*
*/
-/* We want libc to give us xxx64 functions also */
-/* http://www.unix.org/version2/whatsnew/lfs20mar.html */
-#define _LARGEFILE64_SOURCE 1
-
-#include "busybox.h"
-#include <getopt.h> /* for struct option */
+#include "libbb.h"
struct host_info {
// May be used if we ever will want to free() all xstrdup()s...
/* char *allocated; */
- char *host;
- int port;
- char *path;
- int is_ftp;
- char *user;
+ const char *path;
+ const char *user;
+ char *host;
+ int port;
+ smallint is_ftp;
};
-static void parse_url(char *url, struct host_info *h);
-static FILE *open_socket(len_and_sockaddr *lsa);
-static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
-static int ftpcmd(const char *s1, const char *s2, FILE *fp, char *buf);
-/* Globals (can be accessed from signal handlers */
-static off_t content_len; /* Content-length of the file */
-static off_t beg_range; /* Range at which continue begins */
+/* Globals (can be accessed from signal handlers) */
+struct globals {
+ off_t content_len; /* Content-length of the file */
+ off_t beg_range; /* Range at which continue begins */
#if ENABLE_FEATURE_WGET_STATUSBAR
-static off_t transferred; /* Number of bytes transferred so far */
+ off_t lastsize;
+ off_t totalsize;
+ off_t transferred; /* Number of bytes transferred so far */
+ const char *curfile; /* Name of current file being transferred */
+ unsigned lastupdate_sec;
+ unsigned start_sec;
#endif
-static int chunked; /* chunked transfer encoding */
+ smallint chunked; /* chunked transfer encoding */
+};
+#define G (*(struct globals*)&bb_common_bufsiz1)
+struct BUG_G_too_big {
+ char BUG_G_too_big[sizeof(G) <= COMMON_BUFSIZE ? 1 : -1];
+};
+#define content_len (G.content_len )
+#define beg_range (G.beg_range )
+#define lastsize (G.lastsize )
+#define totalsize (G.totalsize )
+#define transferred (G.transferred )
+#define curfile (G.curfile )
+#define lastupdate_sec (G.lastupdate_sec )
+#define start_sec (G.start_sec )
+#define chunked (G.chunked )
+#define INIT_G() do { } while (0)
+
+
#if ENABLE_FEATURE_WGET_STATUSBAR
-static void progressmeter(int flag);
-static const char *curfile; /* Name of current file being transferred */
-static struct timeval start; /* Time a transfer started */
enum {
STALLTIME = 5 /* Seconds when xfer considered "stalled" */
};
-#else
-static void progressmeter(int flag) {}
+
+static int getttywidth(void)
+{
+ int width;
+ get_terminal_width_height(0, &width, NULL);
+ return width;
+}
+
+static void progressmeter(int flag)
+{
+ /* We can be called from signal handler */
+ int save_errno = errno;
+ off_t abbrevsize;
+ unsigned since_last_update, elapsed;
+ unsigned ratio;
+ int barlength, i;
+
+ if (flag == -1) { /* first call to progressmeter */
+ start_sec = monotonic_sec();
+ lastupdate_sec = start_sec;
+ lastsize = 0;
+ totalsize = content_len + beg_range; /* as content_len changes.. */
+ }
+
+ ratio = 100;
+ if (totalsize != 0 && !chunked) {
+ /* long long helps to have it working even if !LFS */
+ ratio = (unsigned) (100ULL * (transferred+beg_range) / totalsize);
+ if (ratio > 100) ratio = 100;
+ }
+
+ fprintf(stderr, "\r%-20.20s%4d%% ", curfile, ratio);
+
+ barlength = getttywidth() - 49;
+ if (barlength > 0) {
+ /* god bless gcc for variable arrays :) */
+ i = barlength * ratio / 100;
+ {
+ char buf[i+1];
+ memset(buf, '*', i);
+ buf[i] = '\0';
+ fprintf(stderr, "|%s%*s|", buf, barlength - i, "");
+ }
+ }
+ i = 0;
+ abbrevsize = transferred + beg_range;
+ while (abbrevsize >= 100000) {
+ i++;
+ abbrevsize >>= 10;
+ }
+ /* see http://en.wikipedia.org/wiki/Tera */
+ fprintf(stderr, "%6d%c ", (int)abbrevsize, " kMGTPEZY"[i]);
+
+// Nuts! Ain't it easier to update progress meter ONLY when we transferred++?
+
+ elapsed = monotonic_sec();
+ since_last_update = elapsed - lastupdate_sec;
+ if (transferred > lastsize) {
+ lastupdate_sec = elapsed;
+ lastsize = transferred;
+ if (since_last_update >= STALLTIME) {
+ /* We "cut off" these seconds from elapsed time
+ * by adjusting start time */
+ start_sec += since_last_update;
+ }
+ since_last_update = 0; /* we are un-stalled now */
+ }
+ elapsed -= start_sec; /* now it's "elapsed since start" */
+
+ if (since_last_update >= STALLTIME) {
+ fprintf(stderr, " - stalled -");
+ } else {
+ off_t to_download = totalsize - beg_range;
+ if (transferred <= 0 || (int)elapsed <= 0 || transferred > to_download || chunked) {
+ fprintf(stderr, "--:--:-- ETA");
+ } else {
+ /* to_download / (transferred/elapsed) - elapsed: */
+ int eta = (int) ((unsigned long long)to_download*elapsed/transferred - elapsed);
+ /* (long long helps to have working ETA even if !LFS) */
+ i = eta % 3600;
+ fprintf(stderr, "%02d:%02d:%02d ETA", eta / 3600, i / 60, i % 60);
+ }
+ }
+
+ if (flag == 0) {
+ /* last call to progressmeter */
+ alarm(0);
+ transferred = 0;
+ fputc('\n', stderr);
+ } else {
+ if (flag == -1) { /* first call to progressmeter */
+ signal_SA_RESTART_empty_mask(SIGALRM, progressmeter);
+ }
+ alarm(1);
+ }
+
+ errno = save_errno;
+}
+/* Original copyright notice which applies to the CONFIG_FEATURE_WGET_STATUSBAR stuff,
+ * much of which was blatantly stolen from openssh. */
+/*-
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
+ * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
+ *
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#else /* FEATURE_WGET_STATUSBAR */
+
+static ALWAYS_INLINE void progressmeter(int flag ATTRIBUTE_UNUSED) { }
+
#endif
-/* Read NMEMB elements of SIZE bytes into PTR from STREAM. Returns the
- * number of elements read, and a short count if an eof or non-interrupt
- * error is encountered. */
-static size_t safe_fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
+
+/* Read NMEMB bytes into PTR from STREAM. Returns the number of bytes read,
+ * and a short count if an eof or non-interrupt error is encountered. */
+static size_t safe_fread(void *ptr, size_t nmemb, FILE *stream)
{
- size_t ret = 0;
+ size_t ret;
+ char *p = (char*)ptr;
do {
clearerr(stream);
- ret += fread((char *)ptr + (ret * size), size, nmemb - ret, stream);
- } while (ret < nmemb && ferror(stream) && errno == EINTR);
+ ret = fread(p, 1, nmemb, stream);
+ p += ret;
+ nmemb -= ret;
+ } while (nmemb && ferror(stream) && errno == EINTR);
- return ret;
+ return p - (char*)ptr;
}
-/* Read a line or SIZE - 1 bytes into S, whichever is less, from STREAM.
+/* Read a line or SIZE-1 bytes into S, whichever is less, from STREAM.
* Returns S, or NULL if an eof or non-interrupt error is encountered. */
static char *safe_fgets(char *s, int size, FILE *stream)
{
}
#if ENABLE_FEATURE_WGET_AUTHENTICATION
-/*
- * Base64-encode character string and return the string.
- */
-static char *base64enc(unsigned char *p, char *buf, int len)
+/* Base64-encode character string. buf is assumed to be char buf[512]. */
+static char *base64enc_512(char buf[512], const char *str)
{
- bb_uuencode(p, buf, len, bb_uuenc_tbl_base64);
+ unsigned len = strlen(str);
+ if (len > 512/4*3 - 10) /* paranoia */
+ len = 512/4*3 - 10;
+ bb_uuencode(buf, str, len, bb_uuenc_tbl_base64);
return buf;
}
#endif
-int wget_main(int argc, char **argv);
-int wget_main(int argc, char **argv)
+
+static FILE *open_socket(len_and_sockaddr *lsa)
+{
+ FILE *fp;
+
+ /* glibc 2.4 seems to try seeking on it - ??! */
+ /* hopefully it understands what ESPIPE means... */
+ fp = fdopen(xconnect_stream(lsa), "r+");
+ if (fp == NULL)
+ bb_perror_msg_and_die("fdopen");
+
+ return fp;
+}
+
+
+static int ftpcmd(const char *s1, const char *s2, FILE *fp, char *buf)
+{
+ int result;
+ if (s1) {
+ if (!s2) s2 = "";
+ fprintf(fp, "%s%s\r\n", s1, s2);
+ fflush(fp);
+ }
+
+ do {
+ char *buf_ptr;
+
+ if (fgets(buf, 510, fp) == NULL) {
+ bb_perror_msg_and_die("error getting response");
+ }
+ buf_ptr = strstr(buf, "\r\n");
+ if (buf_ptr) {
+ *buf_ptr = '\0';
+ }
+ } while (!isdigit(buf[0]) || buf[3] != ' ');
+
+ buf[3] = '\0';
+ result = xatoi_u(buf);
+ buf[3] = ' ';
+ return result;
+}
+
+
+static void parse_url(char *src_url, struct host_info *h)
+{
+ char *url, *p, *sp;
+
+ /* h->allocated = */ url = xstrdup(src_url);
+
+ if (strncmp(url, "http://", 7) == 0) {
+ h->port = bb_lookup_port("http", "tcp", 80);
+ h->host = url + 7;
+ h->is_ftp = 0;
+ } else if (strncmp(url, "ftp://", 6) == 0) {
+ h->port = bb_lookup_port("ftp", "tcp", 21);
+ h->host = url + 6;
+ h->is_ftp = 1;
+ } else
+ bb_error_msg_and_die("not an http or ftp url: %s", url);
+
+ // FYI:
+ // "Real" wget 'http://busybox.net?var=a/b' sends this request:
+ // 'GET /?var=a/b HTTP 1.0'
+ // and saves 'index.html?var=a%2Fb' (we save 'b')
+ // wget 'http://busybox.net?login=john@doe':
+ // request: 'GET /?login=john@doe HTTP/1.0'
+ // saves: 'index.html?login=john@doe' (we save '?login=john@doe')
+ // wget 'http://busybox.net#test/test':
+ // request: 'GET / HTTP/1.0'
+ // saves: 'index.html' (we save 'test')
+ //
+ // We also don't add unique .N suffix if file exists...
+ sp = strchr(h->host, '/');
+ p = strchr(h->host, '?'); if (!sp || (p && sp > p)) sp = p;
+ p = strchr(h->host, '#'); if (!sp || (p && sp > p)) sp = p;
+ if (!sp) {
+ h->path = "";
+ } else if (*sp == '/') {
+ *sp = '\0';
+ h->path = sp + 1;
+ } else { // '#' or '?'
+ // http://busybox.net?login=john@doe is a valid URL
+ // memmove converts to:
+ // http:/busybox.nett?login=john@doe...
+ memmove(h->host - 1, h->host, sp - h->host);
+ h->host--;
+ sp[-1] = '\0';
+ h->path = sp;
+ }
+
+ sp = strrchr(h->host, '@');
+ h->user = NULL;
+ if (sp != NULL) {
+ h->user = h->host;
+ *sp = '\0';
+ h->host = sp + 1;
+ }
+
+ sp = h->host;
+}
+
+
+static char *gethdr(char *buf, size_t bufsiz, FILE *fp /*, int *istrunc*/)
+{
+ char *s, *hdrval;
+ int c;
+
+ /* *istrunc = 0; */
+
+ /* retrieve header line */
+ if (fgets(buf, bufsiz, fp) == NULL)
+ return NULL;
+
+ /* see if we are at the end of the headers */
+ for (s = buf; *s == '\r'; ++s)
+ continue;
+ if (*s == '\n')
+ return NULL;
+
+ /* convert the header name to lower case */
+ for (s = buf; isalnum(*s) || *s == '-' || *s == '.'; ++s)
+ *s = tolower(*s);
+
+ /* verify we are at the end of the header name */
+ if (*s != ':')
+ bb_error_msg_and_die("bad header line: %s", buf);
+
+ /* locate the start of the header value */
+ *s++ = '\0';
+ hdrval = skip_whitespace(s);
+
+ /* locate the end of header */
+ while (*s && *s != '\r' && *s != '\n')
+ ++s;
+
+ /* end of header found */
+ if (*s) {
+ *s = '\0';
+ return hdrval;
+ }
+
+ /* Rats! The buffer isn't big enough to hold the entire header value. */
+ while (c = getc(fp), c != EOF && c != '\n')
+ continue;
+ /* *istrunc = 1; */
+ return hdrval;
+}
+
+
+int wget_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int wget_main(int argc ATTRIBUTE_UNUSED, char **argv)
{
char buf[512];
struct host_info server, target;
len_and_sockaddr *lsa;
- int n, status;
+ int status;
int port;
int try = 5;
unsigned opt;
- char *s;
+ char *str;
char *proxy = 0;
char *dir_prefix = NULL;
#if ENABLE_FEATURE_WGET_LONG_OPTIONS
char *extra_headers = NULL;
llist_t *headers_llist = NULL;
#endif
-
- /* server.allocated = target.allocated = NULL; */
-
FILE *sfp = NULL; /* socket to web/ftp server */
- FILE *dfp = NULL; /* socket to ftp server (data) */
- char *fname_out = NULL; /* where to direct output (-O) */
- int got_clen = 0; /* got content-length: from server */
+ FILE *dfp; /* socket to ftp server (data) */
+ char *fname_out; /* where to direct output (-O) */
+ bool got_clen = 0; /* got content-length: from server */
int output_fd = -1;
- int use_proxy = 1; /* Use proxies if env vars are set */
+ bool use_proxy = 1; /* Use proxies if env vars are set */
const char *proxy_flag = "on"; /* Use proxies if env vars are set */
- const char *user_agent = "Wget";/* Content of the "User-Agent" header field */
+ const char *user_agent = "Wget";/* "User-Agent" header field */
- /*
- * Crack command line.
- */
+ static const char keywords[] ALIGN1 =
+ "content-length\0""transfer-encoding\0""chunked\0""location\0";
+ enum {
+ KEY_content_length = 1, KEY_transfer_encoding, KEY_chunked, KEY_location
+ };
enum {
WGET_OPT_CONTINUE = 0x1,
WGET_OPT_SPIDER = 0x2,
WGET_OPT_HEADER = 0x100,
};
#if ENABLE_FEATURE_WGET_LONG_OPTIONS
- static const struct option wget_long_options[] = {
- // name, has_arg, flag, val
- { "continue", no_argument, NULL, 'c' },
- { "spider", no_argument, NULL, 's' },
- { "quiet", no_argument, NULL, 'q' },
- { "output-document", required_argument, NULL, 'O' },
- { "directory-prefix", required_argument, NULL, 'P' },
- { "proxy", required_argument, NULL, 'Y' },
- { "user-agent", required_argument, NULL, 'U' },
- { "passive-ftp", no_argument, NULL, 0xff },
- { "header", required_argument, NULL, 0xfe },
- { 0, 0, 0, 0 }
- };
- applet_long_options = wget_long_options;
+ static const char wget_longopts[] ALIGN1 =
+ /* name, has_arg, val */
+ "continue\0" No_argument "c"
+ "spider\0" No_argument "s"
+ "quiet\0" No_argument "q"
+ "output-document\0" Required_argument "O"
+ "directory-prefix\0" Required_argument "P"
+ "proxy\0" Required_argument "Y"
+ "user-agent\0" Required_argument "U"
+ "passive-ftp\0" No_argument "\xff"
+ "header\0" Required_argument "\xfe"
+ ;
#endif
+
+ INIT_G();
+
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ applet_long_options = wget_longopts;
+#endif
+ /* server.allocated = target.allocated = NULL; */
opt_complementary = "-1" USE_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
- opt = getopt32(argc, argv, "csqO:P:Y:U:",
+ opt = getopt32(argv, "csqO:P:Y:U:",
&fname_out, &dir_prefix,
&proxy_flag, &user_agent
USE_FEATURE_WGET_LONG_OPTIONS(, &headers_llist)
);
if (strcmp(proxy_flag, "off") == 0) {
- /* Use the proxy if necessary. */
+ /* Use the proxy if necessary */
use_proxy = 0;
}
#if ENABLE_FEATURE_WGET_LONG_OPTIONS
server.host = target.host;
server.port = target.port;
- /*
- * Use the proxy if necessary.
- */
+ /* Use the proxy if necessary */
if (use_proxy) {
proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
if (proxy && *proxy) {
}
}
- /* Guess an output filename */
- if (!fname_out) {
- // Dirty hack. Needed because bb_get_last_path_component
- // will destroy trailing / by storing '\0' in last byte!
- if (!last_char_is(target.path, '/')) {
- fname_out = bb_get_last_path_component(target.path);
-#if ENABLE_FEATURE_WGET_STATUSBAR
- curfile = fname_out;
-#endif
- }
- if (!fname_out || !fname_out[0]) {
- /* bb_get_last_path_component writes
- * to last '/' only. We don't have one here... */
+ /* Guess an output filename, if there was no -O FILE */
+ if (!(opt & WGET_OPT_OUTNAME)) {
+ fname_out = bb_get_last_path_component_nostrip(target.path);
+ /* handle "wget http://kernel.org//" */
+ if (fname_out[0] == '/' || !fname_out[0])
fname_out = (char*)"index.html";
-#if ENABLE_FEATURE_WGET_STATUSBAR
- curfile = fname_out;
-#endif
- }
- if (dir_prefix != NULL)
+ /* -P DIR is considered only if there was no -O FILE */
+ if (dir_prefix)
fname_out = concat_path_file(dir_prefix, fname_out);
-#if ENABLE_FEATURE_WGET_STATUSBAR
} else {
- curfile = bb_get_last_path_component(fname_out);
-#endif
+ if (LONE_DASH(fname_out)) {
+ /* -O - */
+ output_fd = 1;
+ opt &= ~WGET_OPT_CONTINUE;
+ }
}
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ curfile = bb_get_last_path_component_nostrip(fname_out);
+#endif
+
/* Impossible?
if ((opt & WGET_OPT_CONTINUE) && !fname_out)
bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)"); */
- /*
- * Determine where to start transfer.
- */
- if (LONE_DASH(fname_out)) {
- output_fd = 1;
- opt &= ~WGET_OPT_CONTINUE;
- }
+ /* Determine where to start transfer */
if (opt & WGET_OPT_CONTINUE) {
output_fd = open(fname_out, O_WRONLY);
if (output_fd >= 0) {
lsa = xhost2sockaddr(server.host, server.port);
if (!(opt & WGET_OPT_QUIET)) {
fprintf(stderr, "Connecting to %s (%s)\n", server.host,
- xmalloc_sockaddr2dotted(&lsa->sa, lsa->len));
+ xmalloc_sockaddr2dotted(&lsa->u.sa));
/* We leak result of xmalloc_sockaddr2dotted */
}
* HTTP session
*/
do {
- got_clen = chunked = 0;
+ got_clen = 0;
+ chunked = 0;
if (!--try)
bb_error_msg_and_die("too many redirections");
- /*
- * Open socket to http server
- */
+ /* Open socket to http server */
if (sfp) fclose(sfp);
sfp = open_socket(lsa);
-
- /*
- * Send HTTP request.
- */
+
+ /* Send HTTP request. */
if (use_proxy) {
fprintf(sfp, "GET %stp://%s/%s HTTP/1.1\r\n",
target.is_ftp ? "f" : "ht", target.host,
#if ENABLE_FEATURE_WGET_AUTHENTICATION
if (target.user) {
- fprintf(sfp, "Authorization: Basic %s\r\n",
- base64enc((unsigned char*)target.user, buf, sizeof(buf)));
+ fprintf(sfp, "Proxy-Authorization: Basic %s\r\n"+6,
+ base64enc_512(buf, target.user));
}
if (use_proxy && server.user) {
fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
- base64enc((unsigned char*)server.user, buf, sizeof(buf)));
+ base64enc_512(buf, server.user));
}
#endif
if (fgets(buf, sizeof(buf), sfp) == NULL)
bb_error_msg_and_die("no response from server");
- s = buf;
- while (*s != '\0' && !isspace(*s)) ++s;
- s = skip_whitespace(s);
+ str = buf;
+ str = skip_non_whitespace(str);
+ str = skip_whitespace(str);
// FIXME: no error check
// xatou wouldn't work: "200 OK"
- status = atoi(s);
+ status = atoi(str);
switch (status) {
case 0:
case 100:
- while (gethdr(buf, sizeof(buf), sfp, &n) != NULL)
+ while (gethdr(buf, sizeof(buf), sfp /*, &n*/) != NULL)
/* eat all remaining headers */;
goto read_response;
case 200:
case 206:
if (beg_range)
break;
- /*FALLTHRU*/
+ /* fall through */
default:
/* Show first line only and kill any ESC tricks */
buf[strcspn(buf, "\n\r\x1b")] = '\0';
/*
* Retrieve HTTP headers.
*/
- while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
- if (strcasecmp(buf, "content-length") == 0) {
- content_len = BB_STRTOOFF(s, NULL, 10);
+ while ((str = gethdr(buf, sizeof(buf), sfp /*, &n*/)) != NULL) {
+ /* gethdr did already convert the "FOO:" string to lowercase */
+ smalluint key = index_in_strings(keywords, *&buf) + 1;
+ if (key == KEY_content_length) {
+ content_len = BB_STRTOOFF(str, NULL, 10);
if (errno || content_len < 0) {
- bb_error_msg_and_die("content-length %s is garbage", s);
+ bb_error_msg_and_die("content-length %s is garbage", str);
}
got_clen = 1;
continue;
}
- if (strcasecmp(buf, "transfer-encoding") == 0) {
- if (strcasecmp(s, "chunked") != 0)
- bb_error_msg_and_die("server wants to do %s transfer encoding", s);
+ if (key == KEY_transfer_encoding) {
+ if (index_in_strings(keywords, str_tolower(str)) + 1 != KEY_chunked)
+ bb_error_msg_and_die("transfer encoding '%s' is not supported", str);
chunked = got_clen = 1;
}
- if (strcasecmp(buf, "location") == 0) {
- if (s[0] == '/')
+ if (key == KEY_location) {
+ if (str[0] == '/')
/* free(target.allocated); */
- target.path = /* target.allocated = */ xstrdup(s+1);
+ target.path = /* target.allocated = */ xstrdup(str+1);
else {
- parse_url(s, &target);
+ parse_url(str, &target);
if (use_proxy == 0) {
server.host = target.host;
server.port = target.port;
* Splitting username:password pair,
* trying to log in
*/
- s = strchr(target.user, ':');
- if (s)
- *(s++) = '\0';
+ str = strchr(target.user, ':');
+ if (str)
+ *(str++) = '\0';
switch (ftpcmd("USER ", target.user, sfp, buf)) {
case 230:
break;
case 331:
- if (ftpcmd("PASS ", s, sfp, buf) == 230)
+ if (ftpcmd("PASS ", str, sfp, buf) == 230)
break;
- /* FALLTHRU (failed login) */
+ /* fall through (failed login) */
default:
bb_error_msg_and_die("ftp login: %s", buf+4);
}
// Response is "227 garbageN1,N2,N3,N4,P1,P2[)garbage]
// Server's IP is N1.N2.N3.N4 (we ignore it)
// Server's port for data connection is P1*256+P2
- s = strrchr(buf, ')');
- if (s) s[0] = '\0';
- s = strrchr(buf, ',');
- if (!s) goto pasv_error;
- port = xatou_range(s+1, 0, 255);
- *s = '\0';
- s = strrchr(buf, ',');
- if (!s) goto pasv_error;
- port += xatou_range(s+1, 0, 255) * 256;
+ str = strrchr(buf, ')');
+ if (str) str[0] = '\0';
+ str = strrchr(buf, ',');
+ if (!str) goto pasv_error;
+ port = xatou_range(str+1, 0, 255);
+ *str = '\0';
+ str = strrchr(buf, ',');
+ if (!str) goto pasv_error;
+ port += xatou_range(str+1, 0, 255) * 256;
set_nport(lsa, htons(port));
dfp = open_socket(lsa);
}
if (ftpcmd("RETR ", target.path, sfp, buf) > 150)
- bb_error_msg_and_die("bad response to RETR: %s", buf);
+ bb_error_msg_and_die("bad response to %s: %s", "RETR", buf);
}
+
if (opt & WGET_OPT_SPIDER) {
if (ENABLE_FEATURE_CLEAN_UP)
fclose(sfp);
- goto done;
+ return EXIT_SUCCESS;
}
/*
* Retrieve file
*/
- if (chunked) {
- fgets(buf, sizeof(buf), dfp);
- content_len = STRTOOFF(buf, NULL, 16);
- /* FIXME: error check?? */
- }
/* Do it before progressmeter (want to have nice error message) */
- if (output_fd < 0)
- output_fd = xopen(fname_out,
- O_WRONLY|O_CREAT|O_EXCL|O_TRUNC);
+ if (output_fd < 0) {
+ int o_flags = O_WRONLY | O_CREAT | O_TRUNC | O_EXCL;
+ /* compat with wget: -O FILE can overwrite */
+ if (opt & WGET_OPT_OUTNAME)
+ o_flags = O_WRONLY | O_CREAT | O_TRUNC;
+ output_fd = xopen(fname_out, o_flags);
+ }
if (!(opt & WGET_OPT_QUIET))
progressmeter(-1);
- do {
+ if (chunked)
+ goto get_clen;
+
+ /* Loops only if chunked */
+ while (1) {
while (content_len > 0 || !got_clen) {
+ int n;
unsigned rdsz = sizeof(buf);
+
if (content_len < sizeof(buf) && (chunked || got_clen))
rdsz = (unsigned)content_len;
- n = safe_fread(buf, 1, rdsz, dfp);
- if (n <= 0)
+ n = safe_fread(buf, rdsz, dfp);
+ if (n <= 0) {
+ if (ferror(dfp)) {
+ /* perror will not work: ferror doesn't set errno */
+ bb_error_msg_and_die(bb_msg_read_error);
+ }
break;
- if (full_write(output_fd, buf, n) != n) {
- bb_perror_msg_and_die(bb_msg_write_error);
}
+ xwrite(output_fd, buf, n);
#if ENABLE_FEATURE_WGET_STATUSBAR
transferred += n;
#endif
- if (got_clen) {
+ if (got_clen)
content_len -= n;
- }
}
- if (chunked) {
- safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
- safe_fgets(buf, sizeof(buf), dfp);
- content_len = STRTOOFF(buf, NULL, 16);
- /* FIXME: error check? */
- if (content_len == 0) {
- chunked = 0; /* all done! */
- }
- }
+ if (!chunked)
+ break;
- if (n == 0 && ferror(dfp)) {
- bb_perror_msg_and_die(bb_msg_read_error);
- }
- } while (chunked);
+ safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
+ get_clen:
+ safe_fgets(buf, sizeof(buf), dfp);
+ content_len = STRTOOFF(buf, NULL, 16);
+ /* FIXME: error check? */
+ if (content_len == 0)
+ break; /* all done! */
+ }
if (!(opt & WGET_OPT_QUIET))
- progressmeter(1);
+ progressmeter(0);
if ((use_proxy == 0) && target.is_ftp) {
fclose(dfp);
bb_error_msg_and_die("ftp error: %s", buf+4);
ftpcmd("QUIT", NULL, sfp, buf);
}
-done:
- exit(EXIT_SUCCESS);
-}
-
-
-static void parse_url(char *src_url, struct host_info *h)
-{
- char *url, *p, *sp;
-
- /* h->allocated = */ url = xstrdup(src_url);
-
- if (strncmp(url, "http://", 7) == 0) {
- h->port = bb_lookup_port("http", "tcp", 80);
- h->host = url + 7;
- h->is_ftp = 0;
- } else if (strncmp(url, "ftp://", 6) == 0) {
- h->port = bb_lookup_port("ftp", "tcp", 21);
- h->host = url + 6;
- h->is_ftp = 1;
- } else
- bb_error_msg_and_die("not an http or ftp url: %s", url);
-
- // FYI:
- // "Real" wget 'http://busybox.net?var=a/b' sends this request:
- // 'GET /?var=a/b HTTP 1.0'
- // and saves 'index.html?var=a%2Fb' (we save 'b')
- // wget 'http://busybox.net?login=john@doe':
- // request: 'GET /?login=john@doe HTTP/1.0'
- // saves: 'index.html?login=john@doe' (we save '?login=john@doe')
- // wget 'http://busybox.net#test/test':
- // request: 'GET / HTTP/1.0'
- // saves: 'index.html' (we save 'test')
- //
- // We also don't add unique .N suffix if file exists...
- sp = strchr(h->host, '/');
- p = strchr(h->host, '?'); if (!sp || (p && sp > p)) sp = p;
- p = strchr(h->host, '#'); if (!sp || (p && sp > p)) sp = p;
- if (!sp) {
- /* must be writable because of bb_get_last_path_component() */
- static char nullstr[] = "";
- h->path = nullstr;
- } else if (*sp == '/') {
- *sp = '\0';
- h->path = sp + 1;
- } else { // '#' or '?'
- // http://busybox.net?login=john@doe is a valid URL
- // memmove converts to:
- // http:/busybox.nett?login=john@doe...
- memmove(h->host-1, h->host, sp - h->host);
- h->host--;
- sp[-1] = '\0';
- h->path = sp;
- }
-
- sp = strrchr(h->host, '@');
- h->user = NULL;
- if (sp != NULL) {
- h->user = h->host;
- *sp = '\0';
- h->host = sp + 1;
- }
-
- sp = h->host;
-}
-
-
-static FILE *open_socket(len_and_sockaddr *lsa)
-{
- FILE *fp;
-
- /* glibc 2.4 seems to try seeking on it - ??! */
- /* hopefully it understands what ESPIPE means... */
- fp = fdopen(xconnect_stream(lsa), "r+");
- if (fp == NULL)
- bb_perror_msg_and_die("fdopen");
-
- return fp;
-}
-
-
-static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
-{
- char *s, *hdrval;
- int c;
-
- *istrunc = 0;
-
- /* retrieve header line */
- if (fgets(buf, bufsiz, fp) == NULL)
- return NULL;
-
- /* see if we are at the end of the headers */
- for (s = buf; *s == '\r'; ++s)
- ;
- if (s[0] == '\n')
- return NULL;
-
- /* convert the header name to lower case */
- for (s = buf; isalnum(*s) || *s == '-'; ++s)
- *s = tolower(*s);
-
- /* verify we are at the end of the header name */
- if (*s != ':')
- bb_error_msg_and_die("bad header line: %s", buf);
-
- /* locate the start of the header value */
- for (*s++ = '\0'; *s == ' ' || *s == '\t'; ++s)
- ;
- hdrval = s;
-
- /* locate the end of header */
- while (*s != '\0' && *s != '\r' && *s != '\n')
- ++s;
-
- /* end of header found */
- if (*s != '\0') {
- *s = '\0';
- return hdrval;
- }
-
- /* Rats! The buffer isn't big enough to hold the entire header value. */
- while (c = getc(fp), c != EOF && c != '\n')
- ;
- *istrunc = 1;
- return hdrval;
-}
-
-static int ftpcmd(const char *s1, const char *s2, FILE *fp, char *buf)
-{
- int result;
- if (s1) {
- if (!s2) s2 = "";
- fprintf(fp, "%s%s\r\n", s1, s2);
- fflush(fp);
- }
-
- do {
- char *buf_ptr;
-
- if (fgets(buf, 510, fp) == NULL) {
- bb_perror_msg_and_die("error getting response");
- }
- buf_ptr = strstr(buf, "\r\n");
- if (buf_ptr) {
- *buf_ptr = '\0';
- }
- } while (!isdigit(buf[0]) || buf[3] != ' ');
-
- buf[3] = '\0';
- result = xatoi_u(buf);
- buf[3] = ' ';
- return result;
-}
-
-#if ENABLE_FEATURE_WGET_STATUSBAR
-/* Stuff below is from BSD rcp util.c, as added to openshh.
- * Original copyright notice is retained at the end of this file.
- */
-static int
-getttywidth(void)
-{
- int width;
- get_terminal_width_height(0, &width, NULL);
- return width;
-}
-
-static void
-updateprogressmeter(int ignore)
-{
- int save_errno = errno;
-
- progressmeter(0);
- errno = save_errno;
-}
-
-static void alarmtimer(int iwait)
-{
- struct itimerval itv;
-
- itv.it_value.tv_sec = iwait;
- itv.it_value.tv_usec = 0;
- itv.it_interval = itv.it_value;
- setitimer(ITIMER_REAL, &itv, NULL);
-}
-
-
-static void
-progressmeter(int flag)
-{
- static struct timeval lastupdate;
- static off_t lastsize, totalsize;
-
- struct timeval now, td, tvwait;
- off_t abbrevsize;
- int elapsed, ratio, barlength, i;
- char buf[256];
-
- if (flag == -1) { /* first call to progressmeter */
- gettimeofday(&start, (struct timezone *) 0);
- lastupdate = start;
- lastsize = 0;
- totalsize = content_len + beg_range; /* as content_len changes.. */
- }
-
- gettimeofday(&now, (struct timezone *) 0);
- ratio = 100;
- if (totalsize != 0 && !chunked) {
- /* long long helps to have working ETA even if !LFS */
- ratio = (int) (100 * (unsigned long long)(transferred+beg_range) / totalsize);
- ratio = MIN(ratio, 100);
- }
-
- fprintf(stderr, "\r%-20.20s%4d%% ", curfile, ratio);
-
- barlength = getttywidth() - 51;
- if (barlength > 0 && barlength < sizeof(buf)) {
- i = barlength * ratio / 100;
- memset(buf, '*', i);
- memset(buf + i, ' ', barlength - i);
- buf[barlength] = '\0';
- fprintf(stderr, "|%s|", buf);
- }
- i = 0;
- abbrevsize = transferred + beg_range;
- while (abbrevsize >= 100000) {
- i++;
- abbrevsize >>= 10;
- }
- /* see http://en.wikipedia.org/wiki/Tera */
- fprintf(stderr, "%6d %c%c ", (int)abbrevsize, " KMGTPEZY"[i], i?'B':' ');
-
- timersub(&now, &lastupdate, &tvwait);
- if (transferred > lastsize) {
- lastupdate = now;
- lastsize = transferred;
- if (tvwait.tv_sec >= STALLTIME)
- timeradd(&start, &tvwait, &start);
- tvwait.tv_sec = 0;
- }
- timersub(&now, &start, &td);
- elapsed = td.tv_sec;
-
- if (tvwait.tv_sec >= STALLTIME) {
- fprintf(stderr, " - stalled -");
- } else {
- off_t to_download = totalsize - beg_range;
- if (transferred <= 0 || elapsed <= 0 || transferred > to_download || chunked) {
- fprintf(stderr, "--:--:-- ETA");
- } else {
- /* to_download / (transferred/elapsed) - elapsed: */
- int eta = (int) ((unsigned long long)to_download*elapsed/transferred - elapsed);
- /* (long long helps to have working ETA even if !LFS) */
- i = eta % 3600;
- fprintf(stderr, "%02d:%02d:%02d ETA", eta / 3600, i / 60, i % 60);
- }
- }
- if (flag == -1) { /* first call to progressmeter */
- struct sigaction sa;
- sa.sa_handler = updateprogressmeter;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- sigaction(SIGALRM, &sa, NULL);
- alarmtimer(1);
- } else if (flag == 1) { /* last call to progressmeter */
- alarmtimer(0);
- transferred = 0;
- putc('\n', stderr);
- }
+ return EXIT_SUCCESS;
}
-#endif
-
-/* Original copyright notice which applies to the CONFIG_FEATURE_WGET_STATUSBAR stuff,
- * much of which was blatantly stolen from openssh. */
-
-/*-
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
- * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
- *
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
projects / oweals / busybox.git / blobdiff