1 /* Reading/parsing the initialization file.
2 Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001, 2003
3 Free Software Foundation, Inc.
5 This file is part of GNU Wget.
7 GNU Wget is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GNU Wget is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Wget; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 In addition, as a special exception, the Free Software Foundation
22 gives permission to link the code of its release of Wget with the
23 OpenSSL project's "OpenSSL" library (or with modified versions of it
24 that use the same license as the "OpenSSL" library), and distribute
25 the linked executables. You must obey the GNU General Public License
26 in all respects for all of the code used other than "OpenSSL". If you
27 modify this file, you may extend this exception to your version of the
28 file, but you are not obligated to do so. If you do not wish to do
29 so, delete this exception statement from your version. */
34 #include <sys/types.h>
49 # include <sys/socket.h>
50 # include <netinet/in.h>
52 # include <arpa/inet.h>
66 #include "cookies.h" /* for cookie_jar_delete */
68 #include "recur.h" /* for INFINITE_RECURSION */
74 extern struct cookie_jar *wget_cookie_jar;
76 /* We want tilde expansion enabled only when reading `.wgetrc' lines;
77 otherwise, it will be performed by the shell. This variable will
78 be set by the wgetrc-reading function. */
80 static int enable_tilde_expansion;
83 #define CMD_DECLARE(func) static int func \
84 PARAMS ((const char *, const char *, void *))
86 CMD_DECLARE (cmd_boolean);
87 CMD_DECLARE (cmd_bytes);
88 CMD_DECLARE (cmd_bytes_large);
89 CMD_DECLARE (cmd_directory_vector);
90 CMD_DECLARE (cmd_lockable_boolean);
91 CMD_DECLARE (cmd_number);
92 CMD_DECLARE (cmd_number_inf);
93 CMD_DECLARE (cmd_string);
94 CMD_DECLARE (cmd_file);
95 CMD_DECLARE (cmd_directory);
96 CMD_DECLARE (cmd_time);
97 CMD_DECLARE (cmd_vector);
99 CMD_DECLARE (cmd_spec_dirstruct);
100 CMD_DECLARE (cmd_spec_header);
101 CMD_DECLARE (cmd_spec_htmlify);
102 CMD_DECLARE (cmd_spec_mirror);
103 CMD_DECLARE (cmd_spec_progress);
104 CMD_DECLARE (cmd_spec_recursive);
105 CMD_DECLARE (cmd_spec_restrict_file_names);
106 CMD_DECLARE (cmd_spec_timeout);
107 CMD_DECLARE (cmd_spec_useragent);
109 /* List of recognized commands, each consisting of name, closure and
110 function. When adding a new command, simply add it to the list,
111 but be sure to keep the list sorted alphabetically, as
112 command_by_name depends on it. Also, be sure to add any entries
113 that allocate memory (e.g. cmd_string and cmd_vector guys) to the
114 cleanup() function below. */
119 int (*action) PARAMS ((const char *, const char *, void *));
121 { "accept", &opt.accepts, cmd_vector },
122 { "addhostdir", &opt.add_hostdir, cmd_boolean },
123 { "alwaysrest", &opt.always_rest, cmd_boolean }, /* deprecated */
124 { "background", &opt.background, cmd_boolean },
125 { "backupconverted", &opt.backup_converted, cmd_boolean },
126 { "backups", &opt.backups, cmd_number },
127 { "base", &opt.base_href, cmd_string },
128 { "bindaddress", &opt.bind_address, cmd_string },
129 { "cache", &opt.allow_cache, cmd_boolean },
130 { "connecttimeout", &opt.connect_timeout, cmd_time },
131 { "continue", &opt.always_rest, cmd_boolean },
132 { "convertlinks", &opt.convert_links, cmd_boolean },
133 { "cookies", &opt.cookies, cmd_boolean },
134 { "cutdirs", &opt.cut_dirs, cmd_number },
136 { "debug", &opt.debug, cmd_boolean },
138 { "deleteafter", &opt.delete_after, cmd_boolean },
139 { "dirprefix", &opt.dir_prefix, cmd_directory },
140 { "dirstruct", NULL, cmd_spec_dirstruct },
141 { "dnscache", &opt.dns_cache, cmd_boolean },
142 { "dnstimeout", &opt.dns_timeout, cmd_time },
143 { "domains", &opt.domains, cmd_vector },
144 { "dotbytes", &opt.dot_bytes, cmd_bytes },
145 { "dotsinline", &opt.dots_in_line, cmd_number },
146 { "dotspacing", &opt.dot_spacing, cmd_number },
147 { "dotstyle", &opt.dot_style, cmd_string },
149 { "egdfile", &opt.sslegdsock, cmd_file },
151 { "excludedirectories", &opt.excludes, cmd_directory_vector },
152 { "excludedomains", &opt.exclude_domains, cmd_vector },
153 { "followftp", &opt.follow_ftp, cmd_boolean },
154 { "followtags", &opt.follow_tags, cmd_vector },
155 { "forcehtml", &opt.force_html, cmd_boolean },
156 { "ftpproxy", &opt.ftp_proxy, cmd_string },
157 { "glob", &opt.ftp_glob, cmd_boolean },
158 { "header", NULL, cmd_spec_header },
159 { "htmlextension", &opt.html_extension, cmd_boolean },
160 { "htmlify", NULL, cmd_spec_htmlify },
161 { "httpkeepalive", &opt.http_keep_alive, cmd_boolean },
162 { "httppasswd", &opt.http_passwd, cmd_string },
163 { "httpproxy", &opt.http_proxy, cmd_string },
164 { "httpsproxy", &opt.https_proxy, cmd_string },
165 { "httpuser", &opt.http_user, cmd_string },
166 { "ignorelength", &opt.ignore_length, cmd_boolean },
167 { "ignoretags", &opt.ignore_tags, cmd_vector },
168 { "includedirectories", &opt.includes, cmd_directory_vector },
169 { "input", &opt.input_filename, cmd_file },
170 { "keepsessioncookies", &opt.keep_session_cookies, cmd_boolean },
171 { "killlonger", &opt.kill_longer, cmd_boolean },
172 { "limitrate", &opt.limit_rate, cmd_bytes },
173 { "loadcookies", &opt.cookies_input, cmd_file },
174 { "logfile", &opt.lfilename, cmd_file },
175 { "login", &opt.ftp_acc, cmd_string },
176 { "mirror", NULL, cmd_spec_mirror },
177 { "netrc", &opt.netrc, cmd_boolean },
178 { "noclobber", &opt.noclobber, cmd_boolean },
179 { "noparent", &opt.no_parent, cmd_boolean },
180 { "noproxy", &opt.no_proxy, cmd_vector },
181 { "numtries", &opt.ntry, cmd_number_inf },/* deprecated*/
182 { "outputdocument", &opt.output_document, cmd_file },
183 { "pagerequisites", &opt.page_requisites, cmd_boolean },
184 { "passiveftp", &opt.ftp_pasv, cmd_lockable_boolean },
185 { "passwd", &opt.ftp_pass, cmd_string },
186 { "postdata", &opt.post_data, cmd_string },
187 { "postfile", &opt.post_file_name, cmd_file },
188 { "progress", &opt.progress_type, cmd_spec_progress },
189 { "proxypasswd", &opt.proxy_passwd, cmd_string },
190 { "proxyuser", &opt.proxy_user, cmd_string },
191 { "quiet", &opt.quiet, cmd_boolean },
192 { "quota", &opt.quota, cmd_bytes_large },
193 { "randomwait", &opt.random_wait, cmd_boolean },
194 { "readtimeout", &opt.read_timeout, cmd_time },
195 { "reclevel", &opt.reclevel, cmd_number_inf },
196 { "recursive", NULL, cmd_spec_recursive },
197 { "referer", &opt.referer, cmd_string },
198 { "reject", &opt.rejects, cmd_vector },
199 { "relativeonly", &opt.relative_only, cmd_boolean },
200 { "removelisting", &opt.remove_listing, cmd_boolean },
201 { "restrictfilenames", NULL, cmd_spec_restrict_file_names },
202 { "retrsymlinks", &opt.retr_symlinks, cmd_boolean },
203 { "retryconnrefused", &opt.retry_connrefused, cmd_boolean },
204 { "robots", &opt.use_robots, cmd_boolean },
205 { "savecookies", &opt.cookies_output, cmd_file },
206 { "saveheaders", &opt.save_headers, cmd_boolean },
207 { "serverresponse", &opt.server_response, cmd_boolean },
208 { "spanhosts", &opt.spanhost, cmd_boolean },
209 { "spider", &opt.spider, cmd_boolean },
211 { "sslcadir", &opt.sslcadir, cmd_directory },
212 { "sslcafile", &opt.sslcafile, cmd_file },
213 { "sslcertfile", &opt.sslcertfile, cmd_file },
214 { "sslcertkey", &opt.sslcertkey, cmd_file },
215 { "sslcerttype", &opt.sslcerttype, cmd_number },
216 { "sslcheckcert", &opt.sslcheckcert, cmd_number },
217 { "sslprotocol", &opt.sslprotocol, cmd_number },
218 #endif /* HAVE_SSL */
219 { "strictcomments", &opt.strict_comments, cmd_boolean },
220 { "timeout", NULL, cmd_spec_timeout },
221 { "timestamping", &opt.timestamping, cmd_boolean },
222 { "tries", &opt.ntry, cmd_number_inf },
223 { "useproxy", &opt.use_proxy, cmd_boolean },
224 { "useragent", NULL, cmd_spec_useragent },
225 { "verbose", &opt.verbose, cmd_boolean },
226 { "wait", &opt.wait, cmd_time },
227 { "waitretry", &opt.waitretry, cmd_time }
230 /* Look up CMDNAME in the commands[] and return its position in the
231 array. If CMDNAME is not found, return -1. */
234 command_by_name (const char *cmdname)
236 /* Use binary search for speed. Wget has ~100 commands, which
237 guarantees a worst case performance of 7 string comparisons. */
238 int lo = 0, hi = countof (commands) - 1;
242 int mid = (lo + hi) >> 1;
243 int cmp = strcasecmp (cmdname, commands[mid].name);
254 /* Reset the variables to default values. */
260 /* Most of the default values are 0. Just reset everything, and
261 fill in the non-zero values. Note that initializing pointers to
262 NULL this way is technically illegal, but porting Wget to a
263 machine where NULL is not all-zero bit pattern will be the least
264 of the implementors' worries. */
272 opt.ftp_acc = xstrdup ("anonymous");
273 opt.ftp_pass = xstrdup ("-wget@");
277 opt.http_keep_alive = 1;
279 tmp = getenv ("no_proxy");
281 opt.no_proxy = sepstring (tmp);
284 opt.read_timeout = 900;
287 opt.remove_listing = 1;
289 opt.dot_bytes = 1024;
290 opt.dot_spacing = 10;
291 opt.dots_in_line = 50;
295 /* The default for file name restriction defaults to the OS type. */
296 #if !defined(WINDOWS) && !defined(__CYGWIN__)
297 opt.restrict_files_os = restrict_unix;
299 opt.restrict_files_os = restrict_windows;
301 opt.restrict_files_ctrl = 1;
304 /* Return the user's home directory (strdup-ed), or NULL if none is
309 char *home = getenv ("HOME");
314 /* If HOME is not defined, try getting it from the password
316 struct passwd *pwd = getpwuid (getuid ());
317 if (!pwd || !pwd->pw_dir)
322 /* #### Maybe I should grab home_dir from registry, but the best
323 that I could get from there is user's Start menu. It sucks! */
327 return home ? xstrdup (home) : NULL;
330 /* Return the path to the user's .wgetrc. This is either the value of
331 `WGETRC' environment variable, or `$HOME/.wgetrc'.
333 If the `WGETRC' variable exists but the file does not exist, the
334 function will exit(). */
336 wgetrc_file_name (void)
341 /* Try the environment. */
342 env = getenv ("WGETRC");
345 if (!file_exists_p (env))
347 fprintf (stderr, _("%s: WGETRC points to %s, which doesn't exist.\n"),
351 return xstrdup (env);
355 /* If that failed, try $HOME/.wgetrc. */
359 file = (char *)xmalloc (strlen (home) + 1 + strlen (".wgetrc") + 1);
360 sprintf (file, "%s/.wgetrc", home);
364 /* Under Windows, "home" is (for the purposes of this function) the
365 directory where `wget.exe' resides, and `wget.ini' will be used
366 as file name. SYSTEM_WGETRC should not be defined under WINDOWS.
368 It is not as trivial as I assumed, because on 95 argv[0] is full
369 path, but on NT you get what you typed in command line. --dbudor */
373 file = (char *)xmalloc (strlen (home) + strlen ("wget.ini") + 1);
374 sprintf (file, "%swget.ini", home);
380 if (!file_exists_p (file))
388 static int parse_line PARAMS ((const char *, char **, char **, int *));
389 static int setval_internal PARAMS ((int, const char *, const char *));
391 /* Initialize variables from a wgetrc file. */
394 run_wgetrc (const char *file)
400 fp = fopen (file, "rb");
403 fprintf (stderr, _("%s: Cannot read %s (%s).\n"), exec_name,
404 file, strerror (errno));
407 enable_tilde_expansion = 1;
409 while ((line = read_whole_line (fp)))
414 /* Parse the line. */
415 status = parse_line (line, &com, &val, &comind);
417 /* If everything is OK, set the value. */
420 if (!setval_internal (comind, com, val))
421 fprintf (stderr, _("%s: Error in %s at line %d.\n"), exec_name,
426 else if (status == 0)
427 fprintf (stderr, _("%s: Error in %s at line %d.\n"), exec_name,
431 enable_tilde_expansion = 0;
435 /* Initialize the defaults and run the system wgetrc and user's own
442 /* Load the hard-coded defaults. */
445 /* If SYSTEM_WGETRC is defined, use it. */
447 if (file_exists_p (SYSTEM_WGETRC))
448 run_wgetrc (SYSTEM_WGETRC);
450 /* Override it with your own, if one exists. */
451 file = wgetrc_file_name ();
454 /* #### We should canonicalize `file' and SYSTEM_WGETRC with
455 something like realpath() before comparing them with `strcmp' */
457 if (!strcmp (file, SYSTEM_WGETRC))
459 fprintf (stderr, _("\
460 %s: Warning: Both system and user wgetrc point to `%s'.\n"),
470 /* Remove dashes and underscores from S, modifying S in the
476 char *t = s; /* t - tortoise */
477 char *h = s; /* h - hare */
479 if (*h == '_' || *h == '-')
486 /* Parse the line pointed by line, with the syntax:
487 <sp>* command <sp>* = <sp>* value <sp>*
488 Uses malloc to allocate space for command and value.
489 If the line is invalid, data is freed and 0 is returned.
496 In case of success, *COM and *VAL point to freshly allocated
497 strings, and *COMIND points to com's index. In case of error or
498 empty line, those values are unaffected. */
501 parse_line (const char *line, char **com, char **val, int *comind)
504 const char *end = line + strlen (line);
505 const char *cmdstart, *cmdend;
506 const char *valstart, *valend;
511 /* Skip leading and trailing whitespace. */
512 while (*line && ISSPACE (*line))
514 while (end > line && ISSPACE (end[-1]))
517 /* Skip empty lines and comments. */
518 if (!*line || *line == '#')
524 while (p < end && (ISALPHA (*p) || *p == '_' || *p == '-'))
528 /* Skip '=', as well as any space before or after it. */
529 while (p < end && ISSPACE (*p))
531 if (p == end || *p != '=')
534 while (p < end && ISSPACE (*p))
540 /* The line now known to be syntactically correct. Check whether
541 the command is valid. */
542 BOUNDED_TO_ALLOCA (cmdstart, cmdend, cmdcopy);
544 ind = command_by_name (cmdcopy);
548 /* The command is valid. Now fill in the values and report success
551 *com = strdupdelim (cmdstart, cmdend);
552 *val = strdupdelim (valstart, valend);
556 /* Run commands[comind].action. */
559 setval_internal (int comind, const char *com, const char *val)
561 assert (0 <= comind && comind < countof (commands));
562 return ((*commands[comind].action) (com, val, commands[comind].closure));
565 /* Run command COM with value VAL. If running the command produces an
566 error, report the error and exit.
568 This is intended to be called from main() to modify Wget's behavior
569 through command-line switches. Since COM is hard-coded in main(),
570 it is not canonicalized, and this aborts when COM is not found.
572 If COMIND's are exported to init.h, this function will be changed
573 to accept COMIND directly. */
576 setoptval (const char *com, const char *val)
578 if (!setval_internal (command_by_name (com), com, val))
582 /* Parse OPT into command and value and run it. For example,
583 run_command("foo=bar") is equivalent to setoptval("foo", "bar").
584 This is used by the `--execute' flag in main.c. */
587 run_command (const char *opt)
591 int status = parse_line (opt, &com, &val, &comind);
594 if (!setval_internal (comind, com, val))
599 else if (status == 0)
601 fprintf (stderr, _("%s: Invalid --execute command `%s'\n"),
607 /* Generic helper functions, for use with `commands'. */
609 #define CMP1(p, c0) (TOLOWER((p)[0]) == (c0) && (p)[1] == '\0')
611 #define CMP2(p, c0, c1) (TOLOWER((p)[0]) == (c0) \
612 && TOLOWER((p)[1]) == (c1) \
615 #define CMP3(p, c0, c1, c2) (TOLOWER((p)[0]) == (c0) \
616 && TOLOWER((p)[1]) == (c1) \
617 && TOLOWER((p)[2]) == (c2) \
621 /* Store the boolean value from VAL to CLOSURE. COM is ignored,
622 except for error messages. */
624 cmd_boolean (const char *com, const char *val, void *closure)
628 if (CMP2 (val, 'o', 'n') || CMP3 (val, 'y', 'e', 's') || CMP1 (val, '1'))
629 /* "on", "yes" and "1" mean true. */
631 else if (CMP3 (val, 'o', 'f', 'f') || CMP2 (val, 'n', 'o') || CMP1 (val, '0'))
632 /* "off", "no" and "0" mean false. */
637 _("%s: %s: Invalid boolean `%s', use `on' or `off'.\n"),
638 exec_name, com, val);
642 *(int *)closure = bool_value;
646 /* Store the lockable_boolean {2, 1, 0, -1} value from VAL to CLOSURE.
647 COM is ignored, except for error messages. Values 2 and -1
648 indicate that once defined, the value may not be changed by
649 successive wgetrc files or command-line arguments.
651 Values: 2 - Enable a particular option for good ("always")
652 1 - Enable an option ("on")
653 0 - Disable an option ("off")
654 -1 - Disable an option for good ("never") */
656 cmd_lockable_boolean (const char *com, const char *val, void *closure)
658 int lockable_boolean_value;
660 int oldval = *(int *)closure;
663 * If a config file said "always" or "never", don't allow command line
664 * arguments to override the config file.
666 if (oldval == -1 || oldval == 2)
669 if (0 == strcasecmp (val, "always") || CMP1 (val, '2'))
670 lockable_boolean_value = 2;
671 else if (CMP2 (val, 'o', 'n') || CMP3 (val, 'y', 'e', 's') || CMP1 (val, '1'))
672 lockable_boolean_value = 1;
673 else if (CMP3 (val, 'o', 'f', 'f') || CMP2 (val, 'n', 'o') || CMP1 (val, '0'))
674 lockable_boolean_value = 0;
675 else if (0 == strcasecmp (val, "never") || CMP2 (val, '-', '1'))
676 lockable_boolean_value = -1;
680 _("%s: %s: Invalid boolean `%s', use always, on, off, or never.\n"),
681 exec_name, com, val);
685 *(int *)closure = lockable_boolean_value;
689 static int simple_atoi PARAMS ((const char *, const char *, int *));
691 /* Set the non-negative integer value from VAL to CLOSURE. With
692 incorrect specification, the number remains unchanged. */
694 cmd_number (const char *com, const char *val, void *closure)
696 if (!simple_atoi (val, val + strlen (val), closure))
698 fprintf (stderr, _("%s: %s: Invalid number `%s'.\n"),
699 exec_name, com, val);
705 /* Similar to cmd_number(), only accepts `inf' as a synonym for 0. */
707 cmd_number_inf (const char *com, const char *val, void *closure)
709 if (!strcasecmp (val, "inf"))
714 return cmd_number (com, val, closure);
717 /* Copy (strdup) the string at COM to a new location and place a
718 pointer to *CLOSURE. */
720 cmd_string (const char *com, const char *val, void *closure)
722 char **pstring = (char **)closure;
724 xfree_null (*pstring);
725 *pstring = xstrdup (val);
730 # define ISSEP(c) ((c) == '/')
732 # define ISSEP(c) ((c) == '/' || (c) == '\\')
735 /* Like the above, but handles tilde-expansion when reading a user's
736 `.wgetrc'. In that case, and if VAL begins with `~', the tilde
737 gets expanded to the user's home directory. */
739 cmd_file (const char *com, const char *val, void *closure)
741 char **pstring = (char **)closure;
743 xfree_null (*pstring);
745 /* #### If VAL is empty, perhaps should set *CLOSURE to NULL. */
747 if (!enable_tilde_expansion || !(*val == '~' && ISSEP (val[1])))
750 *pstring = xstrdup (val);
756 char *home = home_dir ();
760 homelen = strlen (home);
761 while (homelen && ISSEP (home[homelen - 1]))
762 home[--homelen] = '\0';
764 /* Skip the leading "~/". */
765 for (++val; ISSEP (*val); val++)
768 result = xmalloc (homelen + 1 + strlen (val) + 1);
769 memcpy (result, home, homelen);
770 result[homelen] = '/';
771 strcpy (result + homelen + 1, val);
777 /* Convert "\" to "/". */
780 for (s = *pstring; *s; s++)
788 /* Like cmd_file, but strips trailing '/' characters. */
790 cmd_directory (const char *com, const char *val, void *closure)
794 /* Call cmd_file() for tilde expansion and separator
795 canonicalization (backslash -> slash under Windows). These
796 things should perhaps be in a separate function. */
797 if (!cmd_file (com, val, closure))
800 s = *(char **)closure;
802 while (t > s && *--t == '/')
808 /* Split VAL by space to a vector of values, and append those values
809 to vector pointed to by the CLOSURE argument. If VAL is empty, the
810 CLOSURE vector is cleared instead. */
813 cmd_vector (const char *com, const char *val, void *closure)
815 char ***pvec = (char ***)closure;
818 *pvec = merge_vecs (*pvec, sepstring (val));
828 cmd_directory_vector (const char *com, const char *val, void *closure)
830 char ***pvec = (char ***)closure;
834 /* Strip the trailing slashes from directories. */
837 seps = sepstring (val);
838 for (t = seps; t && *t; t++)
840 int len = strlen (*t);
841 /* Skip degenerate case of root directory. */
844 if ((*t)[len - 1] == '/')
845 (*t)[len - 1] = '\0';
848 *pvec = merge_vecs (*pvec, seps);
858 static int simple_atof PARAMS ((const char *, const char *, double *));
860 /* Enginge for cmd_bytes and cmd_bytes_large: converts a string such
861 as "100k" or "2.5G" to a floating point number. */
864 parse_bytes_helper (const char *val, double *result)
867 const char *end = val + strlen (val);
869 /* Check for "inf". */
870 if (0 == strcmp (val, "inf"))
876 /* Strip trailing whitespace. */
877 while (val < end && ISSPACE (end[-1]))
882 switch (TOLOWER (end[-1]))
885 --end, mult = 1024.0;
888 --end, mult = 1048576.0;
891 --end, mult = 1073741824.0;
894 --end, mult = 1099511627776.0;
897 /* Not a recognized suffix: assume it's a digit. (If not,
898 simple_atof will raise an error.) */
902 /* Skip leading and trailing whitespace. */
903 while (val < end && ISSPACE (*val))
905 while (val < end && ISSPACE (end[-1]))
910 if (!simple_atof (val, end, &number))
913 *result = number * mult;
917 /* Parse VAL as a number and set its value to CLOSURE (which should
918 point to a long int).
920 By default, the value is assumed to be in bytes. If "K", "M", or
921 "G" are appended, the value is multiplied with 1<<10, 1<<20, or
922 1<<30, respectively. Floating point values are allowed and are
923 cast to integer before use. The idea is to be able to use things
924 like 1.5k instead of "1536".
926 The string "inf" is returned as 0.
928 In case of error, 0 is returned and memory pointed to by CLOSURE
929 remains unmodified. */
932 cmd_bytes (const char *com, const char *val, void *closure)
935 if (!parse_bytes_helper (val, &byte_value))
937 fprintf (stderr, _("%s: %s: Invalid byte value `%s'\n"),
938 exec_name, com, val);
941 *(long *)closure = (long)byte_value;
945 /* Like cmd_bytes, but CLOSURE is interpreted as a pointer to
946 LARGE_INT. It works by converting the string to double, therefore
947 working with values up to 2^53-1 without loss of precision. This
948 value (8192 TB) is large enough to serve for a while. */
951 cmd_bytes_large (const char *com, const char *val, void *closure)
954 if (!parse_bytes_helper (val, &byte_value))
956 fprintf (stderr, _("%s: %s: Invalid byte value `%s'\n"),
957 exec_name, com, val);
960 *(LARGE_INT *)closure = (LARGE_INT)byte_value;
964 /* Store the value of VAL to *OUT. The value is a time period, by
965 default expressed in seconds, but also accepting suffixes "m", "h",
966 "d", and "w" for minutes, hours, days, and weeks respectively. */
969 cmd_time (const char *com, const char *val, void *closure)
972 const char *end = val + strlen (val);
974 /* Strip trailing whitespace. */
975 while (val < end && ISSPACE (end[-1]))
981 fprintf (stderr, _("%s: %s: Invalid time period `%s'\n"),
982 exec_name, com, val);
986 switch (TOLOWER (end[-1]))
989 --end, mult = 1; /* seconds */
992 --end, mult = 60; /* minutes */
995 --end, mult = 3600; /* hours */
998 --end, mult = 86400.0; /* days */
1001 --end, mult = 604800.0; /* weeks */
1004 /* Not a recognized suffix: assume it belongs to the number.
1005 (If not, atof simple_atof will raise an error.) */
1009 /* Skip leading and trailing whitespace. */
1010 while (val < end && ISSPACE (*val))
1012 while (val < end && ISSPACE (end[-1]))
1017 if (!simple_atof (val, end, &number))
1020 *(double *)closure = number * mult;
1024 /* Specialized helper functions, used by `commands' to handle some
1025 options specially. */
1027 static int check_user_specified_header PARAMS ((const char *));
1030 cmd_spec_dirstruct (const char *com, const char *val, void *closure)
1032 if (!cmd_boolean (com, val, &opt.dirstruct))
1034 /* Since dirstruct behaviour is explicitly changed, no_dirstruct
1035 must be affected inversely. */
1037 opt.no_dirstruct = 0;
1039 opt.no_dirstruct = 1;
1044 cmd_spec_header (const char *com, const char *val, void *closure)
1048 /* Empty header means reset headers. */
1049 xfree_null (opt.user_header);
1050 opt.user_header = NULL;
1056 if (!check_user_specified_header (val))
1058 fprintf (stderr, _("%s: %s: Invalid header `%s'.\n"),
1059 exec_name, com, val);
1062 i = opt.user_header ? strlen (opt.user_header) : 0;
1063 opt.user_header = (char *)xrealloc (opt.user_header, i + strlen (val)
1065 strcpy (opt.user_header + i, val);
1067 opt.user_header[i++] = '\r';
1068 opt.user_header[i++] = '\n';
1069 opt.user_header[i] = '\0';
1075 cmd_spec_htmlify (const char *com, const char *val, void *closure)
1077 int flag = cmd_boolean (com, val, &opt.htmlify);
1078 if (flag && !opt.htmlify)
1079 opt.remove_listing = 0;
1083 /* Set the "mirror" mode. It means: recursive download, timestamping,
1084 no limit on max. recursion depth, and don't remove listings. */
1087 cmd_spec_mirror (const char *com, const char *val, void *closure)
1091 if (!cmd_boolean (com, val, &mirror))
1096 if (!opt.no_dirstruct)
1098 opt.timestamping = 1;
1099 opt.reclevel = INFINITE_RECURSION;
1100 opt.remove_listing = 0;
1105 /* Set progress.type to VAL, but verify that it's a valid progress
1106 implementation before that. */
1109 cmd_spec_progress (const char *com, const char *val, void *closure)
1111 if (!valid_progress_implementation_p (val))
1113 fprintf (stderr, _("%s: %s: Invalid progress type `%s'.\n"),
1114 exec_name, com, val);
1117 xfree_null (opt.progress_type);
1119 /* Don't call set_progress_implementation here. It will be called
1120 in main() when it becomes clear what the log output is. */
1121 opt.progress_type = xstrdup (val);
1125 /* Set opt.recursive to VAL as with cmd_boolean. If opt.recursive is
1126 set to true, also set opt.dirstruct to 1, unless opt.no_dirstruct
1130 cmd_spec_recursive (const char *com, const char *val, void *closure)
1132 if (!cmd_boolean (com, val, &opt.recursive))
1136 if (opt.recursive && !opt.no_dirstruct)
1143 cmd_spec_restrict_file_names (const char *com, const char *val, void *closure)
1145 int restrict_os = opt.restrict_files_os;
1146 int restrict_ctrl = opt.restrict_files_ctrl;
1148 const char *end = strchr (val, ',');
1150 end = val + strlen (val);
1152 #define VAL_IS(string_literal) BOUNDED_EQUAL (val, end, string_literal)
1154 if (VAL_IS ("unix"))
1155 restrict_os = restrict_unix;
1156 else if (VAL_IS ("windows"))
1157 restrict_os = restrict_windows;
1158 else if (VAL_IS ("nocontrol"))
1164 _("%s: %s: Invalid restriction `%s', use `unix' or `windows'.\n"),
1165 exec_name, com, val);
1173 if (!strcmp (end + 1, "nocontrol"))
1179 opt.restrict_files_os = restrict_os;
1180 opt.restrict_files_ctrl = restrict_ctrl;
1184 /* Set all three timeout values. */
1187 cmd_spec_timeout (const char *com, const char *val, void *closure)
1190 if (!cmd_time (com, val, &value))
1192 opt.read_timeout = value;
1193 opt.connect_timeout = value;
1194 opt.dns_timeout = value;
1199 cmd_spec_useragent (const char *com, const char *val, void *closure)
1201 /* Just check for empty string and newline, so we don't throw total
1202 junk to the server. */
1203 if (!*val || strchr (val, '\n'))
1205 fprintf (stderr, _("%s: %s: Invalid value `%s'.\n"),
1206 exec_name, com, val);
1209 opt.useragent = xstrdup (val);
1213 /* Miscellaneous useful routines. */
1215 /* A very simple atoi clone, more portable than strtol and friends,
1216 but reports errors, unlike atoi. Returns 1 on success, 0 on
1217 failure. In case of success, stores result to *DEST. */
1220 simple_atoi (const char *beg, const char *end, int *dest)
1228 for (p = beg; p < end && ISDIGIT (*p); p++)
1229 result = (10 * result) + (*p - '0');
1238 /* Trivial atof, with error reporting. Handles "<digits>[.<digits>]",
1239 doesn't handle exponential notation. Returns 1 on success, 0 on
1240 failure. In case of success, stores its result to *DEST. */
1243 simple_atof (const char *beg, const char *end, double *dest)
1253 for (p = beg; p < end; p++)
1259 result = (10 * result) + (ch - '0');
1261 result += (ch - '0') / (divider *= 10);
1282 check_user_specified_header (const char *s)
1286 for (p = s; *p && *p != ':' && !ISSPACE (*p); p++);
1287 /* The header MUST contain `:' preceded by at least one
1288 non-whitespace character. */
1289 if (*p != ':' || p == s)
1291 /* The header MUST NOT contain newlines. */
1292 if (strchr (s, '\n'))
1297 void cleanup_html_url PARAMS ((void));
1298 void res_cleanup PARAMS ((void));
1299 void downloaded_files_free PARAMS ((void));
1300 void http_cleanup PARAMS ((void));
1303 /* Free the memory allocated by global variables. */
1307 /* Free external resources, close files, etc. */
1312 /* We're exiting anyway so there's no real need to call free()
1313 hundreds of times. Skipping the frees will make Wget exit
1316 However, when detecting leaks, it's crucial to free() everything
1317 because then you can find the real leaks, i.e. the allocated
1318 memory which grows with the size of the program. */
1324 cleanup_html_url ();
1325 downloaded_files_free ();
1327 if (wget_cookie_jar)
1328 cookie_jar_delete (wget_cookie_jar);
1331 extern acc_t *netrc_list;
1332 free_netrc (netrc_list);
1334 xfree_null (opt.lfilename);
1335 xfree_null (opt.dir_prefix);
1336 xfree_null (opt.input_filename);
1337 xfree_null (opt.output_document);
1338 free_vec (opt.accepts);
1339 free_vec (opt.rejects);
1340 free_vec (opt.excludes);
1341 free_vec (opt.includes);
1342 free_vec (opt.domains);
1343 free_vec (opt.follow_tags);
1344 free_vec (opt.ignore_tags);
1345 xfree_null (opt.progress_type);
1346 xfree (opt.ftp_acc);
1347 xfree_null (opt.ftp_pass);
1348 xfree_null (opt.ftp_proxy);
1349 xfree_null (opt.https_proxy);
1350 xfree_null (opt.http_proxy);
1351 free_vec (opt.no_proxy);
1352 xfree_null (opt.useragent);
1353 xfree_null (opt.referer);
1354 xfree_null (opt.http_user);
1355 xfree_null (opt.http_passwd);
1356 xfree_null (opt.user_header);
1358 xfree_null (opt.sslcertkey);
1359 xfree_null (opt.sslcertfile);
1360 #endif /* HAVE_SSL */
1361 xfree_null (opt.bind_address);
1362 xfree_null (opt.cookies_input);
1363 xfree_null (opt.cookies_output);