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cgiedit.c
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cgiedit.c
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/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/cgiedit.c,v $
*
* Purpose : CGI-based actionsfile editor.
*
* NOTE: The CGIs in this file use parameter names
* such as "f" and "s" which are really *BAD* choices.
* However, I'm trying to save bytes in the
* edit-actions-list HTML page - the standard actions
* file generated a 550kbyte page, which is ridiculous.
*
* Stick to the short names in this file for consistency.
*
* Copyright : Written by and Copyright (C) 2001-2014 the
* Privoxy team. https://www.privoxy.org/
*
* Based on the Internet Junkbuster originally written
* by and Copyright (C) 1997 Anonymous Coders and
* Junkbusters Corporation. http://www.junkbusters.com
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* The GNU General Public License should be included with
* this file. If not, you can view it at
* http://www.gnu.org/copyleft/gpl.html
* or write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
**********************************************************************/
#include "config.h"
/*
* FIXME: Following includes copied from cgi.c - which are actually needed?
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <ctype.h>
#include <string.h>
#include <assert.h>
#include <sys/stat.h>
#include "project.h"
#include "cgi.h"
#include "cgiedit.h"
#include "cgisimple.h"
#include "list.h"
#include "encode.h"
#include "actions.h"
#include "miscutil.h"
#include "errlog.h"
#include "loaders.h"
#ifdef FEATURE_TOGGLE
/* loadcfg.h is for global_toggle_state only */
#include "loadcfg.h"
#endif /* def FEATURE_TOGGLE */
#include "urlmatch.h"
#ifdef FEATURE_CGI_EDIT_ACTIONS
/**
* A line in an editable_file.
*/
struct file_line
{
/** Next entry in the linked list */
struct file_line * next;
/** The raw data, to write out if this line is unmodified. */
char * raw;
/** Comments and/or whitespace to put before this line if it's modified
and then written out. */
char * prefix;
/** The actual data, as a string. Line continuation and comment removal
are performed on the data read from file before it's stored here, so
it will be a single line of data. */
char * unprocessed;
/** The type of data on this line. One of the FILE_LINE_xxx constants. */
int type;
/** The actual data, processed into some sensible data type. */
union
{
/** An action specification. */
struct action_spec action[1];
/** A name=value pair. */
struct
{
/** The name in the name=value pair. */
char * name;
/** The value in the name=value pair, as a string. */
char * svalue;
/** The value in the name=value pair, as an integer. */
int ivalue;
} setting;
} data;
};
/** This file_line has not been processed yet. */
#define FILE_LINE_UNPROCESSED 1
/** This file_line is blank. Can only appear at the end of a file, due to
the way the parser works. */
#define FILE_LINE_BLANK 2
/** This file_line says {{alias}}. */
#define FILE_LINE_ALIAS_HEADER 3
/** This file_line defines an alias. */
#define FILE_LINE_ALIAS_ENTRY 4
/** This file_line defines an {action}. */
#define FILE_LINE_ACTION 5
/** This file_line specifies a URL pattern. */
#define FILE_LINE_URL 6
/** This file_line says {{settings}}. */
#define FILE_LINE_SETTINGS_HEADER 7
/** This file_line is in a {{settings}} block. */
#define FILE_LINE_SETTINGS_ENTRY 8
/** This file_line says {{description}}. */
#define FILE_LINE_DESCRIPTION_HEADER 9
/** This file_line is in a {{description}} block. */
#define FILE_LINE_DESCRIPTION_ENTRY 10
/*
* Number of file modification time mismatches
* before the CGI editor gets turned off.
*/
#define ACCEPTABLE_TIMESTAMP_MISMATCHES 3
/**
* A configuration file, in a format that can be edited and written back to
* disk.
*/
struct editable_file
{
struct file_line * lines; /**< The contents of the file. A linked list of lines. */
const char * filename; /**< Full pathname - e.g. "/etc/privoxy/wibble.action". */
unsigned identifier; /**< The file name's position in csp->config->actions_file[]. */
const char * version_str; /**< Last modification time, as a string. For CGI param. */
/**< Can be used in URL without using url_param(). */
unsigned version; /**< Last modification time - prevents chaos with
the browser's "back" button. Note that this is a
time_t cast to an unsigned. When comparing, always
cast the time_t to an unsigned, and *NOT* vice-versa.
This may lose the top few bits, but they're not
significant anyway. */
int newline; /**< Newline convention - one of the NEWLINE_xxx constants.
Note that changing this after the file has been
read in will cause a mess. */
struct file_line * parse_error; /**< On parse error, this is the offending line. */
const char * parse_error_text; /**< On parse error, this is the problem.
(Statically allocated) */
};
/**
* Information about the filter types.
* Used for macro replacement in cgi_edit_actions_for_url.
*/
struct filter_type_info
{
const int multi_action_index; /**< The multi action index as defined in project.h */
const char *macro_name; /**< Name of the macro that has to be replaced
with the prepared templates.
For example "content-filter-params" */
const char *type; /**< Name of the filter type,
for example "server-header-filter". */
/* XXX: check if these two can be combined. */
const char *disable_all_option; /**< Name of the catch-all radio option that has
to be checked or unchecked for this filter type. */
const char *disable_all_param; /**< Name of the parameter that causes all filters of
this type to be disabled. */
const char *abbr_type; /**< Abbreviation of the filter type, usually the
first or second character capitalized */
const char *anchor; /**< Anchor for the User Manual link,
for example "SERVER-HEADER-FILTER" */
};
/* Accessed by index, keep the order in the way the FT_ macros are defined. */
static const struct filter_type_info filter_type_info[] =
{
{
ACTION_MULTI_FILTER,
"content-filter-params", "filter",
"filter-all", "filter_all",
"F", "FILTER"
},
{
ACTION_MULTI_CLIENT_HEADER_FILTER,
"client-header-filter-params", "client-header-filter",
"client-header-filter-all", "client_header_filter_all",
"C", "CLIENT-HEADER-FILTER"
},
{
ACTION_MULTI_SERVER_HEADER_FILTER,
"server-header-filter-params", "server-header-filter",
"server-header-filter-all", "server_header_filter_all",
"S", "SERVER-HEADER-FILTER"
},
{
ACTION_MULTI_CLIENT_HEADER_TAGGER,
"client-header-tagger-params", "client-header-tagger",
"client-header-tagger-all", "client_header_tagger_all",
"L", "CLIENT-HEADER-TAGGER"
},
{
ACTION_MULTI_SERVER_HEADER_TAGGER,
"server-header-tagger-params", "server-header-tagger",
"server-header-tagger-all", "server_header_tagger_all",
"E", "SERVER-HEADER-TAGGER"
},
{
ACTION_MULTI_SUPPRESS_TAG,
"suppress-tag-params", "suppress-tag",
"suppress-tag-all", "suppress_tag_all",
"U", "SUPPRESS-TAG"
},
{
ACTION_MULTI_CLIENT_BODY_FILTER,
"client-body-filter-params", "client-body-filter",
"client-body-filter-all", "client_body_filter_all",
"P", "CLIENT-BODY-FILTER"
},
#ifdef FEATURE_EXTERNAL_FILTERS
{
ACTION_MULTI_EXTERNAL_FILTER,
"external-content-filter-params", "external-filter",
"external-content-filter-all", "external_content_filter_all",
"E", "EXTERNAL-CONTENT-FILTER"
},
#endif
};
/* FIXME: Following non-static functions should be prototyped in .h or made static */
/* Functions to read and write arbitrary config files */
jb_err edit_read_file(struct client_state *csp,
const struct map *parameters,
int require_version,
struct editable_file **pfile);
jb_err edit_write_file(struct editable_file * file);
void edit_free_file(struct editable_file * file);
/* Functions to read and write actions files */
jb_err edit_parse_actions_file(struct editable_file * file);
jb_err edit_read_actions_file(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters,
int require_version,
struct editable_file **pfile);
/* Error handlers */
jb_err cgi_error_modified(struct client_state *csp,
struct http_response *rsp,
const char *filename);
jb_err cgi_error_parse(struct client_state *csp,
struct http_response *rsp,
struct editable_file *file);
jb_err cgi_error_file(struct client_state *csp,
struct http_response *rsp,
const char *filename);
jb_err cgi_error_file_read_only(struct client_state *csp,
struct http_response *rsp,
const char *filename);
/* Internal arbitrary config file support functions */
static jb_err edit_read_file_lines(FILE *fp, struct file_line ** pfile, int *newline);
static void edit_free_file_lines(struct file_line * first_line);
/* Internal actions file support functions */
static int match_actions_file_header_line(const char * line, const char * name);
static jb_err split_line_on_equals(const char * line, char ** pname, char ** pvalue);
/* Internal parameter parsing functions */
static jb_err get_url_spec_param(struct client_state *csp,
const struct map *parameters,
const char *name,
char **pvalue);
/* Internal actionsfile <==> HTML conversion functions */
static jb_err map_radio(struct map * exports,
const char * optionname,
const char * values,
int value);
static jb_err actions_to_radio(struct map * exports,
const struct action_spec *action);
static jb_err actions_from_radio(const struct map * parameters,
struct action_spec *action);
static jb_err action_render_string_filters_template(struct map * exports,
const struct action_spec *action,
const char* flter_template,
const struct filter_type_info *type);
static jb_err map_copy_parameter_html(struct map *out,
const struct map *in,
const char *name);
static jb_err get_file_name_param(struct client_state *csp,
const struct map *parameters,
const char *param_name,
const char **pfilename);
/* Internal convenience functions */
static char *section_target(const unsigned sectionid);
/*********************************************************************
*
* Function : section_target
*
* Description : Given an unsigned (section id) n, produce a dynamically
* allocated string of the form #l<n>, for use in link
* targets.
*
* XXX: The hash should be moved into the templates
* to make this function more generic and render
* stringify() obsolete.
*
* Parameters :
* 1 : sectionid = start line number of section
*
* Returns : String with link target, or NULL if out of
* memory
*
*********************************************************************/
static char *section_target(const unsigned sectionid)
{
char buf[30];
snprintf(buf, sizeof(buf), "#l%u", sectionid);
return(strdup(buf));
}
/*********************************************************************
*
* Function : stringify
*
* Description : Convert a number into a dynamically allocated string.
*
* Parameters :
* 1 : number = The number to convert.
*
* Returns : String with link target, or NULL if out of memory
*
*********************************************************************/
static char *stringify(const unsigned number)
{
char buf[6];
snprintf(buf, sizeof(buf), "%u", number);
return strdup(buf);
}
/*********************************************************************
*
* Function : map_copy_parameter_html
*
* Description : Copy a CGI parameter from one map to another, HTML
* encoding it.
*
* Parameters :
* 1 : out = target map
* 2 : in = source map
* 3 : name = name of cgi parameter to copy
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
* JB_ERR_CGI_PARAMS if the parameter doesn't exist
* in the source map
*
*********************************************************************/
static jb_err map_copy_parameter_html(struct map *out,
const struct map *in,
const char *name)
{
const char * value;
jb_err err;
assert(out);
assert(in);
assert(name);
value = lookup(in, name);
err = map(out, name, 1, html_encode(value), 0);
if (err)
{
/* Out of memory */
return err;
}
else if (*value == '\0')
{
return JB_ERR_CGI_PARAMS;
}
else
{
return JB_ERR_OK;
}
}
/*********************************************************************
*
* Function : cgi_edit_actions_url_form
*
* Description : CGI function that displays a form for
* edit-actions-url
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters
* i : (action index) Identifies the file to edit
* v : (version) File's last-modified time
* p : (pattern) Line number of pattern to edit
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
* JB_ERR_CGI_PARAMS if the CGI parameters are not
* specified or not valid.
*
*********************************************************************/
jb_err cgi_edit_actions_url_form(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
struct map * exports;
unsigned patternid;
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
unsigned section_start_line_number = 0;
jb_err err;
assert(csp);
assert(rsp);
assert(parameters);
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
return cgi_error_disabled(csp, rsp);
}
err = get_number_param(csp, parameters, "p", &patternid);
if (err)
{
return err;
}
err = edit_read_actions_file(csp, rsp, parameters, 1, &file);
if (err)
{
/* No filename specified, can't read file, modified, or out of memory. */
return (err == JB_ERR_FILE ? JB_ERR_OK : err);
}
cur_line = file->lines;
for (line_number = 1; (cur_line != NULL) && (line_number < patternid); line_number++)
{
if (cur_line->type == FILE_LINE_ACTION)
{
section_start_line_number = line_number;
}
cur_line = cur_line->next;
}
if ( (cur_line == NULL)
|| (line_number != patternid)
|| (patternid < 1U)
|| (cur_line->type != FILE_LINE_URL))
{
/* Invalid "patternid" parameter */
edit_free_file(file);
return JB_ERR_CGI_PARAMS;
}
if (NULL == (exports = default_exports(csp, NULL)))
{
edit_free_file(file);
return JB_ERR_MEMORY;
}
err = map(exports, "f", 1, stringify(file->identifier), 0);
if (!err) err = map(exports, "v", 1, file->version_str, 1);
if (!err) err = map(exports, "p", 1, url_encode(lookup(parameters, "p")), 0);
if (!err) err = map(exports, "u", 1, html_encode(cur_line->unprocessed), 0);
if (!err) err = map(exports, "jumptarget", 1, section_target(section_start_line_number), 0);
edit_free_file(file);
if (err)
{
free_map(exports);
return err;
}
return template_fill_for_cgi(csp, "edit-actions-url-form", exports, rsp);
}
/*********************************************************************
*
* Function : cgi_edit_actions_add_url_form
*
* Description : CGI function that displays a form for
* edit-actions-url
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* f : (filename) Identifies the file to edit
* v : (version) File's last-modified time
* s : (section) Line number of section to edit
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
* JB_ERR_CGI_PARAMS if the CGI parameters are not
* specified or not valid.
*
*********************************************************************/
jb_err cgi_edit_actions_add_url_form(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
struct map *exports;
jb_err err;
assert(csp);
assert(rsp);
assert(parameters);
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
return cgi_error_disabled(csp, rsp);
}
if (NULL == (exports = default_exports(csp, NULL)))
{
return JB_ERR_MEMORY;
}
err = map_copy_parameter_html(exports, parameters, "f");
if (!err) err = map_copy_parameter_html(exports, parameters, "v");
if (!err) err = map_copy_parameter_html(exports, parameters, "s");
if (err)
{
free_map(exports);
return err;
}
return template_fill_for_cgi(csp, "edit-actions-add-url-form", exports, rsp);
}
/*********************************************************************
*
* Function : cgi_edit_actions_remove_url_form
*
* Description : CGI function that displays a form for
* edit-actions-url
*
* Parameters :
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : rsp = http_response data structure for output
* 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* f : (number) The action file identifier.
* v : (version) File's last-modified time
* p : (pattern) Line number of pattern to edit
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
* JB_ERR_CGI_PARAMS if the CGI parameters are not
* specified or not valid.
*
*********************************************************************/
jb_err cgi_edit_actions_remove_url_form(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
struct map * exports;
unsigned patternid;
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
unsigned section_start_line_number = 0;
jb_err err;
assert(csp);
assert(rsp);
assert(parameters);
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
return cgi_error_disabled(csp, rsp);
}
err = get_number_param(csp, parameters, "p", &patternid);
if (err)
{
return err;
}
err = edit_read_actions_file(csp, rsp, parameters, 1, &file);
if (err)
{
/* No filename specified, can't read file, modified, or out of memory. */
return (err == JB_ERR_FILE ? JB_ERR_OK : err);
}
cur_line = file->lines;
for (line_number = 1; (cur_line != NULL) && (line_number < patternid); line_number++)
{
if (cur_line->type == FILE_LINE_ACTION)
{
section_start_line_number = line_number;
}
cur_line = cur_line->next;
}
if ( (cur_line == NULL)
|| (line_number != patternid)
|| (patternid < 1U)
|| (cur_line->type != FILE_LINE_URL))
{
/* Invalid "patternid" parameter */
edit_free_file(file);
return JB_ERR_CGI_PARAMS;
}
if (NULL == (exports = default_exports(csp, NULL)))
{
edit_free_file(file);
return JB_ERR_MEMORY;
}
err = map(exports, "f", 1, stringify(file->identifier), 0);
if (!err) err = map(exports, "v", 1, file->version_str, 1);
if (!err) err = map(exports, "p", 1, url_encode(lookup(parameters, "p")), 0);
if (!err) err = map(exports, "u", 1, html_encode(cur_line->unprocessed), 0);
if (!err) err = map(exports, "jumptarget", 1, section_target(section_start_line_number), 0);
if (!err) err = map(exports, "actions-file", 1, html_encode(file->filename), 0);
edit_free_file(file);
if (err)
{
free_map(exports);
return err;
}
return template_fill_for_cgi(csp, "edit-actions-remove-url-form", exports, rsp);
}
/*********************************************************************
*
* Function : edit_write_file
*
* Description : Write a complete file to disk.
*
* Parameters :
* 1 : file = File to write.
*
* Returns : JB_ERR_OK on success
* JB_ERR_FILE on error writing to file.
* JB_ERR_MEMORY on out of memory
*
*********************************************************************/
jb_err edit_write_file(struct editable_file * file)
{
FILE * fp;
struct file_line * cur_line;
struct stat statbuf[1];
char version_buf[22]; /* 22 = ceil(log10(2^64)) + 2 = max number of
digits in time_t, assuming this is a 64-bit
machine, plus null terminator, plus one
for paranoia */
assert(file);
assert(file->filename);
if (NULL == (fp = fopen(file->filename, "wb")))
{
return JB_ERR_FILE;
}
cur_line = file->lines;
while (cur_line != NULL)
{
if (cur_line->raw)
{
if (fputs(cur_line->raw, fp) < 0)
{
fclose(fp);
return JB_ERR_FILE;
}
}
else
{
if (cur_line->prefix)
{
if (fputs(cur_line->prefix, fp) < 0)
{
fclose(fp);
return JB_ERR_FILE;
}
}
if (cur_line->unprocessed)
{
if (NULL != strchr(cur_line->unprocessed, '#'))
{
/* Must quote '#' characters */
int numhash = 0;
size_t len;
char * src;
char * dest;
char * str;
/* Count number of # characters, so we know length of output string */
src = cur_line->unprocessed;
while (NULL != (src = strchr(src, '#')))
{
numhash++;
src++;
}
assert(numhash > 0);
/* Allocate new memory for string */
len = strlen(cur_line->unprocessed) + (size_t)numhash;
str = malloc_or_die(len + 1);
/* Copy string but quote hashes */
src = cur_line->unprocessed;
dest = str;
while (*src)
{
if (*src == '#')
{
*dest++ = '\\';
numhash--;
assert(numhash >= 0);
}
*dest++ = *src++;
}
*dest = '\0';
assert(numhash == 0);
assert(strlen(str) == len);
assert(str == dest - len);
assert(src - len <= cur_line->unprocessed);
if ((strlen(str) != len) || (numhash != 0))
{
/*
* Escaping didn't work as expected, go spread the news.
* Only reached in non-debugging builds.
*/
log_error(LOG_LEVEL_ERROR,
"Looks like hash escaping failed. %s might be corrupted now.",
file->filename);
}
if (fputs(str, fp) < 0)
{
free(str);
fclose(fp);
return JB_ERR_FILE;
}
free(str);
}
else
{
/* Can write without quoting '#' characters. */
if (fputs(cur_line->unprocessed, fp) < 0)
{
fclose(fp);
return JB_ERR_FILE;
}
}
if (fputs(NEWLINE(file->newline), fp) < 0)
{
fclose(fp);
return JB_ERR_FILE;
}
}
else
{
/* FIXME: Write data from file->data->whatever */
assert(0);
}
}
cur_line = cur_line->next;
}
fclose(fp);
/* Update the version stamp in the file structure, since we just
* wrote to the file & changed it's date.
*/
if (stat(file->filename, statbuf) < 0)
{
/* Error, probably file not found. */
return JB_ERR_FILE;
}
file->version = (unsigned)statbuf->st_mtime;
/* Correct file->version_str */
freez(file->version_str);
snprintf(version_buf, sizeof(version_buf), "%u", file->version);
version_buf[sizeof(version_buf)-1] = '\0';
file->version_str = strdup_or_die(version_buf);
return JB_ERR_OK;
}
/*********************************************************************
*
* Function : edit_free_file
*
* Description : Free a complete file in memory.
*
* Parameters :
* 1 : file = Data structure to free.
*
* Returns : N/A
*
*********************************************************************/
void edit_free_file(struct editable_file * file)
{
if (!file)
{
/* Silently ignore NULL pointer */
return;
}
edit_free_file_lines(file->lines);
freez(file->version_str);
file->version = 0;
file->parse_error_text = NULL; /* Statically allocated */
file->parse_error = NULL;
free(file);
}
/*********************************************************************
*
* Function : edit_free_file_lines
*
* Description : Free an entire linked list of file lines.
*
* Parameters :
* 1 : first_line = Data structure to free.
*
* Returns : N/A
*
*********************************************************************/
static void edit_free_file_lines(struct file_line * first_line)
{
struct file_line * next_line;
while (first_line != NULL)
{
next_line = first_line->next;
first_line->next = NULL;
freez(first_line->raw);
freez(first_line->prefix);
freez(first_line->unprocessed);
switch(first_line->type)
{
case 0: /* special case if memory zeroed */
case FILE_LINE_UNPROCESSED:
case FILE_LINE_BLANK:
case FILE_LINE_ALIAS_HEADER:
case FILE_LINE_SETTINGS_HEADER:
case FILE_LINE_DESCRIPTION_HEADER:
case FILE_LINE_DESCRIPTION_ENTRY:
case FILE_LINE_ALIAS_ENTRY:
case FILE_LINE_URL:
/* No data is stored for these */
break;
case FILE_LINE_ACTION:
free_action(first_line->data.action);
break;
case FILE_LINE_SETTINGS_ENTRY:
freez(first_line->data.setting.name);
freez(first_line->data.setting.svalue);
break;
default:
/* Should never happen */
assert(0);
break;
}
first_line->type = 0; /* paranoia */
free(first_line);
first_line = next_line;
}
}
/*********************************************************************
*
* Function : match_actions_file_header_line
*
* Description : Match an actions file {{header}} line
*
* Parameters :
* 1 : line = String from file
* 2 : name = Header to match against
*
* Returns : 0 iff they match.
*
*********************************************************************/
static int match_actions_file_header_line(const char * line, const char * name)
{
size_t len;
assert(line);
assert(name);
/* Look for "{{" */
if ((line[0] != '{') || (line[1] != '{'))
{
return 1;
}
line += 2;
/* Look for optional whitespace */
while ((*line == ' ') || (*line == '\t'))
{
line++;
}
/* Look for the specified name (case-insensitive) */
len = strlen(name);
if (0 != strncmpic(line, name, len))
{
return 1;
}
line += len;
/* Look for optional whitespace */
while ((*line == ' ') || (*line == '\t'))
{
line++;
}
/* Look for "}}" and end of string*/
if ((line[0] != '}') || (line[1] != '}') || (line[2] != '\0'))