Annotation of src/usr.bin/ftp/fetch.c, Revision 1.208
1.207 kn 1: /* $OpenBSD: fetch.c,v 1.206 2021/11/06 14:27:45 kn Exp $ */
1.15 millert 2: /* $NetBSD: fetch.c,v 1.14 1997/08/18 10:20:20 lukem Exp $ */
1.1 millert 3:
4: /*-
5: * Copyright (c) 1997 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Jason Thorpe and Luke Mewburn.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.15 millert 23: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.1 millert 25: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30: * POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: /*
34: * FTP User Program -- Command line file retrieval
35: */
36:
37: #include <sys/types.h>
38: #include <sys/socket.h>
1.22 deraadt 39: #include <sys/stat.h>
1.1 millert 40:
41: #include <netinet/in.h>
42:
43: #include <arpa/ftp.h>
44: #include <arpa/inet.h>
45:
46: #include <ctype.h>
47: #include <err.h>
1.17 millert 48: #include <libgen.h>
1.1 millert 49: #include <netdb.h>
50: #include <fcntl.h>
1.3 millert 51: #include <signal.h>
1.175 deraadt 52: #include <vis.h>
1.1 millert 53: #include <stdio.h>
1.61 deraadt 54: #include <stdarg.h>
1.19 deraadt 55: #include <errno.h>
1.1 millert 56: #include <stdlib.h>
57: #include <string.h>
58: #include <unistd.h>
1.73 drahn 59: #include <resolv.h>
1.200 robert 60: #include <utime.h>
1.1 millert 61:
1.154 deraadt 62: #ifndef NOSSL
1.134 jsing 63: #include <tls.h>
1.154 deraadt 64: #else /* !NOSSL */
1.134 jsing 65: struct tls;
1.154 deraadt 66: #endif /* !NOSSL */
1.61 deraadt 67:
1.1 millert 68: #include "ftp_var.h"
1.86 martynas 69: #include "cmds.h"
1.1 millert 70:
1.186 jca 71: static int file_get(const char *, const char *);
1.157 deraadt 72: static int url_get(const char *, const char *, const char *, int);
1.178 jca 73: static int save_chunked(FILE *, struct tls *, int , char *, size_t);
1.177 jca 74: static void aborthttp(int);
75: static char hextochar(const char *);
76: static char *urldecode(const char *);
77: static char *recode_credentials(const char *_userinfo);
1.189 jca 78: static void ftp_close(FILE **, struct tls **, int *);
1.177 jca 79: static const char *sockerror(struct tls *);
1.184 jca 80: #ifdef SMALL
81: #define ftp_printf(fp, ...) fprintf(fp, __VA_ARGS__)
82: #else
83: static int ftp_printf(FILE *, const char *, ...);
84: #endif /* SMALL */
1.158 jca 85: #ifndef NOSSL
1.177 jca 86: static int proxy_connect(int, char *, char *);
87: static int stdio_tls_write_wrapper(void *, const char *, int);
88: static int stdio_tls_read_wrapper(void *, char *, int);
1.158 jca 89: #endif /* !NOSSL */
1.14 millert 90:
1.1 millert 91: #define FTP_URL "ftp://" /* ftp URL prefix */
92: #define HTTP_URL "http://" /* http URL prefix */
1.61 deraadt 93: #define HTTPS_URL "https://" /* https URL prefix */
1.22 deraadt 94: #define FILE_URL "file:" /* file URL prefix */
1.6 millert 95: #define FTP_PROXY "ftp_proxy" /* env var with ftp proxy location */
1.1 millert 96: #define HTTP_PROXY "http_proxy" /* env var with http proxy location */
97:
98: #define EMPTYSTRING(x) ((x) == NULL || (*(x) == '\0'))
99:
1.110 guenther 100: static const char at_encoding_warning[] =
1.53 deraadt 101: "Extra `@' characters in usernames and passwords should be encoded as %%40";
1.37 heko 102:
1.177 jca 103: static jmp_buf httpabort;
1.1 millert 104:
1.54 fgsch 105: static int redirect_loop;
1.171 jca 106: static int retried;
1.54 fgsch 107:
1.1 millert 108: /*
1.206 kn 109: * Determine whether the character needs encoding, per RFC2396.
1.95 martynas 110: */
111: static int
1.206 kn 112: to_encode(const char *c0)
1.95 martynas 113: {
1.206 kn 114: /* 2.4.3. Excluded US-ASCII Characters */
115: const char *excluded_chars =
116: " " /* space */
117: "<>#\"" /* delims (modulo "%", see below) */
118: "{}|\\^[]`" /* unwise */
119: ;
1.138 jca 120: const unsigned char *c = (const unsigned char *)c0;
1.95 martynas 121:
122: /*
123: * No corresponding graphic US-ASCII.
124: * Control characters and octets not used in US-ASCII.
125: */
126: return (iscntrl(*c) || !isascii(*c) ||
127:
128: /*
1.206 kn 129: * '%' is also reserved, if is not followed by two
1.95 martynas 130: * hexadecimal digits.
131: */
1.206 kn 132: strchr(excluded_chars, *c) != NULL ||
1.204 deraadt 133: (*c == '%' && (!isxdigit(c[1]) || !isxdigit(c[2]))));
1.95 martynas 134: }
135:
136: /*
1.206 kn 137: * Encode given URL, per RFC2396.
1.95 martynas 138: * Allocate and return string to the caller.
139: */
140: static char *
141: url_encode(const char *path)
142: {
143: size_t i, length, new_length;
144: char *epath, *epathp;
145:
146: length = new_length = strlen(path);
147:
148: /*
149: * First pass:
1.206 kn 150: * Count characters to encode and determine length of the final URL.
1.95 martynas 151: */
152: for (i = 0; i < length; i++)
1.206 kn 153: if (to_encode(path + i))
1.95 martynas 154: new_length += 2;
155:
156: epath = epathp = malloc(new_length + 1); /* One more for '\0'. */
157: if (epath == NULL)
1.102 halex 158: err(1, "Can't allocate memory for URL encoding");
1.95 martynas 159:
160: /*
161: * Second pass:
162: * Encode, and copy final URL.
163: */
164: for (i = 0; i < length; i++)
1.206 kn 165: if (to_encode(path + i)) {
1.138 jca 166: snprintf(epathp, 4, "%%" "%02x",
167: (unsigned char)path[i]);
1.95 martynas 168: epathp += 3;
169: } else
170: *(epathp++) = path[i];
171:
172: *epathp = '\0';
173: return (epath);
174: }
175:
1.155 deraadt 176: /* ARGSUSED */
177: static void
178: tooslow(int signo)
179: {
180: dprintf(STDERR_FILENO, "%s: connect taking too long\n", __progname);
181: _exit(2);
182: }
183:
1.95 martynas 184: /*
1.186 jca 185: * Copy a local file (used by the OpenBSD installer).
186: * Returns -1 on failure, 0 on success
187: */
188: static int
189: file_get(const char *path, const char *outfile)
190: {
191: struct stat st;
1.195 jca 192: int fd, out = -1, rval = -1, save_errno;
1.186 jca 193: volatile sig_t oldintr, oldinti;
194: const char *savefile;
1.198 naddy 195: char *buf = NULL, *cp, *pathbuf = NULL;
1.186 jca 196: const size_t buflen = 128 * 1024;
197: off_t hashbytes;
198: ssize_t len, wlen;
199:
200: direction = "received";
201:
202: fd = open(path, O_RDONLY);
203: if (fd == -1) {
204: warn("Can't open file %s", path);
205: return -1;
206: }
207:
208: if (fstat(fd, &st) == -1)
209: filesize = -1;
210: else
211: filesize = st.st_size;
212:
213: if (outfile != NULL)
214: savefile = outfile;
215: else {
216: if (path[strlen(path) - 1] == '/') /* Consider no file */
217: savefile = NULL; /* after dir invalid. */
1.198 naddy 218: else {
219: pathbuf = strdup(path);
220: if (pathbuf == NULL)
221: errx(1, "Can't allocate memory for filename");
222: savefile = basename(pathbuf);
223: }
1.186 jca 224: }
225:
226: if (EMPTYSTRING(savefile)) {
227: warnx("No filename after directory (use -o): %s", path);
228: goto cleanup_copy;
229: }
230:
231: /* Open the output file. */
232: if (!pipeout) {
233: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
234: if (out == -1) {
235: warn("Can't open %s", savefile);
236: goto cleanup_copy;
237: }
238: } else
239: out = fileno(stdout);
240:
241: if ((buf = malloc(buflen)) == NULL)
242: errx(1, "Can't allocate memory for transfer buffer");
243:
244: /* Trap signals */
245: oldintr = NULL;
246: oldinti = NULL;
247: if (setjmp(httpabort)) {
248: if (oldintr)
249: (void)signal(SIGINT, oldintr);
250: if (oldinti)
251: (void)signal(SIGINFO, oldinti);
252: goto cleanup_copy;
253: }
1.197 kn 254: oldintr = signal(SIGINT, aborthttp);
1.186 jca 255:
256: bytes = 0;
257: hashbytes = mark;
258: progressmeter(-1, path);
259:
260: /* Finally, suck down the file. */
261: oldinti = signal(SIGINFO, psummary);
262: while ((len = read(fd, buf, buflen)) > 0) {
263: bytes += len;
264: for (cp = buf; len > 0; len -= wlen, cp += wlen) {
265: if ((wlen = write(out, cp, len)) == -1) {
266: warn("Writing %s", savefile);
1.196 jca 267: signal(SIGINT, oldintr);
1.186 jca 268: signal(SIGINFO, oldinti);
269: goto cleanup_copy;
270: }
271: }
272: if (hash && !progress) {
273: while (bytes >= hashbytes) {
274: (void)putc('#', ttyout);
275: hashbytes += mark;
276: }
277: (void)fflush(ttyout);
278: }
279: }
280: save_errno = errno;
1.196 jca 281: signal(SIGINT, oldintr);
1.186 jca 282: signal(SIGINFO, oldinti);
283: if (hash && !progress && bytes > 0) {
284: if (bytes < mark)
285: (void)putc('#', ttyout);
286: (void)putc('\n', ttyout);
287: (void)fflush(ttyout);
288: }
289: if (len == -1) {
290: warnc(save_errno, "Reading from file");
291: goto cleanup_copy;
292: }
293: progressmeter(1, NULL);
294: if (verbose)
295: ptransfer(0);
296:
297: rval = 0;
298:
299: cleanup_copy:
300: free(buf);
1.198 naddy 301: free(pathbuf);
1.186 jca 302: if (out >= 0 && out != fileno(stdout))
303: close(out);
304: close(fd);
305:
306: return rval;
307: }
308:
309: /*
1.6 millert 310: * Retrieve URL, via the proxy in $proxyvar if necessary.
1.1 millert 311: * Returns -1 on failure, 0 on success
312: */
1.14 millert 313: static int
1.157 deraadt 314: url_get(const char *origline, const char *proxyenv, const char *outfile, int lastfile)
1.1 millert 315: {
1.69 jsg 316: char pbuf[NI_MAXSERV], hbuf[NI_MAXHOST], *cp, *portnum, *path, ststr[4];
1.62 ray 317: char *hosttail, *cause = "unknown", *newline, *host, *port, *buf = NULL;
1.175 deraadt 318: char *epath, *redirurl, *loctail, *h, *p, gerror[200];
1.189 jca 319: int error, isftpurl = 0, isredirect = 0, rval = -1;
1.172 jca 320: int isunavail = 0, retryafter = -1;
1.152 krw 321: struct addrinfo hints, *res0, *res;
1.189 jca 322: const char *savefile;
1.198 naddy 323: char *pathbuf = NULL;
1.189 jca 324: char *proxyurl = NULL;
1.190 yasuoka 325: char *credentials = NULL, *proxy_credentials = NULL;
1.189 jca 326: int fd = -1, out = -1;
1.97 martynas 327: volatile sig_t oldintr, oldinti;
1.53 deraadt 328: FILE *fin = NULL;
1.1 millert 329: off_t hashbytes;
1.58 grunk 330: const char *errstr;
1.114 tedu 331: ssize_t len, wlen;
1.201 naddy 332: size_t bufsize;
1.136 bluhm 333: char *proxyhost = NULL;
1.154 deraadt 334: #ifndef NOSSL
1.61 deraadt 335: char *sslpath = NULL, *sslhost = NULL;
1.193 jca 336: int ishttpsurl = 0;
1.159 krw 337: #endif /* !NOSSL */
338: #ifndef SMALL
1.181 jca 339: char *full_host = NULL;
340: const char *scheme;
1.159 krw 341: char *locbase;
1.152 krw 342: struct addrinfo *ares = NULL;
1.200 robert 343: char tmbuf[32];
344: time_t mtime = 0;
345: struct stat stbuf;
346: struct tm lmt = { 0 };
347: struct timespec ts[2];
1.181 jca 348: #endif /* !SMALL */
1.134 jsing 349: struct tls *tls = NULL;
1.70 deraadt 350: int status;
1.105 haesbaer 351: int save_errno;
1.113 tedu 352: const size_t buflen = 128 * 1024;
1.178 jca 353: int chunked = 0;
1.14 millert 354:
1.97 martynas 355: direction = "received";
356:
1.62 ray 357: newline = strdup(origline);
358: if (newline == NULL)
1.14 millert 359: errx(1, "Can't allocate memory to parse URL");
1.102 halex 360: if (strncasecmp(newline, HTTP_URL, sizeof(HTTP_URL) - 1) == 0) {
1.62 ray 361: host = newline + sizeof(HTTP_URL) - 1;
1.102 halex 362: #ifndef SMALL
363: scheme = HTTP_URL;
364: #endif /* !SMALL */
365: } else if (strncasecmp(newline, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.62 ray 366: host = newline + sizeof(FTP_URL) - 1;
1.14 millert 367: isftpurl = 1;
1.102 halex 368: #ifndef SMALL
369: scheme = FTP_URL;
370: #endif /* !SMALL */
1.183 jca 371: } else if (strncasecmp(newline, HTTPS_URL, sizeof(HTTPS_URL) - 1) == 0) {
1.154 deraadt 372: #ifndef NOSSL
1.62 ray 373: host = newline + sizeof(HTTPS_URL) - 1;
1.61 deraadt 374: ishttpsurl = 1;
1.183 jca 375: #else
376: errx(1, "%s: No HTTPS support", newline);
377: #endif /* !NOSSL */
1.181 jca 378: #ifndef SMALL
1.102 halex 379: scheme = HTTPS_URL;
1.181 jca 380: #endif /* !SMALL */
1.14 millert 381: } else
1.186 jca 382: errx(1, "%s: URL not permitted", newline);
1.6 millert 383:
1.186 jca 384: path = strchr(host, '/'); /* Find path */
1.191 jca 385:
386: /*
387: * Look for auth header in host.
388: * Basic auth from RFC 2617, valid characters for path are in
389: * RFC 3986 section 3.3.
390: */
1.193 jca 391: if (!isftpurl) {
1.191 jca 392: p = strchr(host, '@');
393: if (p != NULL && (path == NULL || p < path)) {
394: *p++ = '\0';
395: credentials = recode_credentials(host);
396:
397: /* Overwrite userinfo */
398: memmove(host, p, strlen(p) + 1);
399: path = strchr(host, '/');
400: }
401: }
402:
1.186 jca 403: if (EMPTYSTRING(path)) {
404: if (outfile) { /* No slash, but */
405: path = strchr(host,'\0'); /* we have outfile. */
406: goto noslash;
1.22 deraadt 407: }
1.186 jca 408: if (isftpurl)
409: goto noftpautologin;
410: warnx("No `/' after host (use -o): %s", origline);
411: goto cleanup_url_get;
412: }
413: *path++ = '\0';
414: if (EMPTYSTRING(path) && !outfile) {
415: if (isftpurl)
416: goto noftpautologin;
417: warnx("No filename after host (use -o): %s", origline);
418: goto cleanup_url_get;
1.14 millert 419: }
1.1 millert 420:
1.93 martynas 421: noslash:
1.17 millert 422: if (outfile)
423: savefile = outfile;
1.93 martynas 424: else {
425: if (path[strlen(path) - 1] == '/') /* Consider no file */
426: savefile = NULL; /* after dir invalid. */
1.198 naddy 427: else {
428: pathbuf = strdup(path);
429: if (pathbuf == NULL)
430: errx(1, "Can't allocate memory for filename");
431: savefile = basename(pathbuf);
432: }
1.75 martynas 433: }
434:
1.14 millert 435: if (EMPTYSTRING(savefile)) {
436: if (isftpurl)
437: goto noftpautologin;
1.94 martynas 438: warnx("No filename after directory (use -o): %s", origline);
1.6 millert 439: goto cleanup_url_get;
1.14 millert 440: }
1.1 millert 441:
1.93 martynas 442: #ifndef SMALL
1.100 halex 443: if (resume && pipeout) {
1.93 martynas 444: warnx("can't append to stdout");
445: goto cleanup_url_get;
446: }
447: #endif /* !SMALL */
448:
1.186 jca 449: if (proxyenv != NULL) { /* use proxy */
1.154 deraadt 450: #ifndef NOSSL
1.61 deraadt 451: if (ishttpsurl) {
452: sslpath = strdup(path);
453: sslhost = strdup(host);
454: if (! sslpath || ! sslhost)
455: errx(1, "Can't allocate memory for https path/host.");
456: }
1.154 deraadt 457: #endif /* !NOSSL */
1.136 bluhm 458: proxyhost = strdup(host);
459: if (proxyhost == NULL)
460: errx(1, "Can't allocate memory for proxy host.");
1.62 ray 461: proxyurl = strdup(proxyenv);
462: if (proxyurl == NULL)
1.14 millert 463: errx(1, "Can't allocate memory for proxy URL.");
1.62 ray 464: if (strncasecmp(proxyurl, HTTP_URL, sizeof(HTTP_URL) - 1) == 0)
465: host = proxyurl + sizeof(HTTP_URL) - 1;
466: else if (strncasecmp(proxyurl, FTP_URL, sizeof(FTP_URL) - 1) == 0)
467: host = proxyurl + sizeof(FTP_URL) - 1;
1.6 millert 468: else {
1.14 millert 469: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 470: goto cleanup_url_get;
471: }
1.14 millert 472: if (EMPTYSTRING(host)) {
473: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 474: goto cleanup_url_get;
1.14 millert 475: }
1.93 martynas 476: if (*--path == '\0')
477: *path = '/'; /* add / back to real path */
1.1 millert 478: path = strchr(host, '/'); /* remove trailing / on host */
1.42 deraadt 479: if (!EMPTYSTRING(path))
1.73 drahn 480: *path++ = '\0'; /* i guess this ++ is useless */
481:
482: path = strchr(host, '@'); /* look for credentials in proxy */
483: if (!EMPTYSTRING(path)) {
1.81 espie 484: *path = '\0';
1.123 guenther 485: if (strchr(host, ':') == NULL) {
1.73 drahn 486: warnx("Malformed proxy URL: %s", proxyenv);
487: goto cleanup_url_get;
488: }
1.190 yasuoka 489: proxy_credentials = recode_credentials(host);
1.81 espie 490: *path = '@'; /* restore @ in proxyurl */
1.123 guenther 491:
1.73 drahn 492: /*
1.81 espie 493: * This removes the password from proxyurl,
1.73 drahn 494: * filling with stars
495: */
1.81 espie 496: for (host = 1 + strchr(proxyurl + 5, ':'); *host != '@';
1.179 deraadt 497: host++)
1.73 drahn 498: *host = '*';
499:
1.81 espie 500: host = path + 1;
1.73 drahn 501: }
1.123 guenther 502:
1.62 ray 503: path = newline;
1.1 millert 504: }
505:
1.28 itojun 506: if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL &&
507: (hosttail[1] == '\0' || hosttail[1] == ':')) {
508: host++;
509: *hosttail++ = '\0';
1.102 halex 510: #ifndef SMALL
511: if (asprintf(&full_host, "[%s]", host) == -1)
512: errx(1, "Cannot allocate memory for hostname");
513: #endif /* !SMALL */
1.28 itojun 514: } else
515: hosttail = host;
516:
517: portnum = strrchr(hosttail, ':'); /* find portnum */
1.1 millert 518: if (portnum != NULL)
519: *portnum++ = '\0';
1.154 deraadt 520: #ifndef NOSSL
1.150 millert 521: port = portnum ? portnum : (ishttpsurl ? httpsport : httpport);
1.154 deraadt 522: #else /* !NOSSL */
1.150 millert 523: port = portnum ? portnum : httpport;
1.154 deraadt 524: #endif /* !NOSSL */
1.1 millert 525:
1.80 martynas 526: #ifndef SMALL
1.102 halex 527: if (full_host == NULL)
528: if ((full_host = strdup(host)) == NULL)
529: errx(1, "Cannot allocate memory for hostname");
1.1 millert 530: if (debug)
1.106 haesbaer 531: fprintf(ttyout, "host %s, port %s, path %s, "
1.150 millert 532: "save as %s, auth %s.\n", host, port, path,
533: savefile, credentials ? credentials : "none");
1.80 martynas 534: #endif /* !SMALL */
1.1 millert 535:
1.25 itojun 536: memset(&hints, 0, sizeof(hints));
1.39 deraadt 537: hints.ai_family = family;
1.25 itojun 538: hints.ai_socktype = SOCK_STREAM;
539: error = getaddrinfo(host, port, &hints, &res0);
1.61 deraadt 540: /*
541: * If the services file is corrupt/missing, fall back
542: * on our hard-coded defines.
543: */
1.30 deraadt 544: if (error == EAI_SERVICE && port == httpport) {
545: snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT);
546: error = getaddrinfo(host, pbuf, &hints, &res0);
1.154 deraadt 547: #ifndef NOSSL
1.61 deraadt 548: } else if (error == EAI_SERVICE && port == httpsport) {
549: snprintf(pbuf, sizeof(pbuf), "%d", HTTPS_PORT);
550: error = getaddrinfo(host, pbuf, &hints, &res0);
1.154 deraadt 551: #endif /* !NOSSL */
1.30 deraadt 552: }
1.25 itojun 553: if (error) {
1.122 guenther 554: warnx("%s: %s", host, gai_strerror(error));
1.25 itojun 555: goto cleanup_url_get;
1.1 millert 556: }
557:
1.105 haesbaer 558: #ifndef SMALL
559: if (srcaddr) {
560: hints.ai_flags |= AI_NUMERICHOST;
561: error = getaddrinfo(srcaddr, NULL, &hints, &ares);
562: if (error) {
1.122 guenther 563: warnx("%s: %s", srcaddr, gai_strerror(error));
1.105 haesbaer 564: goto cleanup_url_get;
565: }
566: }
567: #endif /* !SMALL */
1.135 deraadt 568:
569: /* ensure consistent order of the output */
570: if (verbose)
571: setvbuf(ttyout, NULL, _IOLBF, 0);
1.105 haesbaer 572:
1.166 procter 573: fd = -1;
1.25 itojun 574: for (res = res0; res; res = res->ai_next) {
1.44 itojun 575: if (getnameinfo(res->ai_addr, res->ai_addrlen, hbuf,
576: sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0)
577: strlcpy(hbuf, "(unknown)", sizeof(hbuf));
1.41 deraadt 578: if (verbose)
1.44 itojun 579: fprintf(ttyout, "Trying %s...\n", hbuf);
1.14 millert 580:
1.166 procter 581: fd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
582: if (fd == -1) {
1.25 itojun 583: cause = "socket";
584: continue;
1.1 millert 585: }
586:
1.105 haesbaer 587: #ifndef SMALL
588: if (srcaddr) {
589: if (ares->ai_family != res->ai_family) {
1.166 procter 590: close(fd);
591: fd = -1;
1.105 haesbaer 592: errno = EINVAL;
593: cause = "bind";
594: continue;
595: }
1.170 deraadt 596: if (bind(fd, ares->ai_addr, ares->ai_addrlen) == -1) {
1.105 haesbaer 597: save_errno = errno;
1.166 procter 598: close(fd);
1.105 haesbaer 599: errno = save_errno;
1.166 procter 600: fd = -1;
1.105 haesbaer 601: cause = "bind";
602: continue;
603: }
604: }
605: #endif /* !SMALL */
606:
1.155 deraadt 607: if (connect_timeout) {
608: (void)signal(SIGALRM, tooslow);
609: alarmtimer(connect_timeout);
610: }
611:
1.166 procter 612: for (error = connect(fd, res->ai_addr, res->ai_addrlen);
613: error != 0 && errno == EINTR; error = connect_wait(fd))
1.149 millert 614: continue;
615: if (error != 0) {
1.57 otto 616: save_errno = errno;
1.166 procter 617: close(fd);
1.57 otto 618: errno = save_errno;
1.166 procter 619: fd = -1;
1.25 itojun 620: cause = "connect";
1.19 deraadt 621: continue;
622: }
1.25 itojun 623:
1.29 itojun 624: /* get port in numeric */
625: if (getnameinfo(res->ai_addr, res->ai_addrlen, NULL, 0,
626: pbuf, sizeof(pbuf), NI_NUMERICSERV) == 0)
627: port = pbuf;
628: else
629: port = NULL;
630:
1.158 jca 631: #ifndef NOSSL
1.61 deraadt 632: if (proxyenv && sslhost)
1.190 yasuoka 633: proxy_connect(fd, sslhost, proxy_credentials);
1.158 jca 634: #endif /* !NOSSL */
1.25 itojun 635: break;
636: }
637: freeaddrinfo(res0);
1.105 haesbaer 638: #ifndef SMALL
639: if (srcaddr)
640: freeaddrinfo(ares);
641: #endif /* !SMALL */
1.166 procter 642: if (fd < 0) {
1.33 millert 643: warn("%s", cause);
1.6 millert 644: goto cleanup_url_get;
1.1 millert 645: }
646:
1.154 deraadt 647: #ifndef NOSSL
1.61 deraadt 648: if (ishttpsurl) {
1.187 beck 649: ssize_t ret;
1.61 deraadt 650: if (proxyenv && sslpath) {
651: ishttpsurl = 0;
1.62 ray 652: proxyurl = NULL;
1.61 deraadt 653: path = sslpath;
654: }
1.131 jca 655: if (sslhost == NULL) {
656: sslhost = strdup(host);
657: if (sslhost == NULL)
658: errx(1, "Can't allocate memory for https host.");
1.116 jca 659: }
1.134 jsing 660: if ((tls = tls_client()) == NULL) {
1.126 jsing 661: fprintf(ttyout, "failed to create SSL client\n");
1.61 deraadt 662: goto cleanup_url_get;
663: }
1.134 jsing 664: if (tls_configure(tls, tls_config) != 0) {
1.187 beck 665: fprintf(ttyout, "TLS configuration failure: %s\n",
1.134 jsing 666: tls_error(tls));
1.61 deraadt 667: goto cleanup_url_get;
1.117 jca 668: }
1.166 procter 669: if (tls_connect_socket(tls, fd, sslhost) != 0) {
1.187 beck 670: fprintf(ttyout, "TLS connect failure: %s\n", tls_error(tls));
1.72 ray 671: goto cleanup_url_get;
1.118 jca 672: }
1.187 beck 673: do {
674: ret = tls_handshake(tls);
675: } while (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT);
676: if (ret != 0) {
677: fprintf(ttyout, "TLS handshake failure: %s\n", tls_error(tls));
1.176 jca 678: goto cleanup_url_get;
679: }
680: fin = funopen(tls, stdio_tls_read_wrapper,
681: stdio_tls_write_wrapper, NULL, NULL);
1.61 deraadt 682: } else {
1.166 procter 683: fin = fdopen(fd, "r+");
684: fd = -1;
1.61 deraadt 685: }
1.154 deraadt 686: #else /* !NOSSL */
1.166 procter 687: fin = fdopen(fd, "r+");
688: fd = -1;
1.154 deraadt 689: #endif /* !NOSSL */
1.155 deraadt 690:
1.157 deraadt 691: #ifdef SMALL
692: if (lastfile) {
693: if (pipeout) {
694: if (pledge("stdio rpath inet dns tty", NULL) == -1)
695: err(1, "pledge");
696: } else {
697: if (pledge("stdio rpath wpath cpath inet dns tty", NULL) == -1)
698: err(1, "pledge");
699: }
700: }
701: #endif
702:
1.155 deraadt 703: if (connect_timeout) {
704: signal(SIGALRM, SIG_DFL);
705: alarmtimer(0);
706: }
1.40 fgsch 707:
1.1 millert 708: /*
1.40 fgsch 709: * Construct and send the request. Proxy requests don't want leading /.
1.1 millert 710: */
1.154 deraadt 711: #ifndef NOSSL
1.74 pyr 712: cookie_get(host, path, ishttpsurl, &buf);
1.154 deraadt 713: #endif /* !NOSSL */
1.95 martynas 714:
715: epath = url_encode(path);
1.62 ray 716: if (proxyurl) {
1.151 millert 717: if (verbose) {
718: fprintf(ttyout, "Requesting %s (via %s)\n",
1.208 ! kn 719: origline, proxyurl);
1.151 millert 720: }
1.32 itojun 721: /*
722: * Host: directive must use the destination host address for
1.136 bluhm 723: * the original URI (path).
1.32 itojun 724: */
1.190 yasuoka 725: ftp_printf(fin, "GET %s HTTP/1.1\r\n"
726: "Connection: close\r\n"
727: "Host: %s\r\n%s%s\r\n",
728: epath, proxyhost, buf ? buf : "", httpuseragent);
1.123 guenther 729: if (credentials)
1.190 yasuoka 730: ftp_printf(fin, "Authorization: Basic %s\r\n",
731: credentials);
732: if (proxy_credentials)
733: ftp_printf(fin, "Proxy-Authorization: Basic %s\r\n",
734: proxy_credentials);
735: ftp_printf(fin, "\r\n");
1.28 itojun 736: } else {
1.208 ! kn 737: if (verbose)
! 738: fprintf(ttyout, "Requesting %s\n", origline);
1.207 kn 739: #ifndef SMALL
1.200 robert 740: if (resume || timestamp) {
741: if (stat(savefile, &stbuf) == 0) {
742: if (resume)
743: restart_point = stbuf.st_size;
744: if (timestamp)
745: mtime = stbuf.st_mtime;
746: } else {
1.90 martynas 747: restart_point = 0;
1.200 robert 748: mtime = 0;
749: }
1.90 martynas 750: }
1.154 deraadt 751: #endif /* SMALL */
1.194 jca 752: ftp_printf(fin,
753: "GET /%s HTTP/1.1\r\n"
754: "Connection: close\r\n"
755: "Host: ", epath);
1.136 bluhm 756: if (proxyhost) {
1.184 jca 757: ftp_printf(fin, "%s", proxyhost);
1.136 bluhm 758: port = NULL;
759: } else if (strchr(host, ':')) {
1.55 fgsch 760: /*
761: * strip off scoped address portion, since it's
762: * local to node
763: */
1.32 itojun 764: h = strdup(host);
765: if (h == NULL)
766: errx(1, "Can't allocate memory.");
767: if ((p = strchr(h, '%')) != NULL)
768: *p = '\0';
1.184 jca 769: ftp_printf(fin, "[%s]", h);
1.32 itojun 770: free(h);
1.55 fgsch 771: } else
1.184 jca 772: ftp_printf(fin, "%s", host);
1.55 fgsch 773:
774: /*
775: * Send port number only if it's specified and does not equal
776: * 80. Some broken HTTP servers get confused if you explicitly
777: * send them the port number.
778: */
1.154 deraadt 779: #ifndef NOSSL
1.61 deraadt 780: if (port && strcmp(port, (ishttpsurl ? "443" : "80")) != 0)
1.184 jca 781: ftp_printf(fin, ":%s", port);
1.90 martynas 782: if (restart_point)
1.184 jca 783: ftp_printf(fin, "\r\nRange: bytes=%lld-",
1.75 martynas 784: (long long)restart_point);
1.154 deraadt 785: #else /* !NOSSL */
1.55 fgsch 786: if (port && strcmp(port, "80") != 0)
1.184 jca 787: ftp_printf(fin, ":%s", port);
1.154 deraadt 788: #endif /* !NOSSL */
1.200 robert 789:
790: #ifndef SMALL
791: if (mtime && (http_time(mtime, tmbuf, sizeof(tmbuf)) != 0))
792: ftp_printf(fin, "\r\nIf-Modified-Since: %s", tmbuf);
793: #endif /* SMALL */
794:
1.194 jca 795: ftp_printf(fin, "\r\n%s%s\r\n",
1.124 lteo 796: buf ? buf : "", httpuseragent);
1.194 jca 797: if (credentials)
798: ftp_printf(fin, "Authorization: Basic %s\r\n",
799: credentials);
800: ftp_printf(fin, "\r\n");
1.28 itojun 801: }
1.95 martynas 802: free(epath);
1.74 pyr 803:
1.154 deraadt 804: #ifndef NOSSL
1.74 pyr 805: free(buf);
1.156 tb 806: #endif /* !NOSSL */
1.74 pyr 807: buf = NULL;
1.201 naddy 808: bufsize = 0;
1.74 pyr 809:
1.176 jca 810: if (fflush(fin) == EOF) {
811: warnx("Writing HTTP request: %s", sockerror(tls));
1.6 millert 812: goto cleanup_url_get;
1.1 millert 813: }
1.201 naddy 814: if ((len = getline(&buf, &bufsize, fin)) == -1) {
1.176 jca 815: warnx("Receiving HTTP reply: %s", sockerror(tls));
1.40 fgsch 816: goto cleanup_url_get;
1.1 millert 817: }
1.40 fgsch 818:
819: while (len > 0 && (buf[len-1] == '\r' || buf[len-1] == '\n'))
820: buf[--len] = '\0';
1.80 martynas 821: #ifndef SMALL
1.40 fgsch 822: if (debug)
823: fprintf(ttyout, "received '%s'\n", buf);
1.80 martynas 824: #endif /* !SMALL */
1.40 fgsch 825:
1.1 millert 826: cp = strchr(buf, ' ');
827: if (cp == NULL)
828: goto improper;
829: else
830: cp++;
1.69 jsg 831:
832: strlcpy(ststr, cp, sizeof(ststr));
1.171 jca 833: status = strtonum(ststr, 200, 503, &errstr);
1.69 jsg 834: if (errstr) {
1.175 deraadt 835: strnvis(gerror, cp, sizeof gerror, VIS_SAFE);
836: warnx("Error retrieving %s: %s", origline, gerror);
1.69 jsg 837: goto cleanup_url_get;
838: }
839:
840: switch (status) {
841: case 200: /* OK */
1.75 martynas 842: #ifndef SMALL
1.109 sthen 843: /*
1.98 phessler 844: * When we request a partial file, and we receive an HTTP 200
845: * it is a good indication that the server doesn't support
846: * range requests, and is about to send us the entire file.
847: * If the restart_point == 0, then we are not actually
848: * requesting a partial file, and an HTTP 200 is appropriate.
849: */
850: if (resume && restart_point != 0) {
851: warnx("Server does not support resume.");
852: restart_point = resume = 0;
853: }
1.101 halex 854: /* FALLTHROUGH */
1.75 martynas 855: case 206: /* Partial Content */
1.91 halex 856: #endif /* !SMALL */
1.69 jsg 857: break;
858: case 301: /* Moved Permanently */
859: case 302: /* Found */
860: case 303: /* See Other */
861: case 307: /* Temporary Redirect */
1.199 chrisz 862: case 308: /* Permanent Redirect (RFC 7538) */
1.40 fgsch 863: isredirect++;
1.54 fgsch 864: if (redirect_loop++ > 10) {
865: warnx("Too many redirections requested");
866: goto cleanup_url_get;
867: }
1.69 jsg 868: break;
1.75 martynas 869: #ifndef SMALL
1.200 robert 870: case 304: /* Not Modified */
871: warnx("File is not modified on the server");
872: goto cleanup_url_get;
1.75 martynas 873: case 416: /* Requested Range Not Satisfiable */
874: warnx("File is already fully retrieved.");
875: goto cleanup_url_get;
1.78 martynas 876: #endif /* !SMALL */
1.171 jca 877: case 503:
1.172 jca 878: isunavail = 1;
879: break;
1.69 jsg 880: default:
1.175 deraadt 881: strnvis(gerror, cp, sizeof gerror, VIS_SAFE);
882: warnx("Error retrieving %s: %s", origline, gerror);
1.6 millert 883: goto cleanup_url_get;
1.1 millert 884: }
885:
886: /*
887: * Read the rest of the header.
888: */
1.40 fgsch 889: filesize = -1;
890:
1.62 ray 891: for (;;) {
1.201 naddy 892: if ((len = getline(&buf, &bufsize, fin)) == -1) {
1.176 jca 893: warnx("Receiving HTTP reply: %s", sockerror(tls));
1.40 fgsch 894: goto cleanup_url_get;
895: }
1.61 deraadt 896:
1.40 fgsch 897: while (len > 0 && (buf[len-1] == '\r' || buf[len-1] == '\n'))
898: buf[--len] = '\0';
899: if (len == 0)
1.1 millert 900: break;
1.80 martynas 901: #ifndef SMALL
1.40 fgsch 902: if (debug)
903: fprintf(ttyout, "received '%s'\n", buf);
1.80 martynas 904: #endif /* !SMALL */
1.1 millert 905:
1.40 fgsch 906: /* Look for some headers */
907: cp = buf;
1.1 millert 908: #define CONTENTLEN "Content-Length: "
1.40 fgsch 909: if (strncasecmp(cp, CONTENTLEN, sizeof(CONTENTLEN) - 1) == 0) {
1.104 sthen 910: size_t s;
1.40 fgsch 911: cp += sizeof(CONTENTLEN) - 1;
1.111 deraadt 912: if ((s = strcspn(cp, " \t")))
1.104 sthen 913: *(cp+s) = 0;
1.58 grunk 914: filesize = strtonum(cp, 0, LLONG_MAX, &errstr);
915: if (errstr != NULL)
1.40 fgsch 916: goto improper;
1.75 martynas 917: #ifndef SMALL
1.90 martynas 918: if (restart_point)
1.75 martynas 919: filesize += restart_point;
1.78 martynas 920: #endif /* !SMALL */
1.40 fgsch 921: #define LOCATION "Location: "
922: } else if (isredirect &&
923: strncasecmp(cp, LOCATION, sizeof(LOCATION) - 1) == 0) {
924: cp += sizeof(LOCATION) - 1;
1.144 sthen 925: /*
926: * If there is a colon before the first slash, this URI
927: * is not relative. RFC 3986 4.2
928: */
929: if (cp[strcspn(cp, ":/")] != ':') {
1.102 halex 930: #ifdef SMALL
931: errx(1, "Relative redirect not supported");
932: #else /* SMALL */
1.144 sthen 933: /* XXX doesn't handle protocol-relative URIs */
1.102 halex 934: if (*cp == '/') {
935: locbase = NULL;
936: cp++;
937: } else {
938: locbase = strdup(path);
939: if (locbase == NULL)
940: errx(1, "Can't allocate memory"
941: " for location base");
942: loctail = strchr(locbase, '#');
943: if (loctail != NULL)
944: *loctail = '\0';
945: loctail = strchr(locbase, '?');
946: if (loctail != NULL)
947: *loctail = '\0';
948: loctail = strrchr(locbase, '/');
949: if (loctail == NULL) {
950: free(locbase);
951: locbase = NULL;
952: } else
953: loctail[1] = '\0';
954: }
955: /* Contruct URL from relative redirect */
956: if (asprintf(&redirurl, "%s%s%s%s/%s%s",
957: scheme, full_host,
958: portnum ? ":" : "",
959: portnum ? portnum : "",
960: locbase ? locbase : "",
961: cp) == -1)
962: errx(1, "Cannot build "
963: "redirect URL");
964: free(locbase);
965: #endif /* SMALL */
966: } else if ((redirurl = strdup(cp)) == NULL)
967: errx(1, "Cannot allocate memory for URL");
968: loctail = strchr(redirurl, '#');
969: if (loctail != NULL)
970: *loctail = '\0';
1.40 fgsch 971: if (verbose)
1.102 halex 972: fprintf(ttyout, "Redirected to %s\n", redirurl);
1.173 jca 973: ftp_close(&fin, &tls, &fd);
1.157 deraadt 974: rval = url_get(redirurl, proxyenv, savefile, lastfile);
1.102 halex 975: free(redirurl);
976: goto cleanup_url_get;
1.172 jca 977: #define RETRYAFTER "Retry-After: "
978: } else if (isunavail &&
979: strncasecmp(cp, RETRYAFTER, sizeof(RETRYAFTER) - 1) == 0) {
980: size_t s;
981: cp += sizeof(RETRYAFTER) - 1;
982: if ((s = strcspn(cp, " \t")))
983: cp[s] = '\0';
984: retryafter = strtonum(cp, 0, 0, &errstr);
985: if (errstr != NULL)
986: retryafter = -1;
1.178 jca 987: #define TRANSFER_ENCODING "Transfer-Encoding: "
988: } else if (strncasecmp(cp, TRANSFER_ENCODING,
989: sizeof(TRANSFER_ENCODING) - 1) == 0) {
990: cp += sizeof(TRANSFER_ENCODING) - 1;
991: cp[strcspn(cp, " \t")] = '\0';
992: if (strcasecmp(cp, "chunked") == 0)
993: chunked = 1;
1.200 robert 994: #ifndef SMALL
995: #define LAST_MODIFIED "Last-Modified: "
996: } else if (strncasecmp(cp, LAST_MODIFIED,
997: sizeof(LAST_MODIFIED) - 1) == 0) {
998: cp += sizeof(LAST_MODIFIED) - 1;
999: cp[strcspn(cp, "\t")] = '\0';
1000: if (strptime(cp, "%a, %d %h %Y %T %Z", &lmt) == NULL)
1001: server_timestamps = 0;
1002: #endif /* !SMALL */
1.40 fgsch 1003: }
1.172 jca 1004: }
1.201 naddy 1005: free(buf);
1.202 naddy 1006: buf = NULL;
1.172 jca 1007:
1.178 jca 1008: /* Content-Length should be ignored for Transfer-Encoding: chunked */
1009: if (chunked)
1010: filesize = -1;
1011:
1.172 jca 1012: if (isunavail) {
1013: if (retried || retryafter != 0)
1.175 deraadt 1014: warnx("Error retrieving %s: 503 Service Unavailable",
1015: origline);
1.172 jca 1016: else {
1017: if (verbose)
1018: fprintf(ttyout, "Retrying %s\n", origline);
1019: retried = 1;
1.174 jca 1020: ftp_close(&fin, &tls, &fd);
1.172 jca 1021: rval = url_get(origline, proxyenv, savefile, lastfile);
1022: }
1023: goto cleanup_url_get;
1.1 millert 1024: }
1025:
1.17 millert 1026: /* Open the output file. */
1.100 halex 1027: if (!pipeout) {
1.75 martynas 1028: #ifndef SMALL
1029: if (resume)
1.83 martynas 1030: out = open(savefile, O_CREAT | O_WRONLY | O_APPEND,
1031: 0666);
1.75 martynas 1032: else
1.78 martynas 1033: #endif /* !SMALL */
1.75 martynas 1034: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC,
1035: 0666);
1.170 deraadt 1036: if (out == -1) {
1.10 deraadt 1037: warn("Can't open %s", savefile);
1038: goto cleanup_url_get;
1039: }
1.157 deraadt 1040: } else {
1.17 millert 1041: out = fileno(stdout);
1.157 deraadt 1042: #ifdef SMALL
1043: if (lastfile) {
1044: if (pledge("stdio tty", NULL) == -1)
1045: err(1, "pledge");
1046: }
1047: #endif
1048: }
1.1 millert 1049:
1.189 jca 1050: if ((buf = malloc(buflen)) == NULL)
1051: errx(1, "Can't allocate memory for transfer buffer");
1052:
1.1 millert 1053: /* Trap signals */
1054: oldintr = NULL;
1.97 martynas 1055: oldinti = NULL;
1.1 millert 1056: if (setjmp(httpabort)) {
1057: if (oldintr)
1.2 millert 1058: (void)signal(SIGINT, oldintr);
1.97 martynas 1059: if (oldinti)
1060: (void)signal(SIGINFO, oldinti);
1.6 millert 1061: goto cleanup_url_get;
1.1 millert 1062: }
1063: oldintr = signal(SIGINT, aborthttp);
1064:
1065: bytes = 0;
1066: hashbytes = mark;
1.84 martynas 1067: progressmeter(-1, path);
1.43 millert 1068:
1.1 millert 1069: /* Finally, suck down the file. */
1.97 martynas 1070: oldinti = signal(SIGINFO, psummary);
1.178 jca 1071: if (chunked) {
1.182 jca 1072: error = save_chunked(fin, tls, out, buf, buflen);
1.196 jca 1073: signal(SIGINT, oldintr);
1.182 jca 1074: signal(SIGINFO, oldinti);
1075: if (error == -1)
1.178 jca 1076: goto cleanup_url_get;
1077: } else {
1.188 jca 1078: while ((len = fread(buf, 1, buflen, fin)) > 0) {
1.178 jca 1079: bytes += len;
1.188 jca 1080: for (cp = buf; len > 0; len -= wlen, cp += wlen) {
1081: if ((wlen = write(out, cp, len)) == -1) {
1.178 jca 1082: warn("Writing %s", savefile);
1.196 jca 1083: signal(SIGINT, oldintr);
1.178 jca 1084: signal(SIGINFO, oldinti);
1085: goto cleanup_url_get;
1.188 jca 1086: }
1.178 jca 1087: }
1088: if (hash && !progress) {
1089: while (bytes >= hashbytes) {
1090: (void)putc('#', ttyout);
1091: hashbytes += mark;
1092: }
1093: (void)fflush(ttyout);
1.1 millert 1094: }
1095: }
1.188 jca 1096: save_errno = errno;
1.196 jca 1097: signal(SIGINT, oldintr);
1.178 jca 1098: signal(SIGINFO, oldinti);
1099: if (hash && !progress && bytes > 0) {
1100: if (bytes < mark)
1.10 deraadt 1101: (void)putc('#', ttyout);
1.178 jca 1102: (void)putc('\n', ttyout);
1.10 deraadt 1103: (void)fflush(ttyout);
1.1 millert 1104: }
1.188 jca 1105: if (len == 0 && ferror(fin)) {
1106: errno = save_errno;
1.178 jca 1107: warnx("Reading from socket: %s", sockerror(tls));
1108: goto cleanup_url_get;
1109: }
1.1 millert 1110: }
1.84 martynas 1111: progressmeter(1, NULL);
1.75 martynas 1112: if (
1113: #ifndef SMALL
1114: !resume &&
1.78 martynas 1115: #endif /* !SMALL */
1.75 martynas 1116: filesize != -1 && len == 0 && bytes != filesize) {
1.24 deraadt 1117: if (verbose)
1118: fputs("Read short file.\n", ttyout);
1119: goto cleanup_url_get;
1120: }
1121:
1.1 millert 1122: if (verbose)
1.97 martynas 1123: ptransfer(0);
1.1 millert 1124:
1.40 fgsch 1125: rval = 0;
1126: goto cleanup_url_get;
1.1 millert 1127:
1.14 millert 1128: noftpautologin:
1129: warnx(
1130: "Auto-login using ftp URLs isn't supported when using $ftp_proxy");
1131: goto cleanup_url_get;
1132:
1.1 millert 1133: improper:
1.8 millert 1134: warnx("Improper response from %s", host);
1.14 millert 1135:
1.6 millert 1136: cleanup_url_get:
1.181 jca 1137: #ifndef SMALL
1138: free(full_host);
1139: #endif /* !SMALL */
1.154 deraadt 1140: #ifndef NOSSL
1.128 jca 1141: free(sslhost);
1.154 deraadt 1142: #endif /* !NOSSL */
1.173 jca 1143: ftp_close(&fin, &tls, &fd);
1.200 robert 1144: if (out >= 0 && out != fileno(stdout)) {
1145: #ifndef SMALL
1.203 sthen 1146: if (server_timestamps && lmt.tm_zone != 0 &&
1147: fstat(out, &stbuf) == 0 && S_ISREG(stbuf.st_mode) != 0) {
1.200 robert 1148: ts[0].tv_nsec = UTIME_NOW;
1149: ts[1].tv_nsec = 0;
1150: setenv("TZ", lmt.tm_zone, 1);
1151: if (((ts[1].tv_sec = mktime(&lmt)) != -1) &&
1152: (futimens(out, ts) == -1))
1153: warnx("Unable to set file modification time");
1154: }
1155: #endif /* !SMALL */
1.162 sthen 1156: close(out);
1.200 robert 1157: }
1.67 steven 1158: free(buf);
1.198 naddy 1159: free(pathbuf);
1.136 bluhm 1160: free(proxyhost);
1.67 steven 1161: free(proxyurl);
1.62 ray 1162: free(newline);
1.123 guenther 1163: free(credentials);
1.190 yasuoka 1164: free(proxy_credentials);
1.40 fgsch 1165: return (rval);
1.178 jca 1166: }
1167:
1168: static int
1169: save_chunked(FILE *fin, struct tls *tls, int out, char *buf, size_t buflen)
1170: {
1171:
1.201 naddy 1172: char *header = NULL, *end, *cp;
1.178 jca 1173: unsigned long chunksize;
1.201 naddy 1174: size_t hsize = 0, rlen, wlen;
1.178 jca 1175: ssize_t written;
1176: char cr, lf;
1177:
1178: for (;;) {
1.201 naddy 1179: if (getline(&header, &hsize, fin) == -1)
1.178 jca 1180: break;
1181: /* strip CRLF and any optional chunk extension */
1182: header[strcspn(header, ";\r\n")] = '\0';
1183: errno = 0;
1184: chunksize = strtoul(header, &end, 16);
1185: if (errno || header[0] == '\0' || *end != '\0' ||
1186: chunksize > INT_MAX) {
1187: warnx("Invalid chunk size '%s'", header);
1188: free(header);
1189: return -1;
1190: }
1191:
1192: if (chunksize == 0) {
1193: /* We're done. Ignore optional trailer. */
1.201 naddy 1194: free(header);
1.178 jca 1195: return 0;
1196: }
1197:
1198: for (written = 0; chunksize != 0; chunksize -= rlen) {
1199: rlen = (chunksize < buflen) ? chunksize : buflen;
1200: rlen = fread(buf, 1, rlen, fin);
1201: if (rlen == 0)
1202: break;
1203: bytes += rlen;
1204: for (cp = buf, wlen = rlen; wlen > 0;
1.179 deraadt 1205: wlen -= written, cp += written) {
1.178 jca 1206: if ((written = write(out, cp, wlen)) == -1) {
1207: warn("Writing output file");
1.201 naddy 1208: free(header);
1.178 jca 1209: return -1;
1210: }
1211: }
1212: }
1213:
1214: if (rlen == 0 ||
1215: fread(&cr, 1, 1, fin) != 1 ||
1216: fread(&lf, 1, 1, fin) != 1)
1217: break;
1218:
1219: if (cr != '\r' || lf != '\n') {
1220: warnx("Invalid chunked encoding");
1.201 naddy 1221: free(header);
1.178 jca 1222: return -1;
1223: }
1224: }
1.201 naddy 1225: free(header);
1.178 jca 1226:
1227: if (ferror(fin))
1228: warnx("Error while reading from socket: %s", sockerror(tls));
1229: else
1230: warnx("Invalid chunked encoding: short read");
1231:
1232: return -1;
1.1 millert 1233: }
1234:
1235: /*
1236: * Abort a http retrieval
1237: */
1.51 deraadt 1238: /* ARGSUSED */
1.177 jca 1239: static void
1.51 deraadt 1240: aborthttp(int signo)
1.1 millert 1241: {
1.197 kn 1242: const char errmsg[] = "\nfetch aborted.\n";
1.1 millert 1243:
1244: alarmtimer(0);
1.197 kn 1245: write(fileno(ttyout), errmsg, sizeof(errmsg) - 1);
1.22 deraadt 1246: longjmp(httpabort, 1);
1247: }
1248:
1249: /*
1.1 millert 1250: * Retrieve multiple files from the command line, transferring
1251: * files of the form "host:path", "ftp://host/path" using the
1252: * ftp protocol, and files of the form "http://host/path" using
1253: * the http protocol.
1.2 millert 1254: * If path has a trailing "/", then return (-1);
1.1 millert 1255: * the path will be cd-ed into and the connection remains open,
1256: * and the function will return -1 (to indicate the connection
1257: * is alive).
1258: * If an error occurs the return value will be the offset+1 in
1259: * argv[] of the file that caused a problem (i.e, argv[x]
1260: * returns x+1)
1261: * Otherwise, 0 is returned if all files retrieved successfully.
1262: */
1263: int
1.50 deraadt 1264: auto_fetch(int argc, char *argv[], char *outfile)
1.1 millert 1265: {
1266: char *xargv[5];
1.62 ray 1267: char *cp, *url, *host, *dir, *file, *portnum;
1268: char *username, *pass, *pathstart;
1.6 millert 1269: char *ftpproxy, *httpproxy;
1.157 deraadt 1270: int rval, xargc, lastfile;
1.14 millert 1271: volatile int argpos;
1.49 krw 1272: int dirhasglob, filehasglob, oautologin;
1.137 deraadt 1273: char rempath[PATH_MAX];
1.1 millert 1274:
1275: argpos = 0;
1276:
1277: if (setjmp(toplevel)) {
1278: if (connected)
1279: disconnect(0, NULL);
1.2 millert 1280: return (argpos + 1);
1.1 millert 1281: }
1.3 millert 1282: (void)signal(SIGINT, (sig_t)intr);
1283: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 millert 1284:
1.45 millert 1285: if ((ftpproxy = getenv(FTP_PROXY)) != NULL && *ftpproxy == '\0')
1286: ftpproxy = NULL;
1287: if ((httpproxy = getenv(HTTP_PROXY)) != NULL && *httpproxy == '\0')
1288: httpproxy = NULL;
1.6 millert 1289:
1.1 millert 1290: /*
1291: * Loop through as long as there's files to fetch.
1292: */
1.123 guenther 1293: username = pass = NULL;
1.62 ray 1294: for (rval = 0; (rval == 0) && (argpos < argc); free(url), argpos++) {
1.1 millert 1295: if (strchr(argv[argpos], ':') == NULL)
1296: break;
1.123 guenther 1297:
1298: free(username);
1299: free(pass);
1.62 ray 1300: host = dir = file = portnum = username = pass = NULL;
1.1 millert 1301:
1.157 deraadt 1302: lastfile = (argv[argpos+1] == NULL);
1303:
1.1 millert 1304: /*
1305: * We muck with the string, so we make a copy.
1306: */
1.62 ray 1307: url = strdup(argv[argpos]);
1308: if (url == NULL)
1.1 millert 1309: errx(1, "Can't allocate memory for auto-fetch.");
1310:
1.186 jca 1311: if (strncasecmp(url, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
1312: if (file_get(url + sizeof(FILE_URL) - 1, outfile) == -1)
1313: rval = argpos + 1;
1314: continue;
1315: }
1316:
1.1 millert 1317: /*
1.186 jca 1318: * Try HTTP URL-style arguments next.
1.1 millert 1319: */
1.62 ray 1320: if (strncasecmp(url, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
1.186 jca 1321: strncasecmp(url, HTTPS_URL, sizeof(HTTPS_URL) -1) == 0) {
1.54 fgsch 1322: redirect_loop = 0;
1.171 jca 1323: retried = 0;
1.157 deraadt 1324: if (url_get(url, httpproxy, outfile, lastfile) == -1)
1.1 millert 1325: rval = argpos + 1;
1326: continue;
1327: }
1328:
1329: /*
1.6 millert 1330: * Try FTP URL-style arguments next. If ftpproxy is
1331: * set, use url_get() instead of standard ftp.
1332: * Finally, try host:file.
1.1 millert 1333: */
1.62 ray 1334: host = url;
1335: if (strncasecmp(url, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.37 heko 1336: char *passend, *passagain, *userend;
1.31 itojun 1337:
1.6 millert 1338: if (ftpproxy) {
1.157 deraadt 1339: if (url_get(url, ftpproxy, outfile, lastfile) == -1)
1.6 millert 1340: rval = argpos + 1;
1341: continue;
1342: }
1.1 millert 1343: host += sizeof(FTP_URL) - 1;
1.8 millert 1344: dir = strchr(host, '/');
1.1 millert 1345:
1.8 millert 1346: /* Look for [user:pass@]host[:port] */
1.31 itojun 1347:
1348: /* check if we have "user:pass@" */
1.37 heko 1349: userend = strchr(host, ':');
1.31 itojun 1350: passend = strchr(host, '@');
1351: if (passend && userend && userend < passend &&
1352: (!dir || passend < dir)) {
1.62 ray 1353: username = host;
1.31 itojun 1354: pass = userend + 1;
1355: host = passend + 1;
1356: *userend = *passend = '\0';
1.37 heko 1357: passagain = strchr(host, '@');
1.42 deraadt 1358: if (strchr(pass, '@') != NULL ||
1.37 heko 1359: (passagain != NULL && passagain < dir)) {
1360: warnx(at_encoding_warning);
1.123 guenther 1361: username = pass = NULL;
1.37 heko 1362: goto bad_ftp_url;
1.42 deraadt 1363: }
1.31 itojun 1364:
1.77 martynas 1365: if (EMPTYSTRING(username)) {
1.11 millert 1366: bad_ftp_url:
1.31 itojun 1367: warnx("Invalid URL: %s", argv[argpos]);
1368: rval = argpos + 1;
1.123 guenther 1369: username = pass = NULL;
1.31 itojun 1370: continue;
1371: }
1.62 ray 1372: username = urldecode(username);
1.37 heko 1373: pass = urldecode(pass);
1.8 millert 1374: }
1.31 itojun 1375:
1376: /* check [host]:port, or [host] */
1377: if (host[0] == '[') {
1378: cp = strchr(host, ']');
1379: if (cp && (!dir || cp < dir)) {
1380: if (cp + 1 == dir || cp[1] == ':') {
1381: host++;
1382: *cp++ = '\0';
1383: } else
1384: cp = NULL;
1385: } else
1386: cp = host;
1.25 itojun 1387: } else
1388: cp = host;
1.31 itojun 1389:
1390: /* split off host[:port] if there is */
1391: if (cp) {
1392: portnum = strchr(cp, ':');
1.52 henning 1393: pathstart = strchr(cp, '/');
1394: /* : in path is not a port # indicator */
1395: if (portnum && pathstart &&
1396: pathstart < portnum)
1397: portnum = NULL;
1398:
1.31 itojun 1399: if (!portnum)
1400: ;
1401: else {
1402: if (!dir)
1403: ;
1404: else if (portnum + 1 < dir) {
1405: *portnum++ = '\0';
1406: /*
1407: * XXX should check if portnum
1408: * is decimal number
1409: */
1410: } else {
1411: /* empty portnum */
1412: goto bad_ftp_url;
1413: }
1414: }
1415: } else
1416: portnum = NULL;
1.8 millert 1417: } else { /* classic style `host:file' */
1418: dir = strchr(host, ':');
1419: }
1.1 millert 1420: if (EMPTYSTRING(host)) {
1421: rval = argpos + 1;
1422: continue;
1423: }
1424:
1425: /*
1.9 millert 1426: * If dir is NULL, the file wasn't specified
1.1 millert 1427: * (URL looked something like ftp://host)
1428: */
1.8 millert 1429: if (dir != NULL)
1430: *dir++ = '\0';
1.1 millert 1431:
1432: /*
1433: * Extract the file and (if present) directory name.
1434: */
1.42 deraadt 1435: if (!EMPTYSTRING(dir)) {
1.8 millert 1436: cp = strrchr(dir, '/');
1.1 millert 1437: if (cp != NULL) {
1438: *cp++ = '\0';
1439: file = cp;
1440: } else {
1441: file = dir;
1442: dir = NULL;
1443: }
1444: }
1.80 martynas 1445: #ifndef SMALL
1.1 millert 1446: if (debug)
1.42 deraadt 1447: fprintf(ttyout,
1448: "user %s:%s host %s port %s dir %s file %s\n",
1.76 martynas 1449: username, pass ? "XXXX" : NULL, host, portnum,
1450: dir, file);
1.80 martynas 1451: #endif /* !SMALL */
1.1 millert 1452:
1453: /*
1.49 krw 1454: * Set up the connection.
1.1 millert 1455: */
1.49 krw 1456: if (connected)
1457: disconnect(0, NULL);
1458: xargv[0] = __progname;
1459: xargv[1] = host;
1.8 millert 1460: xargv[2] = NULL;
1.49 krw 1461: xargc = 2;
1462: if (!EMPTYSTRING(portnum)) {
1463: xargv[2] = portnum;
1464: xargv[3] = NULL;
1465: xargc = 3;
1466: }
1467: oautologin = autologin;
1.88 martynas 1468: if (username == NULL)
1.89 halex 1469: anonftp = 1;
1470: else {
1471: anonftp = 0;
1.49 krw 1472: autologin = 0;
1.89 halex 1473: }
1.49 krw 1474: setpeer(xargc, xargv);
1475: autologin = oautologin;
1.87 martynas 1476: if (connected == 0 ||
1477: (connected == 1 && autologin && (username == NULL ||
1478: !ftp_login(host, username, pass)))) {
1.49 krw 1479: warnx("Can't connect or login to host `%s'", host);
1.8 millert 1480: rval = argpos + 1;
1481: continue;
1.1 millert 1482: }
1.49 krw 1483:
1484: /* Always use binary transfers. */
1485: setbinary(0, NULL);
1.1 millert 1486:
1.4 millert 1487: dirhasglob = filehasglob = 0;
1488: if (doglob) {
1.42 deraadt 1489: if (!EMPTYSTRING(dir) &&
1.4 millert 1490: strpbrk(dir, "*?[]{}") != NULL)
1491: dirhasglob = 1;
1.42 deraadt 1492: if (!EMPTYSTRING(file) &&
1.4 millert 1493: strpbrk(file, "*?[]{}") != NULL)
1494: filehasglob = 1;
1495: }
1496:
1.1 millert 1497: /* Change directories, if necessary. */
1.42 deraadt 1498: if (!EMPTYSTRING(dir) && !dirhasglob) {
1.1 millert 1499: xargv[0] = "cd";
1500: xargv[1] = dir;
1501: xargv[2] = NULL;
1502: cd(2, xargv);
1.42 deraadt 1503: if (!dirchange) {
1.1 millert 1504: rval = argpos + 1;
1505: continue;
1506: }
1507: }
1508:
1509: if (EMPTYSTRING(file)) {
1.86 martynas 1510: #ifndef SMALL
1.1 millert 1511: rval = -1;
1.86 martynas 1512: #else /* !SMALL */
1513: recvrequest("NLST", "-", NULL, "w", 0, 0);
1514: rval = 0;
1515: #endif /* !SMALL */
1.1 millert 1516: continue;
1517: }
1518:
1.21 marc 1519: if (verbose)
1.10 deraadt 1520: fprintf(ttyout, "Retrieving %s/%s\n", dir ? dir : "", file);
1.1 millert 1521:
1.4 millert 1522: if (dirhasglob) {
1523: snprintf(rempath, sizeof(rempath), "%s/%s", dir, file);
1524: file = rempath;
1525: }
1526:
1527: /* Fetch the file(s). */
1.10 deraadt 1528: xargc = 2;
1.1 millert 1529: xargv[0] = "get";
1530: xargv[1] = file;
1531: xargv[2] = NULL;
1.4 millert 1532: if (dirhasglob || filehasglob) {
1533: int ointeractive;
1534:
1535: ointeractive = interactive;
1536: interactive = 0;
1537: xargv[0] = "mget";
1.78 martynas 1538: #ifndef SMALL
1539: if (resume) {
1540: xargc = 3;
1541: xargv[1] = "-c";
1542: xargv[2] = file;
1543: xargv[3] = NULL;
1544: }
1545: #endif /* !SMALL */
1.10 deraadt 1546: mget(xargc, xargv);
1.5 millert 1547: interactive = ointeractive;
1.10 deraadt 1548: } else {
1.17 millert 1549: if (outfile != NULL) {
1550: xargv[2] = outfile;
1551: xargv[3] = NULL;
1.10 deraadt 1552: xargc++;
1553: }
1.75 martynas 1554: #ifndef SMALL
1555: if (resume)
1556: reget(xargc, xargv);
1557: else
1.78 martynas 1558: #endif /* !SMALL */
1.75 martynas 1559: get(xargc, xargv);
1.10 deraadt 1560: }
1.1 millert 1561:
1.4 millert 1562: if ((code / 100) != COMPLETE)
1.1 millert 1563: rval = argpos + 1;
1564: }
1565: if (connected && rval != -1)
1566: disconnect(0, NULL);
1567: return (rval);
1.37 heko 1568: }
1569:
1570: char *
1.50 deraadt 1571: urldecode(const char *str)
1.37 heko 1572: {
1.53 deraadt 1573: char *ret, c;
1574: int i, reallen;
1.37 heko 1575:
1.53 deraadt 1576: if (str == NULL)
1577: return NULL;
1.205 claudio 1578: if ((ret = malloc(strlen(str) + 1)) == NULL)
1.53 deraadt 1579: err(1, "Can't allocate memory for URL decoding");
1580: for (i = 0, reallen = 0; str[i] != '\0'; i++, reallen++, ret++) {
1581: c = str[i];
1582: if (c == '+') {
1583: *ret = ' ';
1584: continue;
1585: }
1.61 deraadt 1586:
1587: /* Cannot use strtol here because next char
1588: * after %xx may be a digit.
1589: */
1.205 claudio 1590: if (c == '%' && isxdigit((unsigned char)str[i + 1]) &&
1591: isxdigit((unsigned char)str[i + 2])) {
1592: *ret = hextochar(&str[i + 1]);
1593: i += 2;
1.53 deraadt 1594: continue;
1595: }
1596: *ret = c;
1597: }
1598: *ret = '\0';
1599:
1.205 claudio 1600: return ret - reallen;
1.123 guenther 1601: }
1602:
1.177 jca 1603: static char *
1.123 guenther 1604: recode_credentials(const char *userinfo)
1605: {
1606: char *ui, *creds;
1607: size_t ulen, credsize;
1608:
1609: /* url-decode the user and pass */
1610: ui = urldecode(userinfo);
1611:
1612: ulen = strlen(ui);
1613: credsize = (ulen + 2) / 3 * 4 + 1;
1614: creds = malloc(credsize);
1615: if (creds == NULL)
1616: errx(1, "out of memory");
1617: if (b64_ntop(ui, ulen, creds, credsize) == -1)
1618: errx(1, "error in base64 encoding");
1619: free(ui);
1620: return (creds);
1.37 heko 1621: }
1622:
1.177 jca 1623: static char
1.50 deraadt 1624: hextochar(const char *str)
1.37 heko 1625: {
1.143 guenther 1626: unsigned char c, ret;
1.37 heko 1627:
1.53 deraadt 1628: c = str[0];
1629: ret = c;
1630: if (isalpha(c))
1631: ret -= isupper(c) ? 'A' - 10 : 'a' - 10;
1632: else
1633: ret -= '0';
1634: ret *= 16;
1635:
1636: c = str[1];
1637: ret += c;
1638: if (isalpha(c))
1639: ret -= isupper(c) ? 'A' - 10 : 'a' - 10;
1640: else
1641: ret -= '0';
1642: return ret;
1.25 itojun 1643: }
1644:
1645: int
1.50 deraadt 1646: isurl(const char *p)
1.25 itojun 1647: {
1.27 millert 1648:
1.26 deraadt 1649: if (strncasecmp(p, FTP_URL, sizeof(FTP_URL) - 1) == 0 ||
1650: strncasecmp(p, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
1.154 deraadt 1651: #ifndef NOSSL
1.61 deraadt 1652: strncasecmp(p, HTTPS_URL, sizeof(HTTPS_URL) - 1) == 0 ||
1.154 deraadt 1653: #endif /* !NOSSL */
1.27 millert 1654: strncasecmp(p, FILE_URL, sizeof(FILE_URL) - 1) == 0 ||
1655: strstr(p, ":/"))
1656: return (1);
1657: return (0);
1.173 jca 1658: }
1.184 jca 1659:
1660: #ifndef SMALL
1661: static int
1662: ftp_printf(FILE *fp, const char *fmt, ...)
1663: {
1664: va_list ap;
1665: int ret;
1666:
1667: va_start(ap, fmt);
1668: ret = vfprintf(fp, fmt, ap);
1669: va_end(ap);
1670:
1671: if (debug) {
1672: va_start(ap, fmt);
1673: vfprintf(ttyout, fmt, ap);
1674: va_end(ap);
1675: }
1676:
1677: return ret;
1678: }
1679: #endif /* !SMALL */
1.173 jca 1680:
1.177 jca 1681: static void
1.189 jca 1682: ftp_close(FILE **fin, struct tls **tls, int *fd)
1.173 jca 1683: {
1684: #ifndef NOSSL
1685: int ret;
1686:
1687: if (*tls != NULL) {
1688: if (tls_session_fd != -1)
1689: dprintf(STDERR_FILENO, "tls session resumed: %s\n",
1690: tls_conn_session_resumed(*tls) ? "yes" : "no");
1691: do {
1692: ret = tls_close(*tls);
1693: } while (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT);
1694: tls_free(*tls);
1695: *tls = NULL;
1696: }
1.176 jca 1697: if (*fd != -1) {
1698: close(*fd);
1699: *fd = -1;
1700: }
1.173 jca 1701: #endif
1702: if (*fin != NULL) {
1703: fclose(*fin);
1704: *fin = NULL;
1705: }
1.61 deraadt 1706: }
1707:
1.177 jca 1708: static const char *
1.176 jca 1709: sockerror(struct tls *tls)
1710: {
1711: int save_errno = errno;
1.154 deraadt 1712: #ifndef NOSSL
1.176 jca 1713: if (tls != NULL) {
1714: const char *tlserr = tls_error(tls);
1715: if (tlserr != NULL)
1716: return tlserr;
1.139 bluhm 1717: }
1.176 jca 1718: #endif
1719: return strerror(save_errno);
1.61 deraadt 1720: }
1721:
1.176 jca 1722: #ifndef NOSSL
1.177 jca 1723: static int
1.81 espie 1724: proxy_connect(int socket, char *host, char *cookie)
1.61 deraadt 1725: {
1.66 ray 1726: int l;
1.61 deraadt 1727: char buf[1024];
1.192 yasuoka 1728: char *connstr, *hosttail, *port;
1.61 deraadt 1729:
1730: if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL &&
1731: (hosttail[1] == '\0' || hosttail[1] == ':')) {
1732: host++;
1733: *hosttail++ = '\0';
1734: } else
1735: hosttail = host;
1736:
1.179 deraadt 1737: port = strrchr(hosttail, ':'); /* find portnum */
1.61 deraadt 1738: if (port != NULL)
1739: *port++ = '\0';
1740: if (!port)
1741: port = "443";
1742:
1.81 espie 1743: if (cookie) {
1744: l = asprintf(&connstr, "CONNECT %s:%s HTTP/1.1\r\n"
1745: "Proxy-Authorization: Basic %s\r\n%s\r\n\r\n",
1746: host, port, cookie, HTTP_USER_AGENT);
1747: } else {
1748: l = asprintf(&connstr, "CONNECT %s:%s HTTP/1.1\r\n%s\r\n\r\n",
1749: host, port, HTTP_USER_AGENT);
1750: }
1751:
1.66 ray 1752: if (l == -1)
1.61 deraadt 1753: errx(1, "Could not allocate memory to assemble connect string!");
1.80 martynas 1754: #ifndef SMALL
1.68 ray 1755: if (debug)
1756: printf("%s", connstr);
1.80 martynas 1757: #endif /* !SMALL */
1.66 ray 1758: if (write(socket, connstr, l) != l)
1.68 ray 1759: err(1, "Could not send connect string");
1.192 yasuoka 1760: read(socket, &buf, sizeof(buf)); /* only proxy header XXX: error handling? */
1.71 ray 1761: free(connstr);
1.61 deraadt 1762: return(200);
1.176 jca 1763: }
1764:
1.177 jca 1765: static int
1.176 jca 1766: stdio_tls_write_wrapper(void *arg, const char *buf, int len)
1767: {
1768: struct tls *tls = arg;
1769: ssize_t ret;
1770:
1771: do {
1772: ret = tls_write(tls, buf, len);
1773: } while (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT);
1774:
1775: return ret;
1776: }
1777:
1.177 jca 1778: static int
1.176 jca 1779: stdio_tls_read_wrapper(void *arg, char *buf, int len)
1780: {
1781: struct tls *tls = arg;
1782: ssize_t ret;
1783:
1784: do {
1785: ret = tls_read(tls, buf, len);
1786: } while (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT);
1787:
1788: return ret;
1.61 deraadt 1789: }
1.158 jca 1790: #endif /* !NOSSL */
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