1 /* Reading/parsing the initialization file.
2 Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001, 2003, 2004
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>
56 #include "cookies.h" /* for cookie_jar_delete */
58 #include "recur.h" /* for INFINITE_RECURSION */
64 extern struct cookie_jar *wget_cookie_jar;
66 /* We want tilde expansion enabled only when reading `.wgetrc' lines;
67 otherwise, it will be performed by the shell. This variable will
68 be set by the wgetrc-reading function. */
70 static int enable_tilde_expansion;
73 #define CMD_DECLARE(func) static int func \
74 PARAMS ((const char *, const char *, void *))
76 CMD_DECLARE (cmd_boolean);
77 CMD_DECLARE (cmd_bytes);
78 CMD_DECLARE (cmd_bytes_large);
79 CMD_DECLARE (cmd_directory_vector);
80 CMD_DECLARE (cmd_lockable_boolean);
81 CMD_DECLARE (cmd_number);
82 CMD_DECLARE (cmd_number_inf);
83 CMD_DECLARE (cmd_string);
84 CMD_DECLARE (cmd_file);
85 CMD_DECLARE (cmd_directory);
86 CMD_DECLARE (cmd_time);
87 CMD_DECLARE (cmd_vector);
89 CMD_DECLARE (cmd_spec_dirstruct);
90 CMD_DECLARE (cmd_spec_header);
91 CMD_DECLARE (cmd_spec_htmlify);
92 CMD_DECLARE (cmd_spec_mirror);
93 CMD_DECLARE (cmd_spec_progress);
94 CMD_DECLARE (cmd_spec_recursive);
95 CMD_DECLARE (cmd_spec_restrict_file_names);
96 CMD_DECLARE (cmd_spec_timeout);
97 CMD_DECLARE (cmd_spec_useragent);
99 /* List of recognized commands, each consisting of name, closure and
100 function. When adding a new command, simply add it to the list,
101 but be sure to keep the list sorted alphabetically, as
102 command_by_name depends on it. Also, be sure to add any entries
103 that allocate memory (e.g. cmd_string and cmd_vector guys) to the
104 cleanup() function below. */
109 int (*action) PARAMS ((const char *, const char *, void *));
111 { "accept", &opt.accepts, cmd_vector },
112 { "addhostdir", &opt.add_hostdir, cmd_boolean },
113 { "alwaysrest", &opt.always_rest, cmd_boolean }, /* deprecated */
114 { "background", &opt.background, cmd_boolean },
115 { "backupconverted", &opt.backup_converted, cmd_boolean },
116 { "backups", &opt.backups, cmd_number },
117 { "base", &opt.base_href, cmd_string },
118 { "bindaddress", &opt.bind_address, cmd_string },
119 { "cache", &opt.allow_cache, cmd_boolean },
120 { "connecttimeout", &opt.connect_timeout, cmd_time },
121 { "continue", &opt.always_rest, cmd_boolean },
122 { "convertlinks", &opt.convert_links, cmd_boolean },
123 { "cookies", &opt.cookies, cmd_boolean },
124 { "cutdirs", &opt.cut_dirs, cmd_number },
126 { "debug", &opt.debug, cmd_boolean },
128 { "deleteafter", &opt.delete_after, cmd_boolean },
129 { "dirprefix", &opt.dir_prefix, cmd_directory },
130 { "dirstruct", NULL, cmd_spec_dirstruct },
131 { "dnscache", &opt.dns_cache, cmd_boolean },
132 { "dnstimeout", &opt.dns_timeout, cmd_time },
133 { "domains", &opt.domains, cmd_vector },
134 { "dotbytes", &opt.dot_bytes, cmd_bytes },
135 { "dotsinline", &opt.dots_in_line, cmd_number },
136 { "dotspacing", &opt.dot_spacing, cmd_number },
137 { "dotstyle", &opt.dot_style, cmd_string },
139 { "egdfile", &opt.sslegdsock, cmd_file },
141 { "excludedirectories", &opt.excludes, cmd_directory_vector },
142 { "excludedomains", &opt.exclude_domains, cmd_vector },
143 { "followftp", &opt.follow_ftp, cmd_boolean },
144 { "followtags", &opt.follow_tags, cmd_vector },
145 { "forcehtml", &opt.force_html, cmd_boolean },
146 { "ftppasswd", &opt.ftp_pass, cmd_string },
147 { "ftpproxy", &opt.ftp_proxy, cmd_string },
148 { "glob", &opt.ftp_glob, cmd_boolean },
149 { "header", &opt.user_headers, cmd_spec_header },
150 { "htmlextension", &opt.html_extension, cmd_boolean },
151 { "htmlify", NULL, cmd_spec_htmlify },
152 { "httpkeepalive", &opt.http_keep_alive, cmd_boolean },
153 { "httppasswd", &opt.http_passwd, cmd_string },
154 { "httpproxy", &opt.http_proxy, cmd_string },
155 { "httpsproxy", &opt.https_proxy, cmd_string },
156 { "httpuser", &opt.http_user, cmd_string },
157 { "ignorelength", &opt.ignore_length, cmd_boolean },
158 { "ignoretags", &opt.ignore_tags, cmd_vector },
159 { "includedirectories", &opt.includes, cmd_directory_vector },
161 { "inet4only", &opt.ipv4_only, cmd_boolean },
162 { "inet6only", &opt.ipv6_only, cmd_boolean },
164 { "input", &opt.input_filename, cmd_file },
165 { "keepsessioncookies", &opt.keep_session_cookies, cmd_boolean },
166 { "killlonger", &opt.kill_longer, cmd_boolean },
167 { "limitrate", &opt.limit_rate, cmd_bytes },
168 { "loadcookies", &opt.cookies_input, cmd_file },
169 { "logfile", &opt.lfilename, cmd_file },
170 { "login", &opt.ftp_acc, cmd_string },
171 { "mirror", NULL, cmd_spec_mirror },
172 { "netrc", &opt.netrc, cmd_boolean },
173 { "noclobber", &opt.noclobber, cmd_boolean },
174 { "noparent", &opt.no_parent, cmd_boolean },
175 { "noproxy", &opt.no_proxy, cmd_vector },
176 { "numtries", &opt.ntry, cmd_number_inf },/* deprecated*/
177 { "outputdocument", &opt.output_document, cmd_file },
178 { "pagerequisites", &opt.page_requisites, cmd_boolean },
179 { "passiveftp", &opt.ftp_pasv, cmd_lockable_boolean },
180 { "postdata", &opt.post_data, cmd_string },
181 { "postfile", &opt.post_file_name, cmd_file },
182 { "preservepermissions", &opt.preserve_perm, cmd_boolean },
183 { "progress", &opt.progress_type, cmd_spec_progress },
184 { "protocoldirectories", &opt.protocol_directories, cmd_boolean },
185 { "proxypasswd", &opt.proxy_passwd, cmd_string },
186 { "proxyuser", &opt.proxy_user, cmd_string },
187 { "quiet", &opt.quiet, cmd_boolean },
188 { "quota", &opt.quota, cmd_bytes_large },
189 { "randomwait", &opt.random_wait, cmd_boolean },
190 { "readtimeout", &opt.read_timeout, cmd_time },
191 { "reclevel", &opt.reclevel, cmd_number_inf },
192 { "recursive", NULL, cmd_spec_recursive },
193 { "referer", &opt.referer, cmd_string },
194 { "reject", &opt.rejects, cmd_vector },
195 { "relativeonly", &opt.relative_only, cmd_boolean },
196 { "removelisting", &opt.remove_listing, cmd_boolean },
197 { "restrictfilenames", NULL, cmd_spec_restrict_file_names },
198 { "retrsymlinks", &opt.retr_symlinks, cmd_boolean },
199 { "retryconnrefused", &opt.retry_connrefused, cmd_boolean },
200 { "robots", &opt.use_robots, cmd_boolean },
201 { "savecookies", &opt.cookies_output, cmd_file },
202 { "saveheaders", &opt.save_headers, cmd_boolean },
203 { "serverresponse", &opt.server_response, cmd_boolean },
204 { "spanhosts", &opt.spanhost, cmd_boolean },
205 { "spider", &opt.spider, cmd_boolean },
207 { "sslcadir", &opt.sslcadir, cmd_directory },
208 { "sslcafile", &opt.sslcafile, cmd_file },
209 { "sslcertfile", &opt.sslcertfile, cmd_file },
210 { "sslcertkey", &opt.sslcertkey, cmd_file },
211 { "sslcerttype", &opt.sslcerttype, cmd_number },
212 { "sslcheckcert", &opt.sslcheckcert, cmd_number },
213 { "sslprotocol", &opt.sslprotocol, cmd_number },
214 #endif /* HAVE_SSL */
215 { "strictcomments", &opt.strict_comments, cmd_boolean },
216 { "timeout", NULL, cmd_spec_timeout },
217 { "timestamping", &opt.timestamping, cmd_boolean },
218 { "tries", &opt.ntry, cmd_number_inf },
219 { "useproxy", &opt.use_proxy, cmd_boolean },
220 { "useragent", NULL, cmd_spec_useragent },
221 { "verbose", &opt.verbose, cmd_boolean },
222 { "wait", &opt.wait, cmd_time },
223 { "waitretry", &opt.waitretry, cmd_time }
226 /* Look up CMDNAME in the commands[] and return its position in the
227 array. If CMDNAME is not found, return -1. */
230 command_by_name (const char *cmdname)
232 /* Use binary search for speed. Wget has ~100 commands, which
233 guarantees a worst case performance of 7 string comparisons. */
234 int lo = 0, hi = countof (commands) - 1;
238 int mid = (lo + hi) >> 1;
239 int cmp = strcasecmp (cmdname, commands[mid].name);
250 /* Reset the variables to default values. */
256 /* Most of the default values are 0. Just reset everything, and
257 fill in the non-zero values. Note that initializing pointers to
258 NULL this way is technically illegal, but porting Wget to a
259 machine where NULL is not all-zero bit pattern will be the least
260 of the implementors' worries. */
268 opt.ftp_acc = xstrdup ("anonymous");
269 opt.ftp_pass = xstrdup ("-wget@");
273 opt.http_keep_alive = 1;
275 tmp = getenv ("no_proxy");
277 opt.no_proxy = sepstring (tmp);
280 opt.read_timeout = 900;
283 opt.remove_listing = 1;
285 opt.dot_bytes = 1024;
286 opt.dot_spacing = 10;
287 opt.dots_in_line = 50;
292 /* The default for file name restriction defaults to the OS type. */
293 #if !defined(WINDOWS) && !defined(__CYGWIN__)
294 opt.restrict_files_os = restrict_unix;
296 opt.restrict_files_os = restrict_windows;
298 opt.restrict_files_ctrl = 1;
301 /* Return the user's home directory (strdup-ed), or NULL if none is
306 char *home = getenv ("HOME");
311 /* If HOME is not defined, try getting it from the password
313 struct passwd *pwd = getpwuid (getuid ());
314 if (!pwd || !pwd->pw_dir)
318 /* Under Windows, if $HOME isn't defined, use the directory where
319 `wget.exe' resides. */
324 return home ? xstrdup (home) : NULL;
327 /* Return the path to the user's .wgetrc. This is either the value of
328 `WGETRC' environment variable, or `$HOME/.wgetrc'.
330 If the `WGETRC' variable exists but the file does not exist, the
331 function will exit(). */
333 wgetrc_file_name (void)
338 /* Try the environment. */
339 env = getenv ("WGETRC");
342 if (!file_exists_p (env))
344 fprintf (stderr, _("%s: WGETRC points to %s, which doesn't exist.\n"),
348 return xstrdup (env);
351 /* If that failed, try $HOME/.wgetrc. */
354 file = aprintf ("%s/.wgetrc", home);
358 /* Under Windows, if we still haven't found .wgetrc, look for the file
359 `wget.ini' in the directory where `wget.exe' resides; we do this for
360 backward compatibility with previous versions of Wget.
361 SYSTEM_WGETRC should not be defined under WINDOWS. */
362 if (!file || !file_exists_p (file))
368 file = aprintf ("%s/wget.ini", home);
374 if (!file_exists_p (file))
382 static int parse_line PARAMS ((const char *, char **, char **, int *));
383 static int setval_internal PARAMS ((int, const char *, const char *));
385 /* Initialize variables from a wgetrc file. */
388 run_wgetrc (const char *file)
394 fp = fopen (file, "rb");
397 fprintf (stderr, _("%s: Cannot read %s (%s).\n"), exec_name,
398 file, strerror (errno));
401 enable_tilde_expansion = 1;
403 while ((line = read_whole_line (fp)) != NULL)
408 /* Parse the line. */
409 status = parse_line (line, &com, &val, &comind);
411 /* If everything is OK, set the value. */
414 if (!setval_internal (comind, com, val))
415 fprintf (stderr, _("%s: Error in %s at line %d.\n"), exec_name,
420 else if (status == 0)
421 fprintf (stderr, _("%s: Error in %s at line %d.\n"), exec_name,
425 enable_tilde_expansion = 0;
429 /* Initialize the defaults and run the system wgetrc and user's own
436 /* Load the hard-coded defaults. */
439 /* If SYSTEM_WGETRC is defined, use it. */
441 if (file_exists_p (SYSTEM_WGETRC))
442 run_wgetrc (SYSTEM_WGETRC);
444 /* Override it with your own, if one exists. */
445 file = wgetrc_file_name ();
448 /* #### We should canonicalize `file' and SYSTEM_WGETRC with
449 something like realpath() before comparing them with `strcmp' */
451 if (!strcmp (file, SYSTEM_WGETRC))
453 fprintf (stderr, _("\
454 %s: Warning: Both system and user wgetrc point to `%s'.\n"),
464 /* Remove dashes and underscores from S, modifying S in the
470 char *t = s; /* t - tortoise */
471 char *h = s; /* h - hare */
473 if (*h == '_' || *h == '-')
480 /* Parse the line pointed by line, with the syntax:
481 <sp>* command <sp>* = <sp>* value <sp>*
482 Uses malloc to allocate space for command and value.
483 If the line is invalid, data is freed and 0 is returned.
490 In case of success, *COM and *VAL point to freshly allocated
491 strings, and *COMIND points to com's index. In case of error or
492 empty line, those values are unaffected. */
495 parse_line (const char *line, char **com, char **val, int *comind)
498 const char *end = line + strlen (line);
499 const char *cmdstart, *cmdend;
500 const char *valstart, *valend;
505 /* Skip leading and trailing whitespace. */
506 while (*line && ISSPACE (*line))
508 while (end > line && ISSPACE (end[-1]))
511 /* Skip empty lines and comments. */
512 if (!*line || *line == '#')
518 while (p < end && (ISALPHA (*p) || *p == '_' || *p == '-'))
522 /* Skip '=', as well as any space before or after it. */
523 while (p < end && ISSPACE (*p))
525 if (p == end || *p != '=')
528 while (p < end && ISSPACE (*p))
534 /* The line now known to be syntactically correct. Check whether
535 the command is valid. */
536 BOUNDED_TO_ALLOCA (cmdstart, cmdend, cmdcopy);
538 ind = command_by_name (cmdcopy);
542 /* The command is valid. Now fill in the values and report success
545 *com = strdupdelim (cmdstart, cmdend);
546 *val = strdupdelim (valstart, valend);
550 /* Run commands[comind].action. */
553 setval_internal (int comind, const char *com, const char *val)
555 assert (0 <= comind && comind < countof (commands));
556 DEBUGP (("Setting %s (%d) to %s\n", com, comind, val));
557 return ((*commands[comind].action) (com, val, commands[comind].closure));
560 /* Run command COM with value VAL. If running the command produces an
561 error, report the error and exit.
563 This is intended to be called from main() to modify Wget's behavior
564 through command-line switches. Since COM is hard-coded in main(),
565 it is not canonicalized, and this aborts when COM is not found.
567 If COMIND's are exported to init.h, this function will be changed
568 to accept COMIND directly. */
571 setoptval (const char *com, const char *val)
573 assert (val != NULL);
574 if (!setval_internal (command_by_name (com), com, val))
578 /* Parse OPT into command and value and run it. For example,
579 run_command("foo=bar") is equivalent to setoptval("foo", "bar").
580 This is used by the `--execute' flag in main.c. */
583 run_command (const char *opt)
587 int status = parse_line (opt, &com, &val, &comind);
590 if (!setval_internal (comind, com, val))
595 else if (status == 0)
597 fprintf (stderr, _("%s: Invalid --execute command `%s'\n"),
603 /* Generic helper functions, for use with `commands'. */
605 #define CMP1(p, c0) (TOLOWER((p)[0]) == (c0) && (p)[1] == '\0')
607 #define CMP2(p, c0, c1) (TOLOWER((p)[0]) == (c0) \
608 && TOLOWER((p)[1]) == (c1) \
611 #define CMP3(p, c0, c1, c2) (TOLOWER((p)[0]) == (c0) \
612 && TOLOWER((p)[1]) == (c1) \
613 && TOLOWER((p)[2]) == (c2) \
617 /* Store the boolean value from VAL to CLOSURE. COM is ignored,
618 except for error messages. */
620 cmd_boolean (const char *com, const char *val, void *closure)
624 if (CMP2 (val, 'o', 'n') || CMP3 (val, 'y', 'e', 's') || CMP1 (val, '1'))
625 /* "on", "yes" and "1" mean true. */
627 else if (CMP3 (val, 'o', 'f', 'f') || CMP2 (val, 'n', 'o') || CMP1 (val, '0'))
628 /* "off", "no" and "0" mean false. */
633 _("%s: %s: Invalid boolean `%s', use `on' or `off'.\n"),
634 exec_name, com, val);
638 *(int *)closure = bool_value;
642 /* Store the lockable_boolean {2, 1, 0, -1} value from VAL to CLOSURE.
643 COM is ignored, except for error messages. Values 2 and -1
644 indicate that once defined, the value may not be changed by
645 successive wgetrc files or command-line arguments.
647 Values: 2 - Enable a particular option for good ("always")
648 1 - Enable an option ("on")
649 0 - Disable an option ("off")
650 -1 - Disable an option for good ("never") */
652 cmd_lockable_boolean (const char *com, const char *val, void *closure)
654 int lockable_boolean_value;
656 int oldval = *(int *)closure;
659 * If a config file said "always" or "never", don't allow command line
660 * arguments to override the config file.
662 if (oldval == -1 || oldval == 2)
665 if (0 == strcasecmp (val, "always") || CMP1 (val, '2'))
666 lockable_boolean_value = 2;
667 else if (CMP2 (val, 'o', 'n') || CMP3 (val, 'y', 'e', 's') || CMP1 (val, '1'))
668 lockable_boolean_value = 1;
669 else if (CMP3 (val, 'o', 'f', 'f') || CMP2 (val, 'n', 'o') || CMP1 (val, '0'))
670 lockable_boolean_value = 0;
671 else if (0 == strcasecmp (val, "never") || CMP2 (val, '-', '1'))
672 lockable_boolean_value = -1;
676 _("%s: %s: Invalid boolean `%s', use always, on, off, or never.\n"),
677 exec_name, com, val);
681 *(int *)closure = lockable_boolean_value;
685 static int simple_atoi PARAMS ((const char *, const char *, int *));
687 /* Set the non-negative integer value from VAL to CLOSURE. With
688 incorrect specification, the number remains unchanged. */
690 cmd_number (const char *com, const char *val, void *closure)
692 if (!simple_atoi (val, val + strlen (val), closure))
694 fprintf (stderr, _("%s: %s: Invalid number `%s'.\n"),
695 exec_name, com, val);
701 /* Similar to cmd_number(), only accepts `inf' as a synonym for 0. */
703 cmd_number_inf (const char *com, const char *val, void *closure)
705 if (!strcasecmp (val, "inf"))
710 return cmd_number (com, val, closure);
713 /* Copy (strdup) the string at COM to a new location and place a
714 pointer to *CLOSURE. */
716 cmd_string (const char *com, const char *val, void *closure)
718 char **pstring = (char **)closure;
720 xfree_null (*pstring);
721 *pstring = xstrdup (val);
726 # define ISSEP(c) ((c) == '/')
728 # define ISSEP(c) ((c) == '/' || (c) == '\\')
731 /* Like the above, but handles tilde-expansion when reading a user's
732 `.wgetrc'. In that case, and if VAL begins with `~', the tilde
733 gets expanded to the user's home directory. */
735 cmd_file (const char *com, const char *val, void *closure)
737 char **pstring = (char **)closure;
739 xfree_null (*pstring);
741 /* #### If VAL is empty, perhaps should set *CLOSURE to NULL. */
743 if (!enable_tilde_expansion || !(*val == '~' && ISSEP (val[1])))
746 *pstring = xstrdup (val);
752 char *home = home_dir ();
756 homelen = strlen (home);
757 while (homelen && ISSEP (home[homelen - 1]))
758 home[--homelen] = '\0';
760 /* Skip the leading "~/". */
761 for (++val; ISSEP (*val); val++)
764 result = xmalloc (homelen + 1 + strlen (val) + 1);
765 memcpy (result, home, homelen);
766 result[homelen] = '/';
767 strcpy (result + homelen + 1, val);
773 /* Convert "\" to "/". */
776 for (s = *pstring; *s; s++)
784 /* Like cmd_file, but strips trailing '/' characters. */
786 cmd_directory (const char *com, const char *val, void *closure)
790 /* Call cmd_file() for tilde expansion and separator
791 canonicalization (backslash -> slash under Windows). These
792 things should perhaps be in a separate function. */
793 if (!cmd_file (com, val, closure))
796 s = *(char **)closure;
798 while (t > s && *--t == '/')
804 /* Split VAL by space to a vector of values, and append those values
805 to vector pointed to by the CLOSURE argument. If VAL is empty, the
806 CLOSURE vector is cleared instead. */
809 cmd_vector (const char *com, const char *val, void *closure)
811 char ***pvec = (char ***)closure;
814 *pvec = merge_vecs (*pvec, sepstring (val));
824 cmd_directory_vector (const char *com, const char *val, void *closure)
826 char ***pvec = (char ***)closure;
830 /* Strip the trailing slashes from directories. */
833 seps = sepstring (val);
834 for (t = seps; t && *t; t++)
836 int len = strlen (*t);
837 /* Skip degenerate case of root directory. */
840 if ((*t)[len - 1] == '/')
841 (*t)[len - 1] = '\0';
844 *pvec = merge_vecs (*pvec, seps);
854 static int simple_atof PARAMS ((const char *, const char *, double *));
856 /* Engine for cmd_bytes and cmd_bytes_large: converts a string such as
857 "100k" or "2.5G" to a floating point number. */
860 parse_bytes_helper (const char *val, double *result)
863 const char *end = val + strlen (val);
865 /* Check for "inf". */
866 if (0 == strcmp (val, "inf"))
872 /* Strip trailing whitespace. */
873 while (val < end && ISSPACE (end[-1]))
878 switch (TOLOWER (end[-1]))
881 --end, mult = 1024.0;
884 --end, mult = 1048576.0;
887 --end, mult = 1073741824.0;
890 --end, mult = 1099511627776.0;
893 /* Not a recognized suffix: assume it's a digit. (If not,
894 simple_atof will raise an error.) */
898 /* Skip leading and trailing whitespace. */
899 while (val < end && ISSPACE (*val))
901 while (val < end && ISSPACE (end[-1]))
906 if (!simple_atof (val, end, &number))
909 *result = number * mult;
913 /* Parse VAL as a number and set its value to CLOSURE (which should
916 By default, the value is assumed to be in bytes. If "K", "M", or
917 "G" are appended, the value is multiplied with 1<<10, 1<<20, or
918 1<<30, respectively. Floating point values are allowed and are
919 cast to integer before use. The idea is to be able to use things
920 like 1.5k instead of "1536".
922 The string "inf" is returned as 0.
924 In case of error, 0 is returned and memory pointed to by CLOSURE
925 remains unmodified. */
928 cmd_bytes (const char *com, const char *val, void *closure)
931 if (!parse_bytes_helper (val, &byte_value))
933 fprintf (stderr, _("%s: %s: Invalid byte value `%s'\n"),
934 exec_name, com, val);
937 *(wgint *)closure = (wgint)byte_value;
941 /* Like cmd_bytes, but CLOSURE is interpreted as a pointer to
942 LARGE_INT. It works by converting the string to double, therefore
943 working with values up to 2^53-1 without loss of precision. This
944 value (8192 TB) is large enough to serve for a while. */
947 cmd_bytes_large (const char *com, const char *val, void *closure)
950 if (!parse_bytes_helper (val, &byte_value))
952 fprintf (stderr, _("%s: %s: Invalid byte value `%s'\n"),
953 exec_name, com, val);
956 *(LARGE_INT *)closure = (LARGE_INT)byte_value;
960 /* Store the value of VAL to *OUT. The value is a time period, by
961 default expressed in seconds, but also accepting suffixes "m", "h",
962 "d", and "w" for minutes, hours, days, and weeks respectively. */
965 cmd_time (const char *com, const char *val, void *closure)
968 const char *end = val + strlen (val);
970 /* Strip trailing whitespace. */
971 while (val < end && ISSPACE (end[-1]))
977 fprintf (stderr, _("%s: %s: Invalid time period `%s'\n"),
978 exec_name, com, val);
982 switch (TOLOWER (end[-1]))
985 --end, mult = 1; /* seconds */
988 --end, mult = 60; /* minutes */
991 --end, mult = 3600; /* hours */
994 --end, mult = 86400.0; /* days */
997 --end, mult = 604800.0; /* weeks */
1000 /* Not a recognized suffix: assume it belongs to the number.
1001 (If not, atof simple_atof will raise an error.) */
1005 /* Skip leading and trailing whitespace. */
1006 while (val < end && ISSPACE (*val))
1008 while (val < end && ISSPACE (end[-1]))
1013 if (!simple_atof (val, end, &number))
1016 *(double *)closure = number * mult;
1020 /* Specialized helper functions, used by `commands' to handle some
1021 options specially. */
1023 static int check_user_specified_header PARAMS ((const char *));
1026 cmd_spec_dirstruct (const char *com, const char *val, void *closure)
1028 if (!cmd_boolean (com, val, &opt.dirstruct))
1030 /* Since dirstruct behaviour is explicitly changed, no_dirstruct
1031 must be affected inversely. */
1033 opt.no_dirstruct = 0;
1035 opt.no_dirstruct = 1;
1040 cmd_spec_header (const char *com, const char *val, void *closure)
1042 if (!check_user_specified_header (val))
1044 fprintf (stderr, _("%s: %s: Invalid header `%s'.\n"),
1045 exec_name, com, val);
1048 return cmd_vector (com, val, closure);
1052 cmd_spec_htmlify (const char *com, const char *val, void *closure)
1054 int flag = cmd_boolean (com, val, &opt.htmlify);
1055 if (flag && !opt.htmlify)
1056 opt.remove_listing = 0;
1060 /* Set the "mirror" mode. It means: recursive download, timestamping,
1061 no limit on max. recursion depth, and don't remove listings. */
1064 cmd_spec_mirror (const char *com, const char *val, void *closure)
1068 if (!cmd_boolean (com, val, &mirror))
1073 if (!opt.no_dirstruct)
1075 opt.timestamping = 1;
1076 opt.reclevel = INFINITE_RECURSION;
1077 opt.remove_listing = 0;
1082 /* Set progress.type to VAL, but verify that it's a valid progress
1083 implementation before that. */
1086 cmd_spec_progress (const char *com, const char *val, void *closure)
1088 if (!valid_progress_implementation_p (val))
1090 fprintf (stderr, _("%s: %s: Invalid progress type `%s'.\n"),
1091 exec_name, com, val);
1094 xfree_null (opt.progress_type);
1096 /* Don't call set_progress_implementation here. It will be called
1097 in main() when it becomes clear what the log output is. */
1098 opt.progress_type = xstrdup (val);
1102 /* Set opt.recursive to VAL as with cmd_boolean. If opt.recursive is
1103 set to true, also set opt.dirstruct to 1, unless opt.no_dirstruct
1107 cmd_spec_recursive (const char *com, const char *val, void *closure)
1109 if (!cmd_boolean (com, val, &opt.recursive))
1113 if (opt.recursive && !opt.no_dirstruct)
1120 cmd_spec_restrict_file_names (const char *com, const char *val, void *closure)
1122 int restrict_os = opt.restrict_files_os;
1123 int restrict_ctrl = opt.restrict_files_ctrl;
1125 const char *end = strchr (val, ',');
1127 end = val + strlen (val);
1129 #define VAL_IS(string_literal) BOUNDED_EQUAL (val, end, string_literal)
1131 if (VAL_IS ("unix"))
1132 restrict_os = restrict_unix;
1133 else if (VAL_IS ("windows"))
1134 restrict_os = restrict_windows;
1135 else if (VAL_IS ("nocontrol"))
1141 _("%s: %s: Invalid restriction `%s', use `unix' or `windows'.\n"),
1142 exec_name, com, val);
1150 if (!strcmp (end + 1, "nocontrol"))
1156 opt.restrict_files_os = restrict_os;
1157 opt.restrict_files_ctrl = restrict_ctrl;
1161 /* Set all three timeout values. */
1164 cmd_spec_timeout (const char *com, const char *val, void *closure)
1167 if (!cmd_time (com, val, &value))
1169 opt.read_timeout = value;
1170 opt.connect_timeout = value;
1171 opt.dns_timeout = value;
1176 cmd_spec_useragent (const char *com, const char *val, void *closure)
1178 /* Just check for empty string and newline, so we don't throw total
1179 junk to the server. */
1180 if (!*val || strchr (val, '\n'))
1182 fprintf (stderr, _("%s: %s: Invalid value `%s'.\n"),
1183 exec_name, com, val);
1186 opt.useragent = xstrdup (val);
1190 /* Miscellaneous useful routines. */
1192 /* A very simple atoi clone, more portable than strtol and friends,
1193 but reports errors, unlike atoi. Returns 1 on success, 0 on
1194 failure. In case of success, stores result to *DEST. */
1197 simple_atoi (const char *beg, const char *end, int *dest)
1205 for (p = beg; p < end && ISDIGIT (*p); p++)
1206 result = (10 * result) + (*p - '0');
1215 /* Trivial atof, with error reporting. Handles "<digits>[.<digits>]",
1216 doesn't handle exponential notation. Returns 1 on success, 0 on
1217 failure. In case of success, stores its result to *DEST. */
1220 simple_atof (const char *beg, const char *end, double *dest)
1230 for (p = beg; p < end; p++)
1236 result = (10 * result) + (ch - '0');
1238 result += (ch - '0') / (divider *= 10);
1259 check_user_specified_header (const char *s)
1263 for (p = s; *p && *p != ':' && !ISSPACE (*p); p++);
1264 /* The header MUST contain `:' preceded by at least one
1265 non-whitespace character. */
1266 if (*p != ':' || p == s)
1268 /* The header MUST NOT contain newlines. */
1269 if (strchr (s, '\n'))
1274 void cleanup_html_url PARAMS ((void));
1275 void res_cleanup PARAMS ((void));
1276 void downloaded_files_free PARAMS ((void));
1277 void http_cleanup PARAMS ((void));
1280 /* Free the memory allocated by global variables. */
1284 /* Free external resources, close files, etc. */
1287 extern FILE *output_stream;
1289 fclose (output_stream);
1290 /* No need to check for error because Wget flushes its output (and
1291 checks for errors) after any data arrives. */
1294 /* We're exiting anyway so there's no real need to call free()
1295 hundreds of times. Skipping the frees will make Wget exit
1298 However, when detecting leaks, it's crucial to free() everything
1299 because then you can find the real leaks, i.e. the allocated
1300 memory which grows with the size of the program. */
1306 cleanup_html_url ();
1307 downloaded_files_free ();
1309 if (wget_cookie_jar)
1310 cookie_jar_delete (wget_cookie_jar);
1313 extern acc_t *netrc_list;
1314 free_netrc (netrc_list);
1316 xfree_null (opt.lfilename);
1317 xfree_null (opt.dir_prefix);
1318 xfree_null (opt.input_filename);
1319 xfree_null (opt.output_document);
1320 free_vec (opt.accepts);
1321 free_vec (opt.rejects);
1322 free_vec (opt.excludes);
1323 free_vec (opt.includes);
1324 free_vec (opt.domains);
1325 free_vec (opt.follow_tags);
1326 free_vec (opt.ignore_tags);
1327 xfree_null (opt.progress_type);
1328 xfree (opt.ftp_acc);
1329 xfree_null (opt.ftp_pass);
1330 xfree_null (opt.ftp_proxy);
1331 xfree_null (opt.https_proxy);
1332 xfree_null (opt.http_proxy);
1333 free_vec (opt.no_proxy);
1334 xfree_null (opt.useragent);
1335 xfree_null (opt.referer);
1336 xfree_null (opt.http_user);
1337 xfree_null (opt.http_passwd);
1338 xfree_null (opt.user_header);
1340 xfree_null (opt.sslcertkey);
1341 xfree_null (opt.sslcertfile);
1342 #endif /* HAVE_SSL */
1343 xfree_null (opt.bind_address);
1344 xfree_null (opt.cookies_input);
1345 xfree_null (opt.cookies_output);