default.c

ELinks is an advanced and well-established feature-rich text mode web (HTTP/FTP/..) browser. ELinks

	end:
	return NULL;
	err_f:
	mem_free(w);
	err:
	return "Error reading terminal specification";
}

void term_wr(struct option *o, unsigned char **s, int *l)
{
	struct term_spec *ts;
	foreachback(ts, term_specs) {
		add_nm(o, s, l);
		add_quoted_to_str(s, l, ts->term);
		add_to_str(s, l, " ");
		add_num_to_str(s, l, ts->mode);
		add_to_str(s, l, " ");
		add_num_to_str(s, l, !!ts->m11_hack + !!ts->braille * 2);
		add_to_str(s, l, " ");
		add_num_to_str(s, l, !!ts->col + !!ts->restrict_852 * 2 + !!ts->block_cursor * 4);
		add_to_str(s, l, " ");
		add_to_str(s, l, get_cp_mime_name(ts->charset));
	}
}

struct list_head driver_params = { &driver_params, &driver_params };

struct driver_param *get_driver_param(unsigned char *n)
{
	struct driver_param *dp;
	foreach(dp, driver_params) if (!strcasecmp(dp->name, n)) return dp;
	dp = mem_calloc(sizeof(struct driver_param) + strlen(n) + 1);
	dp->codepage = get_cp_index("iso-8859-1");
	strcpy(dp->name, n);
	dp->shell = mem_calloc(1);
	dp->nosave = 1;
	add_to_list(driver_params, dp);
	return dp;
}

unsigned char *dp_rd(struct option *o, unsigned char *c)
{
	int cc;
	unsigned char *n, *param, *cp, *shell;
	struct driver_param *dp;
	if (!(n = get_token(&c))) goto err;
	if (!(param = get_token(&c))) {
		mem_free(n);
		goto err;
	}
	if (!(shell = get_token(&c))){
		mem_free(n);
		mem_free(param);
		goto err;
	}
	if (!(cp = get_token(&c))) {
		mem_free(n);
		mem_free(param);
		mem_free(shell);
		goto err;
	}
	if ((cc=get_cp_index(cp)) == -1 || is_cp_special(cc)) {
		mem_free(n);
		mem_free(param);
		mem_free(shell);
		mem_free(cp);
		goto err;
	}
	dp=get_driver_param(n);
	dp->codepage=cc;
	if (dp->param) mem_free(dp->param);
	dp->param=param;
	if (dp->shell) mem_free(dp->shell);
	dp->shell=shell;
	dp->nosave = 0;
	mem_free(cp);
	mem_free(n);
	return NULL;
	err:
	return "Error reading driver mode specification";
}

void dp_wr(struct option *o, unsigned char **s, int *l)
{
	struct driver_param *dp;
	foreachback(dp, driver_params) {
		if ((!dp->param || !*dp->param) && !dp->codepage && !*dp->shell) continue;
		if (dp->nosave) continue;
		add_nm(o, s, l);
		add_quoted_to_str(s, l, dp->name);
		add_to_str(s, l, " ");
		add_quoted_to_str(s, l, dp->param ? dp->param : (unsigned char*)"");
		add_to_str(s, l, " ");
		add_quoted_to_str(s, l, dp->shell);
		add_to_str(s, l, " ");
		add_to_str(s, l, get_cp_mime_name(dp->codepage));
	}
}

unsigned char *gen_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	unsigned char *e;
	int l;
	unsigned char *r;
	if (!*argc) return "Parameter expected";
	e = init_str();
	l = 0;
	add_quoted_to_str(&e, &l, **argv);
	r = o->rd_cfg(o, e);
	mem_free(e);
	if (r) return r;
	(*argv)++; (*argc)--;
	return NULL;
}

unsigned char *lookup_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	ip__address addr;
	unsigned char *p = (unsigned char *)&addr;
	if (!*argc) return "Parameter expected";
	if (*argc >= 2) return "Too many parameters";
	(*argv)++; (*argc)--;
	if (do_real_lookup(*(*argv - 1), &addr)) {
#ifdef HAVE_HERROR
		herror("error");
#else
		fprintf(stderr, "error: host not found\n");
#endif
		return "";
	}
	printf("%d.%d.%d.%d\n", (int)p[0], (int)p[1], (int)p[2], (int)p[3]);
	fflush(stdout);
	return "";
}

unsigned char *version_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	printf("Links " VERSION_STRING "\n");
	fflush(stdout);
	return "";
}

unsigned char *set_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	*(int *)o->ptr = 1;
	return NULL;
}

unsigned char *unset_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	*(int *)o->ptr = 0;
	return NULL;
}

unsigned char *setstr_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	if (!*argc) return "Parameter expected";
	strncpy(o->ptr, **argv, o->max);
	((unsigned char *)o->ptr)[o->max - 1] = 0;
	(*argv)++; (*argc)--;
	return NULL;
}

unsigned char *force_html_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	force_html = 1;
	return NULL;
}

unsigned char *dump_cmd(struct option *o, unsigned char ***argv, int *argc)
{
	if (dmp != o->min && dmp) return "Can't use both -dump and -source";
	dmp = o->min;
	no_connect = 1;
	return NULL;
}

unsigned char *printhelp_cmd(struct option *o, unsigned char ***argv, int *argc)
{
/* Changed and splited - translation is much easier.
 * Print to stdout instead stderr (,,links -help | more''
 * is much better than ,,links -help 2>&1 | more'').
 */
fprintf(stdout, "%s%s%s%s%s%s\n",

("links [options] URL\n"
"Options are:\n"
"\n"
" -g\n"
"  Run in graphics mode.\n"
"\n"
" -no-g\n"
"  Run in text mode (overrides previous -g).\n"
"\n"
" -driver <driver name>\n"
"  Graphics driver to use. Drivers are: x, svgalib, fb, directfb, pmshell,\n"
"    atheos.\n"
"  List of drivers will be shown if you give it an unknown driver.\n"
"  Available drivers depend on your operating system and available libraries.\n"
"\n"
" -mode <graphics mode>\n"
"  Graphics mode. For SVGALIB it is in format COLUMNSxROWSxCOLORS --\n"
"    for example 640x480x256, 800x600x64k, 960x720x16M, 1024x768x16M32\n"
"    List of modes will be shown if you give it an unknown videomode.\n"
"  For framebuffer it is number of pixels in border --- LEFT,TOP,RIGHT,BOTTOM\n"
"    other 3 values are optional --- i.e. -mode 10 will set all borders to 10,\n"
"    -mode 10,20 will set left & right border to 10 and top & bottom to 20.\n"
"  For Xwindow it is size of a window in format WIDTHxHEIGHT.\n"
"\n"
" -display <x-display>\n"
"  Set Xwindow display.\n"
"\n"
" -force-html\n"
"  Treat files with unknown type as html rather than text.\n"
"    (can be toggled with '\\' key)\n"
"\n"
" -source <url>\n"
"  Write unformatted data stream to stdout.\n"
"\n"
" -dump <url>\n"
"  Write formatted document to stdout.\n"
"\n"
" -width <number>\n"
"  For dump, document will be formatted to this screen width (but it can still\n"
"    exceed it if lines can't be broken).\n"
"\n"
" -codepage <codepage>\n"
"  For dump, convert output to specified character set --\n"
"    for eaxmple iso-8859-2, windows-1250.\n"
"\n"
" -anonymous\n"
"  Restrict links so that it can run on an anonymous account.\n"
"  No local file browsing. No downloads. Executing viewers\n"
"    is allowed, but user can't add or modify entries in\n"
"    association table.\n"
"\n"
" -no-connect\n"
"  Runs links as a separate instance - instead of connecting to\n"
"    existing instance.\n"
"\n"
" -download-utime <0>/<1>\n"
"  Set time of downloaded files to last modification time reported by server.\n"
"\n"
" -async-dns <0>/<1>\n"
"  Asynchronous DNS resolver on(1)/off(0).\n"
"\n"
" -max-connections <max>\n"
"  Maximum number of concurrent connections.\n"
"    (default: 10)\n"
"\n"),
(" -max-connections-to-host <max>\n"
"  Maximum number of concurrent connection to a given host.\n"
"    (default: 2)\n"
"\n"
" -retries <retry>\n"
"  Number of retries.\n"
"    (default: 3)\n"
"\n"
" -receive-timeout <sec>\n"
"  Timeout on receive.\n"
"    (default: 120)\n"
"\n"),
(" -unrestartable-receive-timeout <sec>\n"
"  Timeout on non restartable connections.\n"
"    (default: 600)\n"
"\n"
" -format-cache-size <num>\n"
"  Number of formatted document pages cached.\n"
"    (default: 5)\n"
"\n"
" -memory-cache-size <bytes>\n"
"  Cache memory in bytes.\n"
"    (default: 1048576)\n"
"\n"
" -image-cache-size <bytes>\n"
"  Cache memory in bytes.\n"
"    (default: 1048576)\n"
"\n"),
(" -http-proxy <host:port>\n"
"  Host and port number of the HTTP proxy, or blank.\n"
"    (default: blank)\n"
"\n"
" -ftp-proxy <host:port>\n"
"  Host and port number of the FTP proxy, or blank.\n"
"    (default: blank)\n"
"\n"
" -socks-proxy <user@host:port>\n"
"  Userid, host and port of Socks4a, or blank.\n"
"    (default: blank)\n"
"\n"
" -only-proxies <0>/<1>\n"
"    (default 0)\n"
"  \"1\" causes that Links won't initiate any non-proxy connection.\n"
"    It is useful for anonymization with tor or similar networks.\n"
"\n"
" -download-dir <path>\n"
"  Default download directory.\n"
"    (default: actual dir)\n"
"\n"),
(" -language <language>\n"
"  Set user interface language.\n"
"\n"
" -http-bugs.http10 <0>/<1>\n"
"    (default 0)\n"
"  \"1\" forces using only HTTP/1.0 protocol. (useful for buggy servers\n"
"    that claim to be HTTP/1.1 compliant but are not)\n"
"  \"0\" use both HTTP/1.0 and HTTP/1.1.\n"
"\n"
" -http-bugs.allow-blacklist <0>/<1>\n"
"    (default 1)\n"
"  \"1\" defaults to using list of servers that have broken HTTP/1.1 support.\n"
"     When links finds such server, it will retry the request with HTTP/1.0.\n"
"\n"
" -http-bugs.bug-302-redirect <0>/<1>\n"
"    (default 1)\n"
"  Process 302 redirect in a way that is incompatible with RFC1945 and RFC2068,\n"
"    but the same as Netscape and MSIE. Many pages depend on it.\n"
"\n"
" -http-bugs.bug-post-no-keepalive <0>/<1>\n"
"    (default 0)\n"
"  No keepalive connection after post requests. For some buggy servers.\n"
"\n"
" -http-bugs.bug-no-accept-charset <0>/<1>\n"
"    (default 0)\n"
"  Do not send Accept-Charset field of HTTP header. Because it is too long\n"
"    some servers will deny the request. Other servers will convert content\n"
"    to plain ascii when Accept-Charset is missing.\n"
"\n"
" -http-bugs.no-compression <0>/<1>\n"
"    (default 0)\n"
"  \"1\" causes that links won't advertise HTTP compression support (but it\n"
"    will still accept compressed data). Use it when you communicate with\n"
"    server that has broken compression support.\n"
"\n"
" -http-bugs.retry-internal-errors <0>/<1>\n"
"    (default 0)\n"
"  Retry on internal server errors (50x).\n"
"\n"
" -http-bugs.aggressive-cache <0>/<1>\n"
"    (default 1)\n"
"  Always cache everything regardless of server's caching recomendations.\n"
"    Many servers deny caching even if their content is not changing\n"
"    just to get more hits and more money from ads.\n"
"\n"
" -http-referer <0>/<1>/<2>/<3>\n"
"    (default 0)\n"
"  0 - do not send referer\n"
"  1 - send the requested URL as referer\n"
"  2 - send fake referer\n"
"  3 - send real referer\n"
"  4 - send real referer only to the same server\n"
"\n"
" -fake-referer <string>\n"
"  Fake referer value.\n"
"\n"
" -fake-user-agent <string>\n"
"  Fake user agent value.\n"
"\n"
" -ftp.anonymous-password <string>\n"
"  Password for anonymous ftp access.\n"
"\n"
" -ftp.use-passive <0>/<1>\n"
"  Use ftp PASV command to bypass firewalls.\n"
"\n"
" -ftp.fast <0>/<1>\n"
"  Send more ftp commands simultaneously. Faster response when\n"
"    browsing ftp directories, but it is incompatible with RFC\n"
"    and some servers don't like it.\n"
"\n"
" -ftp.set-iptos <0>/<1>\n"
"  Set IP Type-of-service to high throughput on ftp connections.\n"
"\n"
" -menu-font-size <size>\n"
"  Size of font in menu.\n"
"\n"
" -background-color 0xRRGGBB\n"
"  Set menu background color in graphics mode, RRGGBB are hex.\n"
"\n"
" -foreground-color 0xRRGGBB\n"
"  Set menu foreground color in graphics mode.\n"
"\n"
" -scroll-bar-area-color 0xRRGGBB\n"
"  Set color of scroll bar area.\n"
"\n"
" -scroll-bar-bar-color 0xRRGGBB\n"
"  Set color of scroll bar.\n"
"\n"
" -scroll-bar-frame-color 0xRRGGBB\n"
"  Set color of scroll bar frame.\n"
"\n"
" -display-red-gamma <fp-value>\n"
"  Red gamma of display.\n"
"    (default 2.2)\n"
"\n"
" -display-green-gamma <fp-value>\n"
"  Green gamma of display.\n"
"    (default 2.2)\n"
"\n"
" -display-blue-gamma <fp-value>\n"
"  Blue gamma of display.\n"
"    (default 2.2)\n"
"\n"
" -user-gamma <fp-value>\n"
"  Additional gamma.\n"
"    (default 1)\n"
"\n"
" -bfu-aspect <fp-value>\n"
"  Display aspect ration.\n"
"\n"
" -aspect-on <0>/<1>\n"
"  Enable aspect ratio correction.\n"
"\n"
" -dither-letters <0>/<1>\n"
"  Do letter dithering.\n"