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- add -s|--spider which only checks if the file exists but does not download it's content. 

Closes #1291
1_6_stable
Bernhard Reutner-Fischer 2007-04-05 10:31:47 +00:00
parent 6d79dd66cb
commit 2e75dcc80d
2 changed files with 20 additions and 12 deletions
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7
include/usage.h
View File

@ -3056,7 +3056,7 @@ USE_FEATURE_RUN_PARTS_FANCY("\n -l Prints names of all matching files even when
" %i File System ID in hex\n" \ " %i File System ID in hex\n" \
" %l Maximum length of filenames\n" \ " %l Maximum length of filenames\n" \
" %n File name\n" \ " %n File name\n" \
" %s Block size (for faster transfers)\n" \ " %s Block size (for faster transfer)\n" \
" %S Fundamental block size (for block counts)\n" \ " %S Fundamental block size (for block counts)\n" \
" %t Type in hex\n" \ " %t Type in hex\n" \
" %T Type in human readable form" \ " %T Type in human readable form" \
@ -3686,13 +3686,14 @@ USE_FEATURE_RUN_PARTS_FANCY("\n -l Prints names of all matching files even when
" 31 46 1365 /etc/passwd\n" " 31 46 1365 /etc/passwd\n"
#define wget_trivial_usage \ #define wget_trivial_usage \
"[-c|--continue] [-q|--quiet] [-O|--output-document file]\n" \ "[-c|--continue] [-s|--spider] [-q|--quiet] [-O|--output-document file]\n" \
" [--header 'header: value'] [-Y|--proxy on/off] [-P DIR]\n" \ " [--header 'header: value'] [-Y|--proxy on/off] [-P DIR]\n" \
" [-U|--user-agent agent] url" " [-U|--user-agent agent] url"
#define wget_full_usage \ #define wget_full_usage \
"Retrieve files via HTTP or FTP" \ "Retrieve files via HTTP or FTP" \
"\n\nOptions:\n" \ "\n\nOptions:\n" \
" -c Continue retrieval of aborted transfers\n" \ " -s Spider mode - only check file existence\n" \
" -c Continue retrieval of aborted transfer\n" \
" -q Quiet\n" \ " -q Quiet\n" \
" -P Set directory prefix to DIR\n" \ " -P Set directory prefix to DIR\n" \
" -O Save to filename ('-' for stdout)\n" \ " -O Save to filename ('-' for stdout)\n" \

25
networking/wget.c
View File

@ -120,18 +120,20 @@ int wget_main(int argc, char **argv)
*/ */
enum { enum {
WGET_OPT_CONTINUE = 0x1, WGET_OPT_CONTINUE = 0x1,
WGET_OPT_QUIET = 0x2, WGET_OPT_SPIDER = 0x2,
WGET_OPT_OUTNAME = 0x4, WGET_OPT_QUIET = 0x4,
WGET_OPT_PREFIX = 0x8, WGET_OPT_OUTNAME = 0x8,
WGET_OPT_PROXY = 0x10, WGET_OPT_PREFIX = 0x10,
WGET_OPT_USER_AGENT = 0x20, WGET_OPT_PROXY = 0x20,
WGET_OPT_PASSIVE = 0x40, WGET_OPT_USER_AGENT = 0x40,
WGET_OPT_HEADER = 0x80, WGET_OPT_PASSIVE = 0x80,
WGET_OPT_HEADER = 0x100,
}; };
#if ENABLE_FEATURE_WGET_LONG_OPTIONS #if ENABLE_FEATURE_WGET_LONG_OPTIONS
static const struct option wget_long_options[] = { static const struct option wget_long_options[] = {
// name, has_arg, flag, val // name, has_arg, flag, val
{ "continue", no_argument, NULL, 'c' }, { "continue", no_argument, NULL, 'c' },
{ "spider", no_argument, NULL, 's' },
{ "quiet", no_argument, NULL, 'q' }, { "quiet", no_argument, NULL, 'q' },
{ "output-document", required_argument, NULL, 'O' }, { "output-document", required_argument, NULL, 'O' },
{ "directory-prefix", required_argument, NULL, 'P' }, { "directory-prefix", required_argument, NULL, 'P' },
@ -144,7 +146,7 @@ int wget_main(int argc, char **argv)
applet_long_options = wget_long_options; applet_long_options = wget_long_options;
#endif #endif
opt_complementary = "-1" USE_FEATURE_WGET_LONG_OPTIONS(":\xfe::"); opt_complementary = "-1" USE_FEATURE_WGET_LONG_OPTIONS(":\xfe::");
opt = getopt32(argc, argv, "cqO:P:Y:U:", opt = getopt32(argc, argv, "csqO:P:Y:U:",
&fname_out, &dir_prefix, &fname_out, &dir_prefix,
&proxy_flag, &user_agent &proxy_flag, &user_agent
USE_FEATURE_WGET_LONG_OPTIONS(, &headers_llist) USE_FEATURE_WGET_LONG_OPTIONS(, &headers_llist)
@ -437,7 +439,11 @@ int wget_main(int argc, char **argv)
if (ftpcmd("RETR ", target.path, sfp, buf) > 150) 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 RETR: %s", buf);
} }
if (opt & WGET_OPT_SPIDER) {
if (ENABLE_FEATURE_CLEAN_UP)
fclose(sfp);
goto done;
}
/* /*
* Retrieve file * Retrieve file
@ -499,6 +505,7 @@ int wget_main(int argc, char **argv)
bb_error_msg_and_die("ftp error: %s", buf+4); bb_error_msg_and_die("ftp error: %s", buf+4);
ftpcmd("QUIT", NULL, sfp, buf); ftpcmd("QUIT", NULL, sfp, buf);
} }
done:
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
} }