2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2000-2014 Dag-Erling Smørgrav
5 * Copyright (c) 2013 Michael Gmelin <freebsd@grem.de>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer
13 * in this position and unchanged.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/socket.h>
54 #define MINBUFSIZE 16384
58 static int A_flag; /* -A: do not follow 302 redirects */
59 static int a_flag; /* -a: auto retry */
60 static off_t B_size; /* -B: buffer size */
61 static int b_flag; /*! -b: workaround TCP bug */
62 static char *c_dirname; /* -c: remote directory */
63 static int d_flag; /* -d: direct connection */
64 static int F_flag; /* -F: restart without checking mtime */
65 static char *f_filename; /* -f: file to fetch */
66 static char *h_hostname; /* -h: host to fetch from */
67 static int i_flag; /* -i: specify file for mtime comparison */
68 static char *i_filename; /* name of input file */
69 static int l_flag; /* -l: link rather than copy file: URLs */
70 static int m_flag; /* -[Mm]: mirror mode */
71 static char *N_filename; /* -N: netrc file name */
72 static int n_flag; /* -n: do not preserve modification time */
73 static int o_flag; /* -o: specify output file */
74 static int o_directory; /* output file is a directory */
75 static char *o_filename; /* name of output file */
76 static int o_stdout; /* output file is stdout */
77 static int once_flag; /* -1: stop at first successful file */
78 static int p_flag; /* -[Pp]: use passive FTP */
79 static int R_flag; /* -R: don't delete partial files */
80 static int r_flag; /* -r: restart previous transfer */
81 static off_t S_size; /* -S: require size to match */
82 static int s_flag; /* -s: show size, don't fetch */
83 static long T_secs; /* -T: transfer timeout in seconds */
84 static int t_flag; /*! -t: workaround TCP bug */
85 static int U_flag; /* -U: do not use high ports */
86 static int v_level = 1; /* -v: verbosity level */
87 static int v_tty; /* stdout is a tty */
88 static pid_t pgrp; /* our process group */
89 static long w_secs; /* -w: retry delay */
90 static int family = PF_UNSPEC; /* -[46]: address family to use */
92 static int sigalrm; /* SIGALRM received */
93 static int siginfo; /* SIGINFO received */
94 static int sigint; /* SIGINT received */
96 static long ftp_timeout = TIMEOUT; /* default timeout for FTP transfers */
97 static long http_timeout = TIMEOUT;/* default timeout for HTTP transfers */
98 static char *buf; /* transfer buffer */
103 OPTION_NO_FTP_PASSIVE_MODE,
105 OPTION_HTTP_USER_AGENT,
107 OPTION_SSL_CA_CERT_FILE,
108 OPTION_SSL_CA_CERT_PATH,
109 OPTION_SSL_CLIENT_CERT_FILE,
110 OPTION_SSL_CLIENT_KEY_FILE,
114 OPTION_SSL_NO_VERIFY_HOSTNAME,
115 OPTION_SSL_NO_VERIFY_PEER
119 static struct option longopts[] =
121 /* mapping to single character argument */
122 { "one-file", no_argument, NULL, '1' },
123 { "ipv4-only", no_argument, NULL, '4' },
124 { "ipv6-only", no_argument, NULL, '6' },
125 { "no-redirect", no_argument, NULL, 'A' },
126 { "retry", no_argument, NULL, 'a' },
127 { "buffer-size", required_argument, NULL, 'B' },
128 /* -c not mapped, since it's deprecated */
129 { "direct", no_argument, NULL, 'd' },
130 { "force-restart", no_argument, NULL, 'F' },
131 /* -f not mapped, since it's deprecated */
132 /* -h not mapped, since it's deprecated */
133 { "if-modified-since", required_argument, NULL, 'i' },
134 { "symlink", no_argument, NULL, 'l' },
135 /* -M not mapped since it's the same as -m */
136 { "mirror", no_argument, NULL, 'm' },
137 { "netrc", required_argument, NULL, 'N' },
138 { "no-mtime", no_argument, NULL, 'n' },
139 { "output", required_argument, NULL, 'o' },
140 /* -P not mapped since it's the same as -p */
141 { "passive", no_argument, NULL, 'p' },
142 { "quiet", no_argument, NULL, 'q' },
143 { "keep-output", no_argument, NULL, 'R' },
144 { "restart", no_argument, NULL, 'r' },
145 { "require-size", required_argument, NULL, 'S' },
146 { "print-size", no_argument, NULL, 's' },
147 { "timeout", required_argument, NULL, 'T' },
148 { "passive-portrange-default", no_argument, NULL, 'T' },
149 { "verbose", no_argument, NULL, 'v' },
150 { "retry-delay", required_argument, NULL, 'w' },
152 /* options without a single character equivalent */
153 { "bind-address", required_argument, NULL, OPTION_BIND_ADDRESS },
154 { "no-passive", no_argument, NULL, OPTION_NO_FTP_PASSIVE_MODE },
155 { "referer", required_argument, NULL, OPTION_HTTP_REFERER },
156 { "user-agent", required_argument, NULL, OPTION_HTTP_USER_AGENT },
157 { "no-proxy", required_argument, NULL, OPTION_NO_PROXY },
158 { "ca-cert", required_argument, NULL, OPTION_SSL_CA_CERT_FILE },
159 { "ca-path", required_argument, NULL, OPTION_SSL_CA_CERT_PATH },
160 { "cert", required_argument, NULL, OPTION_SSL_CLIENT_CERT_FILE },
161 { "key", required_argument, NULL, OPTION_SSL_CLIENT_KEY_FILE },
162 { "crl", required_argument, NULL, OPTION_SSL_CRL_FILE },
163 { "no-sslv3", no_argument, NULL, OPTION_SSL_NO_SSL3 },
164 { "no-tlsv1", no_argument, NULL, OPTION_SSL_NO_TLS1 },
165 { "no-verify-hostname", no_argument, NULL, OPTION_SSL_NO_VERIFY_HOSTNAME },
166 { "no-verify-peer", no_argument, NULL, OPTION_SSL_NO_VERIFY_PEER },
192 struct timeval start; /* start of transfer */
193 struct timeval last; /* time of last update */
194 struct timeval last2; /* time of previous last update */
195 off_t size; /* size of file per HTTP hdr */
196 off_t offset; /* starting offset in file */
197 off_t rcvd; /* bytes already received */
198 off_t lastrcvd; /* bytes received since last update */
202 * Compute and display ETA
205 stat_eta(struct xferstat *xs)
209 off_t received, expected;
211 elapsed = xs->last.tv_sec - xs->start.tv_sec;
212 received = xs->rcvd - xs->offset;
213 expected = xs->size - xs->rcvd;
214 eta = (long)((double)elapsed * expected / received);
216 snprintf(str, sizeof str, "%02ldh%02ldm",
217 eta / 3600, (eta % 3600) / 60);
219 snprintf(str, sizeof str, "%02ldm%02lds",
222 snprintf(str, sizeof str, "%02ldm%02lds",
223 elapsed / 60, elapsed % 60);
228 * Format a number as "xxxx YB" where Y is ' ', 'k', 'M'...
230 static const char *prefixes = " kMGTP";
232 stat_bytes(off_t bytes)
235 const char *prefix = prefixes;
237 while (bytes > 9999 && prefix[1] != '\0') {
241 snprintf(str, sizeof str, "%4jd %cB", (intmax_t)bytes, *prefix);
246 * Compute and display transfer rate
249 stat_bps(struct xferstat *xs)
254 delta = (xs->last.tv_sec + (xs->last.tv_usec / 1.e6))
255 - (xs->last2.tv_sec + (xs->last2.tv_usec / 1.e6));
258 snprintf(str, sizeof str, "?? Bps");
260 bps = (xs->rcvd - xs->lastrcvd) / delta;
261 snprintf(str, sizeof str, "%sps", stat_bytes((off_t)bps));
267 * Update the stats display
270 stat_display(struct xferstat *xs, int force)
275 /* check if we're the foreground process */
276 if (ioctl(STDERR_FILENO, TIOCGPGRP, &ctty_pgrp) == -1 ||
277 (pid_t)ctty_pgrp != pgrp)
280 gettimeofday(&now, NULL);
281 if (!force && now.tv_sec <= xs->last.tv_sec)
283 xs->last2 = xs->last;
286 fprintf(stderr, "\r%-46.46s", xs->name);
288 setproctitle("%s [%s]", xs->name, stat_bytes(xs->rcvd));
289 fprintf(stderr, " %s", stat_bytes(xs->rcvd));
291 setproctitle("%s [%d%% of %s]", xs->name,
292 (int)((100.0 * xs->rcvd) / xs->size),
293 stat_bytes(xs->size));
294 fprintf(stderr, "%3d%% of %s",
295 (int)((100.0 * xs->rcvd) / xs->size),
296 stat_bytes(xs->size));
299 xs->lastrcvd = xs->offset;
300 xs->last2 = xs->start;
302 fprintf(stderr, " %s", stat_bps(xs));
303 if ((xs->size > 0 && xs->rcvd > 0 &&
304 xs->last.tv_sec >= xs->start.tv_sec + 3) ||
306 fprintf(stderr, " %s", stat_eta(xs));
307 xs->lastrcvd = xs->rcvd;
311 * Initialize the transfer statistics
314 stat_start(struct xferstat *xs, const char *name, off_t size, off_t offset)
316 snprintf(xs->name, sizeof xs->name, "%s", name);
317 gettimeofday(&xs->start, NULL);
318 xs->last.tv_sec = xs->last.tv_usec = 0;
322 xs->lastrcvd = offset;
323 if (v_tty && v_level > 0)
325 else if (v_level > 0)
326 fprintf(stderr, "%-46s", xs->name);
330 * Update the transfer statistics
333 stat_update(struct xferstat *xs, off_t rcvd)
336 if (v_tty && v_level > 0)
341 * Finalize the transfer statistics
344 stat_end(struct xferstat *xs)
346 gettimeofday(&xs->last, NULL);
347 if (v_tty && v_level > 0) {
350 } else if (v_level > 0) {
351 fprintf(stderr, " %s %s\n",
352 stat_bytes(xs->size), stat_bps(xs));
357 * Ask the user for authentication details
360 query_auth(struct url *URL)
363 tcflag_t saved_flags;
366 fprintf(stderr, "Authentication required for <%s://%s:%d/>!\n",
367 URL->scheme, URL->host, URL->port);
369 fprintf(stderr, "Login: ");
370 if (fgets(URL->user, sizeof URL->user, stdin) == NULL)
372 for (i = strlen(URL->user); i >= 0; --i)
373 if (URL->user[i] == '\r' || URL->user[i] == '\n')
376 fprintf(stderr, "Password: ");
377 if (tcgetattr(STDIN_FILENO, &tios) == 0) {
378 saved_flags = tios.c_lflag;
379 tios.c_lflag &= ~ECHO;
380 tios.c_lflag |= ECHONL|ICANON;
381 tcsetattr(STDIN_FILENO, TCSAFLUSH|TCSASOFT, &tios);
382 nopwd = (fgets(URL->pwd, sizeof URL->pwd, stdin) == NULL);
383 tios.c_lflag = saved_flags;
384 tcsetattr(STDIN_FILENO, TCSANOW|TCSASOFT, &tios);
386 nopwd = (fgets(URL->pwd, sizeof URL->pwd, stdin) == NULL);
390 for (i = strlen(URL->pwd); i >= 0; --i)
391 if (URL->pwd[i] == '\r' || URL->pwd[i] == '\n')
401 fetch(char *URL, const char *path)
408 size_t size, readcnt, wr;
424 /* set verbosity level */
436 if ((url = fetchParseURL(URL)) == NULL) {
437 warnx("%s: parse error", URL);
441 /* if no scheme was specified, take a guess */
444 strcpy(url->scheme, SCHEME_FILE);
445 else if (strncasecmp(url->host, "ftp.", 4) == 0)
446 strcpy(url->scheme, SCHEME_FTP);
447 else if (strncasecmp(url->host, "www.", 4) == 0)
448 strcpy(url->scheme, SCHEME_HTTP);
461 /* FTP specific flags */
462 if (strcmp(url->scheme, SCHEME_FTP) == 0) {
469 timeout = T_secs ? T_secs : ftp_timeout;
472 /* HTTP specific flags */
473 if (strcmp(url->scheme, SCHEME_HTTP) == 0 ||
474 strcmp(url->scheme, SCHEME_HTTPS) == 0) {
479 timeout = T_secs ? T_secs : http_timeout;
481 if (stat(i_filename, &sb)) {
482 warn("%s: stat()", i_filename);
485 url->ims_time = sb.st_mtime;
490 /* set the protocol timeout. */
491 fetchTimeout = timeout;
493 /* just print size */
497 r = fetchStat(url, &us, flags);
500 if (sigalrm || sigint)
503 warnx("%s", fetchLastErrString);
509 printf("%jd\n", (intmax_t)us.size);
514 * If the -r flag was specified, we have to compare the local
515 * and remote files, so we should really do a fetchStat()
516 * first, but I know of at least one HTTP server that only
517 * sends the content size in response to GET requests, and
518 * leaves it out of replies to HEAD requests. Also, in the
519 * (frequent) case that the local and remote files match but
520 * the local file is truncated, we have sufficient information
521 * before the compare to issue a correct request. Therefore,
522 * we always issue a GET request as if we were sure the local
523 * file was a truncated copy of the remote file; we can drop
524 * the connection later if we change our minds.
529 if (r == 0 && r_flag && S_ISREG(sb.st_mode)) {
530 url->offset = sb.st_size;
531 } else if (r == -1 || !S_ISREG(sb.st_mode)) {
533 * Whatever value sb.st_size has now is either
534 * wrong (if stat(2) failed) or irrelevant (if the
535 * path does not refer to a regular file)
539 if (r == -1 && errno != ENOENT) {
540 warnx("%s: stat()", path);
545 /* start the transfer */
548 f = fetchXGet(url, &us, flags);
551 if (sigalrm || sigint)
554 warnx("%s: %s", URL, fetchLastErrString);
555 if (i_flag && (strcmp(url->scheme, SCHEME_HTTP) == 0 ||
556 strcmp(url->scheme, SCHEME_HTTPS) == 0) &&
557 fetchLastErrCode == FETCH_OK &&
558 strcmp(fetchLastErrString, "Not Modified") == 0) {
559 /* HTTP Not Modified Response, return OK. */
568 /* check that size is as expected */
571 warnx("%s: size unknown", URL);
572 } else if (us.size != S_size) {
573 warnx("%s: size mismatch: expected %jd, actual %jd",
574 URL, (intmax_t)S_size, (intmax_t)us.size);
579 /* symlink instead of copy */
580 if (l_flag && strcmp(url->scheme, "file") == 0 && !o_stdout) {
581 if (symlink(url->doc, path) == -1) {
582 warn("%s: symlink()", path);
588 if (us.size == -1 && !o_stdout && v_level > 0)
589 warnx("%s: size of remote file is not known", URL);
591 if (sb.st_size != -1)
592 fprintf(stderr, "local size / mtime: %jd / %ld\n",
593 (intmax_t)sb.st_size, (long)sb.st_mtime);
595 fprintf(stderr, "remote size / mtime: %jd / %ld\n",
596 (intmax_t)us.size, (long)us.mtime);
599 /* open output file */
601 /* output to stdout */
603 } else if (r_flag && sb.st_size != -1) {
604 /* resume mode, local file exists */
605 if (!F_flag && us.mtime && sb.st_mtime != us.mtime) {
606 /* no match! have to refetch */
608 /* if precious, warn the user and give up */
610 warnx("%s: local modification time "
611 "does not match remote", path);
614 } else if (url->offset > sb.st_size) {
615 /* gap between what we asked for and what we got */
616 warnx("%s: gap in resume mode", URL);
619 /* picked up again later */
620 } else if (us.size != -1) {
621 if (us.size == sb.st_size)
624 if (sb.st_size > us.size) {
625 /* local file too long! */
626 warnx("%s: local file (%jd bytes) is longer "
627 "than remote file (%jd bytes)", path,
628 (intmax_t)sb.st_size, (intmax_t)us.size);
631 /* we got it, open local file */
632 if ((of = fopen(path, "r+")) == NULL) {
633 warn("%s: fopen()", path);
636 /* check that it didn't move under our feet */
637 if (fstat(fileno(of), &nsb) == -1) {
639 warn("%s: fstat()", path);
642 if (nsb.st_dev != sb.st_dev ||
643 nsb.st_ino != sb.st_ino ||
644 nsb.st_size != sb.st_size) {
645 warnx("%s: file has changed", URL);
649 /* picked up again later */
652 /* seek to where we left off */
653 if (of != NULL && fseeko(of, url->offset, SEEK_SET) != 0) {
654 warn("%s: fseeko()", path);
657 /* picked up again later */
659 } else if (m_flag && sb.st_size != -1) {
660 /* mirror mode, local file exists */
661 if (sb.st_size == us.size && sb.st_mtime == us.mtime)
667 * We don't yet have an output file; either this is a
668 * vanilla run with no special flags, or the local and
669 * remote files didn't match.
672 if (url->offset > 0) {
674 * We tried to restart a transfer, but for
675 * some reason gave up - so we have to restart
676 * from scratch if we want the whole file
679 if ((f = fetchXGet(url, &us, flags)) == NULL) {
680 warnx("%s: %s", URL, fetchLastErrString);
687 /* construct a temp file name */
688 if (sb.st_size != -1 && S_ISREG(sb.st_mode)) {
689 if ((slash = strrchr(path, '/')) == NULL)
693 asprintf(&tmppath, "%.*s.fetch.XXXXXX.%s",
694 (int)(slash - path), path, slash);
695 if (tmppath != NULL) {
696 if (mkstemps(tmppath, strlen(slash) + 1) == -1) {
697 warn("%s: mkstemps()", path);
700 of = fopen(tmppath, "w");
701 chown(tmppath, sb.st_uid, sb.st_gid);
702 chmod(tmppath, sb.st_mode & ALLPERMS);
706 of = fopen(path, "w");
708 warn("%s: open()", path);
714 /* start the counter */
715 stat_start(&xs, path, us.size, count);
717 sigalrm = siginfo = sigint = 0;
719 /* suck in the data */
720 setvbuf(f, NULL, _IOFBF, B_size);
721 signal(SIGINFO, sig_handler);
723 if (us.size != -1 && us.size - count < B_size &&
724 us.size - count >= 0)
725 size = us.size - count;
736 if ((readcnt = fread(buf, 1, size, f)) < size) {
737 if (ferror(f) && errno == EINTR && !sigint)
739 else if (readcnt == 0)
743 stat_update(&xs, count += readcnt);
744 for (ptr = buf; readcnt > 0; ptr += wr, readcnt -= wr)
745 if ((wr = fwrite(ptr, 1, readcnt, of)) < readcnt) {
746 if (ferror(of) && errno == EINTR && !sigint)
755 sigalrm = ferror(f) && errno == ETIMEDOUT;
756 signal(SIGINFO, SIG_DFL);
761 * If the transfer timed out or was interrupted, we still want to
762 * set the mtime in case the file is not removed (-r or -R) and
763 * the user later restarts the transfer.
766 /* set mtime of local file */
767 if (!n_flag && us.mtime && !o_stdout && of != NULL &&
768 (stat(path, &sb) != -1) && sb.st_mode & S_IFREG) {
769 struct timeval tv[2];
772 tv[0].tv_sec = (long)(us.atime ? us.atime : us.mtime);
773 tv[1].tv_sec = (long)us.mtime;
774 tv[0].tv_usec = tv[1].tv_usec = 0;
775 if (utimes(tmppath ? tmppath : path, tv))
776 warn("%s: utimes()", tmppath ? tmppath : path);
779 /* timed out or interrupted? */
781 warnx("transfer timed out");
783 warnx("transfer interrupted");
787 /* timeout / interrupt before connection completley established? */
792 /* check the status of our files */
797 if (ferror(f) || ferror(of))
801 /* did the transfer complete normally? */
802 if (us.size != -1 && count < us.size) {
803 warnx("%s appears to be truncated: %jd/%jd bytes",
804 path, (intmax_t)count, (intmax_t)us.size);
809 * If the transfer timed out and we didn't know how much to
810 * expect, assume the worst (i.e. we didn't get all of it)
812 if (sigalrm && us.size == -1) {
813 warnx("%s may be truncated", path);
819 if (tmppath != NULL && rename(tmppath, path) == -1) {
820 warn("%s: rename()", path);
825 if (of && of != stdout && !R_flag && !r_flag)
826 if (stat(path, &sb) != -1 && (sb.st_mode & S_IFREG))
827 unlink(tmppath ? tmppath : path);
828 if (R_flag && tmppath != NULL && sb.st_size == -1)
829 rename(tmppath, path); /* ignore errors here */
836 if (of && of != stdout)
848 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
849 "usage: fetch [-146AadFlMmnPpqRrsUv] [-B bytes] [--bind-address=host]",
850 " [--ca-cert=file] [--ca-path=dir] [--cert=file] [--crl=file]",
851 " [-i file] [--key=file] [-N file] [--no-passive] [--no-proxy=list]",
852 " [--no-sslv3] [--no-tlsv1] [--no-verify-hostname] [--no-verify-peer]",
853 " [-o file] [--referer=URL] [-S bytes] [-T seconds]",
854 " [--user-agent=agent-string] [-w seconds] URL ...",
855 " fetch [-146AadFlMmnPpqRrsUv] [-B bytes] [--bind-address=host]",
856 " [--ca-cert=file] [--ca-path=dir] [--cert=file] [--crl=file]",
857 " [-i file] [--key=file] [-N file] [--no-passive] [--no-proxy=list]",
858 " [--no-sslv3] [--no-tlsv1] [--no-verify-hostname] [--no-verify-peer]",
859 " [-o file] [--referer=URL] [-S bytes] [-T seconds]",
860 " [--user-agent=agent-string] [-w seconds] -h host -f file [-c dir]");
868 main(int argc, char *argv[])
877 while ((c = getopt_long(argc, argv,
878 "146AaB:bc:dFf:Hh:i:lMmN:nPpo:qRrS:sT:tUvw:",
879 longopts, NULL)) != -1)
897 B_size = (off_t)strtol(optarg, &end, 10);
898 if (*optarg == '\0' || *end != '\0')
899 errx(1, "invalid buffer size (%s)", optarg);
902 warnx("warning: the -b option is deprecated");
918 warnx("the -H option is now implicit, "
919 "use -U to disable");
938 errx(1, "the -m and -r flags "
939 "are mutually exclusive");
960 errx(1, "the -m and -r flags "
961 "are mutually exclusive");
965 S_size = (off_t)strtol(optarg, &end, 10);
966 if (*optarg == '\0' || *end != '\0')
967 errx(1, "invalid size (%s)", optarg);
973 T_secs = strtol(optarg, &end, 10);
974 if (*optarg == '\0' || *end != '\0')
975 errx(1, "invalid timeout (%s)", optarg);
979 warnx("warning: the -t option is deprecated");
989 w_secs = strtol(optarg, &end, 10);
990 if (*optarg == '\0' || *end != '\0')
991 errx(1, "invalid delay (%s)", optarg);
993 case OPTION_BIND_ADDRESS:
994 setenv("FETCH_BIND_ADDRESS", optarg, 1);
996 case OPTION_NO_FTP_PASSIVE_MODE:
997 setenv("FTP_PASSIVE_MODE", "no", 1);
999 case OPTION_HTTP_REFERER:
1000 setenv("HTTP_REFERER", optarg, 1);
1002 case OPTION_HTTP_USER_AGENT:
1003 setenv("HTTP_USER_AGENT", optarg, 1);
1005 case OPTION_NO_PROXY:
1006 setenv("NO_PROXY", optarg, 1);
1008 case OPTION_SSL_CA_CERT_FILE:
1009 setenv("SSL_CA_CERT_FILE", optarg, 1);
1011 case OPTION_SSL_CA_CERT_PATH:
1012 setenv("SSL_CA_CERT_PATH", optarg, 1);
1014 case OPTION_SSL_CLIENT_CERT_FILE:
1015 setenv("SSL_CLIENT_CERT_FILE", optarg, 1);
1017 case OPTION_SSL_CLIENT_KEY_FILE:
1018 setenv("SSL_CLIENT_KEY_FILE", optarg, 1);
1020 case OPTION_SSL_CRL_FILE:
1021 setenv("SSL_CLIENT_CRL_FILE", optarg, 1);
1023 case OPTION_SSL_NO_SSL3:
1024 setenv("SSL_NO_SSL3", "", 1);
1026 case OPTION_SSL_NO_TLS1:
1027 setenv("SSL_NO_TLS1", "", 1);
1029 case OPTION_SSL_NO_VERIFY_HOSTNAME:
1030 setenv("SSL_NO_VERIFY_HOSTNAME", "", 1);
1032 case OPTION_SSL_NO_VERIFY_PEER:
1033 setenv("SSL_NO_VERIFY_PEER", "", 1);
1043 if (h_hostname || f_filename || c_dirname) {
1044 if (!h_hostname || !f_filename || argc) {
1048 /* XXX this is a hack. */
1049 if (strcspn(h_hostname, "@:/") != strlen(h_hostname))
1050 errx(1, "invalid hostname");
1051 if (asprintf(argv, "ftp://%s/%s/%s", h_hostname,
1052 c_dirname ? c_dirname : "", f_filename) == -1)
1053 errx(1, "%s", strerror(ENOMEM));
1062 /* allocate buffer */
1063 if (B_size < MINBUFSIZE)
1064 B_size = MINBUFSIZE;
1065 if ((buf = malloc(B_size)) == NULL)
1066 errx(1, "%s", strerror(ENOMEM));
1069 if ((s = getenv("FTP_TIMEOUT")) != NULL) {
1070 ftp_timeout = strtol(s, &end, 10);
1071 if (*s == '\0' || *end != '\0' || ftp_timeout < 0) {
1072 warnx("FTP_TIMEOUT (%s) is not a positive integer", s);
1076 if ((s = getenv("HTTP_TIMEOUT")) != NULL) {
1077 http_timeout = strtol(s, &end, 10);
1078 if (*s == '\0' || *end != '\0' || http_timeout < 0) {
1079 warnx("HTTP_TIMEOUT (%s) is not a positive integer", s);
1084 /* signal handling */
1086 sa.sa_handler = sig_handler;
1087 sigemptyset(&sa.sa_mask);
1088 sigaction(SIGALRM, &sa, NULL);
1089 sa.sa_flags = SA_RESETHAND;
1090 sigaction(SIGINT, &sa, NULL);
1091 fetchRestartCalls = 0;
1095 if (strcmp(o_filename, "-") == 0) {
1097 } else if (stat(o_filename, &sb) == -1) {
1098 if (errno == ENOENT) {
1100 errx(1, "%s is not a directory",
1103 err(1, "%s", o_filename);
1106 if (sb.st_mode & S_IFDIR)
1111 /* check if output is to a tty (for progress report) */
1112 v_tty = isatty(STDERR_FILENO);
1118 /* authentication */
1120 fetchAuthMethod = query_auth;
1121 if (N_filename != NULL)
1122 if (setenv("NETRC", N_filename, 1) == -1)
1123 err(1, "setenv: cannot set NETRC=%s", N_filename);
1126 if ((p = strrchr(*argv, '/')) == NULL)
1134 fetchLastErrCode = 0;
1138 e = fetch(*argv, "-");
1139 } else if (o_directory) {
1140 asprintf(&q, "%s/%s", o_filename, p);
1141 e = fetch(*argv, q);
1144 e = fetch(*argv, o_filename);
1147 e = fetch(*argv, p);
1151 kill(getpid(), SIGINT);
1153 if (e == 0 && once_flag)
1158 if ((fetchLastErrCode
1159 && fetchLastErrCode != FETCH_UNAVAIL
1160 && fetchLastErrCode != FETCH_MOVED
1161 && fetchLastErrCode != FETCH_URL
1162 && fetchLastErrCode != FETCH_RESOLV
1163 && fetchLastErrCode != FETCH_UNKNOWN)) {
1164 if (w_secs && v_level)
1165 fprintf(stderr, "Waiting %ld seconds "
1166 "before retrying\n", w_secs);