/* 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>
*
- * Note: According to RFC2616 section 3.6.1, "All HTTP/1.1 applications MUST be
- * able to receive and decode the "chunked" transfer-coding, and MUST ignore
- * chunk-extension extensions they do not understand."
- *
- * This prevents this particular wget app from completely RFC compliant, and as
- * such, prevents it from being used as a general purpose web browser... This
- * is a design decision, since it makes the code smaller.
- *
*/
+/* 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 <stdio.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 <netinet/in.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-
-
-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);
-void progressmeter(int flag);
+#include <getopt.h> /* for struct option */
+
+#ifdef CONFIG_LFS
+# define FILEOFF_TYPE off64_t
+# define FILEOFF_FMT "%lld"
+# define LSEEK lseek64
+# define STRTOOFF strtoll
+# define SAFE_STRTOOFF safe_strtoll
+/* stat64 etc as needed... */
+#else
+# define FILEOFF_TYPE off_t
+# define FILEOFF_FMT "%ld"
+# define LSEEK lseek
+# define STRTOOFF strtol
+# define SAFE_STRTOOFF safe_strtol
+/* Do we need to undefine O_LARGEFILE? */
+#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(struct sockaddr_in *s_in);
+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 */
-#ifdef BB_FEATURE_STATUSBAR
-static char *curfile; /* Name of current file being transferred. */
-static struct timeval start; /* Time a transfer started. */
-volatile unsigned long statbytes; /* Number of bytes transferred so far. */
-/* For progressmeter() -- number of seconds before xfer considered "stalled" */
-#define STALLTIME 5
+static FILEOFF_TYPE content_len; /* Content-length of the file */
+static FILEOFF_TYPE beg_range; /* Range at which continue begins */
+static FILEOFF_TYPE transferred; /* Number of bytes transferred so far */
+static int chunked; /* chunked transfer encoding */
+#ifdef CONFIG_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 */
+enum {
+ STALLTIME = 5 /* Seconds when xfer considered "stalled" */
+};
+#else
+static void progressmeter(int flag) {}
+#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)
+{
+ 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;
+}
+
+/* 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;
+}
+
+#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
+/*
+ * Base64-encode character string and return the string.
+ */
+static char *base64enc(unsigned char *p, char *buf, int len)
+{
+ bb_uuencode(p, buf, len, bb_uuenc_tbl_base64);
+ return buf;
+}
+#endif
+
+#define WGET_OPT_CONTINUE 1
+#define WGET_OPT_QUIET 2
+#define WGET_OPT_PASSIVE 4
+#define WGET_OPT_OUTNAME 8
+#define WGET_OPT_HEADER 16
+#define WGET_OPT_PREFIX 32
+#define WGET_OPT_PROXY 64
+#define WGET_OPT_USER_AGENT 128
+
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+static const struct option wget_long_options[] = {
+ { "continue", 0, NULL, 'c' },
+ { "quiet", 0, NULL, 'q' },
+ { "passive-ftp", 0, NULL, 139 }, /* FIXME: what is this - 139?? */
+ { "output-document", 1, NULL, 'O' },
+ { "header", 1, NULL, 131 },
+ { "directory-prefix",1, NULL, 'P' },
+ { "proxy", 1, NULL, 'Y' },
+ { "user-agent", 1, NULL, 'U' },
+ { 0, 0, 0, 0 }
+};
#endif
int wget_main(int argc, char **argv)
{
- FILE *sfp; /* socket to web server */
- char *uri_host, *uri_path; /* parsed from command line url */
- char *proxy;
- int uri_port;
+ int n, try=5, status;
+ unsigned opt;
+ int port;
+ char *proxy = 0;
+ char *dir_prefix=NULL;
char *s, buf[512];
- int n;
-
- 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 */
- FILE *output; /* socket to web server */
+ char extra_headers[1024];
+ char *extra_headers_ptr = extra_headers;
+ int extra_headers_left = sizeof(extra_headers);
+ struct host_info server, target;
+ struct sockaddr_in s_in;
+ llist_t *headers_llist = 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 */
+ int output_fd = -1;
+ int use_proxy = 1; /* Use proxies if env vars are set */
+ char *proxy_flag = "on"; /* Use proxies if env vars are set */
+ char *user_agent = "Wget"; /* Content of the "User-Agent" header field */
/*
* Crack command line.
*/
- while ((n = getopt(argc, argv, "cO:")) != EOF) {
- switch (n) {
- case 'c':
- ++do_continue;
- break;
- case 'O':
- /* 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 = (strcmp(optarg, "-") == 0 ? (char *)1 : optarg);
- break;
- default:
- usage(wget_usage);
+ opt_complementary = "-1:\203::";
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ applet_long_options = wget_long_options;
+#endif
+ opt = getopt32(argc, argv, "cq\213O:\203:P:Y:U:",
+ &fname_out, &headers_llist,
+ &dir_prefix, &proxy_flag, &user_agent);
+ if (strcmp(proxy_flag, "off") == 0) {
+ /* Use the proxy if necessary. */
+ use_proxy = 0;
+ }
+ if (opt & WGET_OPT_HEADER) {
+ while (headers_llist) {
+ int arglen = strlen(headers_llist->data);
+ if (extra_headers_left - arglen - 2 <= 0)
+ bb_error_msg_and_die("extra_headers buffer too small "
+ "(need %i)", extra_headers_left - arglen);
+ strcpy(extra_headers_ptr, headers_llist->data);
+ extra_headers_ptr += arglen;
+ extra_headers_left -= ( arglen + 2 );
+ *extra_headers_ptr++ = '\r';
+ *extra_headers_ptr++ = '\n';
+ *(extra_headers_ptr + 1) = 0;
+ headers_llist = headers_llist->link;
}
}
- if (argc - optind != 1)
- usage(wget_usage);
+ parse_url(argv[optind], &target);
+ server.host = target.host;
+ server.port = target.port;
+
+ /*
+ * Use the proxy if necessary.
+ */
+ if (use_proxy) {
+ proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
+ if (proxy && *proxy) {
+ parse_url(xstrdup(proxy), &server);
+ } else {
+ use_proxy = 0;
+ }
+ }
/* Guess an output filename */
if (!fname_out) {
- fname_out =
-#ifdef BB_FEATURE_STATUSBAR
- curfile =
+ // Dirty hack. Needed because bb_get_last_path_component
+ // will destroy trailing / by storing '\0' in last byte!
+ if (*target.path && target.path[strlen(target.path)-1] != '/') {
+ fname_out =
+#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+ curfile =
#endif
- get_last_path_component(argv[optind]);
-#ifdef BB_FEATURE_STATUSBAR
+ bb_get_last_path_component(target.path);
+ }
+ if (!fname_out || !fname_out[0]) {
+ fname_out =
+#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+ curfile =
+#endif
+ "index.html";
+ }
+ if (dir_prefix != NULL)
+ fname_out = concat_path_file(dir_prefix, fname_out);
+#ifdef CONFIG_FEATURE_WGET_STATUSBAR
} else {
- curfile=argv[optind];
+ curfile = bb_get_last_path_component(fname_out);
#endif
}
-
-
- if (do_continue && !fname_out)
- error_msg_and_die("cannot specify continue (-c) without a filename (-O)\n");
+ if ((opt & WGET_OPT_CONTINUE) && !fname_out)
+ bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
/*
- * Use the proxy if necessary.
+ * Determine where to start transfer.
*/
- if ((proxy = getenv("http_proxy")) != NULL) {
- proxy = xstrdup(proxy);
- parse_url(proxy, &uri_host, &uri_port, &uri_path);
- uri_path = argv[optind];
- } else {
+ if (!strcmp(fname_out, "-")) {
+ output_fd = 1;
+ opt |= WGET_OPT_QUIET;
+ opt &= ~WGET_OPT_CONTINUE;
+ } else if (opt & WGET_OPT_CONTINUE) {
+ output_fd = open(fname_out, O_WRONLY|O_LARGEFILE);
+ if (output_fd >= 0) {
+ beg_range = LSEEK(output_fd, 0, SEEK_END);
+ if (beg_range == (FILEOFF_TYPE)-1)
+ bb_perror_msg_and_die("lseek");
+ }
+ /* File doesn't exist. We do not create file here yet.
+ We are not sure it exists on remove side */
+ }
+
+ /* We want to do exactly _one_ DNS lookup, since some
+ * sites (i.e. ftp.us.debian.org) use round-robin DNS
+ * and we want to connect to only one IP... */
+ bb_lookup_host(&s_in, server.host);
+ s_in.sin_port = server.port;
+ if (!(opt & WGET_OPT_QUIET)) {
+ printf("Connecting to %s[%s]:%d\n",
+ server.host, inet_ntoa(s_in.sin_addr), ntohs(server.port));
+ }
+
+ if (use_proxy || !target.is_ftp) {
/*
- * Parse url into components.
+ * HTTP session
*/
- parse_url(argv[optind], &uri_host, &uri_port, &uri_path);
- }
+ do {
+ got_clen = chunked = 0;
- /*
- * Open socket to server.
- */
- sfp = open_socket(uri_host, uri_port);
+ if (!--try)
+ bb_error_msg_and_die("too many redirections");
- /*
- * Open the output stream.
- */
- if (fname_out != (char *)1) {
- if ( (output=fopen(fname_out, (do_continue ? "a" : "w")))
- == NULL)
- perror_msg_and_die("fopen(%s)", fname_out);
- } else {
- output = stdout;
- }
+ /*
+ * Open socket to http server
+ */
+ if (sfp) fclose(sfp);
+ sfp = open_socket(&s_in);
- /*
- * Determine where to start transfer.
- */
- if (do_continue) {
- struct stat sbuf;
- if (fstat(fileno(output), &sbuf) < 0)
- error_msg_and_die("fstat()");
- if (sbuf.st_size > 0)
- beg_range = sbuf.st_size;
- else
- do_continue = 0;
+ /*
+ * Send HTTP request.
+ */
+ if (use_proxy) {
+ const char *format = "GET %stp://%s:%d/%s HTTP/1.1\r\n";
+#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
+ if (strchr(target.host, ':'))
+ format = "GET %stp://[%s]:%d/%s HTTP/1.1\r\n";
+#endif
+ fprintf(sfp, format,
+ target.is_ftp ? "f" : "ht", target.host,
+ ntohs(target.port), target.path);
+ } else {
+ fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
+ }
+
+ fprintf(sfp, "Host: %s\r\nUser-Agent: %s\r\n", target.host,
+ user_agent);
+
+#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
+ if (target.user) {
+ fprintf(sfp, "Authorization: Basic %s\r\n",
+ base64enc((unsigned char*)target.user, buf, sizeof(buf)));
+ }
+ if (use_proxy && server.user) {
+ fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
+ base64enc((unsigned char*)server.user, buf, sizeof(buf)));
+ }
+#endif
+
+ if (beg_range)
+ fprintf(sfp, "Range: bytes="FILEOFF_FMT"-\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)
+ bb_error_msg_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:
+ break;
+ case 300: /* redirection */
+ case 301:
+ case 302:
+ case 303:
+ break;
+ case 206:
+ if (beg_range)
+ break;
+ /*FALLTHRU*/
+ default:
+ chomp(buf);
+ bb_error_msg_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) {
+ if (SAFE_STRTOOFF(s, &content_len) || content_len < 0) {
+ bb_error_msg_and_die("content-length %s is garbage", s);
+ }
+ got_clen = 1;
+ continue;
+ }
+ if (strcasecmp(buf, "transfer-encoding") == 0) {
+ if (strcasecmp(s, "chunked") == 0) {
+ chunked = got_clen = 1;
+ } else {
+ bb_error_msg_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 (use_proxy == 0) {
+ server.host = target.host;
+ server.port = target.port;
+ }
+ bb_lookup_host(&s_in, server.host);
+ s_in.sin_port = server.port;
+ break;
+ }
+ }
+ }
+ } while(status >= 300);
+
+ dfp = sfp;
}
+ else
+ {
+ /*
+ * FTP session
+ */
+ if (!target.user)
+ target.user = xstrdup("anonymous:busybox@");
- /*
- * 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);
+ sfp = open_socket(&s_in);
+ if (ftpcmd(NULL, NULL, sfp, buf) != 220)
+ bb_error_msg_and_die("%s", buf+4);
- /*
- * Retrieve HTTP response line and check for "200" status code.
- */
- if (fgets(buf, sizeof(buf), sfp) == NULL)
- error_msg_and_die("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;
- error_msg_and_die("server does not support ranges\n");
- case 206:
- if (do_continue)
+ /*
+ * 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;
- /*FALLTHRU*/
- default:
- error_msg_and_die("server returned error: %s", buf);
- }
+ case 331:
+ if (ftpcmd("PASS ", s, sfp, buf) == 230)
+ break;
+ /* FALLTHRU (failed login) */
+ default:
+ bb_error_msg_and_die("ftp login: %s", buf+4);
+ }
- /*
- * Retrieve HTTP headers.
- */
- while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
- if (strcmp(buf, "content-length") == 0) {
- filesize = atol(s);
+ ftpcmd("TYPE I", NULL, sfp, buf);
+
+ /*
+ * Querying file size
+ */
+ if (ftpcmd("SIZE ", target.path, sfp, buf) == 213) {
+ if (SAFE_STRTOOFF(buf+4, &content_len) || content_len < 0) {
+ bb_error_msg_and_die("SIZE value is garbage");
+ }
got_clen = 1;
- continue;
}
- if (strcmp(buf, "transfer-encoding") == 0) {
- error_msg_and_die("server wants to do %s transfer encoding\n", s);
- continue;
+
+ /*
+ * Entering passive mode
+ */
+ if (ftpcmd("PASV", NULL, sfp, buf) != 227)
+ bb_error_msg_and_die("PASV: %s", buf+4);
+ s = strrchr(buf, ',');
+ *s = 0;
+ port = atoi(s+1);
+ s = strrchr(buf, ',');
+ port += atoi(s+1) * 256;
+ s_in.sin_port = htons(port);
+ dfp = open_socket(&s_in);
+
+ if (beg_range) {
+ sprintf(buf, "REST "FILEOFF_FMT, beg_range);
+ if (ftpcmd(buf, NULL, sfp, buf) == 350)
+ content_len -= beg_range;
}
+
+ if (ftpcmd("RETR ", target.path, sfp, buf) > 150)
+ bb_error_msg_and_die("RETR: %s", buf+4);
}
+
/*
- * Retrieve HTTP body.
+ * Retrieve file
*/
-#ifdef BB_FEATURE_STATUSBAR
- statbytes=0;
- progressmeter(-1);
+ if (chunked) {
+ fgets(buf, sizeof(buf), dfp);
+ content_len = STRTOOFF(buf, (char **) NULL, 16);
+ /* FIXME: error check?? */
+ }
+
+ /* Do it before progressmeter (want to have nice error message) */
+ if (output_fd < 0)
+ output_fd = xopen3(fname_out,
+ O_WRONLY|O_CREAT|O_EXCL|O_TRUNC|O_LARGEFILE, 0666);
+
+ if (!(opt & WGET_OPT_QUIET))
+ progressmeter(-1);
+
+ do {
+ while (content_len > 0 || !got_clen) {
+ 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)
+ break;
+ if (full_write(output_fd, buf, n) != n) {
+ bb_perror_msg_and_die(bb_msg_write_error);
+ }
+#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+ transferred += n;
#endif
- while (filesize > 0 && (n = fread(buf, 1, sizeof(buf), sfp)) > 0) {
- fwrite(buf, 1, n, output);
-#ifdef BB_FEATURE_STATUSBAR
- statbytes+=n;
+ 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, (char **) NULL, 16);
+ /* FIXME: error check? */
+ if (content_len == 0) {
+ chunked = 0; /* all done! */
+ }
+ }
+
+ if (n == 0 && ferror(dfp)) {
+ bb_perror_msg_and_die(bb_msg_read_error);
+ }
+ } while (chunked);
+
+ if (!(opt & WGET_OPT_QUIET))
progressmeter(1);
-#endif
- if (got_clen)
- filesize -= n;
- }
- if (n == 0 && ferror(sfp))
- perror_msg_and_die("network read error");
- exit(0);
+ if ((use_proxy == 0) && target.is_ftp) {
+ fclose(dfp);
+ if (ftpcmd(NULL, NULL, sfp, buf) != 226)
+ bb_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)
+static void parse_url(char *url, struct host_info *h)
{
- char *s, *h;
- static char *defaultpath = "/";
+ char *cp, *sp, *up, *pp;
+
+ 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", "tfp", 21);
+ h->host = url + 6;
+ h->is_ftp = 1;
+ } else
+ bb_error_msg_and_die("not an http or ftp url: %s", url);
+
+ sp = strchr(h->host, '/');
+ if (sp) {
+ *sp++ = '\0';
+ h->path = sp;
+ } else
+ h->path = xstrdup("");
- *uri_port = 80;
+ up = strrchr(h->host, '@');
+ if (up != NULL) {
+ h->user = h->host;
+ *up++ = '\0';
+ h->host = up;
+ } else
+ h->user = NULL;
+
+ pp = h->host;
- if (strncmp(url, "http://", 7) != 0)
- error_msg_and_die("not an http url: %s\n", url);
+#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
+ if (h->host[0] == '[') {
+ char *ep;
- /* pull the host portion to the front of the buffer */
- for (s = url, h = url+7 ; *h != '/' && *h != 0; ++h) {
- if (*h == ':') {
- *uri_port = atoi(h+1);
- *h = '\0';
+ ep = h->host + 1;
+ while (*ep == ':' || isxdigit (*ep))
+ ep++;
+ if (*ep == ']') {
+ h->host++;
+ *ep = '\0';
+ pp = ep + 1;
}
- *s++ = *h;
}
- *s = '\0';
-
- if (*h == 0) h = defaultpath;
+#endif
- *uri_host = url;
- *uri_path = h;
+ cp = strchr(pp, ':');
+ if (cp != NULL) {
+ *cp++ = '\0';
+ h->port = htons(atoi(cp));
+ }
}
-FILE *open_socket(char *host, int port)
+static FILE *open_socket(struct sockaddr_in *s_in)
{
- struct sockaddr_in sin;
- struct hostent *hp;
- int fd;
FILE *fp;
- memzero(&sin, sizeof(sin));
- sin.sin_family = AF_INET;
- if ((hp = (struct hostent *) gethostbyname(host)) == NULL)
- error_msg_and_die("cannot resolve %s\n", host);
- memcpy(&sin.sin_addr, hp->h_addr_list[0], hp->h_length);
- sin.sin_port = htons(port);
-
- /*
- * Get the server onto a stdio stream.
- */
- if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
- perror_msg_and_die("socket()");
- if (connect(fd, (struct sockaddr *) &sin, sizeof(sin)) < 0)
- perror_msg_and_die("connect(%s)", host);
- if ((fp = fdopen(fd, "r+")) == NULL)
- perror_msg_and_die("fdopen()");
+ fp = fdopen(xconnect(s_in), "r+");
+ if (fp == NULL)
+ bb_perror_msg_and_die("fdopen");
return fp;
}
-char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
+static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
{
char *s, *hdrval;
int c;
/* verify we are at the end of the header name */
if (*s != ':')
- error_msg_and_die("bad header line: %s\n", buf);
+ bb_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;
}
-#ifdef BB_FEATURE_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 ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
+{
+ 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("fgets");
+ }
+ buf_ptr = strstr(buf, "\r\n");
+ if (buf_ptr) {
+ *buf_ptr = '\0';
+ }
+ } while (!isdigit(buf[0]) || buf[3] != ' ');
+ return atoi(buf);
+}
-int
+#ifdef CONFIG_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);
+ int width=0;
+ get_terminal_width_height(0, &width, NULL);
+ return (width);
}
-void
+static void
updateprogressmeter(int ignore)
{
int save_errno = errno;
errno = save_errno;
}
-void
-alarmtimer(int wait)
+static void alarmtimer(int iwait)
{
struct itimerval itv;
- itv.it_value.tv_sec = wait;
+ itv.it_value.tv_sec = iwait;
itv.it_value.tv_usec = 0;
itv.it_interval = itv.it_value;
setitimer(ITIMER_REAL, &itv, NULL);
}
-void
+static void
progressmeter(int flag)
{
- static const char prefixes[] = " KMGTP";
static struct timeval lastupdate;
- static off_t lastsize;
- struct timeval now, td, wait;
- off_t cursize, abbrevsize;
- double elapsed;
- int ratio, barlength, i, remaining;
+ static FILEOFF_TYPE lastsize, totalsize;
+
+ struct timeval now, td, tvwait;
+ FILEOFF_TYPE abbrevsize;
+ int elapsed, ratio, barlength, i;
char buf[256];
- if (flag == -1) {
+ if (flag == -1) { /* first call to progressmeter */
(void) gettimeofday(&start, (struct timezone *) 0);
lastupdate = start;
lastsize = 0;
+ totalsize = content_len + beg_range; /* as content_len changes.. */
}
(void) gettimeofday(&now, (struct timezone *) 0);
- cursize = statbytes;
- if (filesize != 0) {
- ratio = 100.0 * cursize / filesize;
- ratio = MAX(ratio, 0);
+ ratio = 100;
+ if (totalsize != 0 && !chunked) {
+ ratio = (int) (100 * (transferred+beg_range) / totalsize);
ratio = MIN(ratio, 100);
- } else
- ratio = 100;
+ }
- snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
+ fprintf(stderr, "\r%-20.20s%4d%% ", curfile, ratio);
barlength = getttywidth() - 51;
- if (barlength > 0) {
+ if (barlength > 0 && barlength < sizeof(buf)) {
i = barlength * ratio / 100;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "|%.*s%*s|", i,
- "*****************************************************************************"
- "*****************************************************************************",
- barlength - i, "");
+ memset(buf, '*', i);
+ memset(buf + i, ' ', barlength - i);
+ buf[barlength] = '\0';
+ fprintf(stderr, "|%s|", buf);
}
i = 0;
- abbrevsize = cursize;
- while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
+ abbrevsize = transferred + beg_range;
+ while (abbrevsize >= 100000) {
i++;
abbrevsize >>= 10;
}
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ",
- (int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' :
- 'B');
+ /* See http://en.wikipedia.org/wiki/Tera */
+ fprintf(stderr, "%6d %c%c ", (int)abbrevsize, " KMGTPEZY"[i], i?'B':' ');
- timersub(&now, &lastupdate, &wait);
- if (cursize > lastsize) {
+ timersub(&now, &lastupdate, &tvwait);
+ if (transferred > 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;
+ lastsize = transferred;
+ if (tvwait.tv_sec >= STALLTIME)
+ timeradd(&start, &tvwait, &start);
+ tvwait.tv_sec = 0;
}
timersub(&now, &start, &td);
- elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
-
- if (statbytes <= 0 || elapsed <= 0.0 || cursize > filesize) {
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " --:-- ETA");
- } else if (wait.tv_sec >= STALLTIME) {
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " - stalled -");
+ elapsed = td.tv_sec;
+
+ if (tvwait.tv_sec >= STALLTIME) {
+ fprintf(stderr, " - stalled -");
} else {
- remaining = (int) (filesize / (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);
+ FILEOFF_TYPE 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) (to_download*elapsed/transferred - elapsed);
+ i = eta % 3600;
+ fprintf(stderr, "%02d:%02d:%02d ETA", eta / 3600, i / 60, i % 60);
+ }
}
- write(fileno(stderr), buf, strlen(buf));
- if (flag == -1) {
+ 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) {
+ } else if (flag == 1) { /* last call to progressmeter */
alarmtimer(0);
- statbytes = 0;
+ transferred = 0;
+ putc('\n', stderr);
}
}
#endif
-/* Original copyright notice which applies to the BB_FEATURE_STATUSBAR stuff,
- * much of which was blatently stolen from openssh. */
-
+/* 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.
* 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>
+ * 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
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * $Id: wget.c,v 1.11 2000/12/07 22:42:11 andersen Exp $
+ * $Id: wget.c,v 1.75 2004/10/08 08:27:40 andersen Exp $
*/
-
-
-
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/
-
-
-