*
*/
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <string.h>
-#include <strings.h>
-#include <unistd.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-
-#include <getopt.h>
-
-#include "busybox.h"
+/* We want libc to give us xxx64 functions also */
+/* http://www.unix.org/version2/whatsnew/lfs20mar.html */
+//#define _LARGEFILE64_SOURCE 1
+
+#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;
};
static void parse_url(char *url, struct host_info *h);
-static FILE *open_socket(struct sockaddr_in *s_in);
+static FILE *open_socket(len_and_sockaddr *lsa);
static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
-static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
+static int ftpcmd(const char *s1, const 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 CONFIG_FEATURE_WGET_STATUSBAR
+static off_t content_len; /* Content-length of the file */
+static off_t beg_range; /* Range at which continue begins */
+#if ENABLE_FEATURE_WGET_STATUSBAR
+static off_t transferred; /* Number of bytes transferred so far */
+#endif
+static bool chunked; /* chunked transfer encoding */
+#if ENABLE_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;
+static const char *curfile; /* Name of current file being transferred */
+enum {
+ STALLTIME = 5 /* Seconds when xfer considered "stalled" */
+};
+#else
+static ALWAYS_INLINE void progressmeter(int flag) {}
#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)
+/* 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 += fwrite((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)
{
return ret;
}
-#define close_delete_and_die(s...) { \
- close_and_delete_outfile(output, fname_out, do_continue); \
- bb_error_msg_and_die(s); }
-
-
-#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
-/*
- * Base64-encode character string
- * oops... isn't something similar in uuencode.c?
- * XXX: It would be better to use already existing code
- */
-static char *base64enc(unsigned char *p, char *buf, int len) {
-
- char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
- "0123456789+/";
- char *s = buf;
-
- while(*p) {
- if (s >= buf+len-4)
- bb_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;
+#if ENABLE_FEATURE_WGET_AUTHENTICATION
+/* Base64-encode character string. buf is assumed to be char buf[512]. */
+static char *base64enc_512(char buf[512], const char *str)
+{
+ 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
-#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
-
-#if ENABLE_WGET_LONG_OPTIONS
-static const struct option wget_long_options[] = {
- { "continue", 0, NULL, 'c' },
- { "quiet", 0, NULL, 'q' },
- { "passive-ftp", 0, NULL, 139 },
- { "output-document", 1, NULL, 'O' },
- { "header", 1, NULL, 131 },
- { "directory-prefix",1, NULL, 'P' },
- { "proxy", 1, NULL, 'Y' },
- { 0, 0, 0, 0 }
-};
-#endif
-
+int wget_main(int argc, char **argv);
int wget_main(int argc, char **argv)
{
- int n, try=5, status;
- unsigned long opt;
+ char buf[512];
+ struct host_info server, target;
+ len_and_sockaddr *lsa;
+ int n, status;
int port;
+ int try = 5;
+ unsigned opt;
+ char *str;
char *proxy = 0;
- char *dir_prefix=NULL;
- char *s, buf[512];
- struct stat sbuf;
- 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;
+ char *dir_prefix = NULL;
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ char *extra_headers = NULL;
llist_t *headers_llist = NULL;
+#endif
- 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 */
- FILE *output; /* socket to web server */
- int quiet_flag = FALSE; /* Be verry, verry quiet... */
- int use_proxy = 1; /* Use proxies if env vars are set */
- char *proxy_flag = "on"; /* Use proxies if env vars are set */
-
- /*
- * Crack command line.
- */
- bb_opt_complementally = "-1:\203::";
-#if ENABLE_WGET_LONG_OPTIONS
- bb_applet_long_options = wget_long_options;
+ 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) */
+ bool got_clen = 0; /* got content-length: from server */
+ int output_fd = -1;
+ 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";/* "User-Agent" header field */
+ static const char keywords[] =
+ "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_QUIET = 0x4,
+ WGET_OPT_OUTNAME = 0x8,
+ WGET_OPT_PREFIX = 0x10,
+ WGET_OPT_PROXY = 0x20,
+ WGET_OPT_USER_AGENT = 0x40,
+ WGET_OPT_PASSIVE = 0x80,
+ WGET_OPT_HEADER = 0x100,
+ };
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ static const char wget_longopts[] =
+ /* 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"
+ ;
+ applet_long_options = wget_longopts;
#endif
- opt = bb_getopt_ulflags(argc, argv, "cq\213O:\203:P:Y:",
- &fname_out, &headers_llist,
- &dir_prefix, &proxy_flag);
- if (opt & WGET_OPT_CONTINUE) {
- ++do_continue;
- }
- if (opt & WGET_OPT_QUIET) {
- quiet_flag = TRUE;
- }
+ /* server.allocated = target.allocated = NULL; */
+ opt_complementary = "-1" USE_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
+ opt = getopt32(argc, 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 (opt & WGET_OPT_HEADER) {
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ if (headers_llist) {
+ int size = 1;
+ char *cp;
+ llist_t *ll = headers_llist;
+ while (ll) {
+ size += strlen(ll->data) + 2;
+ ll = ll->link;
+ }
+ extra_headers = cp = xmalloc(size);
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;
+ cp += sprintf(cp, "%s\r\n", headers_llist->data);
headers_llist = headers_llist->link;
}
}
+#endif
parse_url(argv[optind], &target);
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) {
- parse_url(bb_xstrdup(proxy), &server);
+ parse_url(proxy, &server);
} else {
use_proxy = 0;
}
if (!fname_out) {
// 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 =
+ if (!last_char_is(target.path, '/')) {
+ fname_out = bb_get_last_path_component(target.path);
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ curfile = fname_out;
#endif
- bb_get_last_path_component(target.path);
}
- if (fname_out==NULL || strlen(fname_out)<1) {
- fname_out =
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
- curfile =
+ if (!fname_out || !fname_out[0]) {
+ /* bb_get_last_path_component writes
+ * to last '/' only. We don't have one here... */
+ fname_out = (char*)"index.html";
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ curfile = fname_out;
#endif
- "index.html";
}
if (dir_prefix != NULL)
fname_out = concat_path_file(dir_prefix, fname_out);
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+#if ENABLE_FEATURE_WGET_STATUSBAR
} else {
curfile = bb_get_last_path_component(fname_out);
#endif
}
- if (do_continue && !fname_out)
- bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
-
-
- /*
- * Open the output file stream.
- */
- if (strcmp(fname_out, "-") == 0) {
- output = stdout;
- quiet_flag = TRUE;
- } else {
- output = bb_xfopen(fname_out, (do_continue ? "a" : "w"));
+ /* 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 (do_continue) {
- if (fstat(fileno(output), &sbuf) < 0)
- bb_perror_msg_and_die("fstat()");
- if (sbuf.st_size > 0)
- beg_range = sbuf.st_size;
- else
- do_continue = 0;
+ if (opt & WGET_OPT_CONTINUE) {
+ output_fd = open(fname_out, O_WRONLY);
+ if (output_fd >= 0) {
+ beg_range = xlseek(output_fd, 0, SEEK_END);
+ }
+ /* 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 (quiet_flag==FALSE) {
- fprintf(stdout, "Connecting to %s[%s]:%d\n",
- server.host, inet_ntoa(s_in.sin_addr), ntohs(server.port));
+ 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));
+ /* We leak result of xmalloc_sockaddr2dotted */
}
if (use_proxy || !target.is_ftp) {
do {
got_clen = chunked = 0;
- if (! --try)
- close_delete_and_die("too many redirections");
+ 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(&s_in);
+ sfp = open_socket(lsa);
- /*
- * Send HTTP request.
- */
+ /* 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,
+ fprintf(sfp, "GET %stp://%s/%s HTTP/1.1\r\n",
target.is_ftp ? "f" : "ht", target.host,
- ntohs(target.port), target.path);
+ 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);
+ fprintf(sfp, "Host: %s\r\nUser-Agent: %s\r\n",
+ target.host, user_agent);
-#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
+#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 (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");
+ if (beg_range)
+ fprintf(sfp, "Range: bytes=%"OFF_FMT"d-\r\n", beg_range);
+#if ENABLE_FEATURE_WGET_LONG_OPTIONS
+ if (extra_headers)
+ fputs(extra_headers, sfp);
+#endif
+ fprintf(sfp, "Connection: close\r\n\r\n");
/*
* Retrieve HTTP response line and check for "200" status code.
*/
-read_response:
+ 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:
+ bb_error_msg_and_die("no response from server");
+
+ str = buf;
+ str = skip_non_whitespace(str);
+ str = skip_whitespace(str);
+ // FIXME: no error check
+ // xatou wouldn't work: "200 OK"
+ status = atoi(str);
+ switch (status) {
+ case 0:
+ case 100:
+ while (gethdr(buf, sizeof(buf), sfp, &n) != NULL)
+ /* eat all remaining headers */;
+ goto read_response;
+ case 200:
+ break;
+ case 300: /* redirection */
+ case 301:
+ case 302:
+ case 303:
+ break;
+ case 206:
+ if (beg_range)
break;
- case 206:
- if (do_continue)
- break;
- /*FALLTHRU*/
- default:
- chomp(buf);
- close_delete_and_die("server returned error %d: %s", atoi(s), buf);
+ /*FALLTHRU*/
+ default:
+ /* Show first line only and kill any ESC tricks */
+ buf[strcspn(buf, "\n\r\x1b")] = '\0';
+ bb_error_msg_and_die("server returned error: %s", buf);
}
/*
* Retrieve HTTP headers.
*/
- while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
- if (strcasecmp(buf, "content-length") == 0) {
- unsigned long value;
- if (safe_strtoul(s, &value)) {
- close_delete_and_die("content-length %s is garbage", s);
+ 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", str);
}
- filesize = value;
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 (key == KEY_transfer_encoding) {
+ if (index_in_strings(keywords, str_tolower(str)) + 1 != KEY_chunked)
+ bb_error_msg_and_die("server wants to do %s transfer encoding", str);
+ chunked = got_clen = 1;
}
- if (strcasecmp(buf, "location") == 0) {
- if (s[0] == '/')
- target.path = bb_xstrdup(s+1);
+ if (key == KEY_location) {
+ if (str[0] == '/')
+ /* free(target.allocated); */
+ target.path = /* target.allocated = */ xstrdup(str+1);
else {
- parse_url(bb_xstrdup(s), &target);
+ parse_url(str, &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;
+ free(lsa);
+ lsa = xhost2sockaddr(server.host, server.port);
break;
}
}
}
- } while(status >= 300);
+ } while (status >= 300);
dfp = sfp;
- }
- else
- {
+
+ } else {
+
/*
* FTP session
*/
- if (! target.user)
- target.user = bb_xstrdup("anonymous:busybox@");
+ if (!target.user)
+ target.user = xstrdup("anonymous:busybox@");
- sfp = open_socket(&s_in);
+ sfp = open_socket(lsa);
if (ftpcmd(NULL, NULL, sfp, buf) != 220)
- close_delete_and_die("%s", buf+4);
+ bb_error_msg_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:
+ str = strchr(target.user, ':');
+ if (str)
+ *(str++) = '\0';
+ switch (ftpcmd("USER ", target.user, sfp, buf)) {
+ case 230:
+ break;
+ case 331:
+ if (ftpcmd("PASS ", str, sfp, buf) == 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);
+ /* FALLTHRU (failed login) */
+ default:
+ bb_error_msg_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) {
- unsigned long value;
- if (safe_strtoul(buf+4, &value)) {
- close_delete_and_die("SIZE value is garbage");
+ if (ftpcmd("SIZE ", target.path, sfp, buf) == 213) {
+ content_len = BB_STRTOOFF(buf+4, NULL, 10);
+ if (errno || content_len < 0) {
+ bb_error_msg_and_die("SIZE value is garbage");
}
- filesize = value;
got_clen = 1;
}
/*
* 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;
- s_in.sin_port = htons(port);
- dfp = open_socket(&s_in);
-
- 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("PASV", NULL, sfp, buf) != 227) {
+ pasv_error:
+ bb_error_msg_and_die("bad response to %s: %s", "PASV", buf);
+ }
+ // 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
+ 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 (beg_range) {
+ sprintf(buf, "REST %"OFF_FMT"d", beg_range);
+ if (ftpcmd(buf, NULL, sfp, buf) == 350)
+ content_len -= beg_range;
}
- if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
- close_delete_and_die("RETR: %s", buf+4);
-
+ if (ftpcmd("RETR ", target.path, sfp, buf) > 150)
+ bb_error_msg_and_die("bad response to RETR: %s", buf);
+ }
+ if (opt & WGET_OPT_SPIDER) {
+ if (ENABLE_FEATURE_CLEAN_UP)
+ fclose(sfp);
+ goto done;
}
-
/*
* Retrieve file
*/
if (chunked) {
fgets(buf, sizeof(buf), dfp);
- filesize = strtol(buf, (char **) NULL, 16);
+ content_len = STRTOOFF(buf, NULL, 16);
+ /* FIXME: error check?? */
}
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
- if (quiet_flag==FALSE)
+
+ /* 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 (!(opt & WGET_OPT_QUIET))
progressmeter(-1);
-#endif
+
do {
- while ((filesize > 0 || !got_clen) && (n = safe_fread(buf, 1, ((chunked || got_clen) && (filesize < sizeof(buf)) ? filesize : sizeof(buf)), dfp)) > 0) {
- if (safe_fwrite(buf, 1, n, output) != n) {
+ 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, 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
- statbytes+=n;
+#if ENABLE_FEATURE_WGET_STATUSBAR
+ transferred += n;
#endif
if (got_clen) {
- filesize -= n;
+ content_len -= n;
}
}
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) {
+ content_len = STRTOOFF(buf, NULL, 16);
+ /* FIXME: error check? */
+ if (content_len == 0) {
chunked = 0; /* all done! */
}
}
bb_perror_msg_and_die(bb_msg_read_error);
}
} while (chunked);
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
- if (quiet_flag==FALSE)
+
+ if (!(opt & WGET_OPT_QUIET))
progressmeter(1);
-#endif
+
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);
}
+done:
exit(EXIT_SUCCESS);
}
-void parse_url(char *url, struct host_info *h)
+static void parse_url(char *src_url, struct host_info *h)
{
- char *cp, *sp, *up, *pp;
+ 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", "tfp", 21);
+ 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, '/');
- if (sp) {
- *sp++ = '\0';
+ 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;
- } else
- h->path = bb_xstrdup("");
+ }
- up = strrchr(h->host, '@');
- if (up != NULL) {
+ sp = strrchr(h->host, '@');
+ h->user = NULL;
+ if (sp != NULL) {
h->user = h->host;
- *up++ = '\0';
- h->host = up;
- } else
- h->user = NULL;
-
- pp = h->host;
-
-#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
- if (h->host[0] == '[') {
- char *ep;
-
- ep = h->host + 1;
- while (*ep == ':' || isxdigit (*ep))
- ep++;
- if (*ep == ']') {
- h->host++;
- *ep = '\0';
- pp = ep + 1;
- }
+ *sp = '\0';
+ h->host = sp + 1;
}
-#endif
- cp = strchr(pp, ':');
- if (cp != NULL) {
- *cp++ = '\0';
- h->port = htons(atoi(cp));
- }
+ sp = h->host;
}
-FILE *open_socket(struct sockaddr_in *s_in)
+static FILE *open_socket(len_and_sockaddr *lsa)
{
FILE *fp;
- fp = fdopen(xconnect(s_in), "r+");
+ /* 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()");
+ 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;
return NULL;
/* see if we are at the end of the headers */
- for (s = buf ; *s == '\r' ; ++s)
+ 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)
+ for (s = buf; isalnum(*s) || *s == '-'; ++s)
*s = tolower(*s);
/* verify we are at the end of the header name */
bb_error_msg_and_die("bad header line: %s", buf);
/* locate the start of the header value */
- for (*s++ = '\0' ; *s == ' ' || *s == '\t' ; ++s)
+ for (*s++ = '\0'; *s == ' ' || *s == '\t'; ++s)
;
hdrval = s;
return hdrval;
}
-static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
+static int ftpcmd(const char *s1, const char *s2, FILE *fp, char *buf)
{
+ int result;
if (s1) {
- if (!s2) s2="";
+ if (!s2) s2 = "";
fprintf(fp, "%s%s\r\n", s1, s2);
fflush(fp);
}
char *buf_ptr;
if (fgets(buf, 510, fp) == NULL) {
- bb_perror_msg_and_die("fgets()");
+ 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] != ' ');
+ } while (!isdigit(buf[0]) || buf[3] != ' ');
- return atoi(buf);
+ buf[3] = '\0';
+ result = xatoi_u(buf);
+ buf[3] = ' ';
+ return result;
}
-#ifdef CONFIG_FEATURE_WGET_STATUSBAR
+#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=0;
+ int width;
get_terminal_width_height(0, &width, NULL);
- return (width);
+ return width;
}
static void
errno = save_errno;
}
-static 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);
}
-
static void
progressmeter(int flag)
{
- static const char prefixes[] = " KMGTP";
- static struct timeval lastupdate;
+ static unsigned lastupdate_sec;
+ static unsigned start_sec;
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;
+
+ 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 = filesize; /* as filesize changes.. */
+ totalsize = content_len + beg_range; /* as content_len changes.. */
}
- (void) gettimeofday(&now, (struct timezone *) 0);
- cursize = statbytes;
+ ratio = 100;
if (totalsize != 0 && !chunked) {
- ratio = 100.0 * cursize / totalsize;
- ratio = MAX(ratio, 0);
- ratio = MIN(ratio, 100);
- } else
- ratio = 100;
+ /* long long helps to have it working even if !LFS */
+ ratio = (unsigned) (100ULL * (transferred+beg_range) / totalsize);
+ if (ratio > 100) ratio = 100;
+ }
- snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
+ fprintf(stderr, "\r%-20.20s%4d%% ", curfile, ratio);
- barlength = getttywidth() - 51;
+ barlength = getttywidth() - 49;
if (barlength > 0) {
+ /* god bless gcc for variable arrays :) */
i = barlength * ratio / 100;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "|%.*s%*s|", i,
- "*****************************************************************************"
- "*****************************************************************************",
- barlength - i, "");
+ {
+ char buf[i+1];
+ memset(buf, '*', i);
+ buf[i] = '\0';
+ fprintf(stderr, "|%s%*s|", buf, barlength - i, "");
+ }
}
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');
-
- 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;
+ /* 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++?
+// FIXME: get rid of alarmtimer + updateprogressmeter mess
+
+ 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;
}
- wait.tv_sec = 0;
+ since_last_update = 0; /* we are un-stalled now */
}
- 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");
+ elapsed -= start_sec; /* now it's "elapsed since start" */
+
+ if (since_last_update >= STALLTIME) {
+ fprintf(stderr, " - stalled -");
} 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);
+ 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);
+ }
}
- write(STDERR_FILENO, 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
+#endif /* FEATURE_WGET_STATUSBAR */
/* Original copyright notice which applies to the CONFIG_FEATURE_WGET_STATUSBAR stuff,
* much of which was blatantly stolen from openssh. */
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * $Id: wget.c,v 1.75 2004/10/08 08:27:40 andersen Exp $
*/
projects / oweals / busybox.git / blobdiff