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authorDenis Vlasenko2007-09-24 15:04:00 +0000
committerDenis Vlasenko2007-09-24 15:04:00 +0000
commit7710563858a1e1d1a0af81d18222eee0259c00f2 (patch)
tree85fca36c351836e9c92edf4ea1fe028eeccf9733 /networking
parent06783a51409e4245a54c751e426f1c5eaf117e39 (diff)
downloadbusybox-7710563858a1e1d1a0af81d18222eee0259c00f2.zip
busybox-7710563858a1e1d1a0af81d18222eee0259c00f2.tar.gz
wget: code shrink, move data out of bss
Diffstat (limited to 'networking')
-rw-r--r--networking/wget.c76
1 files changed, 48 insertions, 28 deletions
diff --git a/networking/wget.c b/networking/wget.c
index 39d63f1..2cc426f 100644
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -6,10 +6,6 @@
*
*/
-/* 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"
@@ -23,21 +19,44 @@ struct host_info {
char *user;
};
+
+/* 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
+ 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
+ bool 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)
+
+
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 */
-#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 const char *curfile; /* Name of current file being transferred */
enum {
STALLTIME = 5 /* Seconds when xfer considered "stalled" */
};
@@ -105,7 +124,6 @@ int wget_main(int argc, char **argv)
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) */
@@ -114,6 +132,7 @@ int wget_main(int argc, char **argv)
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[] ALIGN1 =
"content-length\0""transfer-encoding\0""chunked\0""location\0";
enum {
@@ -143,6 +162,11 @@ int wget_main(int argc, char **argv)
"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; */
@@ -337,7 +361,7 @@ int wget_main(int argc, char **argv)
}
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);
+ bb_error_msg_and_die("transfer encoding '%s' is not supported", str);
chunked = got_clen = 1;
}
if (key == KEY_location) {
@@ -432,22 +456,18 @@ int wget_main(int argc, char **argv)
}
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)
@@ -457,6 +477,9 @@ int wget_main(int argc, char **argv)
if (!(opt & WGET_OPT_QUIET))
progressmeter(-1);
+ if (chunked)
+ goto get_clen;
+
/* Loops only if chunked */
while (1) {
while (content_len > 0 || !got_clen) {
@@ -485,6 +508,7 @@ int wget_main(int argc, char **argv)
break;
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? */
@@ -501,9 +525,9 @@ int wget_main(int argc, char **argv)
bb_error_msg_and_die("ftp error: %s", buf+4);
ftpcmd("QUIT", NULL, sfp, buf);
}
-done:
- exit(EXIT_SUCCESS);
-}
+
+ return EXIT_SUCCESS;
+} /* wget_main() */
static void parse_url(char *src_url, struct host_info *h)
@@ -688,10 +712,6 @@ static void alarmtimer(int iwait)
static void
progressmeter(int flag)
{
- static unsigned lastupdate_sec;
- static unsigned start_sec;
- static off_t lastsize, totalsize;
-
off_t abbrevsize;
unsigned since_last_update, elapsed;
unsigned ratio;