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 */
73 extern struct cookie_jar *wget_cookie_jar;
75 /* We want tilde expansion enabled only when reading `.wgetrc' lines;
76 otherwise, it will be performed by the shell. This variable will
77 be set by the wgetrc-reading function. */
79 static int enable_tilde_expansion;
82 #define CMD_DECLARE(func) static int func \
83 PARAMS ((const char *, const char *, void *))
85 CMD_DECLARE (cmd_boolean);
86 CMD_DECLARE (cmd_bytes);
87 CMD_DECLARE (cmd_directory_vector);
88 CMD_DECLARE (cmd_lockable_boolean);
89 CMD_DECLARE (cmd_number);
90 CMD_DECLARE (cmd_number_inf);
91 CMD_DECLARE (cmd_string);
92 CMD_DECLARE (cmd_file);
93 CMD_DECLARE (cmd_directory);
94 CMD_DECLARE (cmd_time);
95 CMD_DECLARE (cmd_vector);
97 CMD_DECLARE (cmd_spec_dirstruct);
98 CMD_DECLARE (cmd_spec_header);
99 CMD_DECLARE (cmd_spec_htmlify);
100 CMD_DECLARE (cmd_spec_mirror);
101 CMD_DECLARE (cmd_spec_progress);
102 CMD_DECLARE (cmd_spec_recursive);
103 CMD_DECLARE (cmd_spec_restrict_file_names);
104 CMD_DECLARE (cmd_spec_timeout);
105 CMD_DECLARE (cmd_spec_useragent);
107 /* List of recognized commands, each consisting of name, closure and function.
108 When adding a new command, simply add it to the list, but be sure to keep the
109 list sorted alphabetically, as findcmd() depends on it. Also, be sure to add
110 any entries that allocate memory (e.g. cmd_string and cmd_vector guys) to the
111 cleanup() function below. */
115 int (*action) PARAMS ((const char *, const char *, void *));
117 { "accept", &opt.accepts, cmd_vector },
118 { "addhostdir", &opt.add_hostdir, cmd_boolean },
119 { "alwaysrest", &opt.always_rest, cmd_boolean }, /* deprecated */
120 { "background", &opt.background, cmd_boolean },
121 { "backupconverted", &opt.backup_converted, cmd_boolean },
122 { "backups", &opt.backups, cmd_number },
123 { "base", &opt.base_href, cmd_string },
124 { "bindaddress", &opt.bind_address, cmd_string },
125 { "cache", &opt.allow_cache, cmd_boolean },
126 { "connecttimeout", &opt.connect_timeout, cmd_time },
127 { "continue", &opt.always_rest, cmd_boolean },
128 { "convertlinks", &opt.convert_links, cmd_boolean },
129 { "cookies", &opt.cookies, cmd_boolean },
130 { "cutdirs", &opt.cut_dirs, cmd_number },
132 { "debug", &opt.debug, cmd_boolean },
134 { "deleteafter", &opt.delete_after, cmd_boolean },
135 { "dirprefix", &opt.dir_prefix, cmd_directory },
136 { "dirstruct", NULL, cmd_spec_dirstruct },
137 { "dnscache", &opt.dns_cache, cmd_boolean },
138 { "dnstimeout", &opt.dns_timeout, cmd_time },
139 { "domains", &opt.domains, cmd_vector },
140 { "dotbytes", &opt.dot_bytes, cmd_bytes },
141 { "dotsinline", &opt.dots_in_line, cmd_number },
142 { "dotspacing", &opt.dot_spacing, cmd_number },
143 { "dotstyle", &opt.dot_style, cmd_string },
145 { "egdfile", &opt.sslegdsock, cmd_file },
147 { "excludedirectories", &opt.excludes, cmd_directory_vector },
148 { "excludedomains", &opt.exclude_domains, cmd_vector },
149 { "followftp", &opt.follow_ftp, cmd_boolean },
150 { "followtags", &opt.follow_tags, cmd_vector },
151 { "forcehtml", &opt.force_html, cmd_boolean },
152 { "ftpproxy", &opt.ftp_proxy, cmd_string },
153 { "glob", &opt.ftp_glob, cmd_boolean },
154 { "header", NULL, cmd_spec_header },
155 { "htmlextension", &opt.html_extension, cmd_boolean },
156 { "htmlify", NULL, cmd_spec_htmlify },
157 { "httpkeepalive", &opt.http_keep_alive, cmd_boolean },
158 { "httppasswd", &opt.http_passwd, cmd_string },
159 { "httpproxy", &opt.http_proxy, cmd_string },
160 { "httpsproxy", &opt.https_proxy, cmd_string },
161 { "httpuser", &opt.http_user, cmd_string },
162 { "ignorelength", &opt.ignore_length, cmd_boolean },
163 { "ignoretags", &opt.ignore_tags, cmd_vector },
164 { "includedirectories", &opt.includes, cmd_directory_vector },
165 { "input", &opt.input_filename, cmd_file },
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 { "passwd", &opt.ftp_pass, cmd_string },
181 { "postdata", &opt.post_data, cmd_string },
182 { "postfile", &opt.post_file_name, cmd_file },
183 { "progress", &opt.progress_type, cmd_spec_progress },
184 { "proxypasswd", &opt.proxy_passwd, cmd_string },
185 { "proxyuser", &opt.proxy_user, cmd_string },
186 { "quiet", &opt.quiet, cmd_boolean },
187 { "quota", &opt.quota, cmd_bytes },
188 { "randomwait", &opt.random_wait, cmd_boolean },
189 { "readtimeout", &opt.read_timeout, cmd_time },
190 { "reclevel", &opt.reclevel, cmd_number_inf },
191 { "recursive", NULL, cmd_spec_recursive },
192 { "referer", &opt.referer, cmd_string },
193 { "reject", &opt.rejects, cmd_vector },
194 { "relativeonly", &opt.relative_only, cmd_boolean },
195 { "removelisting", &opt.remove_listing, cmd_boolean },
196 { "restrictfilenames", NULL, cmd_spec_restrict_file_names },
197 { "retrsymlinks", &opt.retr_symlinks, cmd_boolean },
198 { "retryconnrefused", &opt.retry_connrefused, cmd_boolean },
199 { "robots", &opt.use_robots, cmd_boolean },
200 { "savecookies", &opt.cookies_output, cmd_file },
201 { "saveheaders", &opt.save_headers, cmd_boolean },
202 { "serverresponse", &opt.server_response, cmd_boolean },
203 { "spanhosts", &opt.spanhost, cmd_boolean },
204 { "spider", &opt.spider, cmd_boolean },
206 { "sslcadir", &opt.sslcadir, cmd_directory },
207 { "sslcafile", &opt.sslcafile, cmd_file },
208 { "sslcertfile", &opt.sslcertfile, cmd_file },
209 { "sslcertkey", &opt.sslcertkey, cmd_file },
210 { "sslcerttype", &opt.sslcerttype, cmd_number },
211 { "sslcheckcert", &opt.sslcheckcert, cmd_number },
212 { "sslprotocol", &opt.sslprotocol, cmd_number },
213 #endif /* HAVE_SSL */
214 { "strictcomments", &opt.strict_comments, cmd_boolean },
215 { "timeout", NULL, cmd_spec_timeout },
216 { "timestamping", &opt.timestamping, cmd_boolean },
217 { "tries", &opt.ntry, cmd_number_inf },
218 { "useproxy", &opt.use_proxy, cmd_boolean },
219 { "useragent", NULL, cmd_spec_useragent },
220 { "verbose", &opt.verbose, cmd_boolean },
221 { "wait", &opt.wait, cmd_time },
222 { "waitretry", &opt.waitretry, cmd_time }
225 /* Look up COM in the commands[] array and return its index. If COM
226 is not found, -1 is returned. This function uses binary search. */
229 findcmd (const char *com)
231 int lo = 0, hi = countof (commands) - 1;
235 int mid = (lo + hi) >> 1;
236 int cmp = strcasecmp (com, commands[mid].name);
247 /* Reset the variables to default values. */
253 /* Most of the default values are 0. Just reset everything, and
254 fill in the non-zero values. Note that initializing pointers to
255 NULL this way is technically illegal, but porting Wget to a
256 machine where NULL is not all-zero bit pattern will be the least
257 of the implementors' worries. */
258 memset (&opt, 0, sizeof (opt));
266 opt.ftp_acc = xstrdup ("anonymous");
267 opt.ftp_pass = xstrdup ("-wget@");
271 opt.http_keep_alive = 1;
273 tmp = getenv ("no_proxy");
275 opt.no_proxy = sepstring (tmp);
278 opt.read_timeout = 900;
281 opt.remove_listing = 1;
283 opt.dot_bytes = 1024;
284 opt.dot_spacing = 10;
285 opt.dots_in_line = 50;
289 /* The default for file name restriction defaults to the OS type. */
290 #if !defined(WINDOWS) && !defined(__CYGWIN__)
291 opt.restrict_files_os = restrict_unix;
293 opt.restrict_files_os = restrict_windows;
295 opt.restrict_files_ctrl = 1;
298 /* Return the user's home directory (strdup-ed), or NULL if none is
303 char *home = getenv ("HOME");
308 /* If HOME is not defined, try getting it from the password
310 struct passwd *pwd = getpwuid (getuid ());
311 if (!pwd || !pwd->pw_dir)
316 /* #### Maybe I should grab home_dir from registry, but the best
317 that I could get from there is user's Start menu. It sucks! */
321 return home ? xstrdup (home) : NULL;
324 /* Return the path to the user's .wgetrc. This is either the value of
325 `WGETRC' environment variable, or `$HOME/.wgetrc'.
327 If the `WGETRC' variable exists but the file does not exist, the
328 function will exit(). */
330 wgetrc_file_name (void)
335 /* Try the environment. */
336 env = getenv ("WGETRC");
339 if (!file_exists_p (env))
341 fprintf (stderr, _("%s: WGETRC points to %s, which doesn't exist.\n"),
345 return xstrdup (env);
349 /* If that failed, try $HOME/.wgetrc. */
353 file = (char *)xmalloc (strlen (home) + 1 + strlen (".wgetrc") + 1);
354 sprintf (file, "%s/.wgetrc", home);
358 /* Under Windows, "home" is (for the purposes of this function) the
359 directory where `wget.exe' resides, and `wget.ini' will be used
360 as file name. SYSTEM_WGETRC should not be defined under WINDOWS.
362 It is not as trivial as I assumed, because on 95 argv[0] is full
363 path, but on NT you get what you typed in command line. --dbudor */
367 file = (char *)xmalloc (strlen (home) + strlen ("wget.ini") + 1);
368 sprintf (file, "%swget.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)))
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 = findcmd (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 return ((*commands[comind].action) (com, val, commands[comind].closure));
559 /* Run command COM with value VAL. If running the command produces an
560 error, report the error and exit.
562 This is intended to be called from main() with commands not
563 provided by the user, therefore it aborts when an unknown command
564 is encountered. Once the COMIND's are exported to init.h, this
565 function will be changed to accept COMIND directly. */
568 setoptval (const char *com, const char *val)
570 if (!setval_internal (findcmd (com), com, val))
574 /* Parse OPT into command and value and run it. For example,
575 run_command("foo=bar") is equivalent to setoptval("foo", "bar").
576 This is used by the `--execute' flag in main.c. */
579 run_command (const char *opt)
583 int status = parse_line (opt, &com, &val, &comind);
586 if (!setval_internal (comind, com, val))
591 else if (status == 0)
593 fprintf (stderr, _("%s: Invalid --execute command `%s'\n"),
599 /* Generic helper functions, for use with `commands'. */
601 #define CMP1(p, c0) (TOLOWER((p)[0]) == (c0) && (p)[1] == '\0')
603 #define CMP2(p, c0, c1) (TOLOWER((p)[0]) == (c0) \
604 && TOLOWER((p)[1]) == (c1) \
607 #define CMP3(p, c0, c1, c2) (TOLOWER((p)[0]) == (c0) \
608 && TOLOWER((p)[1]) == (c1) \
609 && TOLOWER((p)[2]) == (c2) \
613 /* Store the boolean value from VAL to CLOSURE. COM is ignored,
614 except for error messages. */
616 cmd_boolean (const char *com, const char *val, void *closure)
620 if (CMP2 (val, 'o', 'n') || CMP3 (val, 'y', 'e', 's') || CMP1 (val, '1'))
621 /* "on", "yes" and "1" mean true. */
623 else if (CMP3 (val, 'o', 'f', 'f') || CMP2 (val, 'n', 'o') || CMP1 (val, '0'))
624 /* "off", "no" and "0" mean false. */
629 _("%s: %s: Invalid boolean `%s', use `on' or `off'.\n"),
630 exec_name, com, val);
634 *(int *)closure = bool_value;
638 /* Store the lockable_boolean {2, 1, 0, -1} value from VAL to CLOSURE.
639 COM is ignored, except for error messages. Values 2 and -1
640 indicate that once defined, the value may not be changed by
641 successive wgetrc files or command-line arguments.
643 Values: 2 - Enable a particular option for good ("always")
644 1 - Enable an option ("on")
645 0 - Disable an option ("off")
646 -1 - Disable an option for good ("never") */
648 cmd_lockable_boolean (const char *com, const char *val, void *closure)
650 int lockable_boolean_value;
652 int oldval = *(int *)closure;
655 * If a config file said "always" or "never", don't allow command line
656 * arguments to override the config file.
658 if (oldval == -1 || oldval == 2)
661 if (0 == strcasecmp (val, "always") || CMP1 (val, '2'))
662 lockable_boolean_value = 2;
663 else if (CMP2 (val, 'o', 'n') || CMP3 (val, 'y', 'e', 's') || CMP1 (val, '1'))
664 lockable_boolean_value = 1;
665 else if (CMP3 (val, 'o', 'f', 'f') || CMP2 (val, 'n', 'o') || CMP1 (val, '0'))
666 lockable_boolean_value = 0;
667 else if (0 == strcasecmp (val, "never") || CMP2 (val, '-', '1'))
668 lockable_boolean_value = -1;
672 _("%s: %s: Invalid boolean `%s', use always, on, off, or never.\n"),
673 exec_name, com, val);
677 *(int *)closure = lockable_boolean_value;
681 static int simple_atoi PARAMS ((const char *, const char *, int *));
683 /* Set the non-negative integer value from VAL to CLOSURE. With
684 incorrect specification, the number remains unchanged. */
686 cmd_number (const char *com, const char *val, void *closure)
688 if (!simple_atoi (val, val + strlen (val), closure))
690 fprintf (stderr, _("%s: %s: Invalid number `%s'.\n"),
691 exec_name, com, val);
697 /* Similar to cmd_number(), only accepts `inf' as a synonym for 0. */
699 cmd_number_inf (const char *com, const char *val, void *closure)
701 if (!strcasecmp (val, "inf"))
706 return cmd_number (com, val, closure);
709 /* Copy (strdup) the string at COM to a new location and place a
710 pointer to *CLOSURE. */
712 cmd_string (const char *com, const char *val, void *closure)
714 char **pstring = (char **)closure;
716 FREE_MAYBE (*pstring);
717 *pstring = xstrdup (val);
722 # define ISSEP(c) ((c) == '/')
724 # define ISSEP(c) ((c) == '/' || (c) == '\\')
727 /* Like the above, but handles tilde-expansion when reading a user's
728 `.wgetrc'. In that case, and if VAL begins with `~', the tilde
729 gets expanded to the user's home directory. */
731 cmd_file (const char *com, const char *val, void *closure)
733 char **pstring = (char **)closure;
735 FREE_MAYBE (*pstring);
737 /* #### If VAL is empty, perhaps should set *CLOSURE to NULL. */
739 if (!enable_tilde_expansion || !(*val == '~' && ISSEP (val[1])))
742 *pstring = xstrdup (val);
748 char *home = home_dir ();
752 homelen = strlen (home);
753 while (homelen && ISSEP (home[homelen - 1]))
754 home[--homelen] = '\0';
756 /* Skip the leading "~/". */
757 for (++val; ISSEP (*val); val++)
760 result = xmalloc (homelen + 1 + strlen (val) + 1);
761 memcpy (result, home, homelen);
762 result[homelen] = '/';
763 strcpy (result + homelen + 1, val);
769 /* Convert "\" to "/". */
772 for (s = *pstring; *s; s++)
780 /* Like cmd_file, but strips trailing '/' characters. */
782 cmd_directory (const char *com, const char *val, void *closure)
786 /* Call cmd_file() for tilde expansion and separator
787 canonicalization (backslash -> slash under Windows). These
788 things should perhaps be in a separate function. */
789 if (!cmd_file (com, val, closure))
792 s = *(char **)closure;
794 while (t > s && *--t == '/')
800 /* Split VAL by space to a vector of values, and append those values
801 to vector pointed to by the CLOSURE argument. If VAL is empty, the
802 CLOSURE vector is cleared instead. */
805 cmd_vector (const char *com, const char *val, void *closure)
807 char ***pvec = (char ***)closure;
810 *pvec = merge_vecs (*pvec, sepstring (val));
820 cmd_directory_vector (const char *com, const char *val, void *closure)
822 char ***pvec = (char ***)closure;
826 /* Strip the trailing slashes from directories. */
829 seps = sepstring (val);
830 for (t = seps; t && *t; t++)
832 int len = strlen (*t);
833 /* Skip degenerate case of root directory. */
836 if ((*t)[len - 1] == '/')
837 (*t)[len - 1] = '\0';
840 *pvec = merge_vecs (*pvec, seps);
850 static int simple_atof PARAMS ((const char *, const char *, double *));
852 /* Parse VAL as a number and set its value to CLOSURE (which should
853 point to a long int).
855 By default, the value is assumed to be in bytes. If "K", "M", or
856 "G" are appended, the value is multiplied with 1<<10, 1<<20, or
857 1<<30, respectively. Floating point values are allowed and are
858 cast to integer before use. The idea is to be able to use things
859 like 1.5k instead of "1536".
861 The string "inf" is returned as 0.
863 In case of error, 0 is returned and memory pointed to by CLOSURE
864 remains unmodified. */
867 cmd_bytes (const char *com, const char *val, void *closure)
871 const char *end = val + strlen (val);
873 /* Check for "inf". */
874 if (0 == strcmp (val, "inf"))
876 *(long *)closure = 0;
880 /* Strip trailing whitespace. */
881 while (val < end && ISSPACE (end[-1]))
887 fprintf (stderr, _("%s: %s: Invalid byte value `%s'\n"),
888 exec_name, com, val);
892 switch (TOLOWER (end[-1]))
895 --end, mult = 1L<<10;
898 --end, mult = 1L<<20;
901 --end, mult = 1L<<30;
904 /* Not a recognized suffix: assume it belongs to the number.
905 (If not, atof simple_atof will raise an error.) */
909 /* Skip leading and trailing whitespace. */
910 while (val < end && ISSPACE (*val))
912 while (val < end && ISSPACE (end[-1]))
917 if (!simple_atof (val, end, &number))
920 *(long *)closure = (long)(number * mult);
924 /* Store the value of VAL to *OUT. The value is a time period, by
925 default expressed in seconds, but also accepting suffixes "m", "h",
926 "d", and "w" for minutes, hours, days, and weeks respectively. */
929 cmd_time (const char *com, const char *val, void *closure)
932 const char *end = val + strlen (val);
934 /* Strip trailing whitespace. */
935 while (val < end && ISSPACE (end[-1]))
941 fprintf (stderr, _("%s: %s: Invalid time period `%s'\n"),
942 exec_name, com, val);
946 switch (TOLOWER (end[-1]))
949 --end, mult = 1; /* seconds */
952 --end, mult = 60; /* minutes */
955 --end, mult = 3600; /* hours */
958 --end, mult = 86400.0; /* days */
961 --end, mult = 604800.0; /* weeks */
964 /* Not a recognized suffix: assume it belongs to the number.
965 (If not, atof simple_atof will raise an error.) */
969 /* Skip leading and trailing whitespace. */
970 while (val < end && ISSPACE (*val))
972 while (val < end && ISSPACE (end[-1]))
977 if (!simple_atof (val, end, &number))
980 *(double *)closure = number * mult;
984 /* Specialized helper functions, used by `commands' to handle some
985 options specially. */
987 static int check_user_specified_header PARAMS ((const char *));
990 cmd_spec_dirstruct (const char *com, const char *val, void *closure)
992 if (!cmd_boolean (com, val, &opt.dirstruct))
994 /* Since dirstruct behaviour is explicitly changed, no_dirstruct
995 must be affected inversely. */
997 opt.no_dirstruct = 0;
999 opt.no_dirstruct = 1;
1004 cmd_spec_header (const char *com, const char *val, void *closure)
1008 /* Empty header means reset headers. */
1009 FREE_MAYBE (opt.user_header);
1010 opt.user_header = NULL;
1016 if (!check_user_specified_header (val))
1018 fprintf (stderr, _("%s: %s: Invalid header `%s'.\n"),
1019 exec_name, com, val);
1022 i = opt.user_header ? strlen (opt.user_header) : 0;
1023 opt.user_header = (char *)xrealloc (opt.user_header, i + strlen (val)
1025 strcpy (opt.user_header + i, val);
1027 opt.user_header[i++] = '\r';
1028 opt.user_header[i++] = '\n';
1029 opt.user_header[i] = '\0';
1035 cmd_spec_htmlify (const char *com, const char *val, void *closure)
1037 int flag = cmd_boolean (com, val, &opt.htmlify);
1038 if (flag && !opt.htmlify)
1039 opt.remove_listing = 0;
1043 /* Set the "mirror" mode. It means: recursive download, timestamping,
1044 no limit on max. recursion depth, and don't remove listings. */
1047 cmd_spec_mirror (const char *com, const char *val, void *closure)
1051 if (!cmd_boolean (com, val, &mirror))
1056 if (!opt.no_dirstruct)
1058 opt.timestamping = 1;
1059 opt.reclevel = INFINITE_RECURSION;
1060 opt.remove_listing = 0;
1065 /* Set progress.type to VAL, but verify that it's a valid progress
1066 implementation before that. */
1069 cmd_spec_progress (const char *com, const char *val, void *closure)
1071 if (!valid_progress_implementation_p (val))
1073 fprintf (stderr, _("%s: %s: Invalid progress type `%s'.\n"),
1074 exec_name, com, val);
1077 FREE_MAYBE (opt.progress_type);
1079 /* Don't call set_progress_implementation here. It will be called
1080 in main() when it becomes clear what the log output is. */
1081 opt.progress_type = xstrdup (val);
1085 /* Set opt.recursive to VAL as with cmd_boolean. If opt.recursive is
1086 set to true, also set opt.dirstruct to 1, unless opt.no_dirstruct
1090 cmd_spec_recursive (const char *com, const char *val, void *closure)
1092 if (!cmd_boolean (com, val, &opt.recursive))
1096 if (opt.recursive && !opt.no_dirstruct)
1103 cmd_spec_restrict_file_names (const char *com, const char *val, void *closure)
1105 int restrict_os = opt.restrict_files_os;
1106 int restrict_ctrl = opt.restrict_files_ctrl;
1108 const char *end = strchr (val, ',');
1110 end = val + strlen (val);
1112 #define VAL_IS(string_literal) BOUNDED_EQUAL (val, end, string_literal)
1114 if (VAL_IS ("unix"))
1115 restrict_os = restrict_unix;
1116 else if (VAL_IS ("windows"))
1117 restrict_os = restrict_windows;
1118 else if (VAL_IS ("nocontrol"))
1124 _("%s: %s: Invalid restriction `%s', use `unix' or `windows'.\n"),
1125 exec_name, com, val);
1133 if (!strcmp (end + 1, "nocontrol"))
1139 opt.restrict_files_os = restrict_os;
1140 opt.restrict_files_ctrl = restrict_ctrl;
1144 /* Set all three timeout values. */
1147 cmd_spec_timeout (const char *com, const char *val, void *closure)
1150 if (!cmd_time (com, val, &value))
1152 opt.read_timeout = value;
1153 opt.connect_timeout = value;
1154 opt.dns_timeout = value;
1159 cmd_spec_useragent (const char *com, const char *val, void *closure)
1161 /* Just check for empty string and newline, so we don't throw total
1162 junk to the server. */
1163 if (!*val || strchr (val, '\n'))
1165 fprintf (stderr, _("%s: %s: Invalid value `%s'.\n"),
1166 exec_name, com, val);
1169 opt.useragent = xstrdup (val);
1173 /* Miscellaneous useful routines. */
1175 /* A very simple atoi clone, more portable than strtol and friends,
1176 but reports errors, unlike atoi. Returns 1 on success, 0 on
1177 failure. In case of success, stores result to *DEST. */
1180 simple_atoi (const char *beg, const char *end, int *dest)
1188 for (p = beg; p < end && ISDIGIT (*p); p++)
1189 result = (10 * result) + (*p - '0');
1198 /* Trivial atof, with error reporting. Handles "<digits>[.<digits>]",
1199 doesn't handle exponential notation. Returns 1 on success, 0 on
1200 failure. In case of success, stores its result to *DEST. */
1203 simple_atof (const char *beg, const char *end, double *dest)
1213 for (p = beg; p < end; p++)
1219 result = (10 * result) + (ch - '0');
1221 result += (ch - '0') / (divider *= 10);
1242 check_user_specified_header (const char *s)
1246 for (p = s; *p && *p != ':' && !ISSPACE (*p); p++);
1247 /* The header MUST contain `:' preceded by at least one
1248 non-whitespace character. */
1249 if (*p != ':' || p == s)
1251 /* The header MUST NOT contain newlines. */
1252 if (strchr (s, '\n'))
1257 void cleanup_html_url PARAMS ((void));
1258 void res_cleanup PARAMS ((void));
1259 void downloaded_files_free PARAMS ((void));
1260 void http_cleanup PARAMS ((void));
1263 /* Free the memory allocated by global variables. */
1267 /* Free external resources, close files, etc. */
1272 /* We're exiting anyway so there's no real need to call free()
1273 hundreds of times. Skipping the frees will make Wget exit
1276 However, when detecting leaks, it's crucial to free() everything
1277 because then you can find the real leaks, i.e. the allocated
1278 memory which grows with the size of the program. */
1284 cleanup_html_url ();
1285 downloaded_files_free ();
1287 cookie_jar_delete (wget_cookie_jar);
1290 extern acc_t *netrc_list;
1291 free_netrc (netrc_list);
1293 FREE_MAYBE (opt.lfilename);
1294 FREE_MAYBE (opt.dir_prefix);
1295 FREE_MAYBE (opt.input_filename);
1296 FREE_MAYBE (opt.output_document);
1297 free_vec (opt.accepts);
1298 free_vec (opt.rejects);
1299 free_vec (opt.excludes);
1300 free_vec (opt.includes);
1301 free_vec (opt.domains);
1302 free_vec (opt.follow_tags);
1303 free_vec (opt.ignore_tags);
1304 FREE_MAYBE (opt.progress_type);
1305 xfree (opt.ftp_acc);
1306 FREE_MAYBE (opt.ftp_pass);
1307 FREE_MAYBE (opt.ftp_proxy);
1308 FREE_MAYBE (opt.https_proxy);
1309 FREE_MAYBE (opt.http_proxy);
1310 free_vec (opt.no_proxy);
1311 FREE_MAYBE (opt.useragent);
1312 FREE_MAYBE (opt.referer);
1313 FREE_MAYBE (opt.http_user);
1314 FREE_MAYBE (opt.http_passwd);
1315 FREE_MAYBE (opt.user_header);
1317 FREE_MAYBE (opt.sslcertkey);
1318 FREE_MAYBE (opt.sslcertfile);
1319 #endif /* HAVE_SSL */
1320 FREE_MAYBE (opt.bind_address);
1321 FREE_MAYBE (opt.cookies_input);
1322 FREE_MAYBE (opt.cookies_output);