/* vi: set sw=4 ts=4: */
/*
- * wget - retrieve a file using HTTP
+ * wget - retrieve a file using HTTP or FTP
+ *
+ * Chip Rosenthal Covad Communications <chip@laserlink.net>
*
- * Chip Rosenthal
- * Covad Communications
- * <chip@laserlink.net>
*/
-#include "internal.h"
#include <stdio.h>
+#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netdb.h>
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <getopt.h>
+
+#include "busybox.h"
+
+/* Stupid libc5 doesn't define this... */
+#ifndef timersub
+#define timersub(a, b, result) \
+ do { \
+ (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
+ (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
+ if ((result)->tv_usec < 0) { \
+ --(result)->tv_sec; \
+ (result)->tv_usec += 1000000; \
+ } \
+ } while (0)
+#endif
+
+struct host_info {
+ char *host;
+ int port;
+ char *path;
+ int is_ftp;
+ char *user;
+};
+
+static void parse_url(char *url, struct host_info *h);
+static FILE *open_socket(char *host, int port);
+static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
+static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
+
+/* Globals (can be accessed from signal handlers */
+static off_t filesize = 0; /* content-length of the file */
+static int chunked = 0; /* chunked transfer encoding */
+#ifdef BB_FEATURE_WGET_STATUSBAR
+static void progressmeter(int flag);
+static char *curfile; /* Name of current file being transferred. */
+static struct timeval start; /* Time a transfer started. */
+static volatile unsigned long statbytes = 0; /* Number of bytes transferred so far. */
+/* For progressmeter() -- number of seconds before xfer considered "stalled" */
+static const int STALLTIME = 5;
+#endif
+
+static void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue)
+{
+ if (output != stdout && do_continue==0) {
+ fclose(output);
+ unlink(fname_out);
+ }
+}
+
+/* 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)
+{
+ size_t ret = 0;
+
+ do {
+ clearerr(stream);
+ ret += fread((char *)ptr + (ret * size), size, nmemb - ret, stream);
+ } while (ret < nmemb && ferror(stream) && errno == EINTR);
+
+ return ret;
+}
+
+/* Write NMEMB elements of SIZE bytes from PTR to STREAM. Returns the
+ * number of elements written, and a short count if an eof or non-interrupt
+ * error is encountered. */
+static size_t safe_fwrite(void *ptr, size_t size, size_t nmemb, FILE *stream)
+{
+ size_t ret = 0;
+
+ do {
+ clearerr(stream);
+ ret += fwrite((char *)ptr + (ret * size), size, nmemb - ret, stream);
+ } while (ret < nmemb && ferror(stream) && errno == EINTR);
-void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path);
-FILE *open_socket(char *host, int port);
-char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
+ return ret;
+}
+
+/* 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)
+{
+ char *ret;
+
+ do {
+ clearerr(stream);
+ ret = fgets(s, size, stream);
+ } while (ret == NULL && ferror(stream) && errno == EINTR);
+
+ return ret;
+}
+
+#define close_delete_and_die(s...) { \
+ close_and_delete_outfile(output, fname_out, do_continue); \
+ error_msg_and_die(s); }
+#ifdef BB_FEATURE_WGET_AUTHENTICATION
+/*
+ * Base64-encode character string
+ * oops... isn't something similar in uuencode.c?
+ * It would be better to use already existing code
+ */
+char *base64enc(char *p, char *buf, int len) {
+
+ char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+ "0123456789+/";
+ char *s = buf;
+
+ while(*p) {
+ if (s >= buf+len-4)
+ error_msg_and_die("buffer overflow");
+ *(s++) = al[(*p >> 2) & 0x3F];
+ *(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)];
+ *s = *(s+1) = '=';
+ *(s+2) = 0;
+ if (! *(++p)) break;
+ *(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)];
+ if (! *(++p)) break;
+ *(s++) = al[*(p++) & 0x3F];
+ }
+
+ return buf;
+}
+#endif
+
int wget_main(int argc, char **argv)
{
- FILE *sfp; /* socket to web server */
- char *uri_host, *uri_path; /* parsed from command line url */
- int uri_port;
+ int n, try=5, status;
+ int port;
+ char *proxy;
+ char *dir_prefix=NULL;
char *s, buf[512];
- int n;
-
+ struct stat sbuf;
+ char extra_headers[1024];
+ char *extra_headers_ptr = extra_headers;
+ int extra_headers_left = sizeof(extra_headers);
+ int which_long_opt = 0, option_index = -1;
+ struct host_info server, target;
+
+ 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 do_continue = 0; /* continue a prev transfer (-c) */
long beg_range = 0L; /* range at which continue begins */
int got_clen = 0; /* got content-length: from server */
- long clen = 1L; /* the content length */
-
+ FILE *output; /* socket to web server */
+ int quiet_flag = FALSE; /* Be verry, verry quiet... */
+
+#define LONG_HEADER 1
+ struct option long_options[] = {
+ { "continue", 0, NULL, 'c' },
+ { "quiet", 0, NULL, 'q' },
+ { "output-document", 1, NULL, 'O' },
+ { "header", 1, &which_long_opt, LONG_HEADER },
+ { 0, 0, 0, 0 }
+ };
/*
* Crack command line.
*/
- while ((n = getopt(argc, argv, "cO:")) != EOF) {
+ while ((n = getopt_long(argc, argv, "cqO:P:", long_options, &option_index)) != EOF) {
switch (n) {
case 'c':
++do_continue;
break;
+ case 'P':
+ dir_prefix = optarg;
+ break;
+ case 'q':
+ quiet_flag = TRUE;
+ break;
case 'O':
- fname_out = (strcmp(optarg, "-") == 0 ? NULL : optarg);
+ /* can't set fname_out to NULL if outputting to stdout, because
+ * this gets interpreted as the auto-gen output filename
+ * case below - tausq@debian.org
+ */
+ fname_out = optarg;
+ break;
+ case 0:
+ switch (which_long_opt) {
+ case LONG_HEADER: {
+ int arglen = strlen(optarg);
+ if(extra_headers_left - arglen - 2 <= 0)
+ error_msg_and_die("extra_headers buffer too small(need %i)", extra_headers_left - arglen);
+ strcpy(extra_headers_ptr, optarg);
+ extra_headers_ptr += arglen;
+ extra_headers_left -= ( arglen + 2 );
+ *extra_headers_ptr++ = '\r';
+ *extra_headers_ptr++ = '\n';
+ *(extra_headers_ptr + 1) = 0;
+ break;
+ }
+ }
break;
default:
- usage(wget_usage);
+ show_usage();
}
}
- if (do_continue && !fname_out)
- fatalError("wget: cannot specify continue (-c) without a filename (-O)\n");
+
if (argc - optind != 1)
- usage(wget_usage);
- /*
- * Parse url into components.
- */
- parse_url(argv[optind], &uri_host, &uri_port, &uri_path);
+ show_usage();
+
+ parse_url(argv[optind], &target);
+ server.host = target.host;
+ server.port = target.port;
/*
- * Open socket to server.
+ * Use the proxy if necessary.
*/
- sfp = open_socket(uri_host, uri_port);
+ proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
+ if (proxy)
+ parse_url(xstrdup(proxy), &server);
+
+ /* Guess an output filename */
+ if (!fname_out) {
+ fname_out =
+#ifdef BB_FEATURE_WGET_STATUSBAR
+ curfile =
+#endif
+ get_last_path_component(target.path);
+ if (fname_out==NULL || strlen(fname_out)<1) {
+ fname_out =
+#ifdef BB_FEATURE_WGET_STATUSBAR
+ curfile =
+#endif
+ "index.html";
+ }
+ if (dir_prefix != NULL)
+ fname_out = concat_path_file(dir_prefix, fname_out);
+#ifdef BB_FEATURE_WGET_STATUSBAR
+ } else {
+ curfile = get_last_path_component(fname_out);
+#endif
+ }
+ if (do_continue && !fname_out)
+ error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
+
/*
- * Open the output stream.
+ * Open the output file stream.
*/
- if (fname_out != NULL) {
- if (freopen(fname_out, (do_continue ? "a" : "w"), stdout) == NULL)
- fatalError("wget: freopen(%s): %s\n", fname_out, strerror(errno));
+ if (strcmp(fname_out, "-") == 0) {
+ output = stdout;
+ quiet_flag = TRUE;
+ } else {
+ output = xfopen(fname_out, (do_continue ? "a" : "w"));
}
/*
* Determine where to start transfer.
*/
if (do_continue) {
- struct stat sbuf;
- if (fstat(fileno(stdout), &sbuf) < 0)
- fatalError("wget: fstat(): %s\n", strerror(errno));
+ if (fstat(fileno(output), &sbuf) < 0)
+ perror_msg_and_die("fstat()");
if (sbuf.st_size > 0)
beg_range = sbuf.st_size;
else
do_continue = 0;
}
- /*
- * Send HTTP request.
- */
- fprintf(sfp, "GET %s HTTP/1.1\r\nHost: %s\r\n", uri_path, uri_host);
- if (do_continue)
- fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
- fputs("Connection: close\r\n\r\n", sfp);
-
- /*
- * Retrieve HTTP response line and check for "200" status code.
- */
- if (fgets(buf, sizeof(buf), sfp) == NULL)
- fatalError("wget: no response from server\n");
- for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
- ;
- for ( ; isspace(*s) ; ++s)
- ;
- switch (atoi(s)) {
- case 200:
- if (!do_continue)
- break;
- fatalError("wget: cannot continue - server does not properly support ranges\n");
- case 206:
- if (do_continue)
- break;
- /*FALLTHRU*/
- default:
- fatalError("wget: server returned error: %s", buf);
+ if (proxy || !target.is_ftp) {
+ /*
+ * HTTP session
+ */
+ do {
+ if (! --try)
+ close_delete_and_die("too many redirections");
+
+ /*
+ * Open socket to http server
+ */
+ if (sfp) fclose(sfp);
+ sfp = open_socket(server.host, server.port);
+
+ /*
+ * Send HTTP request.
+ */
+ if (proxy) {
+ fprintf(sfp, "GET %stp://%s:%d/%s HTTP/1.1\r\n",
+ target.is_ftp ? "f" : "ht", target.host,
+ target.port, target.path);
+ } else {
+ fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
+ }
+
+ fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host);
+
+#ifdef BB_FEATURE_WGET_AUTHENTICATION
+ if (target.user) {
+ fprintf(sfp, "Authorization: Basic %s\r\n",
+ base64enc(target.user, buf, sizeof(buf)));
+ }
+ if (proxy && server.user) {
+ fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
+ base64enc(server.user, buf, sizeof(buf)));
+ }
+#endif
+
+ if (do_continue)
+ fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
+ if(extra_headers_left < sizeof(extra_headers))
+ fputs(extra_headers,sfp);
+ fprintf(sfp,"Connection: close\r\n\r\n");
+
+ /*
+ * Retrieve HTTP response line and check for "200" status code.
+ */
+read_response: if (fgets(buf, sizeof(buf), sfp) == NULL)
+ close_delete_and_die("no response from server");
+
+ for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
+ ;
+ for ( ; isspace(*s) ; ++s)
+ ;
+ switch (status = atoi(s)) {
+ case 0:
+ case 100:
+ while (gethdr(buf, sizeof(buf), sfp, &n) != NULL);
+ goto read_response;
+ case 200:
+ if (do_continue && output != stdout)
+ output = freopen(fname_out, "w", output);
+ do_continue = 0;
+ break;
+ case 300: /* redirection */
+ case 301:
+ case 302:
+ case 303:
+ break;
+ case 206:
+ if (do_continue)
+ break;
+ /*FALLTHRU*/
+ default:
+ chomp(buf);
+ close_delete_and_die("server returned error %d: %s", atoi(s), buf);
+ }
+
+ /*
+ * Retrieve HTTP headers.
+ */
+ while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
+ if (strcasecmp(buf, "content-length") == 0) {
+ filesize = atol(s);
+ got_clen = 1;
+ continue;
+ }
+ if (strcasecmp(buf, "transfer-encoding") == 0) {
+ if (strcasecmp(s, "chunked") == 0) {
+ chunked = got_clen = 1;
+ } else {
+ close_delete_and_die("server wants to do %s transfer encoding", s);
+ }
+ }
+ if (strcasecmp(buf, "location") == 0) {
+ if (s[0] == '/')
+ target.path = xstrdup(s+1);
+ else {
+ parse_url(xstrdup(s), &target);
+ if (!proxy) {
+ server.host = target.host;
+ server.port = target.port;
+ }
+ }
+ }
+ }
+ } while(status >= 300);
+
+ dfp = sfp;
}
-
- /*
- * Retrieve HTTP headers.
- */
- while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
- if (strcmp(buf, "content-length") == 0) {
- clen = atol(s);
+ else
+ {
+ /*
+ * FTP session
+ */
+ if (! target.user)
+ target.user = xstrdup("anonymous:busybox@");
+
+ sfp = open_socket(server.host, server.port);
+ if (ftpcmd(NULL, NULL, sfp, buf) != 220)
+ close_delete_and_die("%s", buf+4);
+
+ /*
+ * Splitting username:password pair,
+ * trying to log in
+ */
+ s = strchr(target.user, ':');
+ if (s)
+ *(s++) = '\0';
+ switch(ftpcmd("USER ", target.user, sfp, buf)) {
+ case 230:
+ break;
+ case 331:
+ if (ftpcmd("PASS ", s, sfp, buf) == 230)
+ break;
+ /* FALLTHRU (failed login) */
+ default:
+ close_delete_and_die("ftp login: %s", buf+4);
+ }
+
+ ftpcmd("CDUP", NULL, sfp, buf);
+ ftpcmd("TYPE I", NULL, sfp, buf);
+
+ /*
+ * Querying file size
+ */
+ if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) {
+ filesize = atol(buf+4);
got_clen = 1;
- continue;
}
- if (strcmp(buf, "transfer-encoding") == 0) {
- fatalError("wget: i do not do transfer encodings, server wants to do: %s\n", s);
- continue;
+
+ /*
+ * Entering passive mode
+ */
+ if (ftpcmd("PASV", NULL, sfp, buf) != 227)
+ close_delete_and_die("PASV: %s", buf+4);
+ s = strrchr(buf, ',');
+ *s = 0;
+ port = atoi(s+1);
+ s = strrchr(buf, ',');
+ port += atoi(s+1) * 256;
+ dfp = open_socket(server.host, port);
+
+ if (do_continue) {
+ sprintf(buf, "REST %ld", beg_range);
+ if (ftpcmd(buf, NULL, sfp, buf) != 350) {
+ if (output != stdout)
+ output = freopen(fname_out, "w", output);
+ do_continue = 0;
+ } else
+ filesize -= beg_range;
}
+
+ if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
+ close_delete_and_die("RETR: %s", buf+4);
+
}
+
/*
- * Retrieve HTTP body.
+ * Retrieve file
*/
- while (clen > 0 && (n = fread(buf, 1, sizeof(buf), sfp)) > 0) {
- fwrite(buf, 1, n, stdout);
+ if (chunked) {
+ fgets(buf, sizeof(buf), dfp);
+ filesize = strtol(buf, (char **) NULL, 16);
+ }
+#ifdef BB_FEATURE_WGET_STATUSBAR
+ if (quiet_flag==FALSE)
+ progressmeter(-1);
+#endif
+ do {
+ while ((filesize > 0 || !got_clen) && (n = safe_fread(buf, 1, chunked ? (filesize > sizeof(buf) ? sizeof(buf) : filesize) : sizeof(buf), dfp)) > 0) {
+ safe_fwrite(buf, 1, n, output);
+#ifdef BB_FEATURE_WGET_STATUSBAR
+ statbytes+=n;
+#endif
if (got_clen)
- clen -= n;
+ filesize -= n;
}
- if (n == 0 && ferror(sfp))
- fatalError("wget: network read error: %s", strerror(errno));
- exit(0);
+ if (chunked) {
+ safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
+ safe_fgets(buf, sizeof(buf), dfp);
+ filesize = strtol(buf, (char **) NULL, 16);
+ if (filesize==0) chunked = 0; /* all done! */
+ }
+
+ if (n == 0 && ferror(dfp))
+ perror_msg_and_die("network read error");
+ } while (chunked);
+#ifdef BB_FEATURE_WGET_STATUSBAR
+ if (quiet_flag==FALSE)
+ progressmeter(1);
+#endif
+ if (!proxy && target.is_ftp) {
+ fclose(dfp);
+ if (ftpcmd(NULL, NULL, sfp, buf) != 226)
+ error_msg_and_die("ftp error: %s", buf+4);
+ ftpcmd("QUIT", NULL, sfp, buf);
+ }
+ exit(EXIT_SUCCESS);
}
-void parse_url(char *url, char **uri_host, int *uri_port, char **uri_path)
+void parse_url(char *url, struct host_info *h)
{
- char *s, *h;
-
- *uri_port = 80;
-
- if (strncmp(url, "http://", 7) != 0)
- fatalError("wget: not an http url: %s\n", url);
-
- /* pull the host portion to the front of the buffer */
- for (s = url, h = url+7 ; *h != '/' ; ++h) {
- if (*h == '\0')
- fatalError("wget: cannot parse url: %s\n", url);
- if (*h == ':') {
- *uri_port = atoi(h+1);
- *h = '\0';
- }
- *s++ = *h;
+ char *cp, *sp, *up;
+
+ if (strncmp(url, "http://", 7) == 0) {
+ h->port = 80;
+ h->host = url + 7;
+ h->is_ftp = 0;
+ } else if (strncmp(url, "ftp://", 6) == 0) {
+ h->port = 21;
+ h->host = url + 6;
+ h->is_ftp = 1;
+ } else
+ error_msg_and_die("not an http or ftp url: %s", url);
+
+ sp = strchr(h->host, '/');
+ if (sp != NULL) {
+ *sp++ = '\0';
+ h->path = sp;
+ } else
+ h->path = "";
+
+ up = strrchr(h->host, '@');
+ if (up != NULL) {
+ h->user = h->host;
+ *up++ = '\0';
+ h->host = up;
+ } else
+ h->user = NULL;
+
+ cp = strchr(h->host, ':');
+ if (cp != NULL) {
+ *cp++ = '\0';
+ h->port = atoi(cp);
}
- *s = '\0';
- *uri_host = url;
- *uri_path = h;
+
}
FILE *open_socket(char *host, int port)
{
- struct sockaddr_in sin;
+ struct sockaddr_in s_in;
struct hostent *hp;
int fd;
FILE *fp;
- memzero(&sin, sizeof(sin));
- sin.sin_family = AF_INET;
- if ((hp = (struct hostent *) gethostbyname(host)) == NULL)
- fatalError("wget: cannot resolve %s\n", host);
- memcpy(&sin.sin_addr, hp->h_addr_list[0], hp->h_length);
- sin.sin_port = htons(port);
+ memset(&s_in, 0, sizeof(s_in));
+ s_in.sin_family = AF_INET;
+ hp = xgethostbyname(host);
+ memcpy(&s_in.sin_addr, hp->h_addr_list[0], hp->h_length);
+ s_in.sin_port = htons(port);
/*
* Get the server onto a stdio stream.
*/
if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
- fatalError("wget: socket(): %s\n", strerror(errno));
- if (connect(fd, (struct sockaddr *) &sin, sizeof(sin)) < 0)
- fatalError("wget: connect(%s): %s\n", host, strerror(errno));
+ perror_msg_and_die("socket()");
+ if (connect(fd, (struct sockaddr *) &s_in, sizeof(s_in)) < 0)
+ perror_msg_and_die("connect(%s)", host);
if ((fp = fdopen(fd, "r+")) == NULL)
- fatalError("wget: fdopen(): %s\n", strerror(errno));
+ perror_msg_and_die("fdopen()");
return fp;
}
/* verify we are at the end of the header name */
if (*s != ':')
- fatalError("wget: bad header line: %s\n", buf);
+ error_msg_and_die("bad header line: %s", buf);
/* locate the start of the header value */
for (*s++ = '\0' ; *s == ' ' || *s == '\t' ; ++s)
return hdrval;
}
+static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
+{
+ char *p;
+
+ if (s1) {
+ if (!s2) s2="";
+ fprintf(fp, "%s%s\n", s1, s2);
+ fflush(fp);
+ }
+
+ do {
+ p = fgets(buf, 510, fp);
+ if (!p)
+ perror_msg_and_die("fgets()");
+ } while (! isdigit(buf[0]) || buf[3] != ' ');
+
+ return atoi(buf);
+}
+
+#ifdef BB_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)
+{
+ struct winsize winsize;
+
+ if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
+ return (winsize.ws_col ? winsize.ws_col : 80);
+ else
+ return (80);
+}
+
+static void
+updateprogressmeter(int ignore)
+{
+ int save_errno = errno;
+
+ progressmeter(0);
+ errno = save_errno;
+}
+
+static void
+alarmtimer(int wait)
+{
+ struct itimerval itv;
+
+ itv.it_value.tv_sec = wait;
+ itv.it_value.tv_usec = 0;
+ itv.it_interval = itv.it_value;
+ setitimer(ITIMER_REAL, &itv, NULL);
+}
+
+
+static void
+progressmeter(int flag)
+{
+ static const char prefixes[] = " KMGTP";
+ static struct timeval lastupdate;
+ static off_t lastsize, totalsize;
+ struct timeval now, td, wait;
+ off_t cursize, abbrevsize;
+ double elapsed;
+ int ratio, barlength, i, remaining;
+ char buf[256];
+
+ if (flag == -1) {
+ (void) gettimeofday(&start, (struct timezone *) 0);
+ lastupdate = start;
+ lastsize = 0;
+ totalsize = filesize; /* as filesize changes.. */
+ }
+
+ (void) gettimeofday(&now, (struct timezone *) 0);
+ cursize = statbytes;
+ if (totalsize != 0 && !chunked) {
+ ratio = 100.0 * cursize / totalsize;
+ ratio = MAX(ratio, 0);
+ ratio = MIN(ratio, 100);
+ } else
+ ratio = 100;
+
+ snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
+
+ barlength = getttywidth() - 51;
+ if (barlength > 0) {
+ i = barlength * ratio / 100;
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ "|%.*s%*s|", i,
+ "*****************************************************************************"
+ "*****************************************************************************",
+ barlength - i, "");
+ }
+ i = 0;
+ abbrevsize = cursize;
+ while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
+ i++;
+ abbrevsize >>= 10;
+ }
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ",
+ (int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' :
+ 'B');
+
+ timersub(&now, &lastupdate, &wait);
+ if (cursize > lastsize) {
+ lastupdate = now;
+ lastsize = cursize;
+ if (wait.tv_sec >= STALLTIME) {
+ start.tv_sec += wait.tv_sec;
+ start.tv_usec += wait.tv_usec;
+ }
+ wait.tv_sec = 0;
+ }
+ timersub(&now, &start, &td);
+ elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
+
+ if (wait.tv_sec >= STALLTIME) {
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ " - stalled -");
+ } else if (statbytes <= 0 || elapsed <= 0.0 || cursize > totalsize || chunked) {
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ " --:-- ETA");
+ } else {
+ remaining = (int) (totalsize / (statbytes / elapsed) - elapsed);
+ i = remaining / 3600;
+ if (i)
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ "%2d:", i);
+ else
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ " ");
+ i = remaining % 3600;
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+ "%02d:%02d ETA", i / 60, i % 60);
+ }
+ write(fileno(stderr), buf, strlen(buf));
+
+ if (flag == -1) {
+ 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) {
+ alarmtimer(0);
+ statbytes = 0;
+ putc('\n', stderr);
+ }
+}
+#endif
+
+/* Original copyright notice which applies to the BB_FEATURE_WGET_STATUSBAR stuff,
+ * much of which was blatently 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.
+ *
+ * $Id: wget.c,v 1.45 2001/07/19 22:28:01 andersen Exp $
+ */
+
+
+
/*
Local Variables:
c-file-style: "linux"
tab-width: 4
End:
*/
+
+
+
projects / oweals / busybox.git / blobdiff