op = &proxstruct; |
| 1753 | proxy++; |
| 1754 | } else { |
| 1755 | if (!proxy) |
| 1756 | return; |
| 1757 | ip = &proxstruct; |
| 1758 | op = &tmpstruct; |
| 1759 | proxy = 0; |
| 1760 | } |
| 1761 | ip->connect = connected; |
| 1762 | connected = op->connect; |
| 1763 | if (hostname) { |
| 1764 | (void)strlcpy(ip->name, hostname, sizeof(ip->name)); |
| 1765 | } else |
| 1766 | ip->name[0] = '\0'; |
| 1767 | hostname = op->name; |
| 1768 | ip->hctl = hisctladdr; |
| 1769 | hisctladdr = op->hctl; |
| 1770 | ip->mctl = myctladdr; |
| 1771 | myctladdr = op->mctl; |
| 1772 | ip->in = cin; |
| 1773 | cin = op->in; |
| 1774 | ip->out = cout; |
| 1775 | cout = op->out; |
| 1776 | ip->tpe = type; |
| 1777 | type = op->tpe; |
| 1778 | ip->curtpe = curtype; |
| 1779 | curtype = op->curtpe; |
| 1780 | ip->cpnd = cpend; |
| 1781 | cpend = op->cpnd; |
| 1782 | ip->sunqe = sunique; |
| 1783 | sunique = op->sunqe; |
| 1784 | ip->runqe = runique; |
| 1785 | runique = op->runqe; |
| 1786 | ip->mcse = mcase; |
| 1787 | mcase = op->mcse; |
| 1788 | ip->ntflg = ntflag; |
| 1789 | ntflag = op->ntflg; |
| 1790 | (void)strlcpy(ip->nti, ntin, sizeof(ip->nti)); |
| 1791 | (void)strlcpy(ntin, op->nti, sizeof ntin); |
| 1792 | (void)strlcpy(ip->nto, ntout, sizeof(ip->nto)); |
| 1793 | (void)strlcpy(ntout, op->nto, sizeof ntout); |
| 1794 | ip->mapflg = mapflag; |
| 1795 | mapflag = op->mapflg; |
| 1796 | (void)strlcpy(ip->mi, mapin, sizeof(ip->mi)); |
| 1797 | (void)strlcpy(mapin, op->mi, sizeof mapin); |
| 1798 | (void)strlcpy(ip->mo, mapout, sizeof(ip->mo)); |
| 1799 | (void)strlcpy(mapout, op->mo, sizeof mapout); |
| 1800 | (void)signal(SIGINT2, oldintr); |
| 1801 | if (abrtflag) { |
| 1802 | abrtflag = 0; |
| 1803 | (*oldintr)(SIGINT2); |
| 1804 | } |
| 1805 | } |
| 1806 | |
| 1807 | void |
| 1808 | abortpt(int signo) |
| 1809 | { |
| 1810 | |
| 1811 | alarmtimer(0); |
| 1812 | putc('\n', ttyout)(!__isthreaded ? __sputc('\n', ttyout) : (putc)('\n', ttyout) ); |
| 1813 | (void)fflush(ttyout); |
| 1814 | ptabflg++; |
| 1815 | mflag = 0; |
| 1816 | abrtflag = 0; |
| 1817 | longjmp(ptabort, 1); |
| 1818 | } |
| 1819 | |
| 1820 | void |
| 1821 | proxtrans(const char *cmd, const char *local, const char *remote) |
| 1822 | { |
| 1823 | volatile sig_t oldintr; |
| 1824 | int prox_type, nfnd; |
| 1825 | volatile int secndflag; |
| 1826 | char * volatile cmd2; |
| 1827 | struct pollfd pfd[1]; |
| 1828 | |
| 1829 | oldintr = NULL((void *)0); |
| 1830 | secndflag = 0; |
| 1831 | if (strcmp(cmd, "RETR")) |
| 1832 | cmd2 = "RETR"; |
| 1833 | else |
| 1834 | cmd2 = runique ? "STOU" : "STOR"; |
| 1835 | if ((prox_type = type) == 0) { |
| 1836 | if (unix_server && unix_proxy) |
| 1837 | prox_type = TYPE_I3; |
| 1838 | else |
| 1839 | prox_type = TYPE_A1; |
| 1840 | } |
| 1841 | if (curtype != prox_type) |
| 1842 | changetype(prox_type, 1); |
| 1843 | if (command("PASV") != COMPLETE2) { |
| 1844 | fputs("proxy server does not support third party transfers.\n", |
| 1845 | ttyout); |
| 1846 | return; |
| 1847 | } |
| 1848 | pswitch(0); |
| 1849 | if (!connected) { |
| 1850 | fputs("No primary connection.\n", ttyout); |
| 1851 | pswitch(1); |
| 1852 | code = -1; |
| 1853 | return; |
| 1854 | } |
| 1855 | if (curtype != prox_type) |
| 1856 | changetype(prox_type, 1); |
| 1857 | if (command("PORT %s", pasv) != COMPLETE2) { |
| 1858 | pswitch(1); |
| 1859 | return; |
| 1860 | } |
| 1861 | if (setjmp(ptabort)) |
| 1862 | goto abort; |
| 1863 | oldintr = signal(SIGINT2, abortpt); |
| 1864 | if (command("%s %s", cmd, remote) != PRELIM1) { |
| 1865 | (void)signal(SIGINT2, oldintr); |
| 1866 | pswitch(1); |
| 1867 | return; |
| 1868 | } |
| 1869 | sleep(2); |
| 1870 | pswitch(1); |
| 1871 | secndflag++; |
| 1872 | if (command("%s %s", cmd2, local) != PRELIM1) |
| 1873 | goto abort; |
| 1874 | ptflag++; |
| 1875 | (void)getreply(0); |
| 1876 | pswitch(0); |
| 1877 | (void)getreply(0); |
| 1878 | (void)signal(SIGINT2, oldintr); |
| 1879 | pswitch(1); |
| 1880 | ptflag = 0; |
| 1881 | fprintf(ttyout, "local: %s remote: %s\n", local, remote); |
| 1882 | return; |
| 1883 | abort: |
| 1884 | (void)signal(SIGINT2, SIG_IGN(void (*)(int))1); |
| 1885 | ptflag = 0; |
| 1886 | if (strcmp(cmd, "RETR") && !proxy) |
| 1887 | pswitch(1); |
| 1888 | else if (!strcmp(cmd, "RETR") && proxy) |
| 1889 | pswitch(0); |
| 1890 | if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */ |
| 1891 | if (command("%s %s", cmd2, local) != PRELIM1) { |
| 1892 | pswitch(0); |
| 1893 | if (cpend) |
| 1894 | abort_remote(NULL((void *)0)); |
| 1895 | } |
| 1896 | pswitch(1); |
| 1897 | if (ptabflg) |
| 1898 | code = -1; |
| 1899 | (void)signal(SIGINT2, oldintr); |
| 1900 | return; |
| 1901 | } |
| 1902 | if (cpend) |
| 1903 | abort_remote(NULL((void *)0)); |
| 1904 | pswitch(!proxy); |
| 1905 | if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */ |
| 1906 | if (command("%s %s", cmd2, local) != PRELIM1) { |
| 1907 | pswitch(0); |
| 1908 | if (cpend) |
| 1909 | abort_remote(NULL((void *)0)); |
| 1910 | pswitch(1); |
| 1911 | if (ptabflg) |
| 1912 | code = -1; |
| 1913 | (void)signal(SIGINT2, oldintr); |
| 1914 | return; |
| 1915 | } |
| 1916 | } |
| 1917 | if (cpend) |
| 1918 | abort_remote(NULL((void *)0)); |
| 1919 | pswitch(!proxy); |
| 1920 | if (cpend) { |
| 1921 | pfd[0].fd = fileno(cin)(!__isthreaded ? ((cin)->_file) : (fileno)(cin)); |
| 1922 | pfd[0].events = POLLIN0x0001; |
| 1923 | if ((nfnd = poll(pfd, 1, 10 * 1000)) <= 0) { |
| 1924 | if (nfnd == -1) |
| 1925 | warn("abort"); |
| 1926 | if (ptabflg) |
| 1927 | code = -1; |
| 1928 | lostpeer(); |
| 1929 | } |
| 1930 | (void)getreply(0); |
| 1931 | (void)getreply(0); |
| 1932 | } |
| 1933 | if (proxy) |
| 1934 | pswitch(0); |
| 1935 | pswitch(1); |
| 1936 | if (ptabflg) |
| 1937 | code = -1; |
| 1938 | (void)signal(SIGINT2, oldintr); |
| 1939 | } |
| 1940 | |
| 1941 | #ifndef SMALL |
| 1942 | void |
| 1943 | reset(int argc, char *argv[]) |
| 1944 | { |
| 1945 | struct pollfd pfd[1]; |
| 1946 | int nfnd = 1; |
| 1947 | |
| 1948 | pfd[0].fd = fileno(cin)(!__isthreaded ? ((cin)->_file) : (fileno)(cin)); |
| 1949 | pfd[0].events = POLLIN0x0001; |
| 1950 | while (nfnd > 0) { |
| 1951 | if ((nfnd = poll(pfd, 1, 0)) == -1) { |
| 1952 | warn("reset"); |
| 1953 | code = -1; |
| 1954 | lostpeer(); |
| 1955 | } else if (nfnd) { |
| 1956 | (void)getreply(0); |
| 1957 | } |
| 1958 | } |
| 1959 | } |
| 1960 | #endif |
| 1961 | |
| 1962 | char * |
| 1963 | gunique(const char *local) |
| 1964 | { |
| 1965 | static char new[PATH_MAX1024]; |
| 1966 | char *cp = strrchr(local, '/'); |
| 1967 | int d, count=0; |
| 1968 | char ext = '1'; |
| 1969 | |
| 1970 | if (cp) |
| 1971 | *cp = '\0'; |
| 1972 | d = access(cp == local ? "/" : cp ? local : ".", W_OK0x02); |
| 1973 | if (cp) |
| 1974 | *cp = '/'; |
| 1975 | if (d == -1) { |
| 1976 | warn("local: %s", local); |
| 1977 | return ((char *) 0); |
| 1978 | } |
| 1979 | (void)strlcpy(new, local, sizeof new); |
| 1980 | cp = new + strlen(new); |
| 1981 | *cp++ = '.'; |
| 1982 | while (!d) { |
| 1983 | if (++count == 100) { |
| 1984 | fputs("runique: can't find unique file name.\n", ttyout); |
| 1985 | return ((char *) 0); |
| 1986 | } |
| 1987 | *cp++ = ext; |
| 1988 | *cp = '\0'; |
| 1989 | if (ext == '9') |
| 1990 | ext = '0'; |
| 1991 | else |
| 1992 | ext++; |
| 1993 | if ((d = access(new, F_OK0)) == -1) |
| 1994 | break; |
| 1995 | if (ext != '0') |
| 1996 | cp--; |
| 1997 | else if (*(cp - 2) == '.') |
| 1998 | *(cp - 1) = '1'; |
| 1999 | else { |
| 2000 | *(cp - 2) = *(cp - 2) + 1; |
| 2001 | cp--; |
| 2002 | } |
| 2003 | } |
| 2004 | return (new); |
| 2005 | } |
| 2006 | |
| 2007 | jmp_buf forceabort; |
| 2008 | |
| 2009 | static void |
| 2010 | abortforce(int signo) |
| 2011 | { |
| 2012 | int save_errno = errno(*__errno()); |
| 2013 | |
| 2014 | #define MSG "Forced abort. The connection will be closed.\n" |
| 2015 | (void) write(fileno(ttyout)(!__isthreaded ? ((ttyout)->_file) : (fileno)(ttyout)), MSG, strlen(MSG)); |
| 2016 | #undef MSG |
| 2017 | |
| 2018 | errno(*__errno()) = save_errno; |
| 2019 | longjmp(forceabort, 1); |
| 2020 | } |
| 2021 | |
| 2022 | void |
| 2023 | abort_remote(FILE *din) |
| 2024 | { |
| 2025 | char buf[BUFSIZ1024]; |
| 2026 | nfds_t nfds; |
| 2027 | int nfnd; |
| 2028 | struct pollfd pfd[2]; |
| 2029 | sig_t oldintr; |
| 2030 | |
| 2031 | if (cout == NULL((void *)0) || setjmp(forceabort)) { |
| 2032 | if (cout) |
| 2033 | fclose(cout); |
| 2034 | warnx("Lost control connection for abort."); |
| 2035 | if (ptabflg) |
| 2036 | code = -1; |
| 2037 | lostpeer(); |
| 2038 | return; |
| 2039 | } |
| 2040 | |
| 2041 | oldintr = signal(SIGINT2, abortforce); |
| 2042 | |
| 2043 | /* |
| 2044 | * send IAC in urgent mode instead of DM because 4.3BSD places oob mark |
| 2045 | * after urgent byte rather than before as is protocol now |
| 2046 | */ |
| 2047 | snprintf(buf, sizeof buf, "%c%c%c", IAC255, IP244, IAC255); |
| 2048 | if (send(fileno(cout)(!__isthreaded ? ((cout)->_file) : (fileno)(cout)), buf, 3, MSG_OOB0x1) != 3) |
| 2049 | warn("abort"); |
| 2050 | fprintf(cout, "%cABOR\r\n", DM242); |
| 2051 | (void)fflush(cout); |
| 2052 | pfd[0].fd = fileno(cin)(!__isthreaded ? ((cin)->_file) : (fileno)(cin)); |
| 2053 | pfd[0].events = POLLIN0x0001; |
| 2054 | nfds = 1; |
| 2055 | if (din) { |
| 2056 | pfd[1].fd = fileno(din)(!__isthreaded ? ((din)->_file) : (fileno)(din)); |
| 2057 | pfd[1].events = POLLIN0x0001; |
| 2058 | nfds++; |
| 2059 | } |
| 2060 | if ((nfnd = poll(pfd, nfds, 10 * 1000)) <= 0) { |
| 2061 | if (nfnd == -1) |
| 2062 | warn("abort"); |
| 2063 | if (ptabflg) |
| 2064 | code = -1; |
| 2065 | lostpeer(); |
| 2066 | } |
| 2067 | if (din && (pfd[1].revents & POLLIN0x0001)) { |
| 2068 | while (read(fileno(din)(!__isthreaded ? ((din)->_file) : (fileno)(din)), buf, BUFSIZ1024) > 0) |
| 2069 | /* LOOP */; |
| 2070 | } |
| 2071 | if (getreply(0) == ERROR5 && code == 552) { |
| 2072 | /* 552 needed for nic style abort */ |
| 2073 | (void)getreply(0); |
| 2074 | } |
| 2075 | (void)getreply(0); |
| 2076 | (void)signal(SIGINT2, oldintr); |
| 2077 | } |