void progressmeter(int flag) { static off_t lastsize; off_t cursize; struct timeval now, wait; #ifndef NO_PROGRESS struct timeval td; off_t abbrevsize, bytespersec; double elapsed; int ratio, i, remaining, barlength; /* * Work variables for progress bar. * * XXX: if the format of the progress bar changes * (especially the number of characters in the * `static' portion of it), be sure to update * these appropriately. */ #endif size_t len; char buf[256]; /* workspace for progress bar */ #ifndef NO_PROGRESS #define BAROVERHEAD 45 /* non `*' portion of progress bar */ /* * stars should contain at least * sizeof(buf) - BAROVERHEAD entries */ static const char stars[] = "*****************************************************************************" "*****************************************************************************" "*****************************************************************************"; #endif if (flag == -1) { (void)gettimeofday(&start, NULL); lastupdate = start; lastsize = restart_point; } (void)gettimeofday(&now, NULL); cursize = bytes + restart_point; timersub(&now, &lastupdate, &wait); if (cursize > lastsize) { lastupdate = now; lastsize = cursize; wait.tv_sec = 0; } else { #ifndef STANDALONE_PROGRESS if (quit_time > 0 && wait.tv_sec > quit_time) { len = snprintf(buf, sizeof(buf), "\r\n%s: " "transfer aborted because stalled for %lu sec.\r\n", getprogname(), (unsigned long)wait.tv_sec); (void)write(fileno(ttyout), buf, len); alarmtimer(0); (void)xsignal(SIGALRM, SIG_DFL); siglongjmp(toplevel, 1); } #endif /* !STANDALONE_PROGRESS */ } /* * Always set the handler even if we are not the foreground process. */ #ifdef STANDALONE_PROGRESS if (progress) { #else if (quit_time > 0 || progress) { #endif /* !STANDALONE_PROGRESS */ if (flag == -1) { (void)xsignal_restart(SIGALRM, updateprogressmeter, 1); alarmtimer(1); /* set alarm timer for 1 Hz */ } else if (flag == 1) { alarmtimer(0); (void)xsignal(SIGALRM, SIG_DFL); } } #ifndef NO_PROGRESS if (!progress) return; len = 0; /* * print progress bar only if we are foreground process. */ if (! foregroundproc()) return; len += snprintf(buf + len, BUFLEFT, "\r"); if (prefix) len += snprintf(buf + len, BUFLEFT, "%s", prefix); if (filesize > 0) { ratio = (int)((double)cursize * 100.0 / (double)filesize); ratio = MAX(ratio, 0); ratio = MIN(ratio, 100); len += snprintf(buf + len, BUFLEFT, "%3d%% ", ratio); /* * calculate the length of the `*' bar, ensuring that * the number of stars won't exceed the buffer size */ barlength = MIN((int)(sizeof(buf) - 1), ttywidth) - BAROVERHEAD; if (prefix) barlength -= (int)strlen(prefix); if (barlength > 0) { i = barlength * ratio / 100; len += snprintf(buf + len, BUFLEFT, "|%.*s%*s|", i, stars, (int)(barlength - i), ""); } } abbrevsize = cursize; for (i = 0; abbrevsize >= 100000 && i < NSUFFIXES; i++) abbrevsize >>= 10; if (i == NSUFFIXES) i--; len += snprintf(buf + len, BUFLEFT, " " LLFP("5") " %-3s ", (LLT)abbrevsize, suffixes[i]); timersub(&now, &start, &td); elapsed = td.tv_sec + (td.tv_usec / 1000000.0); bytespersec = 0; if (bytes > 0) { bytespersec = bytes; if (elapsed > 0.0) bytespersec /= elapsed; } for (i = 1; bytespersec >= 1024000 && i < NSUFFIXES; i++) bytespersec >>= 10; len += snprintf(buf + len, BUFLEFT, " " LLFP("3") ".%02d %.2sB/s ", (LLT)(bytespersec / 1024), (int)((bytespersec % 1024) * 100 / 1024), suffixes[i]); if (filesize > 0) { if (bytes <= 0 || elapsed <= 0.0 || cursize > filesize) { len += snprintf(buf + len, BUFLEFT, " --:-- ETA"); } else if (wait.tv_sec >= STALLTIME) { len += snprintf(buf + len, BUFLEFT, " - stalled -"); } else { remaining = (int) ((filesize - restart_point) / (bytes / elapsed) - elapsed); if (remaining >= 100 * SECSPERHOUR) len += snprintf(buf + len, BUFLEFT, " --:-- ETA"); else { i = remaining / SECSPERHOUR; if (i) len += snprintf(buf + len, BUFLEFT, "%2d:", i); else len += snprintf(buf + len, BUFLEFT, " "); i = remaining % SECSPERHOUR; len += snprintf(buf + len, BUFLEFT, "%02d:%02d ETA", i / 60, i % 60); } } } if (flag == 1) len += snprintf(buf + len, BUFLEFT, "\n"); (void)write(fileno(ttyout), buf, len); #endif /* !NO_PROGRESS */ } #ifndef STANDALONE_PROGRESS /* * Display transfer statistics. * Requires start to be initialised by progressmeter(-1), * direction to be defined by xfer routines, and filesize and bytes * to be updated by xfer routines * If siginfo is nonzero, an ETA is displayed, and the output goes to stderr * instead of ttyout. */ void ptransfer(int siginfo) { struct timeval now, td, wait; double elapsed; off_t bytespersec; int remaining, hh, i; size_t len; char buf[256]; /* Work variable for transfer status. */ if (!verbose && !progress && !siginfo) return; (void)gettimeofday(&now, NULL); timersub(&now, &start, &td); elapsed = td.tv_sec + (td.tv_usec / 1000000.0); bytespersec = 0; if (bytes > 0) { bytespersec = bytes; if (elapsed > 0.0) bytespersec /= elapsed; } len = 0; len += snprintf(buf + len, BUFLEFT, LLF " byte%s %s in ", (LLT)bytes, bytes == 1 ? "" : "s", direction); remaining = (int)elapsed; if (remaining > SECSPERDAY) { int days; days = remaining / SECSPERDAY; remaining %= SECSPERDAY; len += snprintf(buf + len, BUFLEFT, "%d day%s ", days, days == 1 ? "" : "s"); } hh = remaining / SECSPERHOUR; remaining %= SECSPERHOUR; if (hh) len += snprintf(buf + len, BUFLEFT, "%2d:", hh); len += snprintf(buf + len, BUFLEFT, "%02d:%02d ", remaining / 60, remaining % 60); for (i = 1; bytespersec >= 1024000 && i < NSUFFIXES; i++) bytespersec >>= 10; if (i == NSUFFIXES) i--; len += snprintf(buf + len, BUFLEFT, "(" LLF ".%02d %.2sB/s)", (LLT)(bytespersec / 1024), (int)((bytespersec % 1024) * 100 / 1024), suffixes[i]); if (siginfo && bytes > 0 && elapsed > 0.0 && filesize >= 0 && bytes + restart_point <= filesize) { remaining = (int)((filesize - restart_point) / (bytes / elapsed) - elapsed); hh = remaining / SECSPERHOUR; remaining %= SECSPERHOUR; len += snprintf(buf + len, BUFLEFT, " ETA: "); if (hh) len += snprintf(buf + len, BUFLEFT, "%2d:", hh); len += snprintf(buf + len, BUFLEFT, "%02d:%02d", remaining / 60, remaining % 60); timersub(&now, &lastupdate, &wait); if (wait.tv_sec >= STALLTIME) len += snprintf(buf + len, BUFLEFT, " (stalled)"); } len += snprintf(buf + len, BUFLEFT, "\n"); (void)write(siginfo ? STDERR_FILENO : fileno(ttyout), buf, len); } /* * SIG{INFO,QUIT} handler to print transfer stats if a transfer is in progress */ void psummary(int notused) { int oerrno = errno; if (bytes > 0) { if (fromatty) write(fileno(ttyout), "\n", 1); ptransfer(1); } errno = oerrno; }
void recvrequest(const char *cmd, char *volatile local, char *remote, const char *lmode, int printnames) { FILE *volatile fout, *volatile din = 0; int (*volatile closefunc)(FILE *); void (*volatile oldintp)(int); void (*volatile oldintr)(int); volatile int is_retr, tcrflag, bare_lfs = 0; static unsigned bufsize; static char *buf; volatile long bytes = 0, hashbytes = HASHBYTES; register int c, d; struct timeval start, stop; struct stat st; is_retr = strcmp(cmd, "RETR") == 0; if (is_retr && verbose && printnames) { if (local && *local != '-') printf("local: %s ", local); if (remote) printf("remote: %s\n", remote); } if (proxy && is_retr) { proxtrans(cmd, local, remote); return; } closefunc = NULL; oldintr = NULL; oldintp = NULL; tcrflag = !crflag && is_retr; if (sigsetjmp(recvabort, 1)) { while (cpend) { (void) getreply(0); } if (data >= 0) { (void) close(data); data = -1; } if (oldintr) (void) signal(SIGINT, oldintr); code = -1; return; } oldintr = signal(SIGINT, abortrecv); if (strcmp(local, "-") && *local != '|') { if (access(local, W_OK) < 0) { char *dir = rindex(local, '/'); if (errno != ENOENT && errno != EACCES) { fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); (void) signal(SIGINT, oldintr); code = -1; return; } if (dir != NULL) *dir = 0; d = access(dir ? local : ".", W_OK); if (dir != NULL) *dir = '/'; if (d < 0) { fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); (void) signal(SIGINT, oldintr); code = -1; return; } if (!runique && errno == EACCES && chmod(local, 0600) < 0) { fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); /* * Believe it or not, this was actually * repeated in the original source. */ (void) signal(SIGINT, oldintr); /*(void) signal(SIGINT, oldintr);*/ code = -1; return; } if (runique && errno == EACCES && (local = gunique(local)) == NULL) { (void) signal(SIGINT, oldintr); code = -1; return; } } else if (runique && (local = gunique(local)) == NULL) { (void) signal(SIGINT, oldintr); code = -1; return; } } if (!is_retr) { if (curtype != TYPE_A) changetype(TYPE_A, 0); } else if (curtype != type) { changetype(type, 0); } if (initconn()) { (void) signal(SIGINT, oldintr); code = -1; return; } if (sigsetjmp(recvabort, 1)) goto abort; if (is_retr && restart_point && command("REST %ld", (long) restart_point) != CONTINUE) return; if (remote) { if (command("%s %s", cmd, remote) != PRELIM) { (void) signal(SIGINT, oldintr); return; } } else { if (command("%s", cmd) != PRELIM) { (void) signal(SIGINT, oldintr); return; } } din = dataconn("r"); if (din == NULL) goto abort; if (strcmp(local, "-") == 0) fout = stdout; else if (*local == '|') { oldintp = signal(SIGPIPE, SIG_IGN); fout = popen(local + 1, "w"); if (fout == NULL) { perror(local+1); goto abort; } closefunc = pclose; } else { fout = fopen(local, lmode); if (fout == NULL) { fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); goto abort; } closefunc = fclose; } if (fstat(fileno(fout), &st) < 0 || st.st_blksize == 0) st.st_blksize = BUFSIZ; if (st.st_blksize > bufsize) { if (buf) (void) free(buf); buf = malloc((unsigned)st.st_blksize); if (buf == NULL) { perror("malloc"); bufsize = 0; goto abort; } bufsize = st.st_blksize; } (void) gettimeofday(&start, (struct timezone *)0); switch (curtype) { case TYPE_I: case TYPE_L: if (restart_point && lseek(fileno(fout), (long) restart_point, L_SET) < 0) { fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); if (closefunc != NULL) (*closefunc)(fout); return; } errno = d = 0; while ((c = read(fileno(din), buf, bufsize)) > 0) { if ((d = write(fileno(fout), buf, c)) != c) break; bytes += c; if (hash && is_retr) { while (bytes >= hashbytes) { (void) putchar('#'); hashbytes += HASHBYTES; } (void) fflush(stdout); } if (tick && (bytes >= hashbytes) && is_retr) { (void) printf("\rBytes transferred: %ld", bytes); (void) fflush(stdout); while (bytes >= hashbytes) hashbytes += TICKBYTES; } } if (hash && bytes > 0) { if (bytes < HASHBYTES) (void) putchar('#'); (void) putchar('\n'); (void) fflush(stdout); } if (tick && is_retr) { (void) printf("\rBytes transferred: %ld\n", bytes); (void) fflush(stdout); } if (c < 0) { if (errno != EPIPE) perror("netin"); bytes = -1; } if (d < c) { if (d < 0) fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); else fprintf(stderr, "%s: short write\n", local); } break; case TYPE_A: if (restart_point) { register int i, n, ch; if (fseek(fout, 0L, L_SET) < 0) goto done; n = restart_point; for (i = 0; i++ < n;) { if ((ch = getc(fout)) == EOF) goto done; if (ch == '\n') i++; } if (fseek(fout, 0L, L_INCR) < 0) { done: fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); if (closefunc != NULL) (*closefunc)(fout); return; } } while ((c = getc(din)) != EOF) { if (c == '\n') bare_lfs++; while (c == '\r') { while (hash && (bytes >= hashbytes) && is_retr) { (void) putchar('#'); (void) fflush(stdout); hashbytes += HASHBYTES; } if (tick && (bytes >= hashbytes) && is_retr) { printf("\rBytes transferred: %ld", bytes); fflush(stdout); while (bytes >= hashbytes) hashbytes += TICKBYTES; } bytes++; if ((c = getc(din)) != '\n' || tcrflag) { if (ferror(fout)) goto break2; (void) putc('\r', fout); if (c == '\0') { bytes++; goto contin2; } if (c == EOF) goto contin2; } } (void) putc(c, fout); bytes++; contin2: ; } break2: if (hash && is_retr) { if (bytes < hashbytes) (void) putchar('#'); (void) putchar('\n'); (void) fflush(stdout); } if (tick && is_retr) { (void) printf("\rBytes transferred: %ld\n", bytes); (void) fflush(stdout); } if (bare_lfs) { printf("WARNING! %d bare linefeeds received in ASCII mode\n", bare_lfs); printf("File may not have transferred correctly.\n"); } if (ferror(din)) { if (errno != EPIPE) perror("netin"); bytes = -1; } if (ferror(fout)) fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); break; } if (closefunc != NULL) (*closefunc)(fout); (void) signal(SIGINT, oldintr); if (oldintp) (void) signal(SIGPIPE, oldintp); (void) gettimeofday(&stop, (struct timezone *)0); (void) fclose(din); /* closes data as well, so discard it */ data = -1; (void) getreply(0); if (bytes > 0 && is_retr) ptransfer("received", bytes, &start, &stop); return; abort: /* abort using RFC959 recommended IP,SYNC sequence */ (void) gettimeofday(&stop, (struct timezone *)0); if (oldintp) (void) signal(SIGPIPE, oldintp); (void) signal(SIGINT, SIG_IGN); if (!cpend) { code = -1; (void) signal(SIGINT, oldintr); return; } abort_remote(din); code = -1; if (closefunc != NULL && fout != NULL) (*closefunc)(fout); if (din) { (void) fclose(din); } if (data >= 0) { /* if it just got closed with din, again won't hurt */ (void) close(data); data = -1; } if (bytes > 0) ptransfer("received", bytes, &start, &stop); (void) signal(SIGINT, oldintr); }
/* * Retrieve URL, via the proxy in $proxyvar if necessary. * Modifies the string argument given. * Returns -1 on failure, 0 on success */ static int url_get(const char *origline, const char *proxyenv, const char *outfile) { char pbuf[NI_MAXSERV], hbuf[NI_MAXHOST], *cp, *portnum, *path, ststr[4]; char *hosttail, *cause = "unknown", *newline, *host, *port, *buf = NULL; char *epath, *redirurl, *loctail, *h, *p; int error, i, isftpurl = 0, isfileurl = 0, isredirect = 0, rval = -1; struct addrinfo hints, *res0, *res, *ares = NULL; const char * volatile savefile; char * volatile proxyurl = NULL; char *cookie = NULL; volatile int s = -1, out; volatile sig_t oldintr, oldinti; FILE *fin = NULL; off_t hashbytes; const char *errstr; ssize_t len, wlen; #ifndef SMALL char *sslpath = NULL, *sslhost = NULL; char *locbase, *full_host = NULL, *auth = NULL; const char *scheme; int ishttpsurl = 0; SSL_CTX *ssl_ctx = NULL; #endif /* !SMALL */ SSL *ssl = NULL; int status; int save_errno; const size_t buflen = 128 * 1024; direction = "received"; newline = strdup(origline); if (newline == NULL) errx(1, "Can't allocate memory to parse URL"); if (strncasecmp(newline, HTTP_URL, sizeof(HTTP_URL) - 1) == 0) { host = newline + sizeof(HTTP_URL) - 1; #ifndef SMALL scheme = HTTP_URL; #endif /* !SMALL */ } else if (strncasecmp(newline, FTP_URL, sizeof(FTP_URL) - 1) == 0) { host = newline + sizeof(FTP_URL) - 1; isftpurl = 1; #ifndef SMALL scheme = FTP_URL; #endif /* !SMALL */ } else if (strncasecmp(newline, FILE_URL, sizeof(FILE_URL) - 1) == 0) { host = newline + sizeof(FILE_URL) - 1; isfileurl = 1; #ifndef SMALL scheme = FILE_URL; } else if (strncasecmp(newline, HTTPS_URL, sizeof(HTTPS_URL) - 1) == 0) { host = newline + sizeof(HTTPS_URL) - 1; ishttpsurl = 1; scheme = HTTPS_URL; #endif /* !SMALL */ } else errx(1, "url_get: Invalid URL '%s'", newline); if (isfileurl) { path = host; } else { path = strchr(host, '/'); /* Find path */ if (EMPTYSTRING(path)) { if (outfile) { /* No slash, but */ path=strchr(host,'\0'); /* we have outfile. */ goto noslash; } if (isftpurl) goto noftpautologin; warnx("No `/' after host (use -o): %s", origline); goto cleanup_url_get; } *path++ = '\0'; if (EMPTYSTRING(path) && !outfile) { if (isftpurl) goto noftpautologin; warnx("No filename after host (use -o): %s", origline); goto cleanup_url_get; } } noslash: #ifndef SMALL /* * Look for auth header in host, since now host does not * contain the path. Basic auth from RFC 2617, valid * characters for path are in RFC 3986 section 3.3. */ if (proxyenv == NULL && (!strcmp(scheme, HTTP_URL) || !strcmp(scheme, HTTPS_URL))) { if ((p = strchr(host, '@')) != NULL) { size_t authlen = (strlen(host) + 5) * 4 / 3; *p = 0; /* Kill @ */ if ((auth = malloc(authlen)) == NULL) err(1, "Can't allocate memory for " "authorization"); if (b64_ntop(host, strlen(host), auth, authlen) == -1) errx(1, "error in base64 encoding"); host = p + 1; } } #endif /* SMALL */ if (outfile) savefile = outfile; else { if (path[strlen(path) - 1] == '/') /* Consider no file */ savefile = NULL; /* after dir invalid. */ else savefile = basename(path); } if (EMPTYSTRING(savefile)) { if (isftpurl) goto noftpautologin; warnx("No filename after directory (use -o): %s", origline); goto cleanup_url_get; } #ifndef SMALL if (resume && pipeout) { warnx("can't append to stdout"); goto cleanup_url_get; } #endif /* !SMALL */ if (!isfileurl && proxyenv != NULL) { /* use proxy */ #ifndef SMALL if (ishttpsurl) { sslpath = strdup(path); sslhost = strdup(host); if (! sslpath || ! sslhost) errx(1, "Can't allocate memory for https path/host."); } #endif /* !SMALL */ proxyurl = strdup(proxyenv); if (proxyurl == NULL) errx(1, "Can't allocate memory for proxy URL."); if (strncasecmp(proxyurl, HTTP_URL, sizeof(HTTP_URL) - 1) == 0) host = proxyurl + sizeof(HTTP_URL) - 1; else if (strncasecmp(proxyurl, FTP_URL, sizeof(FTP_URL) - 1) == 0) host = proxyurl + sizeof(FTP_URL) - 1; else { warnx("Malformed proxy URL: %s", proxyenv); goto cleanup_url_get; } if (EMPTYSTRING(host)) { warnx("Malformed proxy URL: %s", proxyenv); goto cleanup_url_get; } if (*--path == '\0') *path = '/'; /* add / back to real path */ path = strchr(host, '/'); /* remove trailing / on host */ if (!EMPTYSTRING(path)) *path++ = '\0'; /* i guess this ++ is useless */ path = strchr(host, '@'); /* look for credentials in proxy */ if (!EMPTYSTRING(path)) { *path = '\0'; cookie = strchr(host, ':'); if (EMPTYSTRING(cookie)) { warnx("Malformed proxy URL: %s", proxyenv); goto cleanup_url_get; } cookie = malloc(COOKIE_MAX_LEN); if (cookie == NULL) errx(1, "out of memory"); if (b64_ntop(host, strlen(host), cookie, COOKIE_MAX_LEN) == -1) errx(1, "error in base64 encoding"); *path = '@'; /* restore @ in proxyurl */ /* * This removes the password from proxyurl, * filling with stars */ for (host = 1 + strchr(proxyurl + 5, ':'); *host != '@'; host++) *host = '*'; host = path + 1; } path = newline; } if (isfileurl) { struct stat st; s = open(path, O_RDONLY); if (s == -1) { warn("Can't open file %s", path); goto cleanup_url_get; } if (fstat(s, &st) == -1) filesize = -1; else filesize = st.st_size; /* Open the output file. */ if (!pipeout) { #ifndef SMALL if (resume) out = open(savefile, O_CREAT | O_WRONLY | O_APPEND, 0666); else #endif /* !SMALL */ out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666); if (out < 0) { warn("Can't open %s", savefile); goto cleanup_url_get; } } else out = fileno(stdout); #ifndef SMALL if (resume) { if (fstat(out, &st) == -1) { warn("Can't fstat %s", savefile); goto cleanup_url_get; } if (lseek(s, st.st_size, SEEK_SET) == -1) { warn("Can't lseek %s", path); goto cleanup_url_get; } restart_point = st.st_size; } #endif /* !SMALL */ /* Trap signals */ oldintr = NULL; oldinti = NULL; if (setjmp(httpabort)) { if (oldintr) (void)signal(SIGINT, oldintr); if (oldinti) (void)signal(SIGINFO, oldinti); goto cleanup_url_get; } oldintr = signal(SIGINT, abortfile); bytes = 0; hashbytes = mark; progressmeter(-1, path); if ((buf = malloc(buflen)) == NULL) errx(1, "Can't allocate memory for transfer buffer"); /* Finally, suck down the file. */ i = 0; oldinti = signal(SIGINFO, psummary); while ((len = read(s, buf, buflen)) > 0) { bytes += len; for (cp = buf; len > 0; len -= i, cp += i) { if ((i = write(out, cp, len)) == -1) { warn("Writing %s", savefile); signal(SIGINFO, oldinti); goto cleanup_url_get; } else if (i == 0) break; } if (hash && !progress) { while (bytes >= hashbytes) { (void)putc('#', ttyout); hashbytes += mark; } (void)fflush(ttyout); } } signal(SIGINFO, oldinti); if (hash && !progress && bytes > 0) { if (bytes < mark) (void)putc('#', ttyout); (void)putc('\n', ttyout); (void)fflush(ttyout); } if (len != 0) { warn("Reading from file"); goto cleanup_url_get; } progressmeter(1, NULL); if (verbose) ptransfer(0); (void)signal(SIGINT, oldintr); rval = 0; goto cleanup_url_get; } if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL && (hosttail[1] == '\0' || hosttail[1] == ':')) { host++; *hosttail++ = '\0'; #ifndef SMALL if (asprintf(&full_host, "[%s]", host) == -1) errx(1, "Cannot allocate memory for hostname"); #endif /* !SMALL */ } else hosttail = host; portnum = strrchr(hosttail, ':'); /* find portnum */ if (portnum != NULL) *portnum++ = '\0'; #ifndef SMALL if (full_host == NULL) if ((full_host = strdup(host)) == NULL) errx(1, "Cannot allocate memory for hostname"); if (debug) fprintf(ttyout, "host %s, port %s, path %s, " "save as %s, auth %s.\n", host, portnum, path, savefile, auth); #endif /* !SMALL */ memset(&hints, 0, sizeof(hints)); hints.ai_family = family; hints.ai_socktype = SOCK_STREAM; #ifndef SMALL port = portnum ? portnum : (ishttpsurl ? httpsport : httpport); #else /* !SMALL */ port = portnum ? portnum : httpport; #endif /* !SMALL */ error = getaddrinfo(host, port, &hints, &res0); /* * If the services file is corrupt/missing, fall back * on our hard-coded defines. */ if (error == EAI_SERVICE && port == httpport) { snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT); error = getaddrinfo(host, pbuf, &hints, &res0); #ifndef SMALL } else if (error == EAI_SERVICE && port == httpsport) { snprintf(pbuf, sizeof(pbuf), "%d", HTTPS_PORT); error = getaddrinfo(host, pbuf, &hints, &res0); #endif /* !SMALL */ } if (error) { warnx("%s: %s", gai_strerror(error), host); goto cleanup_url_get; } #ifndef SMALL if (srcaddr) { hints.ai_flags |= AI_NUMERICHOST; error = getaddrinfo(srcaddr, NULL, &hints, &ares); if (error) { warnx("%s: %s", gai_strerror(error), srcaddr); goto cleanup_url_get; } } #endif /* !SMALL */ s = -1; for (res = res0; res; res = res->ai_next) { if (getnameinfo(res->ai_addr, res->ai_addrlen, hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0) strlcpy(hbuf, "(unknown)", sizeof(hbuf)); if (verbose) fprintf(ttyout, "Trying %s...\n", hbuf); s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); if (s == -1) { cause = "socket"; continue; } #ifndef SMALL if (srcaddr) { if (ares->ai_family != res->ai_family) { close(s); s = -1; errno = EINVAL; cause = "bind"; continue; } if (bind(s, ares->ai_addr, ares->ai_addrlen) < 0) { save_errno = errno; close(s); errno = save_errno; s = -1; cause = "bind"; continue; } } #endif /* !SMALL */ again: if (connect(s, res->ai_addr, res->ai_addrlen) < 0) { if (errno == EINTR) goto again; save_errno = errno; close(s); errno = save_errno; s = -1; cause = "connect"; continue; } /* get port in numeric */ if (getnameinfo(res->ai_addr, res->ai_addrlen, NULL, 0, pbuf, sizeof(pbuf), NI_NUMERICSERV) == 0) port = pbuf; else port = NULL; #ifndef SMALL if (proxyenv && sslhost) proxy_connect(s, sslhost, cookie); #endif /* !SMALL */ break; } freeaddrinfo(res0); #ifndef SMALL if (srcaddr) freeaddrinfo(ares); #endif /* !SMALL */ if (s < 0) { warn("%s", cause); goto cleanup_url_get; } #ifndef SMALL if (ishttpsurl) { union { struct in_addr ip4; struct in6_addr ip6; } addrbuf; if (proxyenv && sslpath) { ishttpsurl = 0; proxyurl = NULL; path = sslpath; } SSL_library_init(); SSL_load_error_strings(); ssl_ctx = SSL_CTX_new(SSLv23_client_method()); if (ssl_ctx == NULL) { ERR_print_errors_fp(ttyout); goto cleanup_url_get; } if (ssl_verify) { if (ssl_ca_file == NULL && ssl_ca_path == NULL) ssl_ca_file = _PATH_SSL_CAFILE; if (SSL_CTX_load_verify_locations(ssl_ctx, ssl_ca_file, ssl_ca_path) != 1) { ERR_print_errors_fp(ttyout); goto cleanup_url_get; } SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, NULL); if (ssl_verify_depth != -1) SSL_CTX_set_verify_depth(ssl_ctx, ssl_verify_depth); } if (ssl_ciphers != NULL && SSL_CTX_set_cipher_list(ssl_ctx, ssl_ciphers) == -1) { ERR_print_errors_fp(ttyout); goto cleanup_url_get; } ssl = SSL_new(ssl_ctx); if (ssl == NULL) { ERR_print_errors_fp(ttyout); goto cleanup_url_get; } if (SSL_set_fd(ssl, s) == 0) { ERR_print_errors_fp(ttyout); goto cleanup_url_get; } /* * RFC4366 (SNI): Literal IPv4 and IPv6 addresses are not * permitted in "HostName". */ if (inet_pton(AF_INET, host, &addrbuf) != 1 && inet_pton(AF_INET6, host, &addrbuf) != 1) { if (SSL_set_tlsext_host_name(ssl, host) == 0) { ERR_print_errors_fp(ttyout); goto cleanup_url_get; } } if (SSL_connect(ssl) <= 0) { ERR_print_errors_fp(ttyout); goto cleanup_url_get; } if (ssl_verify) { X509 *cert; cert = SSL_get_peer_certificate(ssl); if (cert == NULL) { fprintf(ttyout, "%s: no server certificate\n", getprogname()); goto cleanup_url_get; } if (ssl_check_hostname(cert, host) != 0) { fprintf(ttyout, "%s: host `%s' not present in" " server certificate\n", getprogname(), host); goto cleanup_url_get; } X509_free(cert); } } else { fin = fdopen(s, "r+"); } #else /* !SMALL */ fin = fdopen(s, "r+"); #endif /* !SMALL */ if (verbose) fprintf(ttyout, "Requesting %s", origline); /* * Construct and send the request. Proxy requests don't want leading /. */ #ifndef SMALL cookie_get(host, path, ishttpsurl, &buf); #endif /* !SMALL */ epath = url_encode(path); if (proxyurl) { if (verbose) fprintf(ttyout, " (via %s)\n", proxyurl); /* * Host: directive must use the destination host address for * the original URI (path). We do not attach it at this moment. */ if (cookie) ftp_printf(fin, ssl, "GET %s HTTP/1.0\r\n" "Proxy-Authorization: Basic %s%s\r\n%s\r\n\r\n", epath, cookie, buf ? buf : "", HTTP_USER_AGENT); else ftp_printf(fin, ssl, "GET %s HTTP/1.0\r\n%s%s\r\n\r\n", epath, buf ? buf : "", HTTP_USER_AGENT); } else { #ifndef SMALL if (resume) { struct stat stbuf; if (stat(savefile, &stbuf) == 0) restart_point = stbuf.st_size; else restart_point = 0; } if (auth) { ftp_printf(fin, ssl, "GET /%s %s\r\nAuthorization: Basic %s\r\nHost: ", epath, restart_point ? "HTTP/1.1\r\nConnection: close" : "HTTP/1.0", auth); free(auth); auth = NULL; } else #endif /* SMALL */ ftp_printf(fin, ssl, "GET /%s %s\r\nHost: ", epath, #ifndef SMALL restart_point ? "HTTP/1.1\r\nConnection: close" : #endif /* !SMALL */ "HTTP/1.0"); if (strchr(host, ':')) { /* * strip off scoped address portion, since it's * local to node */ h = strdup(host); if (h == NULL) errx(1, "Can't allocate memory."); if ((p = strchr(h, '%')) != NULL) *p = '\0'; ftp_printf(fin, ssl, "[%s]", h); free(h); } else ftp_printf(fin, ssl, "%s", host); /* * Send port number only if it's specified and does not equal * 80. Some broken HTTP servers get confused if you explicitly * send them the port number. */ #ifndef SMALL if (port && strcmp(port, (ishttpsurl ? "443" : "80")) != 0) ftp_printf(fin, ssl, ":%s", port); if (restart_point) ftp_printf(fin, ssl, "\r\nRange: bytes=%lld-", (long long)restart_point); #else /* !SMALL */ if (port && strcmp(port, "80") != 0) ftp_printf(fin, ssl, ":%s", port); #endif /* !SMALL */ ftp_printf(fin, ssl, "\r\n%s%s\r\n\r\n", buf ? buf : "", HTTP_USER_AGENT); if (verbose) fprintf(ttyout, "\n"); } free(epath); #ifndef SMALL free(buf); #endif /* !SMALL */ buf = NULL; if (fin != NULL && fflush(fin) == EOF) { warn("Writing HTTP request"); goto cleanup_url_get; } if ((buf = ftp_readline(fin, ssl, &len)) == NULL) { warn("Receiving HTTP reply"); goto cleanup_url_get; } while (len > 0 && (buf[len-1] == '\r' || buf[len-1] == '\n')) buf[--len] = '\0'; #ifndef SMALL if (debug) fprintf(ttyout, "received '%s'\n", buf); #endif /* !SMALL */ cp = strchr(buf, ' '); if (cp == NULL) goto improper; else cp++; strlcpy(ststr, cp, sizeof(ststr)); status = strtonum(ststr, 200, 416, &errstr); if (errstr) { warnx("Error retrieving file: %s", cp); goto cleanup_url_get; } switch (status) { case 200: /* OK */ #ifndef SMALL /* * When we request a partial file, and we receive an HTTP 200 * it is a good indication that the server doesn't support * range requests, and is about to send us the entire file. * If the restart_point == 0, then we are not actually * requesting a partial file, and an HTTP 200 is appropriate. */ if (resume && restart_point != 0) { warnx("Server does not support resume."); restart_point = resume = 0; } /* FALLTHROUGH */ case 206: /* Partial Content */ #endif /* !SMALL */ break; case 301: /* Moved Permanently */ case 302: /* Found */ case 303: /* See Other */ case 307: /* Temporary Redirect */ isredirect++; if (redirect_loop++ > 10) { warnx("Too many redirections requested"); goto cleanup_url_get; } break; #ifndef SMALL case 416: /* Requested Range Not Satisfiable */ warnx("File is already fully retrieved."); goto cleanup_url_get; #endif /* !SMALL */ default: warnx("Error retrieving file: %s", cp); goto cleanup_url_get; } /* * Read the rest of the header. */ free(buf); filesize = -1; for (;;) { if ((buf = ftp_readline(fin, ssl, &len)) == NULL) { warn("Receiving HTTP reply"); goto cleanup_url_get; } while (len > 0 && (buf[len-1] == '\r' || buf[len-1] == '\n')) buf[--len] = '\0'; if (len == 0) break; #ifndef SMALL if (debug) fprintf(ttyout, "received '%s'\n", buf); #endif /* !SMALL */ /* Look for some headers */ cp = buf; #define CONTENTLEN "Content-Length: " if (strncasecmp(cp, CONTENTLEN, sizeof(CONTENTLEN) - 1) == 0) { size_t s; cp += sizeof(CONTENTLEN) - 1; if ((s = strcspn(cp, " \t"))) *(cp+s) = 0; filesize = strtonum(cp, 0, LLONG_MAX, &errstr); if (errstr != NULL) goto improper; #ifndef SMALL if (restart_point) filesize += restart_point; #endif /* !SMALL */ #define LOCATION "Location: " } else if (isredirect && strncasecmp(cp, LOCATION, sizeof(LOCATION) - 1) == 0) { cp += sizeof(LOCATION) - 1; if (strstr(cp, "://") == NULL) { #ifdef SMALL errx(1, "Relative redirect not supported"); #else /* SMALL */ if (*cp == '/') { locbase = NULL; cp++; } else { locbase = strdup(path); if (locbase == NULL) errx(1, "Can't allocate memory" " for location base"); loctail = strchr(locbase, '#'); if (loctail != NULL) *loctail = '\0'; loctail = strchr(locbase, '?'); if (loctail != NULL) *loctail = '\0'; loctail = strrchr(locbase, '/'); if (loctail == NULL) { free(locbase); locbase = NULL; } else loctail[1] = '\0'; } /* Contruct URL from relative redirect */ if (asprintf(&redirurl, "%s%s%s%s/%s%s", scheme, full_host, portnum ? ":" : "", portnum ? portnum : "", locbase ? locbase : "", cp) == -1) errx(1, "Cannot build " "redirect URL"); free(locbase); #endif /* SMALL */ } else if ((redirurl = strdup(cp)) == NULL) errx(1, "Cannot allocate memory for URL"); loctail = strchr(redirurl, '#'); if (loctail != NULL) *loctail = '\0'; if (verbose) fprintf(ttyout, "Redirected to %s\n", redirurl); if (fin != NULL) fclose(fin); else if (s != -1) close(s); rval = url_get(redirurl, proxyenv, savefile); free(redirurl); goto cleanup_url_get; } free(buf); } /* Open the output file. */ if (!pipeout) { #ifndef SMALL if (resume) out = open(savefile, O_CREAT | O_WRONLY | O_APPEND, 0666); else #endif /* !SMALL */ out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666); if (out < 0) { warn("Can't open %s", savefile); goto cleanup_url_get; } } else out = fileno(stdout); /* Trap signals */ oldintr = NULL; oldinti = NULL; if (setjmp(httpabort)) { if (oldintr) (void)signal(SIGINT, oldintr); if (oldinti) (void)signal(SIGINFO, oldinti); goto cleanup_url_get; } oldintr = signal(SIGINT, aborthttp); bytes = 0; hashbytes = mark; progressmeter(-1, path); free(buf); /* Finally, suck down the file. */ if ((buf = malloc(buflen)) == NULL) errx(1, "Can't allocate memory for transfer buffer"); i = 0; len = 1; oldinti = signal(SIGINFO, psummary); while (len > 0) { len = ftp_read(fin, ssl, buf, buflen); bytes += len; for (cp = buf, wlen = len; wlen > 0; wlen -= i, cp += i) { if ((i = write(out, cp, wlen)) == -1) { warn("Writing %s", savefile); signal(SIGINFO, oldinti); goto cleanup_url_get; } else if (i == 0) break; } if (hash && !progress) { while (bytes >= hashbytes) { (void)putc('#', ttyout); hashbytes += mark; } (void)fflush(ttyout); } } signal(SIGINFO, oldinti); if (hash && !progress && bytes > 0) { if (bytes < mark) (void)putc('#', ttyout); (void)putc('\n', ttyout); (void)fflush(ttyout); } if (len != 0) { warn("Reading from socket"); goto cleanup_url_get; } progressmeter(1, NULL); if ( #ifndef SMALL !resume && #endif /* !SMALL */ filesize != -1 && len == 0 && bytes != filesize) { if (verbose) fputs("Read short file.\n", ttyout); goto cleanup_url_get; } if (verbose) ptransfer(0); (void)signal(SIGINT, oldintr); rval = 0; goto cleanup_url_get; noftpautologin: warnx( "Auto-login using ftp URLs isn't supported when using $ftp_proxy"); goto cleanup_url_get; improper: warnx("Improper response from %s", host); cleanup_url_get: #ifndef SMALL if (ssl) { SSL_shutdown(ssl); SSL_free(ssl); } free(full_host); free(auth); #endif /* !SMALL */ if (fin != NULL) fclose(fin); else if (s != -1) close(s); free(buf); free(proxyurl); free(newline); free(cookie); return (rval); }
void sendrequest(const char *cmd, char *local, char *remote, int printnames) { struct stat st; struct timeval start, stop; register int c, d; FILE *volatile fin, *volatile dout = 0; int (*volatile closefunc)(FILE *); void (*volatile oldintr)(int); void (*volatile oldintp)(int); volatile long bytes = 0, hashbytes = HASHBYTES; char buf[BUFSIZ], *bufp; const char *volatile lmode; if (verbose && printnames) { if (local && *local != '-') printf("local: %s ", local); if (remote) printf("remote: %s\n", remote); } if (proxy) { proxtrans(cmd, local, remote); return; } if (curtype != type) changetype(type, 0); closefunc = NULL; oldintr = NULL; oldintp = NULL; lmode = "w"; if (sigsetjmp(sendabort, 1)) { while (cpend) { (void) getreply(0); } if (data >= 0) { (void) close(data); data = -1; } if (oldintr) (void) signal(SIGINT,oldintr); if (oldintp) (void) signal(SIGPIPE,oldintp); code = -1; return; } oldintr = signal(SIGINT, abortsend); if (strcmp(local, "-") == 0) fin = stdin; else if (*local == '|') { oldintp = signal(SIGPIPE,SIG_IGN); fin = popen(local + 1, "r"); if (fin == NULL) { perror(local + 1); (void) signal(SIGINT, oldintr); (void) signal(SIGPIPE, oldintp); code = -1; return; } closefunc = pclose; } else { fin = fopen(local, "r"); if (fin == NULL) { fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); (void) signal(SIGINT, oldintr); code = -1; return; } closefunc = fclose; /* It is very convenient to be able to send block and character special files too */ #ifdef ONLY_SEND_PLAIN_FILES if (fstat(fileno(fin), &st) < 0 || (st.st_mode&S_IFMT) != S_IFREG) { fprintf(stdout, "%s: not a plain file.\n", local); (void) signal(SIGINT, oldintr); fclose(fin); code = -1; return; } #endif } if (initconn()) { (void) signal(SIGINT, oldintr); if (oldintp) (void) signal(SIGPIPE, oldintp); code = -1; if (closefunc != NULL) (*closefunc)(fin); return; } if (sigsetjmp(sendabort, 1)) goto abort; if (restart_point && (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) { if (fseek(fin, (long) restart_point, 0) < 0) { fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); restart_point = 0; if (closefunc != NULL) (*closefunc)(fin); return; } if (command("REST %ld", (long) restart_point) != CONTINUE) { restart_point = 0; if (closefunc != NULL) (*closefunc)(fin); return; } restart_point = 0; lmode = "r+w"; } if (remote) { if (command("%s %s", cmd, remote) != PRELIM) { (void) signal(SIGINT, oldintr); if (oldintp) (void) signal(SIGPIPE, oldintp); if (closefunc != NULL) (*closefunc)(fin); return; } } else if (command("%s", cmd) != PRELIM) { (void) signal(SIGINT, oldintr); if (oldintp) (void) signal(SIGPIPE, oldintp); if (closefunc != NULL) (*closefunc)(fin); return; } dout = dataconn(lmode); if (dout == NULL) goto abort; (void) gettimeofday(&start, (struct timezone *)0); oldintp = signal(SIGPIPE, SIG_IGN); switch (curtype) { case TYPE_I: case TYPE_L: errno = d = 0; while ((c = read(fileno(fin), buf, sizeof (buf))) > 0) { bytes += c; for (bufp = buf; c > 0; c -= d, bufp += d) if ((d = write(fileno(dout), bufp, c)) <= 0) break; if (hash) { while (bytes >= hashbytes) { (void) putchar('#'); hashbytes += HASHBYTES; } (void) fflush(stdout); } if (tick && (bytes >= hashbytes)) { printf("\rBytes transferred: %ld", bytes); (void) fflush(stdout); while (bytes >= hashbytes) hashbytes += TICKBYTES; } } if (hash && (bytes > 0)) { if (bytes < HASHBYTES) (void) putchar('#'); (void) putchar('\n'); (void) fflush(stdout); } if (tick) { (void) printf("\rBytes transferred: %ld\n", bytes); (void) fflush(stdout); } if (c < 0) fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); if (d < 0) { if (errno != EPIPE) perror("netout"); bytes = -1; } break; case TYPE_A: while ((c = getc(fin)) != EOF) { if (c == '\n') { while (hash && (bytes >= hashbytes)) { (void) putchar('#'); (void) fflush(stdout); hashbytes += HASHBYTES; } if (tick && (bytes >= hashbytes)) { (void) printf("\rBytes transferred: %ld", bytes); (void) fflush(stdout); while (bytes >= hashbytes) hashbytes += TICKBYTES; } if (ferror(dout)) break; (void) putc('\r', dout); bytes++; } (void) putc(c, dout); bytes++; /* if (c == '\r') { */ /* (void) putc('\0', dout); (* this violates rfc */ /* bytes++; */ /* } */ } if (hash) { if (bytes < hashbytes) (void) putchar('#'); (void) putchar('\n'); (void) fflush(stdout); } if (tick) { (void) printf("\rBytes transferred: %ld\n", bytes); (void) fflush(stdout); } if (ferror(fin)) fprintf(stderr, "local: %s: %s\n", local, strerror(errno)); if (ferror(dout)) { if (errno != EPIPE) perror("netout"); bytes = -1; } break; } (void) gettimeofday(&stop, (struct timezone *)0); if (closefunc != NULL) (*closefunc)(fin); (void) fclose(dout); /* closes data as well, so discard it */ data = -1; (void) getreply(0); (void) signal(SIGINT, oldintr); if (oldintp) (void) signal(SIGPIPE, oldintp); if (bytes > 0) ptransfer("sent", bytes, &start, &stop); return; abort: (void) gettimeofday(&stop, (struct timezone *)0); (void) signal(SIGINT, oldintr); if (oldintp) (void) signal(SIGPIPE, oldintp); if (!cpend) { code = -1; return; } if (dout) { (void) fclose(dout); } if (data >= 0) { /* if it just got closed with dout, again won't hurt */ (void) close(data); data = -1; } (void) getreply(0); code = -1; if (closefunc != NULL && fin != NULL) (*closefunc)(fin); if (bytes > 0) ptransfer("sent", bytes, &start, &stop); }